chore: update known versions for 0.9.18

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.0
to 6.0.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/checkout/releases">actions/checkout's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Update all references from v5 and v4 to v6 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2314">actions/checkout#2314</a></li>
<li>Add worktree support for persist-credentials includeIf by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2327">actions/checkout#2327</a></li>
<li>Clarify v6 README by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2328">actions/checkout#2328</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v6...v6.0.1">https://github.com/actions/checkout/compare/v6...v6.0.1</a></p>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update README to include Node.js 24 support details and requirements
by <a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2248">actions/checkout#2248</a></li>
<li>Persist creds to a separate file by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2286">actions/checkout#2286</a></li>
<li>v6-beta by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2298">actions/checkout#2298</a></li>
<li>update readme/changelog for v6 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2311">actions/checkout#2311</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v5.0.0...v6.0.0">https://github.com/actions/checkout/compare/v5.0.0...v6.0.0</a></p>
<h2>v6-beta</h2>
<h2>What's Changed</h2>
<p>Updated persist-credentials to store the credentials under
<code>$RUNNER_TEMP</code> instead of directly in the local git
config.</p>
<p>This requires a minimum Actions Runner version of <a
href="https://github.com/actions/runner/releases/tag/v2.329.0">v2.329.0</a>
to access the persisted credentials for <a
href="https://docs.github.com/en/actions/tutorials/use-containerized-services/create-a-docker-container-action">Docker
container action</a> scenarios.</p>
<h2>v5.0.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Port v6 cleanup to v5 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2301">actions/checkout#2301</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v5...v5.0.1">https://github.com/actions/checkout/compare/v5...v5.0.1</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/actions/checkout/blob/main/CHANGELOG.md">actions/checkout's
changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>v6.0.0</h2>
<ul>
<li>Persist creds to a separate file by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2286">actions/checkout#2286</a></li>
<li>Update README to include Node.js 24 support details and requirements
by <a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2248">actions/checkout#2248</a></li>
</ul>
<h2>v5.0.1</h2>
<ul>
<li>Port v6 cleanup to v5 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2301">actions/checkout#2301</a></li>
</ul>
<h2>v5.0.0</h2>
<ul>
<li>Update actions checkout to use node 24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2226">actions/checkout#2226</a></li>
</ul>
<h2>v4.3.1</h2>
<ul>
<li>Port v6 cleanup to v4 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2305">actions/checkout#2305</a></li>
</ul>
<h2>v4.3.0</h2>
<ul>
<li>docs: update README.md by <a
href="https://github.com/motss"><code>@​motss</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1971">actions/checkout#1971</a></li>
<li>Add internal repos for checking out multiple repositories by <a
href="https://github.com/mouismail"><code>@​mouismail</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1977">actions/checkout#1977</a></li>
<li>Documentation update - add recommended permissions to Readme by <a
href="https://github.com/benwells"><code>@​benwells</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2043">actions/checkout#2043</a></li>
<li>Adjust positioning of user email note and permissions heading by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2044">actions/checkout#2044</a></li>
<li>Update README.md by <a
href="https://github.com/nebuk89"><code>@​nebuk89</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2194">actions/checkout#2194</a></li>
<li>Update CODEOWNERS for actions by <a
href="https://github.com/TingluoHuang"><code>@​TingluoHuang</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2224">actions/checkout#2224</a></li>
<li>Update package dependencies by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2236">actions/checkout#2236</a></li>
</ul>
<h2>v4.2.2</h2>
<ul>
<li><code>url-helper.ts</code> now leverages well-known environment
variables by <a href="https://github.com/jww3"><code>@​jww3</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/1941">actions/checkout#1941</a></li>
<li>Expand unit test coverage for <code>isGhes</code> by <a
href="https://github.com/jww3"><code>@​jww3</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1946">actions/checkout#1946</a></li>
</ul>
<h2>v4.2.1</h2>
<ul>
<li>Check out other refs/* by commit if provided, fall back to ref by <a
href="https://github.com/orhantoy"><code>@​orhantoy</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1924">actions/checkout#1924</a></li>
</ul>
<h2>v4.2.0</h2>
<ul>
<li>Add Ref and Commit outputs by <a
href="https://github.com/lucacome"><code>@​lucacome</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1180">actions/checkout#1180</a></li>
<li>Dependency updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>- <a
href="https://redirect.github.com/actions/checkout/pull/1777">actions/checkout#1777</a>,
<a
href="https://redirect.github.com/actions/checkout/pull/1872">actions/checkout#1872</a></li>
</ul>
<h2>v4.1.7</h2>
<ul>
<li>Bump the minor-npm-dependencies group across 1 directory with 4
updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1739">actions/checkout#1739</a></li>
<li>Bump actions/checkout from 3 to 4 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1697">actions/checkout#1697</a></li>
<li>Check out other refs/* by commit by <a
href="https://github.com/orhantoy"><code>@​orhantoy</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1774">actions/checkout#1774</a></li>
<li>Pin actions/checkout's own workflows to a known, good, stable
version. by <a href="https://github.com/jww3"><code>@​jww3</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1776">actions/checkout#1776</a></li>
</ul>
<h2>v4.1.6</h2>
<ul>
<li>Check platform to set archive extension appropriately by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1732">actions/checkout#1732</a></li>
</ul>
<h2>v4.1.5</h2>
<ul>
<li>Update NPM dependencies by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1703">actions/checkout#1703</a></li>
<li>Bump github/codeql-action from 2 to 3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1694">actions/checkout#1694</a></li>
<li>Bump actions/setup-node from 1 to 4 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1696">actions/checkout#1696</a></li>
<li>Bump actions/upload-artifact from 2 to 4 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1695">actions/checkout#1695</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="8e8c483db8"><code>8e8c483</code></a>
Clarify v6 README (<a
href="https://redirect.github.com/actions/checkout/issues/2328">#2328</a>)</li>
<li><a
href="033fa0dc0b"><code>033fa0d</code></a>
Add worktree support for persist-credentials includeIf (<a
href="https://redirect.github.com/actions/checkout/issues/2327">#2327</a>)</li>
<li><a
href="c2d88d3ecc"><code>c2d88d3</code></a>
Update all references from v5 and v4 to v6 (<a
href="https://redirect.github.com/actions/checkout/issues/2314">#2314</a>)</li>
<li><a
href="1af3b93b68"><code>1af3b93</code></a>
update readme/changelog for v6 (<a
href="https://redirect.github.com/actions/checkout/issues/2311">#2311</a>)</li>
<li><a
href="71cf2267d8"><code>71cf226</code></a>
v6-beta (<a
href="https://redirect.github.com/actions/checkout/issues/2298">#2298</a>)</li>
<li><a
href="069c695914"><code>069c695</code></a>
Persist creds to a separate file (<a
href="https://redirect.github.com/actions/checkout/issues/2286">#2286</a>)</li>
<li><a
href="ff7abcd0c3"><code>ff7abcd</code></a>
Update README to include Node.js 24 support details and requirements (<a
href="https://redirect.github.com/actions/checkout/issues/2248">#2248</a>)</li>
<li>See full diff in <a
href="08c6903cd8...8e8c483db8">compare
view</a></li>
</ul>
</details>
<br />


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.github/actionlint.yaml

@@ -0,0 +1,13 @@
+self-hosted-runner:
+  # Custom labels of self-hosted or large GitHub hosted runners
+  # so that actionlint knows that they are not a typo
+  labels:
+    - selfhosted-ubuntu-arm64
+# Configuration variables in array of strings defined in your repository or
+# organization. `null` means disabling configuration variables check.
+# Empty array means no configuration variable is allowed.
+config-variables: null
+paths:
+  .github/workflows/test.yml:
+    ignore:
+      - 'invalid runner name.+'

.github/copilot-instructions.md

@@ -0,0 +1,263 @@
+# Copilot Instructions for setup-uv
+
+This document provides essential information for GitHub Copilot coding agents working on the `astral-sh/setup-uv` repository.
+
+## Repository Overview
+
+**setup-uv** is a GitHub Action that sets up the [uv](https://docs.astral.sh/uv/)
+Python package installer in GitHub Actions workflows.
+It's a TypeScript-based action that downloads uv binaries, manages caching, handles version resolution,
+and configures the environment for subsequent workflow steps.
+
+### Key Features
+
+- Downloads and installs specific uv versions from GitHub releases
+- Supports version resolution from config files (pyproject.toml, uv.toml, .tool-versions)
+- Implements intelligent caching for both uv cache and Python installations
+- Provides cross-platform support (Linux, macOS, Windows, including ARM architectures)
+- Includes problem matchers for Python error reporting
+- Supports environment activation and custom tool directories
+
+## Repository Structure
+
+**Size**: Small-medium repository (~50 source files, ~400 total files including dependencies)
+**Languages**: TypeScript (primary), JavaScript (compiled output), JSON (configuration)
+**Runtime**: Node.js 24 (GitHub Actions runtime)
+**Key Dependencies**: @actions/core, @actions/cache, @actions/tool-cache, @octokit/core
+
+### Core Architecture
+
+```
+src/
+├── setup-uv.ts          # Main entry point and orchestration
+├── save-cache.ts        # Post-action cache saving logic
+├── update-known-versions.ts  # Maintenance script for version updates
+├── cache/               # Cache management functionality
+├── download/            # Version resolution and binary downloading
+├── utils/               # Input parsing, platform detection, configuration
+└── version/             # Version resolution from various file formats
+```
+
+### Key Files and Locations
+
+- **Action Definition**: `action.yml` - Defines all inputs/outputs and entry points
+- **Main Source**: `src/setup-uv.ts` - Primary action logic
+- **Configuration**: `biome.json` (linting), `tsconfig.json` (TypeScript), `jest.config.js` (testing)
+- **Compiled Output**: `dist/` - Contains compiled Node.js bundles (auto-generated, committed)
+- **Test Fixtures**: `__tests__/fixtures/` - Sample projects for different configuration scenarios
+- **Workflows**: `.github/workflows/test.yml` - Comprehensive CI/CD pipeline
+
+## Build and Development Process
+
+### Prerequisites
+
+- Node.js 24+ (matches GitHub Actions runtime)
+- npm (included with Node.js)
+
+### Essential Commands (ALWAYS run in this order)
+
+#### 1. Install Dependencies
+
+```bash
+npm ci --ignore-scripts
+```
+
+**Timing**: ~20-30 seconds
+**Note**: Always run this first after cloning or when package.json changes
+
+#### 2. Build TypeScript
+
+```bash
+npm run build
+```
+
+**Timing**: ~5-10 seconds
+**Purpose**: Compiles TypeScript source to JavaScript in `lib/` directory
+
+#### 3. Lint and Format Code
+
+```bash
+npm run check
+```
+
+**Timing**: ~2-5 seconds
+**Tool**: Biome (replaces ESLint/Prettier)
+**Auto-fixes**: Formatting, import organization, basic linting issues
+
+#### 4. Package for Distribution
+
+```bash
+npm run package
+```
+
+**Timing**: ~20-30 seconds
+**Purpose**: Creates bundled distributions in `dist/` using @vercel/ncc
+**Critical**: This step MUST be run before committing - the `dist/` files are used by GitHub Actions
+
+#### 5. Run Tests
+
+```bash
+npm test
+```
+
+**Timing**: ~10-15 seconds
+**Framework**: Jest with TypeScript support
+**Coverage**: Unit tests for version resolution, input parsing, checksum validation
+
+#### 6. Complete Validation (Recommended)
+
+```bash
+npm run all
+```
+
+**Timing**: ~60-90 seconds
+**Purpose**: Runs build → check → package → test in sequence
+**Use**: Before making pull requests or when unsure about build state
+
+### Important Build Notes
+
+**CRITICAL**: Always run `npm run package` after making code changes. The `dist/` directory contains the compiled bundles that GitHub Actions actually executes. Forgetting this step will cause your changes to have no effect.
+
+**TypeScript Warnings**: You may see ts-jest warnings about "isolatedModules" - these are harmless and don't affect functionality.
+
+**Biome**: This project uses Biome instead of ESLint/Prettier. Run `npm run check` to fix formatting and linting issues automatically.
+
+## Testing Strategy
+
+### Unit Tests
+
+- **Location**: `__tests__/` directory
+- **Framework**: Jest with ts-jest transformer
+- **Coverage**: Version resolution, input parsing, checksum validation, utility functions
+
+### Integration Tests
+
+- **Location**: `.github/workflows/test.yml`
+- **Scope**: Full end-to-end testing across multiple platforms and scenarios
+- **Key Test Categories**:
+  - Version installation (specific, latest, semver ranges)
+  - Cache behavior (setup, restore, invalidation)
+  - Cross-platform compatibility (Ubuntu, macOS, Windows, ARM)
+  - Configuration file parsing (pyproject.toml, uv.toml, requirements.txt)
+  - Error handling and edge cases
+
+### Test Fixtures
+
+Located in `__tests__/fixtures/`, these provide sample projects with different configurations:
+- `pyproject-toml-project/` - Standard Python project with uv version specification
+- `uv-toml-project/` - Project using uv.toml configuration
+- `requirements-txt-project/` - Legacy requirements.txt format
+- `cache-dir-defined-project/` - Custom cache directory configuration
+
+## Continuous Integration
+
+### GitHub Workflows
+
+#### Primary Test Suite (`.github/workflows/test.yml`)
+
+- **Triggers**: PRs, pushes to main, manual dispatch
+- **Matrix**: Multiple OS (Ubuntu, macOS, Windows), architecture (x64, ARM), and configuration combinations
+- **Duration**: ~5 minutes for full matrix
+- **Key Validations**:
+  - Cross-platform installation and functionality
+  - Cache behavior and performance
+  - Version resolution from various sources
+  - Tool directory configurations
+  - Problem matcher functionality
+
+#### Maintenance Workflows
+
+- **CodeQL Analysis**: Security scanning on pushes/PRs
+- **Update Known Versions**: Daily job to sync with latest uv releases
+- **Dependabot**: Automated dependency updates
+
+### Pre-commit Validation
+
+The CI runs these checks that you should run locally:
+1. `npm run all` - Complete build and test suite
+2. ActionLint - GitHub Actions workflow validation
+3. Change detection - Ensures no uncommitted build artifacts
+
+## Key Configuration Files
+
+### Action Configuration (`action.yml`)
+
+Defines 20+ inputs including version specifications,
+cache settings, tool directories, and environment options.
+This file is the authoritative source for understanding available action parameters.
+
+### TypeScript Configuration (`tsconfig.json`)
+
+- Target: ES2024
+- Module: nodenext (Node.js modules)
+- Strict mode enabled
+- Output directory: `lib/`
+
+### Linting Configuration (`biome.json`)
+
+- Formatter and linter combined
+- Enforces consistent code style
+- Automatically organizes imports and sorts object keys
+
+## Common Development Patterns
+
+### Making Code Changes
+
+1. Edit TypeScript source files in `src/`
+2. Run `npm run build` to compile
+3. Run `npm run check` to format and lint
+4. Run `npm run package` to update distribution bundles
+5. Run `npm test` to verify functionality
+6. Commit all changes including `dist/` files
+
+### Adding New Features
+
+- Follow existing patterns in `src/utils/inputs.ts` for new action inputs
+- Update `action.yml` to declare new inputs/outputs
+- Add corresponding tests in `__tests__/`
+- Add a test in `.github/workflows/test.yml` if it affects integration
+- Update README.md with usage examples
+
+### Cache-Related Changes
+
+- Cache logic is complex and affects performance significantly
+- Test with multiple cache scenarios (hit, miss, invalidation)
+- Consider impact on both GitHub-hosted and self-hosted runners
+- Validate cache key generation and dependency detection
+
+### Version Resolution Changes
+
+- Version resolution supports multiple file formats and precedence rules
+- Test with fixtures in `__tests__/fixtures/`
+- Consider backward compatibility with existing projects
+- Validate semver and PEP 440 specification handling
+
+## Troubleshooting
+
+### Build Failures
+
+- **"Module not found"**: Run `npm ci --ignore-scripts` to ensure dependencies are installed
+- **TypeScript errors**: Check `tsconfig.json` and ensure all imports are valid
+- **Test failures**: Check if test fixtures have been modified or if logic changes broke assumptions
+
+### Action Failures in Workflows
+
+- **Changes not taking effect**: Ensure `npm run package` was run and `dist/` files committed
+- **Version resolution issues**: Check version specification format and file existence
+- **Cache problems**: Verify cache key generation and dependency glob patterns
+
+### Common Gotchas
+
+- **Forgetting to package**: Code changes won't work without running `npm run package`
+- **Platform differences**: Windows paths use backslashes, test cross-platform behavior
+- **Cache invalidation**: Cache keys are sensitive to dependency file changes
+- **Tool directory permissions**: Some platforms require specific directory setups
+
+## Trust These Instructions
+
+These instructions are comprehensive and current. Only search for additional information if:
+- You encounter specific error messages not covered here
+- You need to understand implementation details of specific functions
+- The instructions appear outdated (check repository commit history)
+
+For most development tasks, following the build process and development patterns outlined above will be sufficient.

.github/dependabot.yml

@@ -4,8 +4,12 @@ updates:
     directory: /
     schedule:
       interval: daily
+    cooldown:
+      default-days: 7
 
   - package-ecosystem: npm
     directory: /
     schedule:
       interval: daily
+    cooldown:
+      default-days: 7

.github/python.json

@@ -4,13 +4,13 @@
       "owner": "python",
       "pattern": [
         {
-          "regexp": "^\\s*File\\s\\\"(.*)\\\",\\sline\\s(\\d+),\\sin\\s(.*)$",
           "file": 1,
-          "line": 2
+          "line": 2,
+          "regexp": "^\\s*File\\s\\\"(.*)\\\",\\sline\\s(\\d+),\\sin\\s(.*)$"
         },
         {
-          "regexp": "^\\s*raise\\s(.*)\\(\\'(.*)\\'\\)$",
-          "message": 2
+          "message": 2,
+          "regexp": "^\\s*raise\\s(.*)\\(\\'(.*)\\'\\)$"
         }
       ]
     }

.github/release-drafter.yml

@@ -19,7 +19,7 @@ categories:
     labels:
       - "maintenance"
       - "ci"
-      - "update-known-checksums"
+      - "update-known-versions"
   - title: "📚 Documentation"
     labels:
       - "documentation"

.github/scripts/check-all-tests-passed-needs.ts

@@ -0,0 +1,35 @@
+import * as fs from "node:fs";
+import * as yaml from "js-yaml";
+
+interface WorkflowJob {
+  needs?: string[];
+  [key: string]: unknown;
+}
+
+interface Workflow {
+  jobs: Record<string, WorkflowJob>;
+  [key: string]: unknown;
+}
+
+const workflow = yaml.load(
+  fs.readFileSync("../workflows/test.yml", "utf8"),
+) as Workflow;
+const jobs = Object.keys(workflow.jobs);
+const allTestsPassed = workflow.jobs["all-tests-passed"];
+const needs: string[] = allTestsPassed.needs || [];
+
+const expectedNeeds = jobs.filter((j) => j !== "all-tests-passed");
+const missing = expectedNeeds.filter((j) => !needs.includes(j));
+
+if (missing.length > 0) {
+  console.error(
+    `Missing jobs in all-tests-passed needs: ${missing.join(", ")}`,
+  );
+  console.info(
+    "Please add the missing jobs to the needs section of all-tests-passed in test.yml.",
+  );
+  process.exit(1);
+}
+console.log(
+  "All jobs in test.yml are in the needs section of all-tests-passed.",
+);

.github/workflows/check-dist.yml

@@ -1,51 +0,0 @@
-# `dist/index.js` is a special file in Actions.
-# When you reference an action with `uses:` in a workflow,
-# `index.js` is the code that will run.
-# For our project, we generate this file through a build process from other source files.
-# We need to make sure the checked-in `index.js` actually matches what we expect it to be.
-name: Check dist/
-
-on:
-  workflow_dispatch:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-
-jobs:
-  check-dist:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Set up Node.js 20
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-
-      - name: Install dependencies
-        run: npm ci
-
-      - name: Rebuild the dist/ directory
-        run: |
-          npm run build
-          npm run package
-
-      - name: Compare the expected and actual dist/ directories
-        run: |
-          if [ "$(git diff --ignore-space-at-eol dist/ | wc -l)" -gt "0" ]; then
-            echo "Detected uncommitted changes after build.  See status below:"
-            git diff --text -v
-            exit 1
-          fi
-        id: diff
-
-      # If index.js was different than expected, upload the expected version as an artifact
-      - uses: actions/upload-artifact@v4
-        if: ${{ failure() && steps.diff.conclusion == 'failure' }}
-        with:
-          name: dist
-          path: dist/

.github/workflows/codeql-analysis.yml

@@ -21,6 +21,8 @@ on:
     branches:
       - main
 
+permissions: {}
+
 jobs:
   analyze:
     name: Analyze
@@ -39,11 +41,13 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          persist-credentials: false
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@fe4161a26a8629af62121b670040955b330f9af2 # v4.31.6
         with:
           languages: ${{ matrix.language }}
           source-root: src
@@ -55,7 +59,7 @@ jobs:
       # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
       # If this step fails, then you should remove it and run the build manually (see below)
       - name: Autobuild
-        uses: github/codeql-action/autobuild@v3
+        uses: github/codeql-action/autobuild@fe4161a26a8629af62121b670040955b330f9af2 # v4.31.6
 
       # ℹ️ Command-line programs to run using the OS shell.
       # 📚 https://git.io/JvXDl
@@ -69,4 +73,4 @@ jobs:
       #   make release
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@fe4161a26a8629af62121b670040955b330f9af2 # v4.31.6

.github/workflows/release-drafter.yml

@@ -8,12 +8,17 @@ on:
     branches:
       - main
 
+permissions: {}
+
 jobs:
   update_release_draft:
     name: ✏️ Draft release
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
+    permissions:
+      contents: write
+      pull-requests: read
     steps:
       - name: 🚀 Run Release Drafter
-        uses: release-drafter/release-drafter@v6.1.0
+        uses: release-drafter/release-drafter@b1476f6e6eb133afa41ed8589daba6dc69b4d3f5 # v6.1.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test-cache-windows.yml

@@ -1,46 +0,0 @@
-name: "test-cache-windows"
-on:
-  workflow_dispatch:
-  pull_request:
-    branches:
-      - main
-  push:
-    branches:
-      - main
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  test-setup-cache:
-    runs-on: windows-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Setup with cache
-        uses: ./
-        with:
-          enable-cache: true
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}
-      - run: uv sync
-        working-directory: __tests__\fixtures\uv-project
-  test-restore-cache:
-    runs-on: windows-latest
-    needs: test-setup-cache
-    steps:
-      - uses: actions/checkout@v4
-      - name: Restore with cache
-        id: restore
-        uses: ./
-        with:
-          enable-cache: true
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}
-      - name: Cache was hit
-        run: |
-          if ($env:CACHE_HIT -ne "true") {
-            exit 1
-          }
-        env:
-          CACHE_HIT: ${{ steps.restore.outputs.cache-hit }}
-      - run: uv sync
-        working-directory: __tests__\fixtures\uv-project

.github/workflows/test-cache.yml

@@ -1,232 +0,0 @@
-name: "test-cache"
-on:
-  workflow_dispatch:
-  pull_request:
-    branches:
-      - main
-  push:
-    branches:
-      - main
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  test-setup-cache:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        enable-cache: [ "true", "false", "auto" ]
-        os: ["ubuntu-latest", "selfhosted-ubuntu-arm64"]
-    steps:
-      - uses: actions/checkout@v4
-      - name: Setup with cache
-        uses: ./
-        with:
-          enable-cache: ${{ matrix.enable-cache }}
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-${{ matrix.os }}-${{ matrix.enable-cache }}
-      - run: uv sync
-        working-directory: __tests__/fixtures/uv-project
-  test-restore-cache:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        enable-cache: [ "true", "false", "auto" ]
-        os: [ "ubuntu-latest", "selfhosted-ubuntu-arm64" ]
-    needs: test-setup-cache
-    steps:
-      - uses: actions/checkout@v4
-      - name: Restore with cache
-        id: restore
-        uses: ./
-        with:
-          enable-cache: ${{ matrix.enable-cache }}
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-${{ matrix.os }}-${{ matrix.enable-cache }}
-      - name: Cache was hit
-        if: ${{ matrix.enable-cache == 'true' || (matrix.enable-cache == 'auto' && matrix.os == 'ubuntu-latest') }}
-        run: |
-          if [ "$CACHE_HIT" != "true" ]; then
-            exit 1
-          fi
-        env:
-          CACHE_HIT: ${{ steps.restore.outputs.cache-hit }}
-      - name: Cache was not hit
-        if: ${{ matrix.enable-cache == 'false' || (matrix.enable-cache == 'auto' && matrix.os == 'selfhosted-ubuntu-arm64') }}
-        run: |
-          if [ "$CACHE_HIT" == "true" ]; then
-            exit 1
-          fi
-        env:
-          CACHE_HIT: ${{ steps.restore.outputs.cache-hit }}
-      - run: uv sync
-        working-directory: __tests__/fixtures/uv-project
-  test-setup-cache-requirements-txt:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Setup with cache
-        uses: ./
-        with:
-          enable-cache: true
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-requirements-txt
-      - run: |
-          uv venv
-          uv pip install -r requirements.txt
-        working-directory: __tests__/fixtures/requirements-txt-project
-  test-restore-cache-requirements-txt:
-    runs-on: ubuntu-latest
-    needs: test-setup-cache
-    steps:
-      - uses: actions/checkout@v4
-      - name: Restore with cache
-        id: restore
-        uses: ./
-        with:
-          enable-cache: true
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-requirements-txt
-      - name: Cache was hit
-        run: |
-          if [ "$CACHE_HIT" != "true" ]; then
-            exit 1
-          fi
-        env:
-          CACHE_HIT: ${{ steps.restore.outputs.cache-hit }}
-      - run: |
-          uv venv
-          uv pip install -r requirements.txt
-        working-directory: __tests__/fixtures/requirements-txt-project
-
-  test-setup-cache-dependency-glob:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Setup with cache
-        uses: ./
-        with:
-          enable-cache: true
-          cache-dependency-glob: |
-            __tests__/fixtures/uv-project/uv.lock
-            **/pyproject.toml
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-dependency-glob
-      - run: uv sync
-        working-directory: __tests__/fixtures/uv-project
-  test-restore-cache-dependency-glob:
-    runs-on: ubuntu-latest
-    needs: test-setup-cache-dependency-glob
-    steps:
-      - uses: actions/checkout@v4
-      - name: Change pyproject.toml
-        run: |
-          echo '[tool.uv]' >> __tests__/fixtures/uv-project/pyproject.toml
-          echo 'dev-dependencies = []' >> __tests__/fixtures/uv-project/pyproject.toml
-      - name: Restore with cache
-        id: restore
-        uses: ./
-        with:
-          enable-cache: true
-          cache-dependency-glob: |
-            __tests__/fixtures/uv-project/uv.lock
-            **/pyproject.toml
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-dependency-glob
-          ignore-nothing-to-cache: true
-      - name: Cache was not hit
-        run: |
-          if [ "$CACHE_HIT" == "true" ]; then
-            exit 1
-          fi
-        env:
-          CACHE_HIT: ${{ steps.restore.outputs.cache-hit }}
-
-  test-setup-cache-local:
-    runs-on: selfhosted-ubuntu-arm64
-    steps:
-      - uses: actions/checkout@v4
-      - name: Setup with cache
-        uses: ./
-        with:
-          enable-cache: true
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-local
-          cache-local-path: /tmp/uv-cache
-      - run: uv sync
-        working-directory: __tests__/fixtures/uv-project
-  test-restore-cache-local:
-    runs-on: selfhosted-ubuntu-arm64
-    needs: test-setup-cache-local
-    steps:
-      - uses: actions/checkout@v4
-      - name: Restore with cache
-        id: restore
-        uses: ./
-        with:
-          enable-cache: true
-          cache-suffix: ${{ github.run_id }}-${{ github.run_attempt }}-test-setup-cache-local
-          cache-local-path: /tmp/uv-cache
-      - name: Cache was hit
-        run: |
-          if [ "$CACHE_HIT" != "true" ]; then
-            exit 1
-          fi
-        env:
-          CACHE_HIT: ${{ steps.restore.outputs.cache-hit }}
-      - run: uv sync
-        working-directory: __tests__/fixtures/uv-project
-
-  test-tilde-expansion-cache-local-path:
-    runs-on: selfhosted-ubuntu-arm64
-    steps:
-      - uses: actions/checkout@v4
-      - name: Create cache directory
-        run: mkdir -p ~/uv-cache
-        shell: bash
-      - name: Setup with cache
-        uses: ./
-        with:
-          cache-local-path: ~/uv-cache/cache-local-path
-      - run: uv sync
-        working-directory: __tests__/fixtures/uv-project
-
-  test-tilde-expansion-cache-dependency-glob:
-    runs-on: selfhosted-ubuntu-arm64
-    steps:
-      - uses: actions/checkout@v4
-      - name: Create cache directory
-        run: mkdir -p ~/uv-cache
-        shell: bash
-      - name: Create cache dependency glob file
-        run: touch ~/uv-cache.glob
-        shell: bash
-      - name: Setup with cache
-        uses: ./
-        with:
-          enable-cache: true
-          cache-local-path: ~/uv-cache/cache-dependency-glob
-          cache-dependency-glob: "~/uv-cache.glob"
-      - run: uv sync
-        working-directory: __tests__/fixtures/uv-project
-
-  cleanup-tilde-expansion-tests:
-    needs:
-      - test-tilde-expansion-cache-local-path
-      - test-tilde-expansion-cache-dependency-glob
-    runs-on: selfhosted-ubuntu-arm64
-    steps:
-      - name: Remove cache directory
-        run: rm -rf ~/uv-cache
-        shell: bash
-      - name: Remove cache dependency glob file
-        run: rm -f ~/uv-cache.glob
-        shell: bash
-
-  test-no-python-version:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Fake pyproject.toml at root
-        run: cp __tests__/fixtures/old-python-constraint-project/pyproject.toml pyproject.toml
-      - name: Setup with cache
-        uses: ./
-        with:
-          enable-cache: true
-      - run: uv sync
-        working-directory: __tests__/fixtures/old-python-constraint-project

.github/workflows/test-windows.yml

@@ -1,30 +0,0 @@
-name: "test-windows"
-on:
-  workflow_dispatch:
-  pull_request:
-    branches:
-      - main
-  push:
-    branches:
-      - main
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  test-default-version:
-    runs-on: windows-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Should not be on path
-        run: |
-          if (!(Get-Command -Name "uv" -ErrorAction SilentlyContinue)) {
-            exit 0
-          } else {
-            exit 1
-          }
-      - name: Setup uv
-        uses: ./
-      - run: uv sync
-        working-directory: __tests__\fixtures\uv-project

.github/workflows/update-known-checksums.yml

@@ -1,34 +0,0 @@
-name: "Update known checksums"
-on:
-  workflow_dispatch:
-  schedule:
-    - cron: "0 4 * * *" # Run every day at 4am UTC
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: "20"
-      - name: Update known checksums
-        id: update-known-checksums
-        run:
-          node dist/update-known-checksums/index.js
-          src/download/checksum/known-checksums.ts ${{ secrets.GITHUB_TOKEN }}
-      - run: npm install && npm run all
-      - name: Create Pull Request
-        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
-        with:
-          commit-message: "chore: update known checksums"
-          title:
-            "chore: update known checksums for ${{
-            steps.update-known-checksums.outputs.latest-version }}"
-          body:
-            "chore: update known checksums for ${{
-            steps.update-known-checksums.outputs.latest-version }}"
-          base: main
-          labels: "automated-pr,update-known-checksums"
-          branch: update-known-checksums-pr
-          delete-branch: true

.github/workflows/update-known-versions.yml

@@ -0,0 +1,70 @@
+name: "Update known versions"
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 4 * * *" # Run every day at 4am UTC
+  repository_dispatch:
+    types: [ pypi_release ]
+
+permissions: {}
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04-arm
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          persist-credentials: true
+      - uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
+        with:
+          node-version: "20"
+      - name: Update known versions
+        id: update-known-versions
+        run:
+          node dist/update-known-versions/index.js
+          src/download/checksum/known-checksums.ts
+          version-manifest.json
+          ${{ secrets.GITHUB_TOKEN }}
+      - name: Check for changes
+        id: changes-exist
+        run: |
+          git status --porcelain
+          if [ -n "$(git status --porcelain)" ]; then
+              echo "changes-exist=true" >> "$GITHUB_OUTPUT"
+          else
+              echo "changes-exist=false" >> "$GITHUB_OUTPUT"
+          fi
+      - name: Compile changes
+        if: ${{ steps.changes-exist.outputs.changes-exist == 'true' }}
+        run: npm ci --ignore-scripts && npm run all
+      - name: Commit and push changes
+        if: ${{ steps.changes-exist.outputs.changes-exist == 'true' }}
+        id: commit-and-push
+        continue-on-error: true
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
+          git add .
+          git commit -m "chore: update known versions for $LATEST_VERSION"
+          git push origin HEAD:refs/heads/main
+        env:
+          LATEST_VERSION: ${{ steps.update-known-versions.outputs.latest-version }}
+
+      - name: Create Pull Request
+        if: ${{ steps.changes-exist.outputs.changes-exist == 'true' && steps.commit-and-push.outcome != 'success' }}
+        uses: peter-evans/create-pull-request@84ae59a2cdc2258d6fa0732dd66352dddae2a412 # v7.0.9
+        with:
+          commit-message: "chore: update known checksums"
+          title:
+            "chore: update known checksums for ${{
+            steps.update-known-versions.outputs.latest-version }}"
+          body:
+            "chore: update known checksums for ${{
+            steps.update-known-versions.outputs.latest-version }}"
+          base: main
+          labels: "automated-pr,update-known-versions"
+          branch: update-known-versions-pr
+          delete-branch: true

.github/workflows/update-major-minor-tags.yml

@@ -8,12 +8,18 @@ on:
     tags:
       - "v*.*.*"
 
+permissions: {}
+
 jobs:
   update_major_minor_tags:
     name: Make sure major and minor tags are up to date on a patch release
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
+    permissions:
+      contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          persist-credentials: true # needed for git push below
       - name: Update Major Minor Tags
         run: |
           set -x

.gitignore

@@ -100,3 +100,6 @@ lib/**/*
 
 # Idea IDEs (PyCharm, WebStorm, IntelliJ, etc)
 .idea/
+
+# Compiled scripts
+.github/scripts/*.js

.nvmrc

@@ -0,0 +1 @@
+24

.vscode/extensions.json

@@ -0,0 +1,3 @@
+{
+  "recommendations": ["biomejs.biome"]
+}

.vscode/settings.json

@@ -0,0 +1,16 @@
+{
+  "editor.codeActionsOnSave": {
+    "source.action.useSortedAttributes.biome": "explicit",
+    "source.action.useSortedKeys.biome": "explicit",
+    "source.fixAll.biome": "explicit"
+  },
+  "editor.defaultFormatter": "biomejs.biome",
+  "editor.formatOnSave": true,
+  "explorer.excludeGitIgnore": false,
+  "search.defaultViewMode": "list",
+  "search.exclude": {
+    "**/node_modules": true
+  },
+  "typescript.enablePromptUseWorkspaceTsdk": true,
+  "typescript.tsdk": "node_modules/typescript/lib"
+}

README.md

@@ -12,21 +12,11 @@ Set up your GitHub Actions workflow with a specific version of [uv](https://docs
 
 - [Usage](#usage)
   - [Install a required-version or latest (default)](#install-a-required-version-or-latest-default)
-  - [Install the latest version](#install-the-latest-version)
-  - [Install a specific version](#install-a-specific-version)
-  - [Install a version by supplying a semver range](#install-a-version-by-supplying-a-semver-range)
-  - [Install a required-version](#install-a-required-version)
+  - [Inputs](#inputs)
+  - [Outputs](#outputs)
   - [Python version](#python-version)
-  - [Validate checksum](#validate-checksum)
-  - [Enable Caching](#enable-caching)
-    - [Cache dependency glob](#cache-dependency-glob)
-  - [Local cache path](#local-cache-path)
-  - [Disable cache pruning](#disable-cache-pruning)
-  - [Ignore nothing to cache](#ignore-nothing-to-cache)
-  - [GitHub authentication token](#github-authentication-token)
-  - [UV_TOOL_DIR](#uv_tool_dir)
-  - [UV_TOOL_BIN_DIR](#uv_tool_bin_dir)
-  - [Tilde Expansion](#tilde-expansion)
+  - [Working directory](#working-directory)
+- [Advanced Configuration](#advanced-configuration)
 - [How it works](#how-it-works)
 - [FAQ](#faq)
 
@@ -36,7 +26,7 @@ Set up your GitHub Actions workflow with a specific version of [uv](https://docs
 
 ```yaml
 - name: Install the latest version of uv
-  uses: astral-sh/setup-uv@v5
+  uses: astral-sh/setup-uv@v7
 ```
 
 If you do not specify a version, this action will look for a [required-version](https://docs.astral.sh/uv/reference/settings/#required-version)
@@ -45,81 +35,112 @@ in a `uv.toml` or `pyproject.toml` file in the repository root. If none is found
 For an example workflow, see
 [here](https://github.com/charliermarsh/autobot/blob/e42c66659bf97b90ca9ff305a19cc99952d0d43f/.github/workflows/ci.yaml).
 
-### Install the latest version
+### Inputs
+
+All inputs and their defaults.
+Have a look under [Advanced Configuration](#advanced-configuration) for detailed documentation on most of them.
 
 ```yaml
-- name: Install the latest version of uv
-  uses: astral-sh/setup-uv@v5
+- name: Install uv with all available options
+  uses: astral-sh/setup-uv@v7
   with:
-    version: "latest"
+    # The version of uv to install (default: searches for version in config files, then latest)
+    version: ""
+
+    # Path to a file containing the version of uv to install (default: searches uv.toml then pyproject.toml)
+    version-file: ""
+
+    # Resolution strategy when resolving version ranges: 'highest' or 'lowest'
+    resolution-strategy: "highest"
+
+    # The version of Python to set UV_PYTHON to
+    python-version: ""
+
+    # Use uv venv to activate a venv ready to be used by later steps
+    activate-environment: "false"
+
+    # The directory to execute all commands in and look for files such as pyproject.toml
+    working-directory: ""
+
+    # The checksum of the uv version to install
+    checksum: ""
+
+    # Used to increase the rate limit when retrieving versions and downloading uv
+    github-token: ${{ github.token }}
+
+    # Enable uploading of the uv cache: true, false, or auto (enabled on GitHub-hosted runners, disabled on self-hosted runners)
+    enable-cache: "auto"
+
+    # Glob pattern to match files relative to the repository root to control the cache
+    cache-dependency-glob: |
+      **/*requirements*.txt
+      **/*requirements*.in
+      **/*constraints*.txt
+      **/*constraints*.in
+      **/pyproject.toml
+      **/uv.lock
+      **/*.py.lock
+
+    # Whether to restore the cache if found
+    restore-cache: "true"
+
+    # Whether to save the cache after the run
+    save-cache: "true"
+
+    # Suffix for the cache key
+    cache-suffix: ""
+
+    # Local path to store the cache (default: "" - uses system temp directory)
+    cache-local-path: ""
+
+    # Prune cache before saving
+    prune-cache: "true"
+
+    # Upload managed Python installations to the GitHub Actions cache
+    cache-python: "false"
+
+    # Ignore when nothing is found to cache
+    ignore-nothing-to-cache: "false"
+
+    # Ignore when the working directory is empty
+    ignore-empty-workdir: "false"
+
+    # Custom path to set UV_TOOL_DIR to
+    tool-dir: ""
+
+    # Custom path to set UV_TOOL_BIN_DIR to
+    tool-bin-dir: ""
+
+    # URL to the manifest file containing available versions and download URLs
+    manifest-file: ""
+
+    # Add problem matchers
+    add-problem-matchers: "true"
 ```
 
-### Install a specific version
+### Outputs
 
-```yaml
-- name: Install a specific version of uv
-  uses: astral-sh/setup-uv@v5
-  with:
-    version: "0.4.4"
-```
-
-### Install a version by supplying a semver range
-
-You can specify a [semver range](https://github.com/npm/node-semver?tab=readme-ov-file#ranges)
-to install the latest version that satisfies the range.
-
-```yaml
-- name: Install a semver range of uv
-  uses: astral-sh/setup-uv@v5
-  with:
-    version: ">=0.4.0"
-```
-
-```yaml
-- name: Pinning a minor version of uv
-  uses: astral-sh/setup-uv@v5
-  with:
-    version: "0.4.x"
-```
-
-### Install a required-version
-
-You can specify a [required-version](https://docs.astral.sh/uv/reference/settings/#required-version)
-in either a `uv.toml` or `pyproject.toml` file:
-
-```yaml
-- name: Install required-version defined in uv.toml
-  uses: astral-sh/setup-uv@v5
-  with:
-    uv-file: "path/to/uv.toml"
-```
-
-```yaml
-- name: Install required-version defined in pyproject.toml
-  uses: astral-sh/setup-uv@v5
-  with:
-    pyproject-file: "path/to/pyproject.toml"
-```
+- `uv-version`: The installed uv version. Useful when using latest.
+- `uv-path`: The path to the installed uv binary.
+- `uvx-path`: The path to the installed uvx binary.
+- `cache-hit`: A boolean value to indicate a cache entry was found.
+- `venv`: Path to the activated venv if activate-environment is true.
 
 ### Python version
 
-You can use the input `python-version` to
-
-- set the environment variable `UV_PYTHON` for the rest of your workflow
-- create a new virtual environment with the specified python version
-- activate the virtual environment for the rest of your workflow
+You can use the input `python-version` to set the environment variable `UV_PYTHON` for the rest of your workflow
 
 This will override any python version specifications in `pyproject.toml` and `.python-version`
 
 ```yaml
 - name: Install the latest version of uv and set the python version to 3.13t
-  uses: astral-sh/setup-uv@v5
+  uses: astral-sh/setup-uv@v7
   with:
     python-version: 3.13t
 - run: uv pip install --python=3.13t pip
 ```
 
-You can combine this with a matrix to test multiple python versions:
+You can combine this with a matrix to test multiple Python versions:
 
 ```yaml
 jobs:
@@ -127,244 +148,40 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Install the latest version of uv and set the python version
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v7
         with:
           python-version: ${{ matrix.python-version }}
       - name: Test with python ${{ matrix.python-version }}
         run: uv run --frozen pytest
 ```
 
-### Validate checksum
+### Working directory
 
-You can specify a checksum to validate the downloaded executable. Checksums up to the default version
-are automatically verified by this action. The sha256 hashes can be found on the
-[releases page](https://github.com/astral-sh/uv/releases) of the uv repo.
+You can set the working directory with the `working-directory` input.
+This controls where we look for `pyproject.toml`, `uv.toml` and `.python-version` files
+which are used to determine the version of uv and python to install.
+
+It also controls where [the venv gets created](#activate-environment).
 
 ```yaml
-- name: Install a specific version and validate the checksum
-  uses: astral-sh/setup-uv@v5
+- name: Install uv based on the config files in the working-directory
+  uses: astral-sh/setup-uv@v7
   with:
-    version: "0.3.1"
-    checksum: "e11b01402ab645392c7ad6044db63d37e4fd1e745e015306993b07695ea5f9f8"
+    working-directory: my/subproject/dir
 ```
 
-### Enable caching
+## Advanced Configuration
 
-If you enable caching, the [uv cache](https://docs.astral.sh/uv/concepts/cache/) will be uploaded to
-the GitHub Actions cache. This can speed up runs that reuse the cache by several minutes.
-Caching is enabled by default on GitHub-hosted runners.
+For more advanced configuration options, see our detailed documentation:
 
-> [!TIP]
->
-> On self-hosted runners this is usually not needed since the cache generated by uv on the runner's
-> filesystem is not removed after a run. For more details see [Local cache path](#local-cache-path).
-
-You can optionally define a custom cache key suffix.
-
-```yaml
-- name: Enable caching and define a custom cache key suffix
-  id: setup-uv
-  uses: astral-sh/setup-uv@v5
-  with:
-    enable-cache: true
-    cache-suffix: "optional-suffix"
-```
-
-When the cache was successfully restored, the output `cache-hit` will be set to `true` and you can
-use it in subsequent steps. For example, to use the cache in the above case:
-
-```yaml
-- name: Do something if the cache was restored
-  if: steps.setup-uv.outputs.cache-hit == 'true'
-  run: echo "Cache was restored"
-```
-
-#### Cache dependency glob
-
-If you want to control when the GitHub Actions cache is invalidated, specify a glob pattern with the
-`cache-dependency-glob` input. The GitHub Actions cache will be invalidated if any file matching the glob pattern
-changes. If you use relative paths, they are relative to the repository root.
-
-> [!NOTE]
->
-> The default is
-> ```yaml
-> cache-dependency-glob: |
->   **/requirements*.txt
->   **/uv.lock
-> ```
-
-```yaml
-- name: Define a cache dependency glob
-  uses: astral-sh/setup-uv@v5
-  with:
-    enable-cache: true
-    cache-dependency-glob: "**/pyproject.toml"
-```
-
-```yaml
-- name: Define a list of cache dependency globs
-  uses: astral-sh/setup-uv@v5
-  with:
-    enable-cache: true
-    cache-dependency-glob: |
-      **/requirements*.txt
-      **/pyproject.toml
-```
-
-```yaml
-- name: Define an absolute cache dependency glob
-  uses: astral-sh/setup-uv@v5
-  with:
-    enable-cache: true
-    cache-dependency-glob: "/tmp/my-folder/requirements*.txt"
-```
-
-```yaml
-- name: Never invalidate the cache
-  uses: astral-sh/setup-uv@v5
-  with:
-    enable-cache: true
-    cache-dependency-glob: ""
-```
-
-### Local cache path
-
-This action controls where uv stores its cache on the runner's filesystem by setting `UV_CACHE_DIR`.
-It defaults to `setup-uv-cache` in the `TMP` dir, `D:\a\_temp\uv-tool-dir` on Windows and
-`/tmp/setup-uv-cache` on Linux/macOS. You can change the default by specifying the path with the
-`cache-local-path` input.
-
-```yaml
-- name: Define a custom uv cache path
-  uses: astral-sh/setup-uv@v5
-  with:
-    cache-local-path: "/path/to/cache"
-```
-
-### Disable cache pruning
-
-By default, the uv cache is pruned after every run, removing pre-built wheels, but retaining any
-wheels that were built from source. On GitHub-hosted runners, it's typically faster to omit those
-pre-built wheels from the cache (and instead re-download them from the registry on each run).
-However, on self-hosted or local runners, preserving the cache may be more efficient. See
-the [documentation](https://docs.astral.sh/uv/concepts/cache/#caching-in-continuous-integration) for
-more information.
-
-If you want to persist the entire cache across runs, disable cache pruning with the `prune-cache`
-input.
-
-```yaml
-- name: Don't prune the cache before saving it
-  uses: astral-sh/setup-uv@v5
-  with:
-    enable-cache: true
-    prune-cache: false
-```
-
-### Ignore nothing to cache
-
-By default, the action will fail if caching is enabled but there is nothing to upload (the uv cache directory does not exist).
-If you want to ignore this, set the `ignore-nothing-to-cache` input to `true`.
-
-```yaml
-- name: Ignore nothing to cache
-  uses: astral-sh/setup-uv@v5
-  with:
-    enable-cache: true
-    ignore-nothing-to-cache: true
-```
-
-### Ignore empty workdir
-
-By default, the action will warn if the workdir is empty, because this is usually the case when
-`actions/checkout` is configured to run after `setup-uv`, which is not supported.
-
-If you want to ignore this, set the `ignore-empty-workdir` input to `true`.
-
-```yaml
-- name: Ignore empty workdir
-  uses: astral-sh/setup-uv@v5
-  with:
-    ignore-empty-workdir: true
-```
-
-### GitHub authentication token
-
-This action uses the GitHub API to fetch the uv release artifacts. To avoid hitting the GitHub API
-rate limit too quickly, an authentication token can be provided via the `github-token` input. By
-default, the `GITHUB_TOKEN` secret is used, which is automatically provided by GitHub Actions.
-
-If the default
-[permissions for the GitHub token](https://docs.github.com/en/actions/security-for-github-actions/security-guides/automatic-token-authentication#permissions-for-the-github_token)
-are not sufficient, you can provide a custom GitHub token with the necessary permissions.
-
-```yaml
-- name: Install the latest version of uv with a custom GitHub token
-  uses: astral-sh/setup-uv@v5
-  with:
-    github-token: ${{ secrets.CUSTOM_GITHUB_TOKEN }}
-```
-
-### UV_TOOL_DIR
-
-On Windows `UV_TOOL_DIR` is set to `uv-tool-dir` in the `TMP` dir (e.g. `D:\a\_temp\uv-tool-dir`).
-On GitHub hosted runners this is on the much faster `D:` drive.
-
-On all other platforms the tool environments are placed in the
-[default location](https://docs.astral.sh/uv/concepts/tools/#tools-directory).
-
-If you want to change this behaviour (especially on self-hosted runners) you can use the `tool-dir`
-input:
-
-```yaml
-- name: Install the latest version of uv with a custom tool dir
-  uses: astral-sh/setup-uv@v5
-  with:
-    tool-dir: "/path/to/tool/dir"
-```
-
-### UV_TOOL_BIN_DIR
-
-On Windows `UV_TOOL_BIN_DIR` is set to `uv-tool-bin-dir` in the `TMP` dir (e.g.
-`D:\a\_temp\uv-tool-bin-dir`). On GitHub hosted runners this is on the much faster `D:` drive. This
-path is also automatically added to the PATH.
-
-On all other platforms the tool binaries get installed to the
-[default location](https://docs.astral.sh/uv/concepts/tools/#the-bin-directory).
-
-If you want to change this behaviour (especially on self-hosted runners) you can use the
-`tool-bin-dir` input:
-
-```yaml
-- name: Install the latest version of uv with a custom tool bin dir
-  uses: astral-sh/setup-uv@v5
-  with:
-    tool-bin-dir: "/path/to/tool-bin/dir"
-```
-
-### Tilde Expansion
-
-This action supports expanding the `~` character to the user's home directory for the following inputs:
-
-- `cache-local-path`
-- `tool-dir`
-- `tool-bin-dir`
-- `cache-dependency-glob`
-
-```yaml
-- name: Expand the tilde character
-  uses: astral-sh/setup-uv@v5
-  with:
-    cache-local-path: "~/path/to/cache"
-    tool-dir: "~/path/to/tool/dir"
-    tool-bin-dir: "~/path/to/tool-bin/dir"
-    cache-dependency-glob: "~/my-cache-buster"
-```
+- **[Advanced Version Configuration](docs/advanced-version-configuration.md)** - Resolution strategies and version files
+- **[Caching](docs/caching.md)** - Complete guide to caching configuration
+- **[Environment and Tools](docs/environment-and-tools.md)** - Environment activation, tool directories, authentication, and environment variables
+- **[Customization](docs/customization.md)** - Checksum validation, custom manifests, and problem matchers
 
 ## How it works
 
@@ -373,7 +190,7 @@ This action downloads uv from the uv repo's official
 [GitHub Actions Toolkit](https://github.com/actions/toolkit) to cache it as a tool to speed up
 consecutive runs on self-hosted runners.
 
-The installed version of uv is then added to the runner PATH, enabling subsequent steps to invoke it
+The installed version of uv is then added to the runner PATH, enabling later steps to invoke it
 by name (`uv`).
 
 ## FAQ
@@ -391,7 +208,7 @@ For example:
 - name: Checkout the repository
   uses: actions/checkout@main
 - name: Install the latest version of uv
-  uses: astral-sh/setup-uv@v5
+  uses: astral-sh/setup-uv@v7
   with:
     enable-cache: true
 - name: Test
@@ -403,7 +220,7 @@ To install a specific version of Python, use
 
 ```yaml
 - name: Install the latest version of uv
-  uses: astral-sh/setup-uv@v5
+  uses: astral-sh/setup-uv@v7
   with:
     enable-cache: true
 - name: Install Python 3.12
@@ -422,7 +239,7 @@ output:
   uses: actions/checkout@main
 - name: Install the default version of uv
   id: setup-uv
-  uses: astral-sh/setup-uv@v5
+  uses: astral-sh/setup-uv@v7
 - name: Print the installed version
   run: echo "Installed uv version is ${{ steps.setup-uv.outputs.uv-version }}"
 ```
@@ -431,14 +248,13 @@ output:
 
 **Yes!**
 
-The cache key gets computed by using the [cache-dependency-glob](#cache-dependency-glob).
+The cache key gets computed by using the cache-dependency-glob (see [Caching documentation](docs/caching.md)).
 
-If you
-have jobs which use the same dependency definitions from `requirements.txt` or
+If you have jobs which use the same dependency definitions from `requirements.txt` or
 `pyproject.toml` but different
 [resolution strategies](https://docs.astral.sh/uv/concepts/resolution/#resolution-strategy),
 each job will have different dependencies or dependency versions.
-But if you do not add the resolution strategy as a [cache-suffix](#enable-caching),
+But if you do not add the resolution strategy as a cache-suffix (see [Caching documentation](docs/caching.md)),
 they will have the same cache key.
 
 This means the first job which starts uploading its cache will win and all other job will fail
@@ -448,18 +264,18 @@ because they try to upload with the same cache key.
 You might see errors like
 `Failed to save: Failed to CreateCacheEntry: Received non-retryable error: Failed request: (409) Conflict: cache entry with the same key, version, and scope already exists`
 
-### Why do I see warnings like `Cache not found for keys`
+### Why do I see warnings like `No GitHub Actions cache found for key`
 
 When a workflow runs for the first time on a branch and has a new cache key, because the
-[cache-dependency-glob](#cache-dependency-glob) found changed files (changed dependencies),
-the cache will not be found and the warning `Cache not found for keys` will be printed.
+cache-dependency-glob (see [Caching documentation](docs/caching.md)) found changed files (changed dependencies),
+the cache will not be found and the warning `No GitHub Actions cache found for key` will be printed.
 
 While this might be irritating at first, it is expected behaviour and the cache will be created
 and reused in later workflows.
 
 The reason for the warning is, that we have to way to know if this is the first run of a new
-cache key or the user accidentally misconfigured the [cache-dependency-glob](#cache-dependency-glob)
-or [cache-suffix](#enable-caching) and the cache never gets used.
+cache key or the user accidentally misconfigured the cache-dependency-glob
+or cache-suffix (see [Caching documentation](docs/caching.md)) and the cache never gets used.
 
 ### Do I have to run `actions/checkout` before or after `setup-uv`?
 
@@ -468,6 +284,28 @@ Some workflows need uv but do not need to access the repository content.
 But **if** you need to access the repository content, you have run `actions/checkout` before running `setup-uv`.
 Running `actions/checkout` after `setup-uv` **is not supported**.
 
+### Does `setup-uv` also install my project or its dependencies automatically?
+
+No, `setup-uv` alone wont install any libraries from your `pyproject.toml` or `requirements.txt`, it only sets up `uv`.
+You should run `uv sync` or `uv pip install .` separately, or use `uv run ...` to ensure necessary dependencies are installed.
+
+### Why is a changed cache not detected and not the full cache uploaded?
+
+When `setup-uv` starts it has to know whether it is better to download an existing cache
+or start fresh and download every dependency again.
+It does this by using a combination of hashes calculated on the contents of e.g. `uv.lock`.
+
+By calculating these hashes and combining them in a key `setup-uv` can check
+if an uploaded cache exists for this key.
+If yes (e.g. contents of `uv.lock` did not change since last run) the dependencies in the cache
+are up to date and the cache will be downloaded and used.
+
+Details on determining which files will lead to different caches can be read in the
+[Caching documentation](docs/caching.md).
+
+Some dependencies will never be uploaded to the cache and will be downloaded again on each run
+as described in the [Caching documentation](docs/caching.md).
+
 ## Acknowledgements
 
 `setup-uv` was initially written and published by [Kevin Stillhammer](https://github.com/eifinger)

__tests__/download/checksum/checksum.test.ts

@@ -1,4 +1,4 @@
-import { expect, test, it } from "@jest/globals";
+import { expect, it, test } from "@jest/globals";
 import {
   isknownVersion,
   validateChecksum,
@@ -22,16 +22,16 @@ type KnownVersionFixture = { version: string; known: boolean };
 
 it.each<KnownVersionFixture>([
   {
-    version: "0.3.0",
     known: true,
+    version: "0.3.0",
   },
   {
-    version: "0.0.15",
     known: false,
+    version: "0.0.15",
   },
-])(
-  "isknownVersion should return $known for version $version",
-  ({ version, known }) => {
-    expect(isknownVersion(version)).toBe(known);
-  },
-);
+])("isknownVersion should return $known for version $version", ({
+  version,
+  known,
+}) => {
+  expect(isknownVersion(version)).toBe(known);
+});

__tests__/download/custom-manifest.json

@@ -0,0 +1,9 @@
+[
+  {
+    "arch": "x86_64",
+    "artifactName": "uv-x86_64-unknown-linux-gnu.tar.gz",
+    "downloadUrl": "https://release.pyx.dev/0.7.12-alpha.1/uv-x86_64-unknown-linux-gnu.tar.gz",
+    "platform": "unknown-linux-gnu",
+    "version": "0.7.12-alpha.1"
+  }
+]

__tests__/fixtures/.tool-versions

@@ -0,0 +1 @@
+uv 0.5.15

__tests__/fixtures/cache-dir-defined-project/pyproject.toml

@@ -0,0 +1,16 @@
+[project]
+name = "uv-project"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+    "ruff>=0.6.2",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.uv]
+cache-dir = "/tmp/pyproject-toml-defined-cache-path"

__tests__/fixtures/cache-dir-defined-project/src/uv_project/__init__.py

@@ -0,0 +1,2 @@
+def hello() -> str:
+    return "Hello from uv-project!"

__tests__/fixtures/cache-dir-defined-project/uv.lock

@@ -0,0 +1,38 @@
+version = 1
+requires-python = ">=3.12"
+
+[[package]]
+name = "ruff"
+version = "0.6.2"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/23/f4/279d044f66b79261fd37df76bf72b64471afab5d3b7906a01499c4451910/ruff-0.6.2.tar.gz", hash = "sha256:239ee6beb9e91feb8e0ec384204a763f36cb53fb895a1a364618c6abb076b3be", size = 2460281 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/72/4b/47dd7a69287afb4069fa42c198e899463605460a58120196711bfcf0446b/ruff-0.6.2-py3-none-linux_armv6l.whl", hash = "sha256:5c8cbc6252deb3ea840ad6a20b0f8583caab0c5ef4f9cca21adc5a92b8f79f3c", size = 9695871 },
+    { url = "https://files.pythonhosted.org/packages/ae/c3/8aac62ac4638c14a740ee76a755a925f2d0d04580ab790a9887accb729f6/ruff-0.6.2-py3-none-macosx_10_12_x86_64.whl", hash = "sha256:17002fe241e76544448a8e1e6118abecbe8cd10cf68fde635dad480dba594570", size = 9459354 },
+    { url = "https://files.pythonhosted.org/packages/2f/cf/77fbd8d4617b9b9c503f9bffb8552c4e3ea1a58dc36975e7a9104ffb0f85/ruff-0.6.2-py3-none-macosx_11_0_arm64.whl", hash = "sha256:3dbeac76ed13456f8158b8f4fe087bf87882e645c8e8b606dd17b0b66c2c1158", size = 9163871 },
+    { url = "https://files.pythonhosted.org/packages/05/1c/765192bab32b79efbb498b06f0b9dcb3629112b53b8777ae1d19b8209e09/ruff-0.6.2-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:094600ee88cda325988d3f54e3588c46de5c18dae09d683ace278b11f9d4d534", size = 10096250 },
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+    { url = "https://files.pythonhosted.org/packages/79/a9/0f2f21fe15ba537c46598f96aa9ae4a3d4b9ec64926664617ca6a8c772f4/ruff-0.6.2-py3-none-win32.whl", hash = "sha256:279d5f7d86696df5f9549b56b9b6a7f6c72961b619022b5b7999b15db392a4da", size = 7961901 },
+    { url = "https://files.pythonhosted.org/packages/b0/80/fff12ffe11853d9f4ea3e5221e6dd2e93640a161c05c9579833e09ad40a7/ruff-0.6.2-py3-none-win_amd64.whl", hash = "sha256:d9f3469c7dd43cd22eb1c3fc16926fb8258d50cb1b216658a07be95dd117b0f2", size = 8783320 },
+    { url = "https://files.pythonhosted.org/packages/56/91/577cdd64cce5e74d3f8b5ecb93f29566def569c741eb008aed4f331ef821/ruff-0.6.2-py3-none-win_arm64.whl", hash = "sha256:f28fcd2cd0e02bdf739297516d5643a945cc7caf09bd9bcb4d932540a5ea4fa9", size = 8225886 },
+]
+
+[[package]]
+name = "uv-project"
+version = "0.1.0"
+source = { editable = "." }
+dependencies = [
+    { name = "ruff" },
+]
+
+[package.metadata]
+requires-dist = [{ name = "ruff" }]

__tests__/fixtures/uv-in-requirements-hash-txt-project/hello_world.py

@@ -0,0 +1 @@
+print("Hello world")

__tests__/fixtures/uv-in-requirements-hash-txt-project/requirements.txt

@@ -0,0 +1,33 @@
+# This file was autogenerated by uv via the following command:
+#    uv pip compile --generate-hashes - -o ex-requirements.txt
+click==8.2.1 \
+    --hash=sha256:27c491cc05d968d271d5a1db13e3b5a184636d9d930f148c50b038f0d0646202 \
+    --hash=sha256:61a3265b914e850b85317d0b3109c7f8cd35a670f963866005d6ef1d5175a12b
+    # via uvicorn
+h11==0.16.0 \
+    --hash=sha256:4e35b956cf45792e4caa5885e69fba00bdbc6ffafbfa020300e549b208ee5ff1 \
+    --hash=sha256:63cf8bbe7522de3bf65932fda1d9c2772064ffb3dae62d55932da54b31cb6c86
+    # via uvicorn
+uv==0.8.3 \
+    --hash=sha256:1121ad1c9389b865d029385031d3fd7d90d343c92a2149a4d4aa20bf469cb27f \
+    --hash=sha256:17bcdb0615e37cc5f985f7d7546f755ac6343c1dc8bbe876c892437f14f8f904 \
+    --hash=sha256:2ccaae4c749126c99f6404d67a0ae1eae29cbafb05603d09094a775061fdf4e5 \
+    --hash=sha256:2e311c029bff2ca07c6ddf877ccc5935cabb78e09b94b53a849542665b6a6fa1 \
+    --hash=sha256:391c97577048a40fd8c85b370055df6420f26e81df7fa906f0e0ce1aa2af3527 \
+    --hash=sha256:3f904f574dc2d7aa1d96ddf2483480ecd121dc9d060108cadd8bff100b754b64 \
+    --hash=sha256:526f2c3bd6f311ce31f6f7b6b7d818b191f41e76bed3aaab671b716220c02d8f \
+    --hash=sha256:5313ee776ad65731ffa8ac585246f987d3a2bf72e6153c12add1fff22ad6e500 \
+    --hash=sha256:5843cc43bafad05cc710d8e31bd347ee37202462a63d32c30746e9df48cfbda2 \
+    --hash=sha256:76de331a07e5ae9b6490e70a9439a072b91b3167a5684510af10c2752c4ece9a \
+    --hash=sha256:8486f7576d15cc73509f93f47b3190f44701ea36839906369301b58c8604d5db \
+    --hash=sha256:8b16f1bddfdf8f7470924ab34a7b55e4c372d5340c7c1e47e7fc84a743dc541f \
+    --hash=sha256:966ec7d7f57521fef0fee685d71e183c9cafb358ddcfe27519dfeaf40550f247 \
+    --hash=sha256:989898caeb6e972979543b57547d1c28ab8af81ff8fc15921fd354c17d432749 \
+    --hash=sha256:9ce7981f4fbeecf93dc5cf0a5a7915e84956fd99ad3ac977c048fe0cfdb1a17e \
+    --hash=sha256:ad13453ab0a1dfa64a221aac8f52199efdcaa52c97134fffd7bcebed794a6f4b \
+    --hash=sha256:ae7efe91dcfc24126fa91e0fb69a1daf6c0e494a781ba192bb0cc62d7ab623ee \
+    --hash=sha256:daa6e0d657a94f20e962d4a03d833ef7af5c8e51b7c8a2d92ba6cf64a4c07ac1 \
+    --hash=sha256:f1eb7c896fc0d80ed534748aaf46697b6ebc8ce401f1c51666ce0b9923c3db9a
+uvicorn==0.35.0 \
+    --hash=sha256:197535216b25ff9b785e29a0b79199f55222193d47f820816e7da751e9bc8d4a \
+    --hash=sha256:bc662f087f7cf2ce11a1d7fd70b90c9f98ef2e2831556dd078d131b96cc94a01

__tests__/fixtures/uv-in-requirements-txt-project/hello_world.py

@@ -0,0 +1 @@
+print("Hello world")

__tests__/fixtures/uv-in-requirements-txt-project/requirements.txt

@@ -0,0 +1,2 @@
+uvicorn==0.35.0
+uv==0.6.17

__tests__/utils/inputs.test.ts

@@ -0,0 +1,86 @@
+jest.mock("@actions/core", () => {
+  return {
+    debug: jest.fn(),
+    getBooleanInput: jest.fn(
+      (name: string) => (mockInputs[name] ?? "") === "true",
+    ),
+    getInput: jest.fn((name: string) => mockInputs[name] ?? ""),
+  };
+});
+
+import {
+  afterEach,
+  beforeEach,
+  describe,
+  expect,
+  it,
+  jest,
+} from "@jest/globals";
+
+// Will be mutated per test before (re-)importing the module under test
+let mockInputs: Record<string, string> = {};
+const ORIGINAL_HOME = process.env.HOME;
+
+describe("cacheDependencyGlob", () => {
+  beforeEach(() => {
+    jest.resetModules();
+    mockInputs = {};
+    process.env.HOME = "/home/testuser";
+  });
+
+  afterEach(() => {
+    process.env.HOME = ORIGINAL_HOME;
+  });
+
+  it("returns empty string when input not provided", async () => {
+    mockInputs["working-directory"] = "/workspace";
+    const { cacheDependencyGlob } = await import("../../src/utils/inputs");
+    expect(cacheDependencyGlob).toBe("");
+  });
+
+  it("resolves a single relative path", async () => {
+    mockInputs["working-directory"] = "/workspace";
+    mockInputs["cache-dependency-glob"] = "requirements.txt";
+    const { cacheDependencyGlob } = await import("../../src/utils/inputs");
+    expect(cacheDependencyGlob).toBe("/workspace/requirements.txt");
+  });
+
+  it("strips leading ./ from relative path", async () => {
+    mockInputs["working-directory"] = "/workspace";
+    mockInputs["cache-dependency-glob"] = "./uv.lock";
+    const { cacheDependencyGlob } = await import("../../src/utils/inputs");
+    expect(cacheDependencyGlob).toBe("/workspace/uv.lock");
+  });
+
+  it("handles multiple lines, trimming whitespace, tilde expansion and absolute paths", async () => {
+    mockInputs["working-directory"] = "/workspace";
+    mockInputs["cache-dependency-glob"] =
+      "  ~/.cache/file1\n ./rel/file2  \nfile3.txt";
+    const { cacheDependencyGlob } = await import("../../src/utils/inputs");
+    expect(cacheDependencyGlob).toBe(
+      [
+        "/home/testuser/.cache/file1", // expanded tilde, absolute path unchanged
+        "/workspace/rel/file2", // ./ stripped and resolved
+        "/workspace/file3.txt", // relative path resolved
+      ].join("\n"),
+    );
+  });
+
+  it("keeps absolute path unchanged in multiline input", async () => {
+    mockInputs["working-directory"] = "/workspace";
+    mockInputs["cache-dependency-glob"] = "/abs/path.lock\nrelative.lock";
+    const { cacheDependencyGlob } = await import("../../src/utils/inputs");
+    expect(cacheDependencyGlob).toBe(
+      ["/abs/path.lock", "/workspace/relative.lock"].join("\n"),
+    );
+  });
+
+  it("handles exclusions in relative paths correct", async () => {
+    mockInputs["working-directory"] = "/workspace";
+    mockInputs["cache-dependency-glob"] = "!/abs/path.lock\n!relative.lock";
+    const { cacheDependencyGlob } = await import("../../src/utils/inputs");
+    expect(cacheDependencyGlob).toBe(
+      ["!/abs/path.lock", "!/workspace/relative.lock"].join("\n"),
+    );
+  });
+});

__tests__/version/requirements-file.test.ts

@@ -0,0 +1,9 @@
+import { expect, test } from "@jest/globals";
+import { getUvVersionFromFile } from "../../src/version/resolve";
+
+test("ignores dependencies starting with uv", async () => {
+  const parsedVersion = getUvVersionFromFile(
+    "__tests__/fixtures/uv-in-requirements-txt-project/requirements.txt",
+  );
+  expect(parsedVersion).toBe("0.6.17");
+});

__tests__/version/requirements-hashes-file.test.ts

@@ -0,0 +1,9 @@
+import { expect, test } from "@jest/globals";
+import { getUvVersionFromFile } from "../../src/version/resolve";
+
+test("ignores dependencies starting with uv", async () => {
+  const parsedVersion = getUvVersionFromFile(
+    "__tests__/fixtures/uv-in-requirements-hash-txt-project/requirements.txt",
+  );
+  expect(parsedVersion).toBe("0.8.3");
+});

__tests__/version/tool-versions-file.test.ts

@@ -0,0 +1,115 @@
+jest.mock("node:fs");
+jest.mock("@actions/core", () => ({
+  warning: jest.fn(),
+}));
+
+import fs from "node:fs";
+import * as core from "@actions/core";
+import { beforeEach, describe, expect, it, jest } from "@jest/globals";
+import { getUvVersionFromToolVersions } from "../../src/version/tool-versions-file";
+
+const mockedFs = fs as jest.Mocked<typeof fs>;
+const mockedCore = core as jest.Mocked<typeof core>;
+
+describe("getUvVersionFromToolVersions", () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it("should return undefined for non-.tool-versions files", () => {
+    const result = getUvVersionFromToolVersions("package.json");
+    expect(result).toBeUndefined();
+    expect(mockedFs.readFileSync).not.toHaveBeenCalled();
+  });
+
+  it("should return version for valid uv entry", () => {
+    const fileContent = "python 3.11.0\nuv 0.1.0\nnodejs 18.0.0";
+    mockedFs.readFileSync.mockReturnValue(fileContent);
+
+    const result = getUvVersionFromToolVersions(".tool-versions");
+
+    expect(result).toBe("0.1.0");
+    expect(mockedFs.readFileSync).toHaveBeenCalledWith(
+      ".tool-versions",
+      "utf8",
+    );
+  });
+
+  it("should return version for uv entry with v prefix", () => {
+    const fileContent = "uv v0.2.0";
+    mockedFs.readFileSync.mockReturnValue(fileContent);
+
+    const result = getUvVersionFromToolVersions(".tool-versions");
+
+    expect(result).toBe("0.2.0");
+  });
+
+  it("should handle whitespace around uv entry", () => {
+    const fileContent = "  uv   0.3.0  ";
+    mockedFs.readFileSync.mockReturnValue(fileContent);
+
+    const result = getUvVersionFromToolVersions(".tool-versions");
+
+    expect(result).toBe("0.3.0");
+  });
+
+  it("should skip commented lines", () => {
+    const fileContent = "# uv 0.1.0\npython 3.11.0\nuv 0.2.0";
+    mockedFs.readFileSync.mockReturnValue(fileContent);
+
+    const result = getUvVersionFromToolVersions(".tool-versions");
+
+    expect(result).toBe("0.2.0");
+  });
+
+  it("should return first matching uv version", () => {
+    const fileContent = "uv 0.1.0\npython 3.11.0\nuv 0.2.0";
+    mockedFs.readFileSync.mockReturnValue(fileContent);
+
+    const result = getUvVersionFromToolVersions(".tool-versions");
+
+    expect(result).toBe("0.1.0");
+  });
+
+  it("should return undefined when no uv entry found", () => {
+    const fileContent = "python 3.11.0\nnodejs 18.0.0";
+    mockedFs.readFileSync.mockReturnValue(fileContent);
+
+    const result = getUvVersionFromToolVersions(".tool-versions");
+
+    expect(result).toBeUndefined();
+  });
+
+  it("should return undefined for empty file", () => {
+    mockedFs.readFileSync.mockReturnValue("");
+
+    const result = getUvVersionFromToolVersions(".tool-versions");
+
+    expect(result).toBeUndefined();
+  });
+
+  it("should warn and return undefined for ref syntax", () => {
+    const fileContent = "uv ref:main";
+    mockedFs.readFileSync.mockReturnValue(fileContent);
+
+    const result = getUvVersionFromToolVersions(".tool-versions");
+
+    expect(result).toBeUndefined();
+    expect(mockedCore.warning).toHaveBeenCalledWith(
+      "The ref syntax of .tool-versions is not supported. Please use a released version instead.",
+    );
+  });
+
+  it("should handle file path with .tool-versions extension", () => {
+    const fileContent = "uv 0.1.0";
+    mockedFs.readFileSync.mockReturnValue(fileContent);
+
+    const result = getUvVersionFromToolVersions("path/to/.tool-versions");
+
+    expect(result).toBe("0.1.0");
+    expect(mockedFs.readFileSync).toHaveBeenCalledWith(
+      "path/to/.tool-versions",
+      "utf8",
+    );
+  });
+});

action.yml

@@ -6,15 +6,18 @@ inputs:
   version:
     description: "The version of uv to install e.g., `0.5.0` Defaults to the version in pyproject.toml or 'latest'."
     default: ""
-  pyproject-file:
-    description: "Path to a pyproject.toml"
-    default: ""
-  uv-file:
-    description: "Path to a uv.toml"
+  version-file:
+    description: "Path to a file containing the version of uv to install. Defaults to searching for uv.toml and if not found pyproject.toml."
     default: ""
   python-version:
     description: "The version of Python to set UV_PYTHON to"
     required: false
+  activate-environment:
+    description: "Use uv venv to activate a venv ready to be used by later steps. "
+    default: "false"
+  working-directory:
+    description: "The directory to execute all commands in and look for files such as pyproject.toml"
+    default: ${{ github.workspace }}
   checksum:
     description: "The checksum of the uv version to install"
     required: false
@@ -28,11 +31,22 @@ inputs:
     default: "auto"
   cache-dependency-glob:
     description:
-      "Glob pattern to match files relative to the repository root to control
+      "Glob pattern to match files relative to the working directory to control
       the cache."
     default: |
+      **/*requirements*.txt
+      **/*requirements*.in
+      **/*constraints*.txt
+      **/*constraints*.in
+      **/pyproject.toml
       **/uv.lock
-      **/requirements*.txt
+      **/*.py.lock
+  restore-cache:
+    description: "Whether to restore the cache if found."
+    default: "true"
+  save-cache:
+    description: "Whether to save the cache after the run."
+    default: "true"
   cache-suffix:
     description: "Suffix for the cache key"
     required: false
@@ -42,6 +56,9 @@ inputs:
   prune-cache:
     description: "Prune cache before saving."
     default: "true"
+  cache-python:
+    description: "Upload managed Python installations to the Github Actions cache."
+    default: "false"
   ignore-nothing-to-cache:
     description: "Ignore when nothing is found to cache."
     default: "false"
@@ -54,13 +71,30 @@ inputs:
   tool-bin-dir:
     description: "Custom path to set UV_TOOL_BIN_DIR to."
     required: false
+  manifest-file:
+    description: "URL to the manifest file containing available versions and download URLs."
+    required: false
+  add-problem-matchers:
+    description: "Add problem matchers."
+    default: "true"
+  resolution-strategy:
+    description: "Resolution strategy to use when resolving version ranges. 'highest' uses the latest compatible version, 'lowest' uses the oldest compatible version."
+    default: "highest"
 outputs:
   uv-version:
     description: "The installed uv version. Useful when using latest."
+  uv-path:
+    description: "The path to the installed uv binary."
+  uvx-path:
+    description: "The path to the installed uvx binary."
   cache-hit:
     description: "A boolean value to indicate a cache entry was found"
+  cache-key:
+    description: "The cache key used for storing/restoring the cache"
+  venv:
+    description: "Path to the activated venv if activate-environment is true"
 runs:
-  using: "node20"
+  using: "node24"
   main: "dist/setup/index.js"
   post: "dist/save-cache/index.js"
   post-if: success()

biome.json

@@ -1,20 +1,35 @@
 {
-  "$schema": "https://biomejs.dev/schemas/1.9.2/schema.json",
-  "vcs": {
-    "enabled": true,
-    "clientKind": "git",
-    "useIgnoreFile": false
+  "$schema": "https://biomejs.dev/schemas/2.3.7/schema.json",
+  "assist": {
+    "actions": {
+      "source": {
+        "organizeImports": "on",
+        "useSortedAttributes": "on",
+        "useSortedKeys": "on"
+      }
+    }
   },
   "files": {
     "ignoreUnknown": false,
-    "ignore": ["dist", "lib", "node_modules"]
+    "includes": [
+      "**",
+      "!**/dist",
+      "!**/lib",
+      "!**/node_modules",
+      "!**/package*.json",
+      "!**/known-checksums.*"
+    ],
+    "maxSize": 2097152
   },
   "formatter": {
     "enabled": true,
     "indentStyle": "space"
   },
-  "organizeImports": {
-    "enabled": true
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "double",
+      "trailingCommas": "all"
+    }
   },
   "linter": {
     "enabled": true,
@@ -22,10 +37,9 @@
       "recommended": true
     }
   },
-  "javascript": {
-    "formatter": {
-      "quoteStyle": "double",
-      "trailingCommas": "all"
-    }
+  "vcs": {
+    "clientKind": "git",
+    "enabled": true,
+    "useIgnoreFile": false
   }
 }

docs/advanced-version-configuration.md

@@ -0,0 +1,82 @@
+# Advanced Version Configuration
+
+This document covers advanced options for configuring which version of uv to install.
+
+## Install the latest version
+
+```yaml
+- name: Install the latest version of uv
+  uses: astral-sh/setup-uv@v7
+  with:
+    version: "latest"
+```
+
+## Install a specific version
+
+```yaml
+- name: Install a specific version of uv
+  uses: astral-sh/setup-uv@v7
+  with:
+    version: "0.4.4"
+```
+
+## Install a version by supplying a semver range or pep440 specifier
+
+You can specify a [semver range](https://github.com/npm/node-semver?tab=readme-ov-file#ranges)
+or [pep440 specifier](https://peps.python.org/pep-0440/#version-specifiers)
+to install the latest version that satisfies the range.
+
+```yaml
+- name: Install a semver range of uv
+  uses: astral-sh/setup-uv@v7
+  with:
+    version: ">=0.4.0"
+```
+
+```yaml
+- name: Pinning a minor version of uv
+  uses: astral-sh/setup-uv@v7
+  with:
+    version: "0.4.x"
+```
+
+```yaml
+- name: Install a pep440-specifier-satisfying version of uv
+  uses: astral-sh/setup-uv@v7
+  with:
+    version: ">=0.4.25,<0.5"
+```
+
+## Resolution strategy
+
+By default, when resolving version ranges, setup-uv will install the highest compatible version.
+You can change this behavior using the `resolution-strategy` input:
+
+```yaml
+- name: Install the lowest compatible version of uv
+  uses: astral-sh/setup-uv@v7
+  with:
+    version: ">=0.4.0"
+    resolution-strategy: "lowest"
+```
+
+The supported resolution strategies are:
+- `highest` (default): Install the latest version that satisfies the constraints
+- `lowest`: Install the oldest version that satisfies the constraints
+
+This can be useful for testing compatibility with older versions of uv, similar to uv's own `--resolution-strategy` option.
+
+## Install a version defined in a requirements or config file
+
+You can use the `version-file` input to specify a file that contains the version of uv to install.
+This can either be a `pyproject.toml` or `uv.toml` file which defines a `required-version` or
+uv defined as a dependency in `pyproject.toml` or `requirements.txt`.
+
+[asdf](https://asdf-vm.com/) `.tool-versions` is also supported, but without the `ref` syntax.
+
+```yaml
+- name: Install uv based on the version defined in pyproject.toml
+  uses: astral-sh/setup-uv@v7
+  with:
+    version-file: "pyproject.toml"
+```

docs/caching.md

@@ -0,0 +1,221 @@
+# Caching
+
+This document covers all caching-related configuration options for setup-uv.
+
+## Cache key
+
+The cache key is automatically generated based on:
+
+- **Architecture**: CPU architecture (e.g., `x86_64`, `aarch64`)
+- **Platform**: OS platform type (e.g., `unknown-linux-gnu`, `unknown-linux-musl`, `apple-darwin`,
+  `pc-windows-msvc`)
+- **OS version**: OS name and version (e.g., `ubuntu-22.04`, `macos-14`, `windows-2022`)
+- **Python version**: The Python version in use
+- **Cache options**: Whether pruning and Python caching are enabled
+- **Dependency hash**: Hash of files matching `cache-dependency-glob`
+- **Suffix**: Optional `cache-suffix` if provided
+
+Including the OS version ensures that caches are not shared between different OS versions,
+preventing binary incompatibility issues when runner images change.
+
+The computed cache key is available as the `cache-key` output:
+
+```yaml
+- name: Setup uv
+  id: setup-uv
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+- name: Print cache key
+  run: echo "Cache key: ${{ steps.setup-uv.outputs.cache-key }}"
+```
+
+## Enable caching
+
+> [!NOTE]
+> The cache is pruned before it is uploaded to the GitHub Actions cache. This can lead to
+> a small or empty cache. See [Disable cache pruning](#disable-cache-pruning) for more details.
+
+If you enable caching, the [uv cache](https://docs.astral.sh/uv/concepts/cache/) will be uploaded to
+the GitHub Actions cache. This can speed up runs that reuse the cache by several minutes.
+Caching is enabled by default on GitHub-hosted runners.
+
+> [!TIP]
+>
+> On self-hosted runners this is usually not needed since the cache generated by uv on the runner's
+> filesystem is not removed after a run. For more details see [Local cache path](#local-cache-path).
+
+You can optionally define a custom cache key suffix.
+
+```yaml
+- name: Enable caching and define a custom cache key suffix
+  id: setup-uv
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    cache-suffix: "optional-suffix"
+```
+
+When the cache was successfully restored, the output `cache-hit` will be set to `true` and you can
+use it in subsequent steps. For example, to use the cache in the above case:
+
+```yaml
+- name: Do something if the cache was restored
+  if: steps.setup-uv.outputs.cache-hit == 'true'
+  run: echo "Cache was restored"
+```
+
+## Cache dependency glob
+
+If you want to control when the GitHub Actions cache is invalidated, specify a glob pattern with the
+`cache-dependency-glob` input. The GitHub Actions cache will be invalidated if any file matching the glob pattern
+changes. If you use relative paths, they are relative to the working directory.
+
+> [!NOTE]
+>
+> You can look up supported patterns [here](https://github.com/actions/toolkit/tree/main/packages/glob#patterns)
+>
+> The default is
+> ```yaml
+> cache-dependency-glob: |
+>   **/*requirements*.txt
+>   **/*requirements*.in
+>   **/*constraints*.txt
+>   **/*constraints*.in
+>   **/pyproject.toml
+>   **/uv.lock
+>   **/*.py.lock
+> ```
+
+```yaml
+- name: Define a cache dependency glob
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    cache-dependency-glob: "**/pyproject.toml"
+```
+
+```yaml
+- name: Define a list of cache dependency globs
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    cache-dependency-glob: |
+      **/requirements*.txt
+      **/pyproject.toml
+```
+
+```yaml
+- name: Define an absolute cache dependency glob
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    cache-dependency-glob: "/tmp/my-folder/requirements*.txt"
+```
+
+```yaml
+- name: Never invalidate the cache
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    cache-dependency-glob: ""
+```
+
+## Restore cache
+
+Restoring an existing cache can be enabled or disabled with the `restore-cache` input.
+By default, the cache will be restored.
+
+```yaml
+- name: Don't restore an existing cache
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    restore-cache: false
+```
+
+## Save cache
+
+You can also disable saving the cache after the run with the `save-cache` input.
+This can be useful to save cache storage when you know you will not use the cache of the run again.
+By default, the cache will be saved.
+
+```yaml
+- name: Don't save the cache after the run
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    save-cache: false
+```
+
+## Local cache path
+
+If caching is enabled, this action controls where uv stores its cache on the runner's filesystem
+by setting `UV_CACHE_DIR`.
+
+It defaults to `setup-uv-cache` in the `TMP` dir, `D:\a\_temp\setup-uv-cache` on Windows and
+`/tmp/setup-uv-cache` on Linux/macOS. You can change the default by specifying the path with the
+`cache-local-path` input.
+
+> [!NOTE]
+> If the environment variable `UV_CACHE_DIR` is already set this action will not override it.
+> If you configured [cache-dir](https://docs.astral.sh/uv/reference/settings/#cache-dir) in your
+> config file then it is also respected and this action will not set `UV_CACHE_DIR`.
+
+> [!NOTE]
+> If caching is disabled, you can still use `cache-local-path` so this action sets `UV_CACHE_DIR`
+> to your desired path.
+
+```yaml
+- name: Define a custom uv cache path
+  uses: astral-sh/setup-uv@v7
+  with:
+    cache-local-path: "/path/to/cache"
+```
+
+## Disable cache pruning
+
+By default, the uv cache is pruned after every run, removing pre-built wheels, but retaining any
+wheels that were built from source. On GitHub-hosted runners, it's typically faster to omit those
+pre-built wheels from the cache (and instead re-download them from the registry on each run).
+However, on self-hosted or local runners, preserving the cache may be more efficient. See
+the [documentation](https://docs.astral.sh/uv/concepts/cache/#caching-in-continuous-integration) for
+more information.
+
+If you want to persist the entire cache across runs, disable cache pruning with the `prune-cache`
+input.
+
+```yaml
+- name: Don't prune the cache before saving it
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    prune-cache: false
+```
+
+## Cache Python installs
+
+By default, the Python install dir (`uv python dir` / `UV_PYTHON_INSTALL_DIR`) is not cached,
+for the same reason that the dependency cache is pruned.
+If you want to cache Python installs along with your dependencies, set the `cache-python` input to `true`.
+
+```yaml
+- name: Cache Python installs
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    cache-python: true
+```
+
+## Ignore nothing to cache
+
+By default, the action will fail if caching is enabled but there is nothing to upload (the uv cache directory does not exist).
+If you want to ignore this, set the `ignore-nothing-to-cache` input to `true`.
+
+```yaml
+- name: Ignore nothing to cache
+  uses: astral-sh/setup-uv@v7
+  with:
+    enable-cache: true
+    ignore-nothing-to-cache: true
+```

docs/customization.md

@@ -0,0 +1,70 @@
+# Customization
+
+This document covers advanced customization options including checksum validation, custom manifests, and problem matchers.
+
+## Validate checksum
+
+You can specify a checksum to validate the downloaded executable. Checksums up to the default version
+are automatically verified by this action. The sha256 hashes can be found on the
+[releases page](https://github.com/astral-sh/uv/releases) of the uv repo.
+
+```yaml
+- name: Install a specific version and validate the checksum
+  uses: astral-sh/setup-uv@v7
+  with:
+    version: "0.3.1"
+    checksum: "e11b01402ab645392c7ad6044db63d37e4fd1e745e015306993b07695ea5f9f8"
+```
+
+## Manifest file
+
+The `manifest-file` input allows you to specify a JSON manifest that lists available uv versions,
+architectures, and their download URLs. By default, this action uses the manifest file contained
+in this repository, which is automatically updated with each release of uv.
+
+The manifest file contains an array of objects, each describing a version,
+architecture, platform, and the corresponding download URL. For example:
+
+```json
+[
+  {
+    "version": "0.7.13",
+    "artifactName": "uv-aarch64-apple-darwin.tar.gz",
+    "arch": "aarch64",
+    "platform": "apple-darwin",
+    "downloadUrl": "https://github.com/astral-sh/uv/releases/download/0.7.13/uv-aarch64-apple-darwin.tar.gz"
+  },
+  ...
+]
+```
+
+You can supply a custom manifest file URL to define additional versions,
+architectures, or different download URLs.
+This is useful if you maintain your own uv builds or want to override the default sources.
+
+```yaml
+- name: Use a custom manifest file
+  uses: astral-sh/setup-uv@v7
+  with:
+    manifest-file: "https://example.com/my-custom-manifest.json"
+```
+
+> [!NOTE]
+> When you use a custom manifest file and do not set the `version` input, its default value is `latest`.
+> This means the action will install the latest version available in the custom manifest file.
+> This is different from the default behavior of installing the latest version from the official uv releases.
+
+## Add problem matchers
+
+This action automatically adds
+[problem matchers](https://github.com/actions/toolkit/blob/main/docs/problem-matchers.md)
+for python errors.
+
+You can disable this by setting the `add-problem-matchers` input to `false`.
+
+```yaml
+- name: Install the latest version of uv without problem matchers
+  uses: astral-sh/setup-uv@v7
+  with:
+    add-problem-matchers: false
+```

docs/environment-and-tools.md

@@ -0,0 +1,146 @@
+# Environment and Tools
+
+This document covers environment activation, tool directory configuration, and authentication options.
+
+## Activate environment
+
+You can set `activate-environment` to `true` to automatically activate a venv.
+This allows directly using it in later steps:
+
+```yaml
+- name: Install the latest version of uv and activate the environment
+  uses: astral-sh/setup-uv@v7
+  with:
+    activate-environment: true
+- run: uv pip install pip
+```
+
+> [!WARNING]
+>
+> Activating the environment adds your dependencies to the `PATH`, which could break some workflows.
+> For example, if you have a dependency which requires uv, e.g., `hatch`, activating the
+> environment will shadow the `uv` binary installed by this action and may result in a different uv
+> version being used.
+>
+> We do not recommend using this setting for most use-cases. Instead, use `uv run` to execute
+> commands in the environment.
+
+## GitHub authentication token
+
+This action uses the GitHub API to fetch the uv release artifacts. To avoid hitting the GitHub API
+rate limit too quickly, an authentication token can be provided via the `github-token` input. By
+default, the `GITHUB_TOKEN` secret is used, which is automatically provided by GitHub Actions.
+
+If the default
+[permissions for the GitHub token](https://docs.github.com/en/actions/security-for-github-actions/security-guides/automatic-token-authentication#permissions-for-the-github_token)
+are not sufficient, you can provide a custom GitHub token with the necessary permissions.
+
+```yaml
+- name: Install the latest version of uv with a custom GitHub token
+  uses: astral-sh/setup-uv@v7
+  with:
+    github-token: ${{ secrets.CUSTOM_GITHUB_TOKEN }}
+```
+
+## UV_TOOL_DIR
+
+On Windows `UV_TOOL_DIR` is set to `uv-tool-dir` in the `TMP` dir (e.g. `D:\a\_temp\uv-tool-dir`).
+On GitHub hosted runners this is on the much faster `D:` drive.
+
+On all other platforms the tool environments are placed in the
+[default location](https://docs.astral.sh/uv/concepts/tools/#tools-directory).
+
+If you want to change this behaviour (especially on self-hosted runners) you can use the `tool-dir`
+input:
+
+```yaml
+- name: Install the latest version of uv with a custom tool dir
+  uses: astral-sh/setup-uv@v7
+  with:
+    tool-dir: "/path/to/tool/dir"
+```
+
+## UV_TOOL_BIN_DIR
+
+On Windows `UV_TOOL_BIN_DIR` is set to `uv-tool-bin-dir` in the `TMP` dir (e.g.
+`D:\a\_temp\uv-tool-bin-dir`). On GitHub hosted runners this is on the much faster `D:` drive. This
+path is also automatically added to the PATH.
+
+On all other platforms the tool binaries get installed to the
+[default location](https://docs.astral.sh/uv/concepts/tools/#the-bin-directory).
+
+If you want to change this behaviour (especially on self-hosted runners) you can use the
+`tool-bin-dir` input:
+
+```yaml
+- name: Install the latest version of uv with a custom tool bin dir
+  uses: astral-sh/setup-uv@v7
+  with:
+    tool-bin-dir: "/path/to/tool-bin/dir"
+```
+
+## Tilde Expansion
+
+This action supports expanding the `~` character to the user's home directory for the following inputs:
+
+- `version-file`
+- `cache-local-path`
+- `tool-dir`
+- `tool-bin-dir`
+- `cache-dependency-glob`
+
+```yaml
+- name: Expand the tilde character
+  uses: astral-sh/setup-uv@v7
+  with:
+    cache-local-path: "~/path/to/cache"
+    tool-dir: "~/path/to/tool/dir"
+    tool-bin-dir: "~/path/to/tool-bin/dir"
+    cache-dependency-glob: "~/my-cache-buster"
+```
+
+## Ignore empty workdir
+
+By default, the action will warn if the workdir is empty, because this is usually the case when
+`actions/checkout` is configured to run after `setup-uv`, which is not supported.
+
+If you want to ignore this, set the `ignore-empty-workdir` input to `true`.
+
+```yaml
+- name: Ignore empty workdir
+  uses: astral-sh/setup-uv@v7
+  with:
+    ignore-empty-workdir: true
+```
+
+## Environment Variables
+
+This action sets several environment variables that influence uv's behavior and can be used by subsequent steps:
+
+- `UV_PYTHON`: Set when `python-version` input is specified. Controls which Python version uv uses.
+- `UV_CACHE_DIR`: Set when caching is enabled (unless already configured in uv config files). Controls where uv stores its cache.
+- `UV_TOOL_DIR`: Set when `tool-dir` input is specified. Controls where uv installs tool environments.
+- `UV_TOOL_BIN_DIR`: Set when `tool-bin-dir` input is specified. Controls where uv installs tool binaries.
+- `UV_PYTHON_INSTALL_DIR`: Always set. Controls where uv installs Python versions.
+- `VIRTUAL_ENV`: Set when `activate-environment` is true. Points to the activated virtual environment.
+
+**Environment variables that affect the action behavior:**
+
+- `UV_NO_MODIFY_PATH`: If set, prevents the action from modifying PATH. Cannot be used with `activate-environment`.
+- `UV_CACHE_DIR`: If already set, the action will respect it instead of setting its own cache directory.
+
+```yaml
+- name: Example using environment variables
+  uses: astral-sh/setup-uv@v7
+  with:
+    python-version: "3.12"
+    tool-dir: "/custom/tool/dir"
+    enable-cache: true
+
+- name: Check environment variables
+  run: |
+    echo "UV_PYTHON: $UV_PYTHON"
+    echo "UV_CACHE_DIR: $UV_CACHE_DIR"
+    echo "UV_TOOL_DIR: $UV_TOOL_DIR"
+    echo "UV_PYTHON_INSTALL_DIR: $UV_PYTHON_INSTALL_DIR"
+```

package.json

@@ -6,43 +6,48 @@
   "main": "dist/index.js",
   "scripts": {
     "build": "tsc",
-    "format": "biome format --fix",
-    "format-check": "biome format",
-    "lint": "biome lint --fix",
-    "package": "ncc build -o dist/setup src/setup-uv.ts && ncc build -o dist/save-cache src/save-cache.ts && ncc build -o dist/update-known-checksums src/update-known-checksums.ts",
+    "check": "biome check --write",
+    "package": "ncc build -o dist/setup src/setup-uv.ts && ncc build -o dist/save-cache src/save-cache.ts && ncc build -o dist/update-known-versions src/update-known-versions.ts",
     "test": "jest",
     "act": "act pull_request -W .github/workflows/test.yml --container-architecture linux/amd64 -s GITHUB_TOKEN=\"$(gh auth token)\"",
-    "update-known-checksums": "RUNNER_TEMP=known_checksums node dist/update-known-checksums/index.js src/download/checksum/known-checksums.ts \"$(gh auth token)\"",
-    "all": "npm run build && npm run format && npm run lint && npm run package && npm test"
+    "update-known-versions": "RUNNER_TEMP=known_versions node dist/update-known-versions/index.js src/download/checksum/known-versions.ts \"$(gh auth token)\"",
+    "all": "npm run build && npm run check && npm run package && npm test"
   },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/astral-sh/setup-uv.git"
   },
-  "keywords": ["actions", "python", "setup", "uv"],
+  "keywords": [
+    "actions",
+    "python",
+    "setup",
+    "uv"
+  ],
   "author": "@eifinger",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "^4.0.2",
+    "@actions/cache": "^4.1.0",
     "@actions/core": "^1.11.1",
     "@actions/exec": "^1.1.1",
     "@actions/glob": "^0.5.0",
     "@actions/io": "^1.1.3",
     "@actions/tool-cache": "^2.0.2",
-    "@octokit/core": "^6.1.4",
-    "@octokit/plugin-paginate-rest": "^11.4.3",
-    "@octokit/plugin-rest-endpoint-methods": "^13.3.1",
-    "undici": "^7.5.0",
-    "smol-toml": "^1.3.1"
+    "@octokit/core": "^7.0.6",
+    "@octokit/plugin-paginate-rest": "^14.0.0",
+    "@octokit/plugin-rest-endpoint-methods": "^17.0.0",
+    "@renovatebot/pep440": "^4.2.1",
+    "smol-toml": "^1.4.2",
+    "undici": "5.28.5"
   },
   "devDependencies": {
-    "@biomejs/biome": "1.9.4",
-    "@types/node": "^22.13.10",
-    "@types/semver": "^7.5.8",
-    "@vercel/ncc": "^0.38.3",
-    "jest": "^29.7.0",
+    "@biomejs/biome": "2.3.7",
+    "@types/js-yaml": "^4.0.9",
+    "@types/node": "^24.10.1",
+    "@types/semver": "^7.7.1",
+    "@vercel/ncc": "^0.38.4",
+    "jest": "^30.2.0",
     "js-yaml": "^4.1.0",
-    "ts-jest": "^29.2.6",
-    "typescript": "^5.8.2"
+    "ts-jest": "^29.4.5",
+    "typescript": "^5.9.3"
   }
 }

src/cache/restore-cache.ts

@@ -1,28 +1,49 @@
 import * as cache from "@actions/cache";
 import * as core from "@actions/core";
+import * as exec from "@actions/exec";
+import { hashFiles } from "../hash/hash-files";
 import {
   cacheDependencyGlob,
   cacheLocalPath,
+  cachePython,
   cacheSuffix,
+  pruneCache,
+  pythonDir,
   pythonVersion as pythonVersionInput,
+  restoreCache as shouldRestoreCache,
+  workingDirectory,
 } from "../utils/inputs";
-import { getArch, getPlatform } from "../utils/platforms";
-import { hashFiles } from "../hash/hash-files";
-import * as exec from "@actions/exec";
+import { getArch, getOSNameVersion, getPlatform } from "../utils/platforms";
 
 export const STATE_CACHE_KEY = "cache-key";
 export const STATE_CACHE_MATCHED_KEY = "cache-matched-key";
-const CACHE_VERSION = "1";
+const CACHE_VERSION = "2";
 
 export async function restoreCache(): Promise<void> {
   const cacheKey = await computeKeys();
+  core.saveState(STATE_CACHE_KEY, cacheKey);
+  core.setOutput("cache-key", cacheKey);
+
+  if (!shouldRestoreCache) {
+    core.info("restore-cache is false. Skipping restore cache step.");
+    return;
+  }
 
   let matchedKey: string | undefined;
   core.info(
     `Trying to restore uv cache from GitHub Actions cache with key: ${cacheKey}`,
   );
+  if (cacheLocalPath === undefined) {
+    throw new Error(
+      "cache-local-path is not set. Cannot restore cache without a valid cache path.",
+    );
+  }
+  const cachePaths = [cacheLocalPath.path];
+  if (cachePython) {
+    cachePaths.push(pythonDir);
+  }
   try {
-    matchedKey = await cache.restoreCache([cacheLocalPath], cacheKey);
+    matchedKey = await cache.restoreCache(cachePaths, cacheKey);
   } catch (err) {
     const message = (err as Error).message;
     core.warning(message);
@@ -30,8 +51,6 @@ export async function restoreCache(): Promise<void> {
     return;
   }
 
-  core.saveState(STATE_CACHE_KEY, cacheKey);
-
   handleMatchResult(matchedKey, cacheKey);
 }
 
@@ -54,7 +73,10 @@ async function computeKeys(): Promise<string> {
   const suffix = cacheSuffix ? `-${cacheSuffix}` : "";
   const pythonVersion = await getPythonVersion();
   const platform = await getPlatform();
-  return `setup-uv-${CACHE_VERSION}-${getArch()}-${platform}-${pythonVersion}${cacheDependencyPathHash}${suffix}`;
+  const osNameVersion = getOSNameVersion();
+  const pruned = pruneCache ? "-pruned" : "";
+  const python = cachePython ? "-py" : "";
+  return `setup-uv-${CACHE_VERSION}-${getArch()}-${platform}-${osNameVersion}-${pythonVersion}${pruned}${python}${cacheDependencyPathHash}${suffix}`;
 }
 
 async function getPythonVersion(): Promise<string> {
@@ -64,16 +86,16 @@ async function getPythonVersion(): Promise<string> {
 
   let output = "";
   const options: exec.ExecOptions = {
-    silent: !core.isDebug(),
     listeners: {
       stdout: (data: Buffer) => {
         output += data.toString();
       },
     },
+    silent: !core.isDebug(),
   };
 
   try {
-    const execArgs = ["python", "find"];
+    const execArgs = ["python", "find", "--directory", workingDirectory];
     await exec.exec("uv", execArgs, options);
     const pythonPath = output.trim();
 

src/download/checksum/checksum.ts

@@ -1,9 +1,9 @@
-import * as fs from "node:fs";
 import * as crypto from "node:crypto";
+import * as fs from "node:fs";
 
 import * as core from "@actions/core";
-import { KNOWN_CHECKSUMS } from "./known-checksums";
 import type { Architecture, Platform } from "../../utils/platforms";
+import { KNOWN_CHECKSUMS } from "./known-checksums";
 
 export async function validateChecksum(
   checkSum: string | undefined,
@@ -12,7 +12,7 @@ export async function validateChecksum(
   platform: Platform,
   version: string,
 ): Promise<void> {
-  let isValid: boolean | undefined = undefined;
+  let isValid: boolean | undefined;
   if (checkSum !== undefined && checkSum !== "") {
     isValid = await validateFileCheckSum(downloadPath, checkSum);
   } else {

src/download/download-version.ts

@@ -1,11 +1,21 @@
+import { promises as fs } from "node:fs";
+import * as path from "node:path";
 import * as core from "@actions/core";
 import * as tc from "@actions/tool-cache";
-import * as path from "node:path";
-import { promises as fs } from "node:fs";
+import type { Endpoints } from "@octokit/types";
+import * as pep440 from "@renovatebot/pep440";
+import * as semver from "semver";
 import { OWNER, REPO, TOOL_CACHE_NAME } from "../utils/constants";
+import { Octokit } from "../utils/octokit";
 import type { Architecture, Platform } from "../utils/platforms";
 import { validateChecksum } from "./checksum/checksum";
-import { Octokit } from "../utils/octokit";
+import {
+  getDownloadUrl,
+  getLatestKnownVersion as getLatestVersionInManifest,
+} from "./version-manifest";
+
+type Release =
+  Endpoints["GET /repos/{owner}/{repo}/releases"]["response"]["data"][number];
 
 export function tryGetFromToolCache(
   arch: Architecture,
@@ -19,80 +29,166 @@ export function tryGetFromToolCache(
     resolvedVersion = version;
   }
   const installedPath = tc.find(TOOL_CACHE_NAME, resolvedVersion, arch);
-  return { version: resolvedVersion, installedPath };
+  return { installedPath, version: resolvedVersion };
 }
 
-export async function downloadVersion(
+export async function downloadVersionFromGithub(
   platform: Platform,
   arch: Architecture,
   version: string,
   checkSum: string | undefined,
   githubToken: string,
 ): Promise<{ version: string; cachedToolDir: string }> {
-  const resolvedVersion = await resolveVersion(version, githubToken);
   const artifact = `uv-${arch}-${platform}`;
-  let extension = ".tar.gz";
-  if (platform === "pc-windows-msvc") {
-    extension = ".zip";
-  }
-  const downloadUrl = `https://github.com/${OWNER}/${REPO}/releases/download/${resolvedVersion}/${artifact}${extension}`;
-  core.info(`Downloading uv from "${downloadUrl}" ...`);
+  const extension = getExtension(platform);
+  const downloadUrl = `https://github.com/${OWNER}/${REPO}/releases/download/${version}/${artifact}${extension}`;
+  return await downloadVersion(
+    downloadUrl,
+    artifact,
+    platform,
+    arch,
+    version,
+    checkSum,
+    githubToken,
+  );
+}
 
+export async function downloadVersionFromManifest(
+  manifestUrl: string | undefined,
+  platform: Platform,
+  arch: Architecture,
+  version: string,
+  checkSum: string | undefined,
+  githubToken: string,
+): Promise<{ version: string; cachedToolDir: string }> {
+  const downloadUrl = await getDownloadUrl(
+    manifestUrl,
+    version,
+    arch,
+    platform,
+  );
+  if (!downloadUrl) {
+    core.info(
+      `manifest-file does not contain version ${version}, arch ${arch}, platform ${platform}. Falling back to GitHub releases.`,
+    );
+    return await downloadVersionFromGithub(
+      platform,
+      arch,
+      version,
+      checkSum,
+      githubToken,
+    );
+  }
+  return await downloadVersion(
+    downloadUrl,
+    `uv-${arch}-${platform}`,
+    platform,
+    arch,
+    version,
+    checkSum,
+    githubToken,
+  );
+}
+
+async function downloadVersion(
+  downloadUrl: string,
+  artifactName: string,
+  platform: Platform,
+  arch: Architecture,
+  version: string,
+  checkSum: string | undefined,
+  githubToken: string,
+): Promise<{ version: string; cachedToolDir: string }> {
+  core.info(`Downloading uv from "${downloadUrl}" ...`);
   const downloadPath = await tc.downloadTool(
     downloadUrl,
     undefined,
     githubToken,
   );
-  await validateChecksum(
-    checkSum,
-    downloadPath,
-    arch,
-    platform,
-    resolvedVersion,
-  );
+  await validateChecksum(checkSum, downloadPath, arch, platform, version);
 
   let uvDir: string;
   if (platform === "pc-windows-msvc") {
-    const fullPathWithExtension = `${downloadPath}${extension}`;
-    await fs.copyFile(downloadPath, fullPathWithExtension);
-    uvDir = await tc.extractZip(fullPathWithExtension);
     // On windows extracting the zip does not create an intermediate directory
+    try {
+      // Try tar first as it's much faster, but only bsdtar supports zip files,
+      // so this my fail if another tar, like gnu tar, ends up being used.
+      uvDir = await tc.extractTar(downloadPath, undefined, "x");
+    } catch (err) {
+      core.info(
+        `Extracting with tar failed, falling back to zip extraction: ${(err as Error).message}`,
+      );
+      const extension = getExtension(platform);
+      const fullPathWithExtension = `${downloadPath}${extension}`;
+      await fs.copyFile(downloadPath, fullPathWithExtension);
+      uvDir = await tc.extractZip(fullPathWithExtension);
+    }
   } else {
     const extractedDir = await tc.extractTar(downloadPath);
-    uvDir = path.join(extractedDir, artifact);
+    uvDir = path.join(extractedDir, artifactName);
   }
   const cachedToolDir = await tc.cacheDir(
     uvDir,
     TOOL_CACHE_NAME,
-    resolvedVersion,
+    version,
     arch,
   );
-  return { version: resolvedVersion, cachedToolDir };
+  return { cachedToolDir, version: version };
+}
+
+function getExtension(platform: Platform): string {
+  return platform === "pc-windows-msvc" ? ".zip" : ".tar.gz";
 }
 
 export async function resolveVersion(
   versionInput: string,
+  manifestFile: string | undefined,
   githubToken: string,
+  resolutionStrategy: "highest" | "lowest" = "highest",
 ): Promise<string> {
   core.debug(`Resolving version: ${versionInput}`);
-  const version =
-    versionInput === "latest"
-      ? await getLatestVersion(githubToken)
-      : versionInput;
+  let version: string;
+  const isSimpleMinimumVersionSpecifier =
+    versionInput.includes(">") && !versionInput.includes(",");
+  const resolveVersionSpecifierToLatest =
+    isSimpleMinimumVersionSpecifier && resolutionStrategy === "highest";
+  if (resolveVersionSpecifierToLatest) {
+    core.info("Found minimum version specifier, using latest version");
+  }
+  if (manifestFile) {
+    version =
+      versionInput === "latest" || resolveVersionSpecifierToLatest
+        ? await getLatestVersionInManifest(manifestFile)
+        : versionInput;
+  } else {
+    version =
+      versionInput === "latest" || resolveVersionSpecifierToLatest
+        ? await getLatestVersion(githubToken)
+        : versionInput;
+  }
   if (tc.isExplicitVersion(version)) {
     core.debug(`Version ${version} is an explicit version.`);
+    if (resolveVersionSpecifierToLatest) {
+      if (!pep440.satisfies(version, versionInput)) {
+        throw new Error(`No version found for ${versionInput}`);
+      }
+    }
     return version;
   }
   const availableVersions = await getAvailableVersions(githubToken);
   core.debug(`Available versions: ${availableVersions}`);
-  const resolvedVersion = tc.evaluateVersions(availableVersions, version);
-  if (resolvedVersion === "") {
+  const resolvedVersion =
+    resolutionStrategy === "lowest"
+      ? minSatisfying(availableVersions, version)
+      : maxSatisfying(availableVersions, version);
+  if (resolvedVersion === undefined) {
     throw new Error(`No version found for ${version}`);
   }
   return resolvedVersion;
 }
 
 async function getAvailableVersions(githubToken: string): Promise<string[]> {
+  core.info("Getting available versions from GitHub API...");
   try {
     const octokit = new Octokit({
       auth: githubToken,
@@ -110,18 +206,25 @@ async function getAvailableVersions(githubToken: string): Promise<string[]> {
   }
 }
 
-async function getReleaseTagNames(
-  octokit: InstanceType<typeof Octokit>,
-): Promise<string[]> {
-  const response = await octokit.paginate(octokit.rest.repos.listReleases, {
-    owner: OWNER,
-    repo: REPO,
-  });
-  return response.map((release) => release.tag_name);
+async function getReleaseTagNames(octokit: Octokit): Promise<string[]> {
+  const response: Release[] = await octokit.paginate(
+    octokit.rest.repos.listReleases,
+    {
+      owner: OWNER,
+      repo: REPO,
+    },
+  );
+  const releaseTagNames = response.map((release) => release.tag_name);
+  if (releaseTagNames.length === 0) {
+    throw Error(
+      "Github API request failed while getting releases. Check the GitHub status page for outages. Try again later.",
+    );
+  }
+  return releaseTagNames;
 }
 
 async function getLatestVersion(githubToken: string) {
-  core.debug("Getting latest version...");
+  core.info("Getting latest version from GitHub API...");
   const octokit = new Octokit({
     auth: githubToken,
   });
@@ -130,14 +233,18 @@ async function getLatestVersion(githubToken: string) {
   try {
     latestRelease = await getLatestRelease(octokit);
   } catch (err) {
-    core.info(
-      "No (valid) GitHub token provided. Falling back to anonymous. Requests might be rate limited.",
-    );
-    if (err instanceof Error) {
-      core.debug(err.message);
+    if ((err as Error).message.includes("Bad credentials")) {
+      core.info(
+        "No (valid) GitHub token provided. Falling back to anonymous. Requests might be rate limited.",
+      );
+      const octokit = new Octokit();
+      latestRelease = await getLatestRelease(octokit);
+    } else {
+      core.error(
+        "Github API request failed while getting latest release. Check the GitHub status page for outages. Try again later.",
+      );
+      throw err;
     }
-    const octokit = new Octokit();
-    latestRelease = await getLatestRelease(octokit);
   }
 
   if (!latestRelease) {
@@ -147,10 +254,50 @@ async function getLatestVersion(githubToken: string) {
   return latestRelease.tag_name;
 }
 
-async function getLatestRelease(octokit: InstanceType<typeof Octokit>) {
+async function getLatestRelease(octokit: Octokit) {
   const { data: latestRelease } = await octokit.rest.repos.getLatestRelease({
     owner: OWNER,
     repo: REPO,
   });
   return latestRelease;
 }
+
+function maxSatisfying(
+  versions: string[],
+  version: string,
+): string | undefined {
+  const maxSemver = tc.evaluateVersions(versions, version);
+  if (maxSemver !== "") {
+    core.debug(`Found a version that satisfies the semver range: ${maxSemver}`);
+    return maxSemver;
+  }
+  const maxPep440 = pep440.maxSatisfying(versions, version);
+  if (maxPep440 !== null) {
+    core.debug(
+      `Found a version that satisfies the pep440 specifier: ${maxPep440}`,
+    );
+    return maxPep440;
+  }
+  return undefined;
+}
+
+function minSatisfying(
+  versions: string[],
+  version: string,
+): string | undefined {
+  // For semver, we need to use a different approach since tc.evaluateVersions only returns max
+  // Let's use semver directly for min satisfying
+  const minSemver = semver.minSatisfying(versions, version);
+  if (minSemver !== null) {
+    core.debug(`Found a version that satisfies the semver range: ${minSemver}`);
+    return minSemver;
+  }
+  const minPep440 = pep440.minSatisfying(versions, version);
+  if (minPep440 !== null) {
+    core.debug(
+      `Found a version that satisfies the pep440 specifier: ${minPep440}`,
+    );
+    return minPep440;
+  }
+  return undefined;
+}

src/download/version-manifest.ts

@@ -0,0 +1,91 @@
+import { promises as fs } from "node:fs";
+import { join } from "node:path";
+import * as core from "@actions/core";
+import * as semver from "semver";
+import { fetch } from "../utils/fetch";
+
+const localManifestFile = join(__dirname, "..", "..", "version-manifest.json");
+
+interface ManifestEntry {
+  version: string;
+  artifactName: string;
+  arch: string;
+  platform: string;
+  downloadUrl: string;
+}
+
+export async function getLatestKnownVersion(
+  manifestUrl: string | undefined,
+): Promise<string> {
+  const manifestEntries = await getManifestEntries(manifestUrl);
+  return manifestEntries.reduce((a, b) =>
+    semver.gt(a.version, b.version) ? a : b,
+  ).version;
+}
+
+export async function getDownloadUrl(
+  manifestUrl: string | undefined,
+  version: string,
+  arch: string,
+  platform: string,
+): Promise<string | undefined> {
+  const manifestEntries = await getManifestEntries(manifestUrl);
+  const entry = manifestEntries.find(
+    (entry) =>
+      entry.version === version &&
+      entry.arch === arch &&
+      entry.platform === platform,
+  );
+  return entry ? entry.downloadUrl : undefined;
+}
+
+async function getManifestEntries(
+  manifestUrl: string | undefined,
+): Promise<ManifestEntry[]> {
+  let data: string;
+  if (manifestUrl !== undefined) {
+    core.info(`Fetching manifest-file from: ${manifestUrl}`);
+    const response = await fetch(manifestUrl, {});
+    if (!response.ok) {
+      throw new Error(
+        `Failed to fetch manifest-file: ${response.status} ${response.statusText}`,
+      );
+    }
+    data = await response.text();
+  } else {
+    core.info("manifest-file not provided, reading from local file.");
+    const fileContent = await fs.readFile(localManifestFile);
+    data = fileContent.toString();
+  }
+
+  return JSON.parse(data);
+}
+
+export async function updateVersionManifest(
+  manifestUrl: string,
+  downloadUrls: string[],
+): Promise<void> {
+  const manifest: ManifestEntry[] = [];
+
+  for (const downloadUrl of downloadUrls) {
+    const urlParts = downloadUrl.split("/");
+    const version = urlParts[urlParts.length - 2];
+    const artifactName = urlParts[urlParts.length - 1];
+    if (!artifactName.startsWith("uv-")) {
+      continue;
+    }
+    if (artifactName.startsWith("uv-installer")) {
+      continue;
+    }
+    const artifactParts = artifactName.split(".")[0].split("-");
+    manifest.push({
+      arch: artifactParts[1],
+      artifactName: artifactName,
+      downloadUrl: downloadUrl,
+      platform: artifactName.split(`uv-${artifactParts[1]}-`)[1].split(".")[0],
+      version: version,
+    });
+  }
+  core.debug(`Updating manifest-file: ${JSON.stringify(manifest)}`);
+  await fs.writeFile(manifestUrl, JSON.stringify(manifest));
+}

src/hash/hash-files.ts

@@ -1,8 +1,8 @@
 import * as crypto from "node:crypto";
-import * as core from "@actions/core";
 import * as fs from "node:fs";
 import * as stream from "node:stream";
 import * as util from "node:util";
+import * as core from "@actions/core";
 import { create } from "@actions/glob";
 
 /**

src/save-cache.ts

@@ -1,22 +1,34 @@
+import * as fs from "node:fs";
 import * as cache from "@actions/cache";
 import * as core from "@actions/core";
 import * as exec from "@actions/exec";
-import * as fs from "node:fs";
+import * as pep440 from "@renovatebot/pep440";
 import {
-  STATE_CACHE_MATCHED_KEY,
   STATE_CACHE_KEY,
+  STATE_CACHE_MATCHED_KEY,
 } from "./cache/restore-cache";
+import { STATE_UV_PATH, STATE_UV_VERSION } from "./utils/constants";
 import {
   cacheLocalPath,
+  cachePython,
   enableCache,
   ignoreNothingToCache,
+  pythonDir,
   pruneCache as shouldPruneCache,
+  saveCache as shouldSaveCache,
 } from "./utils/inputs";
 
 export async function run(): Promise<void> {
   try {
     if (enableCache) {
-      await saveCache();
+      if (shouldSaveCache) {
+        await saveCache();
+      } else {
+        core.info("save-cache is false. Skipping save cache step.");
+      }
+      // https://github.com/nodejs/node/issues/56645#issuecomment-3077594952
+      await new Promise((resolve) => setTimeout(resolve, 50));
+
       // node will stay alive if any promises are not resolved,
       // which is a possibility if HTTP requests are dangling
       // due to retries or timeouts. We know that if we got here
@@ -47,14 +59,43 @@ async function saveCache(): Promise<void> {
     await pruneCache();
   }
 
-  core.info(`Saving cache path: ${cacheLocalPath}`);
-  if (!fs.existsSync(cacheLocalPath) && !ignoreNothingToCache) {
+  if (cacheLocalPath === undefined) {
     throw new Error(
-      `Cache path ${cacheLocalPath} does not exist on disk. This likely indicates that there are no dependencies to cache. Consider disabling the cache input if it is not needed.`,
+      "cache-local-path is not set. Cannot save cache without a valid cache path.",
     );
   }
+  let actualCachePath = cacheLocalPath.path;
+  if (
+    process.env.UV_CACHE_DIR &&
+    process.env.UV_CACHE_DIR !== cacheLocalPath.path
+  ) {
+    core.warning(
+      `The environment variable UV_CACHE_DIR has been changed to "${process.env.UV_CACHE_DIR}", by an action or step running after astral-sh/setup-uv. This can lead to unexpected behavior. If you expected this to happen set the cache-local-path input to "${process.env.UV_CACHE_DIR}" instead of "${cacheLocalPath.path}".`,
+    );
+    actualCachePath = process.env.UV_CACHE_DIR;
+  }
+
+  core.info(`Saving cache path: ${actualCachePath}`);
+  if (!fs.existsSync(actualCachePath) && !ignoreNothingToCache) {
+    throw new Error(
+      `Cache path ${actualCachePath} does not exist on disk. This likely indicates that there are no dependencies to cache. Consider disabling the cache input if it is not needed.`,
+    );
+  }
+
+  const cachePaths = [actualCachePath];
+  if (cachePython) {
+    core.info(`Including Python cache path: ${pythonDir}`);
+    if (!fs.existsSync(pythonDir) && !ignoreNothingToCache) {
+      throw new Error(
+        `Python cache path ${pythonDir} does not exist on disk. This likely indicates that there are no dependencies to cache. Consider disabling the cache input if it is not needed.`,
+      );
+    }
+    cachePaths.push(pythonDir);
+  }
+
+  core.info(`Final cache paths: ${cachePaths.join(", ")}`);
   try {
-    await cache.saveCache([cacheLocalPath], cacheKey);
+    await cache.saveCache(cachePaths, cacheKey);
     core.info(`cache saved with the key: ${cacheKey}`);
   } catch (e) {
     if (
@@ -72,13 +113,19 @@ async function saveCache(): Promise<void> {
 }
 
 async function pruneCache(): Promise<void> {
+  const forceSupported = pep440.gte(core.getState(STATE_UV_VERSION), "0.8.24");
+
   const options: exec.ExecOptions = {
-    silent: !core.isDebug(),
+    silent: false,
   };
   const execArgs = ["cache", "prune", "--ci"];
+  if (forceSupported) {
+    execArgs.push("--force");
+  }
 
   core.info("Pruning cache...");
-  await exec.exec("uv", execArgs, options);
+  const uvPath = core.getState(STATE_UV_PATH);
+  await exec.exec(uvPath, execArgs, options);
 }
 
 run();

src/setup-uv.ts

@@ -1,34 +1,40 @@
-import * as core from "@actions/core";
+import fs from "node:fs";
 import * as path from "node:path";
-import {
-  downloadVersion,
-  tryGetFromToolCache,
-  resolveVersion,
-} from "./download/download-version";
+import * as core from "@actions/core";
+import * as exec from "@actions/exec";
 import { restoreCache } from "./cache/restore-cache";
-
+import {
+  downloadVersionFromManifest,
+  resolveVersion,
+  tryGetFromToolCache,
+} from "./download/download-version";
+import { STATE_UV_PATH, STATE_UV_VERSION } from "./utils/constants";
+import {
+  activateEnvironment as activateEnvironmentInput,
+  addProblemMatchers,
+  CacheLocalSource,
+  cacheLocalPath,
+  checkSum,
+  enableCache,
+  githubToken,
+  ignoreEmptyWorkdir,
+  manifestFile,
+  pythonDir,
+  pythonVersion,
+  resolutionStrategy,
+  toolBinDir,
+  toolDir,
+  versionFile as versionFileInput,
+  version as versionInput,
+  workingDirectory,
+} from "./utils/inputs";
 import {
   type Architecture,
   getArch,
   getPlatform,
   type Platform,
 } from "./utils/platforms";
-import {
-  cacheLocalPath,
-  checkSum,
-  ignoreEmptyWorkdir,
-  enableCache,
-  githubToken,
-  pyProjectFile,
-  pythonVersion,
-  toolBinDir,
-  toolDir,
-  uvFile,
-  version as versionInput,
-} from "./utils/inputs";
-import * as exec from "@actions/exec";
-import fs from "node:fs";
-import { getUvVersionFromConfigFile } from "./utils/pyproject";
+import { getUvVersionFromFile } from "./version/resolve";
 
 async function run(): Promise<void> {
   detectEmptyWorkdir();
@@ -44,19 +50,24 @@ async function run(): Promise<void> {
     }
     const setupResult = await setupUv(platform, arch, checkSum, githubToken);
 
-    addUvToPath(setupResult.uvDir);
     addToolBinToPath();
+    addUvToPathAndOutput(setupResult.uvDir);
     setToolDir();
-    await setupPython();
+    addPythonDirToPath();
+    setupPython();
+    await activateEnvironment();
     addMatchers();
-    setCacheDir(cacheLocalPath);
+    setCacheDir();
 
     core.setOutput("uv-version", setupResult.version);
+    core.saveState(STATE_UV_VERSION, setupResult.version);
     core.info(`Successfully installed uv version ${setupResult.version}`);
 
     if (enableCache) {
       await restoreCache();
     }
+    // https://github.com/nodejs/node/issues/56645#issuecomment-3077594952
+    await new Promise((resolve) => setTimeout(resolve, 50));
     process.exit(0);
   } catch (err) {
     core.setFailed((err as Error).message);
@@ -64,7 +75,7 @@ async function run(): Promise<void> {
 }
 
 function detectEmptyWorkdir(): void {
-  if (fs.readdirSync(".").length === 0) {
+  if (fs.readdirSync(workingDirectory).length === 0) {
     if (ignoreEmptyWorkdir) {
       core.info(
         "Empty workdir detected. Ignoring because ignore-empty-workdir is enabled",
@@ -83,7 +94,7 @@ async function setupUv(
   checkSum: string | undefined,
   githubToken: string,
 ): Promise<{ uvDir: string; version: string }> {
-  const resolvedVersion = await determineVersion();
+  const resolvedVersion = await determineVersion(manifestFile);
   const toolCacheResult = tryGetFromToolCache(arch, resolvedVersion);
   if (toolCacheResult.installedPath) {
     core.info(`Found uv in tool-cache for ${toolCacheResult.version}`);
@@ -93,7 +104,8 @@ async function setupUv(
     };
   }
 
-  const downloadVersionResult = await downloadVersion(
+  const downloadVersionResult = await downloadVersionFromManifest(
+    manifestFile,
     platform,
     arch,
     resolvedVersion,
@@ -107,40 +119,77 @@ async function setupUv(
   };
 }
 
-async function determineVersion(): Promise<string> {
+async function determineVersion(
+  manifestFile: string | undefined,
+): Promise<string> {
   if (versionInput !== "") {
-    return await resolveVersion(versionInput, githubToken);
+    return await resolveVersion(
+      versionInput,
+      manifestFile,
+      githubToken,
+      resolutionStrategy,
+    );
   }
-  const configFile = uvFile !== "" ? uvFile : pyProjectFile;
-  if (configFile !== "") {
-    const versionFromConfigFile = getUvVersionFromConfigFile(configFile);
-    if (versionFromConfigFile === undefined) {
-      core.warning(
-        `Could not find required-version under [tool.uv] in ${configFile}. Falling back to latest`,
+  if (versionFileInput !== "") {
+    const versionFromFile = getUvVersionFromFile(versionFileInput);
+    if (versionFromFile === undefined) {
+      throw new Error(
+        `Could not determine uv version from file: ${versionFileInput}`,
       );
     }
-    return await resolveVersion(versionFromConfigFile || "latest", githubToken);
+    return await resolveVersion(
+      versionFromFile,
+      manifestFile,
+      githubToken,
+      resolutionStrategy,
+    );
   }
-  if (!fs.existsSync("uv.toml") && !fs.existsSync("pyproject.toml")) {
-    return await resolveVersion("latest", githubToken);
+  const versionFromUvToml = getUvVersionFromFile(
+    `${workingDirectory}${path.sep}uv.toml`,
+  );
+  const versionFromPyproject = getUvVersionFromFile(
+    `${workingDirectory}${path.sep}pyproject.toml`,
+  );
+  if (versionFromUvToml === undefined && versionFromPyproject === undefined) {
+    core.info(
+      "Could not determine uv version from uv.toml or pyproject.toml. Falling back to latest.",
+    );
   }
-  const versionFile = fs.existsSync("uv.toml") ? "uv.toml" : "pyproject.toml";
-  const versionFromConfigFile = getUvVersionFromConfigFile(versionFile);
-  return await resolveVersion(versionFromConfigFile || "latest", githubToken);
+  return await resolveVersion(
+    versionFromUvToml || versionFromPyproject || "latest",
+    manifestFile,
+    githubToken,
+    resolutionStrategy,
+  );
 }
 
-function addUvToPath(cachedPath: string): void {
-  core.addPath(cachedPath);
-  core.info(`Added ${cachedPath} to the path`);
+function addUvToPathAndOutput(cachedPath: string): void {
+  core.setOutput("uv-path", `${cachedPath}${path.sep}uv`);
+  core.saveState(STATE_UV_PATH, `${cachedPath}${path.sep}uv`);
+  core.setOutput("uvx-path", `${cachedPath}${path.sep}uvx`);
+  if (process.env.UV_NO_MODIFY_PATH !== undefined) {
+    core.info("UV_NO_MODIFY_PATH is set, not modifying PATH");
+  } else {
+    core.addPath(cachedPath);
+    core.info(`Added ${cachedPath} to the path`);
+  }
 }
 
 function addToolBinToPath(): void {
   if (toolBinDir !== undefined) {
     core.exportVariable("UV_TOOL_BIN_DIR", toolBinDir);
     core.info(`Set UV_TOOL_BIN_DIR to ${toolBinDir}`);
-    core.addPath(toolBinDir);
-    core.info(`Added ${toolBinDir} to the path`);
+    if (process.env.UV_NO_MODIFY_PATH !== undefined) {
+      core.info(`UV_NO_MODIFY_PATH is set, not adding ${toolBinDir} to path`);
+    } else {
+      core.addPath(toolBinDir);
+      core.info(`Added ${toolBinDir} to the path`);
+    }
   } else {
+    if (process.env.UV_NO_MODIFY_PATH !== undefined) {
+      core.info("UV_NO_MODIFY_PATH is set, not adding user local bin to path");
+      return;
+    }
     if (process.env.XDG_BIN_HOME !== undefined) {
       core.addPath(process.env.XDG_BIN_HOME);
       core.info(`Added ${process.env.XDG_BIN_HOME} to the path`);
@@ -161,35 +210,65 @@ function setToolDir(): void {
   }
 }
 
-async function setupPython(): Promise<void> {
-  if (pythonVersion !== "") {
-    core.exportVariable("UV_PYTHON", pythonVersion);
-    core.info(`Set UV_PYTHON to ${pythonVersion}`);
-    const options: exec.ExecOptions = {
-      silent: !core.isDebug(),
-    };
-    const execArgs = ["venv", "--python", pythonVersion];
-
-    core.info("Activating python venv...");
-    await exec.exec("uv", execArgs, options);
-
-    let venvBinPath = ".venv/bin";
-    if (process.platform === "win32") {
-      venvBinPath = ".venv/Scripts";
-    }
-    core.addPath(path.resolve(venvBinPath));
-    core.exportVariable("VIRTUAL_ENV", path.resolve(".venv"));
+function addPythonDirToPath(): void {
+  core.exportVariable("UV_PYTHON_INSTALL_DIR", pythonDir);
+  core.info(`Set UV_PYTHON_INSTALL_DIR to ${pythonDir}`);
+  if (process.env.UV_NO_MODIFY_PATH !== undefined) {
+    core.info("UV_NO_MODIFY_PATH is set, not adding python dir to path");
+  } else {
+    core.addPath(pythonDir);
+    core.info(`Added ${pythonDir} to the path`);
   }
 }
 
-function setCacheDir(cacheLocalPath: string): void {
-  core.exportVariable("UV_CACHE_DIR", cacheLocalPath);
-  core.info(`Set UV_CACHE_DIR to ${cacheLocalPath}`);
+function setupPython(): void {
+  if (pythonVersion !== "") {
+    core.exportVariable("UV_PYTHON", pythonVersion);
+    core.info(`Set UV_PYTHON to ${pythonVersion}`);
+  }
+}
+
+async function activateEnvironment(): Promise<void> {
+  if (activateEnvironmentInput) {
+    if (process.env.UV_NO_MODIFY_PATH !== undefined) {
+      throw new Error(
+        "UV_NO_MODIFY_PATH and activate-environment cannot be used together.",
+      );
+    }
+    const execArgs = ["venv", ".venv", "--directory", workingDirectory];
+
+    core.info("Activating python venv...");
+    await exec.exec("uv", execArgs);
+
+    const venvPath = path.resolve(`${workingDirectory}${path.sep}.venv`);
+    let venvBinPath = `${venvPath}${path.sep}bin`;
+    if (process.platform === "win32") {
+      venvBinPath = `${venvPath}${path.sep}Scripts`;
+    }
+    core.addPath(path.resolve(venvBinPath));
+    core.exportVariable("VIRTUAL_ENV", venvPath);
+    core.setOutput("venv", venvPath);
+  }
+}
+
+function setCacheDir(): void {
+  if (cacheLocalPath !== undefined) {
+    if (cacheLocalPath.source === CacheLocalSource.Config) {
+      core.info(
+        "Using cache-dir from uv config file, not modifying UV_CACHE_DIR",
+      );
+      return;
+    }
+    core.exportVariable("UV_CACHE_DIR", cacheLocalPath.path);
+    core.info(`Set UV_CACHE_DIR to ${cacheLocalPath.path}`);
+  }
 }
 
 function addMatchers(): void {
-  const matchersPath = path.join(__dirname, `..${path.sep}..`, ".github");
-  core.info(`##[add-matcher]${path.join(matchersPath, "python.json")}`);
+  if (addProblemMatchers) {
+    const matchersPath = path.join(__dirname, `..${path.sep}..`, ".github");
+    core.info(`##[add-matcher]${path.join(matchersPath, "python.json")}`);
+  }
 }
 
 run();

src/update-known-checksums.ts

@@ -1,34 +0,0 @@
-import * as semver from "semver";
-import * as core from "@actions/core";
-import { Octokit } from "./utils/octokit";
-
-import { OWNER, REPO } from "./utils/constants";
-
-import { updateChecksums } from "./download/checksum/update-known-checksums";
-
-async function run(): Promise<void> {
-  const checksumFilePath = process.argv.slice(2)[0];
-  const github_token = process.argv.slice(2)[1];
-
-  const octokit = new Octokit({
-    auth: github_token,
-  });
-
-  const response = await octokit.paginate(octokit.rest.repos.listReleases, {
-    owner: OWNER,
-    repo: REPO,
-  });
-  const downloadUrls: string[] = response.flatMap((release) =>
-    release.assets
-      .filter((asset) => asset.name.endsWith(".sha256"))
-      .map((asset) => asset.browser_download_url),
-  );
-  await updateChecksums(checksumFilePath, downloadUrls);
-
-  const latestVersion = response
-    .map((release) => release.tag_name)
-    .sort(semver.rcompare)[0];
-  core.setOutput("latest-version", latestVersion);
-}
-
-run();

src/update-known-versions.ts

@@ -0,0 +1,63 @@
+import * as core from "@actions/core";
+import type { Endpoints } from "@octokit/types";
+import * as semver from "semver";
+import { updateChecksums } from "./download/checksum/update-known-checksums";
+import {
+  getLatestKnownVersion,
+  updateVersionManifest,
+} from "./download/version-manifest";
+import { OWNER, REPO } from "./utils/constants";
+import { Octokit } from "./utils/octokit";
+
+type Release =
+  Endpoints["GET /repos/{owner}/{repo}/releases"]["response"]["data"][number];
+
+async function run(): Promise<void> {
+  const checksumFilePath = process.argv.slice(2)[0];
+  const versionsManifestFile = process.argv.slice(2)[1];
+  const githubToken = process.argv.slice(2)[2];
+
+  const octokit = new Octokit({
+    auth: githubToken,
+  });
+
+  const { data: latestRelease } = await octokit.rest.repos.getLatestRelease({
+    owner: OWNER,
+    repo: REPO,
+  });
+
+  const latestKnownVersion = await getLatestKnownVersion(undefined);
+
+  if (semver.lte(latestRelease.tag_name, latestKnownVersion)) {
+    core.info(
+      `Latest release (${latestRelease.tag_name}) is not newer than the latest known version (${latestKnownVersion}). Skipping update.`,
+    );
+    return;
+  }
+
+  const releases: Release[] = await octokit.paginate(
+    octokit.rest.repos.listReleases,
+    {
+      owner: OWNER,
+      repo: REPO,
+    },
+  );
+  const checksumDownloadUrls: string[] = releases.flatMap((release) =>
+    release.assets
+      .filter((asset) => asset.name.endsWith(".sha256"))
+      .map((asset) => asset.browser_download_url),
+  );
+  await updateChecksums(checksumFilePath, checksumDownloadUrls);
+
+  const artifactDownloadUrls: string[] = releases.flatMap((release) =>
+    release.assets
+      .filter((asset) => !asset.name.endsWith(".sha256"))
+      .map((asset) => asset.browser_download_url),
+  );
+
+  await updateVersionManifest(versionsManifestFile, artifactDownloadUrls);
+
+  core.setOutput("latest-version", latestRelease.tag_name);
+}
+
+run();

src/utils/config-file.ts

@@ -0,0 +1,24 @@
+import fs from "node:fs";
+import * as toml from "smol-toml";
+
+export function getConfigValueFromTomlFile(
+  filePath: string,
+  key: string,
+): string | undefined {
+  if (!fs.existsSync(filePath) || !filePath.endsWith(".toml")) {
+    return undefined;
+  }
+  const fileContent = fs.readFileSync(filePath, "utf-8");
+
+  if (filePath.endsWith("pyproject.toml")) {
+    const tomlContent = toml.parse(fileContent) as {
+      tool?: { uv?: Record<string, string | undefined> };
+    };
+    return tomlContent?.tool?.uv?.[key];
+  }
+  const tomlContent = toml.parse(fileContent) as Record<
+    string,
+    string | undefined
+  >;
+  return tomlContent[key];
+}

src/utils/constants.ts

@@ -1,3 +1,5 @@
 export const REPO = "uv";
 export const OWNER = "astral-sh";
 export const TOOL_CACHE_NAME = "uv";
+export const STATE_UV_PATH = "uv-path";
+export const STATE_UV_VERSION = "uv-version";

src/utils/fetch.ts

@@ -0,0 +1,21 @@
+import { ProxyAgent, type RequestInit, fetch as undiciFetch } from "undici";
+
+export function getProxyAgent() {
+  const httpProxy = process.env.HTTP_PROXY || process.env.http_proxy;
+  if (httpProxy) {
+    return new ProxyAgent(httpProxy);
+  }
+
+  const httpsProxy = process.env.HTTPS_PROXY || process.env.https_proxy;
+  if (httpsProxy) {
+    return new ProxyAgent(httpsProxy);
+  }
+
+  return undefined;
+}
+
+export const fetch = async (url: string, opts: RequestInit) =>
+  await undiciFetch(url, {
+    dispatcher: getProxyAgent(),
+    ...opts,
+  });

src/utils/inputs.ts

@@ -1,23 +1,49 @@
-import * as core from "@actions/core";
 import path from "node:path";
+import * as core from "@actions/core";
+import { getConfigValueFromTomlFile } from "./config-file";
 
+export enum CacheLocalSource {
+  Input,
+  Config,
+  Env,
+  Default,
+}
+
+export const workingDirectory = core.getInput("working-directory");
 export const version = core.getInput("version");
-export const pyProjectFile = core.getInput("pyproject-file");
-export const uvFile = core.getInput("uv-file");
+export const versionFile = getVersionFile();
 export const pythonVersion = core.getInput("python-version");
+export const activateEnvironment = core.getBooleanInput("activate-environment");
 export const checkSum = core.getInput("checksum");
 export const enableCache = getEnableCache();
+export const restoreCache = core.getInput("restore-cache") === "true";
+export const saveCache = core.getInput("save-cache") === "true";
 export const cacheSuffix = core.getInput("cache-suffix") || "";
 export const cacheLocalPath = getCacheLocalPath();
-export const cacheDependencyGlob = core.getInput("cache-dependency-glob");
+export const cacheDependencyGlob = getCacheDependencyGlob();
 export const pruneCache = core.getInput("prune-cache") === "true";
+export const cachePython = core.getInput("cache-python") === "true";
 export const ignoreNothingToCache =
   core.getInput("ignore-nothing-to-cache") === "true";
 export const ignoreEmptyWorkdir =
   core.getInput("ignore-empty-workdir") === "true";
 export const toolBinDir = getToolBinDir();
 export const toolDir = getToolDir();
+export const pythonDir = getUvPythonDir();
 export const githubToken = core.getInput("github-token");
+export const manifestFile = getManifestFile();
+export const addProblemMatchers =
+  core.getInput("add-problem-matchers") === "true";
+export const resolutionStrategy = getResolutionStrategy();
+
+function getVersionFile(): string {
+  const versionFileInput = core.getInput("version-file");
+  if (versionFileInput !== "") {
+    const tildeExpanded = expandTilde(versionFileInput);
+    return resolveRelativePath(tildeExpanded);
+  }
+  return versionFileInput;
+}
 
 function getEnableCache(): boolean {
   const enableCacheInput = core.getInput("enable-cache");
@@ -30,7 +56,8 @@ function getEnableCache(): boolean {
 function getToolBinDir(): string | undefined {
   const toolBinDirInput = core.getInput("tool-bin-dir");
   if (toolBinDirInput !== "") {
-    return expandTilde(toolBinDirInput);
+    const tildeExpanded = expandTilde(toolBinDirInput);
+    return resolveRelativePath(tildeExpanded);
   }
   if (process.platform === "win32") {
     if (process.env.RUNNER_TEMP !== undefined) {
@@ -46,7 +73,8 @@ function getToolBinDir(): string | undefined {
 function getToolDir(): string | undefined {
   const toolDirInput = core.getInput("tool-dir");
   if (toolDirInput !== "") {
-    return expandTilde(toolDirInput);
+    const tildeExpanded = expandTilde(toolDirInput);
+    return resolveRelativePath(tildeExpanded);
   }
   if (process.platform === "win32") {
     if (process.env.RUNNER_TEMP !== undefined) {
@@ -59,22 +87,142 @@ function getToolDir(): string | undefined {
   return undefined;
 }
 
-function getCacheLocalPath(): string {
+function getCacheLocalPath():
+  | {
+      path: string;
+      source: CacheLocalSource;
+    }
+  | undefined {
   const cacheLocalPathInput = core.getInput("cache-local-path");
   if (cacheLocalPathInput !== "") {
-    return expandTilde(cacheLocalPathInput);
+    const tildeExpanded = expandTilde(cacheLocalPathInput);
+    return {
+      path: resolveRelativePath(tildeExpanded),
+      source: CacheLocalSource.Input,
+    };
+  }
+  const cacheDirFromConfig = getCacheDirFromConfig();
+  if (cacheDirFromConfig !== undefined) {
+    return { path: cacheDirFromConfig, source: CacheLocalSource.Config };
+  }
+  if (process.env.UV_CACHE_DIR !== undefined) {
+    core.info(`UV_CACHE_DIR is already set to ${process.env.UV_CACHE_DIR}`);
+    return { path: process.env.UV_CACHE_DIR, source: CacheLocalSource.Env };
+  }
+  if (getEnableCache()) {
+    if (process.env.RUNNER_ENVIRONMENT === "github-hosted") {
+      if (process.env.RUNNER_TEMP !== undefined) {
+        return {
+          path: `${process.env.RUNNER_TEMP}${path.sep}setup-uv-cache`,
+          source: CacheLocalSource.Default,
+        };
+      }
+      throw Error(
+        "Could not determine UV_CACHE_DIR. Please make sure RUNNER_TEMP is set or provide the cache-local-path input",
+      );
+    }
+    if (process.platform === "win32") {
+      return {
+        path: `${process.env.APPDATA}${path.sep}uv${path.sep}cache`,
+        source: CacheLocalSource.Default,
+      };
+    }
+    return {
+      path: `${process.env.HOME}${path.sep}.cache${path.sep}uv`,
+      source: CacheLocalSource.Default,
+    };
+  }
+}
+
+function getCacheDirFromConfig(): string | undefined {
+  for (const filePath of [versionFile, "uv.toml", "pyproject.toml"]) {
+    const resolvedPath = resolveRelativePath(filePath);
+    try {
+      const cacheDir = getConfigValueFromTomlFile(resolvedPath, "cache-dir");
+      if (cacheDir !== undefined) {
+        core.info(`Found cache-dir in ${resolvedPath}: ${cacheDir}`);
+        return cacheDir;
+      }
+    } catch (err) {
+      const message = (err as Error).message;
+      core.warning(`Error while parsing ${filePath}: ${message}`);
+      return undefined;
+    }
+  }
+  return undefined;
+}
+
+export function getUvPythonDir(): string {
+  if (process.env.UV_PYTHON_INSTALL_DIR !== undefined) {
+    core.info(
+      `UV_PYTHON_INSTALL_DIR is already set to  ${process.env.UV_PYTHON_INSTALL_DIR}`,
+    );
+    return process.env.UV_PYTHON_INSTALL_DIR;
+  }
+  if (process.env.RUNNER_ENVIRONMENT !== "github-hosted") {
+    if (process.platform === "win32") {
+      return `${process.env.APPDATA}${path.sep}uv${path.sep}python`;
+    } else {
+      return `${process.env.HOME}${path.sep}.local${path.sep}share${path.sep}uv${path.sep}python`;
+    }
   }
   if (process.env.RUNNER_TEMP !== undefined) {
-    return `${process.env.RUNNER_TEMP}${path.sep}setup-uv-cache`;
+    return `${process.env.RUNNER_TEMP}${path.sep}uv-python-dir`;
   }
   throw Error(
-    "Could not determine UV_CACHE_DIR. Please make sure RUNNER_TEMP is set or provide the cache-local-path input",
+    "Could not determine UV_PYTHON_INSTALL_DIR. Please make sure RUNNER_TEMP is set or provide the UV_PYTHON_INSTALL_DIR environment variable",
   );
 }
 
+function getCacheDependencyGlob(): string {
+  const cacheDependencyGlobInput = core.getInput("cache-dependency-glob");
+  if (cacheDependencyGlobInput !== "") {
+    return cacheDependencyGlobInput
+      .split("\n")
+      .map((part) => part.trim())
+      .map((part) => expandTilde(part))
+      .map((part) => resolveRelativePath(part))
+      .join("\n");
+  }
+  return cacheDependencyGlobInput;
+}
+
 function expandTilde(input: string): string {
   if (input.startsWith("~")) {
     return `${process.env.HOME}${input.substring(1)}`;
   }
   return input;
 }
+
+function resolveRelativePath(inputPath: string): string {
+  const hasNegation = inputPath.startsWith("!");
+  const pathWithoutNegation = hasNegation ? inputPath.substring(1) : inputPath;
+
+  const resolvedPath = path.resolve(workingDirectory, pathWithoutNegation);
+
+  core.debug(
+    `Resolving relative path ${inputPath} to ${hasNegation ? "!" : ""}${resolvedPath}`,
+  );
+  return hasNegation ? `!${resolvedPath}` : resolvedPath;
+}
+
+function getManifestFile(): string | undefined {
+  const manifestFileInput = core.getInput("manifest-file");
+  if (manifestFileInput !== "") {
+    return manifestFileInput;
+  }
+  return undefined;
+}
+
+function getResolutionStrategy(): "highest" | "lowest" {
+  const resolutionStrategyInput = core.getInput("resolution-strategy");
+  if (resolutionStrategyInput === "lowest") {
+    return "lowest";
+  }
+  if (resolutionStrategyInput === "highest" || resolutionStrategyInput === "") {
+    return "highest";
+  }
+  throw new Error(
+    `Invalid resolution-strategy: ${resolutionStrategyInput}. Must be 'highest' or 'lowest'.`,
+  );
+}

src/utils/octokit.ts

@@ -1,14 +1,11 @@
+import type { OctokitOptions } from "@octokit/core";
 import { Octokit as Core } from "@octokit/core";
-import type {
-  Constructor,
-  OctokitOptions,
-} from "@octokit/core/dist-types/types";
 import {
-  paginateRest,
   type PaginateInterface,
+  paginateRest,
 } from "@octokit/plugin-paginate-rest";
 import { legacyRestEndpointMethods } from "@octokit/plugin-rest-endpoint-methods";
-import { fetch as undiciFetch, ProxyAgent, type RequestInit } from "undici";
+import { fetch as customFetch } from "./fetch";
 
 export type { RestEndpointMethodTypes } from "@octokit/plugin-rest-endpoint-methods";
 
@@ -17,42 +14,21 @@ const DEFAULTS = {
   userAgent: "setup-uv",
 };
 
-export function getProxyAgent() {
-  const httpProxy = process.env.HTTP_PROXY || process.env.http_prox;
-  if (httpProxy) {
-    return new ProxyAgent(httpProxy);
-  }
+const OctokitWithPlugins = Core.plugin(paginateRest, legacyRestEndpointMethods);
 
-  const httpsProxy = process.env.HTTPS_PROXY || process.env.https_proxy;
-  if (httpsProxy) {
-    return new ProxyAgent(httpsProxy);
-  }
+export const Octokit = OctokitWithPlugins.defaults(function buildDefaults(
+  options: OctokitOptions,
+): OctokitOptions {
+  return {
+    ...DEFAULTS,
+    ...options,
+    request: {
+      fetch: customFetch,
+      ...options.request,
+    },
+  };
+});
 
-  return undefined;
-}
-
-export const customFetch = async (url: string, opts: RequestInit) =>
-  await undiciFetch(url, {
-    dispatcher: getProxyAgent(),
-    ...opts,
-  });
-
-export const Octokit: typeof Core &
-  Constructor<
-    {
-      paginate: PaginateInterface;
-    } & ReturnType<typeof legacyRestEndpointMethods>
-  > = Core.plugin(paginateRest, legacyRestEndpointMethods).defaults(
-  function buildDefaults(options: OctokitOptions): OctokitOptions {
-    return {
-      ...DEFAULTS,
-      ...options,
-      request: {
-        fetch: customFetch,
-        ...options.request,
-      },
-    };
-  },
-);
-
-export type Octokit = InstanceType<typeof Octokit>;
+export type Octokit = InstanceType<typeof OctokitWithPlugins> & {
+  paginate: PaginateInterface;
+};

src/utils/platforms.ts

@@ -1,5 +1,7 @@
-import * as exec from "@actions/exec";
+import fs from "node:fs";
+import os from "node:os";
 import * as core from "@actions/core";
+import * as exec from "@actions/exec";
 export type Platform =
   | "unknown-linux-gnu"
   | "unknown-linux-musl"
@@ -16,11 +18,11 @@ export type Architecture =
 export function getArch(): Architecture | undefined {
   const arch = process.arch;
   const archMapping: { [key: string]: Architecture } = {
-    ia32: "i686",
-    x64: "x86_64",
     arm64: "aarch64",
-    s390x: "s390x",
+    ia32: "i686",
     ppc64: "powerpc64le",
+    s390x: "s390x",
+    x64: "x86_64",
   };
 
   if (arch in archMapping) {
@@ -31,8 +33,8 @@ export function getArch(): Architecture | undefined {
 export async function getPlatform(): Promise<Platform | undefined> {
   const processPlatform = process.platform;
   const platformMapping: { [key: string]: Platform } = {
-    linux: "unknown-linux-gnu",
     darwin: "apple-darwin",
+    linux: "unknown-linux-gnu",
     win32: "pc-windows-msvc",
   };
 
@@ -50,16 +52,16 @@ async function isMuslOs(): Promise<boolean> {
   let stdOutput = "";
   let errOutput = "";
   const options: exec.ExecOptions = {
-    silent: !core.isDebug(),
+    ignoreReturnCode: true,
     listeners: {
-      stdout: (data: Buffer) => {
-        stdOutput += data.toString();
-      },
       stderr: (data: Buffer) => {
         errOutput += data.toString();
       },
+      stdout: (data: Buffer) => {
+        stdOutput += data.toString();
+      },
     },
-    ignoreReturnCode: true,
+    silent: !core.isDebug(),
   };
 
   try {
@@ -74,3 +76,71 @@ async function isMuslOs(): Promise<boolean> {
     return false;
   }
 }
+
+/**
+ * Returns OS name and version for cache key differentiation.
+ * Examples: "ubuntu-22.04", "macos-14", "windows-2022"
+ * Throws if OS detection fails.
+ */
+export function getOSNameVersion(): string {
+  const platform = process.platform;
+
+  if (platform === "linux") {
+    return getLinuxOSNameVersion();
+  }
+  if (platform === "darwin") {
+    return getMacOSNameVersion();
+  }
+  if (platform === "win32") {
+    return getWindowsNameVersion();
+  }
+
+  throw new Error(`Unsupported platform: ${platform}`);
+}
+
+function getLinuxOSNameVersion(): string {
+  const files = ["/etc/os-release", "/usr/lib/os-release"];
+
+  for (const file of files) {
+    try {
+      const content = fs.readFileSync(file, "utf8");
+      const id = parseOsReleaseValue(content, "ID");
+      const versionId = parseOsReleaseValue(content, "VERSION_ID");
+
+      if (id && versionId) {
+        return `${id}-${versionId}`;
+      }
+    } catch {
+      // Try next file
+    }
+  }
+
+  throw new Error(
+    "Failed to determine Linux distribution. " +
+      "Could not read /etc/os-release or /usr/lib/os-release",
+  );
+}
+
+function parseOsReleaseValue(content: string, key: string): string | undefined {
+  const regex = new RegExp(`^${key}=["']?([^"'\\n]*)["']?$`, "m");
+  const match = content.match(regex);
+  return match?.[1];
+}
+
+function getMacOSNameVersion(): string {
+  const darwinVersion = Number.parseInt(os.release().split(".")[0], 10);
+  if (Number.isNaN(darwinVersion)) {
+    throw new Error(`Failed to parse macOS version from: ${os.release()}`);
+  }
+  const macosVersion = darwinVersion - 9;
+  return `macos-${macosVersion}`;
+}
+
+function getWindowsNameVersion(): string {
+  const version = os.version();
+  const match = version.match(/Windows(?: Server)? (\d+)/);
+  if (!match) {
+    throw new Error(`Failed to parse Windows version from: ${version}`);
+  }
+  return `windows-${match[1]}`;
+}

src/utils/pyproject.ts

@@ -1,46 +0,0 @@
-import fs from "node:fs";
-import * as core from "@actions/core";
-import * as toml from "smol-toml";
-
-export function getUvVersionFromConfigFile(
-  filePath: string,
-): string | undefined {
-  core.debug(`Trying to find required-version for uv in: ${filePath}`);
-  if (!fs.existsSync(filePath)) {
-    core.warning(`Could not find file: ${filePath}`);
-    return undefined;
-  }
-  let requiredVersion: string | undefined;
-  try {
-    requiredVersion = getRequiredVersion(filePath);
-  } catch (err) {
-    const message = (err as Error).message;
-    core.warning(`Error while parsing ${filePath}: ${message}`);
-    return undefined;
-  }
-
-  if (requiredVersion?.startsWith("==")) {
-    requiredVersion = requiredVersion.slice(2);
-  }
-  if (requiredVersion !== undefined) {
-    core.info(
-      `Found required-version for uv in ${filePath}: ${requiredVersion}`,
-    );
-  }
-  return requiredVersion;
-}
-
-function getRequiredVersion(filePath: string): string | undefined {
-  const fileContent = fs.readFileSync(filePath, "utf-8");
-
-  if (filePath.endsWith("pyproject.toml")) {
-    const tomlContent = toml.parse(fileContent) as {
-      tool?: { uv?: { "required-version"?: string } };
-    };
-    return tomlContent?.tool?.uv?.["required-version"];
-  }
-  const tomlContent = toml.parse(fileContent) as {
-    "required-version"?: string;
-  };
-  return tomlContent["required-version"];
-}

src/version/requirements-file.ts

@@ -0,0 +1,43 @@
+import fs from "node:fs";
+import * as toml from "smol-toml";
+
+export function getUvVersionFromRequirementsFile(
+  filePath: string,
+): string | undefined {
+  const fileContent = fs.readFileSync(filePath, "utf-8");
+  if (filePath.endsWith(".txt")) {
+    return getUvVersionFromAllDependencies(fileContent.split("\n"));
+  }
+  const dependencies = parsePyprojectDependencies(fileContent);
+  return getUvVersionFromAllDependencies(dependencies);
+}
+function getUvVersionFromAllDependencies(
+  allDependencies: string[],
+): string | undefined {
+  return allDependencies
+    .find((dep: string) => dep.match(/^uv[=<>~!]/))
+    ?.match(/^uv([=<>~!]+\S*)/)?.[1]
+    .trim();
+}
+
+interface Pyproject {
+  project?: {
+    dependencies?: string[];
+    "optional-dependencies"?: Record<string, string[]>;
+  };
+  "dependency-groups"?: Record<string, Array<string | object>>;
+}
+
+function parsePyprojectDependencies(pyprojectContent: string): string[] {
+  const pyproject: Pyproject = toml.parse(pyprojectContent);
+  const dependencies: string[] = pyproject?.project?.dependencies || [];
+  const optionalDependencies: string[] = Object.values(
+    pyproject?.project?.["optional-dependencies"] || {},
+  ).flat();
+  const devDependencies: string[] = Object.values(
+    pyproject?.["dependency-groups"] || {},
+  )
+    .flat()
+    .filter((item: string | object) => typeof item === "string");
+  return dependencies.concat(optionalDependencies, devDependencies);
+}

src/version/resolve.ts

@@ -0,0 +1,34 @@
+import fs from "node:fs";
+import * as core from "@actions/core";
+import { getConfigValueFromTomlFile } from "../utils/config-file";
+import { getUvVersionFromRequirementsFile } from "./requirements-file";
+import { getUvVersionFromToolVersions } from "./tool-versions-file";
+
+export function getUvVersionFromFile(filePath: string): string | undefined {
+  core.info(`Trying to find version for uv in: ${filePath}`);
+  if (!fs.existsSync(filePath)) {
+    core.info(`Could not find file: ${filePath}`);
+    return undefined;
+  }
+  let uvVersion: string | undefined;
+  try {
+    uvVersion = getUvVersionFromToolVersions(filePath);
+    if (uvVersion === undefined) {
+      uvVersion = getConfigValueFromTomlFile(filePath, "required-version");
+    }
+    if (uvVersion === undefined) {
+      uvVersion = getUvVersionFromRequirementsFile(filePath);
+    }
+  } catch (err) {
+    const message = (err as Error).message;
+    core.warning(`Error while parsing ${filePath}: ${message}`);
+    return undefined;
+  }
+  if (uvVersion?.startsWith("==")) {
+    uvVersion = uvVersion.slice(2);
+  }
+  if (uvVersion !== undefined) {
+    core.info(`Found version for uv in ${filePath}: ${uvVersion}`);
+  }
+  return uvVersion;
+}

src/version/tool-versions-file.ts

@@ -0,0 +1,31 @@
+import fs from "node:fs";
+import * as core from "@actions/core";
+
+export function getUvVersionFromToolVersions(
+  filePath: string,
+): string | undefined {
+  if (!filePath.endsWith(".tool-versions")) {
+    return undefined;
+  }
+  const fileContents = fs.readFileSync(filePath, "utf8");
+  const lines = fileContents.split("\n");
+
+  for (const line of lines) {
+    // Skip commented lines
+    if (line.trim().startsWith("#")) {
+      continue;
+    }
+    const match = line.match(/^\s*uv\s*v?\s*(?<version>[^\s]+)\s*$/);
+    if (match) {
+      const matchedVersion = match.groups?.version.trim();
+      if (matchedVersion?.startsWith("ref")) {
+        core.warning(
+          "The ref syntax of .tool-versions is not supported. Please use a released version instead.",
+        );
+        return undefined;
+      }
+      return matchedVersion;
+    }
+  }
+  return undefined;
+}

tsconfig.json

@@ -1,12 +1,12 @@
 {
   "compilerOptions": {
-    "target": "ES2022" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
-    "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
+    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
+    "module": "nodenext" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
+    "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
     "outDir": "./lib" /* Redirect output structure to the directory. */,
     "rootDir": "./src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,
     "strict": true /* Enable all strict type-checking options. */,
-    "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
-    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    "target": "ES2022" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
   },
   "exclude": ["node_modules", "**/*.test.ts"]
 }