chore(deps): roll up dependabot updates (#903)

Rolls up the current open Dependabot npm updates:

- #848 esbuild from 0.27.5 to 0.28.0
- #847 undici from 8.0.0 to 8.3.0
- #846 ts-jest from 29.4.9 to 29.4.11
- #841 @biomejs/biome from 2.4.10 to 2.4.15, including the matching
biome.json schema URL update

Validation:

- npm run all

.agents/skills/dependabot-pr-rollup/SKILL.md

@@ -26,6 +26,7 @@ Use this skill when the user wants to:
    - Inspect `package.json` before editing.
    - Run `npm ci --ignore-scripts` before applying updates.
    - Use `npm install ... --ignore-scripts` for direct dependency changes so `package-lock.json` stays in sync.
+   - When updating `@biomejs/biome`, also update the Biome schema URL version in `biome.json` to match the installed Biome version.
 7. Run `npm run all`.
 8. If requested, commit the changed source, lockfile, and generated artifacts, then push and open a PR.
 

.github/workflows/codeql-analysis.yml

@@ -47,7 +47,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@45cbd0c69e560cd9e7cd7f8c32362050c9b7ded2 # v4.32.2
+        uses: github/codeql-action/init@7211b7c8077ea37d8641b6271f6a365a22a5fbfa # v4.36.0
         with:
           languages: ${{ matrix.language }}
           source-root: src
@@ -59,7 +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@45cbd0c69e560cd9e7cd7f8c32362050c9b7ded2 # v4.32.2
+        uses: github/codeql-action/autobuild@7211b7c8077ea37d8641b6271f6a365a22a5fbfa # v4.36.0
 
       # ℹ️ Command-line programs to run using the OS shell.
       # 📚 https://git.io/JvXDl
@@ -73,4 +73,4 @@ jobs:
       #   make release
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@45cbd0c69e560cd9e7cd7f8c32362050c9b7ded2 # v4.32.2
+        uses: github/codeql-action/analyze@7211b7c8077ea37d8641b6271f6a365a22a5fbfa # v4.36.0

.github/workflows/release-drafter.yml

@@ -19,6 +19,8 @@ jobs:
       pull-requests: read
     steps:
       - name: 🚀 Run Release Drafter
-        uses: release-drafter/release-drafter@139054aeaa9adc52ab36ddf67437541f039b88e2 # v7.1.1
+        uses: release-drafter/release-drafter@693d20e7c1ce1a81d3a41962f85914253b518449 # v7.3.1
+        with:
+          commitish: ${{ github.sha }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yml

@@ -0,0 +1,113 @@
+name: Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Release version (e.g., 8.1.0)"
+        required: true
+        type: string
+
+permissions: {}
+
+jobs:
+  validate-release:
+    name: Validate release
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Validate version and draft release
+        env:
+          GH_REPO: ${{ github.repository }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          VERSION: ${{ inputs.version }}
+          TAG: v${{ inputs.version }}
+        run: |
+          if [[ ! "$VERSION" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9.]+)?$ ]]; then
+            echo "::error::Version must match MAJOR.MINOR.PATCH (e.g., 8.1.0)"
+            exit 1
+          fi
+
+          RELEASE_JSON=$(gh release view "$TAG" --json isDraft,targetCommitish 2>&1) || {
+            echo "::error::No release found for $TAG"
+            exit 1
+          }
+
+          IS_DRAFT=$(echo "$RELEASE_JSON" | jq -r '.isDraft')
+          TARGET=$(echo "$RELEASE_JSON" | jq -r '.targetCommitish')
+
+          if [[ "$IS_DRAFT" != "true" ]]; then
+            echo "::error::Release $TAG already exists and is not a draft"
+            exit 1
+          fi
+
+          if [[ "$TARGET" != "$GITHUB_SHA" ]]; then
+            echo "::error::Draft release target ($TARGET) does not match current commit ($GITHUB_SHA)"
+            exit 1
+          fi
+
+  release-gate:
+    # N.B. This name should not change, it is used for downstream checks.
+    name: release-gate
+    needs:
+      - validate-release
+    runs-on: ubuntu-latest
+    environment:
+      name: release-gate
+    steps:
+      - run: echo "Release approved"
+
+  create-deployment:
+    name: create-deployment
+    needs:
+      - validate-release
+      - release-gate
+    runs-on: ubuntu-latest
+    environment:
+      name: release
+    steps:
+      - run: echo "Release deployment created"
+
+  release:
+    name: Release
+    needs:
+      - validate-release
+      - release-gate
+      - create-deployment
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Publish release
+        env:
+          GH_REPO: ${{ github.repository }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          VERSION: ${{ inputs.version }}
+          TAG: v${{ inputs.version }}
+        run: |
+          if [[ ! "$VERSION" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9.]+)?$ ]]; then
+            echo "::error::Version must match MAJOR.MINOR.PATCH (e.g., 8.1.0)"
+            exit 1
+          fi
+
+          RELEASE_JSON=$(gh release view "$TAG" --json isDraft,targetCommitish 2>&1) || {
+            echo "::error::No release found for $TAG"
+            exit 1
+          }
+
+          IS_DRAFT=$(echo "$RELEASE_JSON" | jq -r '.isDraft')
+          TARGET=$(echo "$RELEASE_JSON" | jq -r '.targetCommitish')
+
+          if [[ "$IS_DRAFT" != "true" ]]; then
+            echo "::error::Release $TAG already exists and is not a draft"
+            exit 1
+          fi
+
+          if [[ "$TARGET" != "$GITHUB_SHA" ]]; then
+            echo "::error::Draft release target ($TARGET) does not match current commit ($GITHUB_SHA)"
+            exit 1
+          fi
+
+          echo "Publishing draft release $TAG"
+          gh release edit "$TAG" --draft=false

.github/workflows/test.yml

@@ -25,10 +25,10 @@ jobs:
         with:
           persist-credentials: false
       - name: Actionlint
-        uses: eifinger/actionlint-action@7802e0cc3ab3f81cbffb36fb0bf1a3621d994b89 # v1.10.1
+        uses: eifinger/actionlint-action@1fc89649be682d16ec5cf65ea16e269eb88d3982 # v1.10.2
       - name: Run zizmor
-        uses: zizmorcore/zizmor-action@71321a20a9ded102f6e9ce5718a2fcec2c4f70d8 # v0.5.2
-      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
+        uses: zizmorcore/zizmor-action@5f14fd08f7cf1cb1609c1e344975f152c7ee938d # v0.5.6
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version-file: .nvmrc
           cache: npm
@@ -430,6 +430,49 @@ jobs:
           PY
         shell: bash
 
+  test-activate-environment-no-project:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+      - name: Create incompatible pyproject.toml
+        run: |
+          cat > pyproject.toml <<'EOF'
+          [project]
+          name = "test-no-project"
+          version = "0.1.0"
+
+          [dependency-groups]
+          dev = [
+              "-e file:///${PROJECT_ROOT}/projects/pkg",
+          ]
+          EOF
+        shell: bash
+      - name: Install latest version with no-project
+        id: setup-uv
+        uses: ./
+        with:
+          python-version: 3.13.1t
+          activate-environment: true
+          no-project: true
+      - name: Verify packages can be installed
+        run: uv pip install pip
+        shell: bash
+      - name: Verify output venv is set
+        run: |
+          if [ -z "$UV_VENV" ]; then
+            echo "output venv is not set"
+            exit 1
+          fi
+          if [ ! -d "$UV_VENV" ]; then
+            echo "output venv not point to a directory: $UV_VENV"
+            exit 1
+          fi
+        shell: bash
+        env:
+          UV_VENV: ${{ steps.setup-uv.outputs.venv }}
+
   test-debian-unstable:
     runs-on: ubuntu-latest
     container: debian:unstable
@@ -818,6 +861,20 @@ jobs:
             exit 1
           fi
 
+  test-download-from-astral-mirror-false:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+      - name: Install with download-from-astral-mirror disabled
+        id: setup-uv
+        uses: ./
+        with:
+          download-from-astral-mirror: false
+      - name: Verify uv is installed
+        run: uv --version
+
   test-absolute-path:
     runs-on: ubuntu-latest
     steps:
@@ -1057,6 +1114,7 @@ jobs:
       - test-python-version
       - test-activate-environment
       - test-activate-environment-custom-path
+      - test-activate-environment-no-project
       - test-debian-unstable
       - test-musl
       - test-cache-key-os-version
@@ -1075,6 +1133,7 @@ jobs:
       - test-restore-cache-restore-cache-false
       - test-no-python-version
       - test-custom-manifest-file
+      - test-download-from-astral-mirror-false
       - test-absolute-path
       - test-relative-path
       - test-cache-prune-force

.github/workflows/update-docs.yml

@@ -0,0 +1,69 @@
+name: "Update docs"
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+permissions: {}
+
+jobs:
+  update-docs:
+    runs-on: ubuntu-24.04-arm
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: true
+      - name: Get tag info
+        id: tag-info
+        run: |
+          TAG_NAME="${GITHUB_REF#refs/tags/}"
+          COMMIT_SHA=$(git rev-list -n 1 "$TAG_NAME")
+          echo "tag=$TAG_NAME" >> "$GITHUB_OUTPUT"
+          echo "sha=$COMMIT_SHA" >> "$GITHUB_OUTPUT"
+      - name: Update references in docs
+        run: |
+          OLD_REF=$(grep -oh 'astral-sh/setup-uv@[a-f0-9]\{40\} # v[0-9][^ ]*' README.md docs/*.md | head -1)
+          OLD_SHA=$(echo "$OLD_REF" | sed 's/astral-sh\/setup-uv@\([a-f0-9]*\) # .*/\1/')
+          OLD_VERSION=$(echo "$OLD_REF" | sed 's/astral-sh\/setup-uv@[a-f0-9]* # \(v[^ ]*\)/\1/')
+          echo "Replacing $OLD_SHA # $OLD_VERSION with $NEW_SHA # $NEW_VERSION"
+          find README.md docs/ -type f \( -name "*.md" \) -exec \
+            sed -i "s|$OLD_SHA # $OLD_VERSION|$NEW_SHA # $NEW_VERSION|g" {} +
+        env:
+          NEW_SHA: ${{ steps.tag-info.outputs.sha }}
+          NEW_VERSION: ${{ steps.tag-info.outputs.tag }}
+      - name: Check for changes
+        id: changes-exist
+        run: |
+          if [ -n "$(git status --porcelain)" ]; then
+              echo "changes-exist=true" >> "$GITHUB_OUTPUT"
+          else
+              echo "changes-exist=false" >> "$GITHUB_OUTPUT"
+          fi
+      - 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 "docs: update version references to $NEW_VERSION"
+          git push origin HEAD:refs/heads/main
+        env:
+          NEW_VERSION: ${{ steps.tag-info.outputs.tag }}
+      - name: Create Pull Request
+        if: ${{ steps.changes-exist.outputs.changes-exist == 'true' && steps.commit-and-push.outcome != 'success' }}
+        uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1 # v8.1.1
+        with:
+          commit-message: "docs: update version references to ${{ steps.tag-info.outputs.tag }}"
+          title: "docs: update version references to ${{ steps.tag-info.outputs.tag }}"
+          body: |
+            Update `uses: astral-sh/setup-uv@...` references in documentation to
+            `${{ steps.tag-info.outputs.sha }} # ${{ steps.tag-info.outputs.tag }}`.
+          base: main
+          labels: "automated-pr,update-docs"
+          branch: update-docs-${{ steps.tag-info.outputs.tag }}
+          delete-branch: true

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

@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           persist-credentials: true
-      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version-file: .nvmrc
           cache: npm
@@ -54,7 +54,7 @@ jobs:
 
       - name: Create Pull Request
         if: ${{ steps.changes-exist.outputs.changes-exist == 'true' && steps.commit-and-push.outcome != 'success' }}
-        uses: peter-evans/create-pull-request@c0f553fe549906ede9cf27b5156039d195d2ece0 # v8.1.0
+        uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1 # v8.1.1
         with:
           commit-message: "chore: update known checksums"
           title:

AGENTS.md

@@ -7,7 +7,7 @@ This repository is a TypeScript-based GitHub Action for installing `uv` in GitHu
   1. `npm ci --ignore-scripts`
   2. `npm run all`
 - `npm run check` uses Biome (not ESLint/Prettier) and rewrites files in place.
-- User-facing changes are usually multi-file changes. If you add or change inputs, outputs, or behavior, update `action.yml`, the implementation in `src/`, tests in `__tests__/`, relevant docs/README, and then re-package.
+- User-facing changes are usually multi-file changes. If you add or change inputs, outputs, or behavior, update `action.yml`, `action-types.yml`, the implementation in `src/`, tests in `__tests__/`, relevant docs/README, and then re-package.
 - The easiest areas to regress are version resolution and caching. When touching them, add or update tests for precedence, cache invalidation, and cross-platform path behavior.
 - Workflow edits have extra CI-only checks (`actionlint` and `zizmor`); `npm run all` does not cover them.
 - Source is authored with bundler-friendly TypeScript, but published action artifacts in `dist/` are bundled as CommonJS for maximum GitHub Actions runtime compatibility with `@actions/*` dependencies.

README.md

@@ -26,7 +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@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
 ```
 
 If you do not specify a version, this action will look for a [required-version](https://docs.astral.sh/uv/reference/settings/#required-version)
@@ -42,7 +42,7 @@ Have a look under [Advanced Configuration](#advanced-configuration) for detailed
 
 ```yaml
 - name: Install uv with all available options
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     # The version of uv to install (default: searches for version in config files, then latest)
     version: ""
@@ -62,6 +62,9 @@ Have a look under [Advanced Configuration](#advanced-configuration) for detailed
     # Custom path for the virtual environment when using activate-environment (default: .venv in the working directory)
     venv-path: ""
 
+    # Pass --no-project when creating the venv with activate-environment.
+    no-project: "false"
+
     # The directory to execute all commands in and look for files such as pyproject.toml
     working-directory: ""
 
@@ -117,8 +120,14 @@ Have a look under [Advanced Configuration](#advanced-configuration) for detailed
     # URL to a custom manifest file in the astral-sh/versions format
     manifest-file: ""
 
+    # Download uv from the Astral mirror instead of directly from GitHub Releases
+    download-from-astral-mirror: "true"
+
     # Add problem matchers
     add-problem-matchers: "true"
+
+    # Suppress info-level log output. Only warnings and errors are shown
+    quiet: "false"
 ```
 
 ### Outputs
@@ -139,7 +148,7 @@ This will override any python version specifications in `pyproject.toml` and `.p
 
 ```yaml
 - name: Install the latest version of uv and set the python version to 3.13t
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     python-version: 3.13t
 - run: uv pip install --python=3.13t pip
@@ -157,7 +166,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Install the latest version of uv and set the python version
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
         with:
           python-version: ${{ matrix.python-version }}
       - name: Test with python ${{ matrix.python-version }}
@@ -174,7 +183,7 @@ It also controls where [the venv gets created](#activate-environment), unless `v
 
 ```yaml
 - name: Install uv based on the config files in the working-directory
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     working-directory: my/subproject/dir
 ```
@@ -216,7 +225,7 @@ For example:
 - name: Checkout the repository
   uses: actions/checkout@main
 - name: Install the latest version of uv
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
 - name: Test
@@ -228,7 +237,7 @@ To install a specific version of Python, use
 
 ```yaml
 - name: Install the latest version of uv
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
 - name: Install Python 3.12
@@ -247,7 +256,7 @@ output:
   uses: actions/checkout@main
 - name: Install the default version of uv
   id: setup-uv
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
 - name: Print the installed version
   run: echo "Installed uv version is ${{ steps.setup-uv.outputs.uv-version }}"
 ```

__tests__/download/download-version.test.ts

@@ -95,6 +95,35 @@ describe("download-version", () => {
       expect(mockGetAllVersions).toHaveBeenCalledWith(undefined);
     });
 
+    it("treats == exact pins as explicit versions", async () => {
+      const version = await resolveVersion("==0.9.26", undefined);
+
+      expect(version).toBe("0.9.26");
+      expect(mockGetAllVersions).not.toHaveBeenCalled();
+      expect(mockGetLatestVersion).not.toHaveBeenCalled();
+    });
+
+    it("uses latest for minimum-only ranges when using the highest strategy", async () => {
+      mockGetLatestVersion.mockResolvedValue("0.9.26");
+
+      const version = await resolveVersion(">=0.9.0", undefined, "highest");
+
+      expect(version).toBe("0.9.26");
+      expect(mockGetLatestVersion).toHaveBeenCalledTimes(1);
+      expect(mockGetLatestVersion).toHaveBeenCalledWith(undefined);
+      expect(mockGetAllVersions).not.toHaveBeenCalled();
+    });
+
+    it("uses the lowest compatible version when requested", async () => {
+      mockGetAllVersions.mockResolvedValue(["0.9.26", "0.9.25"]);
+
+      const version = await resolveVersion("^0.9.0", undefined, "lowest");
+
+      expect(version).toBe("0.9.25");
+      expect(mockGetAllVersions).toHaveBeenCalledTimes(1);
+      expect(mockGetAllVersions).toHaveBeenCalledWith(undefined);
+    });
+
     it("uses manifest-file when provided", async () => {
       mockGetAllVersions.mockResolvedValue(["0.9.26", "0.9.25"]);
 
@@ -194,7 +223,7 @@ describe("download-version", () => {
       );
     });
 
-    it("does not rewrite non-GitHub URLs", async () => {
+    it("does not send the token to non-GitHub URLs from the default manifest", async () => {
       mockGetArtifact.mockResolvedValue({
         archiveFormat: "tar.gz",
         checksum: "abc123",
@@ -212,8 +241,30 @@ describe("download-version", () => {
       expect(mockDownloadTool).toHaveBeenCalledWith(
         "https://example.com/uv.tar.gz",
         undefined,
+        undefined,
+      );
+    });
+
+    it("does not send the token to GitHub lookalike hosts", async () => {
+      mockGetArtifact.mockResolvedValue({
+        archiveFormat: "tar.gz",
+        checksum: "abc123",
+        downloadUrl: "https://github.com.evil.test/uv.tar.gz",
+      });
+
+      await downloadVersion(
+        "unknown-linux-gnu",
+        "x86_64",
+        "0.9.26",
+        undefined,
         "token",
       );
+
+      expect(mockDownloadTool).toHaveBeenCalledWith(
+        "https://github.com.evil.test/uv.tar.gz",
+        undefined,
+        undefined,
+      );
     });
 
     it("falls back to GitHub Releases when the mirror fails", async () => {
@@ -325,6 +376,32 @@ describe("download-version", () => {
         "0.9.26",
       );
     });
+
+    it("skips the Astral mirror when downloadFromAstralMirror is false", async () => {
+      mockGetArtifact.mockResolvedValue({
+        archiveFormat: "tar.gz",
+        checksum: "abc123",
+        downloadUrl:
+          "https://github.com/astral-sh/uv/releases/download/0.9.26/uv-x86_64-unknown-linux-gnu.tar.gz",
+      });
+
+      await downloadVersion(
+        "unknown-linux-gnu",
+        "x86_64",
+        "0.9.26",
+        undefined,
+        "token",
+        undefined,
+        false,
+      );
+
+      expect(mockDownloadTool).toHaveBeenCalledWith(
+        "https://github.com/astral-sh/uv/releases/download/0.9.26/uv-x86_64-unknown-linux-gnu.tar.gz",
+        undefined,
+        "token",
+      );
+      expect(mockDownloadTool).toHaveBeenCalledTimes(1);
+    });
   });
 
   describe("rewriteToMirror", () => {

__tests__/version/requirements-file.test.ts

@@ -1,5 +1,5 @@
 import { expect, test } from "@jest/globals";
-import { getUvVersionFromFile } from "../../src/version/resolve";
+import { getUvVersionFromFile } from "../../src/version/file-parser";
 
 test("ignores dependencies starting with uv", async () => {
   const parsedVersion = getUvVersionFromFile(

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

@@ -1,5 +1,5 @@
 import { expect, test } from "@jest/globals";
-import { getUvVersionFromFile } from "../../src/version/resolve";
+import { getUvVersionFromFile } from "../../src/version/file-parser";
 
 test("ignores dependencies starting with uv", async () => {
   const parsedVersion = getUvVersionFromFile(

__tests__/version/version-request-resolver.test.ts

@@ -0,0 +1,125 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { afterEach, describe, expect, it } from "@jest/globals";
+import { resolveVersionRequest } from "../../src/version/version-request-resolver";
+
+const tempDirs: string[] = [];
+
+function createTempProject(files: Record<string, string> = {}): string {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "setup-uv-version-test-"));
+  tempDirs.push(dir);
+
+  for (const [relativePath, content] of Object.entries(files)) {
+    const filePath = path.join(dir, relativePath);
+    fs.mkdirSync(path.dirname(filePath), { recursive: true });
+    fs.writeFileSync(filePath, content);
+  }
+
+  return dir;
+}
+
+afterEach(() => {
+  for (const dir of tempDirs.splice(0)) {
+    fs.rmSync(dir, { force: true, recursive: true });
+  }
+});
+
+describe("resolveVersionRequest", () => {
+  it("prefers explicit input over version-file and workspace config", () => {
+    const workingDirectory = createTempProject({
+      ".tool-versions": "uv 0.4.0\n",
+      "pyproject.toml": `[tool.uv]\nrequired-version = "==0.5.14"\n`,
+      "uv.toml": `required-version = "==0.5.15"\n`,
+    });
+
+    const request = resolveVersionRequest({
+      version: "==0.6.0",
+      versionFile: path.join(workingDirectory, ".tool-versions"),
+      workingDirectory,
+    });
+
+    expect(request).toEqual({
+      source: "input",
+      specifier: "0.6.0",
+    });
+  });
+
+  it("uses .tool-versions when it is passed via version-file", () => {
+    const workingDirectory = createTempProject({
+      ".tool-versions": "uv 0.5.15\n",
+    });
+
+    const request = resolveVersionRequest({
+      versionFile: path.join(workingDirectory, ".tool-versions"),
+      workingDirectory,
+    });
+
+    expect(request).toEqual({
+      format: ".tool-versions",
+      source: "version-file",
+      sourcePath: path.join(workingDirectory, ".tool-versions"),
+      specifier: "0.5.15",
+    });
+  });
+
+  it("uses requirements.txt when it is passed via version-file", () => {
+    const workingDirectory = createTempProject({
+      "requirements.txt": "uv==0.6.17\nuvicorn==0.35.0\n",
+    });
+
+    const request = resolveVersionRequest({
+      versionFile: path.join(workingDirectory, "requirements.txt"),
+      workingDirectory,
+    });
+
+    expect(request).toEqual({
+      format: "requirements",
+      source: "version-file",
+      sourcePath: path.join(workingDirectory, "requirements.txt"),
+      specifier: "0.6.17",
+    });
+  });
+
+  it("prefers uv.toml over pyproject.toml during workspace discovery", () => {
+    const workingDirectory = createTempProject({
+      "pyproject.toml": `[tool.uv]\nrequired-version = "==0.5.14"\n`,
+      "uv.toml": `required-version = "==0.5.15"\n`,
+    });
+
+    const request = resolveVersionRequest({ workingDirectory });
+
+    expect(request).toEqual({
+      format: "uv.toml",
+      source: "uv.toml",
+      sourcePath: path.join(workingDirectory, "uv.toml"),
+      specifier: "0.5.15",
+    });
+  });
+
+  it("falls back to latest when no version source is found", () => {
+    const workingDirectory = createTempProject({});
+
+    const request = resolveVersionRequest({ workingDirectory });
+
+    expect(request).toEqual({
+      source: "default",
+      specifier: "latest",
+    });
+  });
+
+  it("throws when version-file does not resolve a version", () => {
+    const workingDirectory = createTempProject({
+      "requirements.txt": "uvicorn==0.35.0\n",
+    });
+
+    expect(() =>
+      resolveVersionRequest({
+        versionFile: path.join(workingDirectory, "requirements.txt"),
+        workingDirectory,
+      }),
+    ).toThrow(
+      `Could not determine uv version from file: ${path.join(workingDirectory, "requirements.txt")}`,
+    );
+  });
+});

action-types.yml

@@ -11,6 +11,8 @@ inputs:
     type: boolean
   venv-path:
     type: string
+  no-project:
+    type: boolean
   working-directory:
     type: string
   checksum:
@@ -50,8 +52,12 @@ inputs:
     type: string
   manifest-file:
     type: string
+  download-from-astral-mirror:
+    type: boolean
   add-problem-matchers:
     type: boolean
+  quiet:
+    type: boolean
   resolution-strategy:
     type: enum
     allowed-values:

action.yml

@@ -18,6 +18,9 @@ inputs:
   venv-path:
     description: "Custom path for the virtual environment when using activate-environment. Defaults to '.venv' in the working directory."
     default: ""
+  no-project:
+    description: "Pass --no-project when creating the venv with activate-environment."
+    default: "false"
   working-directory:
     description: "The directory to execute all commands in and look for files such as pyproject.toml"
     default: ${{ github.workspace }}
@@ -77,9 +80,15 @@ inputs:
   manifest-file:
     description: "URL to a custom manifest file in the astral-sh/versions format."
     required: false
+  download-from-astral-mirror:
+    description: "Download uv from the Astral mirror instead of directly from GitHub Releases."
+    default: "true"
   add-problem-matchers:
     description: "Add problem matchers."
     default: "true"
+  quiet:
+    description: "Suppress info-level log output. Only warnings and errors are shown."
+    default: "false"
   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"

biome.json

@@ -1,5 +1,5 @@
 {
-  "$schema": "https://biomejs.dev/schemas/2.4.7/schema.json",
+  "$schema": "https://biomejs.dev/schemas/2.4.15/schema.json",
   "assist": {
     "actions": {
       "source": {

dist/save-cache/index.cjs

@@ -133,7 +133,7 @@ var require_tunnel = __commonJS({
         connectOptions.headers = connectOptions.headers || {};
         connectOptions.headers["Proxy-Authorization"] = "Basic " + new Buffer(connectOptions.proxyAuth).toString("base64");
       }
-      debug2("making CONNECT request");
+      debug3("making CONNECT request");
       var connectReq = self2.request(connectOptions);
       connectReq.useChunkedEncodingByDefault = false;
       connectReq.once("response", onResponse);
@@ -153,7 +153,7 @@ var require_tunnel = __commonJS({
         connectReq.removeAllListeners();
         socket.removeAllListeners();
         if (res.statusCode !== 200) {
-          debug2(
+          debug3(
             "tunneling socket could not be established, statusCode=%d",
             res.statusCode
           );
@@ -165,7 +165,7 @@ var require_tunnel = __commonJS({
           return;
         }
         if (head.length > 0) {
-          debug2("got illegal response body from proxy");
+          debug3("got illegal response body from proxy");
           socket.destroy();
           var error2 = new Error("got illegal response body from proxy");
           error2.code = "ECONNRESET";
@@ -173,13 +173,13 @@ var require_tunnel = __commonJS({
           self2.removeSocket(placeholder);
           return;
         }
-        debug2("tunneling connection has established");
+        debug3("tunneling connection has established");
         self2.sockets[self2.sockets.indexOf(placeholder)] = socket;
         return cb(socket);
       }
       function onError(cause) {
         connectReq.removeAllListeners();
-        debug2(
+        debug3(
           "tunneling socket could not be established, cause=%s\n",
           cause.message,
           cause.stack
@@ -241,9 +241,9 @@ var require_tunnel = __commonJS({
       }
       return target;
     }
-    var debug2;
+    var debug3;
     if (process.env.NODE_DEBUG && /\btunnel\b/.test(process.env.NODE_DEBUG)) {
-      debug2 = function() {
+      debug3 = function() {
         var args = Array.prototype.slice.call(arguments);
         if (typeof args[0] === "string") {
           args[0] = "TUNNEL: " + args[0];
@@ -253,10 +253,10 @@ var require_tunnel = __commonJS({
         console.error.apply(console, args);
       };
     } else {
-      debug2 = function() {
+      debug3 = function() {
       };
     }
-    exports2.debug = debug2;
+    exports2.debug = debug3;
   }
 });
 
@@ -18936,7 +18936,7 @@ var require_minimatch = __commonJS({
       }
       this.parseNegate();
       var set = this.globSet = this.braceExpand();
-      if (options.debug) this.debug = function debug2() {
+      if (options.debug) this.debug = function debug3() {
         console.error.apply(console, arguments);
       };
       this.debug(this.pattern, set);
@@ -19414,9 +19414,9 @@ var require_constants6 = __commonJS({
 var require_debug = __commonJS({
   "node_modules/@actions/cache/node_modules/semver/internal/debug.js"(exports2, module2) {
     "use strict";
-    var debug2 = typeof process === "object" && process.env && process.env.NODE_DEBUG && /\bsemver\b/i.test(process.env.NODE_DEBUG) ? (...args) => console.error("SEMVER", ...args) : () => {
+    var debug3 = typeof process === "object" && process.env && process.env.NODE_DEBUG && /\bsemver\b/i.test(process.env.NODE_DEBUG) ? (...args) => console.error("SEMVER", ...args) : () => {
     };
-    module2.exports = debug2;
+    module2.exports = debug3;
   }
 });
 
@@ -19429,7 +19429,7 @@ var require_re = __commonJS({
       MAX_SAFE_BUILD_LENGTH,
       MAX_LENGTH
     } = require_constants6();
-    var debug2 = require_debug();
+    var debug3 = require_debug();
     exports2 = module2.exports = {};
     var re = exports2.re = [];
     var safeRe = exports2.safeRe = [];
@@ -19452,7 +19452,7 @@ var require_re = __commonJS({
     var createToken = (name, value, isGlobal) => {
       const safe = makeSafeRegex(value);
       const index = R++;
-      debug2(name, index, value);
+      debug3(name, index, value);
       t[name] = index;
       src[index] = value;
       safeSrc[index] = safe;
@@ -19556,7 +19556,7 @@ var require_identifiers = __commonJS({
 var require_semver = __commonJS({
   "node_modules/@actions/cache/node_modules/semver/classes/semver.js"(exports2, module2) {
     "use strict";
-    var debug2 = require_debug();
+    var debug3 = require_debug();
     var { MAX_LENGTH, MAX_SAFE_INTEGER } = require_constants6();
     var { safeRe: re, t } = require_re();
     var parseOptions = require_parse_options();
@@ -19578,7 +19578,7 @@ var require_semver = __commonJS({
             `version is longer than ${MAX_LENGTH} characters`
           );
         }
-        debug2("SemVer", version3, options);
+        debug3("SemVer", version3, options);
         this.options = options;
         this.loose = !!options.loose;
         this.includePrerelease = !!options.includePrerelease;
@@ -19626,7 +19626,7 @@ var require_semver = __commonJS({
         return this.version;
       }
       compare(other) {
-        debug2("SemVer.compare", this.version, this.options, other);
+        debug3("SemVer.compare", this.version, this.options, other);
         if (!(other instanceof _SemVer)) {
           if (typeof other === "string" && other === this.version) {
             return 0;
@@ -19677,7 +19677,7 @@ var require_semver = __commonJS({
         do {
           const a = this.prerelease[i];
           const b = other.prerelease[i];
-          debug2("prerelease compare", i, a, b);
+          debug3("prerelease compare", i, a, b);
           if (a === void 0 && b === void 0) {
             return 0;
           } else if (b === void 0) {
@@ -19699,7 +19699,7 @@ var require_semver = __commonJS({
         do {
           const a = this.build[i];
           const b = other.build[i];
-          debug2("build compare", i, a, b);
+          debug3("build compare", i, a, b);
           if (a === void 0 && b === void 0) {
             return 0;
           } else if (b === void 0) {
@@ -20327,21 +20327,21 @@ var require_range = __commonJS({
         const loose = this.options.loose;
         const hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE];
         range2 = range2.replace(hr, hyphenReplace(this.options.includePrerelease));
-        debug2("hyphen replace", range2);
+        debug3("hyphen replace", range2);
         range2 = range2.replace(re[t.COMPARATORTRIM], comparatorTrimReplace);
-        debug2("comparator trim", range2);
+        debug3("comparator trim", range2);
         range2 = range2.replace(re[t.TILDETRIM], tildeTrimReplace);
-        debug2("tilde trim", range2);
+        debug3("tilde trim", range2);
         range2 = range2.replace(re[t.CARETTRIM], caretTrimReplace);
-        debug2("caret trim", range2);
+        debug3("caret trim", range2);
         let rangeList = range2.split(" ").map((comp26) => parseComparator(comp26, this.options)).join(" ").split(/\s+/).map((comp26) => replaceGTE0(comp26, this.options));
         if (loose) {
           rangeList = rangeList.filter((comp26) => {
-            debug2("loose invalid filter", comp26, this.options);
+            debug3("loose invalid filter", comp26, this.options);
             return !!comp26.match(re[t.COMPARATORLOOSE]);
           });
         }
-        debug2("range list", rangeList);
+        debug3("range list", rangeList);
         const rangeMap = /* @__PURE__ */ new Map();
         const comparators = rangeList.map((comp26) => new Comparator(comp26, this.options));
         for (const comp26 of comparators) {
@@ -20396,7 +20396,7 @@ var require_range = __commonJS({
     var cache = new LRU();
     var parseOptions = require_parse_options();
     var Comparator = require_comparator();
-    var debug2 = require_debug();
+    var debug3 = require_debug();
     var SemVer = require_semver();
     var {
       safeRe: re,
@@ -20422,15 +20422,15 @@ var require_range = __commonJS({
     };
     var parseComparator = (comp26, options) => {
       comp26 = comp26.replace(re[t.BUILD], "");
-      debug2("comp", comp26, options);
+      debug3("comp", comp26, options);
       comp26 = replaceCarets(comp26, options);
-      debug2("caret", comp26);
+      debug3("caret", comp26);
       comp26 = replaceTildes(comp26, options);
-      debug2("tildes", comp26);
+      debug3("tildes", comp26);
       comp26 = replaceXRanges(comp26, options);
-      debug2("xrange", comp26);
+      debug3("xrange", comp26);
       comp26 = replaceStars(comp26, options);
-      debug2("stars", comp26);
+      debug3("stars", comp26);
       return comp26;
     };
     var isX = (id) => !id || id.toLowerCase() === "x" || id === "*";
@@ -20440,7 +20440,7 @@ var require_range = __commonJS({
     var replaceTilde = (comp26, options) => {
       const r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE];
       return comp26.replace(r, (_, M, m, p, pr) => {
-        debug2("tilde", comp26, _, M, m, p, pr);
+        debug3("tilde", comp26, _, M, m, p, pr);
         let ret;
         if (isX(M)) {
           ret = "";
@@ -20449,12 +20449,12 @@ var require_range = __commonJS({
         } else if (isX(p)) {
           ret = `>=${M}.${m}.0 <${M}.${+m + 1}.0-0`;
         } else if (pr) {
-          debug2("replaceTilde pr", pr);
+          debug3("replaceTilde pr", pr);
           ret = `>=${M}.${m}.${p}-${pr} <${M}.${+m + 1}.0-0`;
         } else {
           ret = `>=${M}.${m}.${p} <${M}.${+m + 1}.0-0`;
         }
-        debug2("tilde return", ret);
+        debug3("tilde return", ret);
         return ret;
       });
     };
@@ -20462,11 +20462,11 @@ var require_range = __commonJS({
       return comp26.trim().split(/\s+/).map((c) => replaceCaret(c, options)).join(" ");
     };
     var replaceCaret = (comp26, options) => {
-      debug2("caret", comp26, options);
+      debug3("caret", comp26, options);
       const r = options.loose ? re[t.CARETLOOSE] : re[t.CARET];
       const z = options.includePrerelease ? "-0" : "";
       return comp26.replace(r, (_, M, m, p, pr) => {
-        debug2("caret", comp26, _, M, m, p, pr);
+        debug3("caret", comp26, _, M, m, p, pr);
         let ret;
         if (isX(M)) {
           ret = "";
@@ -20479,7 +20479,7 @@ var require_range = __commonJS({
             ret = `>=${M}.${m}.0${z} <${+M + 1}.0.0-0`;
           }
         } else if (pr) {
-          debug2("replaceCaret pr", pr);
+          debug3("replaceCaret pr", pr);
           if (M === "0") {
             if (m === "0") {
               ret = `>=${M}.${m}.${p}-${pr} <${M}.${m}.${+p + 1}-0`;
@@ -20490,7 +20490,7 @@ var require_range = __commonJS({
             ret = `>=${M}.${m}.${p}-${pr} <${+M + 1}.0.0-0`;
           }
         } else {
-          debug2("no pr");
+          debug3("no pr");
           if (M === "0") {
             if (m === "0") {
               ret = `>=${M}.${m}.${p}${z} <${M}.${m}.${+p + 1}-0`;
@@ -20501,19 +20501,19 @@ var require_range = __commonJS({
             ret = `>=${M}.${m}.${p} <${+M + 1}.0.0-0`;
           }
         }
-        debug2("caret return", ret);
+        debug3("caret return", ret);
         return ret;
       });
     };
     var replaceXRanges = (comp26, options) => {
-      debug2("replaceXRanges", comp26, options);
+      debug3("replaceXRanges", comp26, options);
       return comp26.split(/\s+/).map((c) => replaceXRange(c, options)).join(" ");
     };
     var replaceXRange = (comp26, options) => {
       comp26 = comp26.trim();
       const r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE];
       return comp26.replace(r, (ret, gtlt, M, m, p, pr) => {
-        debug2("xRange", comp26, ret, gtlt, M, m, p, pr);
+        debug3("xRange", comp26, ret, gtlt, M, m, p, pr);
         const xM = isX(M);
         const xm = xM || isX(m);
         const xp = xm || isX(p);
@@ -20560,16 +20560,16 @@ var require_range = __commonJS({
         } else if (xp) {
           ret = `>=${M}.${m}.0${pr} <${M}.${+m + 1}.0-0`;
         }
-        debug2("xRange return", ret);
+        debug3("xRange return", ret);
         return ret;
       });
     };
     var replaceStars = (comp26, options) => {
-      debug2("replaceStars", comp26, options);
+      debug3("replaceStars", comp26, options);
       return comp26.trim().replace(re[t.STAR], "");
     };
     var replaceGTE0 = (comp26, options) => {
-      debug2("replaceGTE0", comp26, options);
+      debug3("replaceGTE0", comp26, options);
       return comp26.trim().replace(re[options.includePrerelease ? t.GTE0PRE : t.GTE0], "");
     };
     var hyphenReplace = (incPr) => ($0, from, fM, fm, fp, fpr, fb, to, tM, tm, tp, tpr) => {
@@ -20607,7 +20607,7 @@ var require_range = __commonJS({
       }
       if (version3.prerelease.length && !options.includePrerelease) {
         for (let i = 0; i < set.length; i++) {
-          debug2(set[i].semver);
+          debug3(set[i].semver);
           if (set[i].semver === Comparator.ANY) {
             continue;
           }
@@ -20644,7 +20644,7 @@ var require_comparator = __commonJS({
           }
         }
         comp26 = comp26.trim().split(/\s+/).join(" ");
-        debug2("comparator", comp26, options);
+        debug3("comparator", comp26, options);
         this.options = options;
         this.loose = !!options.loose;
         this.parse(comp26);
@@ -20653,7 +20653,7 @@ var require_comparator = __commonJS({
         } else {
           this.value = this.operator + this.semver.version;
         }
-        debug2("comp", this);
+        debug3("comp", this);
       }
       parse(comp26) {
         const r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR];
@@ -20675,7 +20675,7 @@ var require_comparator = __commonJS({
         return this.value;
       }
       test(version3) {
-        debug2("Comparator.test", version3, this.options.loose);
+        debug3("Comparator.test", version3, this.options.loose);
         if (this.semver === ANY || version3 === ANY) {
           return true;
         }
@@ -20732,7 +20732,7 @@ var require_comparator = __commonJS({
     var parseOptions = require_parse_options();
     var { safeRe: re, t } = require_re();
     var cmp = require_cmp();
-    var debug2 = require_debug();
+    var debug3 = require_debug();
     var SemVer = require_semver();
     var Range = require_range();
   }
@@ -21456,11 +21456,11 @@ var require_common = __commonJS({
         let enableOverride = null;
         let namespacesCache;
         let enabledCache;
-        function debug2(...args) {
-          if (!debug2.enabled) {
+        function debug3(...args) {
+          if (!debug3.enabled) {
             return;
           }
-          const self2 = debug2;
+          const self2 = debug3;
           const curr = Number(/* @__PURE__ */ new Date());
           const ms = curr - (prevTime || curr);
           self2.diff = ms;
@@ -21490,12 +21490,12 @@ var require_common = __commonJS({
           const logFn = self2.log || createDebug.log;
           logFn.apply(self2, args);
         }
-        debug2.namespace = namespace;
-        debug2.useColors = createDebug.useColors();
-        debug2.color = createDebug.selectColor(namespace);
-        debug2.extend = extend2;
-        debug2.destroy = createDebug.destroy;
-        Object.defineProperty(debug2, "enabled", {
+        debug3.namespace = namespace;
+        debug3.useColors = createDebug.useColors();
+        debug3.color = createDebug.selectColor(namespace);
+        debug3.extend = extend2;
+        debug3.destroy = createDebug.destroy;
+        Object.defineProperty(debug3, "enabled", {
           enumerable: true,
           configurable: false,
           get: () => {
@@ -21513,9 +21513,9 @@ var require_common = __commonJS({
           }
         });
         if (typeof createDebug.init === "function") {
-          createDebug.init(debug2);
+          createDebug.init(debug3);
         }
-        return debug2;
+        return debug3;
       }
       function extend2(namespace, delimiter3) {
         const newDebug = createDebug(this.namespace + (typeof delimiter3 === "undefined" ? ":" : delimiter3) + namespace);
@@ -22025,11 +22025,11 @@ var require_node = __commonJS({
     function load() {
       return process.env.DEBUG;
     }
-    function init(debug2) {
-      debug2.inspectOpts = {};
+    function init(debug3) {
+      debug3.inspectOpts = {};
       const keys = Object.keys(exports2.inspectOpts);
       for (let i = 0; i < keys.length; i++) {
-        debug2.inspectOpts[keys[i]] = exports2.inspectOpts[keys[i]];
+        debug3.inspectOpts[keys[i]] = exports2.inspectOpts[keys[i]];
       }
     }
     module2.exports = require_common()(exports2);
@@ -22292,7 +22292,7 @@ var require_parse_proxy_response = __commonJS({
     Object.defineProperty(exports2, "__esModule", { value: true });
     exports2.parseProxyResponse = void 0;
     var debug_1 = __importDefault(require_src());
-    var debug2 = (0, debug_1.default)("https-proxy-agent:parse-proxy-response");
+    var debug3 = (0, debug_1.default)("https-proxy-agent:parse-proxy-response");
     function parseProxyResponse(socket) {
       return new Promise((resolve2, reject) => {
         let buffersLength = 0;
@@ -22311,12 +22311,12 @@ var require_parse_proxy_response = __commonJS({
         }
         function onend() {
           cleanup();
-          debug2("onend");
+          debug3("onend");
           reject(new Error("Proxy connection ended before receiving CONNECT response"));
         }
         function onerror(err) {
           cleanup();
-          debug2("onerror %o", err);
+          debug3("onerror %o", err);
           reject(err);
         }
         function ondata(b) {
@@ -22325,7 +22325,7 @@ var require_parse_proxy_response = __commonJS({
           const buffered = Buffer.concat(buffers, buffersLength);
           const endOfHeaders = buffered.indexOf("\r\n\r\n");
           if (endOfHeaders === -1) {
-            debug2("have not received end of HTTP headers yet...");
+            debug3("have not received end of HTTP headers yet...");
             read();
             return;
           }
@@ -22358,7 +22358,7 @@ var require_parse_proxy_response = __commonJS({
               headers[key] = value;
             }
           }
-          debug2("got proxy server response: %o %o", firstLine, headers);
+          debug3("got proxy server response: %o %o", firstLine, headers);
           cleanup();
           resolve2({
             connect: {
@@ -22421,7 +22421,7 @@ var require_dist2 = __commonJS({
     var agent_base_1 = require_dist();
     var url_1 = require("url");
     var parse_proxy_response_1 = require_parse_proxy_response();
-    var debug2 = (0, debug_1.default)("https-proxy-agent");
+    var debug3 = (0, debug_1.default)("https-proxy-agent");
     var setServernameFromNonIpHost = (options) => {
       if (options.servername === void 0 && options.host && !net.isIP(options.host)) {
         return {
@@ -22437,7 +22437,7 @@ var require_dist2 = __commonJS({
         this.options = { path: void 0 };
         this.proxy = typeof proxy === "string" ? new url_1.URL(proxy) : proxy;
         this.proxyHeaders = opts?.headers ?? {};
-        debug2("Creating new HttpsProxyAgent instance: %o", this.proxy.href);
+        debug3("Creating new HttpsProxyAgent instance: %o", this.proxy.href);
         const host = (this.proxy.hostname || this.proxy.host).replace(/^\[|\]$/g, "");
         const port = this.proxy.port ? parseInt(this.proxy.port, 10) : this.proxy.protocol === "https:" ? 443 : 80;
         this.connectOpts = {
@@ -22459,10 +22459,10 @@ var require_dist2 = __commonJS({
         }
         let socket;
         if (proxy.protocol === "https:") {
-          debug2("Creating `tls.Socket`: %o", this.connectOpts);
+          debug3("Creating `tls.Socket`: %o", this.connectOpts);
           socket = tls.connect(setServernameFromNonIpHost(this.connectOpts));
         } else {
-          debug2("Creating `net.Socket`: %o", this.connectOpts);
+          debug3("Creating `net.Socket`: %o", this.connectOpts);
           socket = net.connect(this.connectOpts);
         }
         const headers = typeof this.proxyHeaders === "function" ? this.proxyHeaders() : { ...this.proxyHeaders };
@@ -22490,7 +22490,7 @@ var require_dist2 = __commonJS({
         if (connect.statusCode === 200) {
           req.once("socket", resume);
           if (opts.secureEndpoint) {
-            debug2("Upgrading socket connection to TLS");
+            debug3("Upgrading socket connection to TLS");
             return tls.connect({
               ...omit(setServernameFromNonIpHost(opts), "host", "path", "port"),
               socket
@@ -22502,7 +22502,7 @@ var require_dist2 = __commonJS({
         const fakeSocket = new net.Socket({ writable: false });
         fakeSocket.readable = true;
         req.once("socket", (s) => {
-          debug2("Replaying proxy buffer for failed request");
+          debug3("Replaying proxy buffer for failed request");
           (0, assert_1.default)(s.listenerCount("data") > 0);
           s.push(buffered);
           s.push(null);
@@ -22570,13 +22570,13 @@ var require_dist3 = __commonJS({
     var events_1 = require("events");
     var agent_base_1 = require_dist();
     var url_1 = require("url");
-    var debug2 = (0, debug_1.default)("http-proxy-agent");
+    var debug3 = (0, debug_1.default)("http-proxy-agent");
     var HttpProxyAgent2 = class extends agent_base_1.Agent {
       constructor(proxy, opts) {
         super(opts);
         this.proxy = typeof proxy === "string" ? new url_1.URL(proxy) : proxy;
         this.proxyHeaders = opts?.headers ?? {};
-        debug2("Creating new HttpProxyAgent instance: %o", this.proxy.href);
+        debug3("Creating new HttpProxyAgent instance: %o", this.proxy.href);
         const host = (this.proxy.hostname || this.proxy.host).replace(/^\[|\]$/g, "");
         const port = this.proxy.port ? parseInt(this.proxy.port, 10) : this.proxy.protocol === "https:" ? 443 : 80;
         this.connectOpts = {
@@ -22622,21 +22622,21 @@ var require_dist3 = __commonJS({
         }
         let first;
         let endOfHeaders;
-        debug2("Regenerating stored HTTP header string for request");
+        debug3("Regenerating stored HTTP header string for request");
         req._implicitHeader();
         if (req.outputData && req.outputData.length > 0) {
-          debug2("Patching connection write() output buffer with updated header");
+          debug3("Patching connection write() output buffer with updated header");
           first = req.outputData[0].data;
           endOfHeaders = first.indexOf("\r\n\r\n") + 4;
           req.outputData[0].data = req._header + first.substring(endOfHeaders);
-          debug2("Output buffer: %o", req.outputData[0].data);
+          debug3("Output buffer: %o", req.outputData[0].data);
         }
         let socket;
         if (this.proxy.protocol === "https:") {
-          debug2("Creating `tls.Socket`: %o", this.connectOpts);
+          debug3("Creating `tls.Socket`: %o", this.connectOpts);
           socket = tls.connect(this.connectOpts);
         } else {
-          debug2("Creating `net.Socket`: %o", this.connectOpts);
+          debug3("Creating `net.Socket`: %o", this.connectOpts);
           socket = net.connect(this.connectOpts);
         }
         await (0, events_1.once)(socket, "connect");
@@ -24039,9 +24039,9 @@ var require_reflection_type_check = __commonJS({
     var reflection_info_1 = require_reflection_info();
     var oneof_1 = require_oneof();
     var ReflectionTypeCheck = class {
-      constructor(info2) {
+      constructor(info3) {
         var _a;
-        this.fields = (_a = info2.fields) !== null && _a !== void 0 ? _a : [];
+        this.fields = (_a = info3.fields) !== null && _a !== void 0 ? _a : [];
       }
       prepare() {
         if (this.data)
@@ -24287,8 +24287,8 @@ var require_reflection_json_reader = __commonJS({
     var assert_1 = require_assert();
     var reflection_long_convert_1 = require_reflection_long_convert();
     var ReflectionJsonReader = class {
-      constructor(info2) {
-        this.info = info2;
+      constructor(info3) {
+        this.info = info3;
       }
       prepare() {
         var _a;
@@ -24584,9 +24584,9 @@ var require_reflection_json_writer = __commonJS({
     var reflection_info_1 = require_reflection_info();
     var assert_1 = require_assert();
     var ReflectionJsonWriter = class {
-      constructor(info2) {
+      constructor(info3) {
         var _a;
-        this.fields = (_a = info2.fields) !== null && _a !== void 0 ? _a : [];
+        this.fields = (_a = info3.fields) !== null && _a !== void 0 ? _a : [];
       }
       /**
        * Converts the message to a JSON object, based on the field descriptors.
@@ -24839,8 +24839,8 @@ var require_reflection_binary_reader = __commonJS({
     var reflection_long_convert_1 = require_reflection_long_convert();
     var reflection_scalar_default_1 = require_reflection_scalar_default();
     var ReflectionBinaryReader = class {
-      constructor(info2) {
-        this.info = info2;
+      constructor(info3) {
+        this.info = info3;
       }
       prepare() {
         var _a;
@@ -25013,8 +25013,8 @@ var require_reflection_binary_writer = __commonJS({
     var assert_1 = require_assert();
     var pb_long_1 = require_pb_long();
     var ReflectionBinaryWriter = class {
-      constructor(info2) {
-        this.info = info2;
+      constructor(info3) {
+        this.info = info3;
       }
       prepare() {
         if (!this.fields) {
@@ -25264,9 +25264,9 @@ var require_reflection_merge_partial = __commonJS({
     "use strict";
     Object.defineProperty(exports2, "__esModule", { value: true });
     exports2.reflectionMergePartial = void 0;
-    function reflectionMergePartial4(info2, target, source) {
+    function reflectionMergePartial4(info3, target, source) {
       let fieldValue, input = source, output;
-      for (let field of info2.fields) {
+      for (let field of info3.fields) {
         let name = field.localName;
         if (field.oneof) {
           const group = input[field.oneof];
@@ -25335,12 +25335,12 @@ var require_reflection_equals = __commonJS({
     Object.defineProperty(exports2, "__esModule", { value: true });
     exports2.reflectionEquals = void 0;
     var reflection_info_1 = require_reflection_info();
-    function reflectionEquals(info2, a, b) {
+    function reflectionEquals(info3, a, b) {
       if (a === b)
         return true;
       if (!a || !b)
         return false;
-      for (let field of info2.fields) {
+      for (let field of info3.fields) {
         let localName = field.localName;
         let val_a = field.oneof ? a[field.oneof][localName] : a[localName];
         let val_b = field.oneof ? b[field.oneof][localName] : b[localName];
@@ -28045,12 +28045,12 @@ var HttpClient = class {
         throw new Error("Client has already been disposed.");
       }
       const parsedUrl = new URL(requestUrl);
-      let info2 = this._prepareRequest(verb, parsedUrl, headers);
+      let info3 = this._prepareRequest(verb, parsedUrl, headers);
       const maxTries = this._allowRetries && RetryableHttpVerbs.includes(verb) ? this._maxRetries + 1 : 1;
       let numTries = 0;
       let response;
       do {
-        response = yield this.requestRaw(info2, data);
+        response = yield this.requestRaw(info3, data);
         if (response && response.message && response.message.statusCode === HttpCodes.Unauthorized) {
           let authenticationHandler;
           for (const handler of this.handlers) {
@@ -28060,7 +28060,7 @@ var HttpClient = class {
             }
           }
           if (authenticationHandler) {
-            return authenticationHandler.handleAuthentication(this, info2, data);
+            return authenticationHandler.handleAuthentication(this, info3, data);
           } else {
             return response;
           }
@@ -28083,8 +28083,8 @@ var HttpClient = class {
               }
             }
           }
-          info2 = this._prepareRequest(verb, parsedRedirectUrl, headers);
-          response = yield this.requestRaw(info2, data);
+          info3 = this._prepareRequest(verb, parsedRedirectUrl, headers);
+          response = yield this.requestRaw(info3, data);
           redirectsRemaining--;
         }
         if (!response.message.statusCode || !HttpResponseRetryCodes.includes(response.message.statusCode)) {
@@ -28113,7 +28113,7 @@ var HttpClient = class {
    * @param info
    * @param data
    */
-  requestRaw(info2, data) {
+  requestRaw(info3, data) {
     return __awaiter(this, void 0, void 0, function* () {
       return new Promise((resolve2, reject) => {
         function callbackForResult(err, res) {
@@ -28125,7 +28125,7 @@ var HttpClient = class {
             resolve2(res);
           }
         }
-        this.requestRawWithCallback(info2, data, callbackForResult);
+        this.requestRawWithCallback(info3, data, callbackForResult);
       });
     });
   }
@@ -28135,12 +28135,12 @@ var HttpClient = class {
    * @param data
    * @param onResult
    */
-  requestRawWithCallback(info2, data, onResult) {
+  requestRawWithCallback(info3, data, onResult) {
     if (typeof data === "string") {
-      if (!info2.options.headers) {
-        info2.options.headers = {};
+      if (!info3.options.headers) {
+        info3.options.headers = {};
       }
-      info2.options.headers["Content-Length"] = Buffer.byteLength(data, "utf8");
+      info3.options.headers["Content-Length"] = Buffer.byteLength(data, "utf8");
     }
     let callbackCalled = false;
     function handleResult(err, res) {
@@ -28149,7 +28149,7 @@ var HttpClient = class {
         onResult(err, res);
       }
     }
-    const req = info2.httpModule.request(info2.options, (msg) => {
+    const req = info3.httpModule.request(info3.options, (msg) => {
       const res = new HttpClientResponse(msg);
       handleResult(void 0, res);
     });
@@ -28161,7 +28161,7 @@ var HttpClient = class {
       if (socket) {
         socket.end();
       }
-      handleResult(new Error(`Request timeout: ${info2.options.path}`));
+      handleResult(new Error(`Request timeout: ${info3.options.path}`));
     });
     req.on("error", function(err) {
       handleResult(err);
@@ -28197,27 +28197,27 @@ var HttpClient = class {
     return this._getProxyAgentDispatcher(parsedUrl, proxyUrl);
   }
   _prepareRequest(method, requestUrl, headers) {
-    const info2 = {};
-    info2.parsedUrl = requestUrl;
-    const usingSsl = info2.parsedUrl.protocol === "https:";
-    info2.httpModule = usingSsl ? https : http;
+    const info3 = {};
+    info3.parsedUrl = requestUrl;
+    const usingSsl = info3.parsedUrl.protocol === "https:";
+    info3.httpModule = usingSsl ? https : http;
     const defaultPort = usingSsl ? 443 : 80;
-    info2.options = {};
-    info2.options.host = info2.parsedUrl.hostname;
-    info2.options.port = info2.parsedUrl.port ? parseInt(info2.parsedUrl.port) : defaultPort;
-    info2.options.path = (info2.parsedUrl.pathname || "") + (info2.parsedUrl.search || "");
-    info2.options.method = method;
-    info2.options.headers = this._mergeHeaders(headers);
+    info3.options = {};
+    info3.options.host = info3.parsedUrl.hostname;
+    info3.options.port = info3.parsedUrl.port ? parseInt(info3.parsedUrl.port) : defaultPort;
+    info3.options.path = (info3.parsedUrl.pathname || "") + (info3.parsedUrl.search || "");
+    info3.options.method = method;
+    info3.options.headers = this._mergeHeaders(headers);
     if (this.userAgent != null) {
-      info2.options.headers["user-agent"] = this.userAgent;
+      info3.options.headers["user-agent"] = this.userAgent;
     }
-    info2.options.agent = this._getAgent(info2.parsedUrl);
+    info3.options.agent = this._getAgent(info3.parsedUrl);
     if (this.handlers) {
       for (const handler of this.handlers) {
-        handler.prepareRequest(info2.options);
+        handler.prepareRequest(info3.options);
       }
     }
-    return info2;
+    return info3;
   }
   _mergeHeaders(headers) {
     if (this.requestOptions && this.requestOptions.headers) {
@@ -30601,14 +30601,14 @@ function disable() {
   return result;
 }
 function createDebugger(namespace) {
-  const newDebugger = Object.assign(debug2, {
+  const newDebugger = Object.assign(debug3, {
     enabled: enabled(namespace),
     destroy,
     log: debugObj.log,
     namespace,
     extend
   });
-  function debug2(...args) {
+  function debug3(...args) {
     if (!newDebugger.enabled) {
       return;
     }
@@ -34098,12 +34098,12 @@ function getOperationRequestInfo(request) {
   if (hasOriginalRequest(request)) {
     return getOperationRequestInfo(request[originalRequestSymbol]);
   }
-  let info2 = state2.operationRequestMap.get(request);
-  if (!info2) {
-    info2 = {};
-    state2.operationRequestMap.set(request, info2);
+  let info3 = state2.operationRequestMap.get(request);
+  if (!info3) {
+    info3 = {};
+    state2.operationRequestMap.set(request, info3);
   }
-  return info2;
+  return info3;
 }
 
 // node_modules/@azure/core-client/dist/esm/deserializationPolicy.js
@@ -62241,6 +62241,21 @@ function saveCacheV2(paths_1, key_1, options_1) {
 // src/save-cache.ts
 var pep440 = __toESM(require_pep440(), 1);
 
+// src/utils/logging.ts
+var quiet;
+function isQuiet() {
+  if (quiet === void 0) {
+    quiet = typeof getInput === "function" && getInput("quiet") === "true";
+  }
+  return quiet;
+}
+function info2(msg) {
+  if (!isQuiet()) {
+    info(msg);
+  }
+}
+var warning2 = warning;
+
 // src/cache/restore-cache.ts
 var STATE_CACHE_KEY = "cache-key";
 var STATE_CACHE_MATCHED_KEY = "cache-matched-key";
@@ -62327,9 +62342,14 @@ function skipComment(str, ptr) {
 }
 function skipVoid(str, ptr, banNewLines, banComments) {
   let c;
-  while ((c = str[ptr]) === " " || c === "	" || !banNewLines && (c === "\n" || c === "\r" && str[ptr + 1] === "\n"))
-    ptr++;
-  return banComments || c !== "#" ? ptr : skipVoid(str, skipComment(str, ptr), banNewLines);
+  while (1) {
+    while ((c = str[ptr]) === " " || c === "	" || !banNewLines && (c === "\n" || c === "\r" && str[ptr + 1] === "\n"))
+      ptr++;
+    if (banComments || c !== "#")
+      break;
+    ptr = skipComment(str, ptr);
+  }
+  return ptr;
 }
 function skipUntil(str, ptr, sep7, end, banNewLines = false) {
   if (!end) {
@@ -62947,6 +62967,12 @@ function getConfigValueFromTomlFile(filePath, key) {
     return void 0;
   }
   const fileContent = import_node_fs2.default.readFileSync(filePath, "utf-8");
+  return getConfigValueFromTomlContent(filePath, fileContent, key);
+}
+function getConfigValueFromTomlContent(filePath, fileContent, key) {
+  if (!filePath.endsWith(".toml")) {
+    return void 0;
+  }
   if (filePath.endsWith("pyproject.toml")) {
     const tomlContent2 = parse2(fileContent);
     return tomlContent2?.tool?.uv?.[key];
@@ -62962,6 +62988,7 @@ function loadInputs() {
   const versionFile = getVersionFile(workingDirectory);
   const pythonVersion = getInput("python-version");
   const activateEnvironment = getBooleanInput("activate-environment");
+  const noProject = getBooleanInput("no-project");
   const venvPath = getVenvPath(workingDirectory, activateEnvironment);
   const checksum = getInput("checksum");
   const enableCache = getEnableCache();
@@ -62983,7 +63010,9 @@ function loadInputs() {
   const pythonDir = getUvPythonDir();
   const githubToken = getInput("github-token");
   const manifestFile = getManifestFile();
+  const downloadFromAstralMirror = getInput("download-from-astral-mirror") === "true";
   const addProblemMatchers = getInput("add-problem-matchers") === "true";
+  const quiet2 = getInput("quiet") === "true";
   const resolutionStrategy = getResolutionStrategy();
   return {
     activateEnvironment,
@@ -62993,14 +63022,17 @@ function loadInputs() {
     cachePython,
     cacheSuffix,
     checksum,
+    downloadFromAstralMirror,
     enableCache,
     githubToken,
     ignoreEmptyWorkdir,
     ignoreNothingToCache,
     manifestFile,
+    noProject,
     pruneCache: pruneCache2,
     pythonDir,
     pythonVersion,
+    quiet: quiet2,
     resolutionStrategy,
     restoreCache: restoreCache2,
     saveCache: saveCache4,
@@ -63024,7 +63056,7 @@ function getVenvPath(workingDirectory, activateEnvironment) {
   const venvPathInput = getInput("venv-path");
   if (venvPathInput !== "") {
     if (!activateEnvironment) {
-      warning("venv-path is only used when activate-environment is true");
+      warning2("venv-path is only used when activate-environment is true");
     }
     const tildeExpanded = expandTilde(venvPathInput);
     return normalizePath(resolveRelativePath(workingDirectory, tildeExpanded));
@@ -63087,7 +63119,7 @@ function getCacheLocalPath(workingDirectory, versionFile, enableCache) {
     return { path: cacheDirFromConfig, source: 1 /* Config */ };
   }
   if (process.env.UV_CACHE_DIR !== void 0) {
-    info(`UV_CACHE_DIR is already set to ${process.env.UV_CACHE_DIR}`);
+    info2(`UV_CACHE_DIR is already set to ${process.env.UV_CACHE_DIR}`);
     return { path: process.env.UV_CACHE_DIR, source: 2 /* Env */ };
   }
   if (enableCache) {
@@ -63120,12 +63152,12 @@ function getCacheDirFromConfig(workingDirectory, versionFile) {
     try {
       const cacheDir = getConfigValueFromTomlFile(resolvedPath, "cache-dir");
       if (cacheDir !== void 0) {
-        info(`Found cache-dir in ${resolvedPath}: ${cacheDir}`);
+        info2(`Found cache-dir in ${resolvedPath}: ${cacheDir}`);
         return cacheDir;
       }
     } catch (err) {
       const message = err.message;
-      warning(`Error while parsing ${filePath}: ${message}`);
+      warning2(`Error while parsing ${filePath}: ${message}`);
       return void 0;
     }
   }
@@ -63133,7 +63165,7 @@ function getCacheDirFromConfig(workingDirectory, versionFile) {
 }
 function getUvPythonDir() {
   if (process.env.UV_PYTHON_INSTALL_DIR !== void 0) {
-    info(
+    info2(
       `UV_PYTHON_INSTALL_DIR is already set to ${process.env.UV_PYTHON_INSTALL_DIR}`
     );
     return process.env.UV_PYTHON_INSTALL_DIR;
@@ -63203,6 +63235,22 @@ function getResolutionStrategy() {
 }
 
 // src/save-cache.ts
+function formatUnexpectedFailure(error2) {
+  if (error2 instanceof Error) {
+    return error2.stack ?? error2.message;
+  }
+  return String(error2);
+}
+function failUnexpectedly(event, error2) {
+  setFailed(`${event}: ${formatUnexpectedFailure(error2)}`);
+  process.exit(1);
+}
+process.on("uncaughtException", (error2) => {
+  failUnexpectedly("Uncaught exception", error2);
+});
+process.on("unhandledRejection", (reason) => {
+  failUnexpectedly("Unhandled promise rejection", reason);
+});
 async function run() {
   try {
     const inputs = loadInputs();
@@ -63210,9 +63258,9 @@ async function run() {
       if (inputs.saveCache) {
         await saveCache3(inputs);
       } else {
-        info("save-cache is false. Skipping save cache step.");
+        info2("save-cache is false. Skipping save cache step.");
       }
-      await new Promise((resolve2) => setTimeout(resolve2, 50));
+      await new Promise((resolve2) => setTimeout(resolve2, 100));
       process.exit(0);
     }
   } catch (error2) {
@@ -63224,11 +63272,11 @@ async function saveCache3(inputs) {
   const cacheKey = getState(STATE_CACHE_KEY);
   const matchedKey = getState(STATE_CACHE_MATCHED_KEY);
   if (!cacheKey) {
-    warning("Error retrieving cache key from state.");
+    warning2("Error retrieving cache key from state.");
     return;
   }
   if (matchedKey === cacheKey) {
-    info(`Cache hit occurred on key ${cacheKey}, not saving cache.`);
+    info2(`Cache hit occurred on key ${cacheKey}, not saving cache.`);
   } else {
     if (inputs.pruneCache) {
       await pruneCache();
@@ -63236,7 +63284,7 @@ async function saveCache3(inputs) {
     const actualCachePath = getUvCachePath(inputs);
     if (!fs7.existsSync(actualCachePath)) {
       if (inputs.ignoreNothingToCache) {
-        info(
+        info2(
           "No cacheable uv cache paths were found. Ignoring because ignore-nothing-to-cache is enabled."
         );
       } else {
@@ -63255,7 +63303,7 @@ async function saveCache3(inputs) {
   }
   if (inputs.cachePython) {
     if (!fs7.existsSync(inputs.pythonDir)) {
-      warning(
+      warning2(
         `Python cache path ${inputs.pythonDir} does not exist on disk. Skipping Python cache save because no managed Python installation was found. If you want uv to install managed Python instead of using a system interpreter, set UV_PYTHON_PREFERENCE=only-managed.`
       );
       return;
@@ -63278,7 +63326,7 @@ async function pruneCache() {
   if (forceSupported) {
     execArgs.push("--force");
   }
-  info("Pruning cache...");
+  info2("Pruning cache...");
   const uvPath = getState(STATE_UV_PATH);
   await exec(uvPath, execArgs, options);
 }
@@ -63289,7 +63337,7 @@ function getUvCachePath(inputs) {
     );
   }
   if (process.env.UV_CACHE_DIR && process.env.UV_CACHE_DIR !== inputs.cacheLocalPath.path) {
-    warning(
+    warning2(
       `The environment variable UV_CACHE_DIR has been changed to "${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 "${process.env.UV_CACHE_DIR}" instead of "${inputs.cacheLocalPath.path}".`
     );
     return process.env.UV_CACHE_DIR;
@@ -63299,14 +63347,12 @@ function getUvCachePath(inputs) {
 async function saveCacheToKey(cacheKey, cachePath, stateKey, cacheName) {
   const matchedKey = getState(stateKey);
   if (matchedKey === cacheKey) {
-    info(
-      `${cacheName} hit occurred on key ${cacheKey}, not saving cache.`
-    );
+    info2(`${cacheName} hit occurred on key ${cacheKey}, not saving cache.`);
     return;
   }
-  info(`Including ${cacheName} path: ${cachePath}`);
+  info2(`Including ${cacheName} path: ${cachePath}`);
   await saveCache2([cachePath], cacheKey);
-  info(`${cacheName} saved with key: ${cacheKey}`);
+  info2(`${cacheName} saved with key: ${cacheKey}`);
 }
 run();
 // Annotate the CommonJS export names for ESM import in node:

docs/advanced-version-configuration.md

@@ -6,7 +6,7 @@ This document covers advanced options for configuring which version of uv to ins
 
 ```yaml
 - name: Install the latest version of uv
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     version: "latest"
 ```
@@ -15,7 +15,7 @@ This document covers advanced options for configuring which version of uv to ins
 
 ```yaml
 - name: Install a specific version of uv
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     version: "0.4.4"
 ```
@@ -28,21 +28,21 @@ to install the latest version that satisfies the range.
 
 ```yaml
 - name: Install a semver range of uv
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     version: ">=0.4.0"
 ```
 
 ```yaml
 - name: Pinning a minor version of uv
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     version: "0.4.x"
 ```
 
 ```yaml
 - name: Install a pep440-specifier-satisfying version of uv
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     version: ">=0.4.25,<0.5"
 ```
@@ -54,7 +54,7 @@ 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
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     version: ">=0.4.0"
     resolution-strategy: "lowest"
@@ -76,7 +76,7 @@ uv defined as a dependency in `pyproject.toml` or `requirements.txt`.
 
 ```yaml
 - name: Install uv based on the version defined in pyproject.toml
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     version-file: "pyproject.toml"
 ```

docs/caching.md

@@ -23,7 +23,7 @@ The computed cache key is available as the `cache-key` output:
 ```yaml
 - name: Setup uv
   id: setup-uv
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
 - name: Print cache key
@@ -50,7 +50,7 @@ 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
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     cache-suffix: "optional-suffix"
@@ -89,7 +89,7 @@ changes. If you use relative paths, they are relative to the working directory.
 
 ```yaml
 - name: Define a cache dependency glob
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     cache-dependency-glob: "**/pyproject.toml"
@@ -97,7 +97,7 @@ changes. If you use relative paths, they are relative to the working directory.
 
 ```yaml
 - name: Define a list of cache dependency globs
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     cache-dependency-glob: |
@@ -107,7 +107,7 @@ changes. If you use relative paths, they are relative to the working directory.
 
 ```yaml
 - name: Define an absolute cache dependency glob
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     cache-dependency-glob: "/tmp/my-folder/requirements*.txt"
@@ -115,7 +115,7 @@ changes. If you use relative paths, they are relative to the working directory.
 
 ```yaml
 - name: Never invalidate the cache
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     cache-dependency-glob: ""
@@ -128,7 +128,7 @@ By default, the cache will be restored.
 
 ```yaml
 - name: Don't restore an existing cache
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     restore-cache: false
@@ -142,7 +142,7 @@ By default, the cache will be saved.
 
 ```yaml
 - name: Don't save the cache after the run
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     save-cache: false
@@ -168,7 +168,7 @@ It defaults to `setup-uv-cache` in the `TMP` dir, `D:\a\_temp\setup-uv-cache` on
 
 ```yaml
 - name: Define a custom uv cache path
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     cache-local-path: "/path/to/cache"
 ```
@@ -187,7 +187,7 @@ input.
 
 ```yaml
 - name: Don't prune the cache before saving it
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     prune-cache: false
@@ -205,7 +205,7 @@ To force managed Python installs, set `UV_PYTHON_PREFERENCE=only-managed`.
 
 ```yaml
 - name: Cache Python installs
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     cache-python: true
@@ -213,12 +213,17 @@ To force managed Python installs, set `UV_PYTHON_PREFERENCE=only-managed`.
 
 ## 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).
+By default, the action will fail if caching is enabled but there is nothing to upload (the uv cache directory does not exist) with an error like
+
+```console
+Error: Cache path /home/runner/.cache/uv 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.
+```
+
 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
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     enable-cache: true
     ignore-nothing-to-cache: true

docs/customization.md

@@ -10,7 +10,7 @@ are automatically verified by this action. The sha256 hashes can be found on the
 
 ```yaml
 - name: Install a specific version and validate the checksum
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     version: "0.3.1"
     checksum: "e11b01402ab645392c7ad6044db63d37e4fd1e745e015306993b07695ea5f9f8"
@@ -39,7 +39,7 @@ The `archive_format` field is currently ignored.
 
 ```yaml
 - name: Use a custom manifest file
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     manifest-file: "https://example.com/my-custom-manifest.ndjson"
 ```
@@ -58,7 +58,7 @@ 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
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     add-problem-matchers: false
 ```

docs/environment-and-tools.md

@@ -9,7 +9,7 @@ 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
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     activate-environment: true
 - run: uv pip install pip
@@ -20,7 +20,7 @@ By default, the venv is created at `.venv` inside the `working-directory`.
 You can customize the venv location with `venv-path`, for example to place it in the runner temp directory:
 
 ```yaml
-- uses: astral-sh/setup-uv@v7
+- uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     activate-environment: true
     venv-path: ${{ runner.temp }}/custom-venv
@@ -51,7 +51,7 @@ are not sufficient, you can provide a custom GitHub token with the necessary per
 
 ```yaml
 - name: Install the latest version of uv with a custom GitHub token
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     github-token: ${{ secrets.CUSTOM_GITHUB_TOKEN }}
 ```
@@ -69,7 +69,7 @@ input:
 
 ```yaml
 - name: Install the latest version of uv with a custom tool dir
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     tool-dir: "/path/to/tool/dir"
 ```
@@ -88,7 +88,7 @@ If you want to change this behaviour (especially on self-hosted runners) you can
 
 ```yaml
 - name: Install the latest version of uv with a custom tool bin dir
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     tool-bin-dir: "/path/to/tool-bin/dir"
 ```
@@ -105,7 +105,7 @@ This action supports expanding the `~` character to the user's home directory fo
 
 ```yaml
 - name: Expand the tilde character
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     cache-local-path: "~/path/to/cache"
     tool-dir: "~/path/to/tool/dir"
@@ -122,7 +122,7 @@ 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
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     ignore-empty-workdir: true
 ```
@@ -145,7 +145,7 @@ This action sets several environment variables that influence uv's behavior and
 
 ```yaml
 - name: Example using environment variables
-  uses: astral-sh/setup-uv@v7
+  uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
   with:
     python-version: "3.12"
     tool-dir: "/custom/tool/dir"

package.json

@@ -35,19 +35,19 @@
     "@actions/io": "^3.0.2",
     "@actions/tool-cache": "^4.0.0",
     "@renovatebot/pep440": "^4.2.2",
-    "smol-toml": "^1.6.0",
-    "undici": "^7.24.2"
+    "smol-toml": "^1.6.1",
+    "undici": "^8.3.0"
   },
   "devDependencies": {
-    "@biomejs/biome": "^2.4.7",
+    "@biomejs/biome": "^2.4.15",
     "@types/js-yaml": "^4.0.9",
     "@types/node": "^25.5.0",
     "@types/semver": "^7.7.1",
     "@vercel/ncc": "^0.38.4",
-    "esbuild": "^0.27.4",
+    "esbuild": "^0.28.0",
     "jest": "^30.3.0",
     "js-yaml": "^4.1.1",
-    "ts-jest": "^29.4.6",
+    "ts-jest": "^29.4.11",
     "typescript": "^5.9.3"
   }
 }

src/cache/restore-cache.ts

@@ -2,6 +2,7 @@ import * as cache from "@actions/cache";
 import * as core from "@actions/core";
 import { hashFiles } from "../hash/hash-files";
 import type { SetupInputs } from "../utils/inputs";
+import * as log from "../utils/logging";
 import { getArch, getOSNameVersion, getPlatform } from "../utils/platforms";
 
 export const STATE_CACHE_KEY = "cache-key";
@@ -19,7 +20,7 @@ export async function restoreCache(
   core.setOutput("cache-key", cacheKey);
 
   if (!inputs.restoreCache) {
-    core.info("restore-cache is false. Skipping restore cache step.");
+    log.info("restore-cache is false. Skipping restore cache step.");
     core.setOutput("python-cache-hit", false);
     return;
   }
@@ -55,7 +56,7 @@ async function restoreCacheFromKey(
   stateKey: string,
   outputKey: string,
 ): Promise<void> {
-  core.info(
+  log.info(
     `Trying to restore cache from GitHub Actions cache with key: ${cacheKey}`,
   );
   let matchedKey: string | undefined;
@@ -63,7 +64,7 @@ async function restoreCacheFromKey(
     matchedKey = await cache.restoreCache([cachePath], cacheKey);
   } catch (err) {
     const message = (err as Error).message;
-    core.warning(message);
+    log.warning(message);
     core.setOutput(outputKey, false);
     return;
   }
@@ -77,7 +78,7 @@ async function computeKeys(
 ): Promise<string> {
   let cacheDependencyPathHash = "-";
   if (inputs.cacheDependencyGlob !== "") {
-    core.info(
+    log.info(
       `Searching files using cache dependency glob: ${inputs.cacheDependencyGlob.split("\n").join(",")}`,
     );
     cacheDependencyPathHash += await hashFiles(
@@ -85,7 +86,7 @@ async function computeKeys(
       true,
     );
     if (cacheDependencyPathHash === "-") {
-      core.warning(
+      log.warning(
         `No file matched to [${inputs.cacheDependencyGlob.split("\n").join(",")}]. The cache will never get invalidated. Make sure you have checked out the target repository and configured the cache-dependency-glob input correctly.`,
       );
     }
@@ -109,12 +110,12 @@ function handleMatchResult(
   outputKey: string,
 ): void {
   if (!matchedKey) {
-    core.info(`No GitHub Actions cache found for key: ${primaryKey}`);
+    log.info(`No GitHub Actions cache found for key: ${primaryKey}`);
     core.setOutput(outputKey, false);
     return;
   }
 
   core.saveState(stateKey, matchedKey);
-  core.info(`cache restored from GitHub Actions cache with key: ${matchedKey}`);
+  log.info(`cache restored from GitHub Actions cache with key: ${matchedKey}`);
   core.setOutput(outputKey, true);
 }

src/download/checksum/known-checksums.ts

@@ -1,5 +1,581 @@
 // AUTOGENERATED_DO_NOT_EDIT
 export const KNOWN_CHECKSUMS: { [key: string]: string } = {
+  "aarch64-apple-darwin-0.11.18":
+    "1a7adf8dadae3b55853115d13a8bf564d219597ad13824b93b213706933863e5",
+  "aarch64-pc-windows-msvc-0.11.18":
+    "0689e1a40d36b387522d2b1b865cd98a15ddd4a7507e256ad93be6f6a335fec1",
+  "aarch64-unknown-linux-gnu-0.11.18":
+    "0f03c6648df1c159557f4222c0f37250f84733fb88d6fc3c16770e17c177a8c9",
+  "aarch64-unknown-linux-musl-0.11.18":
+    "6d895725333680bf7633ad635baff8e49dc45d3b52e00b2b3adf6ced41f2ebe2",
+  "arm-unknown-linux-musleabihf-0.11.18":
+    "c4fe354b28c489fa6649531808076c43eb3a34122df49b0a3005bb75dbf101c3",
+  "armv7-unknown-linux-gnueabihf-0.11.18":
+    "a70a8b1124dc1fabcce9f2bbe6591c72a05d49df74125d1c327b5745f2becbb6",
+  "armv7-unknown-linux-musleabihf-0.11.18":
+    "f8b6f4df3ff9d142a25892be575ade438672a8353ad71997f7db88e9b9a1062d",
+  "i686-pc-windows-msvc-0.11.18":
+    "7505112a7bf72f50391c50f2aa07950b95b3c43c7d9fd4da5626876407d15dda",
+  "i686-unknown-linux-gnu-0.11.18":
+    "5f3df0d62af1d174a06b82a6faf1a5e9a1f729b87d11c7d9cd87d4241e04f23d",
+  "i686-unknown-linux-musl-0.11.18":
+    "4237cfcd03fb8767a7ec713ab3db14381d83bbd0bf5ccc88cd6f28ac8c2c616f",
+  "powerpc64le-unknown-linux-gnu-0.11.18":
+    "fc8f46a198e540ca2d89fd9480da0648d673ff3e25b4048c82ca5c292a478052",
+  "riscv64gc-unknown-linux-gnu-0.11.18":
+    "cdb0555db7828bbd1dc24e55171b8ac3dbbc24fe17b6a7387783cd4d543a1538",
+  "riscv64gc-unknown-linux-musl-0.11.18":
+    "3d5b533080bb593c82b281b8d289e29d51b97c0994655099845752e948181fe2",
+  "s390x-unknown-linux-gnu-0.11.18":
+    "7a91aa963680f2fe14ebf89291cf8eafcff634eccdeb6d301e0252b282171818",
+  "x86_64-apple-darwin-0.11.18":
+    "00a61e3db99b53c927a7e6c4ccdccb898aa3253d07928822211e9dc570a25661",
+  "x86_64-pc-windows-msvc-0.11.18":
+    "bf8e0021336b7c77bd80a078b612125f385b08f541437edaea8c8ca9e574db0d",
+  "x86_64-unknown-linux-gnu-0.11.18":
+    "588f3e360f69ce02b6982aa99f2240e803933a6b7e176ac01617830adf955add",
+  "x86_64-unknown-linux-musl-0.11.18":
+    "a095a969fc8357f42e35652e0554525a47a29010ddb814bd82650c2ffa7d6d62",
+  "aarch64-apple-darwin-0.11.17":
+    "2a162f6b90ff3691a2f9cae1622e066a3ce592e110f66670cdcc841324b28226",
+  "aarch64-pc-windows-msvc-0.11.17":
+    "f4463aa9671c6d153d32f2a9b272389675a711a9bca806c4ab4a3c7559b045c2",
+  "aarch64-unknown-linux-gnu-0.11.17":
+    "de008880a903ac2c5654647dc19a75c0d6652313c977a2bc5ce05e1e3a93429e",
+  "aarch64-unknown-linux-musl-0.11.17":
+    "9e5eaf16ffad968fc689f18c2733ace914ed417d4e5572e92d807fd51a90228c",
+  "arm-unknown-linux-musleabihf-0.11.17":
+    "201c7d727423095aa4ba39cc79b16cac2465720d4348270a3977824009526179",
+  "armv7-unknown-linux-gnueabihf-0.11.17":
+    "c941377b20fdd4b101376a9c8ce37c209d36655697815a32658a7cbcb3212409",
+  "armv7-unknown-linux-musleabihf-0.11.17":
+    "12606cc40d15c5ab5fd06e434c8ee1b0ef7e3ca3cd4d5b2b135a16dd1a45fed2",
+  "i686-pc-windows-msvc-0.11.17":
+    "be48cd9aa35c8615eff3dba6a24e214edf00885150eacde032a258399131c59d",
+  "i686-unknown-linux-gnu-0.11.17":
+    "89f859f3bfaf3a74733aef671e6a4ade36173623d4539d3559e11caa2c722718",
+  "i686-unknown-linux-musl-0.11.17":
+    "8d2ecb44951b80861570f4a7f732c9f16f3b342450eeb0bd2eef876b10395400",
+  "powerpc64le-unknown-linux-gnu-0.11.17":
+    "714c7b292c805231edbfc77ca14b29e6e469342236ef1cfb58fe7d6f8fed48a4",
+  "riscv64gc-unknown-linux-gnu-0.11.17":
+    "f8bece740520b35f69c82653da77912b38a29a5634a6e0ce7d83122a485c6a6f",
+  "riscv64gc-unknown-linux-musl-0.11.17":
+    "ae07b4e9c2bea3dcba2e3267e9e4229e45de63c15e74eee7fac7ccf9df6e04cd",
+  "s390x-unknown-linux-gnu-0.11.17":
+    "10ec2070644dda19ab9c8dcc3d6f3bbf4b09ad6665b8a8be067d7fdb5a58b56c",
+  "x86_64-apple-darwin-0.11.17":
+    "6c66e41eaf4d15abeda58d3f268161b6e3f742d98390341b174a7cfc1b48841d",
+  "x86_64-pc-windows-msvc-0.11.17":
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+    "036fa39fa5ea3cb86c127324924b913b5858e8d91c4cb413edacfc3123001696",
+  "i686-unknown-linux-gnu-0.11.3":
+    "b9410c8dae2fa0d4939af5b0ee7272d5591bd55890e8274dcf7f1aea84bfe043",
+  "i686-unknown-linux-musl-0.11.3":
+    "afe533fd409105e753d844490c65a4375e75bfb3812e49122684f996bed9e90a",
+  "powerpc64le-unknown-linux-gnu-0.11.3":
+    "5cdcadf4d50a5354312bc8ef37c2a6cfab4e2f13ccdf8380d3012b927b4ded95",
+  "riscv64gc-unknown-linux-gnu-0.11.3":
+    "8271e07ed9695870f4b0ae5ec722e3ae08fff280068f08bc6a8ca76c67d7fefa",
+  "riscv64gc-unknown-linux-musl-0.11.3":
+    "b750fc8393ced9939448849b05e94de6bf1e998bb7030c4ebe744b47b372bce9",
+  "s390x-unknown-linux-gnu-0.11.3":
+    "6dc4f555a5f6515f7fddb281422d2a8a3943853dae5de837bbb5d996d7576c71",
+  "x86_64-apple-darwin-0.11.3":
+    "b0e05e0b43a000fdc2132ee3f3400ba5dee427bc2337d3ec4eb8cf4f3d5722af",
+  "x86_64-pc-windows-msvc-0.11.3":
+    "ae681c0aaec7cc96af184648cb88d73f8393ed60fa5880abdd6bdb910f9b227c",
+  "x86_64-unknown-linux-gnu-0.11.3":
+    "c0f3236f146e55472663cfbcc9be3042a9f1092275bbe3fe2a56a6cbfd3da5ce",
+  "x86_64-unknown-linux-musl-0.11.3":
+    "8b40cf16b849634b81a530a3d0a0bcae5f24996ef9ae782976fd69b6266d3b8e",
   "aarch64-apple-darwin-0.11.2":
     "4beaa9550f93ef7f0fc02f7c28c9c48cd61fe30db00f5ac8947e0a425c3fb282",
   "aarch64-pc-windows-msvc-0.11.2":

src/download/download-version.ts

@@ -2,17 +2,18 @@ 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 pep440 from "@renovatebot/pep440";
-import * as semver from "semver";
 import {
   ASTRAL_MIRROR_PREFIX,
   GITHUB_RELEASES_PREFIX,
   TOOL_CACHE_NAME,
   VERSIONS_MANIFEST_URL,
 } from "../utils/constants";
+import * as log from "../utils/logging";
 import type { Architecture, Platform } from "../utils/platforms";
 import { validateChecksum } from "./checksum/checksum";
-import { getAllVersions, getArtifact, getLatestVersion } from "./manifest";
+import { getArtifact } from "./manifest";
+
+export { resolveVersion } from "../version/resolve";
 
 export function tryGetFromToolCache(
   arch: Architecture,
@@ -36,6 +37,7 @@ export async function downloadVersion(
   checksum: string | undefined,
   githubToken: string,
   manifestUrl?: string,
+  downloadFromAstralMirror = true,
 ): Promise<{ version: string; cachedToolDir: string }> {
   const artifact = await getArtifact(version, arch, platform, manifestUrl);
 
@@ -52,10 +54,10 @@ export async function downloadVersion(
       ? checksum
       : resolveChecksum(checksum, artifact.checksum);
 
-  const mirrorUrl = rewriteToMirror(artifact.downloadUrl);
+  const mirrorUrl = downloadFromAstralMirror
+    ? rewriteToMirror(artifact.downloadUrl)
+    : undefined;
   const downloadUrl = mirrorUrl ?? artifact.downloadUrl;
-  // Don't send the GitHub token to the Astral mirror.
-  const downloadToken = mirrorUrl !== undefined ? undefined : githubToken;
 
   try {
     return await downloadArtifact(
@@ -65,14 +67,14 @@ export async function downloadVersion(
       arch,
       version,
       resolvedChecksum,
-      downloadToken,
+      githubTokenForUrl(downloadUrl, githubToken),
     );
   } catch (err) {
     if (mirrorUrl === undefined) {
       throw err;
     }
 
-    core.warning(
+    log.warning(
       `Failed to download from mirror, falling back to GitHub Releases: ${(err as Error).message}`,
     );
 
@@ -83,7 +85,7 @@ export async function downloadVersion(
       arch,
       version,
       resolvedChecksum,
-      githubToken,
+      githubTokenForUrl(artifact.downloadUrl, githubToken),
     );
   }
 }
@@ -100,6 +102,19 @@ export function rewriteToMirror(url: string): string | undefined {
   return ASTRAL_MIRROR_PREFIX + url.slice(GITHUB_RELEASES_PREFIX.length);
 }
 
+function githubTokenForUrl(
+  downloadUrl: string,
+  githubToken: string,
+): string | undefined {
+  try {
+    return new URL(downloadUrl).origin === "https://github.com"
+      ? githubToken
+      : undefined;
+  } catch {
+    return undefined;
+  }
+}
+
 async function downloadArtifact(
   downloadUrl: string,
   artifactName: string,
@@ -109,7 +124,7 @@ async function downloadArtifact(
   checksum: string | undefined,
   githubToken: string | undefined,
 ): Promise<{ version: string; cachedToolDir: string }> {
-  core.info(`Downloading uv from "${downloadUrl}" ...`);
+  log.info(`Downloading uv from "${downloadUrl}" ...`);
   const downloadPath = await tc.downloadTool(
     downloadUrl,
     undefined,
@@ -125,7 +140,7 @@ async function downloadArtifact(
       // so this may fail if another tar, like gnu tar, ends up being used.
       uvDir = await tc.extractTar(downloadPath, undefined, "x");
     } catch (err) {
-      core.info(
+      log.info(
         `Extracting with tar failed, falling back to zip extraction: ${(err as Error).message}`,
       );
       const extension = getExtension(platform);
@@ -172,102 +187,3 @@ function resolveChecksum(
 function getExtension(platform: Platform): string {
   return platform === "pc-windows-msvc" ? ".zip" : ".tar.gz";
 }
-
-export async function resolveVersion(
-  versionInput: string,
-  manifestUrl: string | undefined,
-  resolutionStrategy: "highest" | "lowest" = "highest",
-): Promise<string> {
-  core.debug(`Resolving version: ${versionInput}`);
-  const isSimpleMinimumVersionSpecifier =
-    versionInput.includes(">") && !versionInput.includes(",");
-  const resolveVersionSpecifierToLatest =
-    isSimpleMinimumVersionSpecifier && resolutionStrategy === "highest";
-
-  if (resolveVersionSpecifierToLatest) {
-    core.info("Found minimum version specifier, using latest version");
-  }
-
-  const version =
-    versionInput === "latest" || resolveVersionSpecifierToLatest
-      ? await getLatestVersion(manifestUrl)
-      : versionInput;
-
-  if (tc.isExplicitVersion(version)) {
-    core.debug(`Version ${version} is an explicit version.`);
-    if (
-      resolveVersionSpecifierToLatest &&
-      !pep440.satisfies(version, versionInput)
-    ) {
-      throw new Error(`No version found for ${versionInput}`);
-    }
-    return version;
-  }
-
-  const availableVersions = await getAvailableVersions(manifestUrl);
-  core.debug(`Available versions: ${availableVersions}`);
-  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(
-  manifestUrl: string | undefined,
-): Promise<string[]> {
-  if (manifestUrl !== undefined) {
-    core.info(
-      `Getting available versions from manifest-file ${manifestUrl} ...`,
-    );
-  } else {
-    core.info(`Getting available versions from ${VERSIONS_MANIFEST_URL} ...`);
-  }
-
-  return await getAllVersions(manifestUrl);
-}
-
-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/manifest.ts

@@ -1,6 +1,7 @@
 import * as core from "@actions/core";
 import { VERSIONS_MANIFEST_URL } from "../utils/constants";
 import { fetch } from "../utils/fetch";
+import * as log from "../utils/logging";
 import { selectDefaultVariant } from "./variant-selection";
 
 export interface ManifestArtifact {
@@ -33,7 +34,7 @@ export async function fetchManifest(
     return cachedVersions;
   }
 
-  core.info(`Fetching manifest data from ${manifestUrl} ...`);
+  log.info(`Fetching manifest data from ${manifestUrl} ...`);
   const response = await fetch(manifestUrl, {});
   if (!response.ok) {
     throw new Error(
@@ -111,6 +112,9 @@ export async function getLatestVersion(
 export async function getAllVersions(
   manifestUrl: string = VERSIONS_MANIFEST_URL,
 ): Promise<string[]> {
+  log.info(
+    `Getting available versions from ${manifestSource(manifestUrl)} ...`,
+  );
   const versions = await fetchManifest(manifestUrl);
   return versions.map((versionData) => versionData.version);
 }
@@ -165,6 +169,14 @@ export function clearManifestCache(manifestUrl?: string): void {
   cachedManifestData.delete(manifestUrl);
 }
 
+function manifestSource(manifestUrl: string): string {
+  if (manifestUrl === VERSIONS_MANIFEST_URL) {
+    return VERSIONS_MANIFEST_URL;
+  }
+
+  return `manifest-file ${manifestUrl}`;
+}
+
 function isManifestVersion(value: unknown): value is ManifestVersion {
   if (!isRecord(value)) {
     return false;

src/hash/hash-files.ts

@@ -2,8 +2,8 @@ import * as crypto from "node:crypto";
 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";
+import * as log from "../utils/logging";
 
 /**
  * Hashes files matching the given glob pattern.
@@ -19,7 +19,7 @@ export async function hashFiles(
 ): Promise<string> {
   const globber = await create(pattern);
   let hasMatch = false;
-  const writeDelegate = verbose ? core.info : core.debug;
+  const writeDelegate = verbose ? log.info : log.debug;
   const result = crypto.createHash("sha256");
   let count = 0;
   for await (const file of globber.globGenerator()) {

src/save-cache.ts

@@ -10,6 +10,27 @@ import {
 } from "./cache/restore-cache";
 import { STATE_UV_PATH, STATE_UV_VERSION } from "./utils/constants";
 import { loadInputs, type SetupInputs } from "./utils/inputs";
+import * as log from "./utils/logging";
+
+function formatUnexpectedFailure(error: unknown): string {
+  if (error instanceof Error) {
+    return error.stack ?? error.message;
+  }
+  return String(error);
+}
+
+function failUnexpectedly(event: string, error: unknown): never {
+  core.setFailed(`${event}: ${formatUnexpectedFailure(error)}`);
+  process.exit(1);
+}
+
+process.on("uncaughtException", (error) => {
+  failUnexpectedly("Uncaught exception", error);
+});
+
+process.on("unhandledRejection", (reason) => {
+  failUnexpectedly("Unhandled promise rejection", reason);
+});
 
 export async function run(): Promise<void> {
   try {
@@ -18,10 +39,10 @@ export async function run(): Promise<void> {
       if (inputs.saveCache) {
         await saveCache(inputs);
       } else {
-        core.info("save-cache is false. Skipping save cache step.");
+        log.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));
+      // https://github.com/nodejs/node/issues/56645#issuecomment-3924958861
+      await new Promise((resolve) => setTimeout(resolve, 100));
 
       // node will stay alive if any promises are not resolved,
       // which is a possibility if HTTP requests are dangling
@@ -41,11 +62,11 @@ async function saveCache(inputs: SetupInputs): Promise<void> {
   const matchedKey = core.getState(STATE_CACHE_MATCHED_KEY);
 
   if (!cacheKey) {
-    core.warning("Error retrieving cache key from state.");
+    log.warning("Error retrieving cache key from state.");
     return;
   }
   if (matchedKey === cacheKey) {
-    core.info(`Cache hit occurred on key ${cacheKey}, not saving cache.`);
+    log.info(`Cache hit occurred on key ${cacheKey}, not saving cache.`);
   } else {
     if (inputs.pruneCache) {
       await pruneCache();
@@ -54,7 +75,7 @@ async function saveCache(inputs: SetupInputs): Promise<void> {
     const actualCachePath = getUvCachePath(inputs);
     if (!fs.existsSync(actualCachePath)) {
       if (inputs.ignoreNothingToCache) {
-        core.info(
+        log.info(
           "No cacheable uv cache paths were found. Ignoring because ignore-nothing-to-cache is enabled.",
         );
       } else {
@@ -74,7 +95,7 @@ async function saveCache(inputs: SetupInputs): Promise<void> {
 
   if (inputs.cachePython) {
     if (!fs.existsSync(inputs.pythonDir)) {
-      core.warning(
+      log.warning(
         `Python cache path ${inputs.pythonDir} does not exist on disk. Skipping Python cache save because no managed Python installation was found. If you want uv to install managed Python instead of using a system interpreter, set UV_PYTHON_PREFERENCE=only-managed.`,
       );
       return;
@@ -101,7 +122,7 @@ async function pruneCache(): Promise<void> {
     execArgs.push("--force");
   }
 
-  core.info("Pruning cache...");
+  log.info("Pruning cache...");
   const uvPath = core.getState(STATE_UV_PATH);
   await exec.exec(uvPath, execArgs, options);
 }
@@ -116,7 +137,7 @@ function getUvCachePath(inputs: SetupInputs): string {
     process.env.UV_CACHE_DIR &&
     process.env.UV_CACHE_DIR !== inputs.cacheLocalPath.path
   ) {
-    core.warning(
+    log.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 "${inputs.cacheLocalPath.path}".`,
     );
     return process.env.UV_CACHE_DIR;
@@ -133,15 +154,13 @@ async function saveCacheToKey(
   const matchedKey = core.getState(stateKey);
 
   if (matchedKey === cacheKey) {
-    core.info(
-      `${cacheName} hit occurred on key ${cacheKey}, not saving cache.`,
-    );
+    log.info(`${cacheName} hit occurred on key ${cacheKey}, not saving cache.`);
     return;
   }
 
-  core.info(`Including ${cacheName} path: ${cachePath}`);
+  log.info(`Including ${cacheName} path: ${cachePath}`);
   await cache.saveCache([cachePath], cacheKey);
-  core.info(`${cacheName} saved with key: ${cacheKey}`);
+  log.info(`${cacheName} saved with key: ${cacheKey}`);
 }
 
 run();

src/setup-uv.ts

@@ -5,21 +5,41 @@ import * as exec from "@actions/exec";
 import { restoreCache } from "./cache/restore-cache";
 import {
   downloadVersion,
-  resolveVersion,
   tryGetFromToolCache,
 } from "./download/download-version";
 import { STATE_UV_PATH, STATE_UV_VERSION } from "./utils/constants";
 import { CacheLocalSource, loadInputs, type SetupInputs } from "./utils/inputs";
+import * as log from "./utils/logging";
 import {
   type Architecture,
   getArch,
   getPlatform,
   type Platform,
 } from "./utils/platforms";
-import { getUvVersionFromFile } from "./version/resolve";
+import { resolveUvVersion } from "./version/resolve";
 
 const sourceDir = __dirname;
 
+function formatUnexpectedFailure(error: unknown): string {
+  if (error instanceof Error) {
+    return error.stack ?? error.message;
+  }
+  return String(error);
+}
+
+function failUnexpectedly(event: string, error: unknown): never {
+  core.setFailed(`${event}: ${formatUnexpectedFailure(error)}`);
+  process.exit(1);
+}
+
+process.on("uncaughtException", (error) => {
+  failUnexpectedly("Uncaught exception", error);
+});
+
+process.on("unhandledRejection", (reason) => {
+  failUnexpectedly("Unhandled promise rejection", reason);
+});
+
 async function getPythonVersion(inputs: SetupInputs): Promise<string> {
   if (inputs.pythonVersion !== "") {
     return inputs.pythonVersion;
@@ -77,7 +97,7 @@ async function run(): Promise<void> {
 
     core.setOutput("uv-version", setupResult.version);
     core.saveState(STATE_UV_VERSION, setupResult.version);
-    core.info(`Successfully installed uv version ${setupResult.version}`);
+    log.info(`Successfully installed uv version ${setupResult.version}`);
 
     const detectedPythonVersion = await getPythonVersion(inputs);
     core.setOutput("python-version", detectedPythonVersion);
@@ -85,8 +105,8 @@ async function run(): Promise<void> {
     if (inputs.enableCache) {
       await restoreCache(inputs, detectedPythonVersion);
     }
-    // https://github.com/nodejs/node/issues/56645#issuecomment-3077594952
-    await new Promise((resolve) => setTimeout(resolve, 50));
+    // https://github.com/nodejs/node/issues/56645#issuecomment-3924958861
+    await new Promise((resolve) => setTimeout(resolve, 100));
     process.exit(0);
   } catch (err) {
     core.setFailed((err as Error).message);
@@ -96,11 +116,11 @@ async function run(): Promise<void> {
 function detectEmptyWorkdir(inputs: SetupInputs): void {
   if (fs.readdirSync(inputs.workingDirectory).length === 0) {
     if (inputs.ignoreEmptyWorkdir) {
-      core.info(
+      log.info(
         "Empty workdir detected. Ignoring because ignore-empty-workdir is enabled",
       );
     } else {
-      core.warning(
+      log.warning(
         "Empty workdir detected. This may cause unexpected behavior. You can enable ignore-empty-workdir to mute this warning.",
       );
     }
@@ -112,10 +132,16 @@ async function setupUv(
   platform: Platform,
   arch: Architecture,
 ): Promise<{ uvDir: string; version: string }> {
-  const resolvedVersion = await determineVersion(inputs);
+  const resolvedVersion = await resolveUvVersion({
+    manifestFile: inputs.manifestFile,
+    resolutionStrategy: inputs.resolutionStrategy,
+    version: inputs.version,
+    versionFile: inputs.versionFile,
+    workingDirectory: inputs.workingDirectory,
+  });
   const toolCacheResult = tryGetFromToolCache(arch, resolvedVersion);
   if (toolCacheResult.installedPath) {
-    core.info(`Found uv in tool-cache for ${toolCacheResult.version}`);
+    log.info(`Found uv in tool-cache for ${toolCacheResult.version}`);
     return {
       uvDir: toolCacheResult.installedPath,
       version: toolCacheResult.version,
@@ -129,6 +155,7 @@ async function setupUv(
     inputs.checksum,
     inputs.githubToken,
     inputs.manifestFile,
+    inputs.downloadFromAstralMirror,
   );
 
   return {
@@ -137,83 +164,44 @@ async function setupUv(
   };
 }
 
-async function determineVersion(inputs: SetupInputs): Promise<string> {
-  return await resolveVersion(
-    getRequestedVersion(inputs),
-    inputs.manifestFile,
-    inputs.resolutionStrategy,
-  );
-}
-
-function getRequestedVersion(inputs: SetupInputs): string {
-  if (inputs.version !== "") {
-    return inputs.version;
-  }
-
-  if (inputs.versionFile !== "") {
-    const versionFromFile = getUvVersionFromFile(inputs.versionFile);
-    if (versionFromFile === undefined) {
-      throw new Error(
-        `Could not determine uv version from file: ${inputs.versionFile}`,
-      );
-    }
-    return versionFromFile;
-  }
-
-  const versionFromUvToml = getUvVersionFromFile(
-    `${inputs.workingDirectory}${path.sep}uv.toml`,
-  );
-  const versionFromPyproject = getUvVersionFromFile(
-    `${inputs.workingDirectory}${path.sep}pyproject.toml`,
-  );
-
-  if (versionFromUvToml === undefined && versionFromPyproject === undefined) {
-    core.info(
-      "Could not determine uv version from uv.toml or pyproject.toml. Falling back to latest.",
-    );
-  }
-
-  return versionFromUvToml || versionFromPyproject || "latest";
-}
-
 function addUvToPathAndOutput(cachedPath: string): void {
   core.setOutput("uv-path", `${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");
+    log.info("UV_NO_MODIFY_PATH is set, not modifying PATH");
   } else {
     core.addPath(cachedPath);
-    core.info(`Added ${cachedPath} to the path`);
+    log.info(`Added ${cachedPath} to the path`);
   }
 }
 
 function addToolBinToPath(inputs: SetupInputs): void {
   if (inputs.toolBinDir !== undefined) {
     core.exportVariable("UV_TOOL_BIN_DIR", inputs.toolBinDir);
-    core.info(`Set UV_TOOL_BIN_DIR to ${inputs.toolBinDir}`);
+    log.info(`Set UV_TOOL_BIN_DIR to ${inputs.toolBinDir}`);
     if (process.env.UV_NO_MODIFY_PATH !== undefined) {
-      core.info(
+      log.info(
         `UV_NO_MODIFY_PATH is set, not adding ${inputs.toolBinDir} to path`,
       );
     } else {
       core.addPath(inputs.toolBinDir);
-      core.info(`Added ${inputs.toolBinDir} to the path`);
+      log.info(`Added ${inputs.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");
+      log.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`);
+      log.info(`Added ${process.env.XDG_BIN_HOME} to the path`);
     } else if (process.env.XDG_DATA_HOME !== undefined) {
       core.addPath(`${process.env.XDG_DATA_HOME}/../bin`);
-      core.info(`Added ${process.env.XDG_DATA_HOME}/../bin to the path`);
+      log.info(`Added ${process.env.XDG_DATA_HOME}/../bin to the path`);
     } else {
       core.addPath(`${process.env.HOME}/.local/bin`);
-      core.info(`Added ${process.env.HOME}/.local/bin to the path`);
+      log.info(`Added ${process.env.HOME}/.local/bin to the path`);
     }
   }
 }
@@ -221,25 +209,25 @@ function addToolBinToPath(inputs: SetupInputs): void {
 function setToolDir(inputs: SetupInputs): void {
   if (inputs.toolDir !== undefined) {
     core.exportVariable("UV_TOOL_DIR", inputs.toolDir);
-    core.info(`Set UV_TOOL_DIR to ${inputs.toolDir}`);
+    log.info(`Set UV_TOOL_DIR to ${inputs.toolDir}`);
   }
 }
 
 function addPythonDirToPath(inputs: SetupInputs): void {
   core.exportVariable("UV_PYTHON_INSTALL_DIR", inputs.pythonDir);
-  core.info(`Set UV_PYTHON_INSTALL_DIR to ${inputs.pythonDir}`);
+  log.info(`Set UV_PYTHON_INSTALL_DIR to ${inputs.pythonDir}`);
   if (process.env.UV_NO_MODIFY_PATH !== undefined) {
-    core.info("UV_NO_MODIFY_PATH is set, not adding python dir to path");
+    log.info("UV_NO_MODIFY_PATH is set, not adding python dir to path");
   } else {
     core.addPath(inputs.pythonDir);
-    core.info(`Added ${inputs.pythonDir} to the path`);
+    log.info(`Added ${inputs.pythonDir} to the path`);
   }
 }
 
 function setupPython(inputs: SetupInputs): void {
   if (inputs.pythonVersion !== "") {
     core.exportVariable("UV_PYTHON", inputs.pythonVersion);
-    core.info(`Set UV_PYTHON to ${inputs.pythonVersion}`);
+    log.info(`Set UV_PYTHON to ${inputs.pythonVersion}`);
   }
 }
 
@@ -251,14 +239,18 @@ async function activateEnvironment(inputs: SetupInputs): Promise<void> {
       );
     }
 
-    core.info(`Creating and activating python venv at ${inputs.venvPath}...`);
-    await exec.exec("uv", [
+    log.info(`Creating and activating python venv at ${inputs.venvPath}...`);
+    const venvArgs = [
       "venv",
       inputs.venvPath,
       "--directory",
       inputs.workingDirectory,
       "--clear",
-    ]);
+    ];
+    if (inputs.noProject) {
+      venvArgs.push("--no-project");
+    }
+    await exec.exec("uv", venvArgs);
 
     let venvBinPath = `${inputs.venvPath}${path.sep}bin`;
     if (process.platform === "win32") {
@@ -273,13 +265,13 @@ async function activateEnvironment(inputs: SetupInputs): Promise<void> {
 function setCacheDir(inputs: SetupInputs): void {
   if (inputs.cacheLocalPath !== undefined) {
     if (inputs.cacheLocalPath.source === CacheLocalSource.Config) {
-      core.info(
+      log.info(
         "Using cache-dir from uv config file, not modifying UV_CACHE_DIR",
       );
       return;
     }
     core.exportVariable("UV_CACHE_DIR", inputs.cacheLocalPath.path);
-    core.info(`Set UV_CACHE_DIR to ${inputs.cacheLocalPath.path}`);
+    log.info(`Set UV_CACHE_DIR to ${inputs.cacheLocalPath.path}`);
   }
 }
 

src/update-known-checksums.ts

@@ -10,6 +10,7 @@ import {
   getLatestVersion,
   type ManifestVersion,
 } from "./download/manifest";
+import * as log from "./utils/logging";
 
 const VERSION_IN_CHECKSUM_KEY_PATTERN =
   /-(\d+\.\d+\.\d+(?:[-+][0-9A-Za-z.-]+)?)$/;
@@ -26,7 +27,7 @@ async function run(): Promise<void> {
   const latestKnownVersion = getLatestKnownVersionFromChecksums();
 
   if (semver.lte(latestVersion, latestKnownVersion)) {
-    core.info(
+    log.info(
       `Latest release (${latestVersion}) is not newer than the latest known version (${latestKnownVersion}). Skipping update.`,
     );
     return;

src/utils/config-file.ts

@@ -8,7 +8,19 @@ export function getConfigValueFromTomlFile(
   if (!fs.existsSync(filePath) || !filePath.endsWith(".toml")) {
     return undefined;
   }
+
   const fileContent = fs.readFileSync(filePath, "utf-8");
+  return getConfigValueFromTomlContent(filePath, fileContent, key);
+}
+
+export function getConfigValueFromTomlContent(
+  filePath: string,
+  fileContent: string,
+  key: string,
+): string | undefined {
+  if (!filePath.endsWith(".toml")) {
+    return undefined;
+  }
 
   if (filePath.endsWith("pyproject.toml")) {
     const tomlContent = toml.parse(fileContent) as {
@@ -16,6 +28,7 @@ export function getConfigValueFromTomlFile(
     };
     return tomlContent?.tool?.uv?.[key];
   }
+
   const tomlContent = toml.parse(fileContent) as Record<
     string,
     string | undefined

src/utils/fetch.ts

@@ -14,8 +14,17 @@ export function getProxyAgent() {
   return undefined;
 }
 
-export const fetch = async (url: string, opts: RequestInit) =>
-  await undiciFetch(url, {
+export const fetch = async (url: string, opts: RequestInit) => {
+  // Merge timeout signal with any existing signal from opts
+  const timeoutSignal = AbortSignal.timeout(5_000);
+  const existingSignal = opts.signal;
+  const mergedSignal = existingSignal
+    ? AbortSignal.any([timeoutSignal, existingSignal])
+    : timeoutSignal;
+
+  return await undiciFetch(url, {
     dispatcher: getProxyAgent(),
     ...opts,
+    signal: mergedSignal,
   });
+};

src/utils/inputs.ts

@@ -1,6 +1,7 @@
 import path from "node:path";
 import * as core from "@actions/core";
 import { getConfigValueFromTomlFile } from "./config-file";
+import * as log from "./logging";
 
 export enum CacheLocalSource {
   Input,
@@ -22,6 +23,7 @@ export interface SetupInputs {
   versionFile: string;
   pythonVersion: string;
   activateEnvironment: boolean;
+  noProject: boolean;
   venvPath: string;
   checksum: string;
   enableCache: boolean;
@@ -39,7 +41,9 @@ export interface SetupInputs {
   pythonDir: string;
   githubToken: string;
   manifestFile?: string;
+  downloadFromAstralMirror: boolean;
   addProblemMatchers: boolean;
+  quiet: boolean;
   resolutionStrategy: ResolutionStrategy;
 }
 
@@ -49,6 +53,7 @@ export function loadInputs(): SetupInputs {
   const versionFile = getVersionFile(workingDirectory);
   const pythonVersion = core.getInput("python-version");
   const activateEnvironment = core.getBooleanInput("activate-environment");
+  const noProject = core.getBooleanInput("no-project");
   const venvPath = getVenvPath(workingDirectory, activateEnvironment);
   const checksum = core.getInput("checksum");
   const enableCache = getEnableCache();
@@ -71,7 +76,10 @@ export function loadInputs(): SetupInputs {
   const pythonDir = getUvPythonDir();
   const githubToken = core.getInput("github-token");
   const manifestFile = getManifestFile();
+  const downloadFromAstralMirror =
+    core.getInput("download-from-astral-mirror") === "true";
   const addProblemMatchers = core.getInput("add-problem-matchers") === "true";
+  const quiet = core.getInput("quiet") === "true";
   const resolutionStrategy = getResolutionStrategy();
 
   return {
@@ -82,14 +90,17 @@ export function loadInputs(): SetupInputs {
     cachePython,
     cacheSuffix,
     checksum,
+    downloadFromAstralMirror,
     enableCache,
     githubToken,
     ignoreEmptyWorkdir,
     ignoreNothingToCache,
     manifestFile,
+    noProject,
     pruneCache,
     pythonDir,
     pythonVersion,
+    quiet,
     resolutionStrategy,
     restoreCache,
     saveCache,
@@ -118,7 +129,7 @@ function getVenvPath(
   const venvPathInput = core.getInput("venv-path");
   if (venvPathInput !== "") {
     if (!activateEnvironment) {
-      core.warning("venv-path is only used when activate-environment is true");
+      log.warning("venv-path is only used when activate-environment is true");
     }
     const tildeExpanded = expandTilde(venvPathInput);
     return normalizePath(resolveRelativePath(workingDirectory, tildeExpanded));
@@ -189,7 +200,7 @@ function getCacheLocalPath(
     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}`);
+    log.info(`UV_CACHE_DIR is already set to ${process.env.UV_CACHE_DIR}`);
     return { path: process.env.UV_CACHE_DIR, source: CacheLocalSource.Env };
   }
   if (enableCache) {
@@ -226,12 +237,12 @@ function getCacheDirFromConfig(
     try {
       const cacheDir = getConfigValueFromTomlFile(resolvedPath, "cache-dir");
       if (cacheDir !== undefined) {
-        core.info(`Found cache-dir in ${resolvedPath}: ${cacheDir}`);
+        log.info(`Found cache-dir in ${resolvedPath}: ${cacheDir}`);
         return cacheDir;
       }
     } catch (err) {
       const message = (err as Error).message;
-      core.warning(`Error while parsing ${filePath}: ${message}`);
+      log.warning(`Error while parsing ${filePath}: ${message}`);
       return undefined;
     }
   }
@@ -240,7 +251,7 @@ function getCacheDirFromConfig(
 
 export function getUvPythonDir(): string {
   if (process.env.UV_PYTHON_INSTALL_DIR !== undefined) {
-    core.info(
+    log.info(
       `UV_PYTHON_INSTALL_DIR is already set to ${process.env.UV_PYTHON_INSTALL_DIR}`,
     );
     return process.env.UV_PYTHON_INSTALL_DIR;

src/utils/logging.ts

@@ -0,0 +1,21 @@
+import * as core from "@actions/core";
+
+let quiet: boolean | undefined;
+
+function isQuiet(): boolean {
+  if (quiet === undefined) {
+    quiet =
+      typeof core.getInput === "function" && core.getInput("quiet") === "true";
+  }
+  return quiet;
+}
+
+export function info(msg: string): void {
+  if (!isQuiet()) {
+    core.info(msg);
+  }
+}
+
+export const warning = core.warning;
+export const error = core.error;
+export const debug = core.debug;

src/version/file-parser.ts

@@ -0,0 +1,101 @@
+import fs from "node:fs";
+import { getConfigValueFromTomlContent } from "../utils/config-file";
+import * as log from "../utils/logging";
+import {
+  getUvVersionFromParsedPyproject,
+  getUvVersionFromRequirementsText,
+  parsePyprojectContent,
+} from "./requirements-file";
+import { normalizeVersionSpecifier } from "./specifier";
+import { getUvVersionFromToolVersions } from "./tool-versions-file";
+import type { ParsedVersionFile, VersionFileFormat } from "./types";
+
+interface VersionFileParser {
+  format: VersionFileFormat;
+  parse(filePath: string): string | undefined;
+  supports(filePath: string): boolean;
+}
+
+const VERSION_FILE_PARSERS: VersionFileParser[] = [
+  {
+    format: ".tool-versions",
+    parse: (filePath) => getUvVersionFromToolVersions(filePath),
+    supports: (filePath) => filePath.endsWith(".tool-versions"),
+  },
+  {
+    format: "uv.toml",
+    parse: (filePath) => {
+      const fileContent = fs.readFileSync(filePath, "utf-8");
+      return getConfigValueFromTomlContent(
+        filePath,
+        fileContent,
+        "required-version",
+      );
+    },
+    supports: (filePath) => filePath.endsWith("uv.toml"),
+  },
+  {
+    format: "pyproject.toml",
+    parse: (filePath) => {
+      const fileContent = fs.readFileSync(filePath, "utf-8");
+      const pyproject = parsePyprojectContent(fileContent);
+      const requiredVersion = pyproject.tool?.uv?.["required-version"];
+
+      if (requiredVersion !== undefined) {
+        return requiredVersion;
+      }
+
+      return getUvVersionFromParsedPyproject(pyproject);
+    },
+    supports: (filePath) => filePath.endsWith("pyproject.toml"),
+  },
+  {
+    format: "requirements",
+    parse: (filePath) => {
+      const fileContent = fs.readFileSync(filePath, "utf-8");
+      return getUvVersionFromRequirementsText(fileContent);
+    },
+    supports: (filePath) => filePath.endsWith(".txt"),
+  },
+];
+
+export function getParsedVersionFile(
+  filePath: string,
+): ParsedVersionFile | undefined {
+  log.info(`Trying to find version for uv in: ${filePath}`);
+
+  if (!fs.existsSync(filePath)) {
+    log.info(`Could not find file: ${filePath}`);
+    return undefined;
+  }
+
+  const parser = getVersionFileParser(filePath);
+  if (parser === undefined) {
+    return undefined;
+  }
+
+  try {
+    const specifier = parser.parse(filePath);
+    if (specifier === undefined) {
+      return undefined;
+    }
+
+    const normalizedSpecifier = normalizeVersionSpecifier(specifier);
+    log.info(`Found version for uv in ${filePath}: ${normalizedSpecifier}`);
+    return {
+      format: parser.format,
+      specifier: normalizedSpecifier,
+    };
+  } catch (error) {
+    log.warning(`Error while parsing ${filePath}: ${(error as Error).message}`);
+    return undefined;
+  }
+}
+
+export function getUvVersionFromFile(filePath: string): string | undefined {
+  return getParsedVersionFile(filePath)?.specifier;
+}
+
+function getVersionFileParser(filePath: string): VersionFileParser | undefined {
+  return VERSION_FILE_PARSERS.find((parser) => parser.supports(filePath));
+}

src/version/requirements-file.ts

@@ -5,31 +5,23 @@ export function getUvVersionFromRequirementsFile(
   filePath: string,
 ): string | undefined {
   const fileContent = fs.readFileSync(filePath, "utf-8");
+
   if (filePath.endsWith(".txt")) {
-    return getUvVersionFromAllDependencies(fileContent.split("\n"));
+    return getUvVersionFromRequirementsText(fileContent);
   }
-  const dependencies = parsePyprojectDependencies(fileContent);
-  return getUvVersionFromAllDependencies(dependencies);
+
+  return getUvVersionFromPyprojectContent(fileContent);
 }
-function getUvVersionFromAllDependencies(
-  allDependencies: string[],
+
+export function getUvVersionFromRequirementsText(
+  fileContent: string,
 ): string | undefined {
-  return allDependencies
-    .find((dep: string) => dep.match(/^uv[=<>~!]/))
-    ?.match(/^uv([=<>~!]+\S*)/)?.[1]
-    .trim();
+  return getUvVersionFromAllDependencies(fileContent.split("\n"));
 }
 
-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);
+export function getUvVersionFromParsedPyproject(
+  pyproject: Pyproject,
+): string | undefined {
   const dependencies: string[] = pyproject?.project?.dependencies || [];
   const optionalDependencies: string[] = Object.values(
     pyproject?.project?.["optional-dependencies"] || {},
@@ -39,5 +31,39 @@ function parsePyprojectDependencies(pyprojectContent: string): string[] {
   )
     .flat()
     .filter((item: string | object) => typeof item === "string");
-  return dependencies.concat(optionalDependencies, devDependencies);
+
+  return getUvVersionFromAllDependencies(
+    dependencies.concat(optionalDependencies, devDependencies),
+  );
+}
+
+export function getUvVersionFromPyprojectContent(
+  pyprojectContent: string,
+): string | undefined {
+  const pyproject = parsePyprojectContent(pyprojectContent);
+  return getUvVersionFromParsedPyproject(pyproject);
+}
+
+export interface Pyproject {
+  project?: {
+    dependencies?: string[];
+    "optional-dependencies"?: Record<string, string[]>;
+  };
+  "dependency-groups"?: Record<string, Array<string | object>>;
+  tool?: {
+    uv?: Record<string, string | undefined>;
+  };
+}
+
+export function parsePyprojectContent(pyprojectContent: string): Pyproject {
+  return toml.parse(pyprojectContent) as Pyproject;
+}
+
+function getUvVersionFromAllDependencies(
+  allDependencies: string[],
+): string | undefined {
+  return allDependencies
+    .find((dep: string) => dep.match(/^uv[=<>~!]/))
+    ?.match(/^uv([=<>~!]+\S*)/)?.[1]
+    .trim();
 }

src/version/resolve.ts

@@ -1,34 +1,184 @@
-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";
+import * as tc from "@actions/tool-cache";
+import * as pep440 from "@renovatebot/pep440";
+import * as semver from "semver";
+import { getAllVersions, getLatestVersion } from "../download/manifest";
+import type { ResolutionStrategy } from "../utils/inputs";
+import * as log from "../utils/logging";
+import {
+  type ParsedVersionSpecifier,
+  parseVersionSpecifier,
+} from "./specifier";
+import type { ResolveUvVersionOptions } from "./types";
+import { resolveVersionRequest } from "./version-request-resolver";
 
-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;
+interface ConcreteVersionResolutionContext {
+  manifestUrl?: string;
+  parsedSpecifier: ParsedVersionSpecifier;
+  resolutionStrategy: ResolutionStrategy;
+}
+
+interface ConcreteVersionResolver {
+  resolve(
+    context: ConcreteVersionResolutionContext,
+  ): Promise<string | undefined>;
+}
+
+class ExactVersionResolver implements ConcreteVersionResolver {
+  async resolve(
+    context: ConcreteVersionResolutionContext,
+  ): Promise<string | undefined> {
+    if (context.parsedSpecifier.kind !== "exact") {
+      return undefined;
+    }
+
+    core.debug(
+      `Version ${context.parsedSpecifier.normalized} is an explicit version.`,
+    );
+    return context.parsedSpecifier.normalized;
+  }
+}
+
+class LatestVersionResolver implements ConcreteVersionResolver {
+  async resolve(
+    context: ConcreteVersionResolutionContext,
+  ): Promise<string | undefined> {
+    const shouldUseLatestVersion =
+      context.parsedSpecifier.kind === "latest" ||
+      (context.parsedSpecifier.kind === "range" &&
+        context.parsedSpecifier.isSimpleMinimumVersionSpecifier &&
+        context.resolutionStrategy === "highest");
+
+    if (!shouldUseLatestVersion) {
+      return undefined;
+    }
+
+    if (
+      context.parsedSpecifier.kind === "range" &&
+      context.parsedSpecifier.isSimpleMinimumVersionSpecifier
+    ) {
+      log.info("Found minimum version specifier, using latest version");
+    }
+
+    const latestVersion = await getLatestVersion(context.manifestUrl);
+
+    if (
+      context.parsedSpecifier.kind === "range" &&
+      context.parsedSpecifier.isSimpleMinimumVersionSpecifier &&
+      !pep440.satisfies(latestVersion, context.parsedSpecifier.raw)
+    ) {
+      throw new Error(`No version found for ${context.parsedSpecifier.raw}`);
+    }
+
+    return latestVersion;
+  }
+}
+
+class RangeVersionResolver implements ConcreteVersionResolver {
+  async resolve(
+    context: ConcreteVersionResolutionContext,
+  ): Promise<string | undefined> {
+    if (context.parsedSpecifier.kind !== "range") {
+      return undefined;
+    }
+
+    const availableVersions = await getAllVersions(context.manifestUrl);
+    core.debug(`Available versions: ${availableVersions}`);
+
+    const resolvedVersion =
+      context.resolutionStrategy === "lowest"
+        ? minSatisfying(availableVersions, context.parsedSpecifier.normalized)
+        : maxSatisfying(availableVersions, context.parsedSpecifier.normalized);
+
+    if (resolvedVersion === undefined) {
+      throw new Error(`No version found for ${context.parsedSpecifier.raw}`);
+    }
+
+    return resolvedVersion;
+  }
+}
+
+const CONCRETE_VERSION_RESOLVERS: ConcreteVersionResolver[] = [
+  new ExactVersionResolver(),
+  new LatestVersionResolver(),
+  new RangeVersionResolver(),
+];
+
+export async function resolveUvVersion(
+  options: ResolveUvVersionOptions,
+): Promise<string> {
+  const request = resolveVersionRequest(options);
+  const resolutionStrategy = options.resolutionStrategy ?? "highest";
+  const version = await resolveVersion(
+    request.specifier,
+    options.manifestFile,
+    resolutionStrategy,
+  );
+
+  return version;
+}
+
+export async function resolveVersion(
+  versionInput: string,
+  manifestUrl: string | undefined,
+  resolutionStrategy: ResolutionStrategy = "highest",
+): Promise<string> {
+  core.debug(`Resolving version: ${versionInput}`);
+
+  const context: ConcreteVersionResolutionContext = {
+    manifestUrl,
+    parsedSpecifier: parseVersionSpecifier(versionInput),
+    resolutionStrategy,
+  };
+
+  for (const resolver of CONCRETE_VERSION_RESOLVERS) {
+    const version = await resolver.resolve(context);
+    if (version !== undefined) {
+      return version;
+    }
+  }
+
+  throw new Error(`No version found for ${versionInput}`);
+}
+
+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 {
+  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/version/specifier.ts

@@ -0,0 +1,59 @@
+import * as tc from "@actions/tool-cache";
+
+export type ParsedVersionSpecifier =
+  | {
+      kind: "exact";
+      normalized: string;
+      raw: string;
+    }
+  | {
+      kind: "latest";
+      normalized: "latest";
+      raw: string;
+    }
+  | {
+      isSimpleMinimumVersionSpecifier: boolean;
+      kind: "range";
+      normalized: string;
+      raw: string;
+    };
+
+export function normalizeVersionSpecifier(specifier: string): string {
+  const trimmedSpecifier = specifier.trim();
+
+  if (trimmedSpecifier.startsWith("==")) {
+    return trimmedSpecifier.slice(2);
+  }
+
+  return trimmedSpecifier;
+}
+
+export function parseVersionSpecifier(
+  specifier: string,
+): ParsedVersionSpecifier {
+  const raw = specifier.trim();
+  const normalized = normalizeVersionSpecifier(raw);
+
+  if (normalized === "latest") {
+    return {
+      kind: "latest",
+      normalized: "latest",
+      raw,
+    };
+  }
+
+  if (tc.isExplicitVersion(normalized)) {
+    return {
+      kind: "exact",
+      normalized,
+      raw,
+    };
+  }
+
+  return {
+    isSimpleMinimumVersionSpecifier: raw.includes(">") && !raw.includes(","),
+    kind: "range",
+    normalized,
+    raw,
+  };
+}

src/version/types.ts

@@ -0,0 +1,34 @@
+import type { ResolutionStrategy } from "../utils/inputs";
+
+export type VersionSource =
+  | "input"
+  | "version-file"
+  | "uv.toml"
+  | "pyproject.toml"
+  | "default";
+
+export type VersionFileFormat =
+  | ".tool-versions"
+  | "pyproject.toml"
+  | "requirements"
+  | "uv.toml";
+
+export interface ParsedVersionFile {
+  format: VersionFileFormat;
+  specifier: string;
+}
+
+export interface ResolveUvVersionOptions {
+  manifestFile?: string;
+  resolutionStrategy?: ResolutionStrategy;
+  version?: string;
+  versionFile?: string;
+  workingDirectory: string;
+}
+
+export interface VersionRequest {
+  format?: VersionFileFormat;
+  source: VersionSource;
+  sourcePath?: string;
+  specifier: string;
+}

src/version/version-request-resolver.ts

@@ -0,0 +1,158 @@
+import * as path from "node:path";
+import * as log from "../utils/logging";
+import { getParsedVersionFile } from "./file-parser";
+import { normalizeVersionSpecifier } from "./specifier";
+import type {
+  ParsedVersionFile,
+  ResolveUvVersionOptions,
+  VersionRequest,
+} from "./types";
+
+export interface VersionRequestResolver {
+  resolve(context: VersionRequestContext): VersionRequest | undefined;
+}
+
+export class VersionRequestContext {
+  readonly version: string | undefined;
+  readonly versionFile: string | undefined;
+  readonly workingDirectory: string;
+
+  private readonly parsedFiles = new Map<
+    string,
+    ParsedVersionFile | undefined
+  >();
+
+  constructor(
+    version: string | undefined,
+    versionFile: string | undefined,
+    workingDirectory: string,
+  ) {
+    this.version = version;
+    this.versionFile = versionFile;
+    this.workingDirectory = workingDirectory;
+  }
+
+  getVersionFile(filePath: string): ParsedVersionFile | undefined {
+    const cachedResult = this.parsedFiles.get(filePath);
+    if (cachedResult !== undefined || this.parsedFiles.has(filePath)) {
+      return cachedResult;
+    }
+
+    const result = getParsedVersionFile(filePath);
+    this.parsedFiles.set(filePath, result);
+    return result;
+  }
+
+  getWorkspaceCandidates(): Array<{
+    source: "pyproject.toml" | "uv.toml";
+    sourcePath: string;
+  }> {
+    return [
+      {
+        source: "uv.toml",
+        sourcePath: path.join(this.workingDirectory, "uv.toml"),
+      },
+      {
+        source: "pyproject.toml",
+        sourcePath: path.join(this.workingDirectory, "pyproject.toml"),
+      },
+    ];
+  }
+}
+
+export class ExplicitInputVersionResolver implements VersionRequestResolver {
+  resolve(context: VersionRequestContext): VersionRequest | undefined {
+    if (context.version === undefined) {
+      return undefined;
+    }
+
+    return {
+      source: "input",
+      specifier: normalizeVersionSpecifier(context.version),
+    };
+  }
+}
+
+export class VersionFileVersionResolver implements VersionRequestResolver {
+  resolve(context: VersionRequestContext): VersionRequest | undefined {
+    if (context.versionFile === undefined) {
+      return undefined;
+    }
+
+    const versionFile = context.getVersionFile(context.versionFile);
+    if (versionFile === undefined) {
+      throw new Error(
+        `Could not determine uv version from file: ${context.versionFile}`,
+      );
+    }
+
+    return {
+      format: versionFile.format,
+      source: "version-file",
+      sourcePath: context.versionFile,
+      specifier: versionFile.specifier,
+    };
+  }
+}
+
+export class WorkspaceVersionResolver implements VersionRequestResolver {
+  resolve(context: VersionRequestContext): VersionRequest | undefined {
+    for (const candidate of context.getWorkspaceCandidates()) {
+      const versionFile = context.getVersionFile(candidate.sourcePath);
+      if (versionFile === undefined) {
+        continue;
+      }
+
+      return {
+        format: versionFile.format,
+        source: candidate.source,
+        sourcePath: candidate.sourcePath,
+        specifier: versionFile.specifier,
+      };
+    }
+
+    log.info(
+      "Could not determine uv version from uv.toml or pyproject.toml. Falling back to latest.",
+    );
+    return undefined;
+  }
+}
+
+export class LatestVersionResolver implements VersionRequestResolver {
+  resolve(): VersionRequest {
+    return {
+      source: "default",
+      specifier: "latest",
+    };
+  }
+}
+
+const VERSION_REQUEST_RESOLVERS: VersionRequestResolver[] = [
+  new ExplicitInputVersionResolver(),
+  new VersionFileVersionResolver(),
+  new WorkspaceVersionResolver(),
+  new LatestVersionResolver(),
+];
+
+export function resolveVersionRequest(
+  options: ResolveUvVersionOptions,
+): VersionRequest {
+  const context = new VersionRequestContext(
+    emptyToUndefined(options.version),
+    emptyToUndefined(options.versionFile),
+    options.workingDirectory,
+  );
+
+  for (const resolver of VERSION_REQUEST_RESOLVERS) {
+    const request = resolver.resolve(context);
+    if (request !== undefined) {
+      return request;
+    }
+  }
+
+  throw new Error("Could not resolve a requested uv version.");
+}
+
+function emptyToUndefined(value: string | undefined): string | undefined {
+  return value === undefined || value === "" ? undefined : value;
+}