Review

chore: update known checksums for 0.9.26

Co-authored-by: eifinger <eifinger@users.noreply.github.com>

.github/copilot-instructions.md

@@ -23,7 +23,7 @@ and configures the environment for subsequent workflow steps.
 **Size**: Small-medium repository (~50 source files, ~400 total files including dependencies)
 **Languages**: TypeScript (primary), JavaScript (compiled output), JSON (configuration)
 **Runtime**: Node.js 24 (GitHub Actions runtime)
-**Key Dependencies**: @actions/core, @actions/cache, @actions/tool-cache, @octokit/core
+**Key Dependencies**: @actions/core, @actions/cache, @actions/tool-cache
 
 ### Core Architecture
 

.github/workflows/codeql-analysis.yml

@@ -47,7 +47,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@fe4161a26a8629af62121b670040955b330f9af2 # v4.31.6
+        uses: github/codeql-action/init@5d4e8d1aca955e8d8589aabd499c5cae939e33c7 # v4.31.9
         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@fe4161a26a8629af62121b670040955b330f9af2 # v4.31.6
+        uses: github/codeql-action/autobuild@5d4e8d1aca955e8d8589aabd499c5cae939e33c7 # v4.31.9
 
       # 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@fe4161a26a8629af62121b670040955b330f9af2 # v4.31.6
+        uses: github/codeql-action/analyze@5d4e8d1aca955e8d8589aabd499c5cae939e33c7 # v4.31.9

.github/workflows/test.yml

@@ -325,6 +325,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Install latest version
+        id: setup-uv
         uses: ./
         with:
           python-version: 3.13.1t
@@ -335,6 +336,14 @@ jobs:
             exit 1
           fi
         shell: bash
+      - name: Verify output python-version is correct
+        run: |
+          if [ "$PYTHON_VERSION" != "3.13.1t" ]; then
+            exit 1
+          fi
+        shell: bash
+        env:
+          PYTHON_VERSION: ${{ steps.setup-uv.outputs.python-version }}
       - run: uv sync
         working-directory: __tests__/fixtures/uv-project
 
@@ -986,7 +995,7 @@ jobs:
             exit 1
           fi
         env:
-          CACHE_HIT: ${{ steps.restore.outputs.cache-hit }}
+          CACHE_HIT: ${{ steps.restore.outputs.python-cache-hit }}
       - run: uv sync --managed-python
         working-directory: __tests__/fixtures/uv-project
 
@@ -1033,6 +1042,15 @@ jobs:
         env:
           GH_TOKEN: ${{ github.token }}
 
+  validate-typings:
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          persist-credentials: false
+      - name: Validate typings
+        uses: typesafegithub/github-actions-typing@184d97003b1300f6a10e286eb98c191e416ff02b # v2.2.1
+
   all-tests-passed:
     runs-on: ubuntu-latest
     needs:
@@ -1081,6 +1099,7 @@ jobs:
       - test-restore-python-installs
       - test-python-install-dir
       - test-act
+      - validate-typings
     if: always()
     steps:
       - name: All tests passed

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

@@ -27,7 +27,6 @@ jobs:
           node dist/update-known-versions/index.js
           src/download/checksum/known-checksums.ts
           version-manifest.json
-          ${{ secrets.GITHUB_TOKEN }}
       - name: Check for changes
         id: changes-exist
         run: |
@@ -55,7 +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@84ae59a2cdc2258d6fa0732dd66352dddae2a412 # v7.0.9
+        uses: peter-evans/create-pull-request@98357b18bf14b5342f975ff684046ec3b2a07725 # v8.0.0
         with:
           commit-message: "chore: update known checksums"
           title:

AGENTS.md

@@ -0,0 +1 @@
+.github/copilot-instructions.md

README.md

@@ -125,6 +125,8 @@ Have a look under [Advanced Configuration](#advanced-configuration) for detailed
 - `uvx-path`: The path to the installed uvx binary.
 - `cache-hit`: A boolean value to indicate a cache entry was found.
 - `venv`: Path to the activated venv if activate-environment is true.
+- `python-version`: The Python version that was set.
+- `python-cache-hit`: A boolean value to indicate the Python cache entry was found.
 
 ### Python version
 
@@ -200,7 +202,8 @@ by name (`uv`).
 With `setup-uv`, you can install a specific version of Python using `uv python install` rather than
 relying on `actions/setup-python`.
 
-Using `actions/setup-python` can be faster, because GitHub caches the Python versions alongside the runner.
+Using `actions/setup-python` can be faster (~1s), because GitHub includes several Python versions in the runner image
+which are available to get activated by `actions/setup-python` without having to download them.
 
 For example:
 

__tests__/download/versions-client.test.ts

@@ -0,0 +1,142 @@
+import { beforeEach, describe, expect, it, jest } from "@jest/globals";
+
+// biome-ignore lint/suspicious/noExplicitAny: mock needs flexible typing
+const mockFetch = jest.fn<any>();
+jest.mock("../../src/utils/fetch", () => ({
+  fetch: mockFetch,
+}));
+
+import {
+  clearCache,
+  fetchVersionData,
+  getAllVersions,
+  getArtifact,
+  getLatestVersion,
+} from "../../src/download/versions-client";
+
+const sampleNdjsonResponse = `{"version":"0.9.26","artifacts":[{"platform":"aarch64-apple-darwin","variant":"default","url":"https://github.com/astral-sh/uv/releases/download/0.9.26/uv-aarch64-apple-darwin.tar.gz","archive_format":"tar.gz","sha256":"fcf0a9ea6599c6ae28a4c854ac6da76f2c889354d7c36ce136ef071f7ab9721f"},{"platform":"x86_64-pc-windows-msvc","variant":"default","url":"https://github.com/astral-sh/uv/releases/download/0.9.26/uv-x86_64-pc-windows-msvc.zip","archive_format":"zip","sha256":"eb02fd95d8e0eed462b4a67ecdd320d865b38c560bffcda9a0b87ec944bdf036"}]}
+{"version":"0.9.25","artifacts":[{"platform":"aarch64-apple-darwin","variant":"default","url":"https://github.com/astral-sh/uv/releases/download/0.9.25/uv-aarch64-apple-darwin.tar.gz","archive_format":"tar.gz","sha256":"606b3c6949d971709f2526fa0d9f0fd23ccf60e09f117999b406b424af18a6a6"}]}`;
+
+function createMockResponse(
+  ok: boolean,
+  status: number,
+  statusText: string,
+  data: string,
+) {
+  return {
+    ok,
+    status,
+    statusText,
+    text: async () => data,
+  };
+}
+
+describe("versions-client", () => {
+  beforeEach(() => {
+    clearCache();
+    mockFetch.mockReset();
+  });
+
+  describe("fetchVersionData", () => {
+    it("should fetch and parse NDJSON data", async () => {
+      mockFetch.mockResolvedValue(
+        createMockResponse(true, 200, "OK", sampleNdjsonResponse),
+      );
+
+      const versions = await fetchVersionData();
+
+      expect(versions).toHaveLength(2);
+      expect(versions[0].version).toBe("0.9.26");
+      expect(versions[1].version).toBe("0.9.25");
+    });
+
+    it("should throw error on failed fetch", async () => {
+      mockFetch.mockResolvedValue(
+        createMockResponse(false, 500, "Internal Server Error", ""),
+      );
+
+      await expect(fetchVersionData()).rejects.toThrow(
+        "Failed to fetch version data: 500 Internal Server Error",
+      );
+    });
+
+    it("should cache results", async () => {
+      mockFetch.mockResolvedValue(
+        createMockResponse(true, 200, "OK", sampleNdjsonResponse),
+      );
+
+      await fetchVersionData();
+      await fetchVersionData();
+
+      expect(mockFetch).toHaveBeenCalledTimes(1);
+    });
+  });
+
+  describe("getLatestVersion", () => {
+    it("should return the first version (newest)", async () => {
+      mockFetch.mockResolvedValue(
+        createMockResponse(true, 200, "OK", sampleNdjsonResponse),
+      );
+
+      const latest = await getLatestVersion();
+
+      expect(latest).toBe("0.9.26");
+    });
+  });
+
+  describe("getAllVersions", () => {
+    it("should return all version strings", async () => {
+      mockFetch.mockResolvedValue(
+        createMockResponse(true, 200, "OK", sampleNdjsonResponse),
+      );
+
+      const versions = await getAllVersions();
+
+      expect(versions).toEqual(["0.9.26", "0.9.25"]);
+    });
+  });
+
+  describe("getArtifact", () => {
+    beforeEach(() => {
+      mockFetch.mockResolvedValue(
+        createMockResponse(true, 200, "OK", sampleNdjsonResponse),
+      );
+    });
+
+    it("should find artifact by version and platform", async () => {
+      const artifact = await getArtifact("0.9.26", "aarch64", "apple-darwin");
+
+      expect(artifact).toEqual({
+        sha256:
+          "fcf0a9ea6599c6ae28a4c854ac6da76f2c889354d7c36ce136ef071f7ab9721f",
+        url: "https://github.com/astral-sh/uv/releases/download/0.9.26/uv-aarch64-apple-darwin.tar.gz",
+      });
+    });
+
+    it("should find Windows artifact", async () => {
+      const artifact = await getArtifact("0.9.26", "x86_64", "pc-windows-msvc");
+
+      expect(artifact).toEqual({
+        sha256:
+          "eb02fd95d8e0eed462b4a67ecdd320d865b38c560bffcda9a0b87ec944bdf036",
+        url: "https://github.com/astral-sh/uv/releases/download/0.9.26/uv-x86_64-pc-windows-msvc.zip",
+      });
+    });
+
+    it("should return undefined for unknown version", async () => {
+      const artifact = await getArtifact("0.0.1", "aarch64", "apple-darwin");
+
+      expect(artifact).toBeUndefined();
+    });
+
+    it("should return undefined for unknown platform", async () => {
+      const artifact = await getArtifact(
+        "0.9.26",
+        "aarch64",
+        "unknown-linux-musl",
+      );
+
+      expect(artifact).toBeUndefined();
+    });
+  });
+});

__tests__/fixtures/old-python-constraint-project/pyproject.toml

@@ -9,5 +9,5 @@ dependencies = [
 ]
 
 [build-system]
-requires = ["hatchling"]
+requires = ["uv_build>=0.9.22,<0.10.0"]
-build-backend = "hatchling.build"
+build-backend = "uv_build"

__tests__/fixtures/old-python-constraint-project/uv.lock

@@ -1,33 +1,9 @@
 version = 1
-requires-python = ">=3.12"
+revision = 3
+requires-python = ">=3.8, <=3.9"
 
 [[package]]
-name = "ruff"
+name = "old-python-constraint-project"
-version = "0.6.2"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/23/f4/279d044f66b79261fd37df76bf72b64471afab5d3b7906a01499c4451910/ruff-0.6.2.tar.gz", hash = "sha256:239ee6beb9e91feb8e0ec384204a763f36cb53fb895a1a364618c6abb076b3be", size = 2460281 }
-wheels = [
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-]
-
-[[package]]
-name = "uv-project"
 version = "0.1.0"
 source = { editable = "." }
 dependencies = [
@@ -35,4 +11,30 @@ dependencies = [
 ]
 
 [package.metadata]
-requires-dist = [{ name = "ruff" }]
+requires-dist = [{ name = "ruff", specifier = ">=0.6.2" }]
+
+[[package]]
+name = "ruff"
+version = "0.14.10"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/57/08/52232a877978dd8f9cf2aeddce3e611b40a63287dfca29b6b8da791f5e8d/ruff-0.14.10.tar.gz", hash = "sha256:9a2e830f075d1a42cd28420d7809ace390832a490ed0966fe373ba288e77aaf4", size = 5859763, upload-time = "2025-12-18T19:28:57.98Z" }
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+]

action-types.yml

@@ -0,0 +1,75 @@
+# See https://github.com/typesafegithub/github-actions-typing
+
+inputs:
+  version:
+    type: string
+  version-file:
+    type: string
+  python-version:
+    type: string
+  activate-environment:
+    type: boolean
+  working-directory:
+    type: string
+  checksum:
+    type: string
+  github-token:
+    type: string
+  enable-cache:
+    type: enum
+    allowed-values:
+      - "true"
+      - "false"
+      - auto
+  cache-dependency-glob:
+    type: list
+    separator: "\n"
+    list-item:
+      type: string
+  restore-cache:
+    type: boolean
+  save-cache:
+    type: boolean
+  cache-suffix:
+    type: string
+  cache-local-path:
+    type: string
+  prune-cache:
+    type: boolean
+  cache-python:
+    type: boolean
+  ignore-nothing-to-cache:
+    type: boolean
+  ignore-empty-workdir:
+    type: boolean
+  tool-dir:
+    type: string
+  tool-bin-dir:
+    type: string
+  manifest-file:
+    type: string
+  add-problem-matchers:
+    type: boolean
+  resolution-strategy:
+    type: enum
+    allowed-values:
+      - highest
+      - lowest
+
+outputs:
+  uv-version:
+    type: string
+  uv-path:
+    type: string
+  uvx-path:
+    type: string
+  cache-hit:
+    type: boolean
+  cache-key:
+    type: string
+  venv:
+    type: string
+  python-version:
+    type: string
+  python-cache-hit:
+    type: boolean

action.yml

@@ -93,6 +93,10 @@ outputs:
     description: "The cache key used for storing/restoring the cache"
   venv:
     description: "Path to the activated venv if activate-environment is true"
+  python-version:
+    description: "The Python version that was set."
+  python-cache-hit:
+    description: "A boolean value to indicate the Python cache entry was found"
 runs:
   using: "node24"
   main: "dist/setup/index.js"

dist/save-cache/index.js

@@ -90599,46 +90599,52 @@ var __importStar = (this && this.__importStar) || (function () {
     };
 })();
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.STATE_CACHE_MATCHED_KEY = exports.STATE_CACHE_KEY = void 0;
+exports.STATE_PYTHON_CACHE_MATCHED_KEY = exports.STATE_CACHE_MATCHED_KEY = exports.STATE_CACHE_KEY = void 0;
 exports.restoreCache = restoreCache;
 const cache = __importStar(__nccwpck_require__(5116));
 const core = __importStar(__nccwpck_require__(7484));
-const exec = __importStar(__nccwpck_require__(5236));
 const hash_files_1 = __nccwpck_require__(9660);
 const inputs_1 = __nccwpck_require__(9612);
 const platforms_1 = __nccwpck_require__(8361);
 exports.STATE_CACHE_KEY = "cache-key";
 exports.STATE_CACHE_MATCHED_KEY = "cache-matched-key";
+exports.STATE_PYTHON_CACHE_MATCHED_KEY = "python-cache-matched-key";
 const CACHE_VERSION = "2";
-async function restoreCache() {
+async function restoreCache(pythonVersion) {
-    const cacheKey = await computeKeys();
+    const cacheKey = await computeKeys(pythonVersion);
     core.saveState(exports.STATE_CACHE_KEY, cacheKey);
     core.setOutput("cache-key", cacheKey);
     if (!inputs_1.restoreCache) {
         core.info("restore-cache is false. Skipping restore cache step.");
+        core.setOutput("python-cache-hit", false);
         return;
     }
-    let matchedKey;
-    core.info(`Trying to restore uv cache from GitHub Actions cache with key: ${cacheKey}`);
     if (inputs_1.cacheLocalPath === undefined) {
         throw new Error("cache-local-path is not set. Cannot restore cache without a valid cache path.");
     }
-    const cachePaths = [inputs_1.cacheLocalPath.path];
+    await restoreCacheFromKey(cacheKey, inputs_1.cacheLocalPath.path, exports.STATE_CACHE_MATCHED_KEY, "cache-hit");
     if (inputs_1.cachePython) {
-        cachePaths.push(inputs_1.pythonDir);
+        await restoreCacheFromKey(`${cacheKey}-python`, inputs_1.pythonDir, exports.STATE_PYTHON_CACHE_MATCHED_KEY, "python-cache-hit");
     }
+    else {
+        core.setOutput("python-cache-hit", false);
+    }
+}
+async function restoreCacheFromKey(cacheKey, cachePath, stateKey, outputKey) {
+    core.info(`Trying to restore cache from GitHub Actions cache with key: ${cacheKey}`);
+    let matchedKey;
     try {
-        matchedKey = await cache.restoreCache(cachePaths, cacheKey);
+        matchedKey = await cache.restoreCache([cachePath], cacheKey);
     }
     catch (err) {
         const message = err.message;
         core.warning(message);
-        core.setOutput("cache-hit", false);
+        core.setOutput(outputKey, false);
         return;
     }
-    handleMatchResult(matchedKey, cacheKey);
+    handleMatchResult(matchedKey, cacheKey, stateKey, outputKey);
 }
-async function computeKeys() {
+async function computeKeys(pythonVersion) {
     let cacheDependencyPathHash = "-";
     if (inputs_1.cacheDependencyGlob !== "") {
         core.info(`Searching files using cache dependency glob: ${inputs_1.cacheDependencyGlob.split("\n").join(",")}`);
@@ -90651,50 +90657,22 @@ async function computeKeys() {
         cacheDependencyPathHash = "-no-dependency-glob";
     }
     const suffix = inputs_1.cacheSuffix ? `-${inputs_1.cacheSuffix}` : "";
-    const pythonVersion = await getPythonVersion();
+    const version = pythonVersion ?? "unknown";
     const platform = await (0, platforms_1.getPlatform)();
     const osNameVersion = (0, platforms_1.getOSNameVersion)();
     const pruned = inputs_1.pruneCache ? "-pruned" : "";
     const python = inputs_1.cachePython ? "-py" : "";
-    return `setup-uv-${CACHE_VERSION}-${(0, platforms_1.getArch)()}-${platform}-${osNameVersion}-${pythonVersion}${pruned}${python}${cacheDependencyPathHash}${suffix}`;
+    return `setup-uv-${CACHE_VERSION}-${(0, platforms_1.getArch)()}-${platform}-${osNameVersion}-${version}${pruned}${python}${cacheDependencyPathHash}${suffix}`;
 }
-async function getPythonVersion() {
+function handleMatchResult(matchedKey, primaryKey, stateKey, outputKey) {
-    if (inputs_1.pythonVersion !== "") {
-        return inputs_1.pythonVersion;
-    }
-    let output = "";
-    const options = {
-        listeners: {
-            stdout: (data) => {
-                output += data.toString();
-            },
-        },
-        silent: !core.isDebug(),
-    };
-    try {
-        const execArgs = ["python", "find", "--directory", inputs_1.workingDirectory];
-        await exec.exec("uv", execArgs, options);
-        const pythonPath = output.trim();
-        output = "";
-        await exec.exec(pythonPath, ["--version"], options);
-        // output is like "Python 3.8.10"
-        return output.split(" ")[1].trim();
-    }
-    catch (error) {
-        const err = error;
-        core.debug(`Failed to get python version from uv. Error: ${err.message}`);
-        return "unknown";
-    }
-}
-function handleMatchResult(matchedKey, primaryKey) {
     if (!matchedKey) {
         core.info(`No GitHub Actions cache found for key: ${primaryKey}`);
-        core.setOutput("cache-hit", false);
+        core.setOutput(outputKey, false);
         return;
     }
-    core.saveState(exports.STATE_CACHE_MATCHED_KEY, matchedKey);
+    core.saveState(stateKey, matchedKey);
-    core.info(`uv cache restored from GitHub Actions cache with key: ${matchedKey}`);
+    core.info(`cache restored from GitHub Actions cache with key: ${matchedKey}`);
-    core.setOutput("cache-hit", true);
+    core.setOutput(outputKey, true);
 }
 
 
@@ -90868,46 +90846,17 @@ async function saveCache() {
     }
     if (matchedKey === cacheKey) {
         core.info(`Cache hit occurred on key ${cacheKey}, not saving cache.`);
-        return;
     }
+    else {
         if (inputs_1.pruneCache) {
             await pruneCache();
         }
-    if (inputs_1.cacheLocalPath === undefined) {
+        const actualCachePath = getUvCachePath();
-        throw new Error("cache-local-path is not set. Cannot save cache without a valid cache path.");
+        await saveCacheToKey(cacheKey, actualCachePath, restore_cache_1.STATE_CACHE_MATCHED_KEY, "uv cache", `Cache path ${actualCachePath} does not exist on disk. This likely indicates that there are no dependencies to cache. Consider disabling the cache input if it is not needed.`);
     }
-    let actualCachePath = inputs_1.cacheLocalPath.path;
-    if (process.env.UV_CACHE_DIR &&
-        process.env.UV_CACHE_DIR !== inputs_1.cacheLocalPath.path) {
-        core.warning(`The environment variable UV_CACHE_DIR has been changed to "${process.env.UV_CACHE_DIR}", by an action or step running after astral-sh/setup-uv. This can lead to unexpected behavior. If you expected this to happen set the cache-local-path input to "${process.env.UV_CACHE_DIR}" instead of "${inputs_1.cacheLocalPath.path}".`);
-        actualCachePath = process.env.UV_CACHE_DIR;
-    }
-    core.info(`Saving cache path: ${actualCachePath}`);
-    if (!fs.existsSync(actualCachePath) && !inputs_1.ignoreNothingToCache) {
-        throw new Error(`Cache path ${actualCachePath} does not exist on disk. This likely indicates that there are no dependencies to cache. Consider disabling the cache input if it is not needed.`);
-    }
-    const cachePaths = [actualCachePath];
     if (inputs_1.cachePython) {
-        core.info(`Including Python cache path: ${inputs_1.pythonDir}`);
+        const pythonCacheKey = `${cacheKey}-python`;
-        if (!fs.existsSync(inputs_1.pythonDir) && !inputs_1.ignoreNothingToCache) {
+        await saveCacheToKey(pythonCacheKey, inputs_1.pythonDir, restore_cache_1.STATE_PYTHON_CACHE_MATCHED_KEY, "Python cache", `Python cache path ${inputs_1.pythonDir} does not exist on disk. This likely indicates that there are no Python installations to cache. Consider disabling the cache input if it is not needed.`);
-            throw new Error(`Python cache path ${inputs_1.pythonDir} does not exist on disk. This likely indicates that there are no dependencies to cache. Consider disabling the cache input if it is not needed.`);
-        }
-        cachePaths.push(inputs_1.pythonDir);
-    }
-    core.info(`Final cache paths: ${cachePaths.join(", ")}`);
-    try {
-        await cache.saveCache(cachePaths, cacheKey);
-        core.info(`cache saved with the key: ${cacheKey}`);
-    }
-    catch (e) {
-        if (e instanceof Error &&
-            e.message ===
-                "Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved.") {
-            core.info("No cacheable paths were found. Ignoring because ignore-nothing-to-save is enabled.");
-        }
-        else {
-            throw e;
-        }
     }
 }
 async function pruneCache() {
@@ -90923,6 +90872,42 @@ async function pruneCache() {
     const uvPath = core.getState(constants_1.STATE_UV_PATH);
     await exec.exec(uvPath, execArgs, options);
 }
+function getUvCachePath() {
+    if (inputs_1.cacheLocalPath === undefined) {
+        throw new Error("cache-local-path is not set. Cannot save cache without a valid cache path.");
+    }
+    if (process.env.UV_CACHE_DIR &&
+        process.env.UV_CACHE_DIR !== inputs_1.cacheLocalPath.path) {
+        core.warning(`The environment variable UV_CACHE_DIR has been changed to "${process.env.UV_CACHE_DIR}", by an action or step running after astral-sh/setup-uv. This can lead to unexpected behavior. If you expected this to happen set the cache-local-path input to "${process.env.UV_CACHE_DIR}" instead of "${inputs_1.cacheLocalPath.path}".`);
+        return process.env.UV_CACHE_DIR;
+    }
+    return inputs_1.cacheLocalPath.path;
+}
+async function saveCacheToKey(cacheKey, cachePath, stateKey, cacheName, pathNotExistErrorMessage) {
+    const matchedKey = core.getState(stateKey);
+    if (matchedKey === cacheKey) {
+        core.info(`${cacheName} hit occurred on key ${cacheKey}, not saving cache.`);
+        return;
+    }
+    core.info(`Including ${cacheName} path: ${cachePath}`);
+    if (!fs.existsSync(cachePath) && !inputs_1.ignoreNothingToCache) {
+        throw new Error(pathNotExistErrorMessage);
+    }
+    try {
+        await cache.saveCache([cachePath], cacheKey);
+        core.info(`${cacheName} saved with key: ${cacheKey}`);
+    }
+    catch (e) {
+        if (e instanceof Error &&
+            e.message ===
+                "Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved.") {
+            core.info(`No cacheable ${cacheName} paths were found. Ignoring because ignore-nothing-to-save is enabled.`);
+        }
+        else {
+            throw e;
+        }
+    }
+}
 run();
 
 
@@ -90995,12 +90980,13 @@ function getConfigValueFromTomlFile(filePath, key) {
 "use strict";
 
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.STATE_UV_VERSION = exports.STATE_UV_PATH = exports.TOOL_CACHE_NAME = exports.OWNER = exports.REPO = void 0;
+exports.VERSIONS_NDJSON_URL = exports.STATE_UV_VERSION = exports.STATE_UV_PATH = exports.TOOL_CACHE_NAME = exports.OWNER = exports.REPO = void 0;
 exports.REPO = "uv";
 exports.OWNER = "astral-sh";
 exports.TOOL_CACHE_NAME = "uv";
 exports.STATE_UV_PATH = "uv-path";
 exports.STATE_UV_VERSION = "uv-version";
+exports.VERSIONS_NDJSON_URL = "https://raw.githubusercontent.com/astral-sh/versions/main/v1/uv.ndjson";
 
 
 /***/ }),

package-lock.json

@@ -15,9 +15,6 @@
         "@actions/glob": "^0.5.0",
         "@actions/io": "^1.1.3",
         "@actions/tool-cache": "^2.0.2",
-        "@octokit/core": "^7.0.6",
-        "@octokit/plugin-paginate-rest": "^14.0.0",
-        "@octokit/plugin-rest-endpoint-methods": "^17.0.0",
         "@renovatebot/pep440": "^4.2.1",
         "smol-toml": "^1.4.2",
         "undici": "5.28.5"
@@ -412,7 +409,6 @@
       "integrity": "sha512-UlLAnTPrFdNGoFtbSXwcGFQBtQZJCNjaN6hQNP3UPvuNXT1i82N26KL3dZeIpNalWywr9IuQuncaAfUaS1g6sQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@ampproject/remapping": "^2.2.0",
         "@babel/code-frame": "^7.27.1",
@@ -1590,134 +1586,6 @@
         "@tybys/wasm-util": "^0.10.0"
       }
     },
-    "node_modules/@octokit/auth-token": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-6.0.0.tgz",
-      "integrity": "sha512-P4YJBPdPSpWTQ1NU4XYdvHvXJJDxM6YwpS0FZHRgP7YFkdVxsWcpWGy/NVqlAA7PcPCnMacXlRm1y2PFZRWL/w==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 20"
-      }
-    },
-    "node_modules/@octokit/core": {
-      "version": "7.0.6",
-      "resolved": "https://registry.npmjs.org/@octokit/core/-/core-7.0.6.tgz",
-      "integrity": "sha512-DhGl4xMVFGVIyMwswXeyzdL4uXD5OGILGX5N8Y+f6W7LhC1Ze2poSNrkF/fedpVDHEEZ+PHFW0vL14I+mm8K3Q==",
-      "license": "MIT",
-      "peer": true,
-      "dependencies": {
-        "@octokit/auth-token": "^6.0.0",
-        "@octokit/graphql": "^9.0.3",
-        "@octokit/request": "^10.0.6",
-        "@octokit/request-error": "^7.0.2",
-        "@octokit/types": "^16.0.0",
-        "before-after-hook": "^4.0.0",
-        "universal-user-agent": "^7.0.0"
-      },
-      "engines": {
-        "node": ">= 20"
-      }
-    },
-    "node_modules/@octokit/endpoint": {
-      "version": "11.0.2",
-      "resolved": "https://registry.npmjs.org/@octokit/endpoint/-/endpoint-11.0.2.tgz",
-      "integrity": "sha512-4zCpzP1fWc7QlqunZ5bSEjxc6yLAlRTnDwKtgXfcI/FxxGoqedDG8V2+xJ60bV2kODqcGB+nATdtap/XYq2NZQ==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/types": "^16.0.0",
-        "universal-user-agent": "^7.0.2"
-      },
-      "engines": {
-        "node": ">= 20"
-      }
-    },
-    "node_modules/@octokit/graphql": {
-      "version": "9.0.3",
-      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-9.0.3.tgz",
-      "integrity": "sha512-grAEuupr/C1rALFnXTv6ZQhFuL1D8G5y8CN04RgrO4FIPMrtm+mcZzFG7dcBm+nq+1ppNixu+Jd78aeJOYxlGA==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/request": "^10.0.6",
-        "@octokit/types": "^16.0.0",
-        "universal-user-agent": "^7.0.0"
-      },
-      "engines": {
-        "node": ">= 20"
-      }
-    },
-    "node_modules/@octokit/openapi-types": {
-      "version": "27.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-27.0.0.tgz",
-      "integrity": "sha512-whrdktVs1h6gtR+09+QsNk2+FO+49j6ga1c55YZudfEG+oKJVvJLQi3zkOm5JjiUXAagWK2tI2kTGKJ2Ys7MGA==",
-      "license": "MIT"
-    },
-    "node_modules/@octokit/plugin-paginate-rest": {
-      "version": "14.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-14.0.0.tgz",
-      "integrity": "sha512-fNVRE7ufJiAA3XUrha2omTA39M6IXIc6GIZLvlbsm8QOQCYvpq/LkMNGyFlB1d8hTDzsAXa3OKtybdMAYsV/fw==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/types": "^16.0.0"
-      },
-      "engines": {
-        "node": ">= 20"
-      },
-      "peerDependencies": {
-        "@octokit/core": ">=6"
-      }
-    },
-    "node_modules/@octokit/plugin-rest-endpoint-methods": {
-      "version": "17.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-17.0.0.tgz",
-      "integrity": "sha512-B5yCyIlOJFPqUUeiD0cnBJwWJO8lkJs5d8+ze9QDP6SvfiXSz1BF+91+0MeI1d2yxgOhU/O+CvtiZ9jSkHhFAw==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/types": "^16.0.0"
-      },
-      "engines": {
-        "node": ">= 20"
-      },
-      "peerDependencies": {
-        "@octokit/core": ">=6"
-      }
-    },
-    "node_modules/@octokit/request": {
-      "version": "10.0.7",
-      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-10.0.7.tgz",
-      "integrity": "sha512-v93h0i1yu4idj8qFPZwjehoJx4j3Ntn+JhXsdJrG9pYaX6j/XRz2RmasMUHtNgQD39nrv/VwTWSqK0RNXR8upA==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/endpoint": "^11.0.2",
-        "@octokit/request-error": "^7.0.2",
-        "@octokit/types": "^16.0.0",
-        "fast-content-type-parse": "^3.0.0",
-        "universal-user-agent": "^7.0.2"
-      },
-      "engines": {
-        "node": ">= 20"
-      }
-    },
-    "node_modules/@octokit/request-error": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-7.1.0.tgz",
-      "integrity": "sha512-KMQIfq5sOPpkQYajXHwnhjCC0slzCNScLHs9JafXc4RAJI+9f+jNDlBNaIMTvazOPLgb4BnlhGJOTbnN0wIjPw==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/types": "^16.0.0"
-      },
-      "engines": {
-        "node": ">= 20"
-      }
-    },
-    "node_modules/@octokit/types": {
-      "version": "16.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-16.0.0.tgz",
-      "integrity": "sha512-sKq+9r1Mm4efXW1FCk7hFSeJo4QKreL/tTbR0rz/qx/r1Oa2VV83LTA/H/MuCOX7uCIJmQVRKBcbmWoySjAnSg==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/openapi-types": "^27.0.0"
-      }
-    },
     "node_modules/@opentelemetry/api": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/@opentelemetry/api/-/api-1.4.1.tgz",
@@ -2454,12 +2322,6 @@
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
-    "node_modules/before-after-hook": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/before-after-hook/-/before-after-hook-4.0.0.tgz",
-      "integrity": "sha512-q6tR3RPqIB1pMiTRMFcZwuG5T8vwp+vUvEG0vuI6B+Rikh5BfPp2fQ82c925FOs+b0lcFQ8CFrL+KbilfZFhOQ==",
-      "license": "Apache-2.0"
-    },
     "node_modules/brace-expansion": {
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
@@ -2502,7 +2364,6 @@
         }
       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "caniuse-lite": "^1.0.30001733",
         "electron-to-chromium": "^1.5.199",
@@ -3070,22 +2931,6 @@
         "node": "^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0"
       }
     },
-    "node_modules/fast-content-type-parse": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/fast-content-type-parse/-/fast-content-type-parse-3.0.0.tgz",
-      "integrity": "sha512-ZvLdcY8P+N8mGQJahJV5G4U88CSvT1rP8ApL6uETe88MBXrBHAkZlSEySdUlyztF7ccb+Znos3TFqaepHxdhBg==",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/fastify"
-        },
-        {
-          "type": "opencollective",
-          "url": "https://opencollective.com/fastify"
-        }
-      ],
-      "license": "MIT"
-    },
     "node_modules/fast-json-stable-stringify": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
@@ -3630,7 +3475,6 @@
       "integrity": "sha512-F26gjC0yWN8uAA5m5Ss8ZQf5nDHWGlN/xWZIh8S5SRbsEKBovwZhxGd6LJlbZYxBgCYOtreSUyb8hpXyGC5O4A==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@jest/core": "30.2.0",
         "@jest/types": "30.2.0",
@@ -5329,7 +5173,6 @@
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -5370,12 +5213,6 @@
       "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
       "license": "MIT"
     },
-    "node_modules/universal-user-agent": {
-      "version": "7.0.3",
-      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-7.0.3.tgz",
-      "integrity": "sha512-TmnEAEAsBJVZM/AADELsK76llnwcf9vMKuPz8JflO1frO8Lchitr0fNaN9d+Ap0BjKtqWqd/J17qeDnXh8CL2A==",
-      "license": "ISC"
-    },
     "node_modules/unrs-resolver": {
       "version": "1.11.1",
       "resolved": "https://registry.npmjs.org/unrs-resolver/-/unrs-resolver-1.11.1.tgz",
@@ -6072,7 +5909,6 @@
       "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.28.0.tgz",
       "integrity": "sha512-UlLAnTPrFdNGoFtbSXwcGFQBtQZJCNjaN6hQNP3UPvuNXT1i82N26KL3dZeIpNalWywr9IuQuncaAfUaS1g6sQ==",
       "dev": true,
-      "peer": true,
       "requires": {
         "@ampproject/remapping": "^2.2.0",
         "@babel/code-frame": "^7.27.1",
@@ -6887,94 +6723,6 @@
         "@tybys/wasm-util": "^0.10.0"
       }
     },
-    "@octokit/auth-token": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-6.0.0.tgz",
-      "integrity": "sha512-P4YJBPdPSpWTQ1NU4XYdvHvXJJDxM6YwpS0FZHRgP7YFkdVxsWcpWGy/NVqlAA7PcPCnMacXlRm1y2PFZRWL/w=="
-    },
-    "@octokit/core": {
-      "version": "7.0.6",
-      "resolved": "https://registry.npmjs.org/@octokit/core/-/core-7.0.6.tgz",
-      "integrity": "sha512-DhGl4xMVFGVIyMwswXeyzdL4uXD5OGILGX5N8Y+f6W7LhC1Ze2poSNrkF/fedpVDHEEZ+PHFW0vL14I+mm8K3Q==",
-      "peer": true,
-      "requires": {
-        "@octokit/auth-token": "^6.0.0",
-        "@octokit/graphql": "^9.0.3",
-        "@octokit/request": "^10.0.6",
-        "@octokit/request-error": "^7.0.2",
-        "@octokit/types": "^16.0.0",
-        "before-after-hook": "^4.0.0",
-        "universal-user-agent": "^7.0.0"
-      }
-    },
-    "@octokit/endpoint": {
-      "version": "11.0.2",
-      "resolved": "https://registry.npmjs.org/@octokit/endpoint/-/endpoint-11.0.2.tgz",
-      "integrity": "sha512-4zCpzP1fWc7QlqunZ5bSEjxc6yLAlRTnDwKtgXfcI/FxxGoqedDG8V2+xJ60bV2kODqcGB+nATdtap/XYq2NZQ==",
-      "requires": {
-        "@octokit/types": "^16.0.0",
-        "universal-user-agent": "^7.0.2"
-      }
-    },
-    "@octokit/graphql": {
-      "version": "9.0.3",
-      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-9.0.3.tgz",
-      "integrity": "sha512-grAEuupr/C1rALFnXTv6ZQhFuL1D8G5y8CN04RgrO4FIPMrtm+mcZzFG7dcBm+nq+1ppNixu+Jd78aeJOYxlGA==",
-      "requires": {
-        "@octokit/request": "^10.0.6",
-        "@octokit/types": "^16.0.0",
-        "universal-user-agent": "^7.0.0"
-      }
-    },
-    "@octokit/openapi-types": {
-      "version": "27.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-27.0.0.tgz",
-      "integrity": "sha512-whrdktVs1h6gtR+09+QsNk2+FO+49j6ga1c55YZudfEG+oKJVvJLQi3zkOm5JjiUXAagWK2tI2kTGKJ2Ys7MGA=="
-    },
-    "@octokit/plugin-paginate-rest": {
-      "version": "14.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-14.0.0.tgz",
-      "integrity": "sha512-fNVRE7ufJiAA3XUrha2omTA39M6IXIc6GIZLvlbsm8QOQCYvpq/LkMNGyFlB1d8hTDzsAXa3OKtybdMAYsV/fw==",
-      "requires": {
-        "@octokit/types": "^16.0.0"
-      }
-    },
-    "@octokit/plugin-rest-endpoint-methods": {
-      "version": "17.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-17.0.0.tgz",
-      "integrity": "sha512-B5yCyIlOJFPqUUeiD0cnBJwWJO8lkJs5d8+ze9QDP6SvfiXSz1BF+91+0MeI1d2yxgOhU/O+CvtiZ9jSkHhFAw==",
-      "requires": {
-        "@octokit/types": "^16.0.0"
-      }
-    },
-    "@octokit/request": {
-      "version": "10.0.7",
-      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-10.0.7.tgz",
-      "integrity": "sha512-v93h0i1yu4idj8qFPZwjehoJx4j3Ntn+JhXsdJrG9pYaX6j/XRz2RmasMUHtNgQD39nrv/VwTWSqK0RNXR8upA==",
-      "requires": {
-        "@octokit/endpoint": "^11.0.2",
-        "@octokit/request-error": "^7.0.2",
-        "@octokit/types": "^16.0.0",
-        "fast-content-type-parse": "^3.0.0",
-        "universal-user-agent": "^7.0.2"
-      }
-    },
-    "@octokit/request-error": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-7.1.0.tgz",
-      "integrity": "sha512-KMQIfq5sOPpkQYajXHwnhjCC0slzCNScLHs9JafXc4RAJI+9f+jNDlBNaIMTvazOPLgb4BnlhGJOTbnN0wIjPw==",
-      "requires": {
-        "@octokit/types": "^16.0.0"
-      }
-    },
-    "@octokit/types": {
-      "version": "16.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-16.0.0.tgz",
-      "integrity": "sha512-sKq+9r1Mm4efXW1FCk7hFSeJo4QKreL/tTbR0rz/qx/r1Oa2VV83LTA/H/MuCOX7uCIJmQVRKBcbmWoySjAnSg==",
-      "requires": {
-        "@octokit/openapi-types": "^27.0.0"
-      }
-    },
     "@opentelemetry/api": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/@opentelemetry/api/-/api-1.4.1.tgz",
@@ -7475,11 +7223,6 @@
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
-    "before-after-hook": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/before-after-hook/-/before-after-hook-4.0.0.tgz",
-      "integrity": "sha512-q6tR3RPqIB1pMiTRMFcZwuG5T8vwp+vUvEG0vuI6B+Rikh5BfPp2fQ82c925FOs+b0lcFQ8CFrL+KbilfZFhOQ=="
-    },
     "brace-expansion": {
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
@@ -7503,7 +7246,6 @@
       "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.25.2.tgz",
       "integrity": "sha512-0si2SJK3ooGzIawRu61ZdPCO1IncZwS8IzuX73sPZsXW6EQ/w/DAfPyKI8l1ETTCr2MnvqWitmlCUxgdul45jA==",
       "dev": true,
-      "peer": true,
       "requires": {
         "caniuse-lite": "^1.0.30001733",
         "electron-to-chromium": "^1.5.199",
@@ -7881,11 +7623,6 @@
         "jest-util": "30.2.0"
       }
     },
-    "fast-content-type-parse": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/fast-content-type-parse/-/fast-content-type-parse-3.0.0.tgz",
-      "integrity": "sha512-ZvLdcY8P+N8mGQJahJV5G4U88CSvT1rP8ApL6uETe88MBXrBHAkZlSEySdUlyztF7ccb+Znos3TFqaepHxdhBg=="
-    },
     "fast-json-stable-stringify": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
@@ -8250,7 +7987,6 @@
       "resolved": "https://registry.npmjs.org/jest/-/jest-30.2.0.tgz",
       "integrity": "sha512-F26gjC0yWN8uAA5m5Ss8ZQf5nDHWGlN/xWZIh8S5SRbsEKBovwZhxGd6LJlbZYxBgCYOtreSUyb8hpXyGC5O4A==",
       "dev": true,
-      "peer": true,
       "requires": {
         "@jest/core": "30.2.0",
         "@jest/types": "30.2.0",
@@ -9398,8 +9134,7 @@
       "version": "5.9.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
-      "dev": true,
+      "dev": true
-      "peer": true
     },
     "uglify-js": {
       "version": "3.19.3",
@@ -9421,11 +9156,6 @@
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
       "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw=="
     },
-    "universal-user-agent": {
-      "version": "7.0.3",
-      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-7.0.3.tgz",
-      "integrity": "sha512-TmnEAEAsBJVZM/AADELsK76llnwcf9vMKuPz8JflO1frO8Lchitr0fNaN9d+Ap0BjKtqWqd/J17qeDnXh8CL2A=="
-    },
     "unrs-resolver": {
       "version": "1.11.1",
       "resolved": "https://registry.npmjs.org/unrs-resolver/-/unrs-resolver-1.11.1.tgz",

package.json

@@ -10,7 +10,7 @@
     "package": "ncc build -o dist/setup src/setup-uv.ts && ncc build -o dist/save-cache src/save-cache.ts && ncc build -o dist/update-known-versions src/update-known-versions.ts",
     "test": "jest",
     "act": "act pull_request -W .github/workflows/test.yml --container-architecture linux/amd64 -s GITHUB_TOKEN=\"$(gh auth token)\"",
-    "update-known-versions": "RUNNER_TEMP=known_versions node dist/update-known-versions/index.js src/download/checksum/known-versions.ts \"$(gh auth token)\"",
+    "update-known-versions": "RUNNER_TEMP=known_versions node dist/update-known-versions/index.js src/download/checksum/known-checksums.ts version-manifest.json",
     "all": "npm run build && npm run check && npm run package && npm test"
   },
   "repository": {
@@ -32,9 +32,6 @@
     "@actions/glob": "^0.5.0",
     "@actions/io": "^1.1.3",
     "@actions/tool-cache": "^2.0.2",
-    "@octokit/core": "^7.0.6",
-    "@octokit/plugin-paginate-rest": "^14.0.0",
-    "@octokit/plugin-rest-endpoint-methods": "^17.0.0",
     "@renovatebot/pep440": "^4.2.1",
     "smol-toml": "^1.4.2",
     "undici": "5.28.5"

src/cache/restore-cache.ts

@@ -1,6 +1,5 @@
 import * as cache from "@actions/cache";
 import * as core from "@actions/core";
-import * as exec from "@actions/exec";
 import { hashFiles } from "../hash/hash-files";
 import {
   cacheDependencyGlob,
@@ -9,52 +8,75 @@ import {
   cacheSuffix,
   pruneCache,
   pythonDir,
-  pythonVersion as pythonVersionInput,
   restoreCache as shouldRestoreCache,
-  workingDirectory,
 } from "../utils/inputs";
 import { getArch, getOSNameVersion, getPlatform } from "../utils/platforms";
 
 export const STATE_CACHE_KEY = "cache-key";
 export const STATE_CACHE_MATCHED_KEY = "cache-matched-key";
+export const STATE_PYTHON_CACHE_MATCHED_KEY = "python-cache-matched-key";
+
 const CACHE_VERSION = "2";
 
-export async function restoreCache(): Promise<void> {
+export async function restoreCache(pythonVersion?: string): Promise<void> {
-  const cacheKey = await computeKeys();
+  const cacheKey = await computeKeys(pythonVersion);
   core.saveState(STATE_CACHE_KEY, cacheKey);
   core.setOutput("cache-key", cacheKey);
 
   if (!shouldRestoreCache) {
     core.info("restore-cache is false. Skipping restore cache step.");
+    core.setOutput("python-cache-hit", false);
     return;
   }
 
-  let matchedKey: string | undefined;
-  core.info(
-    `Trying to restore uv cache from GitHub Actions cache with key: ${cacheKey}`,
-  );
   if (cacheLocalPath === undefined) {
     throw new Error(
       "cache-local-path is not set. Cannot restore cache without a valid cache path.",
     );
   }
-  const cachePaths = [cacheLocalPath.path];
+
+  await restoreCacheFromKey(
+    cacheKey,
+    cacheLocalPath.path,
+    STATE_CACHE_MATCHED_KEY,
+    "cache-hit",
+  );
+
   if (cachePython) {
-    cachePaths.push(pythonDir);
+    await restoreCacheFromKey(
+      `${cacheKey}-python`,
+      pythonDir,
+      STATE_PYTHON_CACHE_MATCHED_KEY,
+      "python-cache-hit",
+    );
+  } else {
+    core.setOutput("python-cache-hit", false);
   }
+}
+
+async function restoreCacheFromKey(
+  cacheKey: string,
+  cachePath: string,
+  stateKey: string,
+  outputKey: string,
+): Promise<void> {
+  core.info(
+    `Trying to restore cache from GitHub Actions cache with key: ${cacheKey}`,
+  );
+  let matchedKey: string | undefined;
   try {
-    matchedKey = await cache.restoreCache(cachePaths, cacheKey);
+    matchedKey = await cache.restoreCache([cachePath], cacheKey);
   } catch (err) {
     const message = (err as Error).message;
     core.warning(message);
-    core.setOutput("cache-hit", false);
+    core.setOutput(outputKey, false);
     return;
   }
 
-  handleMatchResult(matchedKey, cacheKey);
+  handleMatchResult(matchedKey, cacheKey, stateKey, outputKey);
 }
 
-async function computeKeys(): Promise<string> {
+async function computeKeys(pythonVersion?: string): Promise<string> {
   let cacheDependencyPathHash = "-";
   if (cacheDependencyGlob !== "") {
     core.info(
@@ -71,58 +93,27 @@ async function computeKeys(): Promise<string> {
     cacheDependencyPathHash = "-no-dependency-glob";
   }
   const suffix = cacheSuffix ? `-${cacheSuffix}` : "";
-  const pythonVersion = await getPythonVersion();
+  const version = pythonVersion ?? "unknown";
   const platform = await getPlatform();
   const osNameVersion = getOSNameVersion();
   const pruned = pruneCache ? "-pruned" : "";
   const python = cachePython ? "-py" : "";
-  return `setup-uv-${CACHE_VERSION}-${getArch()}-${platform}-${osNameVersion}-${pythonVersion}${pruned}${python}${cacheDependencyPathHash}${suffix}`;
+  return `setup-uv-${CACHE_VERSION}-${getArch()}-${platform}-${osNameVersion}-${version}${pruned}${python}${cacheDependencyPathHash}${suffix}`;
-}
-
-async function getPythonVersion(): Promise<string> {
-  if (pythonVersionInput !== "") {
-    return pythonVersionInput;
-  }
-
-  let output = "";
-  const options: exec.ExecOptions = {
-    listeners: {
-      stdout: (data: Buffer) => {
-        output += data.toString();
-      },
-    },
-    silent: !core.isDebug(),
-  };
-
-  try {
-    const execArgs = ["python", "find", "--directory", workingDirectory];
-    await exec.exec("uv", execArgs, options);
-    const pythonPath = output.trim();
-
-    output = "";
-    await exec.exec(pythonPath, ["--version"], options);
-    // output is like "Python 3.8.10"
-    return output.split(" ")[1].trim();
-  } catch (error) {
-    const err = error as Error;
-    core.debug(`Failed to get python version from uv. Error: ${err.message}`);
-    return "unknown";
-  }
 }
 
 function handleMatchResult(
   matchedKey: string | undefined,
   primaryKey: string,
+  stateKey: string,
+  outputKey: string,
 ): void {
   if (!matchedKey) {
     core.info(`No GitHub Actions cache found for key: ${primaryKey}`);
-    core.setOutput("cache-hit", false);
+    core.setOutput(outputKey, false);
     return;
   }
 
-  core.saveState(STATE_CACHE_MATCHED_KEY, matchedKey);
+  core.saveState(stateKey, matchedKey);
-  core.info(
+  core.info(`cache restored from GitHub Actions cache with key: ${matchedKey}`);
-    `uv cache restored from GitHub Actions cache with key: ${matchedKey}`,
+  core.setOutput(outputKey, true);
-  );
-  core.setOutput("cache-hit", true);
 }

src/download/checksum/checksum.ts

@@ -11,28 +11,36 @@ export async function validateChecksum(
   arch: Architecture,
   platform: Platform,
   version: string,
+  ndjsonChecksum?: string,
 ): Promise<void> {
-  let isValid: boolean | undefined;
+  // Priority: user-provided checksum > KNOWN_CHECKSUMS > NDJSON fallback
-  if (checkSum !== undefined && checkSum !== "") {
-    isValid = await validateFileCheckSum(downloadPath, checkSum);
-  } else {
-    core.debug("Checksum not provided. Checking known checksums.");
   const key = `${arch}-${platform}-${version}`;
-    if (key in KNOWN_CHECKSUMS) {
+  let checksumToUse: string | undefined;
-      const knownChecksum = KNOWN_CHECKSUMS[`${arch}-${platform}-${version}`];
+  let source: string;
-      core.debug(`Checking checksum for ${arch}-${platform}-${version}.`);
+
-      isValid = await validateFileCheckSum(downloadPath, knownChecksum);
+  if (checkSum !== undefined && checkSum !== "") {
+    checksumToUse = checkSum;
+    source = "user-provided";
+  } else if (key in KNOWN_CHECKSUMS) {
+    checksumToUse = KNOWN_CHECKSUMS[key];
+    source = `known checksum for ${key}`;
+  } else if (ndjsonChecksum !== undefined && ndjsonChecksum !== "") {
+    checksumToUse = ndjsonChecksum;
+    source = "NDJSON version data";
   } else {
-      core.debug(`No known checksum found for ${key}.`);
+    core.debug(`No checksum found for ${key}.`);
-    }
+    return;
   }
 
-  if (isValid === false) {
+  core.debug(`Using ${source}.`);
-    throw new Error(`Checksum for ${downloadPath} did not match ${checkSum}.`);
+  const isValid = await validateFileCheckSum(downloadPath, checksumToUse);
+
+  if (!isValid) {
+    throw new Error(
+      `Checksum for ${downloadPath} did not match ${checksumToUse}.`,
+    );
   }
-  if (isValid === true) {
   core.debug(`Checksum for ${downloadPath} is valid.`);
-  }
 }
 
 async function validateFileCheckSum(

src/download/checksum/known-checksums.ts

@@ -1,5 +1,293 @@
 // AUTOGENERATED_DO_NOT_EDIT
 export const KNOWN_CHECKSUMS: { [key: string]: string } = {
+  "aarch64-apple-darwin-0.9.26":
+    "fcf0a9ea6599c6ae28a4c854ac6da76f2c889354d7c36ce136ef071f7ab9721f",
+  "aarch64-pc-windows-msvc-0.9.26":
+    "79e1398ec98681b1b0494ed3485b0f4565e98a7db109a3f205d0fcdc6a1992f7",
+  "aarch64-unknown-linux-gnu-0.9.26":
+    "f71040c59798f79c44c08a7a1c1af7de95a8d334ea924b47b67ad6b9632be270",
+  "aarch64-unknown-linux-musl-0.9.26":
+    "ba8698c36c00c22efed4bd3506339b03c95604d001f02eaf6fbc814c9224d801",
+  "arm-unknown-linux-musleabihf-0.9.26":
+    "8baa850e6f7a4f8edeef411891780161e95682bf291c85405fdc331925c425c2",
+  "armv7-unknown-linux-gnueabihf-0.9.26":
+    "f9cf9806b3bd434b4aca5de1a8412502a29bcbc908848cdea18e32480964ab79",
+  "armv7-unknown-linux-musleabihf-0.9.26":
+    "881df52998da192f0609be37abe445ab0d89f28daceecb171ea8a14088153aee",
+  "i686-pc-windows-msvc-0.9.26":
+    "2fa5e36d7dc3053962a95a2583b2bcc19aab2ec6c5d4c887cca58de819cf77dd",
+  "i686-unknown-linux-gnu-0.9.26":
+    "03548a2abd1d604724c9d65184b506d3eafef1b0a7d8cea974a083f5f9c9496f",
+  "i686-unknown-linux-musl-0.9.26":
+    "5208601b9baee1a04a604f441bd94a1ab91b511f142b27729b073f4286994f8f",
+  "powerpc64-unknown-linux-gnu-0.9.26":
+    "6ac6baa2dd7db742ff58a2d54e3fc09693e69c878666bcacf9d49bc58decc98a",
+  "powerpc64le-unknown-linux-gnu-0.9.26":
+    "1a7fbd268b7520e03747022f879113545a5bd71cad02e9cbabd591b268b5a36c",
+  "riscv64gc-unknown-linux-gnu-0.9.26":
+    "9f202ad04cc398dc77a6efe20ea91ec044ad66e1f7a60777e6efd20a357f479a",
+  "s390x-unknown-linux-gnu-0.9.26":
+    "f8e6b8f1264821add1ea21d592b4522300401f44ac4124fba9fea6874fd79797",
+  "x86_64-apple-darwin-0.9.26":
+    "171eb8c518313e157c5b4cec7b4f743bc6bab1bd23e09b646679a02d096a047f",
+  "x86_64-pc-windows-msvc-0.9.26":
+    "eb02fd95d8e0eed462b4a67ecdd320d865b38c560bffcda9a0b87ec944bdf036",
+  "x86_64-unknown-linux-gnu-0.9.26":
+    "30ccbf0a66dc8727a02b0e245c583ee970bdafecf3a443c1686e1b30ec4939e8",
+  "x86_64-unknown-linux-musl-0.9.26":
+    "708b752876aeeb753257e1d55470569789e465684c1d3bc1760db26360b6c28b",
+  "aarch64-apple-darwin-0.9.25":
+    "606b3c6949d971709f2526fa0d9f0fd23ccf60e09f117999b406b424af18a6a6",
+  "aarch64-pc-windows-msvc-0.9.25":
+    "6a4c2a753a94d9639725b435f5d1a65bfa25cd196d448ad60841f5fe81ef0052",
+  "aarch64-unknown-linux-gnu-0.9.25":
+    "a8f1d71a42c4470251a880348b2d28d530018693324175084fa1749d267c98c6",
+  "aarch64-unknown-linux-musl-0.9.25":
+    "11cddffc61826e3b7af02db37bc3ed8e9e6747dad328d45c8b02f89408afbf75",
+  "arm-unknown-linux-musleabihf-0.9.25":
+    "52f3a96605a7873ec44bb84c33ee08e717df61136fec121f715871cae5b779ec",
+  "armv7-unknown-linux-gnueabihf-0.9.25":
+    "7ae274742a5b2398bd75f9075536c7f0b3f99ebc8c6588c37e3bfcd9cc9d781d",
+  "armv7-unknown-linux-musleabihf-0.9.25":
+    "77220a539dfffe576cdc9b9e9ab5432c07dd1b63915c859c227883af7ba00538",
+  "i686-pc-windows-msvc-0.9.25":
+    "55dbf32074a76e029410620e7e3fbef9762799c7dfcf539b098ccc0a64cac9a3",
+  "i686-unknown-linux-gnu-0.9.25":
+    "b9dae29f4e37bc89e69836e59169a51d8cac4da118b7548a20b2269b19c94cad",
+  "i686-unknown-linux-musl-0.9.25":
+    "a84a159856a0227c273e86594d9cf8fbf84c56bd4eeeb9a665c946304c49dbec",
+  "powerpc64-unknown-linux-gnu-0.9.25":
+    "37bc519ebe5e4efb12fd155eb94512547a874f0e41251203b49d715f75eb5a20",
+  "powerpc64le-unknown-linux-gnu-0.9.25":
+    "a01a273b5cd64ece96d4589afbacaf5e99a0695f37ebe9a72fd6b2f7cf0a7071",
+  "riscv64gc-unknown-linux-gnu-0.9.25":
+    "9d9692f1bd5ff6d9db2c4bffc4ceeb8d8746ae03ddeca0b24a0f8fc9ea81b911",
+  "s390x-unknown-linux-gnu-0.9.25":
+    "92d5e4504ef83f421a841381678f871bf2a8821a69d3374dd638e2014d4762ab",
+  "x86_64-apple-darwin-0.9.25":
+    "4982dfff14b3548bc85d0fa0abec6ab8ae62836b218bf1223741ba1392ef93bf",
+  "x86_64-pc-windows-msvc-0.9.25":
+    "d63f8e59cf76bcce9cb8a3eac6c1a89adce0f89a29bacca978c9bf842f419277",
+  "x86_64-unknown-linux-gnu-0.9.25":
+    "fa1f4abfe101d43e820342210c3c6854028703770f81e95b119ed1e65ec81b35",
+  "x86_64-unknown-linux-musl-0.9.25":
+    "700776c376ce36ed5b731fcd699e141d897551f5111907987b63897e0c1ad797",
+  "aarch64-apple-darwin-0.9.24":
+    "89661d9a16682197086df54bb43d0b03e58e23d4d9360fc8c6c0166f2828fd71",
+  "aarch64-pc-windows-msvc-0.9.24":
+    "40ceb66af2667fc9b4d30a65ad8b8795d4effc39a44019b4218ad03f8f1d5a14",
+  "aarch64-unknown-linux-gnu-0.9.24":
+    "9b291a1a4f2fefc430e4fc49c00cb93eb448d41c5c79edf45211ceffedde3334",
+  "aarch64-unknown-linux-musl-0.9.24":
+    "b16359904ede857b90b68168f10b0f6bf500858df9bed4e7156dbc59fd3f0747",
+  "arm-unknown-linux-musleabihf-0.9.24":
+    "b343d7f49ea5c0982c9696cbc5c7f96d7053cf8f9c7383a58d6c0c44fbeb6422",
+  "armv7-unknown-linux-gnueabihf-0.9.24":
+    "8d05b55fe2108ecab3995c2b656679a72c543fd9dc72eeb3a525106a709cfdcb",
+  "armv7-unknown-linux-musleabihf-0.9.24":
+    "788d2bee1dfdb57a462f2a5c4e3d6e8c68ee9f9f1a938bdcdc00fa9e5edeaeec",
+  "i686-pc-windows-msvc-0.9.24":
+    "b49265a713cb3f874bcb373572095993d3098ab77cd2665483f53b24b788e5e9",
+  "i686-unknown-linux-gnu-0.9.24":
+    "940b8985c4d464c7cc69e40b17bf09d840b980028e1d82a3fb8dd007a737f29e",
+  "i686-unknown-linux-musl-0.9.24":
+    "4ffe6f377b7d68904d8d882af8adc85f2fa1bbccd26151785ff961adb67f2a99",
+  "powerpc64-unknown-linux-gnu-0.9.24":
+    "1fbaff65544a2c36bbd8992e2abe6c50179401745dc00b5e12bded89794056a4",
+  "powerpc64le-unknown-linux-gnu-0.9.24":
+    "57ea84430ccf49f97184d9ee21102b250214fc6e6af4a87eefaaf8bb7c9c2b9a",
+  "riscv64gc-unknown-linux-gnu-0.9.24":
+    "81a884380f0ee954afd968140aaa55df19f2bee30d74f3c0c94a11d2265bb388",
+  "s390x-unknown-linux-gnu-0.9.24":
+    "3da41f22f78f27a7764e303b07c68f5716f748128327c7d3d72f11c6b81b6c78",
+  "x86_64-apple-darwin-0.9.24":
+    "fda9b3203cce6ec3a37177440c33c4c1963c4957fff17e2820c60ab6ccd625da",
+  "x86_64-pc-windows-msvc-0.9.24":
+    "cf9d6fa12017199d19c6f9a8f7f55811c8c04d70681b8cb6d89ffb179f08cf1f",
+  "x86_64-unknown-linux-gnu-0.9.24":
+    "fb13ad85106da6b21dd16613afca910994446fe94a78ee0b5bed9c75cd066078",
+  "x86_64-unknown-linux-musl-0.9.24":
+    "cf307aa4271038daa334ca64e75aa40c0c085ce6fa0c0e6f21e41a2b62c7904d",
+  "aarch64-apple-darwin-0.9.23":
+    "3aae069424778d13ef45ebd2ec906c66ab10e459e7b33341a64cd371a3d70998",
+  "aarch64-pc-windows-msvc-0.9.23":
+    "dfdb23dbfa6c89847e4163f0b3b683de889df7d9bdf95a3909dfbc6430106304",
+  "aarch64-unknown-linux-gnu-0.9.23":
+    "d60b0b2aee79f9d83897615fed427bee1ea4ebcb2f15b48dd522319ecdb3de91",
+  "aarch64-unknown-linux-musl-0.9.23":
+    "ee987d943427ee24c1d3af79c7ad676950c9ad634e60a4d07e328d8a54fff92f",
+  "arm-unknown-linux-musleabihf-0.9.23":
+    "1950c235e76e007f75d30903dc5da6747a344c72a1608123feff720c134ecbfe",
+  "armv7-unknown-linux-gnueabihf-0.9.23":
+    "a7104ab491a0c2f0c58760bcb9a13cfb64c899e02a7b747c4d11da114b3f9114",
+  "armv7-unknown-linux-musleabihf-0.9.23":
+    "c5d494337a5ca86ad83d6a887634fda3f8392560799e4236a44d76f8e27621b6",
+  "i686-pc-windows-msvc-0.9.23":
+    "94292f02b7484616bb3cd7361411540a5a52e952d149eb6faeec610b6657015d",
+  "i686-unknown-linux-gnu-0.9.23":
+    "627627174d31e6fa270e91c7b2988558e4b18b86cc31de9222b6cf3b7354e9b7",
+  "i686-unknown-linux-musl-0.9.23":
+    "5f65a0eb1f9067a4f5149275faba3bcb3af94dd68fbce7cd9e93ba86b5bc59c3",
+  "powerpc64-unknown-linux-gnu-0.9.23":
+    "69e2925397d0e781e8525ad0fd22896a114ffa02f5055e7a360e4dda3796c24e",
+  "powerpc64le-unknown-linux-gnu-0.9.23":
+    "fb3ad2cb1a19f1bb4785580dc71837161147beab134fdc3eb4e8ccda577db1e0",
+  "riscv64gc-unknown-linux-gnu-0.9.23":
+    "0d1d9300e2df3155b0d0b071c292fb27f8213d91854decdfb27c293397dc8e0e",
+  "s390x-unknown-linux-gnu-0.9.23":
+    "7d0b411a365b0cd8fad2b336c259743e7381676654adfbdb4f887b4136820cb8",
+  "x86_64-apple-darwin-0.9.23":
+    "b5bbfbd5d8c7effa24b505365ae306116fdac58880bc9b024ec4c89435d57728",
+  "x86_64-pc-windows-msvc-0.9.23":
+    "bb6d2987906b27d3031640c4a909b6f7c134cd29674c41ef545c6e7d57dd6700",
+  "x86_64-unknown-linux-gnu-0.9.23":
+    "b7bd7d9b9c9c34327f1118f99fe8c298252787ea35f7b345b8bf639377f63217",
+  "x86_64-unknown-linux-musl-0.9.23":
+    "a824a0f5f7aa67b668f54756284d458a25dea332da6e558d303890d134cc06d1",
+  "aarch64-apple-darwin-0.9.22":
+    "4bfc6dacc9bcc9e433a9214a658495ca082b94fd607949b6745a955f34ccbc3c",
+  "aarch64-pc-windows-msvc-0.9.22":
+    "19b848523d5802279702f5df4ade6d45f17d111cf9e368883d4f6560f0426d49",
+  "aarch64-unknown-linux-gnu-0.9.22":
+    "2f8716c407d5da21b8a3e8609ed358147216aaab28b96b1d6d7f48e9bcc6254e",
+  "aarch64-unknown-linux-musl-0.9.22":
+    "a400eaede62557af86bed6c5252a101aa1efd596698bb10c9400334fcc2847ec",
+  "arm-unknown-linux-musleabihf-0.9.22":
+    "23e0770034e31aaf47b0c84156b2e5ec7638ca0edc76a4cccb8bdc94bfd16159",
+  "armv7-unknown-linux-gnueabihf-0.9.22":
+    "db3ac49b78b3ac57c0e6e9a0ea61237a235447338594ad8e398e8074448bd071",
+  "armv7-unknown-linux-musleabihf-0.9.22":
+    "c153ac78c571dbbd9bab54c954b93b496645efbd4d3a0689b03e04d0de17c30f",
+  "i686-pc-windows-msvc-0.9.22":
+    "f08889e9567feb1e802c9e588de60efef5a436630e4c211fbf4a2116928f69ab",
+  "i686-unknown-linux-gnu-0.9.22":
+    "841e534a28285dcadfea2ca0f848a9669df287990f93d64c6bf87a9794c98ec9",
+  "i686-unknown-linux-musl-0.9.22":
+    "b2c5322e188980afd4bc1afb19f4e8dee7000ad0e17ca754e97dab21c1d4d1f5",
+  "powerpc64-unknown-linux-gnu-0.9.22":
+    "309c4a48d7f65cdf47aa7e1c5e02502556e04f486d46e9591f5b4196c92730a3",
+  "powerpc64le-unknown-linux-gnu-0.9.22":
+    "1e829630f8317cf3e9818c3ad1f9927fdc9d087cd38abb05f9587c19872a8560",
+  "riscv64gc-unknown-linux-gnu-0.9.22":
+    "d3036e36b330ad6caab68fa31c12c21f80c9b8cc7822416343a5100f09d6b640",
+  "s390x-unknown-linux-gnu-0.9.22":
+    "aff367a5c6ffb87b9cebbda4372464ca6aff69a53c81a94f1d78541be9677b2d",
+  "x86_64-apple-darwin-0.9.22":
+    "c0057ad78b475f343739b1bbe223361c1054524c9edf310ee1dc85a050207f86",
+  "x86_64-pc-windows-msvc-0.9.22":
+    "93a0a244f26eec208d8ea8077e3de743d9687ad76c190342722f1f57fa629457",
+  "x86_64-unknown-linux-gnu-0.9.22":
+    "e170aed70ac0225feee612e855d3a57ae73c61ffb22c7e52c3fd33b87c286508",
+  "x86_64-unknown-linux-musl-0.9.22":
+    "84d087a8e77a223d80578919894f3103f46ca7c263250c3e0478ce7c38850349",
+  "aarch64-apple-darwin-0.9.21":
+    "473977236ef8ac5937c80de08a3599cb6ed6021d0e015e10f88076767877a153",
+  "aarch64-pc-windows-msvc-0.9.21":
+    "54f66a44108b1b68583c9da0a515195d011189874ec9547710c032801726e042",
+  "aarch64-unknown-linux-gnu-0.9.21":
+    "416984484783a357170c43f98e7d2d203f1fb595d6b3b95131513c53e50986ef",
+  "aarch64-unknown-linux-musl-0.9.21":
+    "03a49fb609888032dbc3be9fd114b50fc9bce8b73b3df319746ae08d1fbdea83",
+  "arm-unknown-linux-musleabihf-0.9.21":
+    "5d84273d9e79aa1262e11d50b4b4e61c7b33bbbf47c7f7e271cb07f89ac479c1",
+  "armv7-unknown-linux-gnueabihf-0.9.21":
+    "74b2a73b3569cbba8c73470eb45dfba393401c834dd432fc8bd2039b40b1dde6",
+  "armv7-unknown-linux-musleabihf-0.9.21":
+    "fa3806603be42aad687bb97ff5939a32f5e1c21d565155299410ad445669ce11",
+  "i686-pc-windows-msvc-0.9.21":
+    "941e2b656cf9c94eac4b751933b24e5820247d938958c3d62d9d95d0e2409956",
+  "i686-unknown-linux-gnu-0.9.21":
+    "73fbd705cb4b5c071318afee896ba9984e3a14fcf7842435a93c43dc9ca0a12c",
+  "i686-unknown-linux-musl-0.9.21":
+    "c38f823354fff387758f6288ad184b104f47520b3cee7d53e92f3666b3466f55",
+  "powerpc64-unknown-linux-gnu-0.9.21":
+    "2cf68ea2ff75c4a627101bfe22064d6646a03cd7ddb939c933f3d8127b8d5982",
+  "powerpc64le-unknown-linux-gnu-0.9.21":
+    "3ede0329f67f5db37914b5dfd6014c414d27e1bf0153dab8d5cc2e066da034dc",
+  "riscv64gc-unknown-linux-gnu-0.9.21":
+    "3b7b070afd9c7be5a6364f081081cf9fec2160b53eba46cad27304b8b158e4ab",
+  "s390x-unknown-linux-gnu-0.9.21":
+    "34bd75d67a5819c9f796a78b1ec9ebd48021d87d2391b4cf282249c4d026f145",
+  "x86_64-apple-darwin-0.9.21":
+    "26390da48bd55e21ab62451a80ad240ef6df10d4c48ec199cbb34c18b4288983",
+  "x86_64-pc-windows-msvc-0.9.21":
+    "d27952e73183ef8f6ee8c2a50cf8b3f2e08e01b6a9279a00a85cb261ea8d8337",
+  "x86_64-unknown-linux-gnu-0.9.21":
+    "0a1ab27383c28ef1c041f85cbbc609d8e3752dfb4b238d2ad97b208a52232baf",
+  "x86_64-unknown-linux-musl-0.9.21":
+    "7abc29b3a06a99fb23564400fe884f5798a1786dc2ca05b6e0f70c53de748ab2",
+  "aarch64-apple-darwin-0.9.20":
+    "c3f4b03a5d526119d41fa8b8f255aa8053c49d787778df654895e3d174b1519a",
+  "aarch64-pc-windows-msvc-0.9.20":
+    "ddba8b1ca82df9b49745c93855c670490d776027269cf7de404d951919c96ea7",
+  "aarch64-unknown-linux-gnu-0.9.20":
+    "0451ecac1d0ed43d5870927df84c3d1dc93d72cf1933310acfadce5ad457c587",
+  "aarch64-unknown-linux-musl-0.9.20":
+    "d1b645d63c70da3f6f2368ea4dbc9dd5534b54be74ae32dee8941531c6874b6d",
+  "arm-unknown-linux-musleabihf-0.9.20":
+    "ddbaab7f1413f181bafc96c8b18af8e69372373798d2294d03d3935fd829c939",
+  "armv7-unknown-linux-gnueabihf-0.9.20":
+    "e1b2f5e4298878e6ac1137f744ba38b59ce68abd6a43878e66a1cac4dd7efd0e",
+  "armv7-unknown-linux-musleabihf-0.9.20":
+    "afc4a709ad83773bafa4ba83afa44bb101e44b817c5ad620cb9c54b62fe52e4e",
+  "i686-pc-windows-msvc-0.9.20":
+    "d7e50a3bc433bbb08e7890206bec0623627e6a911a6c10322c98721bde1a9cb0",
+  "i686-unknown-linux-gnu-0.9.20":
+    "aec778b1c44607416102139b6bb6a7f53a313fce8ad1033049b10ac90ed3c597",
+  "i686-unknown-linux-musl-0.9.20":
+    "92dd40f272b65f8301f0f9559fe55ac99b340caba93fe1952172e3485494cbba",
+  "powerpc64-unknown-linux-gnu-0.9.20":
+    "c2abda00a2b53cde9b6c8380ef9773749d341039771d7447df5647d935eb54c6",
+  "powerpc64le-unknown-linux-gnu-0.9.20":
+    "f40409d551a30081ada78cca7a1a260c02a7d16c912d73988d8e212324dea758",
+  "riscv64gc-unknown-linux-gnu-0.9.20":
+    "6dda223f877ff3eb3eba2fcf14abfd36280e5db1c0480addf5da5273ece087d6",
+  "s390x-unknown-linux-gnu-0.9.20":
+    "8ca14c1a9fe47ad2293a321f061c7278b32d7bc200d2692662790ab6ccd395c1",
+  "x86_64-apple-darwin-0.9.20":
+    "0059dc2986e7032c12b7039e1a66e570ab5c3a41598263c76e5a9c4e7da9f971",
+  "x86_64-pc-windows-msvc-0.9.20":
+    "be51ed9fcba5be4ac9c41a46aaf8af5cef86624fe27e2c645771b174069e049d",
+  "x86_64-unknown-linux-gnu-0.9.20":
+    "01ac5d872ab4cf6b11965c9df317f699882405f0319872fe3dbbb3adb045600b",
+  "x86_64-unknown-linux-musl-0.9.20":
+    "0de686dcc02e0b045980779e7330f2deb98e6cd9ece40d3341bd45c6733e682d",
+  "aarch64-apple-darwin-0.9.18":
+    "dc3bee4abbb3bac267a3985a23ea7617d19d41ff381dbaf560ba415ad65af68f",
+  "aarch64-pc-windows-msvc-0.9.18":
+    "fadb43ba13091f44e1786fc3967e65c7786d86192aa205d718307c649927cfc2",
+  "aarch64-unknown-linux-gnu-0.9.18":
+    "f8e23ec786b18660ade6b033b6191b7e9c283c872eeb8c4531d56a873decf160",
+  "aarch64-unknown-linux-musl-0.9.18":
+    "b710ceb9889276cbd7ce04e2ca06b5bd3e288da465bd38f7dd17955c4e703a65",
+  "arm-unknown-linux-musleabihf-0.9.18":
+    "2219049d28baaa0764e0315996e26c70ef548a0ba59add7f42358575ab04b410",
+  "armv7-unknown-linux-gnueabihf-0.9.18":
+    "dddf55144884f5d83b9f5795f0b16d023abedf615505962a6ebcaaef2cb62815",
+  "armv7-unknown-linux-musleabihf-0.9.18":
+    "265d49a8976a5956d3cab524e85e86df5397ab0daf6bd77f1494b0b9e1c00b9a",
+  "i686-pc-windows-msvc-0.9.18":
+    "52bd6fedef821a2412de73c31fdcf41c31b0a5c5886a416c3ba1a3d282ff02b8",
+  "i686-unknown-linux-gnu-0.9.18":
+    "6cc0437382adddd0439c874c41625539523725d551da9f9aecf7c0a3e86a1c77",
+  "i686-unknown-linux-musl-0.9.18":
+    "a727b054337ce453e98b80d6eccaa913cf542c155f3252503aff3e613735c640",
+  "powerpc64-unknown-linux-gnu-0.9.18":
+    "522154f752a90513cedcc621071893e46fb05d025ce8f0d4523514e8a87417d7",
+  "powerpc64le-unknown-linux-gnu-0.9.18":
+    "0660534d548800b17d2fc1dcdaf0f284e48ca3e34fff2b8b5c1797610e18fc0e",
+  "riscv64gc-unknown-linux-gnu-0.9.18":
+    "db6f5cbbc56a7212e61445a8cd1fcf880dc2906b4cac8f945320f0ab8eb9bf75",
+  "s390x-unknown-linux-gnu-0.9.18":
+    "bfa789548a345189b70d9069d9d7ef8f9c2236f0d10e2ae47a13549ffded5b84",
+  "x86_64-apple-darwin-0.9.18":
+    "f86836c637333c65bbc7902acc9c49888eef9fbd15dccbc1946b10e30b041073",
+  "x86_64-pc-windows-msvc-0.9.18":
+    "28cbe5d30907a774bfe27a517a39b494ec6f7d3816bda8bbf6f9645490449182",
+  "x86_64-unknown-linux-gnu-0.9.18":
+    "c2def3db178ade63933fa15ffc96e882c196ce53e06173dcee05b36c5f6f68f5",
+  "x86_64-unknown-linux-musl-0.9.18":
+    "a55ae2d0d53c8f6541bb4d6afc95857ff33a97de8f1d23e9d09acdcb865c4a00",
   "aarch64-apple-darwin-0.9.17":
     "a1e1464aa1d04d5e5fa700aa2f2e10397d1114e835dbd56be25ba65c9a31bd99",
   "aarch64-pc-windows-msvc-0.9.17":

src/download/checksum/update-known-checksums.ts

@@ -1,9 +1,13 @@
 import { promises as fs } from "node:fs";
-import * as tc from "@actions/tool-cache";
+
-import { KNOWN_CHECKSUMS } from "./known-checksums";
+export interface ChecksumEntry {
+  key: string;
+  checksum: string;
+}
+
 export async function updateChecksums(
   filePath: string,
-  downloadUrls: string[],
+  checksumEntries: ChecksumEntry[],
 ): Promise<void> {
   await fs.rm(filePath);
   await fs.appendFile(
@@ -11,49 +15,12 @@ export async function updateChecksums(
     "// AUTOGENERATED_DO_NOT_EDIT\nexport const KNOWN_CHECKSUMS: { [key: string]: string } = {\n",
   );
   let firstLine = true;
-  for (const downloadUrl of downloadUrls) {
+  for (const entry of checksumEntries) {
-    const key = getKey(downloadUrl);
-    if (key === undefined) {
-      continue;
-    }
-    const checksum = await getOrDownloadChecksum(key, downloadUrl);
     if (!firstLine) {
       await fs.appendFile(filePath, ",\n");
     }
-    await fs.appendFile(filePath, `  "${key}":\n    "${checksum}"`);
+    await fs.appendFile(filePath, `  "${entry.key}":\n    "${entry.checksum}"`);
     firstLine = false;
   }
   await fs.appendFile(filePath, ",\n};\n");
 }
-
-function getKey(downloadUrl: string): string | undefined {
-  // https://github.com/astral-sh/uv/releases/download/0.3.2/uv-aarch64-apple-darwin.tar.gz.sha256
-  const parts = downloadUrl.split("/");
-  const fileName = parts[parts.length - 1];
-  if (fileName.startsWith("source")) {
-    return undefined;
-  }
-  const name = fileName.split(".")[0].split("uv-")[1];
-  const version = parts[parts.length - 2];
-  return `${name}-${version}`;
-}
-
-async function getOrDownloadChecksum(
-  key: string,
-  downloadUrl: string,
-): Promise<string> {
-  let checksum = "";
-  if (key in KNOWN_CHECKSUMS) {
-    checksum = KNOWN_CHECKSUMS[key];
-  } else {
-    const content = await downloadAssetContent(downloadUrl);
-    checksum = content.split(" ")[0].trim();
-  }
-  return checksum;
-}
-
-async function downloadAssetContent(downloadUrl: string): Promise<string> {
-  const downloadPath = await tc.downloadTool(downloadUrl);
-  const content = await fs.readFile(downloadPath, "utf8");
-  return content;
-}

src/download/download-version.ts

@@ -2,20 +2,20 @@ 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 type { Endpoints } from "@octokit/types";
 import * as pep440 from "@renovatebot/pep440";
 import * as semver from "semver";
 import { OWNER, REPO, TOOL_CACHE_NAME } from "../utils/constants";
-import { Octokit } from "../utils/octokit";
 import type { Architecture, Platform } from "../utils/platforms";
 import { validateChecksum } from "./checksum/checksum";
 import {
-  getDownloadUrl,
   getLatestKnownVersion as getLatestVersionInManifest,
+  getDownloadUrl as getManifestDownloadUrl,
 } from "./version-manifest";
-
+import {
-type Release =
+  getAllVersions,
-  Endpoints["GET /repos/{owner}/{repo}/releases"]["response"]["data"][number];
+  getArtifact,
+  getLatestVersion as getLatestVersionFromNdjson,
+} from "./versions-client";
 
 export function tryGetFromToolCache(
   arch: Architecture,
@@ -32,7 +32,7 @@ export function tryGetFromToolCache(
   return { installedPath, version: resolvedVersion };
 }
 
-export async function downloadVersionFromGithub(
+export async function downloadVersionFromNdjson(
   platform: Platform,
   arch: Architecture,
   version: string,
@@ -41,7 +41,14 @@ export async function downloadVersionFromGithub(
 ): Promise<{ version: string; cachedToolDir: string }> {
   const artifact = `uv-${arch}-${platform}`;
   const extension = getExtension(platform);
-  const downloadUrl = `https://github.com/${OWNER}/${REPO}/releases/download/${version}/${artifact}${extension}`;
+
+  // Get artifact info from NDJSON (includes URL and checksum)
+  const artifactInfo = await getArtifact(version, arch, platform);
+
+  const downloadUrl =
+    artifactInfo?.url ??
+    `https://github.com/${OWNER}/${REPO}/releases/download/${version}/${artifact}${extension}`;
+
   return await downloadVersion(
     downloadUrl,
     artifact,
@@ -50,35 +57,30 @@ export async function downloadVersionFromGithub(
     version,
     checkSum,
     githubToken,
+    artifactInfo?.sha256,
   );
 }
 
 export async function downloadVersionFromManifest(
-  manifestUrl: string | undefined,
+  manifestUrl: string,
   platform: Platform,
   arch: Architecture,
   version: string,
   checkSum: string | undefined,
   githubToken: string,
 ): Promise<{ version: string; cachedToolDir: string }> {
-  const downloadUrl = await getDownloadUrl(
+  const downloadUrl = await getManifestDownloadUrl(
     manifestUrl,
     version,
     arch,
     platform,
   );
   if (!downloadUrl) {
-    core.info(
+    throw new Error(
-      `manifest-file does not contain version ${version}, arch ${arch}, platform ${platform}. Falling back to GitHub releases.`,
+      `manifest-file does not contain version ${version}, arch ${arch}, platform ${platform}.`,
-    );
-    return await downloadVersionFromGithub(
-      platform,
-      arch,
-      version,
-      checkSum,
-      githubToken,
     );
   }
+
   return await downloadVersion(
     downloadUrl,
     `uv-${arch}-${platform}`,
@@ -87,6 +89,7 @@ export async function downloadVersionFromManifest(
     version,
     checkSum,
     githubToken,
+    undefined, // No NDJSON checksum for manifest downloads
   );
 }
 
@@ -98,6 +101,7 @@ async function downloadVersion(
   version: string,
   checkSum: string | undefined,
   githubToken: string,
+  ndjsonChecksum?: string,
 ): Promise<{ version: string; cachedToolDir: string }> {
   core.info(`Downloading uv from "${downloadUrl}" ...`);
   const downloadPath = await tc.downloadTool(
@@ -105,7 +109,14 @@ async function downloadVersion(
     undefined,
     githubToken,
   );
-  await validateChecksum(checkSum, downloadPath, arch, platform, version);
+  await validateChecksum(
+    checkSum,
+    downloadPath,
+    arch,
+    platform,
+    version,
+    ndjsonChecksum,
+  );
 
   let uvDir: string;
   if (platform === "pc-windows-msvc") {
@@ -143,7 +154,6 @@ function getExtension(platform: Platform): string {
 export async function resolveVersion(
   versionInput: string,
   manifestFile: string | undefined,
-  githubToken: string,
   resolutionStrategy: "highest" | "lowest" = "highest",
 ): Promise<string> {
   core.debug(`Resolving version: ${versionInput}`);
@@ -163,7 +173,7 @@ export async function resolveVersion(
   } else {
     version =
       versionInput === "latest" || resolveVersionSpecifierToLatest
-        ? await getLatestVersion(githubToken)
+        ? await getLatestVersionFromNdjson()
         : versionInput;
   }
   if (tc.isExplicitVersion(version)) {
@@ -175,7 +185,7 @@ export async function resolveVersion(
     }
     return version;
   }
-  const availableVersions = await getAvailableVersions(githubToken);
+  const availableVersions = await getAvailableVersions();
   core.debug(`Available versions: ${availableVersions}`);
   const resolvedVersion =
     resolutionStrategy === "lowest"
@@ -187,79 +197,9 @@ export async function resolveVersion(
   return resolvedVersion;
 }
 
-async function getAvailableVersions(githubToken: string): Promise<string[]> {
+async function getAvailableVersions(): Promise<string[]> {
-  core.info("Getting available versions from GitHub API...");
+  core.info("Getting available versions from NDJSON...");
-  try {
+  return await getAllVersions();
-    const octokit = new Octokit({
-      auth: githubToken,
-    });
-    return await getReleaseTagNames(octokit);
-  } catch (err) {
-    if ((err as Error).message.includes("Bad credentials")) {
-      core.info(
-        "No (valid) GitHub token provided. Falling back to anonymous. Requests might be rate limited.",
-      );
-      const octokit = new Octokit();
-      return await getReleaseTagNames(octokit);
-    }
-    throw err;
-  }
-}
-
-async function getReleaseTagNames(octokit: Octokit): Promise<string[]> {
-  const response: Release[] = await octokit.paginate(
-    octokit.rest.repos.listReleases,
-    {
-      owner: OWNER,
-      repo: REPO,
-    },
-  );
-  const releaseTagNames = response.map((release) => release.tag_name);
-  if (releaseTagNames.length === 0) {
-    throw Error(
-      "Github API request failed while getting releases. Check the GitHub status page for outages. Try again later.",
-    );
-  }
-  return releaseTagNames;
-}
-
-async function getLatestVersion(githubToken: string) {
-  core.info("Getting latest version from GitHub API...");
-  const octokit = new Octokit({
-    auth: githubToken,
-  });
-
-  let latestRelease: { tag_name: string } | undefined;
-  try {
-    latestRelease = await getLatestRelease(octokit);
-  } catch (err) {
-    if ((err as Error).message.includes("Bad credentials")) {
-      core.info(
-        "No (valid) GitHub token provided. Falling back to anonymous. Requests might be rate limited.",
-      );
-      const octokit = new Octokit();
-      latestRelease = await getLatestRelease(octokit);
-    } else {
-      core.error(
-        "Github API request failed while getting latest release. Check the GitHub status page for outages. Try again later.",
-      );
-      throw err;
-    }
-  }
-
-  if (!latestRelease) {
-    throw new Error("Could not determine latest release.");
-  }
-  core.debug(`Latest version: ${latestRelease.tag_name}`);
-  return latestRelease.tag_name;
-}
-
-async function getLatestRelease(octokit: Octokit) {
-  const { data: latestRelease } = await octokit.rest.repos.getLatestRelease({
-    owner: OWNER,
-    repo: REPO,
-  });
-  return latestRelease;
 }
 
 function maxSatisfying(

src/download/versions-client.ts

@@ -0,0 +1,113 @@
+import * as core from "@actions/core";
+import { VERSIONS_NDJSON_URL } from "../utils/constants";
+import { fetch } from "../utils/fetch";
+
+export interface NdjsonArtifact {
+  platform: string;
+  variant: string;
+  url: string;
+  archive_format: string;
+  sha256: string;
+}
+
+export interface NdjsonVersion {
+  version: string;
+  artifacts: NdjsonArtifact[];
+}
+
+let cachedVersionData: NdjsonVersion[] | null = null;
+
+export async function fetchVersionData(): Promise<NdjsonVersion[]> {
+  if (cachedVersionData !== null) {
+    core.debug("Using cached NDJSON version data");
+    return cachedVersionData;
+  }
+
+  core.info(`Fetching version data from ${VERSIONS_NDJSON_URL}...`);
+  const response = await fetch(VERSIONS_NDJSON_URL, {});
+  if (!response.ok) {
+    throw new Error(
+      `Failed to fetch version data: ${response.status} ${response.statusText}`,
+    );
+  }
+
+  const body = await response.text();
+  const versions: NdjsonVersion[] = [];
+
+  for (const line of body.split("\n")) {
+    const trimmed = line.trim();
+    if (trimmed === "") {
+      continue;
+    }
+    try {
+      const version = JSON.parse(trimmed) as NdjsonVersion;
+      versions.push(version);
+    } catch {
+      core.debug(`Failed to parse NDJSON line: ${trimmed}`);
+    }
+  }
+
+  if (versions.length === 0) {
+    throw new Error("No version data found in NDJSON file");
+  }
+
+  cachedVersionData = versions;
+  return versions;
+}
+
+export async function getLatestVersion(): Promise<string> {
+  const versions = await fetchVersionData();
+  // The NDJSON file lists versions in order, newest first
+  const latestVersion = versions[0]?.version;
+  if (!latestVersion) {
+    throw new Error("No versions found in NDJSON data");
+  }
+  core.debug(`Latest version from NDJSON: ${latestVersion}`);
+  return latestVersion;
+}
+
+export async function getAllVersions(): Promise<string[]> {
+  const versions = await fetchVersionData();
+  return versions.map((v) => v.version);
+}
+
+export interface ArtifactResult {
+  url: string;
+  sha256: string;
+}
+
+export async function getArtifact(
+  version: string,
+  arch: string,
+  platform: string,
+): Promise<ArtifactResult | undefined> {
+  const versions = await fetchVersionData();
+  const versionData = versions.find((v) => v.version === version);
+  if (!versionData) {
+    core.debug(`Version ${version} not found in NDJSON data`);
+    return undefined;
+  }
+
+  // The NDJSON artifact platform format is like "x86_64-apple-darwin"
+  // We need to match against arch-platform
+  const targetPlatform = `${arch}-${platform}`;
+  const artifact = versionData.artifacts.find(
+    (a) => a.platform === targetPlatform,
+  );
+
+  if (!artifact) {
+    core.debug(
+      `Artifact for ${targetPlatform} not found in version ${version}. Available platforms: ${versionData.artifacts.map((a) => a.platform).join(", ")}`,
+    );
+    return undefined;
+  }
+
+  return {
+    sha256: artifact.sha256,
+    url: artifact.url,
+  };
+}
+
+export function clearCache(): void {
+  cachedVersionData = null;
+}

src/save-cache.ts

@@ -6,6 +6,7 @@ import * as pep440 from "@renovatebot/pep440";
 import {
   STATE_CACHE_KEY,
   STATE_CACHE_MATCHED_KEY,
+  STATE_PYTHON_CACHE_MATCHED_KEY,
 } from "./cache/restore-cache";
 import { STATE_UV_PATH, STATE_UV_VERSION } from "./utils/constants";
 import {
@@ -52,64 +53,31 @@ async function saveCache(): Promise<void> {
   }
   if (matchedKey === cacheKey) {
     core.info(`Cache hit occurred on key ${cacheKey}, not saving cache.`);
-    return;
+  } else {
-  }
-
     if (shouldPruneCache) {
       await pruneCache();
     }
 
-  if (cacheLocalPath === undefined) {
+    const actualCachePath = getUvCachePath();
-    throw new Error(
+    await saveCacheToKey(
-      "cache-local-path is not set. Cannot save cache without a valid cache path.",
+      cacheKey,
-    );
+      actualCachePath,
-  }
+      STATE_CACHE_MATCHED_KEY,
-  let actualCachePath = cacheLocalPath.path;
+      "uv cache",
-  if (
-    process.env.UV_CACHE_DIR &&
-    process.env.UV_CACHE_DIR !== cacheLocalPath.path
-  ) {
-    core.warning(
-      `The environment variable UV_CACHE_DIR has been changed to "${process.env.UV_CACHE_DIR}", by an action or step running after astral-sh/setup-uv. This can lead to unexpected behavior. If you expected this to happen set the cache-local-path input to "${process.env.UV_CACHE_DIR}" instead of "${cacheLocalPath.path}".`,
-    );
-    actualCachePath = process.env.UV_CACHE_DIR;
-  }
-
-  core.info(`Saving cache path: ${actualCachePath}`);
-  if (!fs.existsSync(actualCachePath) && !ignoreNothingToCache) {
-    throw new Error(
       `Cache path ${actualCachePath} does not exist on disk. This likely indicates that there are no dependencies to cache. Consider disabling the cache input if it is not needed.`,
     );
   }
 
-  const cachePaths = [actualCachePath];
   if (cachePython) {
-    core.info(`Including Python cache path: ${pythonDir}`);
+    const pythonCacheKey = `${cacheKey}-python`;
-    if (!fs.existsSync(pythonDir) && !ignoreNothingToCache) {
+    await saveCacheToKey(
-      throw new Error(
+      pythonCacheKey,
-        `Python cache path ${pythonDir} does not exist on disk. This likely indicates that there are no dependencies to cache. Consider disabling the cache input if it is not needed.`,
+      pythonDir,
+      STATE_PYTHON_CACHE_MATCHED_KEY,
+      "Python cache",
+      `Python cache path ${pythonDir} does not exist on disk. This likely indicates that there are no Python installations to cache. Consider disabling the cache input if it is not needed.`,
     );
   }
-    cachePaths.push(pythonDir);
-  }
-
-  core.info(`Final cache paths: ${cachePaths.join(", ")}`);
-  try {
-    await cache.saveCache(cachePaths, cacheKey);
-    core.info(`cache saved with the key: ${cacheKey}`);
-  } catch (e) {
-    if (
-      e instanceof Error &&
-      e.message ===
-        "Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved."
-    ) {
-      core.info(
-        "No cacheable paths were found. Ignoring because ignore-nothing-to-save is enabled.",
-      );
-    } else {
-      throw e;
-    }
-  }
 }
 
 async function pruneCache(): Promise<void> {
@@ -128,4 +96,61 @@ async function pruneCache(): Promise<void> {
   await exec.exec(uvPath, execArgs, options);
 }
 
+function getUvCachePath(): string {
+  if (cacheLocalPath === undefined) {
+    throw new Error(
+      "cache-local-path is not set. Cannot save cache without a valid cache path.",
+    );
+  }
+  if (
+    process.env.UV_CACHE_DIR &&
+    process.env.UV_CACHE_DIR !== cacheLocalPath.path
+  ) {
+    core.warning(
+      `The environment variable UV_CACHE_DIR has been changed to "${process.env.UV_CACHE_DIR}", by an action or step running after astral-sh/setup-uv. This can lead to unexpected behavior. If you expected this to happen set the cache-local-path input to "${process.env.UV_CACHE_DIR}" instead of "${cacheLocalPath.path}".`,
+    );
+    return process.env.UV_CACHE_DIR;
+  }
+  return cacheLocalPath.path;
+}
+
+async function saveCacheToKey(
+  cacheKey: string,
+  cachePath: string,
+  stateKey: string,
+  cacheName: string,
+  pathNotExistErrorMessage: string,
+): Promise<void> {
+  const matchedKey = core.getState(stateKey);
+
+  if (matchedKey === cacheKey) {
+    core.info(
+      `${cacheName} hit occurred on key ${cacheKey}, not saving cache.`,
+    );
+    return;
+  }
+
+  core.info(`Including ${cacheName} path: ${cachePath}`);
+  if (!fs.existsSync(cachePath) && !ignoreNothingToCache) {
+    throw new Error(pathNotExistErrorMessage);
+  }
+
+  try {
+    await cache.saveCache([cachePath], cacheKey);
+    core.info(`${cacheName} saved with key: ${cacheKey}`);
+  } catch (e) {
+    if (
+      e instanceof Error &&
+      e.message ===
+        "Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved."
+    ) {
+      core.info(
+        `No cacheable ${cacheName} paths were found. Ignoring because ignore-nothing-to-save is enabled.`,
+      );
+    } else {
+      throw e;
+    }
+  }
+}
+
 run();

src/setup-uv.ts

@@ -5,6 +5,7 @@ import * as exec from "@actions/exec";
 import { restoreCache } from "./cache/restore-cache";
 import {
   downloadVersionFromManifest,
+  downloadVersionFromNdjson,
   resolveVersion,
   tryGetFromToolCache,
 } from "./download/download-version";
@@ -36,6 +37,37 @@ import {
 } from "./utils/platforms";
 import { getUvVersionFromFile } from "./version/resolve";
 
+async function getPythonVersion(): Promise<string> {
+  if (pythonVersion !== "") {
+    return pythonVersion;
+  }
+
+  let output = "";
+  const options: exec.ExecOptions = {
+    listeners: {
+      stdout: (data: Buffer) => {
+        output += data.toString();
+      },
+    },
+    silent: !core.isDebug(),
+  };
+
+  try {
+    const execArgs = ["python", "find", "--directory", workingDirectory];
+    await exec.exec("uv", execArgs, options);
+    const pythonPath = output.trim();
+
+    output = "";
+    await exec.exec(pythonPath, ["--version"], options);
+    // output is like "Python 3.8.10"
+    return output.split(" ")[1].trim();
+  } catch (error) {
+    const err = error as Error;
+    core.debug(`Failed to get python version from uv. Error: ${err.message}`);
+    return "unknown";
+  }
+}
+
 async function run(): Promise<void> {
   detectEmptyWorkdir();
   const platform = await getPlatform();
@@ -63,8 +95,11 @@ async function run(): Promise<void> {
     core.saveState(STATE_UV_VERSION, setupResult.version);
     core.info(`Successfully installed uv version ${setupResult.version}`);
 
+    const pythonVersion = await getPythonVersion();
+    core.setOutput("python-version", pythonVersion);
+
     if (enableCache) {
-      await restoreCache();
+      await restoreCache(pythonVersion);
     }
     // https://github.com/nodejs/node/issues/56645#issuecomment-3077594952
     await new Promise((resolve) => setTimeout(resolve, 50));
@@ -104,13 +139,22 @@ async function setupUv(
     };
   }
 
-  const downloadVersionResult = await downloadVersionFromManifest(
+  // Use the same source for download as we used for version resolution
+  const downloadVersionResult = manifestFile
+    ? await downloadVersionFromManifest(
         manifestFile,
         platform,
         arch,
         resolvedVersion,
         checkSum,
         githubToken,
+      )
+    : await downloadVersionFromNdjson(
+        platform,
+        arch,
+        resolvedVersion,
+        checkSum,
+        githubToken,
       );
 
   return {
@@ -123,12 +167,7 @@ async function determineVersion(
   manifestFile: string | undefined,
 ): Promise<string> {
   if (versionInput !== "") {
-    return await resolveVersion(
+    return await resolveVersion(versionInput, manifestFile, resolutionStrategy);
-      versionInput,
-      manifestFile,
-      githubToken,
-      resolutionStrategy,
-    );
   }
   if (versionFileInput !== "") {
     const versionFromFile = getUvVersionFromFile(versionFileInput);
@@ -140,7 +179,6 @@ async function determineVersion(
     return await resolveVersion(
       versionFromFile,
       manifestFile,
-      githubToken,
       resolutionStrategy,
     );
   }
@@ -158,7 +196,6 @@ async function determineVersion(
   return await resolveVersion(
     versionFromUvToml || versionFromPyproject || "latest",
     manifestFile,
-    githubToken,
     resolutionStrategy,
   );
 }

src/update-known-versions.ts

@@ -1,63 +1,116 @@
+import { promises as fs } from "node:fs";
 import * as core from "@actions/core";
-import type { Endpoints } from "@octokit/types";
 import * as semver from "semver";
 import { updateChecksums } from "./download/checksum/update-known-checksums";
+import { getLatestKnownVersion } from "./download/version-manifest";
 import {
-  getLatestKnownVersion,
+  fetchVersionData,
-  updateVersionManifest,
+  getLatestVersion,
-} from "./download/version-manifest";
+  type NdjsonVersion,
-import { OWNER, REPO } from "./utils/constants";
+} from "./download/versions-client";
-import { Octokit } from "./utils/octokit";
 
-type Release =
+interface ChecksumEntry {
-  Endpoints["GET /repos/{owner}/{repo}/releases"]["response"]["data"][number];
+  key: string;
+  checksum: string;
+}
+
+interface ArtifactEntry {
+  version: string;
+  artifactName: string;
+  arch: string;
+  platform: string;
+  downloadUrl: string;
+}
+
+function extractChecksumsFromNdjson(
+  versions: NdjsonVersion[],
+): ChecksumEntry[] {
+  const checksums: ChecksumEntry[] = [];
+
+  for (const version of versions) {
+    for (const artifact of version.artifacts) {
+      // The platform field contains the target triple like "x86_64-apple-darwin"
+      const key = `${artifact.platform}-${version.version}`;
+      checksums.push({
+        checksum: artifact.sha256,
+        key,
+      });
+    }
+  }
+
+  return checksums;
+}
+
+function extractArtifactsFromNdjson(
+  versions: NdjsonVersion[],
+): ArtifactEntry[] {
+  const artifacts: ArtifactEntry[] = [];
+
+  for (const version of versions) {
+    for (const artifact of version.artifacts) {
+      // The platform field contains the target triple like "x86_64-apple-darwin"
+      // Split into arch and platform (e.g., "x86_64-apple-darwin" -> ["x86_64", "apple-darwin"])
+      const parts = artifact.platform.split("-");
+      const arch = parts[0];
+      const platform = parts.slice(1).join("-");
+
+      // Construct artifact name from platform and archive format
+      const artifactName = `uv-${artifact.platform}.${artifact.archive_format}`;
+
+      artifacts.push({
+        arch,
+        artifactName,
+        downloadUrl: artifact.url,
+        platform,
+        version: version.version,
+      });
+    }
+  }
+
+  return artifacts;
+}
 
 async function run(): Promise<void> {
   const checksumFilePath = process.argv.slice(2)[0];
   const versionsManifestFile = process.argv.slice(2)[1];
-  const githubToken = process.argv.slice(2)[2];
-
-  const octokit = new Octokit({
-    auth: githubToken,
-  });
-
-  const { data: latestRelease } = await octokit.rest.repos.getLatestRelease({
-    owner: OWNER,
-    repo: REPO,
-  });
 
+  const latestVersion = await getLatestVersion();
   const latestKnownVersion = await getLatestKnownVersion(undefined);
 
-  if (semver.lte(latestRelease.tag_name, latestKnownVersion)) {
+  if (semver.lte(latestVersion, latestKnownVersion)) {
     core.info(
-      `Latest release (${latestRelease.tag_name}) is not newer than the latest known version (${latestKnownVersion}). Skipping update.`,
+      `Latest release (${latestVersion}) is not newer than the latest known version (${latestKnownVersion}). Skipping update.`,
     );
     return;
   }
 
-  const releases: Release[] = await octokit.paginate(
+  const versions = await fetchVersionData();
-    octokit.rest.repos.listReleases,
-    {
-      owner: OWNER,
-      repo: REPO,
-    },
-  );
-  const checksumDownloadUrls: string[] = releases.flatMap((release) =>
-    release.assets
-      .filter((asset) => asset.name.endsWith(".sha256"))
-      .map((asset) => asset.browser_download_url),
-  );
-  await updateChecksums(checksumFilePath, checksumDownloadUrls);
 
-  const artifactDownloadUrls: string[] = releases.flatMap((release) =>
+  // Extract checksums from NDJSON
-    release.assets
+  const checksumEntries = extractChecksumsFromNdjson(versions);
-      .filter((asset) => !asset.name.endsWith(".sha256"))
+  await updateChecksums(checksumFilePath, checksumEntries);
-      .map((asset) => asset.browser_download_url),
-  );
 
-  await updateVersionManifest(versionsManifestFile, artifactDownloadUrls);
+  // Extract artifact URLs for version manifest
+  const artifactEntries = extractArtifactsFromNdjson(versions);
+  await updateVersionManifestFromEntries(versionsManifestFile, artifactEntries);
 
-  core.setOutput("latest-version", latestRelease.tag_name);
+  core.setOutput("latest-version", latestVersion);
+}
+
+async function updateVersionManifestFromEntries(
+  filePath: string,
+  entries: ArtifactEntry[],
+): Promise<void> {
+  const manifest = entries.map((entry) => ({
+    arch: entry.arch,
+    artifactName: entry.artifactName,
+    downloadUrl: entry.downloadUrl,
+    platform: entry.platform,
+    version: entry.version,
+  }));
+
+  core.debug(`Updating manifest-file: ${JSON.stringify(manifest)}`);
+  await fs.writeFile(filePath, JSON.stringify(manifest));
 }
 
 run();

src/utils/constants.ts

@@ -3,3 +3,5 @@ export const OWNER = "astral-sh";
 export const TOOL_CACHE_NAME = "uv";
 export const STATE_UV_PATH = "uv-path";
 export const STATE_UV_VERSION = "uv-version";
+export const VERSIONS_NDJSON_URL =
+  "https://raw.githubusercontent.com/astral-sh/versions/main/v1/uv.ndjson";

src/utils/octokit.ts

@@ -1,34 +0,0 @@
-import type { OctokitOptions } from "@octokit/core";
-import { Octokit as Core } from "@octokit/core";
-import {
-  type PaginateInterface,
-  paginateRest,
-} from "@octokit/plugin-paginate-rest";
-import { legacyRestEndpointMethods } from "@octokit/plugin-rest-endpoint-methods";
-import { fetch as customFetch } from "./fetch";
-
-export type { RestEndpointMethodTypes } from "@octokit/plugin-rest-endpoint-methods";
-
-const DEFAULTS = {
-  baseUrl: "https://api.github.com",
-  userAgent: "setup-uv",
-};
-
-const OctokitWithPlugins = Core.plugin(paginateRest, legacyRestEndpointMethods);
-
-export const Octokit = OctokitWithPlugins.defaults(function buildDefaults(
-  options: OctokitOptions,
-): OctokitOptions {
-  return {
-    ...DEFAULTS,
-    ...options,
-    request: {
-      fetch: customFetch,
-      ...options.request,
-    },
-  };
-});
-
-export type Octokit = InstanceType<typeof OctokitWithPlugins> & {
-  paginate: PaginateInterface;
-};