feature: add version parsing from Pipfile

Author: aradkdj

.github/workflows/test-python.yml

@@ -284,6 +284,108 @@ jobs:
         with:
           python-version-file: .tool-versions
 
+  setup-versions-from-pipfile-with-python_version:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} Pipfile with python_version
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            macos-latest,
+            windows-latest,
+            ubuntu-20.04,
+            ubuntu-22.04,
+            ubuntu-22.04-arm,
+            macos-13,
+            ubuntu-latest,
+            ubuntu-24.04-arm
+          ]
+        python: [3.9.13, 3.10.11, 3.11.9, 3.13.2]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[requires]
+            python_version = "${{ matrix.python }}"
+          ' > Pipfile
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: Pipfile
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python ${{ matrix.python }}".replace("==", "") -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-pipfile-with-python_full_version:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} Pipfile with python_full_version
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            macos-latest,
+            windows-latest,
+            ubuntu-20.04,
+            ubuntu-22.04,
+            ubuntu-22.04-arm,
+            macos-13,
+            ubuntu-latest,
+            ubuntu-24.04-arm
+          ]
+        python: [3.9.13, 3.10.11, 3.11.9, 3.13.2]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[requires]
+            python_full_version = "${{ matrix.python }}"
+          ' > Pipfile
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: Pipfile
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python ${{ matrix.python }}".replace("==", "") -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
   setup-pre-release-version-from-manifest:
     name: Setup 3.14.0-alpha.6 ${{ matrix.os }}
     runs-on: ${{ matrix.os }}

__tests__/utils.test.ts

@@ -12,6 +12,7 @@ import {
   getVersionInputFromFile,
   getVersionsInputFromPlainFile,
   getVersionInputFromTomlFile,
+  getVersionInputFromPipfileFile,
   getNextPageUrl,
   isGhes,
   IS_WINDOWS,
@@ -244,6 +245,44 @@ describe('Version from file test', () => {
       expect(_fn(toolVersionFilePath)).toEqual(['3.14t-dev']);
     }
   );
+
+  it.each([getVersionInputFromPipfileFile, getVersionInputFromFile])(
+    'Version from python_version in Pipfile',
+    async _fn => {
+      await io.mkdirP(tempDir);
+      const pythonVersionFileName = 'Pipfile';
+      const pythonVersionFilePath = path.join(tempDir, pythonVersionFileName);
+      const pythonVersion = '3.13';
+      const pythonVersionFileContent = `[requires]\npython_version = "${pythonVersion}"`;
+      fs.writeFileSync(pythonVersionFilePath, pythonVersionFileContent);
+      expect(_fn(pythonVersionFilePath)).toEqual([pythonVersion]);
+    }
+  );
+
+  it.each([getVersionInputFromPipfileFile, getVersionInputFromFile])(
+    'Version from python_full_version in Pipfile',
+    async _fn => {
+      await io.mkdirP(tempDir);
+      const pythonVersionFileName = 'Pipfile';
+      const pythonVersionFilePath = path.join(tempDir, pythonVersionFileName);
+      const pythonVersion = '3.13.0';
+      const pythonVersionFileContent = `[requires]\npython_full_version = "${pythonVersion}"`;
+      fs.writeFileSync(pythonVersionFilePath, pythonVersionFileContent);
+      expect(_fn(pythonVersionFilePath)).toEqual([pythonVersion]);
+    }
+  );
+
+  it.each([getVersionInputFromPipfileFile, getVersionInputFromFile])(
+    'Pipfile undefined version',
+    async _fn => {
+      await io.mkdirP(tempDir);
+      const pythonVersionFileName = 'Pipfile';
+      const pythonVersionFilePath = path.join(tempDir, pythonVersionFileName);
+      const pythonVersionFileContent = ``;
+      fs.writeFileSync(pythonVersionFilePath, pythonVersionFileContent);
+      expect(_fn(pythonVersionFilePath)).toEqual([]);
+    }
+  );
 });
 
 describe('getNextPageUrl', () => {

dist/setup/index.js

@@ -97066,7 +97066,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.getDownloadFileName = exports.getNextPageUrl = exports.getBinaryDirectory = exports.getVersionInputFromFile = exports.getVersionInputFromToolVersions = exports.getVersionsInputFromPlainFile = exports.getVersionInputFromTomlFile = exports.getOSInfo = exports.getLinuxInfo = exports.logWarning = exports.isCacheFeatureAvailable = exports.isGhes = exports.validatePythonVersionFormatForPyPy = exports.writeExactPyPyVersionFile = exports.readExactPyPyVersionFile = exports.getPyPyVersionFromPath = exports.isNightlyKeyword = exports.validateVersion = exports.createSymlinkInFolder = exports.WINDOWS_PLATFORMS = exports.WINDOWS_ARCHS = exports.IS_MAC = exports.IS_LINUX = exports.IS_WINDOWS = void 0;
+exports.getDownloadFileName = exports.getNextPageUrl = exports.getBinaryDirectory = exports.getVersionInputFromFile = exports.getVersionInputFromPipfileFile = exports.getVersionInputFromToolVersions = exports.getVersionsInputFromPlainFile = exports.getVersionInputFromTomlFile = exports.getOSInfo = exports.getLinuxInfo = exports.logWarning = exports.isCacheFeatureAvailable = exports.isGhes = exports.validatePythonVersionFormatForPyPy = exports.writeExactPyPyVersionFile = exports.readExactPyPyVersionFile = exports.getPyPyVersionFromPath = exports.isNightlyKeyword = exports.validateVersion = exports.createSymlinkInFolder = exports.WINDOWS_PLATFORMS = exports.WINDOWS_ARCHS = exports.IS_MAC = exports.IS_LINUX = exports.IS_WINDOWS = void 0;
 /* eslint no-unsafe-finally: "off" */
 const cache = __importStar(__nccwpck_require__(5116));
 const core = __importStar(__nccwpck_require__(7484));
@@ -97336,7 +97336,37 @@ function getVersionInputFromToolVersions(versionFile) {
 }
 exports.getVersionInputFromToolVersions = getVersionInputFromToolVersions;
 /**
- * Python version extracted from a plain, .tool-versions or TOML file.
+ * Python version extracted from the Pipfile file.
+ */
+function getVersionInputFromPipfileFile(versionFile) {
+    core.debug(`Trying to resolve version form ${versionFile}`);
+    let pipfileFile = fs_1.default.readFileSync(versionFile, 'utf8');
+    // Normalize the line endings in the pipfileFile
+    pipfileFile = pipfileFile.replace(/\r\n/g, '\n');
+    const pipfileConfig = toml.parse(pipfileFile);
+    const keys = ['requires'];
+    if (!('requires' in pipfileConfig)) {
+        core.warning(`No Python version found in ${versionFile}`);
+        return [];
+    }
+    if ('python_full_version' in pipfileConfig['requires']) {
+        // specifies a full python version
+        keys.push('python_full_version');
+    }
+    else {
+        keys.push('python_version');
+    }
+    const versions = [];
+    const version = extractValue(pipfileConfig, keys);
+    if (version !== undefined) {
+        versions.push(version);
+    }
+    core.info(`Extracted ${versions} from ${versionFile}`);
+    return [extractValue(pipfileConfig, keys)];
+}
+exports.getVersionInputFromPipfileFile = getVersionInputFromPipfileFile;
+/**
+ * Python version extracted from a plain, .tool-versions, Pipfile or TOML file.
  */
 function getVersionInputFromFile(versionFile) {
     if (versionFile.endsWith('.toml')) {
@@ -97345,6 +97375,9 @@ function getVersionInputFromFile(versionFile) {
     else if (versionFile.match('.tool-versions')) {
         return getVersionInputFromToolVersions(versionFile);
     }
+    else if (versionFile.match('Pipfile')) {
+        return getVersionInputFromPipfileFile(versionFile);
+    }
     else {
         return getVersionsInputFromPlainFile(versionFile);
     }

docs/advanced-usage.md

@@ -309,6 +309,15 @@ steps:
 - run: python my_script.py
 ```
 
+```yaml
+steps:
+- uses: actions/checkout@v4
+- uses: actions/setup-python@v5
+  with:
+    python-version-file: 'Pipfile' # Read python version from a file Pipfile
+- run: python my_script.py
+```
+
 ## Check latest version
 
 The `check-latest` flag defaults to `false`. Use the default or set `check-latest` to `false` if you prefer stability and if you want to ensure a specific `Python or PyPy` version is always used.

src/utils.ts

@@ -325,14 +325,50 @@ export function getVersionInputFromToolVersions(versionFile: string): string[] {
     return [];
   }
 }
+
+/**
+ * Python version extracted from the Pipfile file.
+ */
+export function getVersionInputFromPipfileFile(versionFile: string): string[] {
+  core.debug(`Trying to resolve version form ${versionFile}`);
+
+  let pipfileFile = fs.readFileSync(versionFile, 'utf8');
+  // Normalize the line endings in the pipfileFile
+  pipfileFile = pipfileFile.replace(/\r\n/g, '\n');
+
+  const pipfileConfig = toml.parse(pipfileFile);
+  const keys = ['requires'];
+
+  if (!('requires' in pipfileConfig)) {
+    core.warning(`No Python version found in ${versionFile}`);
+    return [];
+  }
+  if ('python_full_version' in (pipfileConfig['requires'] as toml.JsonMap)) {
+    // specifies a full python version
+    keys.push('python_full_version');
+  } else {
+    keys.push('python_version');
+  }
+  const versions = [];
+  const version = extractValue(pipfileConfig, keys);
+  if (version !== undefined) {
+    versions.push(version);
+  }
+
+  core.info(`Extracted ${versions} from ${versionFile}`);
+  return [extractValue(pipfileConfig, keys)] as string[];
+}
+
 /**
- * Python version extracted from a plain, .tool-versions or TOML file.
+ * Python version extracted from a plain, .tool-versions, Pipfile or TOML file.
  */
 export function getVersionInputFromFile(versionFile: string): string[] {
   if (versionFile.endsWith('.toml')) {
     return getVersionInputFromTomlFile(versionFile);
   } else if (versionFile.match('.tool-versions')) {
     return getVersionInputFromToolVersions(versionFile);
+  } else if (versionFile.match('Pipfile')) {
+    return getVersionInputFromPipfileFile(versionFile);
   } else {
     return getVersionsInputFromPlainFile(versionFile);
   }