Add support for pip-version (#1129)

* Add pip-version input

* Update workflow files

* Add documentation

* Update workflow files

.github/workflows/e2e-cache-freethreaded.yml

@@ -162,3 +162,60 @@ jobs:
         run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
       - name: Install dependencies
         run: pipenv install requests
+
+  python-pip-dependencies-caching-with-pip-version:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-latest,
+            ubuntu-22.04,
+            ubuntu-24.04-arm,
+            ubuntu-22.04-arm,
+            windows-latest,
+            macos-latest,
+            macos-13
+          ]
+        python-version: [3.13.0t, 3.13.1t, 3.13.2t]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          pip-version: '25.0.1'
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pip-dependencies-caching-path-with-pip-version:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }}, caching path)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-latest,
+            ubuntu-22.04,
+            ubuntu-24.04-arm,
+            ubuntu-22.04-arm,
+            windows-latest,
+            macos-latest,
+            macos-13
+          ]
+        python-version: [3.13.0t, 3.13.1t, 3.13.2t]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          cache-dependency-path: __tests__/data/requirements.txt
+          pip-version: '25.0.1'
+      - name: Install dependencies
+        run: pip install numpy pandas requests

.github/workflows/e2e-cache.yml

@@ -249,3 +249,60 @@ jobs:
           }
       - name: Run Python Script
         run: pipenv run python test-pipenv.py
+
+  python-pip-dependencies-caching-with-pip-version:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            ubuntu-22.04,
+            ubuntu-22.04-arm,
+            windows-latest,
+            macos-latest,
+            macos-13
+          ]
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          pip-version: '25.0.1'
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pip-dependencies-caching-path-with-pip-version:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }}, caching path)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            ubuntu-22.04,
+            ubuntu-22.04-arm,
+            windows-latest,
+            macos-latest,
+            macos-13
+          ]
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          cache-dependency-path: __tests__/data/requirements.txt
+          pip-version: '25.0.1'
+      - name: Install dependencies
+        run: pip install numpy pandas requests

.github/workflows/test-python-freethreaded.yml

@@ -24,7 +24,6 @@ jobs:
           [
             macos-latest,
             windows-latest,
-            ubuntu-20.04,
             ubuntu-22.04,
             ubuntu-22.04-arm,
             macos-13,
@@ -62,7 +61,6 @@ jobs:
           [
             macos-latest,
             windows-latest,
-            ubuntu-20.04,
             ubuntu-22.04,
             ubuntu-22.04-arm,
             macos-13,
@@ -103,7 +101,6 @@ jobs:
           [
             macos-latest,
             windows-latest,
-            ubuntu-20.04,
             ubuntu-22.04,
             ubuntu-22.04-arm,
             macos-13,
@@ -142,7 +139,6 @@ jobs:
           [
             macos-latest,
             windows-latest,
-            ubuntu-20.04,
             ubuntu-22.04,
             ubuntu-22.04-arm,
             macos-13,
@@ -184,7 +180,6 @@ jobs:
           [
             macos-latest,
             windows-latest,
-            ubuntu-20.04,
             ubuntu-22.04,
             ubuntu-22.04-arm,
             macos-13,
@@ -226,7 +221,6 @@ jobs:
           [
             macos-latest,
             windows-latest,
-            ubuntu-20.04,
             ubuntu-22.04,
             ubuntu-22.04-arm,
             macos-13,
@@ -258,7 +252,6 @@ jobs:
           [
             macos-latest,
             windows-latest,
-            ubuntu-20.04,
             ubuntu-22.04,
             ubuntu-22.04-arm,
             macos-13,
@@ -371,7 +364,6 @@ jobs:
           [
             macos-latest,
             windows-latest,
-            ubuntu-20.04,
             ubuntu-22.04,
             ubuntu-22.04-arm,
             macos-13,
@@ -461,7 +453,6 @@ jobs:
           [
             macos-latest,
             windows-latest,
-            ubuntu-20.04,
             ubuntu-22.04,
             ubuntu-22.04-arm,
             macos-13,

.licenses/npm/@actions/tool-cache.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@actions/tool-cache"
-version: 2.0.1
+version: 2.0.2
 type: npm
 summary: Actions tool-cache lib
 homepage: https://github.com/actions/toolkit/tree/main/packages/tool-cache

.licenses/npm/lru-cache.dep.yml

@@ -1,26 +0,0 @@
----
-name: lru-cache
-version: 6.0.0
-type: npm
-summary: A cache object that deletes the least-recently-used items.
-homepage: 
-license: isc
-licenses:
-- sources: LICENSE
-  text: |
-    The ISC License
-
-    Copyright (c) Isaac Z. Schlueter and Contributors
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose with or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-    IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-notices: []

.licenses/npm/semver-7.7.1.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: semver
-version: 7.6.0
+version: 7.7.1
 type: npm
 summary: The semantic version parser used by npm.
 homepage:

.licenses/npm/uuid-3.4.0.dep.yml

@@ -1,39 +0,0 @@
----
-name: uuid
-version: 3.4.0
-type: npm
-summary: RFC4122 (v1, v4, and v5) UUIDs
-homepage: https://github.com/uuidjs/uuid#readme
-license: mit
-licenses:
-- sources: LICENSE.md
-  text: |
-    The MIT License (MIT)
-
-    Copyright (c) 2010-2016 Robert Kieffer and other contributors
-
-    Permission is hereby granted, free of charge, to any person obtaining a copy
-    of this software and associated documentation files (the "Software"), to deal
-    in the Software without restriction, including without limitation the rights
-    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-    copies of the Software, and to permit persons to whom the Software is
-    furnished to do so, subject to the following conditions:
-
-    The above copyright notice and this permission notice shall be included in all
-    copies or substantial portions of the Software.
-
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-    SOFTWARE.
-notices:
-- sources: AUTHORS
-  text: |-
-    Robert Kieffer <robert@broofa.com>
-    Christoph Tavan <dev@tavan.de>
-    AJ ONeal <coolaj86@gmail.com>
-    Vincent Voyer <vincent@zeroload.net>
-    Roman Shtylman <shtylman@gmail.com>

.licenses/npm/uuid.dep.yml

@@ -3,7 +3,7 @@ name: uuid
 version: 8.3.2
 type: npm
 summary: RFC4122 (v1, v4, and v5) UUIDs
-homepage: https://github.com/uuidjs/uuid#readme
+homepage:
 license: mit
 licenses:
 - sources: LICENSE.md

.licenses/npm/yallist.dep.yml

@@ -1,26 +0,0 @@
----
-name: yallist
-version: 4.0.0
-type: npm
-summary: Yet Another Linked List
-homepage: 
-license: isc
-licenses:
-- sources: LICENSE
-  text: |
-    The ISC License
-
-    Copyright (c) Isaac Z. Schlueter and Contributors
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose with or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-    IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-notices: []

README.md

@@ -108,6 +108,7 @@ See examples of using `cache` and `cache-dependency-path` for `pipenv` and `poet
 - [Using `setup-python` with a self-hosted runner](docs/advanced-usage.md#using-setup-python-with-a-self-hosted-runner)
 - [Using `setup-python` on GHES](docs/advanced-usage.md#using-setup-python-on-ghes)
 - [Allow pre-releases](docs/advanced-usage.md#allow-pre-releases)
+- [Using the pip-version input](docs/advanced-usage.md#using-the-pip-version-input)
 
 ## Recommended permissions
 

__tests__/utils.test.ts

@@ -10,7 +10,7 @@ import {
   validatePythonVersionFormatForPyPy,
   isCacheFeatureAvailable,
   getVersionInputFromFile,
-  getVersionInputFromPlainFile,
+  getVersionsInputFromPlainFile,
   getVersionInputFromTomlFile,
   getNextPageUrl,
   isGhes,
@@ -24,10 +24,10 @@ jest.mock('@actions/core');
 
 describe('validatePythonVersionFormatForPyPy', () => {
   it.each([
-    ['3.6', true],
+    ['3.12', true],
-    ['3.7', true],
+    ['3.13', true],
-    ['3.6.x', false],
+    ['3.12.x', false],
-    ['3.7.x', false],
+    ['3.13.x', false],
     ['3.x', false],
     ['3', false]
   ])('%s -> %s', (input, expected) => {
@@ -95,24 +95,52 @@ const tempDir = path.join(
 );
 
 describe('Version from file test', () => {
-  it.each([getVersionInputFromPlainFile, getVersionInputFromFile])(
+  it.each([getVersionsInputFromPlainFile, getVersionInputFromFile])(
     'Version from plain file test',
     async _fn => {
       await io.mkdirP(tempDir);
       const pythonVersionFileName = 'python-version.file';
       const pythonVersionFilePath = path.join(tempDir, pythonVersionFileName);
-      const pythonVersionFileContent = '3.7';
+      const pythonVersionFileContent = '3.13';
       fs.writeFileSync(pythonVersionFilePath, pythonVersionFileContent);
       expect(_fn(pythonVersionFilePath)).toEqual([pythonVersionFileContent]);
     }
   );
+  it.each([getVersionsInputFromPlainFile, getVersionInputFromFile])(
+    'Versions from multiline plain file test',
+    async _fn => {
+      await io.mkdirP(tempDir);
+      const pythonVersionFileName = 'python-version.file';
+      const pythonVersionFilePath = path.join(tempDir, pythonVersionFileName);
+      const pythonVersionFileContent = '3.13\r\n3.12';
+      fs.writeFileSync(pythonVersionFilePath, pythonVersionFileContent);
+      expect(_fn(pythonVersionFilePath)).toEqual(['3.13', '3.12']);
+    }
+  );
+  it.each([getVersionsInputFromPlainFile, getVersionInputFromFile])(
+    'Version from complex plain file test',
+    async _fn => {
+      await io.mkdirP(tempDir);
+      const pythonVersionFileName = 'python-version.file';
+      const pythonVersionFilePath = path.join(tempDir, pythonVersionFileName);
+      const pythonVersionFileContent =
+        '3.13/envs/virtualenv\r# 3.12\n3.11\r\n3.10\r\n 3.9 \r\n';
+      fs.writeFileSync(pythonVersionFilePath, pythonVersionFileContent);
+      expect(_fn(pythonVersionFilePath)).toEqual([
+        '3.13',
+        '3.11',
+        '3.10',
+        '3.9'
+      ]);
+    }
+  );
   it.each([getVersionInputFromTomlFile, getVersionInputFromFile])(
     'Version from standard pyproject.toml test',
     async _fn => {
       await io.mkdirP(tempDir);
       const pythonVersionFileName = 'pyproject.toml';
       const pythonVersionFilePath = path.join(tempDir, pythonVersionFileName);
-      const pythonVersion = '>=3.7.0';
+      const pythonVersion = '>=3.13.0';
       const pythonVersionFileContent = `[project]\nrequires-python = "${pythonVersion}"`;
       fs.writeFileSync(pythonVersionFilePath, pythonVersionFileContent);
       expect(_fn(pythonVersionFilePath)).toEqual([pythonVersion]);
@@ -124,7 +152,7 @@ describe('Version from file test', () => {
       await io.mkdirP(tempDir);
       const pythonVersionFileName = 'pyproject.toml';
       const pythonVersionFilePath = path.join(tempDir, pythonVersionFileName);
-      const pythonVersion = '>=3.7.0';
+      const pythonVersion = '>=3.13.0';
       const pythonVersionFileContent = `[tool.poetry.dependencies]\npython = "${pythonVersion}"`;
       fs.writeFileSync(pythonVersionFilePath, pythonVersionFileContent);
       expect(_fn(pythonVersionFilePath)).toEqual([pythonVersion]);
@@ -145,9 +173,9 @@ describe('Version from file test', () => {
     async _fn => {
       const toolVersionFileName = '.tool-versions';
       const toolVersionFilePath = path.join(tempDir, toolVersionFileName);
-      const toolVersionContent = 'python 3.9.10\nnodejs 16';
+      const toolVersionContent = 'python 3.13.2\nnodejs 16';
       fs.writeFileSync(toolVersionFilePath, toolVersionContent);
-      expect(_fn(toolVersionFilePath)).toEqual(['3.9.10']);
+      expect(_fn(toolVersionFilePath)).toEqual(['3.13.2']);
     }
   );
 
@@ -156,9 +184,9 @@ describe('Version from file test', () => {
     async _fn => {
       const toolVersionFileName = '.tool-versions';
       const toolVersionFilePath = path.join(tempDir, toolVersionFileName);
-      const toolVersionContent = '# python 3.8\npython 3.9';
+      const toolVersionContent = '# python 3.13\npython 3.12';
       fs.writeFileSync(toolVersionFilePath, toolVersionContent);
-      expect(_fn(toolVersionFilePath)).toEqual(['3.9']);
+      expect(_fn(toolVersionFilePath)).toEqual(['3.12']);
     }
   );
 
@@ -167,9 +195,9 @@ describe('Version from file test', () => {
     async _fn => {
       const toolVersionFileName = '.tool-versions';
       const toolVersionFilePath = path.join(tempDir, toolVersionFileName);
-      const toolVersionContent = '  python   3.10  ';
+      const toolVersionContent = '  python   3.13  ';
       fs.writeFileSync(toolVersionFilePath, toolVersionContent);
-      expect(_fn(toolVersionFilePath)).toEqual(['3.10']);
+      expect(_fn(toolVersionFilePath)).toEqual(['3.13']);
     }
   );
 
@@ -178,9 +206,9 @@ describe('Version from file test', () => {
     async _fn => {
       const toolVersionFileName = '.tool-versions';
       const toolVersionFilePath = path.join(tempDir, toolVersionFileName);
-      const toolVersionContent = 'python v3.9.10';
+      const toolVersionContent = 'python v3.13.2';
       fs.writeFileSync(toolVersionFilePath, toolVersionContent);
-      expect(_fn(toolVersionFilePath)).toEqual(['3.9.10']);
+      expect(_fn(toolVersionFilePath)).toEqual(['3.13.2']);
     }
   );
 
@@ -189,9 +217,9 @@ describe('Version from file test', () => {
     async _fn => {
       const toolVersionFileName = '.tool-versions';
       const toolVersionFilePath = path.join(tempDir, toolVersionFileName);
-      const toolVersionContent = 'python pypy3.10-7.3.14';
+      const toolVersionContent = 'python pypy3.10-7.3.19';
       fs.writeFileSync(toolVersionFilePath, toolVersionContent);
-      expect(_fn(toolVersionFilePath)).toEqual(['pypy3.10-7.3.14']);
+      expect(_fn(toolVersionFilePath)).toEqual(['pypy3.10-7.3.19']);
     }
   );
 

action.yml

@@ -29,6 +29,8 @@ inputs:
   freethreaded:
     description: "When 'true', use the freethreaded version of Python."
     default: false
+  pip-version:
+    description: "Used to specify the version of pip to install with the Python. Supported format: major[.minor][.patch]."
 outputs:
   python-version:
     description: "The installed Python or PyPy version. Useful when given a version range as input."

docs/advanced-usage.md

@@ -22,6 +22,7 @@
     - [macOS](advanced-usage.md#macos)
 - [Using `setup-python` on GHES](advanced-usage.md#using-setup-python-on-ghes)
 - [Allow pre-releases](advanced-usage.md#allow-pre-releases)
+- [Using the pip-version input](advanced-usage.md#using-the-pip-version-input)
 
 ## Using the `python-version` input
 
@@ -643,3 +644,22 @@ jobs:
       - run: pipx run nox --error-on-missing-interpreters -s tests-${{ matrix.python_version }}
 ```
 
+## Using the pip-version input
+
+The `pip-version` input allows you to specify the desired version of **Pip** to use with the standard Python version.
+The version of Pip should be specified in the format `major`, `major.minor`, or `major.minor.patch` (for example: 25, 25.1, or 25.0.1).
+
+```yaml
+      steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.13'
+          pip-version: '25.0.1'
+      - name: Display Pip version
+        run: pip --version
+```
+> The `pip-version` input is supported only with standard Python versions. It is not available when using PyPy or GraalPy.
+
+> Using a specific or outdated version of pip may result in compatibility or security issues and can cause job failures. For best practices and guidance, refer to the official [pip documentation](https://pip.pypa.io/en/stable/).

package-lock.json

@@ -15,14 +15,14 @@
         "@actions/glob": "^0.5.0",
         "@actions/http-client": "^2.2.3",
         "@actions/io": "^1.0.2",
-        "@actions/tool-cache": "^2.0.1",
+        "@actions/tool-cache": "^2.0.2",
         "@iarna/toml": "^3.0.0",
-        "semver": "^7.6.0"
+        "semver": "^7.7.1"
       },
       "devDependencies": {
         "@types/jest": "^29.5.12",
         "@types/node": "^20.11.25",
-        "@types/semver": "^7.5.8",
+        "@types/semver": "^7.7.0",
         "@typescript-eslint/eslint-plugin": "^5.54.0",
         "@typescript-eslint/parser": "^5.54.0",
         "@vercel/ncc": "^0.38.3",
@@ -32,8 +32,8 @@
         "eslint-plugin-node": "^11.1.0",
         "jest": "^29.7.0",
         "jest-circus": "^29.7.0",
-        "prettier": "^2.8.4",
+        "prettier": "^3.5.3",
-        "ts-jest": "^29.3.0",
+        "ts-jest": "^29.3.2",
         "typescript": "^5.4.2"
       }
     },
@@ -123,16 +123,16 @@
       "integrity": "sha512-wi9JjgKLYS7U/z8PPbco+PvTb/nRWjeoFlJ1Qer83k/3C5PHQi28hiVdeE2kHXmIL99mQFawx8qt/JPjZilJ8Q=="
     },
     "node_modules/@actions/tool-cache": {
-      "version": "2.0.1",
+      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/@actions/tool-cache/-/tool-cache-2.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/@actions/tool-cache/-/tool-cache-2.0.2.tgz",
-      "integrity": "sha512-iPU+mNwrbA8jodY8eyo/0S/QqCKDajiR8OxWTnSk/SnYg0sj8Hp4QcUEVC1YFpHWXtrfbQrE13Jz4k4HXJQKcA==",
+      "integrity": "sha512-fBhNNOWxuoLxztQebpOaWu6WeVmuwa77Z+DxIZ1B+OYvGkGQon6kTVg6Z32Cb13WCuw0szqonK+hh03mJV7Z6w==",
+      "license": "MIT",
       "dependencies": {
-        "@actions/core": "^1.2.6",
+        "@actions/core": "^1.11.1",
         "@actions/exec": "^1.0.0",
         "@actions/http-client": "^2.0.1",
         "@actions/io": "^1.1.1",
-        "semver": "^6.1.0",
+        "semver": "^6.1.0"
-        "uuid": "^3.3.2"
       }
     },
     "node_modules/@actions/tool-cache/node_modules/semver": {
@@ -1620,10 +1620,11 @@
       }
     },
     "node_modules/@types/semver": {
-      "version": "7.5.8",
+      "version": "7.7.0",
-      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-7.5.8.tgz",
+      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-7.7.0.tgz",
-      "integrity": "sha512-I8EUhyrgfLrcTkzV3TSsGyl1tSuPrEDzr0yd5m90UgNxQkyDXULk3b6MlQqTCpZpNtWe1K0hzclnZkTcLBe2UQ==",
+      "integrity": "sha512-k107IF4+Xr7UHjwDc7Cfd6PRQfbdkiRabXGRjo07b4WyPahFBZCZ1sE+BNxYIJPPg73UkfOsVOLwqVc/6ETrIA==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/@types/stack-utils": {
       "version": "2.0.3",
@@ -4644,15 +4645,16 @@
       }
     },
     "node_modules/prettier": {
-      "version": "2.8.8",
+      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.8.tgz",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.5.3.tgz",
-      "integrity": "sha512-tdN8qQGvNjw4CHbY+XXk0JgCXn9QiF21a55rBe5LJAU+kDyC4WQn4+awm2Xfk2lQMk5fKup9XgzTZtGkjBdP9Q==",
+      "integrity": "sha512-QQtaxnoDJeAkDvDKWCLiwIXkTgRhwYDEQCghU9Z6q03iyek/rxRh/2lC3HB7P8sWT2xC/y5JDctPLBIGzHKbhw==",
       "dev": true,
+      "license": "MIT",
       "bin": {
-        "prettier": "bin-prettier.js"
+        "prettier": "bin/prettier.cjs"
       },
       "engines": {
-        "node": ">=10.13.0"
+        "node": ">=14"
       },
       "funding": {
         "url": "https://github.com/prettier/prettier?sponsor=1"
@@ -5123,9 +5125,9 @@
       "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw=="
     },
     "node_modules/ts-jest": {
-      "version": "29.3.0",
+      "version": "29.3.2",
-      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-29.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-29.3.2.tgz",
-      "integrity": "sha512-4bfGBX7Gd1Aqz3SyeDS9O276wEU/BInZxskPrbhZLyv+c1wskDCqDFMJQJLWrIr/fKoAH4GE5dKUlrdyvo+39A==",
+      "integrity": "sha512-bJJkrWc6PjFVz5g2DGCNUo8z7oFEYaz1xP1NpeDU7KNLMWPpEyV8Chbpkn8xjzgRDpQhnGMyvyldoL7h8JXyug==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -5137,7 +5139,7 @@
         "lodash.memoize": "^4.1.2",
         "make-error": "^1.3.6",
         "semver": "^7.7.1",
-        "type-fest": "^4.37.0",
+        "type-fest": "^4.39.1",
         "yargs-parser": "^21.1.1"
       },
       "bin": {
@@ -5173,9 +5175,9 @@
       }
     },
     "node_modules/ts-jest/node_modules/type-fest": {
-      "version": "4.38.0",
+      "version": "4.40.0",
-      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-4.38.0.tgz",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-4.40.0.tgz",
-      "integrity": "sha512-2dBz5D5ycHIoliLYLi0Q2V7KRaDlH0uWIvmk7TYlAg5slqwiPv1ezJdZm1QEM0xgk29oYWMCbIG7E6gHpvChlg==",
+      "integrity": "sha512-ABHZ2/tS2JkvH1PEjxFDTUWC8dB5OsIGZP4IFLhR293GqT5Y5qB1WwL2kMPYhQW9DVgVD8Hd7I8gjwPIf5GFkw==",
       "dev": true,
       "license": "(MIT OR CC0-1.0)",
       "engines": {
@@ -5321,15 +5323,6 @@
         "punycode": "^2.1.0"
       }
     },
-    "node_modules/uuid": {
-      "version": "3.4.0",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
-      "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==",
-      "deprecated": "Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.",
-      "bin": {
-        "uuid": "bin/uuid"
-      }
-    },
     "node_modules/v8-to-istanbul": {
       "version": "9.1.3",
       "resolved": "https://registry.npmjs.org/v8-to-istanbul/-/v8-to-istanbul-9.1.3.tgz",

package.json

@@ -31,14 +31,14 @@
     "@actions/glob": "^0.5.0",
     "@actions/http-client": "^2.2.3",
     "@actions/io": "^1.0.2",
-    "@actions/tool-cache": "^2.0.1",
+    "@actions/tool-cache": "^2.0.2",
     "@iarna/toml": "^3.0.0",
-    "semver": "^7.6.0"
+    "semver": "^7.7.1"
   },
   "devDependencies": {
     "@types/jest": "^29.5.12",
     "@types/node": "^20.11.25",
-    "@types/semver": "^7.5.8",
+    "@types/semver": "^7.7.0",
     "@typescript-eslint/eslint-plugin": "^5.54.0",
     "@typescript-eslint/parser": "^5.54.0",
     "@vercel/ncc": "^0.38.3",
@@ -48,8 +48,8 @@
     "eslint-plugin-node": "^11.1.0",
     "jest": "^29.7.0",
     "jest-circus": "^29.7.0",
-    "prettier": "^2.8.4",
+    "prettier": "^3.5.3",
-    "ts-jest": "^29.3.0",
+    "ts-jest": "^29.3.2",
     "typescript": "^5.4.2"
   }
 }

src/find-python.ts

@@ -8,6 +8,7 @@ import * as installer from './install-python';
 
 import * as core from '@actions/core';
 import * as tc from '@actions/tool-cache';
+import * as exec from '@actions/exec';
 
 // Python has "scripts" or "bin" directories where command-line tools that come with packages are installed.
 // This is where pip is, along with anything that pip installs.
@@ -30,6 +31,27 @@ function binDir(installDir: string): string {
   }
 }
 
+async function installPip(pythonLocation: string) {
+  const pipVersion = core.getInput('pip-version');
+
+  // Validate pip-version format: major[.minor][.patch]
+  const versionRegex = /^\d+(\.\d+)?(\.\d+)?$/;
+  if (pipVersion && !versionRegex.test(pipVersion)) {
+    throw new Error(
+      `Invalid pip-version "${pipVersion}". Please specify a version in the format major[.minor][.patch].`
+    );
+  }
+
+  if (pipVersion) {
+    core.info(
+      `pip-version input is specified. Installing pip version ${pipVersion}`
+    );
+    await exec.exec(
+      `${pythonLocation}/python -m pip install --upgrade pip==${pipVersion} --disable-pip-version-check --no-warn-script-location`
+    );
+  }
+}
+
 export async function useCpythonVersion(
   version: string,
   architecture: string,
@@ -179,6 +201,9 @@ export async function useCpythonVersion(
   core.setOutput('python-version', pythonVersion);
   core.setOutput('python-path', pythonPath);
 
+  const binaryPath = IS_WINDOWS ? installDir : _binDir;
+  await installPip(binaryPath);
+
   return {impl: 'CPython', version: pythonVersion};
 }
 

src/setup-python.ts

@@ -11,7 +11,7 @@ import {
   logWarning,
   IS_MAC,
   getVersionInputFromFile,
-  getVersionInputFromPlainFile
+  getVersionsInputFromPlainFile
 } from './utils';
 
 function isPyPyVersion(versionSpec: string) {
@@ -35,7 +35,7 @@ async function cacheDependencies(cache: string, pythonVersion: string) {
 
 function resolveVersionInputFromDefaultFile(): string[] {
   const couples: [string, (versionFile: string) => string[]][] = [
-    ['.python-version', getVersionInputFromPlainFile]
+    ['.python-version', getVersionsInputFromPlainFile]
   ];
   for (const [versionFile, _fn] of couples) {
     logWarning(

src/utils.ts

@@ -228,7 +228,7 @@ function extractValue(obj: any, keys: string[]): string | undefined {
  * If none is present, returns an empty list.
  */
 export function getVersionInputFromTomlFile(versionFile: string): string[] {
-  core.debug(`Trying to resolve version form ${versionFile}`);
+  core.debug(`Trying to resolve version from ${versionFile}`);
 
   let pyprojectFile = fs.readFileSync(versionFile, 'utf8');
   // Normalize the line endings in the pyprojectFile
@@ -269,13 +269,28 @@ export function getVersionInputFromTomlFile(versionFile: string): string[] {
 }
 
 /**
- * Python version extracted from a plain text file.
+ * Python versions extracted from a plain text file.
+ * - Resolves multiple versions from multiple lines.
+ * - Handles pyenv-virtualenv pointers (e.g. `3.10/envs/virtualenv`).
+ * - Ignores empty lines and lines starting with `#`
+ * - Trims whitespace.
  */
-export function getVersionInputFromPlainFile(versionFile: string): string[] {
+export function getVersionsInputFromPlainFile(versionFile: string): string[] {
-  core.debug(`Trying to resolve version form ${versionFile}`);
+  core.debug(`Trying to resolve versions from ${versionFile}`);
-  const version = fs.readFileSync(versionFile, 'utf8').trim();
+  const content = fs.readFileSync(versionFile, 'utf8').trim();
-  core.info(`Resolved ${versionFile} as ${version}`);
+  const lines = content.split(/\r\n|\r|\n/);
-  return [version];
+  const versions = lines
+    .map(line => {
+      if (line.startsWith('#') || line.trim() === '') {
+        return undefined;
+      }
+      let version: string = line.trim();
+      version = version.split('/')[0];
+      return version;
+    })
+    .filter(version => version !== undefined) as string[];
+  core.info(`Resolved ${versionFile} as ${versions.join(', ')}`);
+  return versions;
 }
 
 /**
@@ -319,7 +334,7 @@ export function getVersionInputFromFile(versionFile: string): string[] {
   } else if (versionFile.match('.tool-versions')) {
     return getVersionInputFromToolVersions(versionFile);
   } else {
-    return getVersionInputFromPlainFile(versionFile);
+    return getVersionsInputFromPlainFile(versionFile);
   }
 }