Implementation of python's caching (#266)

.github/workflows/e2e-cache.yml

@@ -0,0 +1,93 @@
+name: e2e-cache
+
+on:
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  push:
+    branches:
+      - main
+      - releases/*
+    paths-ignore:
+      - '**.md'
+
+permissions:
+  contents: read
+jobs:
+  python-pip-dependencies-caching:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ['3.7', '3.8', '3.9', 'pypy-3.7-v7.3.5', 'pypy-3.7-v7.x']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pipenv-dependencies-caching:
+    name: Test pipenv (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ['3.7', '3.8', '3.9', 'pypy-3.7-v7.3.5', 'pypy-3.7-v7.x']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install pipenv
+        run: pipx install pipenv
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pipenv'
+      - name: Install dependencies
+        run: pipenv install flake8
+
+  python-pip-dependencies-caching-path:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ['3.7', '3.8', '3.9', 'pypy-3.7-v7.3.5', 'pypy-3.7-v7.x']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          cache-dependency-path: __tests__/data/requirements.txt
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pipenv-dependencies-caching-path:
+    name: Test pipenv (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ['3.7', '3.8', '3.9', 'pypy-3.7-v7.3.5', 'pypy-3.7-v7.x']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install pipenv
+        run: pipx install pipenv
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pipenv'
+          cache-dependency-path: '**/requirements-linux.txt'
+      - name: Install dependencies
+        run: pipenv install flake8

.licensed.yml

@@ -9,6 +9,7 @@ allowed:
   - mit
   - cc0-1.0
   - unlicense
+  - 0bsd
 
 reviewed:
   npm:

README.md

@@ -9,6 +9,7 @@ This action sets up a Python environment for use in actions by:
 - optionally installing and adding to PATH a version of Python that is already installed in the tools cache.
 - downloading, installing and adding to PATH an available version of Python from GitHub Releases ([actions/python-versions](https://github.com/actions/python-versions/releases)) if a specific version is not available in the tools cache.
 - failing if a specific version of Python is not preinstalled or available for download.
+- optionally caching dependencies for pip and pipenv.
 - registering problem matchers for error output.
 
 # What's new
@@ -18,6 +19,7 @@ This action sets up a Python environment for use in actions by:
 - Automatic setup and download of Python packages if using a self-hosted runner.
 - Support for pre-release versions of Python.
 - Support for installing any version of PyPy on-flight
+- Support for built-in caching of pip and pipenv dependencies
 
 # Usage
 
@@ -205,6 +207,76 @@ pypy-3.7-v7.3.3rc1 # Python 3.7 and preview version of PyPy
 pypy-3.7-nightly # Python 3.7 and nightly PyPy
 ```
 
+# Caching packages dependencies
+
+The action has built-in functionality for caching and restoring dependencies. It uses [actions/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under the hood for caching dependencies but requires less configuration settings. Supported package managers are `pip` and `pipenv`. The `cache` input is optional, and caching is turned off by default.
+
+The action defaults to searching for a dependency file (`requirements.txt` for pip or `Pipfile.lock` for pipenv) in the repository, and uses its hash as a part of the cache key. Use `cache-dependency-path` for cases where multiple dependency files are used, they are located in different subdirectories or different files for the hash want to be used.
+
+ - For pip, the action will cache global cache directory
+ - For pipenv, the action will cache virtualenv directory
+
+**Please Note:** Restored cache will not be used if the requirements.txt file is not updated for a long time and a newer version of the dependency is available that can lead to an increase in total build time.
+
+The requirements file format allows to specify dependency versions using logical operators (for example chardet>=3.0.4) or specify dependencies without any versions. In this case the pip install -r requirements.txt command will always try to install the latest available package version. To be sure that the cache will be used, please stick to a specific dependency version and update it manually if necessary.
+
+**Caching pip dependencies:**  
+
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-python@v2
+  with:
+    python-version: '3.9'
+    cache: 'pip'
+- run: pip install -r requirements.txt
+- run: pip test
+```
+
+**Caching pipenv dependencies:**
+```yaml
+steps:
+- uses: actions/checkout@v2
+- name: Install pipenv
+  run: pipx install pipenv
+- uses: actions/setup-python@v2
+  with:
+    python-version: '3.9'
+    cache: 'pipenv'
+- run: pipenv install
+- run: pipenv test
+```
+
+**Using wildcard patterns to cache dependencies**
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-python@v2
+  with:
+    python-version: '3.9'
+    cache: 'pip'
+    cache-dependency-path: '**/requirements-dev.txt'
+- run: pip install -r subdirectory/requirements-dev.txt
+- run: pip test
+```
+
+**Using a list of file paths to cache dependencies**
+```yaml
+steps:
+- uses: actions/checkout@v2
+- name: Install pipenv
+  run: pipx install pipenv
+- uses: actions/setup-python@v2
+  with:
+    python-version: '3.9'
+    cache: 'pipenv'
+    cache-dependency-path: |
+      server/app/Pipfile.lock
+      __test__/app/Pipfile.lock
+- run: pipenv install
+- run: pipenv test
+```
+
 # Using `setup-python` with a self hosted runner
 
 Python distributions are only available for the same [environments](https://github.com/actions/virtual-environments#available-environments) that GitHub Actions hosted environments are available for. If you are using an unsupported version of Ubuntu such as `19.04` or another Linux distribution such as Fedora, `setup-python` will not work. If you have a supported self-hosted runner and you would like to use `setup-python`, there are a few extra things you need to make sure are set up so that new versions of Python can be downloaded and configured on your runner.

__tests__/cache-restore.test.ts

@@ -0,0 +1,175 @@
+import * as core from '@actions/core';
+import * as cache from '@actions/cache';
+import * as exec from '@actions/exec';
+import {getCacheDistributor} from '../src/cache-distributions/cache-factory';
+
+describe('restore-cache', () => {
+  const pipFileLockHash =
+    '67d817abcde9c72da0ed5b8f235647cb14638b9ff9d742b42e4406d2eb16fe3c';
+  const requirementsHash =
+    'd8110e0006d7fb5ee76365d565eef9d37df1d11598b912d3eb66d398d57a1121';
+  const requirementsLinuxHash =
+    '2d0ff7f46b0e120e3d3294db65768b474934242637b9899b873e6283dfd16d7c';
+
+  // core spy
+  let infoSpy: jest.SpyInstance;
+  let warningSpy: jest.SpyInstance;
+  let debugSpy: jest.SpyInstance;
+  let saveSatetSpy: jest.SpyInstance;
+  let getStateSpy: jest.SpyInstance;
+
+  // cache spy
+  let restoreCacheSpy: jest.SpyInstance;
+
+  // exec spy
+  let getExecOutputSpy: jest.SpyInstance;
+
+  beforeEach(() => {
+    process.env['RUNNER_OS'] = process.env['RUNNER_OS'] ?? 'linux';
+
+    infoSpy = jest.spyOn(core, 'info');
+    infoSpy.mockImplementation(input => undefined);
+
+    warningSpy = jest.spyOn(core, 'warning');
+    warningSpy.mockImplementation(input => undefined);
+
+    debugSpy = jest.spyOn(core, 'debug');
+    debugSpy.mockImplementation(input => undefined);
+
+    saveSatetSpy = jest.spyOn(core, 'saveState');
+    saveSatetSpy.mockImplementation(input => undefined);
+
+    getStateSpy = jest.spyOn(core, 'getState');
+    getStateSpy.mockImplementation(input => undefined);
+
+    getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+    getExecOutputSpy.mockImplementation((input: string) => {
+      if (input.includes('pip')) {
+        return {stdout: 'pip', stderr: '', exitCode: 0};
+      }
+
+      return {stdout: '', stderr: 'Error occured', exitCode: 2};
+    });
+
+    restoreCacheSpy = jest.spyOn(cache, 'restoreCache');
+    restoreCacheSpy.mockImplementation(
+      (cachePaths: string[], primaryKey: string, restoreKey?: string) => {
+        return primaryKey;
+      }
+    );
+  });
+
+  describe('Validate provided package manager', () => {
+    it.each(['npm', 'pip2', 'pip21', 'pip21.3', 'pipenv32'])(
+      'Throw an error because %s is not supported',
+      async packageManager => {
+        expect(() =>
+          getCacheDistributor(packageManager, '3.8.12', undefined)
+        ).toThrowError(`Caching for '${packageManager}' is not supported`);
+      }
+    );
+  });
+
+  describe('Restore dependencies', () => {
+    it.each([
+      ['pip', '3.8.12', undefined, requirementsHash],
+      ['pip', '3.8.12', '**/requirements-linux.txt', requirementsLinuxHash],
+      [
+        'pip',
+        '3.8.12',
+        '__tests__/data/requirements-linux.txt',
+        requirementsLinuxHash
+      ],
+      ['pip', '3.8.12', '__tests__/data/requirements.txt', requirementsHash],
+      ['pipenv', '3.9.1', undefined, pipFileLockHash],
+      ['pipenv', '3.9.12', '__tests__/data/requirements.txt', requirementsHash]
+    ])(
+      'restored dependencies for %s by primaryKey',
+      async (packageManager, pythonVersion, dependencyFile, fileHash) => {
+        const cacheDistributor = await getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        );
+        await cacheDistributor.restoreCache();
+        let pythonKey = '';
+        if (packageManager === 'pipenv') {
+          pythonKey = `python-${pythonVersion}-`;
+        }
+
+        expect(infoSpy).toHaveBeenCalledWith(
+          `Cache restored from key: setup-python-${process.env['RUNNER_OS']}-${pythonKey}${packageManager}-${fileHash}`
+        );
+      }
+    );
+
+    it.each([
+      ['pip', '3.8.12', 'requirements-linux.txt', 'requirements-linux.txt'],
+      ['pip', '3.8.12', 'requirements.txt', 'requirements.txt'],
+      ['pipenv', '3.9.12', 'requirements.txt', 'requirements.txt']
+    ])(
+      'Should throw an error because dependency file is not found',
+      async (
+        packageManager,
+        pythonVersion,
+        dependencyFile,
+        cacheDependencyPath
+      ) => {
+        const cacheDistributor = await getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        );
+        await expect(cacheDistributor.restoreCache()).rejects.toThrowError(
+          `No file in ${process.cwd()} matched to [${cacheDependencyPath
+            .split('\n')
+            .join(',')}], make sure you have checked out the target repository`
+        );
+      }
+    );
+  });
+
+  describe('Dependencies changed', () => {
+    it.each([
+      ['pip', '3.8.12', undefined, pipFileLockHash],
+      ['pip', '3.8.12', '**/requirements-linux.txt', pipFileLockHash],
+      [
+        'pip',
+        '3.8.12',
+        '__tests__/data/requirements-linux.txt',
+        pipFileLockHash
+      ],
+      ['pip', '3.8.12', '__tests__/data/requirements.txt', pipFileLockHash],
+      ['pipenv', '3.9.1', undefined, requirementsHash],
+      ['pipenv', '3.9.12', '__tests__/data/requirements.txt', requirementsHash]
+    ])(
+      'restored dependencies for %s by primaryKey',
+      async (packageManager, pythonVersion, dependencyFile, fileHash) => {
+        restoreCacheSpy.mockImplementation(
+          (cachePaths: string[], primaryKey: string, restoreKey?: string) => {
+            return primaryKey !== fileHash && restoreKey ? pipFileLockHash : '';
+          }
+        );
+        const cacheDistributor = await getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        );
+        await cacheDistributor.restoreCache();
+        let result = '';
+        if (packageManager !== 'pipenv') {
+          result = `Cache restored from key: ${fileHash}`;
+        } else {
+          result = 'pipenv cache is not found';
+        }
+
+        expect(infoSpy).toHaveBeenCalledWith(result);
+      }
+    );
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+  });
+});

__tests__/cache-save.test.ts

@@ -0,0 +1,178 @@
+import * as core from '@actions/core';
+import * as cache from '@actions/cache';
+import * as exec from '@actions/exec';
+import {run} from '../src/cache-save';
+import {State} from '../src/cache-distributions/cache-distributor';
+
+describe('run', () => {
+  const pipFileLockHash =
+    '67d817abcde9c72da0ed5b8f235647cb14638b9ff9d742b42e4406d2eb16fe3c';
+  const requirementsHash =
+    'd8110e0006d7fb5ee76365d565eef9d37df1d11598b912d3eb66d398d57a1121';
+  const requirementsLinuxHash =
+    '2d0ff7f46b0e120e3d3294db65768b474934242637b9899b873e6283dfd16d7c';
+
+  // core spy
+  let infoSpy: jest.SpyInstance;
+  let warningSpy: jest.SpyInstance;
+  let debugSpy: jest.SpyInstance;
+  let saveSatetSpy: jest.SpyInstance;
+  let getStateSpy: jest.SpyInstance;
+  let getInputSpy: jest.SpyInstance;
+  let setFailedSpy: jest.SpyInstance;
+
+  // cache spy
+  let saveCacheSpy: jest.SpyInstance;
+
+  // exec spy
+  let getExecOutputSpy: jest.SpyInstance;
+
+  let inputs = {} as any;
+
+  beforeEach(() => {
+    process.env['RUNNER_OS'] = process.env['RUNNER_OS'] ?? 'linux';
+
+    infoSpy = jest.spyOn(core, 'info');
+    infoSpy.mockImplementation(input => undefined);
+
+    warningSpy = jest.spyOn(core, 'warning');
+    warningSpy.mockImplementation(input => undefined);
+
+    debugSpy = jest.spyOn(core, 'debug');
+    debugSpy.mockImplementation(input => undefined);
+
+    saveSatetSpy = jest.spyOn(core, 'saveState');
+    saveSatetSpy.mockImplementation(input => undefined);
+
+    getStateSpy = jest.spyOn(core, 'getState');
+    getStateSpy.mockImplementation(input => {
+      if (input === State.CACHE_PATHS) {
+        return JSON.stringify([__dirname]);
+      }
+      return requirementsHash;
+    });
+
+    setFailedSpy = jest.spyOn(core, 'setFailed');
+
+    getInputSpy = jest.spyOn(core, 'getInput');
+    getInputSpy.mockImplementation(input => inputs[input]);
+
+    getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+    getExecOutputSpy.mockImplementation((input: string) => {
+      if (input.includes('pip')) {
+        return {stdout: 'pip', stderr: '', exitCode: 0};
+      }
+
+      return {stdout: '', stderr: 'Error occured', exitCode: 2};
+    });
+
+    saveCacheSpy = jest.spyOn(cache, 'saveCache');
+    saveCacheSpy.mockImplementation(() => undefined);
+  });
+
+  describe('Package manager validation', () => {
+    it('Package manager is not provided, skip caching', async () => {
+      inputs['cache'] = '';
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(infoSpy).not.toHaveBeenCalled();
+      expect(saveCacheSpy).not.toHaveBeenCalled();
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('Validate unchanged cache is not saved', () => {
+    it('should not save cache for pip', async () => {
+      inputs['cache'] = 'pip';
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(debugSpy).toHaveBeenCalledWith(
+        `paths for caching are ${__dirname}`
+      );
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${requirementsHash}, not saving cache.`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('should not save cache for pipenv', async () => {
+      inputs['cache'] = 'pipenv';
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(debugSpy).toHaveBeenCalledWith(
+        `paths for caching are ${__dirname}`
+      );
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${requirementsHash}, not saving cache.`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('action saves the cache', () => {
+    it('saves cache from pip', async () => {
+      inputs['cache'] = 'pip';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.CACHE_MATCHED_KEY) {
+          return requirementsHash;
+        } else if (name === State.CACHE_PATHS) {
+          return JSON.stringify([__dirname]);
+        } else {
+          return pipFileLockHash;
+        }
+      });
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${requirementsHash}, not saving cache.`
+      );
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${pipFileLockHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves cache from pipenv', async () => {
+      inputs['cache'] = 'pipenv';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.CACHE_MATCHED_KEY) {
+          return pipFileLockHash;
+        } else if (name === State.CACHE_PATHS) {
+          return JSON.stringify([__dirname]);
+        } else {
+          return requirementsHash;
+        }
+      });
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${pipFileLockHash}, not saving cache.`
+      );
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${requirementsHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    inputs = {};
+  });
+});

__tests__/data/Pipfile.lock

@@ -0,0 +1,276 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "408f110354c997d8df1e17841d5335ae690f5b25f8c78040d62257f9535c6005"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "3.7"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "altgraph": {
+            "hashes": [
+                "sha256:743628f2ac6a7c26f5d9223c91ed8ecbba535f506f4b6f558885a8a56a105857",
+                "sha256:ebf2269361b47d97b3b88e696439f6e4cbc607c17c51feb1754f90fb79839158"
+            ],
+            "version": "==0.17.2"
+        },
+        "certifi": {
+            "hashes": [
+                "sha256:5930595817496dd21bb8dc35dad090f1c2cd0adfaf21204bf6732ca5d8ee34d3",
+                "sha256:8fc0819f1f30ba15bdb34cceffb9ef04d99f420f68eb75d901e9560b8749fc41"
+            ],
+            "index": "pypi",
+            "version": "==2020.6.20"
+        },
+        "chardet": {
+            "hashes": [
+                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
+                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
+            ],
+            "index": "pypi",
+            "version": "==3.0.4"
+        },
+        "docutils": {
+            "hashes": [
+                "sha256:0c5b78adfbf7762415433f5515cd5c9e762339e23369dbe8000d84a4bf4ab3af",
+                "sha256:c2de3a60e9e7d07be26b7f2b00ca0309c207e06c100f9cc2a94931fc75a478fc"
+            ],
+            "index": "pypi",
+            "version": "==0.16"
+        },
+        "future": {
+            "hashes": [
+                "sha256:b1bead90b70cf6ec3f0710ae53a525360fa360d306a86583adc6bf83a4db537d"
+            ],
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'",
+            "version": "==0.18.2"
+        },
+        "idna": {
+            "hashes": [
+                "sha256:7588d1c14ae4c77d74036e8c22ff447b26d0fde8f007354fd48a7814db15b7cb",
+                "sha256:a068a21ceac8a4d63dbfd964670474107f541babbd2250d61922f029858365fa"
+            ],
+            "index": "pypi",
+            "version": "==2.9"
+        },
+        "itsdangerous": {
+            "hashes": [
+                "sha256:321b033d07f2a4136d3ec762eac9f16a10ccd60f53c0c91af90217ace7ba1f19",
+                "sha256:b12271b2047cb23eeb98c8b5622e2e5c5e9abd9784a153e9d8ef9cb4dd09d749"
+            ],
+            "index": "pypi",
+            "version": "==1.1.0"
+        },
+        "kivy": {
+            "hashes": [
+                "sha256:090d3ded9835a17477cd93fbdaf0a7c42ff2218981cf198ded5ad8795bc74391",
+                "sha256:11e85eaf6efbfa2362a3334ffdad179a1b0ca8d255cca79eaa6a2765560d4982",
+                "sha256:1a1ff32f8a95f1e175198cbab81fcd2596783b180d4eafe63e87d171aa7fdb5e",
+                "sha256:1d28b198a64c30db8d94a0488e85f3037af60d514ab0d7ad5ab45add3ab77090",
+                "sha256:4a5480cbf837d3780c77a4f61b32b56d22ae9f03845e7a89dd3eaef1ae5fd037",
+                "sha256:4d0e596f74271e901b551f77661dde238df4765484fce9f5d1c72e8022984e84",
+                "sha256:5c3d0f2749522d62e9cce09cd54b2d823bf1b6b644ff1f627be49de6f3e3cba0",
+                "sha256:815a5c0b3b72fcd81ca7b2aa0744087163ed03e4cf9ab4e7c9733cea99fc1571",
+                "sha256:8819a27a09871af451760cb69486ced52e830c8a0a37480f22ef5e692f12c05b",
+                "sha256:a687602d90c4629dd036f577ca39acb76ba581370f9d915f3cab99be818ba8ad",
+                "sha256:b7ef6aad43a86d8df3fb865db864e354f2155a748019f8517f69f65c1a29cb64",
+                "sha256:b85ccf165050cbf2ee8447671eebbc222b369b40f0e0038dd9547d49a5e37373",
+                "sha256:c36652caa7f6c327dee834cfc699d5962d346b7a53e54bd81abc17c314226d89",
+                "sha256:ece170514db3f49844a41e4c910ad9ce9bc46da6f47a49158e11266bdcc6e479",
+                "sha256:f3bea6e4a21991827885d04127fc6d09a0e974ecfa12da7bf5faae93562ea102",
+                "sha256:f835462dd9aa491272552ef079b948a088598e2e95d68bb1d885d2c3f3d4e2c3"
+            ],
+            "index": "pypi",
+            "version": "==1.11.1"
+        },
+        "kivy-deps-angle": {
+            "hashes": [
+                "sha256:50605fdd4c9fdbe9f717069734a598a9aba0afe5d3f0412afbe2ecff0326e92d",
+                "sha256:64ac7f33c000585dc30194e604aed925972c6b7c3848b5c3b073ae916fb0b55c",
+                "sha256:99c40d53582a958748e251dfbd61aa67fb85963e27529ca08a21f2f5eeed04e1",
+                "sha256:a2cea09e8a5e899629466403fbd540459f1cdef8d08c6c479b6607b95309be02",
+                "sha256:b167e19b3eea55a9a8c606a607bb909ec1bedda88deee40347c780b310155a79",
+                "sha256:b9d07976b0bf6bac724a42aa8ed5a8c7caa95609046db30c8f15bb731f8e4d36",
+                "sha256:bb4d53f15a093214adbbe205c108ede5cc0f6af6eff104c1b8c468ddaaf6400a",
+                "sha256:d0e7b7b9eb9669837a5d70808a7ea45f2b61961b56f9f69a233bad6bd36ce260"
+            ],
+            "index": "pypi",
+            "version": "==0.3.0"
+        },
+        "kivy-deps.glew": {
+            "hashes": [
+                "sha256:09f72ee5ef33ff273332e2a229dc97d650d29818a0189339421949e4e0f63d93",
+                "sha256:1e28e40017af9d081fc0fc95b4fadaf31d15e9f63478dcee1c4257d67079894e",
+                "sha256:45aa7f0e8d9bcf5fc1810c9c38bc20edf7dee61df81ecf62102e0f84153f924a",
+                "sha256:6bb435620c3187d2c61054adb9ec277ed487256b457a0a7b1491bc0cb7247e18",
+                "sha256:92e72fa2c425887987d1aa861c99537033dc20d68ae1c54864871f0401682586",
+                "sha256:ab81783a82bef88a8d2bcf8a93bc21df6b8b0db6ee551eb802727d18f9074b17",
+                "sha256:c843104690c0c8f3a58105c53c57f31506f6f90562c18de00bd19317cc1045a7",
+                "sha256:cf351aad171796f8051af8e49ec430a9aa128d8557d8643e73f2bb1e5f9c2dab",
+                "sha256:ee8ab67abb2c98d84feede657cae472e7723e529af07394244bdd33caafb1a38",
+                "sha256:ef1116d99bd9cc737cb8c0e13e676955c17d6e4d6d1af5cfccef089a430071bb"
+            ],
+            "index": "pypi",
+            "version": "==0.1.12"
+        },
+        "kivy-deps.gstreamer": {
+            "hashes": [
+                "sha256:0d9598d2d31c0e780adf4b767fa3a691123621fd0ffef94b83cf82c2da84341b",
+                "sha256:309eca64dee5939f16f8465e5cbb08bdde7c90ded1af6a00690c7e928326af79",
+                "sha256:3d53d2c84c0a997c4cac6c239b1e0a6486e533836321003dc365ec42b97a664b",
+                "sha256:4d996377111e854b3dea90846f9b2f98766a44529fd8b72125e18c552381d928",
+                "sha256:4f2ddd61d185310258d338ae80a646df7822efdd7d67e57f49dc7b87555c5d7e",
+                "sha256:6fa9f76afe600baa221abee31ce7dc63e653d0affe0f6c558bfc4f35af96396f",
+                "sha256:739cd331b9f33a822d700273674a79a3157054e9358a01a0d553f094a5f4a8c9",
+                "sha256:c29cfc63fe70a58dad889e631f1ba4711c9ea80103f2b2b8d670a97f093076c8",
+                "sha256:c4709765e2b17c6c96b46a92207b0457def147544d825654077603eaf0d424de"
+            ],
+            "index": "pypi",
+            "version": "==0.1.17"
+        },
+        "kivy-deps.sdl2": {
+            "hashes": [
+                "sha256:053f26e8c05d5545bdbc7eeb8c450b8e4410ee355792e9345af536110fe247e2",
+                "sha256:1b987bdd4fbbcb31baf0d7fc9584ad99912179b8968311bb7e30fbeb14e98e0d",
+                "sha256:228128cdd8112dc7505ac43027a770476e9ef282e0b84ca68037133cd025960b",
+                "sha256:2c2fd5a12a7a9afe3bb962b273561099a180edae91bb9c8f8386b72253fcae4a",
+                "sha256:5ce23f1a3286d6288751a12b0eaefd02f947ea101bb807e9781b964e496fc3f3",
+                "sha256:7928746eaed51944c10d1bb36fcefebe3d1aff1b97ba32359c2c97ba74707e1b",
+                "sha256:9270fa8ed5130074b167a7a3a9c85efc3cfe3c04584ab084cb6ae9e4edfa8168",
+                "sha256:92ed97d3247bc8ce98f336cbc940bb889310199326e9ccf251c49ae7e4b80de8",
+                "sha256:96e1fa89fd8b5351f2d3c26bbffd50df8d554b03fba4025ecc941d773d241698",
+                "sha256:c3ace0ddde0e59cdcaf260eda1daa0c05ca9bf8cd0c4ea404539de25a5dcaec7"
+            ],
+            "index": "pypi",
+            "version": "==0.1.22"
+        },
+        "kivy-garden": {
+            "hashes": [
+                "sha256:9b7d9de5efacbcd0c4b3dd873b30622a86093c9965aa47b523c7a32f3eb34610",
+                "sha256:c256f42788421273a08fbb0a228f0fb0e80dd86b629fb8c0920507f645be6c72"
+            ],
+            "index": "pypi",
+            "version": "==0.1.4"
+        },
+        "packaging": {
+            "hashes": [
+                "sha256:7dc96269f53a4ccec5c0670940a4281106dd0bb343f47b7471f779df49c2fbe7",
+                "sha256:c86254f9220d55e31cc94d69bade760f0847da8000def4dfe1c6b872fd14ff14"
+            ],
+            "index": "pypi",
+            "version": "==21.0"
+        },
+        "pdf2image": {
+            "hashes": [
+                "sha256:a0d9906f5507192210a8d5d7ead63145e9dec4bccc4564b1fb644e923913c31c"
+            ],
+            "index": "pypi",
+            "version": "==1.12.1"
+        },
+        "pefile": {
+            "hashes": [
+                "sha256:344a49e40a94e10849f0fe34dddc80f773a12b40675bf2f7be4b8be578bdd94a"
+            ],
+            "markers": "python_full_version >= '3.6.0'",
+            "version": "==2021.9.3"
+        },
+        "pillow": {
+            "hashes": [
+                "sha256:0295442429645fa16d05bd567ef5cff178482439c9aad0411d3f0ce9b88b3a6f",
+                "sha256:06aba4169e78c439d528fdeb34762c3b61a70813527a2c57f0540541e9f433a8",
+                "sha256:09d7f9e64289cb40c2c8d7ad674b2ed6105f55dc3b09aa8e4918e20a0311e7ad",
+                "sha256:0a80dd307a5d8440b0a08bd7b81617e04d870e40a3e46a32d9c246e54705e86f",
+                "sha256:1ca594126d3c4def54babee699c055a913efb01e106c309fa6b04405d474d5ae",
+                "sha256:25930fadde8019f374400f7986e8404c8b781ce519da27792cbe46eabec00c4d",
+                "sha256:431b15cffbf949e89df2f7b48528be18b78bfa5177cb3036284a5508159492b5",
+                "sha256:52125833b070791fcb5710fabc640fc1df07d087fc0c0f02d3661f76c23c5b8b",
+                "sha256:5e51ee2b8114def244384eda1c82b10e307ad9778dac5c83fb0943775a653cd8",
+                "sha256:612cfda94e9c8346f239bf1a4b082fdd5c8143cf82d685ba2dba76e7adeeb233",
+                "sha256:6d7741e65835716ceea0fd13a7d0192961212fd59e741a46bbed7a473c634ed6",
+                "sha256:6edb5446f44d901e8683ffb25ebdfc26988ee813da3bf91e12252b57ac163727",
+                "sha256:725aa6cfc66ce2857d585f06e9519a1cc0ef6d13f186ff3447ab6dff0a09bc7f",
+                "sha256:8dad18b69f710bf3a001d2bf3afab7c432785d94fcf819c16b5207b1cfd17d38",
+                "sha256:94cf49723928eb6070a892cb39d6c156f7b5a2db4e8971cb958f7b6b104fb4c4",
+                "sha256:97f9e7953a77d5a70f49b9a48da7776dc51e9b738151b22dacf101641594a626",
+                "sha256:9ad7f865eebde135d526bb3163d0b23ffff365cf87e767c649550964ad72785d",
+                "sha256:9c87ef410a58dd54b92424ffd7e28fd2ec65d2f7fc02b76f5e9b2067e355ebf6",
+                "sha256:a060cf8aa332052df2158e5a119303965be92c3da6f2d93b6878f0ebca80b2f6",
+                "sha256:c79f9c5fb846285f943aafeafda3358992d64f0ef58566e23484132ecd8d7d63",
+                "sha256:c92302a33138409e8f1ad16731568c55c9053eee71bb05b6b744067e1b62380f",
+                "sha256:d08b23fdb388c0715990cbc06866db554e1822c4bdcf6d4166cf30ac82df8c41",
+                "sha256:d350f0f2c2421e65fbc62690f26b59b0bcda1b614beb318c81e38647e0f673a1",
+                "sha256:e901964262a56d9ea3c2693df68bc9860b8bdda2b04768821e4c44ae797de117",
+                "sha256:ec29604081f10f16a7aea809ad42e27764188fc258b02259a03a8ff7ded3808d",
+                "sha256:edf31f1150778abd4322444c393ab9c7bd2af271dd4dafb4208fb613b1f3cdc9",
+                "sha256:f7e30c27477dffc3e85c2463b3e649f751789e0f6c8456099eea7ddd53be4a8a",
+                "sha256:ffe538682dc19cc542ae7c3e504fdf54ca7f86fb8a135e59dd6bc8627eae6cce"
+            ],
+            "index": "pypi",
+            "version": "==7.2"
+        },
+        "pygments": {
+            "hashes": [
+                "sha256:647344a061c249a3b74e230c739f434d7ea4d8b1d5f3721bc0f3558049b38f44",
+                "sha256:ff7a40b4860b727ab48fad6360eb351cc1b33cbf9b15a0f689ca5353e9463324"
+            ],
+            "index": "pypi",
+            "version": "==2.6.1"
+        },
+        "pyinstaller": {
+            "hashes": [
+                "sha256:3730fa80d088f8bb7084d32480eb87cbb4ddb64123363763cf8f2a1378c1c4b7"
+            ],
+            "index": "pypi",
+            "version": "==3.6"
+        },
+        "pyparsing": {
+            "hashes": [
+                "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1",
+                "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"
+            ],
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'",
+            "version": "==2.4.7"
+        },
+        "pywin32-ctypes": {
+            "hashes": [
+                "sha256:24ffc3b341d457d48e8922352130cf2644024a4ff09762a2261fd34c36ee5942",
+                "sha256:9dc2d991b3479cc2df15930958b674a48a227d5361d413827a4cfd0b5876fc98"
+            ],
+            "version": "==0.2.0"
+        },
+        "requests": {
+            "hashes": [
+                "sha256:b3559a131db72c33ee969480840fff4bb6dd111de7dd27c8ee1f820f4f00231b",
+                "sha256:fe75cc94a9443b9246fc7049224f75604b113c36acb93f87b80ed42c44cbb898"
+            ],
+            "index": "pypi",
+            "version": "==2.24.0"
+        },
+        "urllib3": {
+            "hashes": [
+                "sha256:3018294ebefce6572a474f0604c2021e33b3fd8006ecd11d62107a5d2a963527",
+                "sha256:88206b0eb87e6d677d424843ac5209e3fb9d0190d0ee169599165ec25e9d9115"
+            ],
+            "index": "pypi",
+            "version": "==1.25.9"
+        },
+        "xlrd": {
+            "hashes": [
+                "sha256:546eb36cee8db40c3eaa46c351e67ffee6eeb5fa2650b71bc4c758a29a1b29b2",
+                "sha256:e551fb498759fa3a5384a94ccd4c3c02eb7c00ea424426e212ac0c57be9dfbde"
+            ],
+            "index": "pypi",
+            "version": "==1.2.0"
+        }
+    },
+    "develop": {}
+}

__tests__/data/requirements-linux.txt

@@ -0,0 +1,12 @@
+certifi==2020.6.20
+chardet==3.0.4
+docutils==0.16
+idna==2.10
+Kivy==2.0.0rc3
+Kivy-Garden==0.1.4
+packaging==20.7
+pdf2image==1.12.1
+Pygments==2.6.1
+requests==2.24.0
+urllib3==1.25.10
+xlrd==1.2.0

__tests__/data/requirements.txt

@@ -0,0 +1,47 @@
+altgraph==0.17.2
+
+certifi==2020.6.20
+
+chardet==3.0.4
+
+docutils==0.16
+
+future==0.18.2; python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'
+
+idna==2.9
+
+itsdangerous==1.1.0
+
+kivy-deps-angle==0.3.0
+
+kivy-deps.glew==0.1.12
+
+kivy-deps.gstreamer==0.1.17
+
+kivy-deps.sdl2==0.1.22
+
+kivy-garden==0.1.4
+
+kivy==1.11.1
+
+packaging==21.0
+
+pdf2image==1.12.1
+
+pefile==2021.9.3; python_full_version >= '3.6.0'
+
+pillow==7.2
+
+pygments==2.6.1
+
+pyinstaller==3.6
+
+pyparsing==2.4.7; python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'
+
+pywin32-ctypes==0.2.0
+
+requests==2.24.0
+
+urllib3==1.25.9
+
+xlrd==1.2.0

action.yml

@@ -6,17 +6,24 @@ inputs:
   python-version:
     description: "Version range or exact version of a Python version to use, using SemVer's version range syntax."
     default: '3.x'
+  cache:
+    description: 'Used to specify a package manager for caching in the default directory. Supported values: pip, pipenv.'
+    required: false
   architecture:
     description: 'The target architecture (x86, x64) of the Python interpreter.'
   token:
     description: Used to pull python distributions from actions/python-versions. Since there's a default, this is typically not supplied by the user.
     default: ${{ github.token }}
+  cache-dependency-path:
+    description: 'Used to specify the path to dependency files. Supports wildcards or a list of file names for caching multiple dependencies.'
 outputs:
   python-version:
     description: "The installed python version. Useful when given a version range as input."
 runs:
   using: 'node12'
-  main: 'dist/index.js'
+  main: 'dist/setup/index.js'
+  post: 'dist/cache-save/index.js'
+  post-if: success()
 branding:
   icon: 'code'
   color: 'yellow'

package-lock.json

@@ -4,19 +4,68 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@actions/cache": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/@actions/cache/-/cache-1.0.7.tgz",
+      "integrity": "sha512-MY69kxuubqUFq84pFlu8m6Poxl5sR/xyhpC4JEvno7Yg9ASYdGizEmKgt0m8ovewpYKf15UAOcSC0hzS+DuosA==",
+      "requires": {
+        "@actions/core": "^1.2.6",
+        "@actions/exec": "^1.0.1",
+        "@actions/glob": "^0.1.0",
+        "@actions/http-client": "^1.0.9",
+        "@actions/io": "^1.0.1",
+        "@azure/ms-rest-js": "^2.0.7",
+        "@azure/storage-blob": "^12.1.2",
+        "semver": "^6.1.0",
+        "uuid": "^3.3.3"
+      },
+      "dependencies": {
+        "@actions/glob": {
+          "version": "0.1.2",
+          "resolved": "https://registry.npmjs.org/@actions/glob/-/glob-0.1.2.tgz",
+          "integrity": "sha512-SclLR7Ia5sEqjkJTPs7Sd86maMDw43p769YxBOxvPvEWuPEhpAnBsQfENOpXjFYMmhCqd127bmf+YdvJqVqR4A==",
+          "requires": {
+            "@actions/core": "^1.2.6",
+            "minimatch": "^3.0.4"
+          }
+        },
+        "@actions/http-client": {
+          "version": "1.0.11",
+          "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.11.tgz",
+          "integrity": "sha512-VRYHGQV1rqnROJqdMvGUbY/Kn8vriQe/F9HR2AlYHzmKuM/p3kjNuXhmdBfcVgsvRWTz5C5XW5xvndZrVBuAYg==",
+          "requires": {
+            "tunnel": "0.0.6"
+          }
+        },
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+        }
+      }
+    },
     "@actions/core": {
       "version": "1.2.6",
       "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.6.tgz",
       "integrity": "sha512-ZQYitnqiyBc3D+k7LsgSBmMDVkOVidaagDG7j3fOym77jNunWRuYx7VSHa9GNfFZh+zh61xsCjRj4JxMZlDqTA=="
     },
     "@actions/exec": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-1.0.4.tgz",
-      "integrity": "sha512-4DPChWow9yc9W3WqEbUj8Nr86xkpyE29ZzWjXucHItclLbEW6jr80Zx4nqv18QL6KK65+cifiQZXvnqgTV6oHw==",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-1.1.0.tgz",
+      "integrity": "sha512-LImpN9AY0J1R1mEYJjVJfSZWU4zYOlEcwSTgPve1rFQqK5AwrEs6uWW5Rv70gbDIQIAUwI86z6B+9mPK4w9Sbg==",
       "requires": {
         "@actions/io": "^1.0.1"
       }
     },
+    "@actions/glob": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/@actions/glob/-/glob-0.2.0.tgz",
+      "integrity": "sha512-mqE2a7I66kxcvsdwxs/filQwZsq25IfktMaviGfDB51v6Q3bvxnV7mFsZnvYtLhqGZbPxwBnH8AD3UYaOWb//w==",
+      "requires": {
+        "@actions/core": "^1.2.6",
+        "minimatch": "^3.0.4"
+      }
+    },
     "@actions/http-client": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.8.tgz",
@@ -50,6 +99,216 @@
         }
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       "version": "2.1.33",
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.33.tgz",
       "integrity": "sha512-plLElXp7pRDd0bNZHw+nMd52vRYjLwQjygaNg7ddJ2uJtTlmnTCjWuPKxVu6//AdaRuME84SvLW91sIkBqGT0g==",
-      "dev": true,
       "requires": {
         "mime-db": "1.50.0"
       }
@@ -7820,7 +8114,6 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-      "dev": true,
       "requires": {
         "brace-expansion": "^1.1.7"
       }
@@ -7843,6 +8136,35 @@
       "integrity": "sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=",
       "dev": true
     },
+    "node-fetch": {
+      "version": "2.6.5",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.5.tgz",
+      "integrity": "sha512-mmlIVHJEu5rnIxgEgez6b9GgWXbkZj5YZ7fx+2r94a2E+Uirsp6HsPTPlomfdHtpt/B0cdKviwkoaM6pyvUOpQ==",
+      "requires": {
+        "whatwg-url": "^5.0.0"
+      },
+      "dependencies": {
+        "tr46": {
+          "version": "0.0.3",
+          "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+          "integrity": "sha1-gYT9NH2snNwYWZLzpmIuFLnZq2o="
+        },
+        "webidl-conversions": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+          "integrity": "sha1-JFNCdeKnvGvnvIZhHMFq4KVlSHE="
+        },
+        "whatwg-url": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+          "integrity": "sha1-lmRU6HZUYuN2RNNib2dCzotwll0=",
+          "requires": {
+            "tr46": "~0.0.3",
+            "webidl-conversions": "^3.0.0"
+          }
+        }
+      }
+    },
     "node-int64": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/node-int64/-/node-int64-0.4.0.tgz",
@@ -8030,6 +8352,11 @@
         }
       }
     },
+    "process": {
+      "version": "0.11.10",
+      "resolved": "https://registry.npmjs.org/process/-/process-0.11.10.tgz",
+      "integrity": "sha1-czIwDoQBYb2j5podHZGn1LwW8YI="
+    },
     "prompts": {
       "version": "2.4.2",
       "resolved": "https://registry.npmjs.org/prompts/-/prompts-2.4.2.tgz",
@@ -8043,14 +8370,12 @@
     "psl": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/psl/-/psl-1.8.0.tgz",
-      "integrity": "sha512-RIdOzyoavK+hA18OGGWDqUTsCLhtA7IcZ/6NCs4fFJaHBDab+pDDmDIByWFRQJq2Cd7r1OoQxBGKOaztq+hjIQ==",
-      "dev": true
+      "integrity": "sha512-RIdOzyoavK+hA18OGGWDqUTsCLhtA7IcZ/6NCs4fFJaHBDab+pDDmDIByWFRQJq2Cd7r1OoQxBGKOaztq+hjIQ=="
     },
     "punycode": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
-      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
-      "dev": true
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
     },
     "react-is": {
       "version": "17.0.2",
@@ -8110,6 +8435,11 @@
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
       "dev": true
     },
+    "sax": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
+      "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
+    },
     "saxes": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/saxes/-/saxes-5.0.1.tgz",
@@ -8315,7 +8645,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-4.0.0.tgz",
       "integrity": "sha512-tHdtEpQCMrc1YLrMaqXXcj6AxhYi/xgit6mZu1+EDWUn+qhUf8wMQoFIy9NXuq23zAwtcB0t/MjACGR18pcRbg==",
-      "dev": true,
       "requires": {
         "psl": "^1.1.33",
         "punycode": "^2.1.1",
@@ -8419,6 +8748,11 @@
         }
       }
     },
+    "tslib": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg=="
+    },
     "tunnel": {
       "version": "0.0.6",
       "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.6.tgz",
@@ -8463,8 +8797,7 @@
     "universalify": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
-      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
-      "dev": true
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="
     },
     "uuid": {
       "version": "3.4.0",
@@ -8605,6 +8938,20 @@
       "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==",
       "dev": true
     },
+    "xml2js": {
+      "version": "0.4.23",
+      "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.23.tgz",
+      "integrity": "sha512-ySPiMjM0+pLDftHgXY4By0uswI3SPKLDw/i3UXbnO8M/p28zqexCUoPmQFrYD+/1BzhGJSs2i1ERWKJAtiLrug==",
+      "requires": {
+        "sax": ">=0.6.0",
+        "xmlbuilder": "~11.0.0"
+      }
+    },
+    "xmlbuilder": {
+      "version": "11.0.1",
+      "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-11.0.1.tgz",
+      "integrity": "sha512-fDlsI/kFEx7gLvbecc0/ohLG50fugQp8ryHzMTuW9vSa1GJ0XYWKnhsUx7oie3G98+r56aTQIUB4kht42R3JvA=="
+    },
     "xmlchars": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-2.2.0.tgz",

package.json

@@ -6,9 +6,9 @@
   "main": "dist/index.js",
   "scripts": {
     "build": "tsc",
-    "format": "prettier --write **/*.ts",
-    "format-check": "prettier --check **/*.ts",
-    "release": "ncc build src/setup-python.ts && git add -f dist/",
+    "format": "prettier --write \"{,!(node_modules)/**/}*.ts\"",
+    "format-check": "prettier --check \"{,!(node_modules)/**/}*.ts\"",
+    "release": "ncc build -o dist/setup src/setup-python.ts && ncc build -o dist/cache-save src/cache-save.ts && git add -f dist/",
     "test": "jest"
   },
   "repository": {
@@ -23,14 +23,17 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
+    "@actions/cache": "^1.0.7",
     "@actions/core": "^1.2.3",
+    "@actions/exec": "^1.1.0",
+    "@actions/glob": "^0.2.0",
     "@actions/io": "^1.0.2",
     "@actions/tool-cache": "^1.5.5",
     "semver": "^7.1.3"
   },
   "devDependencies": {
     "@types/jest": "^27.0.2",
-    "@types/node": "^12.12.31",
+    "@types/node": "^12.20.36",
     "@types/semver": "^7.1.0",
     "@zeit/ncc": "^0.22.0",
     "husky": "^7.0.2",

src/cache-distributions/cache-distributor.ts

@@ -0,0 +1,53 @@
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
+
+export enum State {
+  STATE_CACHE_PRIMARY_KEY = 'cache-primary-key',
+  CACHE_MATCHED_KEY = 'cache-matched-key',
+  CACHE_PATHS = 'cache-paths'
+}
+
+abstract class CacheDistributor {
+  protected CACHE_KEY_PREFIX = 'setup-python';
+  constructor(
+    protected packageManager: string,
+    protected cacheDependencyPath: string
+  ) {}
+
+  protected abstract getCacheGlobalDirectories(): Promise<string[]>;
+  protected abstract computeKeys(): Promise<{
+    primaryKey: string;
+    restoreKey: string[] | undefined;
+  }>;
+
+  public async restoreCache() {
+    const {primaryKey, restoreKey} = await this.computeKeys();
+    if (primaryKey.endsWith('-')) {
+      throw new Error(
+        `No file in ${process.cwd()} matched to [${this.cacheDependencyPath
+          .split('\n')
+          .join(',')}], make sure you have checked out the target repository`
+      );
+    }
+
+    const cachePath = await this.getCacheGlobalDirectories();
+
+    core.saveState(State.CACHE_PATHS, cachePath);
+    core.saveState(State.STATE_CACHE_PRIMARY_KEY, primaryKey);
+
+    const matchedKey = await cache.restoreCache(
+      cachePath,
+      primaryKey,
+      restoreKey
+    );
+
+    if (matchedKey) {
+      core.saveState(State.CACHE_MATCHED_KEY, matchedKey);
+      core.info(`Cache restored from key: ${matchedKey}`);
+    } else {
+      core.info(`${this.packageManager} cache is not found`);
+    }
+  }
+}
+
+export default CacheDistributor;

src/cache-distributions/cache-factory.ts

@@ -0,0 +1,22 @@
+import PipCache from './pip-cache';
+import PipenvCache from './pipenv-cache';
+
+export enum PackageManagers {
+  Pip = 'pip',
+  Pipenv = 'pipenv'
+}
+
+export function getCacheDistributor(
+  packageManager: string,
+  pythonVersion: string,
+  cacheDependencyPath: string | undefined
+) {
+  switch (packageManager) {
+    case PackageManagers.Pip:
+      return new PipCache(cacheDependencyPath);
+    case PackageManagers.Pipenv:
+      return new PipenvCache(pythonVersion, cacheDependencyPath);
+    default:
+      throw new Error(`Caching for '${packageManager}' is not supported`);
+  }
+}

src/cache-distributions/pip-cache.ts

@@ -0,0 +1,49 @@
+import * as glob from '@actions/glob';
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+
+import * as path from 'path';
+import os from 'os';
+
+import CacheDistributor from './cache-distributor';
+
+class PipCache extends CacheDistributor {
+  constructor(cacheDependencyPath: string = '**/requirements.txt') {
+    super('pip', cacheDependencyPath);
+  }
+
+  protected async getCacheGlobalDirectories() {
+    const {stdout, stderr, exitCode} = await exec.getExecOutput(
+      'pip cache dir'
+    );
+
+    if (exitCode && stderr) {
+      throw new Error(
+        `Could not get cache folder path for pip package manager`
+      );
+    }
+
+    let resolvedPath = stdout.trim();
+
+    if (resolvedPath.includes('~')) {
+      resolvedPath = path.join(os.homedir(), resolvedPath.slice(1));
+    }
+
+    core.debug(`global cache directory path is ${resolvedPath}`);
+
+    return [resolvedPath];
+  }
+
+  protected async computeKeys() {
+    const hash = await glob.hashFiles(this.cacheDependencyPath);
+    const primaryKey = `${this.CACHE_KEY_PREFIX}-${process.env['RUNNER_OS']}-${this.packageManager}-${hash}`;
+    const restoreKey = `${this.CACHE_KEY_PREFIX}-${process.env['RUNNER_OS']}-${this.packageManager}`;
+
+    return {
+      primaryKey,
+      restoreKey: [restoreKey]
+    };
+  }
+}
+
+export default PipCache;

src/cache-distributions/pipenv-cache.ts

@@ -0,0 +1,44 @@
+import * as glob from '@actions/glob';
+import * as os from 'os';
+import * as path from 'path';
+import * as core from '@actions/core';
+
+import CacheDistributor from './cache-distributor';
+
+class PipenvCache extends CacheDistributor {
+  constructor(
+    private pythonVersion: string,
+    protected patterns: string = '**/Pipfile.lock'
+  ) {
+    super('pipenv', patterns);
+  }
+
+  protected async getCacheGlobalDirectories() {
+    let virtualEnvRelativePath;
+
+    // Default virtualenv directories are hardcoded,
+    // because pipenv is not preinstalled on hosted images and virtualenv is not created:
+    // https://github.com/pypa/pipenv/blob/1daaa0de9a0b00d386c6baeb809d8d4ee6795cfd/pipenv/utils.py#L1990-L2002
+    if (process.platform === 'win32') {
+      virtualEnvRelativePath = '.virtualenvs';
+    } else {
+      virtualEnvRelativePath = '.local/share/virtualenvs';
+    }
+    const resolvedPath = path.join(os.homedir(), virtualEnvRelativePath);
+    core.debug(`global cache directory path is ${resolvedPath}`);
+
+    return [resolvedPath];
+  }
+
+  protected async computeKeys() {
+    const hash = await glob.hashFiles(this.patterns);
+    const primaryKey = `${this.CACHE_KEY_PREFIX}-${process.env['RUNNER_OS']}-python-${this.pythonVersion}-${this.packageManager}-${hash}`;
+    const restoreKey = undefined;
+    return {
+      primaryKey,
+      restoreKey
+    };
+  }
+}
+
+export default PipenvCache;

src/cache-save.ts

@@ -0,0 +1,67 @@
+import * as core from '@actions/core';
+import * as cache from '@actions/cache';
+
+import fs from 'fs';
+import {State} from './cache-distributions/cache-distributor';
+
+export async function run() {
+  try {
+    const cache = core.getInput('cache');
+    if (cache) {
+      await saveCache(cache);
+    }
+  } catch (error) {
+    const err = error as Error;
+    core.setFailed(err.message);
+  }
+}
+
+async function saveCache(packageManager: string) {
+  const cachePaths = JSON.parse(core.getState(State.CACHE_PATHS)) as string[];
+
+  core.debug(`paths for caching are ${cachePaths.join(', ')}`);
+
+  if (!isCacheDirectoryExists(cachePaths)) {
+    throw new Error(
+      `Cache folder path is retrieved for ${packageManager} but doesn't exist on disk: ${cachePaths.join(
+        ', '
+      )}`
+    );
+  }
+
+  const primaryKey = core.getState(State.STATE_CACHE_PRIMARY_KEY);
+  const matchedKey = core.getState(State.CACHE_MATCHED_KEY);
+
+  if (!primaryKey) {
+    core.warning('Error retrieving key from state.');
+    return;
+  } else if (matchedKey === primaryKey) {
+    // no change in target directories
+    core.info(
+      `Cache hit occurred on the primary key ${primaryKey}, not saving cache.`
+    );
+    return;
+  }
+
+  try {
+    await cache.saveCache(cachePaths, primaryKey);
+    core.info(`Cache saved with the key: ${primaryKey}`);
+  } catch (error) {
+    const err = error as Error;
+    if (err.name === cache.ReserveCacheError.name) {
+      core.info(err.message);
+    } else {
+      throw error;
+    }
+  }
+}
+
+function isCacheDirectoryExists(cacheDirectory: string[]) {
+  const result = cacheDirectory.reduce((previousValue, currentValue) => {
+    return previousValue || fs.existsSync(currentValue);
+  }, false);
+
+  return result;
+}
+
+run();

src/install-python.ts

@@ -3,7 +3,7 @@ import * as core from '@actions/core';
 import * as tc from '@actions/tool-cache';
 import * as exec from '@actions/exec';
 import {ExecOptions} from '@actions/exec/lib/interfaces';
-import {IS_WINDOWS, IS_LINUX} from './utils';
+import {IS_WINDOWS, IS_LINUX, isGhes} from './utils';
 
 const TOKEN = core.getInput('token');
 const AUTH = !TOKEN || isGhes() ? undefined : `token ${TOKEN}`;
@@ -71,10 +71,3 @@ export async function installCpythonFromRelease(release: tc.IToolRelease) {
   core.info('Execute installation script');
   await installPython(pythonExtractedFolder);
 }
-
-function isGhes(): boolean {
-  const ghUrl = new URL(
-    process.env['GITHUB_SERVER_URL'] || 'https://github.com'
-  );
-  return ghUrl.hostname.toUpperCase() !== 'GITHUB.COM';
-}

src/setup-python.ts

@@ -3,32 +3,54 @@ import * as finder from './find-python';
 import * as finderPyPy from './find-pypy';
 import * as path from 'path';
 import * as os from 'os';
+import {getCacheDistributor} from './cache-distributions/cache-factory';
+import {isGhes} from './utils';
 
 function isPyPyVersion(versionSpec: string) {
   return versionSpec.startsWith('pypy-');
 }
 
+async function cacheDependencies(cache: string, pythonVersion: string) {
+  if (isGhes()) {
+    throw new Error('Caching is not supported on GHES');
+  }
+  const cacheDependencyPath =
+    core.getInput('cache-dependency-path') || undefined;
+  const cacheDistributor = getCacheDistributor(
+    cache,
+    pythonVersion,
+    cacheDependencyPath
+  );
+  await cacheDistributor.restoreCache();
+}
+
 async function run() {
   try {
-    let version = core.getInput('python-version');
+    const version = core.getInput('python-version');
     if (version) {
+      let pythonVersion: string;
       const arch: string = core.getInput('architecture') || os.arch();
       if (isPyPyVersion(version)) {
         const installed = await finderPyPy.findPyPyVersion(version, arch);
+        pythonVersion = `${installed.resolvedPyPyVersion}-${installed.resolvedPythonVersion}`;
         core.info(
           `Successfully setup PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`
         );
       } else {
         const installed = await finder.findPythonVersion(version, arch);
-        core.info(
-          `Successfully setup ${installed.impl} (${installed.version})`
-        );
+        pythonVersion = installed.version;
+        core.info(`Successfully setup ${installed.impl} (${pythonVersion})`);
+      }
+
+      const cache = core.getInput('cache');
+      if (cache) {
+        await cacheDependencies(cache, pythonVersion);
       }
     }
-    const matchersPath = path.join(__dirname, '..', '.github');
+    const matchersPath = path.join(__dirname, '../..', '.github');
     core.info(`##[add-matcher]${path.join(matchersPath, 'python.json')}`);
   } catch (err) {
-    core.setFailed(err.message);
+    core.setFailed((err as Error).message);
   }
 }
 

src/utils.ts

@@ -92,3 +92,10 @@ export function validatePythonVersionFormatForPyPy(version: string) {
   const re = /^\d+\.\d+$/;
   return re.test(version);
 }
+
+export function isGhes(): boolean {
+  const ghUrl = new URL(
+    process.env['GITHUB_SERVER_URL'] || 'https://github.com'
+  );
+  return ghUrl.hostname.toUpperCase() !== 'GITHUB.COM';
+}