Improve readme for 3.x and 3.11-dev style python-version (#441)

Remove duplicate code introduced in #440

.github/workflows/check-dist.yml

@@ -23,10 +23,11 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Set Node.js 12.x
-        uses: actions/setup-node@v1
+      - name: Set Node.js 16.x
+        uses: actions/setup-node@v3
         with:
-          node-version: 12.x
+          node-version: 16.x
+          cache: npm
 
       - name: Install dependencies
         run: npm ci

.github/workflows/codeql-analysis.yml

@@ -2,6 +2,7 @@ name: "Code scanning - action"
 
 on:
   push:
+    branches: [ 'main' ]
   pull_request:
   schedule:
     - cron: '25 3 * * 5'

.github/workflows/e2e-cache.yml

@@ -21,9 +21,9 @@ jobs:
       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']
+        python-version: ['3.9', 'pypy-3.7-v7.x']
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup Python
         uses: ./
         with:
@@ -39,18 +39,48 @@ jobs:
       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']
+        python-version: ['3.9', 'pypy-3.9-v7.x']
     steps:
-      - uses: actions/checkout@v2
-      - name: Install pipenv
-        run: pipx install pipenv
+      - uses: actions/checkout@v3
       - name: Setup Python
         uses: ./
         with:
           python-version: ${{ matrix.python-version }}
           cache: 'pipenv'
+      - name: Install pipenv
+        run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
       - name: Install dependencies
-        run: pipenv install flake8
+        shell: pwsh
+        run: |
+          mv ./__tests__/data/Pipfile.lock .
+          mv ./__tests__/data/Pipfile .
+          if ("${{ matrix.python-version }}" -Match "pypy") {
+            pipenv install --keep-outdated --python pypy
+          } else {
+            pipenv install --keep-outdated --python ${{ matrix.python-version }}
+          }
+
+  python-poetry-dependencies-caching:
+    name: Test poetry (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ['3.9', 'pypy-3.8']
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install poetry
+        run: pipx install poetry
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'poetry'
+      - name: Init pyproject.toml
+        run: poetry init -n
+      - name: Install dependencies
+        run: poetry add flake8
 
   python-pip-dependencies-caching-path:
     name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }})
@@ -59,9 +89,9 @@ jobs:
       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']
+        python-version: ['3.9', 'pypy-3.7-v7.x']
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup Python
         uses: ./
         with:
@@ -78,16 +108,24 @@ jobs:
       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']
+        python-version: ['3.9', 'pypy-3.9-v7.x']
     steps:
-      - uses: actions/checkout@v2
-      - name: Install pipenv
-        run: pipx install pipenv
+      - uses: actions/checkout@v3
       - name: Setup Python
         uses: ./
         with:
           python-version: ${{ matrix.python-version }}
           cache: 'pipenv'
-          cache-dependency-path: '**/requirements-linux.txt'
+          cache-dependency-path: '**/pipenv-requirements.txt'
+      - name: Install pipenv
+        run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
       - name: Install dependencies
-        run: pipenv install flake8
+        shell: pwsh
+        run: |
+          mv ./__tests__/data/Pipfile.lock .
+          mv ./__tests__/data/Pipfile .
+          if ("${{ matrix.python-version }}" -Match "pypy") {
+            pipenv install --keep-outdated --python pypy
+          } else {
+            pipenv install --keep-outdated --python ${{ matrix.python-version }}
+          }

.github/workflows/licensed.yml

@@ -14,11 +14,16 @@ jobs:
     name: Check licenses
     steps:
       - uses: actions/checkout@v2
+      - name: Set Node.js 16.x
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16.x
+          cache: npm
       - run: npm ci
       - name: Install licensed
         run: |
           cd $RUNNER_TEMP
-          curl -Lfs -o licensed.tar.gz https://github.com/github/licensed/releases/download/2.12.2/licensed-2.12.2-linux-x64.tar.gz
+          curl -Lfs -o licensed.tar.gz https://github.com/github/licensed/releases/download/3.4.4/licensed-3.4.4-linux-x64.tar.gz
           sudo tar -xzf licensed.tar.gz
           sudo mv licensed /usr/local/bin/licensed
       - run: licensed status

.github/workflows/test-pypy.yml

@@ -22,6 +22,7 @@ jobs:
         pypy:
         - 'pypy-2.7'
         - 'pypy-3.7'
+        - 'pypy3.9'
         - 'pypy-2.7-v7.3.4'
         - 'pypy-3.7-v7.3.5'
         - 'pypy-3.7-v7.3.4'
@@ -29,18 +30,64 @@ jobs:
         - 'pypy-3.7-v7.x'
         - 'pypy-2.7-v7.3.4rc1'
         - 'pypy-3.7-nightly'
+        - 'pypy3.8-v7.3.7'
 
     steps:
       - name: Checkout
         uses: actions/checkout@v2
   
       - name: setup-python ${{ matrix.pypy }}
+        id: setup-python
         uses: ./
         with:
           python-version: ${{ matrix.pypy }}
 
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
       - name: PyPy and Python version
         run: python --version
   
       - name: Run simple code
         run: python -c 'import math; print(math.factorial(5))'
+
+      - name: Assert PyPy is running
+        run: |
+          import platform
+          assert platform.python_implementation().lower() == "pypy"
+        shell: python
+
+      - name: Assert expected binaries (or symlinks) are present
+        run: |
+          EXECUTABLE=${{ matrix.pypy }}
+          EXECUTABLE=${EXECUTABLE/pypy-/pypy}  # remove the first '-' in "pypy-X.Y" -> "pypyX.Y" to match executable name
+          EXECUTABLE=${EXECUTABLE%%-*}  # remove any -* suffixe
+          ${EXECUTABLE} --version
+        shell: bash
+
+  setup-pypy-noenv:
+    name: Setup PyPy ${{ matrix.pypy }} ${{ matrix.os }} (noenv)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-latest]
+        pypy: ['pypy2.7', 'pypy3.7', 'pypy3.8', 'pypy3.9-nightly']
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: setup-python ${{ matrix.pypy }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.pypy }}
+          update-environment: false
+
+      - name: PyPy and Python version
+        run: ${{ steps.setup-python.outputs.python-path }} --version
+
+      - name: Run simple code
+        run: ${{ steps.setup-python.outputs.python-path }} -c 'import math; print(math.factorial(5))'

.github/workflows/test-python.yml

@@ -10,28 +10,9 @@ on:
       - '**.md'
   schedule:
     - cron: 30 3 * * *
+  workflow_dispatch:
 
 jobs:
-  default-version:
-    name: Setup default version
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-
-    - name: setup default python 
-      uses: ./
-
-    - name: Validate version
-      run: python --version
-
-    - name: Run simple python code
-      run: python -c 'import math; print(math.factorial(5))'
-
   setup-versions-from-manifest:
     name: Setup ${{ matrix.python }} ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
@@ -42,13 +23,56 @@ jobs:
         python: [3.5.4, 3.6.7, 3.7.5, 3.8.1]
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: setup-python ${{ matrix.python }}
+      id: setup-python
       uses: ./
       with:
         python-version: ${{ matrix.python }}
 
+    - 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 ${{ matrix.python }}" -ne "$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-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} version file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
+        python: [3.5.4, 3.6.7, 3.7.5, 3.8.1]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: build-version-file ${{ matrix.python }}
+      run: echo ${{ matrix.python }} > .python-version
+
+    - name: setup-python ${{ matrix.python }}
+      id: setup-python
+      uses: ./
+      with:
+        python-version-file: '.python-version'
+
+    - name: Check python-path
+      run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+      shell: bash
+
     - name: Validate version
       run: |
         $pythonVersion = (python --version)
@@ -71,13 +95,18 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: setup-python 3.9.0-beta.4
+      id: setup-python
       uses: ./
       with:
         python-version: '3.9.0-beta.4'
 
+    - 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)
@@ -91,23 +120,55 @@ jobs:
     - name: Run simple code
       run: python -c 'import math; print(math.factorial(5))'
 
-  setup-pypy-legacy:
-    name: Setup PyPy ${{ matrix.os }}
+  setup-dev-version:
+    name: Setup 3.9-dev ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-10.15, windows-latest, ubuntu-18.04, ubuntu-20.04]
+        os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
-    - name: setup-python pypy3
+    - name: setup-python 3.9-dev
+      id: setup-python
       uses: ./
       with:
-        python-version: 'pypy3'
+        python-version: '3.9-dev'
 
-    - name: setup-python pypy2
+    - name: Check python-path
+      run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+      shell: bash
+
+    - name: Validate version
+      run: ${{ startsWith(steps.setup-python.outputs.python-version, '3.9.') }}
+      shell: bash
+
+    - name: Run simple code
+      run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-noenv:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} (noenv)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
+        python: ["3.7", "3.8", "3.9", "3.10"]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: setup-python ${{ matrix.python }}
+      id: setup-python
       uses: ./
       with:
-        python-version: 'pypy2'
+        python-version: ${{ matrix.python }}
+        update-environment: false
+
+    - name: Python version
+      run: ${{ steps.setup-python.outputs.python-path }} --version
+
+    - name: Run simple code
+      run: ${{ steps.setup-python.outputs.python-path }} -c 'import math; print(math.factorial(5))'

.github/workflows/workflow.yml

@@ -19,13 +19,14 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v2
 
-    - name: Set Node.js 12.x
-      uses: actions/setup-node@v1
+    - name: Set Node.js 16.x
+      uses: actions/setup-node@v3
       with:
-        node-version: 12.x
+        node-version: 16.x
+        cache: npm
 
-    - name: npm install
-      run: npm install
+    - name: npm ci
+      run: npm ci
 
     - name: Lint
       run: npm run format-check
@@ -88,3 +89,13 @@ jobs:
         python-version: 3.8.1
     - name: Verify 3.8.1
       run: python __tests__/verify-python.py 3.8.1
+
+    - name: Run with setup-python 3.10
+      id: cp310
+      uses: ./
+      with:
+        python-version: "3.10"
+    - name: Verify 3.10
+      run: python __tests__/verify-python.py 3.10
+    - name: Run python-path sample 3.10
+      run: pipx run --python '${{ steps.cp310.outputs.python-path }}' nox --version

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

@@ -1,6 +1,6 @@
 ---
 name: "@actions/cache"
-version: 1.0.7
+version: 3.0.0
 type: npm
 summary: Actions cache lib
 homepage: https://github.com/actions/toolkit/tree/main/packages/cache

.licenses/npm/@actions/core.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@actions/core"
-version: 1.2.6
+version: 1.7.0
 type: npm
 summary: Actions core lib
 homepage: https://github.com/actions/toolkit/tree/main/packages/core

.licenses/npm/@actions/http-client-2.0.1.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@actions/http-client"
-version: 1.0.8
+version: 2.0.1
 type: npm
 summary: Actions Http Client
 homepage: https://github.com/actions/http-client#readme

.licenses/npm/@actions/http-client.dep.yml

@@ -0,0 +1,32 @@
+---
+name: "@actions/http-client"
+version: 1.0.11
+type: npm
+summary: Actions Http Client
+homepage: https://github.com/actions/http-client#readme
+license: mit
+licenses:
+- sources: LICENSE
+  text: |
+    Actions Http Client for Node.js
+
+    Copyright (c) GitHub, Inc.
+
+    All rights reserved.
+
+    MIT License
+
+    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: []

.licenses/npm/@azure/core-http.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@azure/core-http"
-version: 2.2.1
+version: 2.2.2
 type: npm
 summary: Isomorphic client Runtime for Typescript/node.js/browser javascript client
   libraries generated using AutoRest

.licenses/npm/@types/node.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@types/node"
-version: 12.20.36
+version: 16.11.25
 type: npm
 summary: TypeScript definitions for Node.js
 homepage: https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node

.licenses/npm/node-fetch.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: node-fetch
-version: 2.6.5
+version: 2.6.7
 type: npm
 summary: A light-weight module that brings window.fetch to node.js
 homepage: https://github.com/bitinn/node-fetch

CODE_OF_CONDUCT.md

@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to make participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies within all project spaces, and it also applies when
+an individual is representing the project or its community in public spaces.
+Examples of representing a project or community include using an official
+project e-mail address, posting via an official social media account, or acting
+as an appointed representative at an online or offline event. Representation of
+a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at opensource+actions/setup-python@github.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

README.md

@@ -1,4 +1,4 @@
-# setup-python V2
+# setup-python V4
 
 <p align="left">
   <a href="https://github.com/actions/setup-python"><img alt="GitHub Actions status" src="https://github.com/actions/setup-python/workflows/Main%20workflow/badge.svg"></a>
@@ -9,7 +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.
+- optionally caching dependencies for pip, pipenv and poetry.
 - registering problem matchers for error output.
 
 # What's new
@@ -19,7 +19,8 @@ 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
+- Support for built-in caching of pip, pipenv and poetry dependencies
+- Support for `.python-version` file
 
 # Usage
 
@@ -28,14 +29,24 @@ See [action.yml](action.yml)
 Basic:
 ```yaml
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   with:
     python-version: '3.x' # Version range or exact version of a Python version to use, using SemVer's version range syntax
     architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
 - run: python my_script.py
 ```
 
+Read Python version from file:
+```yaml
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
+  with:
+    python-version-file: '.python-version' # Read python version from a file
+- run: python my_script.py
+```
+
 Matrix Testing:
 ```yaml
 jobs:
@@ -43,12 +54,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ '2.x', '3.x', 'pypy-2.7', 'pypy-3.6', 'pypy-3.7' ]
+        python-version: [ '2.x', '3.x', 'pypy2.7', 'pypy3.7', 'pypy3.8' ]
     name: Python ${{ matrix.python-version }} sample
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
           architecture: x64
@@ -63,20 +74,20 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['2.7', '3.6', '3.7', '3.8', 'pypy-2.7', 'pypy-3.6']
+        python-version: ['2.7', '3.7', '3.8', '3.9', '3.10', 'pypy2.7', 'pypy3.8']
         exclude:
           - os: macos-latest
             python-version: '3.8'
           - os: windows-latest
             python-version: '3.6'
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Display Python version
-        run: python -c "import sys; print(sys.version)"
+        run: python --version
 ```
 
 Download and set up a version of Python that does not come preinstalled on an image:
@@ -87,10 +98,10 @@ jobs:
     strategy:
       matrix:
         # in this example, there is a newer version already installed, 3.7.7, so the older version will be downloaded
-        python-version: ['3.5', '3.6', '3.7.4', '3.8']
+        python-version: ['3.7.4', '3.8', '3.9', '3.10']
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - run: python my_script.py
@@ -99,20 +110,40 @@ jobs:
 Download and set up an accurate pre-release version of Python:
 ```yaml
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   with:
-    python-version: '3.9.0-beta.4'
+    python-version: '3.11.0-alpha.1'
 - run: python my_script.py
 ```
 
 Download and set up the latest available version of Python (includes both pre-release and stable versions):
 ```yaml
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   with:
-    python-version: '3.9.0-alpha - 3.9.0' # SemVer's version range syntax
+    python-version: '3.11.0-alpha - 3.11.0' # SemVer's version range syntax
+- run: python my_script.py
+```
+
+Download and set up the latest patch version of Python (for specified major & minor versions):
+```yaml
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
+  with:
+    python-version: '3.11-dev'
+- run: python my_script.py
+```
+
+Download and set up the latest stable version of Python (for specified major version):
+```yaml
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
+  with:
+    python-version: '3.x'
 - run: python my_script.py
 ```
 
@@ -125,18 +156,34 @@ jobs:
     strategy:
       matrix:
         python-version:
-        - 'pypy-3.6' # the latest available version of PyPy that supports Python 3.6
-        - 'pypy-3.7' # the latest available version of PyPy that supports Python 3.7
-        - 'pypy-3.7-v7.3.3' # Python 3.7 and PyPy 7.3.3
+        - 'pypy3.7' # the latest available version of PyPy that supports Python 3.7
+        - 'pypy3.7-v7.3.3' # Python 3.7 and PyPy 7.3.3
+        - 'pypy3.8' # the latest available version of PyPy that supports Python 3.8
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - run: python my_script.py
 ```
 More details on PyPy syntax and examples of using preview / nightly versions of PyPy can be found in the [Available versions of PyPy](#available-versions-of-pypy) section.
 
+An output is available with the absolute path of the python interpreter executable if you need it:
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
+      id: cp310
+      with:
+        python-version: "3.10"
+    - run: pipx run --python '${{ steps.cp310.outputs.python-path }}' nox --version
+```
+
+>The environment variable `pythonLocation` also becomes available after Python or PyPy installation. It contains the absolute path to the folder where the desired version of Python or PyPy is installed.
+
 # Getting started with Python + Actions
 
 Check out our detailed guide on using [Python with GitHub Actions](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/using-python-with-github-actions).
@@ -146,22 +193,25 @@ Check out our detailed guide on using [Python with GitHub Actions](https://help.
 `setup-python` is able to configure Python from two sources:
 
 - Preinstalled versions of Python in the tools cache on GitHub-hosted runners.
-    - For detailed information regarding the available versions of Python that are installed see [Supported software](https://docs.github.com/en/actions/reference/specifications-for-github-hosted-runners#supported-software).
+    - For detailed information regarding the available versions of Python that are installed, see [Supported software](https://docs.github.com/en/actions/reference/specifications-for-github-hosted-runners#supported-software).
     - For every minor version of Python, expect only the latest patch to be preinstalled.
     - If `3.8.1` is installed for example, and `3.8.2` is released, expect `3.8.1` to be removed and replaced by `3.8.2` in the tools cache.
     - If the exact patch version doesn't matter to you, specifying just the major and minor version will get you the latest preinstalled patch version. In the previous example, the version spec `3.8` will use the `3.8.2` Python version found in the cache.
+    - Use `-dev` instead of a patch number (e.g., `3.11-dev`) to install the latest patch version release for a given minor version, *alpha and beta releases included*.
 - Downloadable Python versions from GitHub Releases ([actions/python-versions](https://github.com/actions/python-versions/releases)).
     - All available versions are listed in the [version-manifest.json](https://github.com/actions/python-versions/blob/main/versions-manifest.json) file.
     - If there is a specific version of Python that is not available, you can open an issue here
 
+**Note:** Python versions used in this action are generated in the [python-versions](https://github.com/actions/python-versions) repository. For macOS and Ubuntu images python versions are built from the source code. For Windows the python-versions repository uses installation executable. For more information please refer to the [python-versions](https://github.com/actions/python-versions) repository.
+
  # Available versions of PyPy
 
  `setup-python` is able to configure PyPy from two sources:
 
 - Preinstalled versions of PyPy in the tools cache on GitHub-hosted runners
-  - For detailed information regarding the available versions of PyPy that are installed see [Supported software](https://docs.github.com/en/actions/reference/specifications-for-github-hosted-runners#supported-software).
+  - For detailed information regarding the available versions of PyPy that are installed, see [Supported software](https://docs.github.com/en/actions/reference/specifications-for-github-hosted-runners#supported-software).
   - For the latest PyPy release, all versions of Python are cached.
-  - Cache is updated with a 1-2 week delay. If you specify the PyPy version as `pypy-3.6`, the cached version will be used although a newer version is available. If you need to start using the recently released version right after release, you should specify the exact PyPy version using `pypy-3.6-v7.3.3`.
+  - Cache is updated with a 1-2 week delay. If you specify the PyPy version as `pypy3.7` or `pypy-3.7`, the cached version will be used although a newer version is available. If you need to start using the recently released version right after release, you should specify the exact PyPy version using `pypy3.7-v7.3.3` or `pypy-3.7-v7.3.3`.
 
 - Downloadable PyPy versions from the [official PyPy site](https://downloads.python.org/pypy/).
   - All available versions that we can download are listed in [versions.json](https://downloads.python.org/pypy/versions.json) file.
@@ -179,8 +229,8 @@ GitHub hosted runners have a tools cache that comes with a few versions of Pytho
 |**PyPy Tool Cache**|`RUNNER_TOOL_CACHE/PyPy/*`|
 
 GitHub virtual environments are setup in [actions/virtual-environments](https://github.com/actions/virtual-environments). During the setup, the available versions of Python and PyPy are automatically downloaded, setup and documented.
-- [Tools cache setup for Ubuntu](https://github.com/actions/virtual-environments/blob/main/images/linux/scripts/installers/hosted-tool-cache.sh)
-- [Tools cache setup for Windows](https://github.com/actions/virtual-environments/blob/main/images/win/scripts/Installers/Download-ToolCache.ps1)
+- Tools cache setup for Ubuntu: [Install-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/linux/scripts/installers/Install-Toolset.ps1) [Configure-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/linux/scripts/installers/Configure-Toolset.ps1)
+- Tools cache setup for Windows: [Install-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/win/scripts/Installers/Install-Toolset.ps1) [Configure-Toolset.ps1](https://github.com/actions/virtual-environments/blob/main/images/win/scripts/Installers/Configure-Toolset.ps1)
 
 # Specifying a Python version
 
@@ -194,27 +244,30 @@ You should specify only a major and minor version if you are okay with the most
   - Using the most recent patch version will result in a very quick setup since no downloads will be required since a locally installed version Python on the runner will be used.
 
 # Specifying a PyPy version
-The version of PyPy should be specified in the format `pypy-<python_version>[-v<pypy_version>]`.
+The version of PyPy should be specified in the format `pypy<python_version>[-v<pypy_version>]` or `pypy-<python_version>[-v<pypy_version>]`.
 The `<pypy_version>` parameter is optional and can be skipped. The latest version will be used in this case.
 
 ```
-pypy-3.6 # the latest available version of PyPy that supports Python 3.6
-pypy-3.7 # the latest available version of PyPy that supports Python 3.7
-pypy-2.7 # the latest available version of PyPy that supports Python 2.7
-pypy-3.7-v7.3.3 # Python 3.7 and PyPy 7.3.3
-pypy-3.7-v7.x # Python 3.7 and the latest available PyPy 7.x
-pypy-3.7-v7.3.3rc1 # Python 3.7 and preview version of PyPy
-pypy-3.7-nightly # Python 3.7 and nightly PyPy
+pypy3.7 or pypy-3.7 # the latest available version of PyPy that supports Python 3.7
+pypy3.8 or pypy-3.8 # the latest available version of PyPy that supports Python 3.8
+pypy2.7 or pypy-2.7 # the latest available version of PyPy that supports Python 2.7
+pypy3.7-v7.3.3 or pypy-3.7-v7.3.3 # Python 3.7 and PyPy 7.3.3
+pypy3.7-v7.x or pypy-3.7-v7.x # Python 3.7 and the latest available PyPy 7.x
+pypy3.7-v7.3.3rc1 or pypy-3.7-v7.3.3rc1 # Python 3.7 and preview version of PyPy
+pypy3.7-nightly or pypy-3.7-nightly # Python 3.7 and nightly PyPy
 ```
 
+Note: `pypy2` and `pypy3` have been removed in v3. Use the format above instead.
+
 # 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 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`, `pipenv` and `poetry`. 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.
+The action defaults to searching for a dependency file (`requirements.txt` for pip, `Pipfile.lock` for pipenv or `poetry.lock` for poetry) 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
+ - For poetry, 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.
 
@@ -224,59 +277,104 @@ The requirements file format allows to specify dependency versions using logical
 
 ```yaml
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   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
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   with:
     python-version: '3.9'
     cache: 'pipenv'
+- name: Install pipenv
+  run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
 - run: pipenv install
-- run: pipenv test
+```
+
+**Caching poetry dependencies:**
+```yaml
+steps:
+- uses: actions/checkout@v3
+- name: Install poetry
+  run: pipx install poetry
+- uses: actions/setup-python@v4
+  with:
+    python-version: '3.9'
+    cache: 'poetry'
+- run: poetry install
+- run: poetry run pytest
 ```
 
 **Using wildcard patterns to cache dependencies**
 ```yaml
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   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
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
   with:
     python-version: '3.9'
     cache: 'pipenv'
     cache-dependency-path: |
       server/app/Pipfile.lock
       __test__/app/Pipfile.lock
+- name: Install pipenv
+  run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
 - run: pipenv install
-- run: pipenv test
 ```
 
+**Using a list of wildcard patterns to cache dependencies**
+```yaml
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
+  with:
+    python-version: '3.10'
+    cache: 'pip'
+    cache-dependency-path: |
+      **/setup.cfg
+      **/requirements*.txt
+- run: pip install -e . -r subdirectory/requirements-dev.txt
+```
+
+
+# Environment variables
+
+ The `update-environment` flag defaults to `true`.
+ With this setting, the action will add/update environment variables (e.g. `PATH`, `PKG_CONFIG_PATH`, `pythonLocation`) for `python` to just work out of the box.
+
+ If `update-environment` is set to `false`, the action will not add/update environment variables.
+ This can prove useful if you want the only side-effect to be to ensure python is installed and rely on the `python-path` output to run python.
+ Such a requirement on side-effect could be because you don't want your composite action messing with your user's workflows.
+
+ ```yaml
+ steps:
+   - uses: actions/checkout@v3
+   - uses: actions/setup-python@v4
+     id: cp310
+     with:
+       python-version: '3.10'
+       update-environment: false
+   - run: ${{ steps.cp310.outputs.python-path }} my_script.py
+ ```
+
 # 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.
@@ -294,7 +392,7 @@ If you are experiencing problems while configuring Python on your self-hosted ru
 ### Linux
 
 - The Python packages that are downloaded from `actions/python-versions` are originally compiled from source in `/opt/hostedtoolcache/` with the [--enable-shared](https://github.com/actions/python-versions/blob/94f04ae6806c6633c82db94c6406a16e17decd5c/builders/ubuntu-python-builder.psm1#L35) flag, which makes them non-relocatable.
-- Create an environment variable called `AGENT_TOOLSDIRECTORY` and set it to `/opt/hostedtoolcache`. This controls where the runner downloads and installs tools.
+- By default runner downloads and install the tools to `/opt/hostedtoolcache`. The environment variable called `AGENT_TOOLSDIRECTORY` can be set to change this location.
   - In the same shell that your runner is using, type `export AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`.
   - A more permanent way of setting the environment variable is to create a `.env` file in the same directory as your runner and to add `AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`. This ensures the variable is always set if your runner is configured as a service.
 - Create a directory called `hostedtoolcache` inside `/opt`.
@@ -304,7 +402,7 @@ If you are experiencing problems while configuring Python on your self-hosted ru
   - The user starting the runner is in the owning group, and the owning group has write permission.
   - All users have write permission.
 - One quick way to grant access is to change the user and group of `/opt/hostedtoolcache` to be the same as the runners using `chown`.
-    - `sudo chown runner-user:runner-group opt/hostedtoolcache/`.
+    - `sudo chown runner-user:runner-group /opt/hostedtoolcache/`.
 - If your runner is configured as a service and you run into problems, make sure the user that the service is running as is correct. For more information, you can [check the status of your self-hosted runner](https://help.github.com/en/actions/hosting-your-own-runners/configuring-the-self-hosted-runner-application-as-a-service#checking-the-status-of-the-service).
 
 ### Mac

__tests__/cache-restore.test.ts

@@ -5,11 +5,21 @@ import {getCacheDistributor} from '../src/cache-distributions/cache-factory';
 
 describe('restore-cache', () => {
   const pipFileLockHash =
-    '67d817abcde9c72da0ed5b8f235647cb14638b9ff9d742b42e4406d2eb16fe3c';
+    'a3bdcc71289e4979ca9e051810d81999cc99823109faf6912e17ff14c8e621a6';
   const requirementsHash =
     'd8110e0006d7fb5ee76365d565eef9d37df1d11598b912d3eb66d398d57a1121';
   const requirementsLinuxHash =
     '2d0ff7f46b0e120e3d3294db65768b474934242637b9899b873e6283dfd16d7c';
+  const poetryLockHash =
+    '571bf984f8d210e6a97f854e479fdd4a2b5af67b5fdac109ec337a0ea16e7836';
+  const poetryConfigOutput = `
+cache-dir = "/Users/patrick/Library/Caches/pypoetry"
+experimental.new-installer = false
+installer.parallel = true
+virtualenvs.create = true
+virtualenvs.in-project = true
+virtualenvs.path = "{cache-dir}/virtualenvs"  # /Users/patrick/Library/Caches/pypoetry/virtualenvs
+  `;
 
   // core spy
   let infoSpy: jest.SpyInstance;
@@ -17,6 +27,7 @@ describe('restore-cache', () => {
   let debugSpy: jest.SpyInstance;
   let saveSatetSpy: jest.SpyInstance;
   let getStateSpy: jest.SpyInstance;
+  let setOutputSpy: jest.SpyInstance;
 
   // cache spy
   let restoreCacheSpy: jest.SpyInstance;
@@ -47,10 +58,16 @@ describe('restore-cache', () => {
       if (input.includes('pip')) {
         return {stdout: 'pip', stderr: '', exitCode: 0};
       }
+      if (input.includes('poetry')) {
+        return {stdout: poetryConfigOutput, stderr: '', exitCode: 0};
+      }
 
       return {stdout: '', stderr: 'Error occured', exitCode: 2};
     });
 
+    setOutputSpy = jest.spyOn(core, 'setOutput');
+    setOutputSpy.mockImplementation(input => undefined);
+
     restoreCacheSpy = jest.spyOn(cache, 'restoreCache');
     restoreCacheSpy.mockImplementation(
       (cachePaths: string[], primaryKey: string, restoreKey?: string) => {
@@ -82,25 +99,23 @@ describe('restore-cache', () => {
       ],
       ['pip', '3.8.12', '__tests__/data/requirements.txt', requirementsHash],
       ['pipenv', '3.9.1', undefined, pipFileLockHash],
-      ['pipenv', '3.9.12', '__tests__/data/requirements.txt', requirementsHash]
+      ['pipenv', '3.9.12', '__tests__/data/requirements.txt', requirementsHash],
+      ['poetry', '3.9.1', undefined, poetryLockHash]
     ])(
       'restored dependencies for %s by primaryKey',
       async (packageManager, pythonVersion, dependencyFile, fileHash) => {
-        const cacheDistributor = await getCacheDistributor(
+        const cacheDistributor = 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}`
+          `Cache restored from key: setup-python-${process.env['RUNNER_OS']}-python-${pythonVersion}-${packageManager}-${fileHash}`
         );
-      }
+      },
+      30000
     );
 
     it.each([
@@ -115,7 +130,7 @@ describe('restore-cache', () => {
         dependencyFile,
         cacheDependencyPath
       ) => {
-        const cacheDistributor = await getCacheDistributor(
+        const cacheDistributor = getCacheDistributor(
           packageManager,
           pythonVersion,
           dependencyFile
@@ -141,7 +156,8 @@ describe('restore-cache', () => {
       ],
       ['pip', '3.8.12', '__tests__/data/requirements.txt', pipFileLockHash],
       ['pipenv', '3.9.1', undefined, requirementsHash],
-      ['pipenv', '3.9.12', '__tests__/data/requirements.txt', requirementsHash]
+      ['pipenv', '3.9.12', '__tests__/data/requirements.txt', requirementsHash],
+      ['poetry', '3.9.1', undefined, requirementsHash]
     ])(
       'restored dependencies for %s by primaryKey',
       async (packageManager, pythonVersion, dependencyFile, fileHash) => {
@@ -150,17 +166,24 @@ describe('restore-cache', () => {
             return primaryKey !== fileHash && restoreKey ? pipFileLockHash : '';
           }
         );
-        const cacheDistributor = await getCacheDistributor(
+        const cacheDistributor = getCacheDistributor(
           packageManager,
           pythonVersion,
           dependencyFile
         );
         await cacheDistributor.restoreCache();
         let result = '';
-        if (packageManager !== 'pipenv') {
+
+        switch (packageManager) {
+          case 'pip':
             result = `Cache restored from key: ${fileHash}`;
-        } else {
+            break;
+          case 'pipenv':
             result = 'pipenv cache is not found';
+            break;
+          case 'poetry':
+            result = 'poetry cache is not found';
+            break;
         }
 
         expect(infoSpy).toHaveBeenCalledWith(result);
@@ -168,6 +191,38 @@ describe('restore-cache', () => {
     );
   });
 
+  describe('Check if handleMatchResult', () => {
+    it.each([
+      ['pip', '3.8.12', 'requirements.txt', 'someKey', 'someKey', true],
+      ['pipenv', '3.9.1', 'requirements.txt', 'someKey', 'someKey', true],
+      ['poetry', '3.8.12', 'requirements.txt', 'someKey', 'someKey', true],
+      ['pip', '3.9.2', 'requirements.txt', undefined, 'someKey', false],
+      ['pipenv', '3.8.12', 'requirements.txt', undefined, 'someKey', false],
+      ['poetry', '3.9.12', 'requirements.txt', undefined, 'someKey', false]
+    ])(
+      'sets correct outputs',
+      async (
+        packageManager,
+        pythonVersion,
+        dependencyFile,
+        matchedKey,
+        restoredKey,
+        expectedOutputValue
+      ) => {
+        const cacheDistributor = getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        );
+        cacheDistributor.handleMatchResult(matchedKey, restoredKey);
+        expect(setOutputSpy).toHaveBeenCalledWith(
+          'cache-hit',
+          expectedOutputValue
+        );
+      }
+    );
+  });
+
   afterEach(() => {
     jest.resetAllMocks();
     jest.clearAllMocks();

__tests__/cache-save.test.ts

@@ -6,11 +6,13 @@ import {State} from '../src/cache-distributions/cache-distributor';
 
 describe('run', () => {
   const pipFileLockHash =
-    '67d817abcde9c72da0ed5b8f235647cb14638b9ff9d742b42e4406d2eb16fe3c';
+    'd1dd6218299d8a6db5fc2001d988b34a8b31f1e9d0bb4534d377dde7c19f64b3';
   const requirementsHash =
     'd8110e0006d7fb5ee76365d565eef9d37df1d11598b912d3eb66d398d57a1121';
   const requirementsLinuxHash =
     '2d0ff7f46b0e120e3d3294db65768b474934242637b9899b873e6283dfd16d7c';
+  const poetryLockHash =
+    '571bf984f8d210e6a97f854e479fdd4a2b5af67b5fdac109ec337a0ea16e7836';
 
   // core spy
   let infoSpy: jest.SpyInstance;
@@ -114,6 +116,22 @@ describe('run', () => {
       );
       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', () => {
@@ -168,6 +186,85 @@ describe('run', () => {
       );
       expect(setFailedSpy).not.toHaveBeenCalled();
     });
+
+    it('saves cache from poetry', async () => {
+      inputs['cache'] = 'poetry';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.CACHE_MATCHED_KEY) {
+          return poetryLockHash;
+        } 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 ${poetryLockHash}, not saving cache.`
+      );
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${requirementsHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves with -1 cacheId , should not fail workflow', async () => {
+      inputs['cache'] = 'poetry';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.STATE_CACHE_PRIMARY_KEY) {
+          return poetryLockHash;
+        } else if (name === State.CACHE_PATHS) {
+          return JSON.stringify([__dirname]);
+        } else {
+          return requirementsHash;
+        }
+      });
+
+      saveCacheSpy.mockImplementation(() => {
+        return -1;
+      });
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalled();
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).not.toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${poetryLockHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves with error from toolkit, should fail workflow', async () => {
+      inputs['cache'] = 'npm';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.STATE_CACHE_PRIMARY_KEY) {
+          return poetryLockHash;
+        } else if (name === State.CACHE_PATHS) {
+          return JSON.stringify([__dirname]);
+        } else {
+          return requirementsHash;
+        }
+      });
+
+      saveCacheSpy.mockImplementation(() => {
+        throw new cache.ValidationError('Validation failed');
+      });
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalledWith();
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(setFailedSpy).toHaveBeenCalled();
+    });
   });
 
   afterEach(() => {

__tests__/check-python-path.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -euo pipefail
+
+PYTHON_PATH="$1"
+PATH_EXECUTABLE=$(python -c 'import sys; print(sys.executable)')
+PYTHON_PATH_EXECUTABLE=$("${PYTHON_PATH}" -c 'import sys; print(sys.executable)')
+if [ "${PATH_EXECUTABLE}" != "${PYTHON_PATH_EXECUTABLE}" ]; then
+    echo "Executable mismatch."
+    echo "python in PATH is: ${PATH_EXECUTABLE}"
+    echo "python-path (${PYTHON_PATH}) is: ${PYTHON_PATH_EXECUTABLE}"
+    exit 1
+fi
+echo "python-path: ${PYTHON_PATH}"

__tests__/data/Pipfile

@@ -0,0 +1,13 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+flake8 = "==4.0.1"
+numpy = "==1.23.0"
+
+[dev-packages]
+
+[requires]
+python_version = "*"

__tests__/data/Pipfile.lock

@@ -1,11 +1,11 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "408f110354c997d8df1e17841d5335ae690f5b25f8c78040d62257f9535c6005"
+            "sha256": "e9c37110984955621040e2dc8548c026eb8466c23db1b8e69430289b10be8938"
         },
         "pipfile-spec": 6,
         "requires": {
-            "python_version": "3.7"
+            "python_version": "*"
         },
         "sources": [
             {
@@ -16,260 +16,64 @@
         ]
     },
     "default": {
-        "altgraph": {
+        "flake8": {
             "hashes": [
-                "sha256:743628f2ac6a7c26f5d9223c91ed8ecbba535f506f4b6f558885a8a56a105857",
-                "sha256:ebf2269361b47d97b3b88e696439f6e4cbc607c17c51feb1754f90fb79839158"
-            ],
-            "version": "==0.17.2"
-        },
-        "certifi": {
-            "hashes": [
-                "sha256:5930595817496dd21bb8dc35dad090f1c2cd0adfaf21204bf6732ca5d8ee34d3",
-                "sha256:8fc0819f1f30ba15bdb34cceffb9ef04d99f420f68eb75d901e9560b8749fc41"
+                "sha256:479b1304f72536a55948cb40a32dce8bb0ffe3501e26eaf292c7e60eb5e0428d",
+                "sha256:806e034dda44114815e23c16ef92f95c91e4c71100ff52813adf7132a6ad870d"
             ],
             "index": "pypi",
-            "version": "==2020.6.20"
+            "version": "==4.0.1"
         },
-        "chardet": {
+        "mccabe": {
             "hashes": [
-                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
-                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
+                "sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42",
+                "sha256:dd8d182285a0fe56bace7f45b5e7d1a6ebcbf524e8f3bd87eb0f125271b8831f"
+            ],
+            "version": "==0.6.1"
+        },
+        "numpy": {
+            "hashes": [
+                "sha256:092f5e6025813e64ad6d1b52b519165d08c730d099c114a9247c9bb635a2a450",
+                "sha256:196cd074c3f97c4121601790955f915187736f9cf458d3ee1f1b46aff2b1ade0",
+                "sha256:1c29b44905af288b3919803aceb6ec7fec77406d8b08aaa2e8b9e63d0fe2f160",
+                "sha256:2b2da66582f3a69c8ce25ed7921dcd8010d05e59ac8d89d126a299be60421171",
+                "sha256:5043bcd71fcc458dfb8a0fc5509bbc979da0131b9d08e3d5f50fb0bbb36f169a",
+                "sha256:58bfd40eb478f54ff7a5710dd61c8097e169bc36cc68333d00a9bcd8def53b38",
+                "sha256:79a506cacf2be3a74ead5467aee97b81fca00c9c4c8b3ba16dbab488cd99ba10",
+                "sha256:94b170b4fa0168cd6be4becf37cb5b127bd12a795123984385b8cd4aca9857e5",
+                "sha256:97a76604d9b0e79f59baeca16593c711fddb44936e40310f78bfef79ee9a835f",
+                "sha256:98e8e0d8d69ff4d3fa63e6c61e8cfe2d03c29b16b58dbef1f9baa175bbed7860",
+                "sha256:ac86f407873b952679f5f9e6c0612687e51547af0e14ddea1eedfcb22466babd",
+                "sha256:ae8adff4172692ce56233db04b7ce5792186f179c415c37d539c25de7298d25d",
+                "sha256:bd3fa4fe2e38533d5336e1272fc4e765cabbbde144309ccee8675509d5cd7b05",
+                "sha256:d0d2094e8f4d760500394d77b383a1b06d3663e8892cdf5df3c592f55f3bff66",
+                "sha256:d54b3b828d618a19779a84c3ad952e96e2c2311b16384e973e671aa5be1f6187",
+                "sha256:d6ca8dabe696c2785d0c8c9b0d8a9b6e5fdbe4f922bde70d57fa1a2848134f95",
+                "sha256:d8cc87bed09de55477dba9da370c1679bd534df9baa171dd01accbb09687dac3",
+                "sha256:f0f18804df7370571fb65db9b98bf1378172bd4e962482b857e612d1fec0f53e",
+                "sha256:f1d88ef79e0a7fa631bb2c3dda1ea46b32b1fe614e10fedd611d3d5398447f2f",
+                "sha256:f9c3fc2adf67762c9fe1849c859942d23f8d3e0bee7b5ed3d4a9c3eeb50a2f07",
+                "sha256:fc431493df245f3c627c0c05c2bd134535e7929dbe2e602b80e42bf52ff760bc",
+                "sha256:fe8b9683eb26d2c4d5db32cd29b38fdcf8381324ab48313b5b69088e0e355379"
             ],
             "index": "pypi",
-            "version": "==3.0.4"
+            "version": "==1.23.0"
         },
-        "docutils": {
+        "pycodestyle": {
             "hashes": [
-                "sha256:0c5b78adfbf7762415433f5515cd5c9e762339e23369dbe8000d84a4bf4ab3af",
-                "sha256:c2de3a60e9e7d07be26b7f2b00ca0309c207e06c100f9cc2a94931fc75a478fc"
+                "sha256:720f8b39dde8b293825e7ff02c475f3077124006db4f440dcbc9a20b76548a20",
+                "sha256:eddd5847ef438ea1c7870ca7eb78a9d47ce0cdb4851a5523949f2601d0cbbe7f"
             ],
-            "index": "pypi",
-            "version": "==0.16"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==2.8.0"
         },
-        "future": {
+        "pyflakes": {
             "hashes": [
-                "sha256:b1bead90b70cf6ec3f0710ae53a525360fa360d306a86583adc6bf83a4db537d"
+                "sha256:05a85c2872edf37a4ed30b0cce2f6093e1d0581f8c19d7393122da7e25b2b24c",
+                "sha256:3bb3a3f256f4b7968c9c788781e4ff07dce46bdf12339dcda61053375426ee2e"
             ],
-            "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",
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+]
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+]
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+    {file = "kivy_deps.gstreamer-0.1.17-cp27-cp27m-win_amd64.whl", hash = "sha256:0d9598d2d31c0e780adf4b767fa3a691123621fd0ffef94b83cf82c2da84341b"},
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+    {file = "kivy_deps.gstreamer-0.1.17-cp36-cp36m-win_amd64.whl", hash = "sha256:c29cfc63fe70a58dad889e631f1ba4711c9ea80103f2b2b8d670a97f093076c8"},
+    {file = "kivy_deps.gstreamer-0.1.17-cp37-cp37m-win32.whl", hash = "sha256:4d996377111e854b3dea90846f9b2f98766a44529fd8b72125e18c552381d928"},
+    {file = "kivy_deps.gstreamer-0.1.17-cp37-cp37m-win_amd64.whl", hash = "sha256:739cd331b9f33a822d700273674a79a3157054e9358a01a0d553f094a5f4a8c9"},
+    {file = "kivy_deps.gstreamer-0.1.17-cp38-cp38-win_amd64.whl", hash = "sha256:3d53d2c84c0a997c4cac6c239b1e0a6486e533836321003dc365ec42b97a664b"},
+]
+"kivy-deps.sdl2" = [
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+    {file = "kivy_deps.sdl2-0.1.22-cp27-cp27m-win_amd64.whl", hash = "sha256:228128cdd8112dc7505ac43027a770476e9ef282e0b84ca68037133cd025960b"},
+    {file = "kivy_deps.sdl2-0.1.22-cp35-cp35m-win32.whl", hash = "sha256:053f26e8c05d5545bdbc7eeb8c450b8e4410ee355792e9345af536110fe247e2"},
+    {file = "kivy_deps.sdl2-0.1.22-cp35-cp35m-win_amd64.whl", hash = "sha256:5ce23f1a3286d6288751a12b0eaefd02f947ea101bb807e9781b964e496fc3f3"},
+    {file = "kivy_deps.sdl2-0.1.22-cp36-cp36m-win32.whl", hash = "sha256:96e1fa89fd8b5351f2d3c26bbffd50df8d554b03fba4025ecc941d773d241698"},
+    {file = "kivy_deps.sdl2-0.1.22-cp36-cp36m-win_amd64.whl", hash = "sha256:c3ace0ddde0e59cdcaf260eda1daa0c05ca9bf8cd0c4ea404539de25a5dcaec7"},
+    {file = "kivy_deps.sdl2-0.1.22-cp37-cp37m-win32.whl", hash = "sha256:7928746eaed51944c10d1bb36fcefebe3d1aff1b97ba32359c2c97ba74707e1b"},
+    {file = "kivy_deps.sdl2-0.1.22-cp37-cp37m-win_amd64.whl", hash = "sha256:2c2fd5a12a7a9afe3bb962b273561099a180edae91bb9c8f8386b72253fcae4a"},
+    {file = "kivy_deps.sdl2-0.1.22-cp38-cp38-win32.whl", hash = "sha256:9270fa8ed5130074b167a7a3a9c85efc3cfe3c04584ab084cb6ae9e4edfa8168"},
+    {file = "kivy_deps.sdl2-0.1.22-cp38-cp38-win_amd64.whl", hash = "sha256:92ed97d3247bc8ce98f336cbc940bb889310199326e9ccf251c49ae7e4b80de8"},
+]
+kivy-garden = [
+    {file = "Kivy Garden-0.1.4.tar.gz", hash = "sha256:9b7d9de5efacbcd0c4b3dd873b30622a86093c9965aa47b523c7a32f3eb34610"},
+    {file = "kivy-garden-0.1.4.tar.gz", hash = "sha256:c256f42788421273a08fbb0a228f0fb0e80dd86b629fb8c0920507f645be6c72"},
+]
+packaging = [
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+    {file = "packaging-21.0.tar.gz", hash = "sha256:7dc96269f53a4ccec5c0670940a4281106dd0bb343f47b7471f779df49c2fbe7"},
+]
+pdf2image = [
+    {file = "pdf2image-1.12.1.tar.gz", hash = "sha256:a0d9906f5507192210a8d5d7ead63145e9dec4bccc4564b1fb644e923913c31c"},
+]
+pefile = [
+    {file = "pefile-2021.9.3.tar.gz", hash = "sha256:344a49e40a94e10849f0fe34dddc80f773a12b40675bf2f7be4b8be578bdd94a"},
+]
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+    {file = "Pillow-7.2.0-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:c92302a33138409e8f1ad16731568c55c9053eee71bb05b6b744067e1b62380f"},
+    {file = "Pillow-7.2.0-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:8dad18b69f710bf3a001d2bf3afab7c432785d94fcf819c16b5207b1cfd17d38"},
+    {file = "Pillow-7.2.0-cp35-cp35m-manylinux2014_aarch64.whl", hash = "sha256:431b15cffbf949e89df2f7b48528be18b78bfa5177cb3036284a5508159492b5"},
+    {file = "Pillow-7.2.0-cp35-cp35m-win32.whl", hash = "sha256:09d7f9e64289cb40c2c8d7ad674b2ed6105f55dc3b09aa8e4918e20a0311e7ad"},
+    {file = "Pillow-7.2.0-cp35-cp35m-win_amd64.whl", hash = "sha256:0295442429645fa16d05bd567ef5cff178482439c9aad0411d3f0ce9b88b3a6f"},
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+    {file = "Pillow-7.2.0-cp36-cp36m-manylinux2014_aarch64.whl", hash = "sha256:06aba4169e78c439d528fdeb34762c3b61a70813527a2c57f0540541e9f433a8"},
+    {file = "Pillow-7.2.0-cp36-cp36m-win32.whl", hash = "sha256:f7e30c27477dffc3e85c2463b3e649f751789e0f6c8456099eea7ddd53be4a8a"},
+    {file = "Pillow-7.2.0-cp36-cp36m-win_amd64.whl", hash = "sha256:ffe538682dc19cc542ae7c3e504fdf54ca7f86fb8a135e59dd6bc8627eae6cce"},
+    {file = "Pillow-7.2.0-cp37-cp37m-macosx_10_10_x86_64.whl", hash = "sha256:94cf49723928eb6070a892cb39d6c156f7b5a2db4e8971cb958f7b6b104fb4c4"},
+    {file = "Pillow-7.2.0-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:6edb5446f44d901e8683ffb25ebdfc26988ee813da3bf91e12252b57ac163727"},
+    {file = "Pillow-7.2.0-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:52125833b070791fcb5710fabc640fc1df07d087fc0c0f02d3661f76c23c5b8b"},
+    {file = "Pillow-7.2.0-cp37-cp37m-manylinux2014_aarch64.whl", hash = "sha256:9ad7f865eebde135d526bb3163d0b23ffff365cf87e767c649550964ad72785d"},
+    {file = "Pillow-7.2.0-cp37-cp37m-win32.whl", hash = "sha256:c79f9c5fb846285f943aafeafda3358992d64f0ef58566e23484132ecd8d7d63"},
+    {file = "Pillow-7.2.0-cp37-cp37m-win_amd64.whl", hash = "sha256:d350f0f2c2421e65fbc62690f26b59b0bcda1b614beb318c81e38647e0f673a1"},
+    {file = "Pillow-7.2.0-cp38-cp38-macosx_10_10_x86_64.whl", hash = "sha256:6d7741e65835716ceea0fd13a7d0192961212fd59e741a46bbed7a473c634ed6"},
+    {file = "Pillow-7.2.0-cp38-cp38-manylinux1_i686.whl", hash = "sha256:edf31f1150778abd4322444c393ab9c7bd2af271dd4dafb4208fb613b1f3cdc9"},
+    {file = "Pillow-7.2.0-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:d08b23fdb388c0715990cbc06866db554e1822c4bdcf6d4166cf30ac82df8c41"},
+    {file = "Pillow-7.2.0-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:5e51ee2b8114def244384eda1c82b10e307ad9778dac5c83fb0943775a653cd8"},
+    {file = "Pillow-7.2.0-cp38-cp38-win32.whl", hash = "sha256:725aa6cfc66ce2857d585f06e9519a1cc0ef6d13f186ff3447ab6dff0a09bc7f"},
+    {file = "Pillow-7.2.0-cp38-cp38-win_amd64.whl", hash = "sha256:a060cf8aa332052df2158e5a119303965be92c3da6f2d93b6878f0ebca80b2f6"},
+    {file = "Pillow-7.2.0-pp36-pypy36_pp73-macosx_10_10_x86_64.whl", hash = "sha256:9c87ef410a58dd54b92424ffd7e28fd2ec65d2f7fc02b76f5e9b2067e355ebf6"},
+    {file = "Pillow-7.2.0-pp36-pypy36_pp73-manylinux2010_x86_64.whl", hash = "sha256:e901964262a56d9ea3c2693df68bc9860b8bdda2b04768821e4c44ae797de117"},
+    {file = "Pillow-7.2.0-pp36-pypy36_pp73-win32.whl", hash = "sha256:25930fadde8019f374400f7986e8404c8b781ce519da27792cbe46eabec00c4d"},
+    {file = "Pillow-7.2.0.tar.gz", hash = "sha256:97f9e7953a77d5a70f49b9a48da7776dc51e9b738151b22dacf101641594a626"},
+]
+pygments = [
+    {file = "Pygments-2.6.1-py3-none-any.whl", hash = "sha256:ff7a40b4860b727ab48fad6360eb351cc1b33cbf9b15a0f689ca5353e9463324"},
+    {file = "Pygments-2.6.1.tar.gz", hash = "sha256:647344a061c249a3b74e230c739f434d7ea4d8b1d5f3721bc0f3558049b38f44"},
+]
+pyinstaller = [
+    {file = "PyInstaller-3.6.tar.gz", hash = "sha256:3730fa80d088f8bb7084d32480eb87cbb4ddb64123363763cf8f2a1378c1c4b7"},
+]
+pyparsing = [
+    {file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
+    {file = "pyparsing-2.4.7.tar.gz", hash = "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1"},
+]
+pywin32-ctypes = [
+    {file = "pywin32-ctypes-0.2.0.tar.gz", hash = "sha256:24ffc3b341d457d48e8922352130cf2644024a4ff09762a2261fd34c36ee5942"},
+    {file = "pywin32_ctypes-0.2.0-py2.py3-none-any.whl", hash = "sha256:9dc2d991b3479cc2df15930958b674a48a227d5361d413827a4cfd0b5876fc98"},
+]
+requests = [
+    {file = "requests-2.24.0-py2.py3-none-any.whl", hash = "sha256:fe75cc94a9443b9246fc7049224f75604b113c36acb93f87b80ed42c44cbb898"},
+    {file = "requests-2.24.0.tar.gz", hash = "sha256:b3559a131db72c33ee969480840fff4bb6dd111de7dd27c8ee1f820f4f00231b"},
+]
+urllib3 = [
+    {file = "urllib3-1.25.9-py2.py3-none-any.whl", hash = "sha256:88206b0eb87e6d677d424843ac5209e3fb9d0190d0ee169599165ec25e9d9115"},
+    {file = "urllib3-1.25.9.tar.gz", hash = "sha256:3018294ebefce6572a474f0604c2021e33b3fd8006ecd11d62107a5d2a963527"},
+]
+xlrd = [
+    {file = "xlrd-1.2.0-py2.py3-none-any.whl", hash = "sha256:e551fb498759fa3a5384a94ccd4c3c02eb7c00ea424426e212ac0c57be9dfbde"},
+    {file = "xlrd-1.2.0.tar.gz", hash = "sha256:546eb36cee8db40c3eaa46c351e67ffee6eeb5fa2650b71bc4c758a29a1b29b2"},
+]

__tests__/find-pypy.test.ts

@@ -5,6 +5,7 @@ import {HttpClient} from '@actions/http-client';
 import * as ifm from '@actions/http-client/interfaces';
 import * as tc from '@actions/tool-cache';
 import * as exec from '@actions/exec';
+import * as core from '@actions/core';
 
 import * as path from 'path';
 import * as semver from 'semver';
@@ -37,16 +38,34 @@ describe('parsePyPyVersion', () => {
     ['pypy-3.6-v7.x', {pythonVersion: '3.6', pypyVersion: 'v7.x'}],
     ['pypy-3.6', {pythonVersion: '3.6', pypyVersion: 'x'}],
     ['pypy-3.6-nightly', {pythonVersion: '3.6', pypyVersion: 'nightly'}],
-    ['pypy-3.6-v7.3.3rc1', {pythonVersion: '3.6', pypyVersion: 'v7.3.3-rc.1'}]
+    ['pypy-3.6-v7.3.3rc1', {pythonVersion: '3.6', pypyVersion: 'v7.3.3-rc.1'}],
+    ['pypy3.8-v7.3.7', {pythonVersion: '3.8', pypyVersion: 'v7.3.7'}],
+    ['pypy3.8-v7.3.x', {pythonVersion: '3.8', pypyVersion: 'v7.3.x'}],
+    ['pypy3.8-v7.x', {pythonVersion: '3.8', pypyVersion: 'v7.x'}],
+    ['pypy3.8', {pythonVersion: '3.8', pypyVersion: 'x'}],
+    ['pypy3.9-nightly', {pythonVersion: '3.9', pypyVersion: 'nightly'}],
+    ['pypy3.9-v7.3.8rc1', {pythonVersion: '3.9', pypyVersion: 'v7.3.8-rc.1'}]
   ])('%s -> %s', (input, expected) => {
     expect(finder.parsePyPyVersion(input)).toEqual(expected);
   });
 
-  it('throw on invalid input', () => {
-    expect(() => finder.parsePyPyVersion('pypy-')).toThrowError(
-      "Invalid 'version' property for PyPy. PyPy version should be specified as 'pypy-<python-version>'. See README for examples and documentation."
+  it.each(['', 'pypy-', 'pypy', 'p', 'notpypy-'])(
+    'throw on invalid input "%s"',
+    input => {
+      expect(() => finder.parsePyPyVersion(input)).toThrowError(
+        "Invalid 'version' property for PyPy. PyPy version should be specified as 'pypy<python-version>' or 'pypy-<python-version>'. See README for examples and documentation."
+      );
+    }
+  );
+
+  it.each(['pypy-2', 'pypy-3', 'pypy2', 'pypy3', 'pypy3.x', 'pypy3.8.10'])(
+    'throw on invalid input "%s"',
+    input => {
+      expect(() => finder.parsePyPyVersion(input)).toThrowError(
+        "Invalid format of Python version for PyPy. Python version should be specified in format 'x.y'. See README for examples and documentation."
+      );
+    }
   );
-  });
 });
 
 describe('getPyPyVersionFromPath', () => {
@@ -130,8 +149,13 @@ describe('findPyPyVersion', () => {
   let spyWriteExactPyPyVersionFile: jest.SpyInstance;
   let spyCacheDir: jest.SpyInstance;
   let spyChmodSync: jest.SpyInstance;
+  let spyCoreAddPath: jest.SpyInstance;
+  let spyCoreExportVariable: jest.SpyInstance;
+  const env = process.env;
 
   beforeEach(() => {
+    jest.resetModules();
+    process.env = {...env};
     tcFind = jest.spyOn(tc, 'find');
     tcFind.mockImplementation((tool: string, version: string) => {
       const semverRange = new semver.Range(version);
@@ -183,32 +207,46 @@ describe('findPyPyVersion', () => {
 
     spyExistsSync = jest.spyOn(fs, 'existsSync');
     spyExistsSync.mockReturnValue(true);
+
+    spyCoreAddPath = jest.spyOn(core, 'addPath');
+
+    spyCoreExportVariable = jest.spyOn(core, 'exportVariable');
   });
 
   afterEach(() => {
     jest.resetAllMocks();
     jest.clearAllMocks();
     jest.restoreAllMocks();
+    process.env = env;
   });
 
   it('found PyPy in toolcache', async () => {
     await expect(
-      finder.findPyPyVersion('pypy-3.6-v7.3.x', architecture)
+      finder.findPyPyVersion('pypy-3.6-v7.3.x', architecture, true)
     ).resolves.toEqual({
       resolvedPythonVersion: '3.6.12',
       resolvedPyPyVersion: '7.3.3'
     });
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
   });
 
   it('throw on invalid input format', async () => {
     await expect(
-      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture)
+      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true)
     ).rejects.toThrow();
   });
 
   it('throw on invalid input format pypy3.7-7.3.x', async () => {
     await expect(
-      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture)
+      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true)
     ).rejects.toThrow();
   });
 
@@ -220,16 +258,42 @@ describe('findPyPyVersion', () => {
     spyChmodSync = jest.spyOn(fs, 'chmodSync');
     spyChmodSync.mockImplementation(() => undefined);
     await expect(
-      finder.findPyPyVersion('pypy-3.7-v7.3.x', architecture)
+      finder.findPyPyVersion('pypy-3.7-v7.3.x', architecture, true)
     ).resolves.toEqual({
       resolvedPythonVersion: '3.7.9',
       resolvedPyPyVersion: '7.3.3'
     });
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('found and install successfully without environment update', async () => {
+    spyCacheDir = jest.spyOn(tc, 'cacheDir');
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'PyPy', '3.7.7', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findPyPyVersion('pypy-3.7-v7.3.x', architecture, false)
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.7.9',
+      resolvedPyPyVersion: '7.3.3'
+    });
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
   });
 
   it('throw if release is not found', async () => {
     await expect(
-      finder.findPyPyVersion('pypy-3.7-v7.5.x', architecture)
+      finder.findPyPyVersion('pypy-3.7-v7.5.x', architecture, true)
     ).rejects.toThrowError(
       `PyPy version 3.7 (v7.5.x) with arch ${architecture} not found`
     );

__tests__/finder.test.ts

@@ -19,15 +19,29 @@ process.env['RUNNER_TOOL_CACHE'] = toolDir;
 process.env['RUNNER_TEMP'] = tempDir;
 
 import * as tc from '@actions/tool-cache';
+import * as core from '@actions/core';
 import * as finder from '../src/find-python';
 import * as installer from '../src/install-python';
 
 const manifestData = require('./data/versions-manifest.json');
 
 describe('Finder tests', () => {
+  let spyCoreAddPath: jest.SpyInstance;
+  let spyCoreExportVariable: jest.SpyInstance;
+  const env = process.env;
+
+  beforeEach(() => {
+    jest.resetModules();
+    process.env = {...env};
+    spyCoreAddPath = jest.spyOn(core, 'addPath');
+    spyCoreExportVariable = jest.spyOn(core, 'exportVariable');
+  });
+
   afterEach(() => {
     jest.resetAllMocks();
     jest.clearAllMocks();
+    jest.restoreAllMocks();
+    process.env = env;
   });
 
   it('Finds Python if it is installed', async () => {
@@ -35,7 +49,26 @@ describe('Finder tests', () => {
     await io.mkdirP(pythonDir);
     fs.writeFileSync(`${pythonDir}.complete`, 'hello');
     // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
-    await finder.findPythonVersion('3.x', 'x64');
+    await finder.useCpythonVersion('3.x', 'x64', true);
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('Finds Python if it is installed without environment update', async () => {
+    const pythonDir: string = path.join(toolDir, 'Python', '3.0.0', 'x64');
+    await io.mkdirP(pythonDir);
+    fs.writeFileSync(`${pythonDir}.complete`, 'hello');
+    // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
+    await finder.useCpythonVersion('3.x', 'x64', false);
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
   });
 
   it('Finds stable Python version if it is not installed, but exists in the manifest', async () => {
@@ -52,7 +85,16 @@ describe('Finder tests', () => {
       fs.writeFileSync(`${pythonDir}.complete`, 'hello');
     });
     // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
-    await finder.findPythonVersion('1.2.3', 'x64');
+    await finder.useCpythonVersion('1.2.3', 'x64', true);
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
   });
 
   it('Finds pre-release Python version in the manifest', async () => {
@@ -74,25 +116,28 @@ describe('Finder tests', () => {
       fs.writeFileSync(`${pythonDir}.complete`, 'hello');
     });
     // This will throw if it doesn't find it in the manifest (because no such version exists)
-    await finder.findPythonVersion('1.2.3-beta.2', 'x64');
+    await finder.useCpythonVersion('1.2.3-beta.2', 'x64', true);
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
   });
 
   it('Errors if Python is not installed', async () => {
     // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
     let thrown = false;
     try {
-      await finder.findPythonVersion('3.300000', 'x64');
+      await finder.useCpythonVersion('3.300000', 'x64', true);
     } catch {
       thrown = true;
     }
     expect(thrown).toBeTruthy();
-  });
-
-  it('Finds PyPy if it is installed', async () => {
-    const pythonDir: string = path.join(toolDir, 'PyPy', '2.0.0', 'x64');
-    await io.mkdirP(pythonDir);
-    fs.writeFileSync(`${pythonDir}.complete`, 'hello');
-    // This will throw if it doesn't find it in the cache (because no such version exists)
-    await finder.findPythonVersion('pypy2', 'x64');
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
   });
 });

__tests__/utils.test.ts

@@ -1,8 +1,14 @@
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
 import {
   validateVersion,
-  validatePythonVersionFormatForPyPy
+  validatePythonVersionFormatForPyPy,
+  isCacheFeatureAvailable
 } from '../src/utils';
 
+jest.mock('@actions/cache');
+jest.mock('@actions/core');
+
 describe('validatePythonVersionFormatForPyPy', () => {
   it.each([
     ['3.6', true],
@@ -32,3 +38,39 @@ describe('validateVersion', () => {
     expect(validateVersion(input)).toEqual(expected);
   });
 });
+
+describe('isCacheFeatureAvailable', () => {
+  it('isCacheFeatureAvailable disabled on GHES', () => {
+    jest.spyOn(cache, 'isFeatureAvailable').mockImplementation(() => false);
+    try {
+      process.env['GITHUB_SERVER_URL'] = 'http://example.com';
+      isCacheFeatureAvailable();
+    } catch (error) {
+      expect(error).toHaveProperty(
+        'message',
+        'Caching is only supported on GHES version >= 3.5. If you are on a version >= 3.5, please check with your GHES admin if the Actions cache service is enabled or not.'
+      );
+    } finally {
+      delete process.env['GITHUB_SERVER_URL'];
+    }
+  });
+
+  it('isCacheFeatureAvailable disabled on dotcom', () => {
+    jest.spyOn(cache, 'isFeatureAvailable').mockImplementation(() => false);
+    const infoMock = jest.spyOn(core, 'warning');
+    const message =
+      'The runner was not able to contact the cache service. Caching will be skipped';
+    try {
+      process.env['GITHUB_SERVER_URL'] = 'http://github.com';
+      expect(isCacheFeatureAvailable()).toBe(false);
+      expect(infoMock).toHaveBeenCalledWith(message);
+    } finally {
+      delete process.env['GITHUB_SERVER_URL'];
+    }
+  });
+
+  it('isCacheFeatureAvailable is enabled', () => {
+    jest.spyOn(cache, 'isFeatureAvailable').mockImplementation(() => true);
+    expect(isCacheFeatureAvailable()).toBe(true);
+  });
+});

action.yml

@@ -4,10 +4,11 @@ description: 'Set up a specific version of Python and add the command-line tools
 author: 'GitHub'
 inputs:
   python-version:
-    description: "Version range or exact version of a Python version to use, using SemVer's version range syntax."
-    default: '3.x'
+    description: "Version range or exact version of Python to use, using SemVer's version range syntax. Reads from .python-version if unset."
+  python-version-file:
+    description: "File containing the Python version to use. Example: .python-version"
   cache:
-    description: 'Used to specify a package manager for caching in the default directory. Supported values: pip, pipenv.'
+    description: 'Used to specify a package manager for caching in the default directory. Supported values: pip, pipenv, poetry.'
     required: false
   architecture:
     description: 'The target architecture (x86, x64) of the Python interpreter.'
@@ -16,11 +17,18 @@ inputs:
     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.'
+  update-environment:
+    description: 'Set this option if you want the action to update environment variables.'
+    default: true
 outputs:
   python-version:
     description: "The installed python version. Useful when given a version range as input."
+  cache-hit:
+    description: 'A boolean value to indicate a cache entry was found'
+  python-path:
+    description: "The absolute path to the Python executable."
 runs:
-  using: 'node12'
+  using: 'node16'
   main: 'dist/setup/index.js'
   post: 'dist/cache-save/index.js'
   post-if: success()

docs/adrs/0000-caching-dependencies.md

@@ -0,0 +1,93 @@
+## 0. Caching dependencies
+
+Date: 2021-10-01
+
+Status: Accepted
+
+## Context
+
+`actions/setup-python` is one the most popular python's action in GitHub Actions. A lot of customers use it in conjunction with `actions/cache` to speed up dependencies installation.
+See more examples on proper usage in [actions/cache documentation](https://github.com/actions/cache/blob/main/examples.md#python---pip).
+
+## Goals & Anti-Goals
+
+Integration of caching functionality into `actions/setup-python` action will bring the following benefits for action users:
+ - Decrease the entry threshold for using the cache for Python dependencies and simplify initial configuration
+ - Simplify YAML pipelines by reducing the need for additional steps to enable caching
+ - More users will use caching for Python so users will have faster builds!
+
+We will add support for Pip and Pipenv dependency caching.
+
+We won't pursue the goal to provide wide customization of caching in the scope of `actions/setup-python` action. The purpose of this integration is to cover ~90% of basic use-cases. If users need flexible customization, we will advise them to use `actions/cache` directly.
+
+## Decision
+
+ - Add a `cache` input parameter to `actions/setup-python`. For now the input will accept the following values:
+    - pip - enable caching for pip dependencies
+    - pipenv - enable caching for pipenv dependencies
+    - '' - disable caching (default value)
+ - Cache feature will be disabled by default to make sure that we don't break existing customers.
+ - Action will try to search dependencies files (requirements.txt for pip and Pipfile.lock for pipenv) in the repository root (or relative to the repository root, if patterns are used) and throw error if no one is found.
+ - The hash of found file will be used as part of cache key (the same approach like actions/cache recommends)
+ - The following cache key will be used for pip: `setup-python-${{ runner.os }}-pip-${{ hashFiles('<package-file-path>') }}`
+ - The following cache key will be used for pipenv: `setup-python-${{ runner.os }}-python-${{ python-version }}-pipenv-${{ hashFiles('<package-file-path>') }}`. We add the python version to the cache key because the created virtualenv folder with the project name contains a copy of the python binary as a symlink to paths like `/opt/hostedtoolcache/Python/3.7.11`, so the cache can be fetched with a wrong python version. See details in the related [pull request](https://github.com/actions/cache/pull/607) in the actions/cache.
+ - Action will save the packages global cache:
+    - Pip (retrieved via pip cache dir). The command is available With pip 20.1 or later. We always update pip during installation, that is why this command should be available.
+    - Pipenv (default cache paths):
+        - ~/.local/share/virtualenvs (macOS)
+        - ~/.virtualenvs (Windows)
+        - ~/.local/share/virtualenvs (Ubuntu)
+ - Add a `cache-dependency-path` input parameter to `actions/setup-python`. The new input will accept an array or regex of dependency files. The field will accept a path (relative to the repository root) to dependency files. If the provided path contains wildcards, the action will search all matching files and calculate a common hash like the `${{ hashFiles('**/requirements-dev.txt') }}` YAML construction does
+
+## Example of real use-cases
+
+ - Pip package manager
+
+```
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
+  with:
+    python-version: 3.9
+    cache: pip
+```
+
+ - Pipenv package manager
+
+```
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
+  with:
+    python-version: 3.9
+    cache: pipenv
+```
+- With `cache-dependency-path`
+
+```
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
+  with:
+    python-version: 3.9
+    cache: pip
+    cache-dependency-path: |
+        **/requirements-dev.txt
+        **/requirements-test.txt
+        **/requirements.txt
+```
+
+
+```
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-python@v4
+  with:
+    python-version: 3.9
+    cache: pip
+    cache-dependency-path: **/requirements-dev.txt
+```
+
+## Release process
+
+As soon as the functionality is implemented, we will release a minor update of the action. No need to bump the major version since there are no breaking changes for existing users. After that, we will update [starter-workflows](https://github.com/actions/starter-workflows/blob/main/ci/python-app.yml) and [GitHub Action documentation](https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#caching-dependencies).

package.json

@@ -1,15 +1,15 @@
 {
   "name": "setup-python",
-  "version": "2.2.2",
+  "version": "4.0.0",
   "private": true,
   "description": "Setup python action",
   "main": "dist/index.js",
   "scripts": {
-    "build": "tsc",
+    "build": "ncc build -o dist/setup src/setup-python.ts && ncc build -o dist/cache-save src/cache-save.ts",
     "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"
+    "test": "jest --coverage"
   },
   "repository": {
     "type": "git",
@@ -23,8 +23,8 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "^1.0.7",
-    "@actions/core": "^1.2.3",
+    "@actions/cache": "^3.0.0",
+    "@actions/core": "^1.7.0",
     "@actions/exec": "^1.1.0",
     "@actions/glob": "^0.2.0",
     "@actions/io": "^1.0.2",
@@ -33,15 +33,15 @@
   },
   "devDependencies": {
     "@types/jest": "^27.0.2",
-    "@types/node": "^12.20.36",
+    "@types/node": "^16.11.25",
     "@types/semver": "^7.1.0",
-    "@zeit/ncc": "^0.22.0",
+    "@vercel/ncc": "^0.33.4",
     "husky": "^7.0.2",
     "jest": "^27.2.5",
     "jest-circus": "^27.2.5",
     "prettier": "^2.0.2",
     "ts-jest": "^27.0.5",
-    "typescript": "^3.8.3"
+    "typescript": "^4.2.3"
   },
   "husky": {
     "skipCI": true,

src/cache-distributions/cache-distributor.ts

@@ -41,12 +41,17 @@ abstract class CacheDistributor {
       restoreKey
     );
 
+    this.handleMatchResult(matchedKey, primaryKey);
+  }
+
+  public handleMatchResult(matchedKey: string | undefined, primaryKey: string) {
     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`);
     }
+    core.setOutput('cache-hit', matchedKey === primaryKey);
   }
 }
 

src/cache-distributions/cache-factory.ts

@@ -1,9 +1,11 @@
 import PipCache from './pip-cache';
 import PipenvCache from './pipenv-cache';
+import PoetryCache from './poetry-cache';
 
 export enum PackageManagers {
   Pip = 'pip',
-  Pipenv = 'pipenv'
+  Pipenv = 'pipenv',
+  Poetry = 'poetry'
 }
 
 export function getCacheDistributor(
@@ -13,9 +15,11 @@ export function getCacheDistributor(
 ) {
   switch (packageManager) {
     case PackageManagers.Pip:
-      return new PipCache(cacheDependencyPath);
+      return new PipCache(pythonVersion, cacheDependencyPath);
     case PackageManagers.Pipenv:
       return new PipenvCache(pythonVersion, cacheDependencyPath);
+    case PackageManagers.Poetry:
+      return new PoetryCache(pythonVersion, cacheDependencyPath);
     default:
       throw new Error(`Caching for '${packageManager}' is not supported`);
   }

src/cache-distributions/pip-cache.ts

@@ -1,21 +1,42 @@
 import * as glob from '@actions/glob';
 import * as core from '@actions/core';
 import * as exec from '@actions/exec';
-
+import * as child_process from 'child_process';
+import utils from 'util';
 import * as path from 'path';
 import os from 'os';
 
 import CacheDistributor from './cache-distributor';
+import {IS_WINDOWS} from '../utils';
 
 class PipCache extends CacheDistributor {
-  constructor(cacheDependencyPath: string = '**/requirements.txt') {
+  constructor(
+    private pythonVersion: string,
+    cacheDependencyPath: string = '**/requirements.txt'
+  ) {
     super('pip', cacheDependencyPath);
   }
 
   protected async getCacheGlobalDirectories() {
-    const {stdout, stderr, exitCode} = await exec.getExecOutput(
-      'pip cache dir'
-    );
+    let exitCode = 1;
+    let stdout = '';
+    let stderr = '';
+
+    // Add temporary fix for Windows
+    // On windows it is necessary to execute through an exec
+    // because the getExecOutput gives a non zero code or writes to stderr for pip 22.0.2,
+    // or spawn must be started with the shell option enabled for getExecOutput
+    // Related issue: https://github.com/actions/setup-python/issues/328
+    if (IS_WINDOWS) {
+      const execPromisify = utils.promisify(child_process.exec);
+      ({stdout: stdout, stderr: stderr} = await execPromisify('pip cache dir'));
+    } else {
+      ({
+        stdout: stdout,
+        stderr: stderr,
+        exitCode: exitCode
+      } = await exec.getExecOutput('pip cache dir'));
+    }
 
     if (exitCode && stderr) {
       throw new Error(
@@ -36,8 +57,8 @@ class PipCache extends CacheDistributor {
 
   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']}-${this.packageManager}`;
+    const primaryKey = `${this.CACHE_KEY_PREFIX}-${process.env['RUNNER_OS']}-python-${this.pythonVersion}-${this.packageManager}-${hash}`;
+    const restoreKey = `${this.CACHE_KEY_PREFIX}-${process.env['RUNNER_OS']}-python-${this.pythonVersion}-${this.packageManager}`;
 
     return {
       primaryKey,

src/cache-distributions/poetry-cache.ts

@@ -0,0 +1,76 @@
+import * as glob from '@actions/glob';
+import * as os from 'os';
+import * as path from 'path';
+import * as exec from '@actions/exec';
+
+import CacheDistributor from './cache-distributor';
+
+class PoetryCache extends CacheDistributor {
+  constructor(
+    private pythonVersion: string,
+    protected patterns: string = '**/poetry.lock'
+  ) {
+    super('poetry', patterns);
+  }
+
+  protected async getCacheGlobalDirectories() {
+    const poetryConfig = await this.getPoetryConfiguration();
+
+    const cacheDir = poetryConfig['cache-dir'];
+    const virtualenvsPath = poetryConfig['virtualenvs.path'].replace(
+      '{cache-dir}',
+      cacheDir
+    );
+
+    const paths = [virtualenvsPath];
+
+    if (poetryConfig['virtualenvs.in-project'] === true) {
+      paths.push(path.join(process.cwd(), '.venv'));
+    }
+
+    return paths;
+  }
+
+  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}-${hash}`;
+    const restoreKey = undefined;
+    return {
+      primaryKey,
+      restoreKey
+    };
+  }
+
+  private async getPoetryConfiguration() {
+    const {stdout, stderr, exitCode} = await exec.getExecOutput('poetry', [
+      'config',
+      '--list'
+    ]);
+
+    if (exitCode && stderr) {
+      throw new Error(
+        'Could not get cache folder path for poetry package manager'
+      );
+    }
+
+    const lines = stdout.trim().split('\n');
+
+    const config: any = {};
+
+    for (let line of lines) {
+      line = line.replace(/#.*$/gm, '');
+
+      const [key, value] = line.split('=').map(part => part.trim());
+
+      config[key] = JSON.parse(value);
+    }
+
+    return config as {
+      'cache-dir': string;
+      'virtualenvs.in-project': boolean;
+      'virtualenvs.path': string;
+    };
+  }
+}
+
+export default PoetryCache;

src/cache-save.ts

@@ -43,17 +43,11 @@ async function saveCache(packageManager: string) {
     return;
   }
 
-  try {
-    await cache.saveCache(cachePaths, primaryKey);
+  const cacheId = await cache.saveCache(cachePaths, primaryKey);
+  if (cacheId == -1) {
+    return;
+  }
   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[]) {

src/find-pypy.ts

@@ -20,7 +20,8 @@ interface IPyPyVersionSpec {
 
 export async function findPyPyVersion(
   versionSpec: string,
-  architecture: string
+  architecture: string,
+  updateEnvironment: boolean
 ): Promise<{resolvedPyPyVersion: string; resolvedPythonVersion: string}> {
   let resolvedPyPyVersion = '';
   let resolvedPythonVersion = '';
@@ -48,10 +49,26 @@ export async function findPyPyVersion(
 
   const pipDir = IS_WINDOWS ? 'Scripts' : 'bin';
   const _binDir = path.join(installDir, pipDir);
+  const binaryExtension = IS_WINDOWS ? '.exe' : '';
+  const pythonPath = path.join(
+    IS_WINDOWS ? installDir : _binDir,
+    `python${binaryExtension}`
+  );
   const pythonLocation = pypyInstall.getPyPyBinaryPath(installDir);
-  core.exportVariable('pythonLocation', pythonLocation);
+  if (updateEnvironment) {
+    core.exportVariable('pythonLocation', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython.html#module:FindPython
+    core.exportVariable('Python_ROOT_DIR', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython2.html#module:FindPython2
+    core.exportVariable('Python2_ROOT_DIR', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython3.html#module:FindPython3
+    core.exportVariable('Python3_ROOT_DIR', installDir);
+    core.exportVariable('PKG_CONFIG_PATH', pythonLocation + '/lib/pkgconfig');
     core.addPath(pythonLocation);
     core.addPath(_binDir);
+  }
+  core.setOutput('python-version', 'pypy' + resolvedPyPyVersion.trim());
+  core.setOutput('python-path', pythonPath);
 
   return {resolvedPyPyVersion, resolvedPythonVersion};
 }
@@ -96,9 +113,14 @@ export function findPyPyToolCache(
 export function parsePyPyVersion(versionSpec: string): IPyPyVersionSpec {
   const versions = versionSpec.split('-').filter(item => !!item);
 
+  if (/^(pypy)(.+)/.test(versions[0])) {
+    let pythonVersion = versions[0].replace('pypy', '');
+    versions.splice(0, 1, 'pypy', pythonVersion);
+  }
+
   if (versions.length < 2 || versions[0] != 'pypy') {
     throw new Error(
-      "Invalid 'version' property for PyPy. PyPy version should be specified as 'pypy-<python-version>'. See README for examples and documentation."
+      "Invalid 'version' property for PyPy. PyPy version should be specified as 'pypy<python-version>' or 'pypy-<python-version>'. See README for examples and documentation."
     );
   }
 

src/find-python.ts

@@ -30,54 +30,10 @@ function binDir(installDir: string): string {
   }
 }
 
-// Note on the tool cache layout for PyPy:
-// PyPy has its own versioning scheme that doesn't follow the Python versioning scheme.
-// A particular version of PyPy may contain one or more versions of the Python interpreter.
-// For example, PyPy 7.0 contains Python 2.7, 3.5, and 3.6-alpha.
-// We only care about the Python version, so we don't use the PyPy version for the tool cache.
-function usePyPy(
-  majorVersion: '2' | '3.6',
-  architecture: string
-): InstalledVersion {
-  const findPyPy = tc.find.bind(undefined, 'PyPy', majorVersion);
-  let installDir: string | null = findPyPy(architecture);
-
-  if (!installDir && IS_WINDOWS) {
-    // PyPy only precompiles binaries for x86, but the architecture parameter defaults to x64.
-    // On our Windows virtual environments, we only install an x86 version.
-    // Fall back to x86.
-    installDir = findPyPy('x86');
-  }
-
-  if (!installDir) {
-    // PyPy not installed in $(Agent.ToolsDirectory)
-    throw new Error(`PyPy ${majorVersion} not found`);
-  }
-
-  // For PyPy, Windows uses 'bin', not 'Scripts'.
-  const _binDir = path.join(installDir, 'bin');
-
-  // On Linux and macOS, the Python interpreter is in 'bin'.
-  // On Windows, it is in the installation root.
-  const pythonLocation = IS_WINDOWS ? installDir : _binDir;
-  core.exportVariable('pythonLocation', pythonLocation);
-
-  core.addPath(installDir);
-  core.addPath(_binDir);
-  // Starting from PyPy 7.3.1, the folder that is used for pip and anything that pip installs should be "Scripts" on Windows.
-  if (IS_WINDOWS) {
-    core.addPath(path.join(installDir, 'Scripts'));
-  }
-
-  const impl = 'pypy' + majorVersion.toString();
-  core.setOutput('python-version', impl);
-
-  return {impl: impl, version: versionFromPath(installDir)};
-}
-
-async function useCpythonVersion(
+export async function useCpythonVersion(
   version: string,
-  architecture: string
+  architecture: string,
+  updateEnvironment: boolean
 ): Promise<InstalledVersion> {
   const desugaredVersionSpec = desugarDevVersion(version);
   const semanticVersionSpec = pythonVersionToSemantic(desugaredVersionSpec);
@@ -114,7 +70,23 @@ async function useCpythonVersion(
     );
   }
 
+  const _binDir = binDir(installDir);
+  const binaryExtension = IS_WINDOWS ? '.exe' : '';
+  const pythonPath = path.join(
+    IS_WINDOWS ? installDir : _binDir,
+    `python${binaryExtension}`
+  );
+  if (updateEnvironment) {
     core.exportVariable('pythonLocation', installDir);
+    core.exportVariable('PKG_CONFIG_PATH', installDir + '/lib/pkgconfig');
+    core.exportVariable('pythonLocation', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython.html#module:FindPython
+    core.exportVariable('Python_ROOT_DIR', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython2.html#module:FindPython2
+    core.exportVariable('Python2_ROOT_DIR', installDir);
+    // https://cmake.org/cmake/help/latest/module/FindPython3.html#module:FindPython3
+    core.exportVariable('Python3_ROOT_DIR', installDir);
+    core.exportVariable('PKG_CONFIG_PATH', installDir + '/lib/pkgconfig');
 
     if (IS_LINUX) {
       const libPath = process.env.LD_LIBRARY_PATH
@@ -126,9 +98,8 @@ async function useCpythonVersion(
         core.exportVariable('LD_LIBRARY_PATH', pyLibPath + libPath);
       }
     }
-
     core.addPath(installDir);
-  core.addPath(binDir(installDir));
+    core.addPath(_binDir);
 
     if (IS_WINDOWS) {
       // Add --user directory
@@ -147,21 +118,19 @@ async function useCpythonVersion(
       core.addPath(userScriptsDir);
     }
     // On Linux and macOS, pip will create the --user directory and add it to PATH as needed.
+  }
 
   const installed = versionFromPath(installDir);
   core.setOutput('python-version', installed);
+  core.setOutput('python-path', pythonPath);
 
   return {impl: 'CPython', version: installed};
 }
 
-/** Convert versions like `3.8-dev` to a version like `>= 3.8.0-a0`. */
+/** Convert versions like `3.8-dev` to a version like `~3.8.0-0`. */
 function desugarDevVersion(versionSpec: string) {
-  if (versionSpec.endsWith('-dev')) {
-    const versionRoot = versionSpec.slice(0, -'-dev'.length);
-    return `>= ${versionRoot}.0-a0`;
-  } else {
-    return versionSpec;
-  }
+  const devVersion = /^(\d+)\.(\d+)-dev$/;
+  return versionSpec.replace(devVersion, '~$1.$2.0-0');
 }
 
 /** Extracts python version from install path from hosted tool cache as described in README.md */
@@ -186,18 +155,3 @@ export function pythonVersionToSemantic(versionSpec: string) {
   const prereleaseVersion = /(\d+\.\d+\.\d+)((?:a|b|rc)\d*)/g;
   return versionSpec.replace(prereleaseVersion, '$1-$2');
 }
-
-export async function findPythonVersion(
-  version: string,
-  architecture: string
-): Promise<InstalledVersion> {
-  switch (version.toUpperCase()) {
-    case 'PYPY2':
-      return usePyPy('2', architecture);
-    case 'PYPY3':
-      // keep pypy3 pointing to 3.6 for backward compatibility
-      return usePyPy('3.6', architecture);
-    default:
-      return await useCpythonVersion(version, architecture);
-  }
-}

src/install-pypy.ts

@@ -98,7 +98,9 @@ async function createPyPySymlink(
 ) {
   const version = semver.coerce(pythonVersion)!;
   const pythonBinaryPostfix = semver.major(version);
+  const pythonMinor = semver.minor(version);
   const pypyBinaryPostfix = pythonBinaryPostfix === 2 ? '' : '3';
+  const pypyMajorMinorBinaryPostfix = `${pythonBinaryPostfix}.${pythonMinor}`;
   let binaryExtension = IS_WINDOWS ? '.exe' : '';
 
   core.info('Creating symlinks...');
@@ -115,6 +117,13 @@ async function createPyPySymlink(
     `python${binaryExtension}`,
     true
   );
+
+  createSymlinkInFolder(
+    pypyBinaryPath,
+    `pypy${pypyBinaryPostfix}${binaryExtension}`,
+    `pypy${pypyMajorMinorBinaryPostfix}${binaryExtension}`,
+    true
+  );
 }
 
 async function installPip(pythonLocation: string) {

src/setup-python.ts

@@ -3,17 +3,15 @@ import * as finder from './find-python';
 import * as finderPyPy from './find-pypy';
 import * as path from 'path';
 import * as os from 'os';
+import fs from 'fs';
 import {getCacheDistributor} from './cache-distributions/cache-factory';
-import {isGhes} from './utils';
+import {isCacheFeatureAvailable, IS_LINUX, IS_WINDOWS} from './utils';
 
 function isPyPyVersion(versionSpec: string) {
-  return versionSpec.startsWith('pypy-');
+  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(
@@ -24,28 +22,89 @@ async function cacheDependencies(cache: string, pythonVersion: string) {
   await cacheDistributor.restoreCache();
 }
 
+function resolveVersionInput(): string {
+  let version = core.getInput('python-version');
+  let versionFile = core.getInput('python-version-file');
+
+  if (version && versionFile) {
+    core.warning(
+      'Both python-version and python-version-file inputs are specified, only python-version will be used.'
+    );
+  }
+
+  if (version) {
+    return version;
+  }
+
+  if (versionFile) {
+    if (!fs.existsSync(versionFile)) {
+      logWarning(
+        `The specified python version file at: ${versionFile} doesn't exist. Attempting to find .python-version file.`
+      );
+      versionFile = '.python-version';
+      if (!fs.existsSync(versionFile)) {
+        throw new Error(`The ${versionFile} doesn't exist.`);
+      }
+    }
+
+    version = fs.readFileSync(versionFile, 'utf8');
+    core.info(`Resolved ${versionFile} as ${version}`);
+
+    return version;
+  }
+
+  core.warning(
+    "Neither 'python-version' nor 'python-version-file' inputs were supplied."
+  );
+
+  return version;
+}
+
 async function run() {
+  // According to the README windows binaries do not require to be installed
+  // in the specific location, but Mac and Linux do
+  if (!IS_WINDOWS && !process.env.AGENT_TOOLSDIRECTORY?.trim()) {
+    if (IS_LINUX) process.env['AGENT_TOOLSDIRECTORY'] = '/opt/hostedtoolcache';
+    else process.env['AGENT_TOOLSDIRECTORY'] = '/Users/runner/hostedtoolcache';
+    process.env['RUNNER_TOOL_CACHE'] = process.env['AGENT_TOOLSDIRECTORY'];
+  }
+  core.debug(
+    `Python is expected to be installed into RUNNER_TOOL_CACHE=${process.env['RUNNER_TOOL_CACHE']}`
+  );
   try {
-    const version = core.getInput('python-version');
+    const version = resolveVersionInput();
     if (version) {
       let pythonVersion: string;
       const arch: string = core.getInput('architecture') || os.arch();
+      const updateEnvironment = core.getBooleanInput('update-environment');
       if (isPyPyVersion(version)) {
-        const installed = await finderPyPy.findPyPyVersion(version, arch);
+        const installed = await finderPyPy.findPyPyVersion(
+          version,
+          arch,
+          updateEnvironment
+        );
         pythonVersion = `${installed.resolvedPyPyVersion}-${installed.resolvedPythonVersion}`;
         core.info(
-          `Successfully setup PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`
+          `Successfully set up PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`
         );
       } else {
-        const installed = await finder.findPythonVersion(version, arch);
+        const installed = await finder.useCpythonVersion(
+          version,
+          arch,
+          updateEnvironment
+        );
         pythonVersion = installed.version;
-        core.info(`Successfully setup ${installed.impl} (${pythonVersion})`);
+        core.info(`Successfully set up ${installed.impl} (${pythonVersion})`);
       }
 
       const cache = core.getInput('cache');
-      if (cache) {
+      if (cache && isCacheFeatureAvailable()) {
         await cacheDependencies(cache, pythonVersion);
       }
+    } else {
+      core.warning(
+        'The `python-version` input is not set.  The version of Python currently in `PATH` will be used.'
+      );
     }
     const matchersPath = path.join(__dirname, '../..', '.github');
     core.info(`##[add-matcher]${path.join(matchersPath, 'python.json')}`);
@@ -54,4 +113,9 @@ async function run() {
   }
 }
 
+export function logWarning(message: string): void {
+  const warningPrefix = '[warning]';
+  core.info(`${warningPrefix}${message}`);
+}
+
 run();

src/utils.ts

@@ -1,3 +1,5 @@
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
 import fs from 'fs';
 import * as path from 'path';
 import * as semver from 'semver';
@@ -99,3 +101,21 @@ export function isGhes(): boolean {
   );
   return ghUrl.hostname.toUpperCase() !== 'GITHUB.COM';
 }
+
+export function isCacheFeatureAvailable(): boolean {
+  if (!cache.isFeatureAvailable()) {
+    if (isGhes()) {
+      throw new Error(
+        'Caching is only supported on GHES version >= 3.5. If you are on a version >= 3.5, please check with your GHES admin if the Actions cache service is enabled or not.'
+      );
+    } else {
+      core.warning(
+        'The runner was not able to contact the cache service. Caching will be skipped'
+      );
+    }
+
+    return false;
+  }
+
+  return true;
+}