How to use system environment variable in cache actions path? #27163

evandrocoan · 2020-03-26T05:21:00Z

evandrocoan
Mar 26, 2020

I am trying to access the Windows environment variable ProgramFiles to pass it to the GitHub Cache Action: https://github.com/evandrocoan/TestGithubActions/actions/runs/63543924/workflow#L37

name: CI
on: [push, pull_request]
jobs:

tests:

name: Test ${{ matrix.os }}

runs-on: ${{ matrix.os }}

strategy:

matrix:

os: [ubuntu-latest, macos-latest, windows-latest]

include:

- os: ubuntu-latest

SEP: /

PIP_WHEELS_DIR: ~/.cache/pip

CARGO_INDEX_DIR: ~/.cargo/git

CARGO_REGISTRY_DIR: ~/.cargo/registry
      - os: macos-latest
        SEP: /
        PIP_WHEELS_DIR: ~/Library/Caches/pip
        CARGO_INDEX_DIR: ~/.cargo/git
        CARGO_REGISTRY_DIR: ~/.cargo/registry

      - os: windows-latest
        SEP: \
        PIP_WHEELS_DIR: ~\AppData\Local\pip\Cache
        CARGO_INDEX_DIR: C:\Rust\.cargo\git
        CARGO_REGISTRY_DIR: C:\Rust\.cargo\registry

steps:
  - uses: actions/checkout@v2

  - name: Cache git
    if: matrix.os == 'windows-latest'
    uses: actions/cache@v1
    with:
      path: ${{ env.ProgramFiles }}${{ matrix.SEP }}Git
      key: ${{ runner.os }}-git-${{ hashFiles('**/main.yml') }}-1-

  - run: echo Print something.
  - run: echo On ubuntu-latest
    if: matrix.os == 'ubuntu-latest'

But when it runs, the variable is empty: https://github.com/evandrocoan/TestGithubActions/runs/535518431?check_suite_focus=true#step:9:2

C:\windows\System32\tar.exe -cz -f d:\a\_temp\7e3aad1e-aade-4599-af14-17c2f935a571\cache.tgz -C d:\Git .

How to access system-defined variables?

Answered by Yanjingzhu

Mar 27, 2020

Hi @evandrocoan ,

In default, system environment variable is not included in env context, you could use set-env command to set the value of system ProgramFiles to an job env. And then you it with ${{ env.ProgramFilesPath }} syntax.

Please see my example:

name: CI on: push: paths: - '**/main.yml'

jobs: run_tests: runs-on: windows-latest steps: # env context is empty at the beginning - name: Dump env context env: ENV_CONTEXT: ${{ toJson(env) }} run: write-host "$env:ENV_CONTEXT1" # set system ProgramFiles value to env ProgramFilesPath - name: set env ProgramFiles shell: cmd run: | echo %programfiles% echo ::set-env name=ProgramFilesPath::%programfiles% # check env context again, now inc…

View full answer

Yanjingzhu · 2020-03-27T02:54:18Z

Yanjingzhu
Mar 27, 2020

Hi @evandrocoan ,

In default, system environment variable is not included in env context, you could use set-env command to set the value of system ProgramFiles to an job env. And then you it with ${{ env.ProgramFilesPath }} syntax.

Please see my example:

name: CI
on:

push:

paths:

- '**/main.yml'
jobs:

run_tests:

runs-on: windows-latest

steps:

# env context is empty at the beginning

- name: Dump env context

env:

ENV_CONTEXT: ${{ toJson(env) }}

run: write-host "$env:ENV_CONTEXT1"

# set system ProgramFiles value to env ProgramFilesPath

- name: set env ProgramFiles

shell: cmd

run: |

echo %programfiles%

echo ::set-env name=ProgramFilesPath::%programfiles%

# check env context again, now include ProgramFilesPath

- name: Dump env context 2

env:

ENV_CONTEXT1: ${{ toJson(env) }}

run: write-host "$env:ENV_CONTEXT1"

# Now you can use env.ProgramFilesPath

- name: Cache git

uses: actions/cache@v1

with:

path: ${{ env.ProgramFilesPath }}\Git

key: ${{ runner.os }}-git-${{ hashFiles('**/main.yml') }}-1-

0 replies

thedataking · 2021-01-05T04:31:45Z

thedataking
Jan 5, 2021

@yanjingzhu set-env is now deprecated [0]. Any guidance on how to use an environment variable for caching after this change? Cheers!

[0] GitHub Actions: Deprecating set-env and add-path commands - GitHub Changelog

1 reply

jharris-tc Dec 6, 2022

would also like an update on this

ValentinTrinque · 2023-03-31T15:36:24Z

ValentinTrinque
Mar 31, 2023

This is what I have so far:

name: Test cache

on:
  push:
    branches:
      - develop
  pull_request:
    branches:
      - develop

jobs:
  download-backend:
    name: Download backend dependencies (${{ matrix.os }}, ${{ matrix.arch }})
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os:
          - macos-latest
          - windows-2019
          - ubuntu-latest
        arch:
          - amd64
          - arm64
    env:
      - name: Set up Go 1.19
        uses: actions/setup-go@v4
        with:
          go-version: 1.19

      - name: Add go paths to environment
        shell: bash
        run: |
          echo "GOCACHE=$(go env GOCACHE)" >> $GITHUB_ENV
          echo "GOMODCACHE=$(go env GOMODCACHE)" >> $GITHUB_ENV
          echo "GOBIN=$(go env GOBIN)" >> $GITHUB_ENV

      - name: Verify go modules are cached
        uses: actions/cache@v3
        id: cache-go-modules
        with:
          path: |
            ${{ env.GOCACHE }}
            ${{ env.GOMODCACHE }}
            ${{ env.GOBIN }}
          key: go-modules-cache-${{ runner.os }}-${{ matrix.arch }}-${{ hashFiles('**/go.sum') }}

      - name: Install missing Golang dependencies
        if: steps.cache-go-modules.outputs.cache-hit != 'true'
        run: go mod download

0 replies

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How to use system environment variable in cache actions path? #27163

evandrocoan Mar 26, 2020

Replies: 3 comments · 1 reply

Yanjingzhu Mar 27, 2020

thedataking Jan 5, 2021

jharris-tc Dec 6, 2022

ValentinTrinque Mar 31, 2023

evandrocoan
Mar 26, 2020

Replies: 3 comments 1 reply

Yanjingzhu
Mar 27, 2020

thedataking
Jan 5, 2021

ValentinTrinque
Mar 31, 2023