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[GH-ISSUE #422] How to determine whether running workflows with act? #293

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opened 2026-03-01 21:42:08 +03:00 by kerem · 5 comments

kerem commented

2026-03-01 21:42:08 +03:00

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Originally created by @theowenyoung on GitHub (Nov 16, 2020).
Original GitHub issue: https://github.com/nektos/act/issues/422

Hi,

I can check if a workflow running in Github Actions by ${{ env.GITHUB_ACTIONS=='true'}}, but act also define env GITHUB_ACTIONS: true, so how to determine whether running workflows with act?

There are some steps that I only want to run with Github, not locally.

Example:

name: Build Site
on:
  workflow_dispatch:
  push:
jobs:
  run:
    runs-on: ubuntu-latest
    name: Run
    steps:
      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v3
        if: env.GITHUB_ACTION=='true'
        with:
          token: ${{ secrets.PERSONAL_TOKEN }}

How to define if condition?

Originally created by @theowenyoung on GitHub (Nov 16, 2020). Original GitHub issue: https://github.com/nektos/act/issues/422 Hi, I can check if a workflow running in Github Actions by `${{ env.GITHUB_ACTIONS=='true'}}`, but act also define env `GITHUB_ACTIONS: true`, so how to determine whether running workflows with act? There are some steps that I only want to run with Github, not locally. Example: ```yaml name: Build Site on: workflow_dispatch: push: jobs: run: runs-on: ubuntu-latest name: Run steps: - name: Create Pull Request uses: peter-evans/create-pull-request@v3 if: env.GITHUB_ACTION=='true' with: token: ${{ secrets.PERSONAL_TOKEN }} ``` How to define `if` condition?

kerem

2026-03-01 21:42:08 +03:00

closed this issue
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kerem commented

2026-03-01 21:42:09 +03:00

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@austinsasko commented on GitHub (Nov 16, 2020):

I think this is something that can have an env var for act specifically. e.g. in the runner context code I can add a line for
env["ACT_LOCAL"] = "true" and some other code where needed (e.g. dist index.js in repo)

Then in the job you can specify
if: env.ACT_LOCAL=='true' and have that job only execute when running from act on your local machine

Would this provide you the functionality you are looking for?

@austinsasko commented on GitHub (Nov 16, 2020): I think this is something that can have an env var for act specifically. e.g. in the runner context code I can add a line for ` env["ACT_LOCAL"] = "true" ` and some other code where needed (e.g. dist index.js in repo) Then in the job you can specify `if: env.ACT_LOCAL=='true'` and have that job only execute when running from `act` on your local machine Would this provide you the functionality you are looking for?

kerem commented

2026-03-01 21:42:09 +03:00

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@theowenyoung commented on GitHub (Nov 16, 2020):

@austinsasko yes, that totally solves my problem..

@theowenyoung commented on GitHub (Nov 16, 2020): @austinsasko yes, that totally solves my problem..

kerem commented

2026-03-01 21:42:09 +03:00

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@torbjornvatn commented on GitHub (Nov 20, 2020):

This is actually solved in #417 which was merged to master yesterday.
It introduces an ACT=true environment variable

@torbjornvatn commented on GitHub (Nov 20, 2020): This is actually solved in #417 which was merged to master yesterday. It introduces an `ACT=true` environment variable

kerem commented

2026-03-01 21:42:09 +03:00

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@MattKiazyk commented on GitHub (Dec 4, 2020):

@torbjornvatn when can we expect a release that has #417 in it?

@MattKiazyk commented on GitHub (Dec 4, 2020): @torbjornvatn when can we expect a release that has #417 in it?

kerem commented

2026-03-01 21:42:09 +03:00

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@github-actions[bot] commented on GitHub (Jan 16, 2021):

Issue is stale and will be closed in 14 days unless there is new activity

@github-actions[bot] commented on GitHub (Jan 16, 2021): Issue is stale and will be closed in 14 days unless there is new activity

kerem referenced this issue

2026-03-01 21:51:02 +03:00

[PR #293] [MERGED] Support running commands in repositories without action.yaml #1405

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