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Actions: Variable substitution in commented lines

See original GitHub issue

If there are any variables in the commented lines get substituted in the logs of action workflow.

To Reproduce Steps to reproduce the behavior:

  1. Write Any simple action work flow
  2. In a job write following step
 - name: Build App
    run: |
          #cd ${{ github.workspace }}
  1. Navigate to the logs of the step and expand the command. You can see the following
#cd /home/user/actions-runner/_work/cd-demo-app/cd-demo-app

Screenshot: image

Expected behavior As the line was commented, it is expected not to substitute the variable. But the variable is getting substituted in the logs as shown in the snapshot

Runner Version and Platform

Runner version - 2.279.0 Running on Linux - x64

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Comments:5 (3 by maintainers)

github_iconTop GitHub Comments

TingluoHuangcommented, Nov 16, 2021

The runner doesn’t know it’s a comment for a given shell. The runner treat all inputs as string.

TingluoHuangcommented, Nov 15, 2021

@girishenoy2003 ${{ github.workspace }} is not a variable, it’s an expression syntax for GitHub Actions, it will get evaluated and expanded before executing any script.

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