I have a GitHub Actions job where I check whether to continue with deployment by checking the contents of the commit message. Deployment happens only when the commit message is exactly this: chore(release): publish.

name: Test & Deploy Packages
on:
  push:
    branches:
      - master
jobs:

check_if_deploy:

runs-on: ubuntu-latest

outputs:

shouldContinue: ${{ steps.decideContinue.outputs.shouldContinue }}
steps:
- name: Checkout source code
  uses: actions/checkout@v2

- name: Get GitHub context
  env:
    GITHUB_CONTEXT: ${{ toJson(github) }}
  run: echo "$GITHUB_CONTEXT"

- name: Decide whether to continue based on commit message
  id: decideContinue
  run: |
    commitMessage=$(git log --oneline --format=%B -n 1 ${{ github.event.after }} | head -n 1)
    echo $commitMessage
    if [[$commitMessage == "chore(release): publish"]]; then
      echo "::set-output name=shouldContinue::true"
      echo "publish commit, continuing with deployment"
    else
      echo "::set-output name=shouldContinue::false"
      echo "not a publish commit, skipping deployment"
    fi

My next job checks whether needs.check_if_deploy.outputs.shouldContinue is true and continues or skips based on that condition. This seems to be working fine.

However, a command not found error is always printed during execution of the check_if_deploy job. Line 13 in the below screenshot says /home/runner/work/_temp/ba7b09fc-462a-4755-ad83-a52a8c725c55.sh: line 3: [[chore:: command not found:

Screenshot 2020-07-18 10.24.53875×469 54.5 KB

I understand this has something to do with the echo on line 3 executing the contents of the variable instead of just printing it but don’t know how to resolve it.