Conditional job execution for Github actions - github

Question

I would like to conditionally execute a Github Action according to a previous job (Format).
If the code needed to be formatted, I would like to execute the following job (create_commit), otherwise skip it and do nothing.
Unfortunately at the moment the second job never gets triggered, no matter what is the output of the first job.
My action:
name: Format
on: push
jobs:
format:
name: Code formatting in Black
runs-on: ubuntu-latest
outputs:
trigger_commit: ${{ steps.changes_present.outputs.changes_detected }}
steps:
- name: Checkout repository
uses: actions/checkout#v3
- name: Install package
run: pip install 'black[d]'
- name: Run black formatter
run: black .
- name: Check diff for changes
id: changes_present
run: |
outputs=$(git diff)
if ! [ -z "$outputs" ]
then
echo '::set-output name=changes_detected::true'
fi
create_commit:
runs-on: ubuntu-latest <- Job never executed
needs: format
if: needs.format.outputs.changes_detected == true
steps:
- name: Commit
run: |
git config user.name 'github-actions[bot]'
git config user.email 'github-actions[bot]#users.noreply.github.com'
git commit -am "Files updated after formatting"
git push

Answer 1

The output of the format job is named trigger_commit instead of changes_detected. So try this:
if: needs.format.outputs.trigger_commit == `true`
You could use the actionlint to check this error, an online version is available too. See this link .