half-baked DYI solution for separate action to check for duplicated b…

…uilds

.github/actions/check-previous-builds/action.yaml

@@ -0,0 +1,44 @@
+name: check for successful workflow runs for the same commit
+description: uses the GitHub REST API to check whether a successful workflow run for the same commit already exists
+
+inputs:
+  githubToken:
+    description: "github token"
+    required: true
+    # TODO this also needs the id/name of the actual workflow
+
+runs:
+  using: "composite"
+  steps:
+    - name: list successful builds
+      id: list_successful_builds
+      uses: octokit/[email protected]
+      with:
+        # https://docs.github.com/en/rest/actions/workflow-runs
+        route: GET /repos/${{ github.repository }}/actions/runs?head_sha=${{ github.sha }}&status=success
+      env:
+        GITHUB_TOKEN: ${{ inputs.githubToken }}
+
+    # TODO remove this debug output
+    - run: "echo successful builds: '${{ steps.list_successful_builds.outputs.data }}'"
+
+    - name: process Github API response
+      id: successful_builds_for_same_commit_exist
+      run: |
+        export number_of_successful_builds=${{ fromJson(steps.list_successful_builds.outputs.data).total_count }}
+        if [[ $number_of_successful_builds -gt 0 ]]; then
+          echo "result=true" >> $GITHUB_OUTPUT
+        else
+          echo "result=false" >> $GITHUB_OUTPUT
+        fi
+
+    # TODO remove this debug output
+    - run: "echo has successful builds: '${{ steps.successful_builds_for_same_commit_exist.outputs.result }}'"
+
+    # TODO write to output
+
+outputs:
+  successful-build-exists:
+    description: "whether a successful workflow run exists for the same commit"
+    value: ${{ steps.successful_builds_for_same_commit_exist.outputs.result }}
+

.github/workflows/ci.yaml

@@ -54,7 +54,7 @@ jobs:
       - run: "echo has successful builds: '${{ steps.successful_builds_for_same_commit_exist.outputs.result }}'"
 
 
-  separate_step:
+  separate_job:
     runs-on: ubuntu-latest
     steps:
       - run: "echo separate step, has successful builds: '${{ steps.successful_builds_for_same_commit_exist.outputs.result }}'"