ci: add workflows to automate merging of human-actor created PRs (#94)

Co-authored-by: Jonas Lagoni <[email protected]>
Co-authored-by: Sergio Moya <[email protected]>

.github/workflows/automerge-for-humans-add-ready-to-merge-or-do-not-merge-label.yml

@@ -0,0 +1,51 @@
+#This workflow is centrally managed in https://github.com/asyncapi/.github/
+#Don't make changes to this file in this repo as they will be overwritten with changes made to the same file in above mentioned repo
+
+#Purpose of this workflow is to enable anyone to label PR with `ready-to-merge` and `do-not-merge` labels to get stuff merged or blocked from merging
+name: Add ready-to-merge or do-not-merge label # if proper comment added
+
+on: issue_comment
+
+jobs:
+  parse-comment-and-add-ready: # for handling cases when you want to mark as ready to merge
+    if: github.event.issue.pull_request && github.event.issue.state != 'closed'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check if PR is draft # such info is not available in the context of issue_comment event
+        uses: actions/github-script@v5
+        id: checkDraft
+        with:
+          result-encoding: string
+          script: |
+            const prDetailsUrl = context.payload.issue.pull_request.url;
+            const response = await github.request(prDetailsUrl);
+            return response.data.draft;
+      - name: Add label
+        if: steps.checkDraft.outputs.result == 'false' && (contains(github.event.comment.body, '/ready-to-merge') || contains(github.event.comment.body, '/rtm' ))
+        uses: actions/github-script@v5
+        with:
+          github-token: ${{ secrets.GH_TOKEN }}
+          script: |
+            github.rest.issues.addLabels({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              labels: ['ready-to-merge']
+            }) 
+
+  parse-comment-and-add-block: # for handling cases when you want to mark as do-not-merge
+    if: github.event.issue.pull_request && github.event.issue.state != 'closed'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Add label
+        if: contains(github.event.comment.body, '/do-not-merge') || contains(github.event.comment.body, '/dnm' )
+        uses: actions/github-script@v5
+        with:
+          github-token: ${{ secrets.GH_TOKEN }}
+          script: |
+            github.rest.issues.addLabels({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              labels: ['do-not-merge']
+            }) 

.github/workflows/automerge-for-humans-merging.yml

@@ -0,0 +1,32 @@
+#This workflow is centrally managed in https://github.com/asyncapi/.github/
+#Don't make changes to this file in this repo as they will be overwritten with changes made to the same file in above mentioned repo
+
+#Purpose of this workflow is to allow people to merge PR without a need of maintainer doing it. If all checks are in place (including maintainers approval) - JUST MERGE IT!
+name: Automerge For Humans
+
+on:
+  pull_request_target:
+    types:
+      - labeled
+      - unlabeled
+      - synchronize
+      - opened
+      - edited
+      - ready_for_review
+      - reopened
+      - unlocked
+
+jobs:
+  automerge-for-humans:
+    if: github.event.pull_request.draft == false && (github.event.pull_request.user.login != 'asyncapi-bot' || github.event.pull_request.user.login != 'dependabot[bot]' || github.event.pull_request.user.login != 'dependabot-preview[bot]') #it runs only if PR actor is not a bot, at least not a bot that we know
+    runs-on: ubuntu-latest
+    steps:
+      - name: Automerge PR
+        uses: pascalgn/[email protected]
+        env:
+          GITHUB_TOKEN: "${{ secrets.GH_TOKEN }}"
+          MERGE_LABELS: "!do-not-merge,ready-to-merge"
+          MERGE_METHOD: "squash"
+          MERGE_COMMIT_MESSAGE: "pull-request-title"
+          MERGE_RETRIES: "20"
+          MERGE_RETRY_SLEEP: "30000"

.github/workflows/automerge-for-humans-remove-ready-to-merge-label-on-edit.yml

@@ -0,0 +1,28 @@
+#This workflow is centrally managed in https://github.com/asyncapi/.github/
+#Don't make changes to this file in this repo as they will be overwritten with changes made to the same file in above mentioned repo
+
+# Defence from evil contributor that after adding `ready-to-merge` all suddenly makes evil commit or evil change in PR title
+# Label is removed once above action is detected
+name: Remove ready-to-merge label
+
+on:
+  pull_request_target:
+    types:
+      - synchronize
+      - edited
+
+jobs:
+  remove-ready-label:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Remove label
+        uses: actions/github-script@v5
+        with:
+          github-token: ${{ secrets.GH_TOKEN }}
+          script: |
+            github.rest.issues.removeLabel({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              name: 'ready-to-merge'
+            }) 

.github/workflows/automerge.yml

@@ -21,7 +21,7 @@ on:
 jobs:
 
   autoapprove:
-    if: (github.event.pull_request.draft == false) && (github.actor == 'asyncapi-bot' || github.actor == 'dependabot[bot]' || github.actor == 'dependabot-preview[bot]') && !contains(github.event.pull_request.labels.*.name, 'released')
+    if: github.event.pull_request.draft == false && (github.event.pull_request.user.login == 'asyncapi-bot' || github.event.pull_request.user.login == 'dependabot[bot]' || github.event.pull_request.user.login == 'dependabot-preview[bot]') && !contains(github.event.pull_request.labels.*.name, 'released')
     runs-on: ubuntu-latest
     steps:
       - name: Autoapproving
@@ -44,11 +44,11 @@ jobs:
 
   automerge:
     needs: [autoapprove]
+    if: github.event.pull_request.user.login == 'asyncapi-bot' || github.event.pull_request.user.login == 'dependabot[bot]' || github.event.pull_request.user.login == 'dependabot-preview[bot]'
     runs-on: ubuntu-latest
     steps:
       - name: Automerging
         uses: pascalgn/[email protected]
-        if: github.actor == 'asyncapi-bot' || github.actor == 'dependabot[bot]' || github.actor == 'dependabot-preview[bot]'
         env:
           GITHUB_TOKEN: "${{ secrets.GH_TOKEN }}"
           GITHUB_LOGIN: asyncapi-bot

.github/workflows/help-command.yml

@@ -0,0 +1,25 @@
+#This workflow is centrally managed in https://github.com/asyncapi/.github/
+#Don't make changes to this file in this repo as they will be overwritten with changes made to the same file in above mentioned repo
+
+name: Create help comment
+
+on: [issue_comment]
+
+jobs:
+  create_help_comment:
+    if: github.event.issue.pull_request
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions-ecosystem/action-create-comment@v1
+        if: contains(github.event.comment.body, '/help')
+        with:
+          github_token: ${{ secrets.GH_TOKEN }}
+          body: |
+            Hello, @${{ github.actor }}! 👋🏼 
+
+            I'm Genie from the magic lamp. Looks like somebody needs a hand! 🆘 
+
+            At the moment the following comments are supported in pull requests:
+
+            - `/ready-to-merge` or `/rtm` - This comment will trigger automerge of PR in case all required checks are green, approvals in place and do-not-merge label is not added
+            - `/do-not-merge` or `/dnm` - This comment will block automerging event if all conditions are met and ready-to-merge label is added