Merge pull request DSpace#2406 from tdonohue/update_actions

Add GitHub action to automatically create a port PR (based on label) & minor bug fixes

Author: tdonohue

.github/workflows/label_merge_conflicts.yml

@@ -25,6 +25,8 @@ jobs:
       # See: https://github.com/prince-chrismc/label-merge-conflicts-action
       - name: Auto-label PRs with merge conflicts
         uses: prince-chrismc/label-merge-conflicts-action@v3
+        # Ignore any failures -- may occur (randomly?) for older, outdated PRs.
+        continue-on-error: true
         # Add "merge conflict" label if a merge conflict is detected. Remove it when resolved.
         # Note, the authentication token is created automatically
         # See: https://docs.github.com/en/actions/configuring-and-managing-workflows/authenticating-with-the-github_token

.github/workflows/port_merged_pull_request.yml

@@ -0,0 +1,44 @@
+# This workflow will attempt to port a merged pull request to
+# the branch specified in a "port to" label (if exists)
+name: Port merged Pull Request
+
+# Only run for merged PRs against the "main" or maintenance branches
+# We allow this to run for `pull_request_target` so that github secrets are available
+# (This is required when the PR comes from a forked repo)
+on:
+  pull_request_target:
+    types: [ closed ]
+    branches:
+      - main
+      - 'dspace-**'
+
+permissions:
+  contents: write      # so action can add comments
+  pull-requests: write # so action can create pull requests
+
+jobs:
+  port_pr:
+    runs-on: ubuntu-latest
+    # Don't run on closed *unmerged* pull requests
+    if: github.event.pull_request.merged
+    steps:
+      # Checkout code
+      - uses: actions/checkout@v3
+      # Port PR to other branch (ONLY if labeled with "port to")
+      # See https://github.com/korthout/backport-action
+      - name: Create backport pull requests
+        uses: korthout/backport-action@v1
+        with:
+          # Trigger based on a "port to [branch]" label on PR
+          # (This label must specify the branch name to port to)
+          label_pattern: '^port to ([^ ]+)$'
+          # Title to add to the (newly created) port PR
+          pull_title: '[Port ${target_branch}] ${pull_title}'
+          # Description to add to the (newly created) port PR
+          pull_description: 'Port of #${pull_number} by @${pull_author} to `${target_branch}`.'
+          # Copy all labels from original PR to (newly created) port PR
+          # NOTE: The labels matching 'label_pattern' are automatically excluded
+          copy_labels_pattern: '.*'
+          # Use a personal access token (PAT) to create PR as 'dspace-bot' user.
+          # A PAT is required in order for the new PR to trigger its own actions (for CI checks)
+          github_token: ${{ secrets.PR_PORT_TOKEN }}