Create main.yml

.github/workflows/main.yml

@@ -0,0 +1,92 @@
+# Script is (loosely) based on two references:
+# * https://stackoverflow.com/questions/23793062/can-forks-be-synced-automatically-in-github
+# * https://stackoverflow.com/questions/69918635/how-to-keep-all-branches-and-tags-in-sync-in-a-fork-or-mirror-repo
+# [!] Note: Do not do a force push to not overwrite the .github/workflow/main.yml file.
+
+# We are not using a predefined action (eg. [1]) to not go through the hassle of having to
+# manage Github Personal Access Tokens for deephdc.
+# [1]: https://github.com/repo-sync/github-sync
+
+
+name: Sync fork with upstream
+on:
+  schedule:
+     # run at max frequency
+    - cron:  '* * * * *'
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Sync fork with upstream
+        run: |
+          
+          #########################################################
+          # YOU SHOULD UPDATE THIS LINE
+          #########################################################
+
+          UPSTREAM_REPO=https://github.com/ai4eosc-psnc/integrated_plant_protection
+
+          #########################################################
+
+          # Bot config
+          git config user.name 'github-actions[bot]'
+          git config user.email 'github-actions[bot]@users.noreply.github.com'
+                    
+          # Add remote
+          git remote add upstream $UPSTREAM_REPO
+          git fetch upstream
+
+          # Keep track of branch names
+          origin_branches=$(git branch -r | grep -v 'HEAD' | grep 'origin/' | cut -f 2 -d '/')
+          upstream_branches=$(git branch -r | grep 'upstream/' | cut -f 2 -d '/')
+          
+          old_branches=$(comm -13 <(printf '%s\n' "${upstream_branches[@]}" | LC_ALL=C sort) <(printf '%s\n' "${origin_branches[@]}" | LC_ALL=C sort))
+          new_branches=$(comm -13 <(printf '%s\n' "${origin_branches[@]}" | LC_ALL=C sort) <(printf '%s\n' "${upstream_branches[@]}" | LC_ALL=C sort))
+          existing_branches=$(comm -13 <(printf '%s\n' "${new_branches[@]}" | LC_ALL=C sort) <(printf '%s\n' "${upstream_branches[@]}" | LC_ALL=C sort))
+          
+           # Delete old branches from origin
+          echo "# Deleting old branches ..."
+          for tmp_branch in $old_branches; do
+            echo "## Processing $tmp_branch ..."
+            git push origin --delete $tmp_branch
+          done
+          
+          # Create origin branches for new upstream branches
+          echo "# Creating new branches ..."
+          for tmp_branch in $new_branches; do
+            echo "## Processing $tmp_branch ..."
+            git checkout -b $tmp_branch upstream/$tmp_branch
+            git push origin
+          done
+          
+          # Merge changes from upstream to origin for existing branches
+          echo "# Merging existing branches ..."
+          git config --add checkout.defaultRemote origin
+          for tmp_branch in $existing_branches; do
+            echo "## Processing $tmp_branch ..."
+            git checkout $tmp_branch
+            git merge --no-edit upstream/$tmp_branch
+            git push origin
+          done
+          
+          # Sync tags
+          git tag -d $(git tag -l)
+          git fetch upstream --tags --quiet
+          git push origin --tags --force
+
+       # Keep the workflow running
+       # Github automatically disbales a workflow is the repo hasn't seen activity in the last 60 days.
+       # This steps will make a dummy commit after 50 days of inactivity to avoid the disabling.
+      - uses: gautamkrishnar/keepalive-workflow@v1