feat: add auto archiving action (#238)

* feat: add auto archiving action

---------

Co-authored-by: p.delpy@dkfz-heidelberg.de <p.delpy@dkfz-heidelberg.de>
Co-authored-by: Martin Lablans <6804500+lablans@users.noreply.github.com>

.github/scripts/rename_inactive_branches.py

@@ -0,0 +1,39 @@
+import os
+import requests
+from datetime import datetime, timedelta
+
+# Configuration
+GITHUB_TOKEN = os.getenv('GITHUB_TOKEN')
+REPO = 'samply/bridgehead'
+HEADERS = {'Authorization': f'token {GITHUB_TOKEN}', 'Accept': 'application/vnd.github.v3+json'}
+API_URL = f'https://api.github.com/repos/{REPO}/branches'
+INACTIVE_DAYS = 365
+CUTOFF_DATE = datetime.now() - timedelta(days=INACTIVE_DAYS)
+
+# Fetch all branches
+def get_branches():
+    response = requests.get(API_URL, headers=HEADERS)
+    response.raise_for_status()
+    return response.json() if response.status_code == 200 else []
+
+# Rename inactive branches
+def rename_branch(old_name, new_name):
+    rename_url = f'https://api.github.com/repos/{REPO}/branches/{old_name}/rename'
+    response = requests.post(rename_url, json={'new_name': new_name}, headers=HEADERS)
+    response.raise_for_status()
+    print(f"Renamed branch {old_name} to {new_name}" if response.status_code == 201 else f"Failed to rename {old_name}: {response.status_code}")
+
+# Check if the branch is inactive
+def is_inactive(commit_url):
+    last_commit_date = requests.get(commit_url, headers=HEADERS).json()['commit']['committer']['date']
+    return datetime.strptime(last_commit_date, '%Y-%m-%dT%H:%M:%SZ') < CUTOFF_DATE
+
+# Rename inactive branches
+def main():
+    for branch in get_branches():
+        if is_inactive(branch['commit']['url']):
+            #rename_branch(branch['name'], f"archived/{branch['name']}")
+            print(f"[LOG] Branch '{branch['name']}' is inactive and would be renamed to 'archived/{branch['name']}'")
+
+if __name__ == "__main__":
+    main()

.github/workflows/rename-inactive-branches.yml

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+name: Cleanup - Rename Inactive Branches
+
+on:
+  schedule:
+    - cron: '0 0 * * 0'  # Runs every Sunday at midnight
+
+jobs:
+  archive-stale-branches:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.x'
+
+      - name: Install Libraries
+        run: pip install requests
+
+      - name: Run Script to Rename Inactive Branches
+        run: |
+          python .github/scripts/rename_inactive_branches.py
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}