Add script to check Firefox release candidates and notify via Discord

.github/workflows/check-candidate-release.yml

@@ -13,13 +13,9 @@ jobs:
       - name: Check out repository
         uses: actions/checkout@v2
 
-      - name: Fetch JSON Response
-        run: |
-          curl -s "https://hg.mozilla.org/releases/mozilla-release/json-tags" > rc-response.json
-
       - name: Check for any updates
         env:
           DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK_URL }}
           DISCORD_PING_IDS: ${{ secrets.DISCORD_PING_IDS }}
         run: |
-          python3 scripts/check-rc-response.py || true
+          python3 scripts/check_rc_response.py || true

scripts/check_rc_response.py

@@ -0,0 +1,87 @@
+import json
+import os
+import sys
+import requests
+from typing import Optional
+
+METADATA_FILENAME = "surfer.json"
+TAGS_API_URL = "https://hg.mozilla.org/releases/mozilla-release/json-tags"
+
+def get_current_version() -> Optional[str]:
+  """Retrieve the current version from the metadata file."""
+  try:
+    with open(METADATA_FILENAME) as f:
+      metadata = json.load(f)
+      return metadata["version"]["candidate"]
+  except (FileNotFoundError, json.JSONDecodeError) as e:
+    print(f"Error reading current version: {e}")
+    return None
+
+def get_repo_data() -> Optional[str]:
+  """Retrieve the repository data from the API."""
+  try:
+    print(f"Retrieving repository data from {TAGS_API_URL}")
+    response = requests.get(TAGS_API_URL)
+    response.raise_for_status()  # Raise an error for bad responses
+    return response.json()
+  except requests.RequestException as e:
+    print(f"Error retrieving repository data: {e}")
+    return None
+
+def get_rc_response() -> Optional[str]:
+  """Get the release candidate response from the response file."""
+  try:
+    data = get_repo_data()
+    for tag_dict in data["tags"]:
+      tag = tag_dict["tag"]
+      if (tag.startswith("FIREFOX") and tag.endswith("_BUILD1")
+              and "ESR" not in tag and "b" not in tag):
+        return (tag.replace("FIREFOX_", "").replace("_BUILD1",
+                                                    "").replace("_", "."))
+  except (FileNotFoundError, json.JSONDecodeError) as e:
+    print(f"Error reading RC response: {e}")
+  return None
+
+
+def get_pings() -> str:
+  """Build a string of Discord user IDs for mentions."""
+  ping_ids = os.getenv("DISCORD_PING_IDS", "")
+  return " ".join(f"<@{ping.strip()}>" for ping in ping_ids.split(",")
+                  if ping.strip())
+
+
+def send_webhook(rc: str) -> None:
+  """Send a message to the Discord webhook."""
+  text = f"||{get_pings()}|| New Firefox RC version is available: **{rc}**"
+  webhook_url = os.getenv("DISCORD_WEBHOOK_URL")
+
+  if webhook_url:
+    message = {
+        "content": text,
+        "username": "Firefox RC Checker",
+    }
+    try:
+      response = requests.post(webhook_url, json=message)
+      response.raise_for_status()  # Raise an error for bad responses
+    except requests.RequestException as e:
+      print(f"Error sending webhook: {e}")
+  else:
+    print("Webhook URL not set.")
+
+def rc_should_be_updated(rc_response: str, current_version: str) -> bool:
+  return rc_response and rc_response != current_version
+
+def main() -> int:
+  current_version = get_current_version()
+  rc_response = get_rc_response()
+
+  if rc_should_be_updated(rc_response, current_version):
+    send_webhook(rc_response)
+    return 0
+
+  print(f"Current version: {current_version}, RC version: {rc_response}")
+  return 1
+
+
+if __name__ == "__main__":
+  sys.exit(main())