listener redeploy

deploy/redeploy_listener.py

@@ -1,26 +1,43 @@
-#!/bin/python3
+#!/bin/python3 -u
 
 import time
 import os
+import subprocess
+import sys
+
+INTERVAL_DELAY = 60
+ERROR_DELAY = 60
 
 def main():
+    dry_run = "--dry-run" in sys.argv
+
     deployed_commit_hash = ""
     while True:
+        print("fetching newest commit...")
+
         newest_commit_hash = os.popen("curl -s https://api.github.com/repos/Mercantec-GHC/h4-projekt-gruppe-0-sm/commits/main | jq -r .sha").read()
 
         if not newest_commit_hash:
-            print("error fetching commit hash")
-            time.sleep(60)
+            print("error: could not fetch commit hash", file=sys.stderr)
+            print(f"trying again in {ERROR_DELAY} seconds...", file=sys.stderr)
+            time.sleep(ERROR_DELAY)
             continue
 
         if newest_commit_hash != deployed_commit_hash:
             deployed_commit_hash = newest_commit_hash
-            print("should redeploy")
+            print("new commit found. redeploying...")
+
+            if not dry_run:
+                rcode = subprocess.call(["sh", "./deploy/redeploy.sh"])
+                if rcode == 0:
+                    print("redeployed successfully")
+                else:
+                    print("error: could not redeploy", file=sys.stderr)
         else:
-            print("should not redeploy")
+            print("no new commits")
 
-
-        time.sleep(60)
+        print(f"sleeping for {INTERVAL_DELAY} seconds...")
+        time.sleep(INTERVAL_DELAY)
 
 if __name__ == "__main__":
     main()