feat(buildbot): add buildbot formatter

matrix_webhook/formatters/buildbot.py

@@ -0,0 +1,32 @@
+from datetime import datetime
+
+
+def formatter(data, headers):
+    """Pretty-print a buildbot notification."""
+    buildid = data["buildid"]
+    buildstate = data["state_string"]
+    buildlink = data["url"]
+    reason = data["buildset"]["reason"]
+    project = data["properties"]["project"][0]
+    submittime = datetime.fromtimestamp(data["buildset"]["submitted_at"])
+    if buildstate == "starting":
+        try:
+            data["body"] = (
+                f"###Buildbot job #{buildid} for {project} - {buildstate}\n\n"
+                f"{reason}\n\n"
+                f"**started at** {submittime}\n\n"
+                f"[view details]({buildlink})"
+            )
+        except Exception as error:
+            print(error)
+    elif buildstate == "build successful":
+        try:
+            data["body"] = (
+                f"###Buildbot job #{buildid} for {project} - {buildstate}\n\n"
+                f"**completed at** {datetime.fromtimestamp(data['complete_at'])}\n\n"
+                f"[view details]({buildlink})"
+            )
+        except Exception as error:
+            print(error)
+
+    return data