From a9120f2475cc28375c9a9d735061aa9f8a504eeb Mon Sep 17 00:00:00 2001
From: Sebastian Mark <smark@posteo.net>
Date: Mon, 18 Apr 2022 23:31:43 +0200
Subject: [PATCH] FEAT(bin): add get_app_history.py

---
 bin/get_app_history.py | 47 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100755 bin/get_app_history.py

diff --git a/bin/get_app_history.py b/bin/get_app_history.py
new file mode 100755
index 0000000..a80c48b
--- /dev/null
+++ b/bin/get_app_history.py
@@ -0,0 +1,47 @@
+#! /usr/bin/env python
+# -*- encoding: utf-8; py-indent-offset: 4 -*-
+
+# Author: Sebastian Mark
+# CC-BY-SA (https://creativecommons.org/licenses/by-sa/4.0/deed.de)
+# for civil use only
+
+import os
+import sys
+
+from dateutil.parser import parse
+
+import yaml
+
+
+def kubectl(cmd: str) -> str:
+    cmd = f"kubectl -n argocd {cmd}"
+    return os.popen(cmd).read()
+
+
+def get_history(appname: str) -> dict:
+    app = kubectl(f"get applications {appname} -o yaml")
+    app_dict = yaml.safe_load(app)
+    revisions = {}
+    if app_dict:
+        for rev in app_dict["status"]["history"]:
+            revisions[rev["deployedAt"]] = rev["revision"]
+    return revisions
+
+
+def main():
+    try:
+        appname = sys.argv[1]
+    except IndexError:
+        print("Usage: get_app_history.py <application name>", file=sys.stderr)
+        sys.exit(1)
+
+    history = get_history(appname)
+    if len(history):
+        print(f"History for {appname}")
+        for k, v in history.items():
+            date = parse(k).strftime("%Y-%m-%d %H:%M:%S")
+            print(f"{date}: {v}")
+
+
+if __name__ == "__main__":
+    main()