From bcb6879199948c21f1ebef9afc2a63f433309c00 Mon Sep 17 00:00:00 2001
From: Adeeb Shihadeh <adeebshihadeh@gmail.com>
Date: Thu, 25 Mar 2021 16:16:12 -0700
Subject: [PATCH] updated: log git diff on overlay init (#20476)

* updated: log git diff on overlay init

* add git diff param

* params
---
 common/params_pyx.pyx | 1 +
 selfdrive/updated.py  | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/common/params_pyx.pyx b/common/params_pyx.pyx
index 07ef33a22..2add3a077 100755
--- a/common/params_pyx.pyx
+++ b/common/params_pyx.pyx
@@ -28,6 +28,7 @@ keys = {
   b"DisableUpdates": [TxType.PERSISTENT],
   b"DoUninstall": [TxType.CLEAR_ON_MANAGER_START],
   b"DongleId": [TxType.PERSISTENT],
+  b"GitDiff": [TxType.PERSISTENT],
   b"GitBranch": [TxType.PERSISTENT],
   b"GitCommit": [TxType.PERSISTENT],
   b"GitRemote": [TxType.PERSISTENT],
diff --git a/selfdrive/updated.py b/selfdrive/updated.py
index bc08a8a34..035b9a967 100755
--- a/selfdrive/updated.py
+++ b/selfdrive/updated.py
@@ -164,7 +164,8 @@ def init_overlay() -> None:
 
   cloudlog.info("preparing new safe staging area")
 
-  Params().put("UpdateAvailable", "0")
+  params = Params()
+  params.put("UpdateAvailable", "0")
   set_consistent_flag(False)
   dismount_overlay()
   if os.path.isdir(STAGING_ROOT):
@@ -196,6 +197,10 @@ def init_overlay() -> None:
   else:
     run(mount_cmd)
 
+  git_diff = run(["git", "diff"], OVERLAY_MERGED, low_priority=True)
+  params.put("GitDiff", git_diff)
+  cloudlog.info(f"git diff output:\n{git_diff}")
+
 
 def finalize_update() -> None:
   """Take the current OverlayFS merged view and finalize a copy outside of