From 82cefe2b42300224ad3c148f8b1a569757cc617a Mon Sep 17 00:00:00 2001
From: Roman Perepelitsa <roman.perepelitsa@gmail.com>
Date: Thu, 22 Oct 2020 09:42:04 +0200
Subject: [PATCH] git commit -m 'fix a bug that prevents revwalking in shallow
 repos

- https://github.com/romkatv/gitstatus/issues/179
- https://github.com/romkatv/powerlevel10k/issues/787
---
 src/revwalk.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/revwalk.c b/src/revwalk.c
index 1efb938bd3e..1536ef49360 100644
--- a/src/revwalk.c
+++ b/src/revwalk.c
@@ -373,9 +373,11 @@ static int add_parents_to_list(git_revwalk *walk, git_commit_list_node *commit,
 			git_commit_list_node *p = commit->parents[i];
 			p->uninteresting = 1;
 
-			/* git does it gently here, but we don't like missing objects */
-			if ((error = git_commit_list_parse(walk, p)) < 0)
-				return error;
+			if ((error = git_commit_list_parse(walk, p)) < 0) {
+				if (error != GIT_ENOTFOUND) return error;
+				/* this triggers on shallow repositories (e.g., cloned with --depth=0) */
+				error = 0;
+			}
 
 			if (p->parents)
 				mark_parents_uninteresting(p);