Thread (1 message) 1 message, 1 author, 2016-06-15

Re: git-rm -n leaves .git/index.lock if not allowed to finish

From: Junio C Hamano <hidden>
Date: 2016-06-15 22:45:48

Miklos Vajna [off-list ref] writes:
quoted hunk
On Fri, Dec 19, 2008 at 04:02:48AM +0800, jidanni@jidanni.org wrote:
quoted
Bug: if git-rm -n is not allowed to write all it wants to write, it
will leave a .git/index.lock file:
# git-rm -n -r . 2>&1|sed q
error: '.etckeeper' has changes staged in the index
# git-rm -n -r . 2>&1|sed q
fatal: unable to create '.git/index.lock': File exists
Can't reproduce:
diff --git a/t/t3600-rm.sh b/t/t3600-rm.sh
index b7d46e5..1581691 100755
--- a/t/t3600-rm.sh
+++ b/t/t3600-rm.sh
@@ -251,4 +251,12 @@ test_expect_success 'refresh index before checking if it is up-to-date' '
 
 '
 
+test_expect_success 'test from jidanni' '
+
+	git reset --hard &&
+	git rm -n -r . 2>&1|sed q &&
+	git rm -n -r . 2>&1|sed q
+
+'
+
 test_done
passes here just fine. Yes, there are multiple files in the repo.
I think you need to have tons of files to cause the pipe buffer to fill up
with the "rm 'frotz'" output, triggering a SIGPIPE to kill the upstream
process of the pipe.

Would this patch help?

 lockfile.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git i/lockfile.c w/lockfile.c
index 6d75608..8589155 100644
--- i/lockfile.c
+++ w/lockfile.c
@@ -140,6 +140,7 @@ static int lock_file(struct lock_file *lk, const char *path, int flags)
 			signal(SIGHUP, remove_lock_file_on_signal);
 			signal(SIGTERM, remove_lock_file_on_signal);
 			signal(SIGQUIT, remove_lock_file_on_signal);
+			signal(SIGPIPE, remove_lock_file_on_signal);
 			atexit(remove_lock_file);
 		}
 		lk->owner = getpid();
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