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Out-of-repository file remove error

Subject: Out-of-repository file remove error

## tl;dr

3 messages between Jul 19, 2008 and Jul 19, 2008.

replies: 2people: 2as markdown or json

Nick Andrew· Jul 19, 2008, 08:23 UTC · lore

git rm seems to have a problem with removing a file from a repository when the repository .git and working tree are not in the current directory. It leaves an index.lock file.

Here's a script to show the bug:

mkdir Bugtest cd Bugtest git init date > newfile git add newfile git commit -m 'Added' newfile cd .. git --git-dir=Bugtest/.git --work-tree=Bugtest rm newfile ls -l Bugtest/.git/index.lock

Output:
Initialized empty Git repository in .../Bugtest/.git/
Created initial commit 43dec15: Added
 1 files changed, 1 insertions(+), 0 deletions(-)
 create mode 100644 newfile
rm 'newfile'
fatal: Unable to write new index file
-rw-r--r-- 1 nick nick 32 Jul 19 18:20 Bugtest/.git/index.lock
I tested on:

git version 1.5.6.2 git version 1.5.6.3.440.g9d8f

Nick.
Olivier Marin· Jul 19, 2008, 16:21 UTC · re: Nick Andrew · lore

[PATCH] builtin-rm: fix index lock file path

From: Olivier Marin <dkr@freesurf.fr>

When hold_locked_index() is called with a relative git_dir and you are outside the work tree, the lock file become relative to the current directory. So when later setup_work_tree() change the current directory it breaks lock file path and commit_locked_index() fails.

This patch move index locking code after setup_work_tree() call to make lock file relative to the working tree as it should be and add a test case.

Noticed by Nick Andrew.
Signed-off-by: Olivier Marin <dkr@freesurf.fr>
---
 builtin-rm.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/builtin-rm.c b/builtin-rm.c
index 56454ec..ee8247b 100644
--- a/builtin-rm.c
+++ b/builtin-rm.c
@@ -146,11 +146,6 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
 
 	git_config(git_default_config, NULL);
 
-	newfd = hold_locked_index(&lock_file, 1);
-
-	if (read_cache() < 0)
-		die("index file corrupt");
-
 	argc = parse_options(argc, argv, builtin_rm_options, builtin_rm_usage, 0);
 	if (!argc)
 		usage_with_options(builtin_rm_usage, builtin_rm_options);
@@ -158,6 +153,11 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
 	if (!index_only)
 		setup_work_tree();
 
+	newfd = hold_locked_index(&lock_file, 1);
+
+	if (read_cache() < 0)
+		die("index file corrupt");
+
 	pathspec = get_pathspec(prefix, argv);
 	seen = NULL;
 	for (i = 0; pathspec[i] ; i++)
-- 
1.5.6.3.440.g489d7
Olivier Marin· Jul 19, 2008, 16:24 UTC · re: Olivier Marin · lore

[PATCH V2] builtin-rm: fix index lock file path

From: Olivier Marin <dkr@freesurf.fr>

When hold_locked_index() is called with a relative git_dir and you are outside the work tree, the lock file become relative to the current directory. So when later setup_work_tree() change the current directory it breaks lock file path and commit_locked_index() fails.

This patch move index locking code after setup_work_tree() call to make lock file relative to the working tree as it should be and add a test case.

Noticed by Nick Andrew.
Signed-off-by: Olivier Marin <dkr@freesurf.fr>
---
 The same with the test case!
 builtin-rm.c  |   10 +++++-----
 t/t3600-rm.sh |   12 ++++++++++++
 2 files changed, 17 insertions(+), 5 deletions(-)
diff --git a/builtin-rm.c b/builtin-rm.c
index 56454ec..ee8247b 100644
--- a/builtin-rm.c
+++ b/builtin-rm.c
@@ -146,11 +146,6 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
 
 	git_config(git_default_config, NULL);
 
-	newfd = hold_locked_index(&lock_file, 1);
-
-	if (read_cache() < 0)
-		die("index file corrupt");
-
 	argc = parse_options(argc, argv, builtin_rm_options, builtin_rm_usage, 0);
 	if (!argc)
 		usage_with_options(builtin_rm_usage, builtin_rm_options);
@@ -158,6 +153,11 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
 	if (!index_only)
 		setup_work_tree();
 
+	newfd = hold_locked_index(&lock_file, 1);
+
+	if (read_cache() < 0)
+		die("index file corrupt");
+
 	pathspec = get_pathspec(prefix, argv);
 	seen = NULL;
 	for (i = 0; pathspec[i] ; i++)
diff --git a/t/t3600-rm.sh b/t/t3600-rm.sh
index 316775e..79c06ad 100755
--- a/t/t3600-rm.sh
+++ b/t/t3600-rm.sh
@@ -217,4 +217,16 @@ test_expect_success 'Remove nonexistent file returns nonzero exit status' '
 	test_must_fail git rm nonexistent
 '
 
+test_expect_success 'Call "rm" from outside the work tree' '
+	mkdir repo &&
+	cd repo &&
+	git init &&
+	echo something > somefile &&
+	git add somefile &&
+	git commit -m "add a file" &&
+	(cd .. &&
+	 git --git-dir=repo/.git --work-tree=repo rm somefile) &&
+	test_must_fail git ls-files --error-unmatch somefile
+'
+
 test_done
-- 
1.5.6.3.440.g489d7

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