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[PATCH] Remove empty directories when checking out a commit with fewer submodules

From
Peter Collingbourne <peter@pcc.me.uk>
Date
Jan 11, 2010, 02:59 UTC
Message-ID
<1263178794-3140-1-git-send-email-peter@pcc.me.uk>

Change the unlink_entry function to use rmdir to remove submodule directories. Currently we try to use unlink, which will never succeed.

Of course rmdir will only succeed for empty (i.e. not checked out) submodule directories. Behaviour if a submodule is checked out stays essentially the same: print a warning message and keep the submodule directory.

Signed-off-by: Peter Collingbourne <peter@pcc.me.uk>
---
 t/t7400-submodule-basic.sh |    9 +++++++++
 unpack-trees.c             |   12 ++++++++++--
 2 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index a0cc99a..1a4dc5f 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -299,6 +299,15 @@ test_expect_success 'ls-files gracefully handles trailing slash' '
 
 '
 
+test_expect_success 'moving to a commit without submodule does not leave empty dir' '
+	rm -rf init &&
+	mkdir init &&
+	git reset --hard &&
+	git checkout initial &&
+	test ! -d init &&
+	git checkout second
+'
+
 test_expect_success 'submodule <invalid-path> warns' '
 
 	git submodule no-such-submodule 2> output.err &&
diff --git a/unpack-trees.c b/unpack-trees.c
index dd5999c..b69847d 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -61,8 +61,16 @@ static void unlink_entry(struct cache_entry *ce)
 {
 	if (has_symlink_or_noent_leading_path(ce->name, ce_namelen(ce)))
 		return;
-	if (unlink_or_warn(ce->name))
-		return;
+	if (S_ISGITLINK(ce->ce_mode)) {
+		if (rmdir(ce->name)) {
+			warning("unable to rmdir %s: %s",
+				ce->name, strerror(errno));
+			return;
+		}
+	}
+	else
+		if (unlink_or_warn(ce->name))
+			return;
 	schedule_dir_for_removal(ce->name, ce_namelen(ce));
 }
 
-- 
1.6.5
Next: Johannes Schindelin
Message 1 of 5 in “Remove empty directories when checking out a commit with fewer submodules”
  1. Remove empty directories when checking out a commit with fewer submodulesPeter Collingbourne, Jan 11, 2010
  2. Johannes SchindelinJan 11, 2010
  3. Johan HerlandJan 11, 2010
  4. Johannes SchindelinJan 11, 2010
  5. Junio C HamanoJan 11, 2010

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