[PATCH 0/2] Ensure git ls-tree exits with a non-zero exit code if read_tree_recursive fails.

While working with a damaged repository, I noticed that git ls-tree was reporting an error 
even though it set a zero exit code. 

This patch uses the return code from read_tree_recursive instead.

Jon Seymour (2):
  Add a test to check that git ls-tree sets non-zero exit code on
    error.
  Ensure git ls-tree exits with a non-zero exit code if
    read_tree_recursive fails.

 builtin/ls-tree.c               |    6 +++---
 t/t3103-ls-tree-missing-tree.sh |   19 +++++++++++++++++++
 2 files changed, 22 insertions(+), 3 deletions(-)
 create mode 100755 t/t3103-ls-tree-missing-tree.sh

-- 
1.7.6.347.g6a5a9c

Fails at this commit, fixed by subsequent commit.

Signed-off-by: Jon Seymour <redacted>
---
 t/t3103-ls-tree-missing-tree.sh |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)
 create mode 100755 t/t3103-ls-tree-missing-tree.sh

diff --git a/t/t3103-ls-tree-missing-tree.sh b/t/t3103-ls-tree-missing-tree.sh
new file mode 100755
index 0000000..365ac07
--- /dev/null
+++ b/t/t3103-ls-tree-missing-tree.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+test_description='ls-tree exits with non-zero status if it also reports an error'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+	mkdir a &&
+	touch a/one &&
+	git add a/one &&
+	git commit -m test
+'
+
+test_expect_success 'ls-tree fails with non-zero exit code on broken tree' '
+	rm -f .git/objects/5f/cffbd6e4c5c5b8d81f5e9314b20e338e3ffff5 &&
+	test_must_fail git ls-tree -r HEAD
+'
+
+test_done

-- 
1.7.6.347.g6a5a9c

In the case of a corrupt repository, git ls-tree may report an error but
presently it exits with a code of 0.

This change uses the return code of read_tree_recursive instead.

Signed-off-by: Jon Seymour <redacted>
---
 builtin/ls-tree.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index f08c5b0..6d6c992 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c

@@ -120,7 +120,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
 {
 	unsigned char sha1[20];
 	struct tree *tree;
-	int i, full_tree = 0;
+	int i, full_tree = 0, err;
 	const struct option ls_tree_options[] = {
 		OPT_BIT('d', NULL, &ls_options, "only show trees",
 			LS_TREE_ONLY),

@@ -173,7 +173,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
 	tree = parse_tree_indirect(sha1);
 	if (!tree)
 		die("not a tree object");
-	read_tree_recursive(tree, "", 0, 0, &pathspec, show_tree, NULL);
+	err = read_tree_recursive(tree, "", 0, 0, &pathspec, show_tree, NULL);
 
-	return 0;
+	return err;
 }

-- 
1.7.6.347.g6a5a9c

Am 23.07.2011 14:27, schrieb Jon Seymour:

Fails at this commit, fixed by subsequent commit.

Maybe use "test_expect_failure" here and change that to "test_expect_success"
in the next commit?