[PATCH v4 0/2] ls-tree: exit with non-zero status on error

[PATCH v4 0/2] ls-tree: exit with non-zero status on error

[Jon Seymour]

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.

| v2: Amended test per Jens Lehmann's suggestion.
| v3: Generalize name of test script (in response to Junio's comment).
|     Removed unnecessary local variable, per Jens' comment.
| v4: Lexical simplification (Andreas, Junio), 0 or 1 exit code (Nguyen).

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

-- 
1.7.6.347.g6a5a9c

[v4 1/2] Add a test to check that git ls-tree sets non-zero exit code on error.

[Jon Seymour]

Expected to fail at this commit, fixed by subsequent commit.

Additional tests of adhoc or uncategorised nature should be added to this
file.

Improved-by: Jens Lehmann <Jens.Lehmann@web.de>
Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
---
 t/t3103-ls-tree-misc.sh |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+), 0 deletions(-)
 create mode 100755 t/t3103-ls-tree-misc.sh

diff --git a/t/t3103-ls-tree-misc.sh b/t/t3103-ls-tree-misc.sh
new file mode 100755
index 0000000..c9c20f9
--- /dev/null
+++ b/t/t3103-ls-tree-misc.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+test_description='
+Miscellaneous tests for git ls-tree.
+
+	      1. git ls-tree fails in presence of tree damage.
+
+'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+	mkdir a &&
+	touch a/one &&
+	git add a/one &&
+	git commit -m test
+'
+
+test_expect_failure '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.g8394c

[v4 2/2] Ensure git ls-tree exits with a non-zero exit code if read_tree_recursive fails.

[Jon Seymour]

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 sets the exit code to 1, if the read_tree_recursive returns
non-zero and 0 otherwise.

Improved-by: Jens Lehmann <Jens.Lehmann@web.de>
Improved-by: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
Improved-by: Andreas Schwab <schwab@linux-m68k.org>
Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
---
 builtin/ls-tree.c       |    3 +--
 t/t3103-ls-tree-misc.sh |    2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index f08c5b0..b1dcebd 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -173,7 +173,6 @@ 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);
 
-	return 0;
+	return !!read_tree_recursive(tree, "", 0, 0, &pathspec, show_tree, NULL);
 }
diff --git a/t/t3103-ls-tree-misc.sh b/t/t3103-ls-tree-misc.sh
index c9c20f9..09dcf04 100755
--- a/t/t3103-ls-tree-misc.sh
+++ b/t/t3103-ls-tree-misc.sh
@@ -16,7 +16,7 @@ test_expect_success 'setup' '
 	git commit -m test
 '
 
-test_expect_failure 'ls-tree fails with non-zero exit code on broken tree' '
+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
 '
-- 
1.7.6.347.g8394c

Re: [PATCH v4 0/2] ls-tree: exit with non-zero status on error

[Jon Seymour]

On Tue, Jul 26, 2011 at 8:03 AM, Jon Seymour <jon.seymour@gmail.com> wrote:
>
> This patch uses the return code from read_tree_recursive instead.

Sorry, should be:

This change sets the exit code to 1, if the read_tree_recursive returns
non-zero and 0 otherwise.