commit/status -h: show usage even with broken configuration

"git status" and "git commit" read .git/config and .gitmodules before
parsing options, but there is no reason to access a repository at all
when the caller just wanted to know what arguments are accepted.

[jn: rewrote the log message and added test]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/commit.c b/builtin/commit.c
index 66fdd2202495b2893c79b4f92b0fc2e715f5b7bb..0abb4302529d40a342217d5c594d27da63d50876 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1070,6 +1070,9 @@ int cmd_status(int argc, const char **argv, const char *prefix)
                OPT_END(),
        };
 
+       if (argc == 2 && !strcmp(argv[1], "-h"))
+               usage_with_options(builtin_status_usage, builtin_status_options);
+
        if (null_termination && status_format == STATUS_FORMAT_LONG)
                status_format = STATUS_FORMAT_PORCELAIN;
 
@@ -1255,6 +1258,9 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
        int allow_fast_forward = 1;
        struct wt_status s;
 
+       if (argc == 2 && !strcmp(argv[1], "-h"))
+               usage_with_options(builtin_commit_usage, builtin_commit_options);
+
        wt_status_prepare(&s);
        git_config(git_commit_config, &s);
        in_merge = file_exists(git_path("MERGE_HEAD"));

diff --git a/t/t7508-status.sh b/t/t7508-status.sh
index c9300f3c8b246e3c81570532534748e510a2865f..beaae9430659f617fa7a3c8553ba6494497837c6 100755 (executable)
--- a/t/t7508-status.sh
+++ b/t/t7508-status.sh
@@ -7,6 +7,30 @@ test_description='git status'
 
 . ./test-lib.sh
 
+test_expect_success 'status -h in broken repository' '
+       mkdir broken &&
+       test_when_finished "rm -fr broken" &&
+       (
+               cd broken &&
+               git init &&
+               echo "[status] showuntrackedfiles = CORRUPT" >>.git/config &&
+               test_expect_code 129 git status -h >usage 2>&1
+       ) &&
+       grep "[Uu]sage" broken/usage
+'
+
+test_expect_success 'commit -h in broken repository' '
+       mkdir broken &&
+       test_when_finished "rm -fr broken" &&
+       (
+               cd broken &&
+               git init &&
+               echo "[status] showuntrackedfiles = CORRUPT" >>.git/config &&
+               test_expect_code 129 git commit -h >usage 2>&1
+       ) &&
+       grep "[Uu]sage" broken/usage
+'
+
 test_expect_success 'setup' '
        : >tracked &&
        : >modified &&