[PATCH 36/43] builtins: utilize startup_info->help where possible

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

It helps reduce false alarms while I'm looking for "git foo -h" code
path that accesses repository. Anyway it looks like a good thing to
do.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/check-ref-format.c |    2 +-
 builtin/grep.c             |    2 +-
 builtin/index-pack.c       |    2 +-
 builtin/log.c              |    6 +-----
 builtin/merge-ours.c       |    2 +-
 builtin/pack-redundant.c   |    2 +-
 builtin/show-ref.c         |    2 +-
 7 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/builtin/check-ref-format.c b/builtin/check-ref-format.c
index b106c65..c13f90a 100644
--- a/builtin/check-ref-format.c
+++ b/builtin/check-ref-format.c
@@ -35,7 +35,7 @@ static void collapse_slashes(char *dst, const char *src)
 
 int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
 {
-	if (argc == 2 && !strcmp(argv[1], "-h"))
+	if (startup_info->help)
 		usage(builtin_check_ref_format_usage);
 
 	if (argc == 3 && !strcmp(argv[1], "--branch")) {
diff --git a/builtin/grep.c b/builtin/grep.c
index a4ea0c9..7b5e416 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -871,7 +871,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 	 * 'git grep -h', unlike 'git grep -h <pattern>', is a request
 	 * to show usage information and exit.
 	 */
-	if (argc == 2 && !strcmp(argv[1], "-h"))
+	if (startup_info->help)
 		usage_with_options(grep_usage, options);
 
 	memset(&opt, 0, sizeof(opt));
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 9aa6a13..44375a2 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -880,7 +880,7 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix)
 	struct pack_idx_entry **idx_objects;
 	unsigned char pack_sha1[20];
 
-	if (argc == 2 && !strcmp(argv[1], "-h"))
+	if (startup_info->help)
 		usage(index_pack_usage);
 
 	/*
diff --git a/builtin/log.c b/builtin/log.c
index 542ecc7..294402b 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -50,11 +50,7 @@ static void cmd_log_init(int argc, const char **argv, const char *prefix,
 	if (default_date_mode)
 		rev->date_mode = parse_date_format(default_date_mode);
 
-	/*
-	 * Check for -h before setup_revisions(), or "git log -h" will
-	 * fail when run without a git directory.
-	 */
-	if (argc == 2 && !strcmp(argv[1], "-h"))
+	if (startup_info->help)
 		usage(builtin_log_usage);
 	argc = setup_revisions(argc, argv, rev, opt);
 
diff --git a/builtin/merge-ours.c b/builtin/merge-ours.c
index 6844116..8e0777b 100644
--- a/builtin/merge-ours.c
+++ b/builtin/merge-ours.c
@@ -20,7 +20,7 @@ static const char *diff_index_args[] = {
 
 int cmd_merge_ours(int argc, const char **argv, const char *prefix)
 {
-	if (argc == 2 && !strcmp(argv[1], "-h"))
+	if (startup_info->help)
 		usage(builtin_merge_ours_usage);
 
 	/*
diff --git a/builtin/pack-redundant.c b/builtin/pack-redundant.c
index 41e1615..3f090b2 100644
--- a/builtin/pack-redundant.c
+++ b/builtin/pack-redundant.c
@@ -601,7 +601,7 @@ int cmd_pack_redundant(int argc, const char **argv, const char *prefix)
 	unsigned char *sha1;
 	char buf[42]; /* 40 byte sha1 + \n + \0 */
 
-	if (argc == 2 && !strcmp(argv[1], "-h"))
+	if (startup_info->help)
 		usage(pack_redundant_usage);
 
 	for (i = 1; i < argc; i++) {
diff --git a/builtin/show-ref.c b/builtin/show-ref.c
index 17ada88..59f90df 100644
--- a/builtin/show-ref.c
+++ b/builtin/show-ref.c
@@ -204,7 +204,7 @@ static const struct option show_ref_options[] = {
 
 int cmd_show_ref(int argc, const char **argv, const char *prefix)
 {
-	if (argc == 2 && !strcmp(argv[1], "-h"))
+	if (startup_info->help)
 		usage_with_options(show_ref_usage, show_ref_options);
 
 	argc = parse_options(argc, argv, prefix, show_ref_options,
-- 
1.7.0.rc1.541.g2da82.dirty