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authorRamsay Allan Jones <ramsay@ramsay1.demon.co.uk>2006-07-30 21:42:25 (GMT)
committerJunio C Hamano <junkio@cox.net>2006-08-02 07:27:18 (GMT)
commit822a7d507151e1d6310f52d5b05234d65db11a88 (patch)
tree649ce1c6b078ed5a040f5ffb91cf847c023a473f
parent8e76483ce0ce256b01345abc4ca97b1f94aed354 (diff)
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Remove cmd_usage() routine and re-organize the help/usage code.
The cmd_usage() routine was causing warning messages due to a NULL format parameter being passed in three out of four calls. This is a problem if you want to compile with -Werror. A simple solution is to simply remove the GNU __attribute__ format pragma from the cmd_usage() declaration in the header file. The function interface was somewhat muddled anyway, so re-write the code to finesse the problem. [jc: this incidentally revealed that t9100 test assumed that the output from "git help" to be fixed in stone, but this patch lower-cases "Usage" to "usage". Update the test not to rely on "git help" output.] Signed-off-by: Ramsay Allan Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <junkio@cox.net>
-rw-r--r--builtin-help.c54
-rw-r--r--builtin.h7
-rw-r--r--git.c7
-rwxr-xr-xt/t9100-git-svn-basic.sh7
4 files changed, 33 insertions, 42 deletions
diff --git a/builtin-help.c b/builtin-help.c
index bb0b03f..fb731cc 100644
--- a/builtin-help.c
+++ b/builtin-help.c
@@ -9,8 +9,6 @@
#include "exec_cmd.h"
#include "common-cmds.h"
-static const char git_usage[] =
- "Usage: git [--version] [--exec-path[=GIT_EXEC_PATH]] [--help] COMMAND [ ARGS ]";
/* most GUI terminals set COLUMNS (although some don't export it) */
static int term_columns(void)
@@ -178,31 +176,6 @@ static void list_common_cmds_help(void)
puts("(use 'git help -a' to get a list of all installed git commands)");
}
-void cmd_usage(int show_all, const char *exec_path, const char *fmt, ...)
-{
- if (fmt) {
- va_list ap;
-
- va_start(ap, fmt);
- printf("git: ");
- vprintf(fmt, ap);
- va_end(ap);
- putchar('\n');
- }
- else
- puts(git_usage);
-
- if (exec_path) {
- putchar('\n');
- if (show_all)
- list_commands(exec_path, "git-*");
- else
- list_common_cmds_help();
- }
-
- exit(1);
-}
-
static void show_man_page(const char *git_cmd)
{
const char *page;
@@ -221,6 +194,13 @@ static void show_man_page(const char *git_cmd)
execlp("man", "man", page, NULL);
}
+void help_unknown_cmd(const char *cmd)
+{
+ printf("git: '%s' is not a git-command\n\n", cmd);
+ list_common_cmds_help();
+ exit(1);
+}
+
int cmd_version(int argc, const char **argv, const char *prefix)
{
printf("git version %s\n", git_version_string);
@@ -230,12 +210,24 @@ int cmd_version(int argc, const char **argv, const char *prefix)
int cmd_help(int argc, const char **argv, const char *prefix)
{
const char *help_cmd = argc > 1 ? argv[1] : NULL;
- if (!help_cmd)
- cmd_usage(0, git_exec_path(), NULL);
- else if (!strcmp(help_cmd, "--all") || !strcmp(help_cmd, "-a"))
- cmd_usage(1, git_exec_path(), NULL);
+ const char *exec_path = git_exec_path();
+
+ if (!help_cmd) {
+ printf("usage: %s\n\n", git_usage_string);
+ list_common_cmds_help();
+ exit(1);
+ }
+
+ else if (!strcmp(help_cmd, "--all") || !strcmp(help_cmd, "-a")) {
+ printf("usage: %s\n\n", git_usage_string);
+ if(exec_path)
+ list_commands(exec_path, "git-*");
+ exit(1);
+ }
+
else
show_man_page(help_cmd);
+
return 0;
}
diff --git a/builtin.h b/builtin.h
index 88c4d84..f10d3b7 100644
--- a/builtin.h
+++ b/builtin.h
@@ -5,12 +5,9 @@
#include <limits.h>
extern const char git_version_string[];
+extern const char git_usage_string[];
-void cmd_usage(int show_all, const char *exec_path, const char *fmt, ...)
-#ifdef __GNUC__
- __attribute__((__format__(__printf__, 3, 4), __noreturn__))
-#endif
- ;
+extern void help_unknown_cmd(const char *cmd);
extern int cmd_help(int argc, const char **argv, const char *prefix);
extern int cmd_version(int argc, const char **argv, const char *prefix);
diff --git a/git.c b/git.c
index d031eb9..110e82e 100644
--- a/git.c
+++ b/git.c
@@ -15,6 +15,9 @@
#include "builtin.h"
+const char git_usage_string[] =
+ "git [--version] [--exec-path[=GIT_EXEC_PATH]] [--help] COMMAND [ ARGS ]";
+
static void prepend_to_path(const char *dir, int len)
{
const char *old_path = getenv("PATH");
@@ -78,7 +81,7 @@ static int handle_options(const char*** argv, int* argc)
setenv("GIT_DIR", getcwd(git_dir, 1024), 1);
} else {
fprintf(stderr, "Unknown option: %s\n", cmd);
- cmd_usage(0, NULL, NULL);
+ usage(git_usage_string);
}
(*argv)++;
@@ -375,7 +378,7 @@ int main(int argc, const char **argv, char **envp)
}
if (errno == ENOENT)
- cmd_usage(0, exec_path, "'%s' is not a git-command", cmd);
+ help_unknown_cmd(cmd);
fprintf(stderr, "Failed to run command '%s': %s\n",
cmd, strerror(errno));
diff --git a/t/t9100-git-svn-basic.sh b/t/t9100-git-svn-basic.sh
index bf1d638..34a3ccd 100755
--- a/t/t9100-git-svn-basic.sh
+++ b/t/t9100-git-svn-basic.sh
@@ -170,7 +170,7 @@ then
test -L $SVN_TREE/exec-2.sh"
name='modify a symlink to become a file'
- git help > help || true
+ echo git help > help || true
rm exec-2.sh
cp help exec-2.sh
git update-index exec-2.sh
@@ -217,10 +217,10 @@ name='check imported tree checksums expected tree checksums'
rm -f expected
if test "$have_utf8" = t
then
- echo tree f735671b89a7eb30cab1d8597de35bd4271ab813 > expected
+ echo tree bf522353586b1b883488f2bc73dab0d9f774b9a9 > expected
fi
cat >> expected <<\EOF
-tree 4b9af72bb861eaed053854ec502cf7df72618f0f
+tree 83654bb36f019ae4fe77a0171f81075972087624
tree 031b8d557afc6fea52894eaebb45bec52f1ba6d1
tree 0b094cbff17168f24c302e297f55bfac65eb8bd3
tree d667270a1f7b109f5eb3aaea21ede14b56bfdd6e
@@ -231,4 +231,3 @@ EOF
test_expect_success "$name" "diff -u a expected"
test_done
-