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Refactor git_set_argv0_path() to git_extract_argv0_path()

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This commit moves the code that computes the dirname of argv[0]
from git.c's main() to git_set_argv0_path() and renames the function
to git_extract_argv0_path().  This makes the code in git.c's main
less cluttered, and we can use the dirname computation from other
main() functions too.

[ spr:
 - split Steve's original commit and wrote new commit message.
 - Integrated Johannes Schindelin's
   cca1704897 while rebasing onto master.
]

Signed-off-by: Steve Haslam <shaslam@lastminute.com>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Steve Haslam 2009-01-18 13:00:10 +01:00 committed by Junio C Hamano
parent 026fa0d5ad
commit 4dd47c3b86
3 changed files with 19 additions and 18 deletions
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14
exec_cmd.c
View File

@ -20,9 +20,19 @@ const char *system_path(const char *path)
return path;
}
void git_set_argv0_path(const char *path)
const char *git_extract_argv0_path(const char *argv0)
{
argv0_path = path;
const char *slash = argv0 + strlen(argv0);
while (argv0 <= slash && !is_dir_sep(*slash))
slash--;
if (slash >= argv0) {
argv0_path = xstrndup(argv0, slash - argv0);
return slash + 1;
}
return argv0;
}
void git_set_argv_exec_path(const char *exec_path)

4
exec_cmd.h
View File

@ -2,8 +2,8 @@
#define GIT_EXEC_CMD_H
extern void git_set_argv_exec_path(const char *exec_path);
extern void git_set_argv0_path(const char *path);
extern const char* git_exec_path(void);
extern const char *git_extract_argv0_path(const char *path);
extern const char *git_exec_path(void);
extern void setup_path(void);
extern const char **prepare_git_cmd(const char **argv);
extern int execv_git_cmd(const char **argv); /* NULL terminated */

19
git.c
View File

@ -442,21 +442,12 @@ static int run_argv(int *argcp, const char ***argv)
int main(int argc, const char **argv)
{
const char *cmd = argv[0] && *argv[0] ? argv[0] : "git-help";
char *slash = (char *)cmd + strlen(cmd);
const char *cmd;
/*
* Take the basename of argv[0] as the command
* name, and the dirname as the default exec_path
* if we don't have anything better.
*/
while (cmd <= slash && !is_dir_sep(*slash))
slash--;
if (cmd <= slash) {
*slash++ = 0;
git_set_argv0_path(cmd);
cmd = slash;
}
if (argv[0] && *argv[0])
cmd = git_extract_argv0_path(argv[0]);
else
cmd = "git-help";
/*
* "git-xxxx" is the same as "git xxxx", but we obviously: