mirror of
https://github.com/git/git.git
synced 2024-05-19 15:16:08 +02:00
77cb17e940
The git suite may not be in PATH (and thus programs such as git-send-pack could not exec git-rev-list). Thus there is a need for logic that will locate these programs. Modifying PATH is not desirable as it result in behavior differing from the user's intentions, as we may end up prepending "/usr/bin" to PATH. - git C programs will use exec*_git_cmd() APIs to exec sub-commands. - exec*_git_cmd() will execute a git program by searching for it in the following directories: 1. --exec-path (as used by "git") 2. The GIT_EXEC_PATH environment variable. 3. $(gitexecdir) as set in Makefile (default value $(bindir)). - git wrapper will modify PATH as before to enable shell scripts to invoke "git-foo" commands. Ideally, shell scripts should use the git wrapper to become independent of PATH, and then modifying PATH will not be necessary. [jc: with minor updates after a brief review.] Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
#include "cache.h"
|
|
#include "quote.h"
|
|
#include "exec_cmd.h"
|
|
|
|
static int do_generic_cmd(const char *me, char *arg)
|
|
{
|
|
const char *my_argv[4];
|
|
|
|
if (!arg || !(arg = sq_dequote(arg)))
|
|
die("bad argument");
|
|
if (strncmp(me, "git-", 4))
|
|
die("bad command");
|
|
|
|
my_argv[0] = me + 4;
|
|
my_argv[1] = arg;
|
|
my_argv[2] = NULL;
|
|
|
|
return execv_git_cmd((char**) my_argv);
|
|
}
|
|
|
|
static struct commands {
|
|
const char *name;
|
|
int (*exec)(const char *me, char *arg);
|
|
} cmd_list[] = {
|
|
{ "git-receive-pack", do_generic_cmd },
|
|
{ "git-upload-pack", do_generic_cmd },
|
|
{ NULL },
|
|
};
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
char *prog;
|
|
struct commands *cmd;
|
|
|
|
/* We want to see "-c cmd args", and nothing else */
|
|
if (argc != 3 || strcmp(argv[1], "-c"))
|
|
die("What do you think I am? A shell?");
|
|
|
|
prog = argv[2];
|
|
argv += 2;
|
|
argc -= 2;
|
|
for (cmd = cmd_list ; cmd->name ; cmd++) {
|
|
int len = strlen(cmd->name);
|
|
char *arg;
|
|
if (strncmp(cmd->name, prog, len))
|
|
continue;
|
|
arg = NULL;
|
|
switch (prog[len]) {
|
|
case '\0':
|
|
arg = NULL;
|
|
break;
|
|
case ' ':
|
|
arg = prog + len + 1;
|
|
break;
|
|
default:
|
|
continue;
|
|
}
|
|
exit(cmd->exec(cmd->name, arg));
|
|
}
|
|
die("unrecognized command '%s'", prog);
|
|
}
|