7 static const char *argv_exec_path;
8 static const char *argv0_path;
10 const char *system_path(const char *path)
12 static const char *prefix = PREFIX;
13 struct strbuf d = STRBUF_INIT;
15 if (is_absolute_path(path))
18 strbuf_addf(&d, "%s/%s", prefix, path);
19 path = strbuf_detach(&d, NULL);
23 void git_set_argv0_path(const char *path)
28 void git_set_argv_exec_path(const char *exec_path)
30 argv_exec_path = exec_path;
34 /* Returns the highest-priority, location to look for git programs. */
35 const char *git_exec_path(void)
40 return argv_exec_path;
42 env = getenv(EXEC_PATH_ENVIRONMENT);
47 return system_path(GIT_EXEC_PATH);
50 static void add_path(struct strbuf *out, const char *path)
53 if (is_absolute_path(path))
54 strbuf_addstr(out, path);
56 strbuf_addstr(out, make_nonrelative_path(path));
58 strbuf_addch(out, PATH_SEP);
64 const char *old_path = getenv("PATH");
65 struct strbuf new_path = STRBUF_INIT;
67 add_path(&new_path, argv_exec_path);
68 add_path(&new_path, getenv(EXEC_PATH_ENVIRONMENT));
69 add_path(&new_path, system_path(GIT_EXEC_PATH));
70 add_path(&new_path, argv0_path);
73 strbuf_addstr(&new_path, old_path);
75 strbuf_addstr(&new_path, "/usr/local/bin:/usr/bin:/bin");
77 setenv("PATH", new_path.buf, 1);
79 strbuf_release(&new_path);
82 const char **prepare_git_cmd(const char **argv)
87 for (argc = 0; argv[argc]; argc++)
89 nargv = xmalloc(sizeof(*nargv) * (argc + 2));
92 for (argc = 0; argv[argc]; argc++)
93 nargv[argc + 1] = argv[argc];
94 nargv[argc + 1] = NULL;
98 int execv_git_cmd(const char **argv) {
99 const char **nargv = prepare_git_cmd(argv);
100 trace_argv_printf(nargv, "trace: exec:");
102 /* execvp() can only ever return if it fails */
103 execvp("git", (char **)nargv);
105 trace_printf("trace: exec failed: %s\n", strerror(errno));
112 int execl_git_cmd(const char *cmd,...)
115 const char *argv[MAX_ARGS + 1];
119 va_start(param, cmd);
122 while (argc < MAX_ARGS) {
123 arg = argv[argc++] = va_arg(param, char *);
128 if (MAX_ARGS <= argc)
129 return error("too many args to run %s", cmd);
132 return execv_git_cmd(argv);