7 static const char *argv_exec_path;
9 static const char *builtin_exec_path(void)
20 len = strlen(_pgmptr);
24 p = ep = xmalloc(len+1);
27 /* copy program name, turn '\\' into '/', skip last part */
29 if (*q == '\\' || *q == '/') {
38 ep[0] = '.', ep[1] = '\0';
43 void git_set_argv_exec_path(const char *exec_path)
45 argv_exec_path = exec_path;
49 /* Returns the highest-priority, location to look for git programs. */
50 const char *git_exec_path(void)
55 return argv_exec_path;
57 env = getenv(EXEC_PATH_ENVIRONMENT);
62 return builtin_exec_path();
65 static void add_path(struct strbuf *out, const char *path)
68 if (is_absolute_path(path))
69 strbuf_addstr(out, path);
71 strbuf_addstr(out, make_absolute_path(path));
73 strbuf_addch(out, PATH_SEP);
77 void setup_path(const char *cmd_path)
79 const char *old_path = getenv("PATH");
80 struct strbuf new_path;
82 strbuf_init(&new_path, 0);
84 add_path(&new_path, argv_exec_path);
85 add_path(&new_path, getenv(EXEC_PATH_ENVIRONMENT));
86 add_path(&new_path, builtin_exec_path());
87 add_path(&new_path, cmd_path);
90 strbuf_addstr(&new_path, old_path);
92 strbuf_addstr(&new_path, "/usr/local/bin:/usr/bin:/bin");
94 setenv("PATH", new_path.buf, 1);
96 strbuf_release(&new_path);
99 int execv_git_cmd(const char **argv)
104 strbuf_init(&cmd, 0);
105 strbuf_addf(&cmd, "git-%s", argv[0]);
108 * argv[0] must be the git command, but the argv array
109 * belongs to the caller, and may be reused in
110 * subsequent loop iterations. Save argv[0] and
111 * restore it on error.
116 trace_argv_printf(argv, "trace: exec:");
118 /* execvp() can only ever return if it fails */
119 execvp(cmd.buf, (char **)argv);
121 trace_printf("trace: exec failed: %s\n", strerror(errno));
125 strbuf_release(&cmd);
131 int execl_git_cmd(const char *cmd,...)
134 const char *argv[MAX_ARGS + 1];
138 va_start(param, cmd);
141 while (argc < MAX_ARGS) {
142 arg = argv[argc++] = va_arg(param, char *);
147 if (MAX_ARGS <= argc)
148 return error("too many args to run %s", cmd);
151 return execv_git_cmd(argv);