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 const char *system_path(const char *path)
45 if (!is_absolute_path(path)) {
46 struct strbuf d = STRBUF_INIT;
47 strbuf_addf(&d, "%s/%s", git_exec_path(), path);
48 path = strbuf_detach(&d, NULL);
53 void git_set_argv_exec_path(const char *exec_path)
55 argv_exec_path = exec_path;
59 /* Returns the highest-priority, location to look for git programs. */
60 const char *git_exec_path(void)
65 return argv_exec_path;
67 env = getenv(EXEC_PATH_ENVIRONMENT);
72 return builtin_exec_path();
75 static void add_path(struct strbuf *out, const char *path)
78 if (is_absolute_path(path))
79 strbuf_addstr(out, path);
81 strbuf_addstr(out, make_absolute_path(path));
83 strbuf_addch(out, PATH_SEP);
87 void setup_path(const char *cmd_path)
89 const char *old_path = getenv("PATH");
90 struct strbuf new_path;
92 strbuf_init(&new_path, 0);
94 add_path(&new_path, argv_exec_path);
95 add_path(&new_path, getenv(EXEC_PATH_ENVIRONMENT));
96 add_path(&new_path, builtin_exec_path());
97 add_path(&new_path, cmd_path);
100 strbuf_addstr(&new_path, old_path);
102 strbuf_addstr(&new_path, "/usr/local/bin:/usr/bin:/bin");
104 setenv("PATH", new_path.buf, 1);
106 strbuf_release(&new_path);
109 int execv_git_cmd(const char **argv)
114 for (argc = 0; argv[argc]; argc++)
115 ; /* just counting */
116 nargv = xmalloc(sizeof(*nargv) * (argc + 2));
119 for (argc = 0; argv[argc]; argc++)
120 nargv[argc + 1] = argv[argc];
121 nargv[argc + 1] = NULL;
122 trace_argv_printf(nargv, "trace: exec:");
124 /* execvp() can only ever return if it fails */
125 execvp("git", (char **)nargv);
127 trace_printf("trace: exec failed: %s\n", strerror(errno));
134 int execl_git_cmd(const char *cmd,...)
137 const char *argv[MAX_ARGS + 1];
141 va_start(param, cmd);
144 while (argc < MAX_ARGS) {
145 arg = argv[argc++] = va_arg(param, char *);
150 if (MAX_ARGS <= argc)
151 return error("too many args to run %s", cmd);
154 return execv_git_cmd(argv);