7 static const char *argv_exec_path
;
8 static const char *argv0_path
;
10 static const char *builtin_exec_path(void)
21 len
= strlen(_pgmptr
);
25 p
= ep
= xmalloc(len
+1);
28 /* copy program name, turn '\\' into '/', skip last part */
30 if (*q
== '\\' || *q
== '/') {
39 ep
[0] = '.', ep
[1] = '\0';
44 const char *system_path(const char *path
)
46 if (!is_absolute_path(path
) && argv0_path
) {
47 struct strbuf d
= STRBUF_INIT
;
48 strbuf_addf(&d
, "%s/%s", argv0_path
, path
);
49 path
= strbuf_detach(&d
, NULL
);
54 void git_set_argv0_path(const char *path
)
59 void git_set_argv_exec_path(const char *exec_path
)
61 argv_exec_path
= exec_path
;
65 /* Returns the highest-priority, location to look for git programs. */
66 const char *git_exec_path(void)
71 return argv_exec_path
;
73 env
= getenv(EXEC_PATH_ENVIRONMENT
);
78 return builtin_exec_path();
81 static void add_path(struct strbuf
*out
, const char *path
)
84 if (is_absolute_path(path
))
85 strbuf_addstr(out
, path
);
87 strbuf_addstr(out
, make_absolute_path(path
));
89 strbuf_addch(out
, PATH_SEP
);
95 const char *old_path
= getenv("PATH");
96 struct strbuf new_path
;
98 strbuf_init(&new_path
, 0);
100 add_path(&new_path
, argv_exec_path
);
101 add_path(&new_path
, getenv(EXEC_PATH_ENVIRONMENT
));
102 add_path(&new_path
, builtin_exec_path());
103 add_path(&new_path
, argv0_path
);
106 strbuf_addstr(&new_path
, old_path
);
108 strbuf_addstr(&new_path
, "/usr/local/bin:/usr/bin:/bin");
110 setenv("PATH", new_path
.buf
, 1);
112 strbuf_release(&new_path
);
115 int execv_git_cmd(const char **argv
)
120 for (argc
= 0; argv
[argc
]; argc
++)
121 ; /* just counting */
122 nargv
= xmalloc(sizeof(*nargv
) * (argc
+ 2));
125 for (argc
= 0; argv
[argc
]; argc
++)
126 nargv
[argc
+ 1] = argv
[argc
];
127 nargv
[argc
+ 1] = NULL
;
128 trace_argv_printf(nargv
, "trace: exec:");
130 /* execvp() can only ever return if it fails */
131 execvp("git", (char **)nargv
);
133 trace_printf("trace: exec failed: %s\n", strerror(errno
));
140 int execl_git_cmd(const char *cmd
,...)
143 const char *argv
[MAX_ARGS
+ 1];
147 va_start(param
, cmd
);
150 while (argc
< MAX_ARGS
) {
151 arg
= argv
[argc
++] = va_arg(param
, char *);
156 if (MAX_ARGS
<= argc
)
157 return error("too many args to run %s", cmd
);
160 return execv_git_cmd(argv
);