7 static const char *builtin_exec_path
= GIT_EXEC_PATH
;
8 static const char *current_exec_path
;
10 void git_set_exec_path(const char *exec_path
)
12 current_exec_path
= exec_path
;
16 /* Returns the highest-priority, location to look for git programs. */
17 const char *git_exec_path(void)
21 if (current_exec_path
)
22 return current_exec_path
;
24 env
= getenv(EXEC_PATH_ENVIRONMENT
);
29 return builtin_exec_path
;
33 int execv_git_cmd(const char **argv
)
35 char git_command
[PATH_MAX
+ 1];
37 const char *paths
[] = { current_exec_path
,
38 getenv(EXEC_PATH_ENVIRONMENT
),
41 for (i
= 0; i
< ARRAY_SIZE(paths
); ++i
) {
44 const char *exec_dir
= paths
[i
];
48 if (*exec_dir
!= '/' && exec_dir
[1] != ':') {
50 if (*exec_dir
!= '/') {
52 if (!getcwd(git_command
, sizeof(git_command
))) {
53 fprintf(stderr
, "git: cannot determine "
54 "current directory: %s\n",
58 len
= strlen(git_command
);
61 while (!strncmp(exec_dir
, "./", 2)) {
63 while (*exec_dir
== '/')
67 rc
= snprintf(git_command
+ len
,
68 sizeof(git_command
) - len
, "/%s",
70 if (rc
< 0 || rc
>= sizeof(git_command
) - len
) {
71 fprintf(stderr
, "git: command name given "
76 if (strlen(exec_dir
) + 1 > sizeof(git_command
)) {
77 fprintf(stderr
, "git: command name given "
81 strcpy(git_command
, exec_dir
);
84 len
= strlen(git_command
);
85 rc
= snprintf(git_command
+ len
, sizeof(git_command
) - len
,
87 if (rc
< 0 || rc
>= sizeof(git_command
) - len
) {
89 "git: command name given is too long.\n");
93 /* argv[0] must be the git command, but the argv array
94 * belongs to the caller, and my be reused in
95 * subsequent loop iterations. Save argv[0] and
96 * restore it on error.
100 argv
[0] = git_command
;
102 trace_argv_printf(argv
, -1, "trace: exec:");
104 /* execve() can only ever return if it fails */
105 execve(git_command
, (char **)argv
, environ
);
107 trace_printf("trace: exec failed: %s\n", strerror(errno
));
116 int execl_git_cmd(const char *cmd
,...)
119 const char *argv
[MAX_ARGS
+ 1];
123 va_start(param
, cmd
);
126 while (argc
< MAX_ARGS
) {
127 arg
= argv
[argc
++] = va_arg(param
, char *);
132 if (MAX_ARGS
<= argc
)
133 return error("too many args to run %s", cmd
);
136 return execv_git_cmd(argv
);