Merge branch 'esr/maint-doc-fast-import'
[git.git] / argv-array.c
blob9e960d549c158a4c761942bb17824c1d5e075d49
1 #include "cache.h"
2 #include "argv-array.h"
3 #include "strbuf.h"
5 const char *empty_argv[] = { NULL };
7 void argv_array_init(struct argv_array *array)
9 array->argv = empty_argv;
10 array->argc = 0;
11 array->alloc = 0;
14 static void argv_array_push_nodup(struct argv_array *array, const char *value)
16 if (array->argv == empty_argv)
17 array->argv = NULL;
19 ALLOC_GROW(array->argv, array->argc + 2, array->alloc);
20 array->argv[array->argc++] = value;
21 array->argv[array->argc] = NULL;
24 void argv_array_push(struct argv_array *array, const char *value)
26 argv_array_push_nodup(array, xstrdup(value));
29 void argv_array_pushf(struct argv_array *array, const char *fmt, ...)
31 va_list ap;
32 struct strbuf v = STRBUF_INIT;
34 va_start(ap, fmt);
35 strbuf_vaddf(&v, fmt, ap);
36 va_end(ap);
38 argv_array_push_nodup(array, strbuf_detach(&v, NULL));
41 void argv_array_pushl(struct argv_array *array, ...)
43 va_list ap;
44 const char *arg;
46 va_start(ap, array);
47 while((arg = va_arg(ap, const char *)))
48 argv_array_push(array, arg);
49 va_end(ap);
52 void argv_array_pop(struct argv_array *array)
54 if (!array->argc)
55 return;
56 free((char *)array->argv[array->argc - 1]);
57 array->argv[array->argc - 1] = NULL;
58 array->argc--;
61 void argv_array_clear(struct argv_array *array)
63 if (array->argv != empty_argv) {
64 int i;
65 for (i = 0; i < array->argc; i++)
66 free((char *)array->argv[i]);
67 free(array->argv);
69 argv_array_init(array);
72 const char **argv_array_detach(struct argv_array *array, int *argc)
74 const char **argv =
75 array->argv == empty_argv || array->argc == 0 ? NULL : array->argv;
76 if (argc)
77 *argc = array->argc;
78 argv_array_init(array);
79 return argv;
82 void argv_array_free_detached(const char **argv)
84 if (argv) {
85 int i;
86 for (i = 0; argv[i]; i++)
87 free((char **)argv[i]);
88 free(argv);