The fourth batch for 2.18
[git/git.git] / argv-array.c
CommitLineData
c1189cae
JK
1#include "cache.h"
2#include "argv-array.h"
3#include "strbuf.h"
4
fd93d2e6 5const char *empty_argv[] = { NULL };
c1189cae
JK
6
7void argv_array_init(struct argv_array *array)
8{
9 array->argv = empty_argv;
10 array->argc = 0;
11 array->alloc = 0;
12}
13
14static void argv_array_push_nodup(struct argv_array *array, const char *value)
15{
16 if (array->argv == empty_argv)
17 array->argv = NULL;
18
19 ALLOC_GROW(array->argv, array->argc + 2, array->alloc);
20 array->argv[array->argc++] = value;
21 array->argv[array->argc] = NULL;
22}
23
24void argv_array_push(struct argv_array *array, const char *value)
25{
26 argv_array_push_nodup(array, xstrdup(value));
27}
28
29void argv_array_pushf(struct argv_array *array, const char *fmt, ...)
30{
31 va_list ap;
32 struct strbuf v = STRBUF_INIT;
33
34 va_start(ap, fmt);
35 strbuf_vaddf(&v, fmt, ap);
36 va_end(ap);
37
38 argv_array_push_nodup(array, strbuf_detach(&v, NULL));
39}
40
d15bbe13
JK
41void argv_array_pushl(struct argv_array *array, ...)
42{
43 va_list ap;
44 const char *arg;
45
46 va_start(ap, array);
47 while((arg = va_arg(ap, const char *)))
48 argv_array_push(array, arg);
49 va_end(ap);
50}
51
85b34324
PT
52void argv_array_pushv(struct argv_array *array, const char **argv)
53{
54 for (; *argv; argv++)
55 argv_array_push(array, *argv);
56}
57
fe4a0a28
JK
58void argv_array_pop(struct argv_array *array)
59{
60 if (!array->argc)
61 return;
62 free((char *)array->argv[array->argc - 1]);
63 array->argv[array->argc - 1] = NULL;
64 array->argc--;
65}
66
c1189cae
JK
67void argv_array_clear(struct argv_array *array)
68{
69 if (array->argv != empty_argv) {
70 int i;
71 for (i = 0; i < array->argc; i++)
ba4d1c7b 72 free((char *)array->argv[i]);
c1189cae
JK
73 free(array->argv);
74 }
75 argv_array_init(array);
76}
b992657e
JK
77
78const char **argv_array_detach(struct argv_array *array)
79{
80 if (array->argv == empty_argv)
81 return xcalloc(1, sizeof(const char *));
82 else {
83 const char **ret = array->argv;
84 argv_array_init(array);
85 return ret;
86 }
87}