Andrew's git - gitweb.git/blob

   1#include "cache.h"
   2#include "argv-array.h"
   3#include "strbuf.h"
   4
   5const char *empty_argv[] = { NULL };
   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
  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
  52void argv_array_pushv(struct argv_array *array, const char **argv)
  53{
  54        for (; *argv; argv++)
  55                argv_array_push(array, *argv);
  56}
  57
  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
  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++)
  72                        free((char *)array->argv[i]);
  73                free(array->argv);
  74        }
  75        argv_array_init(array);
  76}
  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}