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git/argv-array.c
Jeff King d15bbe1379 argv-array: add a new "pushl" method
It can be convenient to push many strings in a single line
(e.g., if you are initializing an array with defaults). This
patch provides a convenience wrapper to allow this.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-18 16:16:38 -07:00

61 lines
1.2 KiB
C

#include "cache.h"
#include "argv-array.h"
#include "strbuf.h"
const char *empty_argv[] = { NULL };
void argv_array_init(struct argv_array *array)
{
array->argv = empty_argv;
array->argc = 0;
array->alloc = 0;
}
static void argv_array_push_nodup(struct argv_array *array, const char *value)
{
if (array->argv == empty_argv)
array->argv = NULL;
ALLOC_GROW(array->argv, array->argc + 2, array->alloc);
array->argv[array->argc++] = value;
array->argv[array->argc] = NULL;
}
void argv_array_push(struct argv_array *array, const char *value)
{
argv_array_push_nodup(array, xstrdup(value));
}
void argv_array_pushf(struct argv_array *array, const char *fmt, ...)
{
va_list ap;
struct strbuf v = STRBUF_INIT;
va_start(ap, fmt);
strbuf_vaddf(&v, fmt, ap);
va_end(ap);
argv_array_push_nodup(array, strbuf_detach(&v, NULL));
}
void argv_array_pushl(struct argv_array *array, ...)
{
va_list ap;
const char *arg;
va_start(ap, array);
while((arg = va_arg(ap, const char *)))
argv_array_push(array, arg);
va_end(ap);
}
void argv_array_clear(struct argv_array *array)
{
if (array->argv != empty_argv) {
int i;
for (i = 0; i < array->argc; i++)
free((char **)array->argv[i]);
free(array->argv);
}
argv_array_init(array);
}