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ba4d1c7b16
Since the array struct stores a "const char **" argv member (for compatibility with most of our argv-taking functions), we have to cast away the const-ness when freeing its elements. However, we used the wrong type when doing so. It doesn't make a difference since free() take a void pointer anyway, but it can be slightly confusing to a reader. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
#include "cache.h"
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#include "argv-array.h"
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#include "strbuf.h"
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const char *empty_argv[] = { NULL };
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void argv_array_init(struct argv_array *array)
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{
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array->argv = empty_argv;
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array->argc = 0;
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array->alloc = 0;
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}
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static void argv_array_push_nodup(struct argv_array *array, const char *value)
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{
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if (array->argv == empty_argv)
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array->argv = NULL;
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ALLOC_GROW(array->argv, array->argc + 2, array->alloc);
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array->argv[array->argc++] = value;
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array->argv[array->argc] = NULL;
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}
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void argv_array_push(struct argv_array *array, const char *value)
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{
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argv_array_push_nodup(array, xstrdup(value));
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}
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void argv_array_pushf(struct argv_array *array, const char *fmt, ...)
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{
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va_list ap;
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struct strbuf v = STRBUF_INIT;
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va_start(ap, fmt);
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strbuf_vaddf(&v, fmt, ap);
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va_end(ap);
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argv_array_push_nodup(array, strbuf_detach(&v, NULL));
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}
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void argv_array_pushl(struct argv_array *array, ...)
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{
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va_list ap;
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const char *arg;
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va_start(ap, array);
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while((arg = va_arg(ap, const char *)))
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argv_array_push(array, arg);
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va_end(ap);
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}
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void argv_array_pop(struct argv_array *array)
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{
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if (!array->argc)
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return;
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free((char *)array->argv[array->argc - 1]);
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array->argv[array->argc - 1] = NULL;
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array->argc--;
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}
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void argv_array_clear(struct argv_array *array)
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{
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if (array->argv != empty_argv) {
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int i;
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for (i = 0; i < array->argc; i++)
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free((char *)array->argv[i]);
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free(array->argv);
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}
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argv_array_init(array);
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}
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