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git/patch-id.c
Steffen Prohaska 2fb3f6db96 Add calls to git_extract_argv0_path() in programs that call git_config_*
Programs that use git_config need to find the global configuration.
When runtime prefix computation is enabled, this requires that
git_extract_argv0_path() is called early in the program's main().

This commit adds the necessary calls.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-26 00:26:05 -08:00

87 lines
1.6 KiB
C

#include "cache.h"
#include "exec_cmd.h"
static void flush_current_id(int patchlen, unsigned char *id, git_SHA_CTX *c)
{
unsigned char result[20];
char name[50];
if (!patchlen)
return;
git_SHA1_Final(result, c);
memcpy(name, sha1_to_hex(id), 41);
printf("%s %s\n", sha1_to_hex(result), name);
git_SHA1_Init(c);
}
static int remove_space(char *line)
{
char *src = line;
char *dst = line;
unsigned char c;
while ((c = *src++) != '\0') {
if (!isspace(c))
*dst++ = c;
}
return dst - line;
}
static void generate_id_list(void)
{
static unsigned char sha1[20];
static char line[1000];
git_SHA_CTX ctx;
int patchlen = 0;
git_SHA1_Init(&ctx);
while (fgets(line, sizeof(line), stdin) != NULL) {
unsigned char n[20];
char *p = line;
int len;
if (!memcmp(line, "diff-tree ", 10))
p += 10;
else if (!memcmp(line, "commit ", 7))
p += 7;
if (!get_sha1_hex(p, n)) {
flush_current_id(patchlen, sha1, &ctx);
hashcpy(sha1, n);
patchlen = 0;
continue;
}
/* Ignore commit comments */
if (!patchlen && memcmp(line, "diff ", 5))
continue;
/* Ignore git-diff index header */
if (!memcmp(line, "index ", 6))
continue;
/* Ignore line numbers when computing the SHA1 of the patch */
if (!memcmp(line, "@@ -", 4))
continue;
/* Compute the sha without whitespace */
len = remove_space(line);
patchlen += len;
git_SHA1_Update(&ctx, line, len);
}
flush_current_id(patchlen, sha1, &ctx);
}
static const char patch_id_usage[] = "git-patch-id < patch";
int main(int argc, char **argv)
{
if (argc != 1)
usage(patch_id_usage);
git_extract_argv0_path(argv[0]);
generate_id_list();
return 0;
}