mirror of
https://github.com/git/git.git
synced 2024-11-28 12:34:08 +08:00
bf0f910d1d
- Raw hashes should be unsigned char. - String functions want signed char. - Hash and compress functions want unsigned char. Signed-off By: Brian Gerst <bgerst@didntduck.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
137 lines
3.0 KiB
C
137 lines
3.0 KiB
C
/*
|
|
* GIT - The information manager from hell
|
|
*
|
|
* Copyright (C) Linus Torvalds, 2005
|
|
*/
|
|
#include "cache.h"
|
|
#include "diff.h"
|
|
|
|
static const char *diff_files_usage =
|
|
"diff-files [-p] [-q] [-r] [-z] [paths...]";
|
|
|
|
static int generate_patch = 0;
|
|
static int line_termination = '\n';
|
|
static int silent = 0;
|
|
|
|
static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt)
|
|
{
|
|
int i;
|
|
int namelen = ce_namelen(ce);
|
|
for (i = 0; i < cnt; i++) {
|
|
int speclen = strlen(spec[i]);
|
|
if (! strncmp(spec[i], ce->name, speclen) &&
|
|
speclen <= namelen &&
|
|
(ce->name[speclen] == 0 ||
|
|
ce->name[speclen] == '/'))
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void show_unmerge(const char *path)
|
|
{
|
|
if (generate_patch)
|
|
diff_unmerge(path);
|
|
else
|
|
printf("U %s%c", path, line_termination);
|
|
}
|
|
|
|
static void show_file(int pfx, struct cache_entry *ce)
|
|
{
|
|
if (generate_patch)
|
|
diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1,
|
|
ce->name, NULL);
|
|
else
|
|
printf("%c%06o\t%s\t%s\t%s%c",
|
|
pfx, ntohl(ce->ce_mode), "blob",
|
|
sha1_to_hex(ce->sha1), ce->name, line_termination);
|
|
}
|
|
|
|
static void show_modified(int oldmode, int mode,
|
|
const unsigned char *old_sha1, const unsigned char *sha1,
|
|
char *path)
|
|
{
|
|
char old_sha1_hex[41];
|
|
strcpy(old_sha1_hex, sha1_to_hex(old_sha1));
|
|
|
|
if (generate_patch)
|
|
diff_change(oldmode, mode, old_sha1, sha1, path, NULL);
|
|
else
|
|
printf("*%06o->%06o\tblob\t%s->%s\t%s%c",
|
|
oldmode, mode, old_sha1_hex, sha1_to_hex(sha1), path,
|
|
line_termination);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
static const unsigned char null_sha1[20] = { 0, };
|
|
int entries = read_cache();
|
|
int i;
|
|
|
|
while (1 < argc && argv[1][0] == '-') {
|
|
if (!strcmp(argv[1], "-p"))
|
|
generate_patch = 1;
|
|
else if (!strcmp(argv[1], "-q"))
|
|
silent = 1;
|
|
else if (!strcmp(argv[1], "-r"))
|
|
; /* no-op */
|
|
else if (!strcmp(argv[1], "-s"))
|
|
; /* no-op */
|
|
else if (!strcmp(argv[1], "-z"))
|
|
line_termination = 0;
|
|
else
|
|
usage(diff_files_usage);
|
|
argv++; argc--;
|
|
}
|
|
|
|
/* At this point, if argc == 1, then we are doing everything.
|
|
* Otherwise argv[1] .. argv[argc-1] have the explicit paths.
|
|
*/
|
|
if (entries < 0) {
|
|
perror("read_cache");
|
|
exit(1);
|
|
}
|
|
|
|
for (i = 0; i < entries; i++) {
|
|
struct stat st;
|
|
unsigned int oldmode, mode;
|
|
struct cache_entry *ce = active_cache[i];
|
|
int changed;
|
|
|
|
if (1 < argc &&
|
|
! matches_pathspec(ce, argv+1, argc-1))
|
|
continue;
|
|
|
|
if (ce_stage(ce)) {
|
|
show_unmerge(ce->name);
|
|
while (i < entries &&
|
|
!strcmp(ce->name, active_cache[i]->name))
|
|
i++;
|
|
i--; /* compensate for loop control increments */
|
|
continue;
|
|
}
|
|
|
|
if (lstat(ce->name, &st) < 0) {
|
|
if (errno != ENOENT) {
|
|
perror(ce->name);
|
|
continue;
|
|
}
|
|
if (silent)
|
|
continue;
|
|
show_file('-', ce);
|
|
continue;
|
|
}
|
|
changed = ce_match_stat(ce, &st);
|
|
if (!changed)
|
|
continue;
|
|
|
|
oldmode = ntohl(ce->ce_mode);
|
|
mode = (S_ISLNK(st.st_mode) ? S_IFLNK :
|
|
S_IFREG | ce_permissions(st.st_mode));
|
|
|
|
show_modified(oldmode, mode, ce->sha1, null_sha1,
|
|
ce->name);
|
|
}
|
|
return 0;
|
|
}
|