mirror of
https://github.com/git/git.git
synced 2024-10-30 05:47:53 +01:00
6b14d7faf0
This moves the path selection logic from individual programs to a new diffcore transformer (diff-tree still needs to have its own for performance reasons). Also the header printing code in diff-tree was tweaked not to produce anything when pickaxe is in effect and there is nothing interesting to report. An interesting example is the following in the GIT archive itself: $ git-whatchanged -p -C -S'or something in a real script' Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
125 lines
3 KiB
C
125 lines
3 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 =
|
|
"git-diff-files [-p] [-q] [-r] [-z] [-M] [-C] [-R] [-S<string>] [paths...]";
|
|
|
|
static int diff_output_format = DIFF_FORMAT_HUMAN;
|
|
static int detect_rename = 0;
|
|
static int reverse_diff = 0;
|
|
static int diff_score_opt = 0;
|
|
static const char *pickaxe = NULL;
|
|
static int silent = 0;
|
|
|
|
static void show_unmerge(const char *path)
|
|
{
|
|
diff_unmerge(path);
|
|
}
|
|
|
|
static void show_file(int pfx, struct cache_entry *ce)
|
|
{
|
|
diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1, ce->name, NULL);
|
|
}
|
|
|
|
static void show_modified(int oldmode, int mode,
|
|
const unsigned char *old_sha1, const unsigned char *sha1,
|
|
char *path)
|
|
{
|
|
diff_change(oldmode, mode, old_sha1, sha1, path, NULL);
|
|
}
|
|
|
|
int main(int argc, const 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"))
|
|
diff_output_format = DIFF_FORMAT_PATCH;
|
|
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"))
|
|
diff_output_format = DIFF_FORMAT_MACHINE;
|
|
else if (!strcmp(argv[1], "-R"))
|
|
reverse_diff = 1;
|
|
else if (!strcmp(argv[1], "-S"))
|
|
pickaxe = argv[1] + 2;
|
|
else if (!strncmp(argv[1], "-M", 2)) {
|
|
diff_score_opt = diff_scoreopt_parse(argv[1]);
|
|
detect_rename = DIFF_DETECT_RENAME;
|
|
}
|
|
else if (!strncmp(argv[1], "-C", 2)) {
|
|
diff_score_opt = diff_scoreopt_parse(argv[1]);
|
|
detect_rename = DIFF_DETECT_COPY;
|
|
}
|
|
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);
|
|
}
|
|
|
|
diff_setup(reverse_diff);
|
|
|
|
for (i = 0; i < entries; i++) {
|
|
struct stat st;
|
|
unsigned int oldmode, mode;
|
|
struct cache_entry *ce = active_cache[i];
|
|
int changed;
|
|
|
|
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 && errno != ENOTDIR) {
|
|
perror(ce->name);
|
|
continue;
|
|
}
|
|
if (silent)
|
|
continue;
|
|
show_file('-', ce);
|
|
continue;
|
|
}
|
|
changed = ce_match_stat(ce, &st);
|
|
if (!changed && detect_rename < DIFF_DETECT_COPY)
|
|
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);
|
|
}
|
|
if (detect_rename)
|
|
diffcore_rename(detect_rename, diff_score_opt);
|
|
diffcore_prune();
|
|
if (pickaxe)
|
|
diffcore_pickaxe(pickaxe);
|
|
if (1 < argc)
|
|
diffcore_pathspec(argv + 1);
|
|
diff_flush(diff_output_format);
|
|
return 0;
|
|
}
|