#include "diff.h"
static int cached_only = 0;
-static int diff_output_format = DIFF_FORMAT_HUMAN;
+static int diff_output_format = DIFF_FORMAT_RAW;
+static int diff_line_termination = '\n';
static int match_nonexisting = 0;
static int detect_rename = 0;
+static int find_copies_harder = 0;
static int diff_setup_opt = 0;
static int diff_score_opt = 0;
static const char *pickaxe = NULL;
static int pickaxe_opts = 0;
static int diff_break_opt = -1;
static const char *orderfile = NULL;
+static const char *diff_filter = NULL;
/* A file entry went away or appeared */
static void show_file(const char *prefix, struct cache_entry *ce, unsigned char *sha1, unsigned int mode)
oldmode = old->ce_mode;
if (mode == oldmode && !memcmp(sha1, old->sha1, 20) &&
- detect_rename < DIFF_DETECT_COPY)
+ !find_copies_harder)
return 0;
mode = ntohl(mode);
return 0;
}
-static int diff_cache(struct cache_entry **ac, int entries)
+static int diff_cache(struct cache_entry **ac, int entries, const char **pathspec)
{
while (entries) {
struct cache_entry *ce = *ac;
int same = (entries > 1) && ce_same_name(ce, ac[1]);
+ if (!ce_path_match(ce, pathspec))
+ goto skip_entry;
+
switch (ce_stage(ce)) {
case 0:
/* No stage 1 entry? That means it's a new file */
die("impossible cache entry stage");
}
+skip_entry:
/*
* Ignore all the different stages for this file,
* we've handled the relevant cases now.
}
}
-static char *diff_cache_usage =
-"git-diff-cache [-p] [-r] [-z] [-m] [-M] [-C] [-R] [-S<string>] [-O<orderfile>] [--cached] <tree-ish> [<path>...]";
+static const char diff_cache_usage[] =
+"git-diff-cache [-m] [--cached] "
+"[<common diff options>] <tree-ish> [<path>...]"
+COMMON_DIFF_OPTIONS_HELP;
-int main(int argc, const char **argv)
+int main(int argc, char **argv)
{
const char *tree_name = NULL;
unsigned char sha1[20];
+ const char *prefix = setup_git_directory();
const char **pathspec = NULL;
void *tree;
unsigned long size;
int ret;
+ int allow_options = 1;
int i;
- read_cache();
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
- if (*arg != '-') {
- if (tree_name) {
- pathspec = argv + i;
+ if (!allow_options || *arg != '-') {
+ if (tree_name)
break;
- }
tree_name = arg;
continue;
}
+ if (!strcmp(arg, "--")) {
+ allow_options = 0;
+ continue;
+ }
if (!strcmp(arg, "-r")) {
/* We accept the -r flag just to look like git-diff-tree */
continue;
}
- if (!strcmp(arg, "-p")) {
+ /* We accept the -u flag as a synonym for "-p" */
+ if (!strcmp(arg, "-p") || !strcmp(arg, "-u")) {
diff_output_format = DIFF_FORMAT_PATCH;
continue;
}
usage(diff_cache_usage);
continue;
}
+ if (!strcmp(arg, "--find-copies-harder")) {
+ find_copies_harder = 1;
+ continue;
+ }
if (!strcmp(arg, "-z")) {
- diff_output_format = DIFF_FORMAT_MACHINE;
+ diff_line_termination = 0;
+ continue;
+ }
+ if (!strcmp(arg, "--name-only")) {
+ diff_output_format = DIFF_FORMAT_NAME;
continue;
}
if (!strcmp(arg, "-R")) {
pickaxe = arg + 2;
continue;
}
+ if (!strncmp(arg, "--diff-filter=", 14)) {
+ diff_filter = arg + 14;
+ continue;
+ }
if (!strncmp(arg, "-O", 2)) {
orderfile = arg + 2;
continue;
usage(diff_cache_usage);
}
+ pathspec = get_pathspec(prefix, argv + i);
+
+ if (find_copies_harder && detect_rename != DIFF_DETECT_COPY)
+ usage(diff_cache_usage);
+
if (!tree_name || get_sha1(tree_name, sha1))
usage(diff_cache_usage);
+ read_cache();
+
/* The rest is for paths restriction. */
diff_setup(diff_setup_opt);
tree = read_object_with_reference(sha1, "tree", &size, NULL);
if (!tree)
die("bad tree object %s", tree_name);
- if (read_tree(tree, size, 1))
+ if (read_tree(tree, size, 1, pathspec))
die("unable to read tree object %s", tree_name);
- ret = diff_cache(active_cache, active_nr);
+ ret = diff_cache(active_cache, active_nr, pathspec);
- diffcore_std(pathspec ? : NULL,
+ diffcore_std(pathspec,
detect_rename, diff_score_opt,
pickaxe, pickaxe_opts,
diff_break_opt,
- orderfile);
- diff_flush(diff_output_format, 1);
+ orderfile, diff_filter);
+ diff_flush(diff_output_format, diff_line_termination);
return ret;
}