X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=diff-cache.c;h=3c8f9e0ee97ef678c707ad0d4f4f765ee268f11e;hb=6b14d7faf0bad026a81a27bac07b47691f621b8f;hp=ff310ab35798a4e2db0774048fde9c3b6ee0161f;hpb=e99d59ff0bff349ef205cef1076e0354c8130680;p=git.git

diff --git a/diff-cache.c b/diff-cache.c
index ff310ab3..3c8f9e0e 100644
--- a/diff-cache.c
+++ b/diff-cache.c
@@ -2,12 +2,12 @@
 #include "diff.h"
 
 static int cached_only = 0;
-static int generate_patch = 0;
+static int diff_output_format = DIFF_FORMAT_HUMAN;
 static int match_nonexisting = 0;
-static int line_termination = '\n';
 static int detect_rename = 0;
 static int reverse_diff = 0;
 static int diff_score_opt = 0;
+static const char *pickaxe = 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)
@@ -70,7 +70,8 @@ static int show_modified(struct cache_entry *old,
 	}
 
 	oldmode = old->ce_mode;
-	if (mode == oldmode && !memcmp(sha1, old->sha1, 20))
+	if (mode == oldmode && !memcmp(sha1, old->sha1, 20) &&
+	    detect_rename < DIFF_DETECT_COPY)
 		return 0;
 
 	mode = ntohl(mode);
@@ -153,9 +154,9 @@ static void mark_merge_entries(void)
 }
 
 static char *diff_cache_usage =
-"git-diff-cache [-p] [-r] [-z] [-m] [-M] [-R] [--cached] <tree-ish>";
+"git-diff-cache [-p] [-r] [-z] [-m] [-M] [-C] [-R] [-S<string>] [--cached] <tree-ish>";
 
-int main(int argc, char **argv)
+int main(int argc, const char **argv)
 {
 	unsigned char tree_sha1[20];
 	void *tree;
@@ -164,7 +165,7 @@ int main(int argc, char **argv)
 
 	read_cache();
 	while (argc > 2) {
-		char *arg = argv[1];
+		const char *arg = argv[1];
 		argv++;
 		argc--;
 		if (!strcmp(arg, "-r")) {
@@ -172,22 +173,31 @@ int main(int argc, char **argv)
 			continue;
 		}
 		if (!strcmp(arg, "-p")) {
-			generate_patch = 1;
+			diff_output_format = DIFF_FORMAT_PATCH;
 			continue;
 		}
 		if (!strncmp(arg, "-M", 2)) {
-			generate_patch = detect_rename = 1;
+			detect_rename = DIFF_DETECT_RENAME;
+			diff_score_opt = diff_scoreopt_parse(arg);
+			continue;
+		}
+		if (!strncmp(arg, "-C", 2)) {
+			detect_rename = DIFF_DETECT_COPY;
 			diff_score_opt = diff_scoreopt_parse(arg);
 			continue;
 		}
 		if (!strcmp(arg, "-z")) {
-			line_termination = '\0';
+			diff_output_format = DIFF_FORMAT_MACHINE;
 			continue;
 		}
 		if (!strcmp(arg, "-R")) {
 			reverse_diff = 1;
 			continue;
 		}
+		if (!strcmp(arg, "-S")) {
+			pickaxe = arg + 2;
+			continue;
+		}
 		if (!strcmp(arg, "-m")) {
 			match_nonexisting = 1;
 			continue;
@@ -199,12 +209,14 @@ int main(int argc, char **argv)
 		usage(diff_cache_usage);
 	}
 
-	if (argc != 2 || get_sha1(argv[1], tree_sha1))
+	if (argc < 2 || get_sha1(argv[1], tree_sha1))
 		usage(diff_cache_usage);
+	argv++;
+	argc--;
+
+	/* The rest is for paths restriction. */
 
-	diff_setup(detect_rename, diff_score_opt, reverse_diff,
-		   (generate_patch ? -1 : line_termination),
-		   NULL, 0);
+	diff_setup(reverse_diff);
 
 	mark_merge_entries();
 
@@ -215,6 +227,13 @@ int main(int argc, char **argv)
 		die("unable to read tree object %s", argv[1]);
 
 	ret = diff_cache(active_cache, active_nr);
-	diff_flush();
+	if (detect_rename)
+		diffcore_rename(detect_rename, diff_score_opt);
+	diffcore_prune();
+	if (pickaxe)
+		diffcore_pickaxe(pickaxe);
+	if (2 <= argc)
+		diffcore_pathspec(argv + 1);
+	diff_flush(diff_output_format);
 	return ret;
 }