X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=diff-files.c;h=17899390b80f4bfc03718e92029b5c4de65055b6;hb=69779a562a171d9b70bbb17b89e076bd6b16ae6c;hp=4e0a306ef580036beb21c24bb8b520563b35c172;hpb=6b14d7faf0bad026a81a27bac07b47691f621b8f;p=git.git

diff --git a/diff-files.c b/diff-files.c
index 4e0a306e..17899390 100644
--- a/diff-files.c
+++ b/diff-files.c
@@ -6,67 +6,76 @@
 #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 const char diff_files_usage[] =
+"git-diff-files [-q] "
+"[<common diff options>] [<path>...]"
+COMMON_DIFF_OPTIONS_HELP;
 
-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 struct diff_options diff_options;
 static int silent = 0;
 
 static void show_unmerge(const char *path)
 {
-	diff_unmerge(path);
+	diff_unmerge(&diff_options, path);
 }
 
 static void show_file(int pfx, struct cache_entry *ce)
 {
-	diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1, ce->name, NULL);
+	diff_addremove(&diff_options, 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);
+	diff_change(&diff_options, 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;
+	const char **pathspec;
+	const char *prefix = setup_git_directory();
+	int entries, i;
 
+	git_config(git_default_config);
+	diff_setup(&diff_options);
 	while (1 < argc && argv[1][0] == '-') {
-		if (!strcmp(argv[1], "-p"))
-			diff_output_format = DIFF_FORMAT_PATCH;
-		else if (!strcmp(argv[1], "-q"))
+		if (!strcmp(argv[1], "--")) {
+			argv++;
+			argc--;
+			break;
+		}
+		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 {
+			int diff_opt_cnt;
+			diff_opt_cnt = diff_opt_parse(&diff_options,
+						      argv+1, argc-1);
+			if (diff_opt_cnt < 0)
+				usage(diff_files_usage);
+			else if (diff_opt_cnt) {
+				argv += diff_opt_cnt;
+				argc -= diff_opt_cnt;
+				continue;
+			}
+			else
+				usage(diff_files_usage);
 		}
-		else
-			usage(diff_files_usage);
 		argv++; argc--;
 	}
 
+	/* Find the directory, and set up the pathspec */
+	pathspec = get_pathspec(prefix, argv + 1);
+	entries = read_cache();
+
+	if (diff_setup_done(&diff_options) < 0)
+		usage(diff_files_usage);
+
 	/* At this point, if argc == 1, then we are doing everything.
 	 * Otherwise argv[1] .. argv[argc-1] have the explicit paths.
 	 */
@@ -75,14 +84,15 @@ int main(int argc, const char **argv)
 		exit(1);
 	}
 
-	diff_setup(reverse_diff);
-
 	for (i = 0; i < entries; i++) {
 		struct stat st;
-		unsigned int oldmode, mode;
+		unsigned int oldmode, newmode;
 		struct cache_entry *ce = active_cache[i];
 		int changed;
 
+		if (!ce_path_match(ce, pathspec))
+			continue;
+
 		if (ce_stage(ce)) {
 			show_unmerge(ce->name);
 			while (i < entries &&
@@ -103,23 +113,20 @@ int main(int argc, const char **argv)
 			continue;
 		}
 		changed = ce_match_stat(ce, &st);
-		if (!changed && detect_rename < DIFF_DETECT_COPY)
+		if (!changed && !diff_options.find_copies_harder)
 			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,
+		newmode = DIFF_FILE_CANON_MODE(st.st_mode);
+		if (!trust_executable_bit &&
+		    S_ISREG(newmode) && S_ISREG(oldmode) &&
+		    ((newmode ^ oldmode) == 0111))
+			newmode = oldmode;
+		show_modified(oldmode, newmode,
+			      ce->sha1, (changed ? null_sha1 : ce->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);
+	diffcore_std(&diff_options);
+	diff_flush(&diff_options);
 	return 0;
 }