X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=diff-files.c;h=d7cfad79e7aae77bb121cf5c678ba02c98184c3e;hb=19c58fb84d2fba1a1bb8bd8fef44c0463aa4e236;hp=fdd7dd4b0cc8c92a18ddaf0bcf8c9675fcab303b;hpb=a3df180138b85a603656582bde6df757095618cf;p=git.git

diff --git a/diff-files.c b/diff-files.c
index fdd7dd4b..d7cfad79 100644
--- a/diff-files.c
+++ b/diff-files.c
@@ -6,71 +6,42 @@
 #include "cache.h"
 #include "diff.h"
 
-static const char *show_diff_usage =
-"show-diff [-p] [-q] [-r] [-z] [paths...]";
+static const char *diff_files_usage =
+"git-diff-files [-p] [-q] [-r] [-z] [-M] [-C] [-R] [-S<string>] [paths...]";
 
-static int generate_patch = 0;
-static int line_termination = '\n';
+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 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);
+	diff_unmerge(path);
 }
 
 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);
+	diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1, ce->name, NULL);
 }
 
 static void show_modified(int oldmode, int mode,
-			  const char *old_sha1, const char *sha1,
+			  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);
+	diff_change(oldmode, mode, old_sha1, sha1, path, NULL);
 }
 
-int main(int argc, char **argv)
+int main(int argc, const char **argv)
 {
-	static const char null_sha1[20] = { 0, };
+	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;
+			diff_output_format = DIFF_FORMAT_PATCH;
 		else if (!strcmp(argv[1], "-q"))
 			silent = 1;
 		else if (!strcmp(argv[1], "-r"))
@@ -78,9 +49,21 @@ int main(int argc, char **argv)
 		else if (!strcmp(argv[1], "-s"))
 			; /* no-op */
 		else if (!strcmp(argv[1], "-z"))
-			line_termination = 0;
+			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(show_diff_usage);
+			usage(diff_files_usage);
 		argv++; argc--;
 	}
 
@@ -92,16 +75,14 @@ int main(int argc, char **argv)
 		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 (1 < argc &&
-		    ! matches_pathspec(ce, argv+1, argc-1))
-			continue;
-
 		if (ce_stage(ce)) {
 			show_unmerge(ce->name);
 			while (i < entries &&
@@ -110,26 +91,34 @@ int main(int argc, char **argv)
 			i--; /* compensate for loop control increments */
 			continue;
 		}
- 
-		if (stat(ce->name, &st) < 0) {
-			if (errno != ENOENT) {
+
+		if (lstat(ce->name, &st) < 0) {
+			if (errno != ENOENT && errno != ENOTDIR) {
 				perror(ce->name);
 				continue;
-			}	
+			}
 			if (silent)
 				continue;
 			show_file('-', ce);
 			continue;
 		}
-		changed = cache_match_stat(ce, &st);
-		if (!changed)
+		changed = ce_match_stat(ce, &st);
+		if (!changed && detect_rename < DIFF_DETECT_COPY)
 			continue;
 
 		oldmode = ntohl(ce->ce_mode);
-		mode = S_IFREG | ce_permissions(st.st_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);
+	if (pickaxe)
+		diffcore_pickaxe(pickaxe);
+	if (1 < argc)
+		diffcore_pathspec(argv + 1);
+	diff_flush(diff_output_format, 1);
 	return 0;
 }