X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=diff-tree.c;h=826812af83f1f267014860f285fc03286bc5329e;hb=f5cabd13d814bb5c547a13af03bcc42122531141;hp=1960c23561d53e3fd0bea2e131c2f72c09566098;hpb=bf16c71e2f9fc9ca44273f7f4637dce194a49cce;p=git.git

diff --git a/diff-tree.c b/diff-tree.c
index 1960c235..826812af 100644
--- a/diff-tree.c
+++ b/diff-tree.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 
 static int recursive = 0;
+static int line_termination = '\n';
 
 static int diff_tree_sha1(const unsigned char *old, const unsigned char *new, const char *base);
 
@@ -11,7 +12,7 @@ static void update_tree_entry(void **bufp, unsigned long *sizep)
 	int len = strlen(buf) + 1 + 20;
 
 	if (size < len)
-		usage("corrupt tree file");
+		die("corrupt tree file");
 	*bufp = buf + len;
 	*sizep = size - len;
 }
@@ -23,7 +24,7 @@ static const unsigned char *extract(void *tree, unsigned long size, const char *
 	const char *path = strchr(tree, ' ');
 
 	if (!path || size < len + 20 || sscanf(tree, "%o", modep) != 1)
-		usage("corrupt tree file");
+		die("corrupt tree file");
 	*pathp = path+1;
 	return sha1;
 }
@@ -64,7 +65,7 @@ static void show_file(const char *prefix, void *tree, unsigned long size, const
 
 		tree = read_sha1_file(sha1, type, &size);
 		if (!tree || strcmp(type, "tree"))
-			usage("corrupt tree sha %s", sha1_to_hex(sha1));
+			die("corrupt tree sha %s", sha1_to_hex(sha1));
 
 		show_tree(prefix, tree, size, newbase);
 		
@@ -73,7 +74,10 @@ static void show_file(const char *prefix, void *tree, unsigned long size, const
 		return;
 	}
 
-	printf("%s%o %s %s%s%c", prefix, mode, sha1_to_hex(sha1), base, path, 0);
+	printf("%s%o\t%s\t%s\t%s%s%c", prefix, mode,
+	       S_ISDIR(mode) ? "tree" : "blob",
+	       sha1_to_hex(sha1), base, path,
+	       line_termination);
 }
 
 static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, unsigned long size2, const char *base)
@@ -103,7 +107,7 @@ static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, uns
 
 	/*
 	 * If the filemode has changed to/from a directory from/to a regular
-	 * file, we need to consider it a remove and an add. 
+	 * file, we need to consider it a remove and an add.
 	 */
 	if (S_ISDIR(mode1) != S_ISDIR(mode2)) {
 		show_file("-", tree1, size1, base);
@@ -120,7 +124,10 @@ static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, uns
 	}
 
 	strcpy(old_sha1_hex, sha1_to_hex(sha1));
-	printf("*%o->%o %s->%s %s%s%c", mode1, mode2, old_sha1_hex, sha1_to_hex(sha2), base, path1, 0);
+	printf("*%o->%o\t%s\t%s->%s\t%s%s%c", mode1, mode2,
+	       S_ISDIR(mode1) ? "tree" : "blob",
+	       old_sha1_hex, sha1_to_hex(sha2), base, path1,
+	       line_termination);
 	return 0;
 }
 
@@ -148,7 +155,7 @@ static int diff_tree(void *tree1, unsigned long size1, void *tree2, unsigned lon
 			update_tree_entry(&tree2, &size2);
 			continue;
 		}
-		usage("diff-tree: internal error");
+		die("diff-tree: internal error");
 	}
 	return 0;
 }
@@ -162,10 +169,10 @@ static int diff_tree_sha1(const unsigned char *old, const unsigned char *new, co
 
 	tree1 = read_sha1_file(old, type, &size1);
 	if (!tree1 || strcmp(type, "tree"))
-		usage("unable to read source tree");
+		die("unable to read source tree (%s)", sha1_to_hex(old));
 	tree2 = read_sha1_file(new, type, &size2);
 	if (!tree2 || strcmp(type, "tree"))
-		usage("unable to read destination tree");
+		die("unable to read destination tree (%s)", sha1_to_hex(new));
 	retval = diff_tree(tree1, size1, tree2, size2, base);
 	free(tree1);
 	free(tree2);
@@ -184,7 +191,11 @@ int main(int argc, char **argv)
 			recursive = 1;
 			continue;
 		}
-		usage("diff-tree [-R] <tree sha1> <tree sha1>");
+		if (!strcmp(arg, "-z")) {
+			line_termination = '\0';
+			continue;
+		}
+		usage("diff-tree [-r] [-z] <tree sha1> <tree sha1>");
 	}
 
 	if (argc != 3 || get_sha1_hex(argv[1], old) || get_sha1_hex(argv[2], new))