Make "diff-tree" have similar behaviour as "ls-tree" wrt line termination.

Default to the human-readable '\n', but make the scriptable "-z" flag
do the old '\0' behaviour.

diff --git a/diff-tree.c b/diff-tree.c
index da50e57..826812a 100644 (file)
--- 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);
 
@@ -75,7 +76,8 @@ static void show_file(const char *prefix, void *tree, unsigned long size, const
 
        printf("%s%o\t%s\t%s\t%s%s%c", prefix, mode,
               S_ISDIR(mode) ? "tree" : "blob",
-              sha1_to_hex(sha1), base, path, 0);
+              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)
@@ -124,7 +126,8 @@ static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, uns
        strcpy(old_sha1_hex, sha1_to_hex(sha1));
        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, 0);
+              old_sha1_hex, sha1_to_hex(sha2), base, path1,
+              line_termination);
        return 0;
 }
 
@@ -188,7 +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))