X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=diff-tree.c;h=09d16ad6619d7e95959adf2003a8d0f8626491ce;hb=2d2465c01518eb7defa9aa39ae864c9646cfb6f4;hp=382011a2a6d1a701aeb1104991d9abbfcb5b73df;hpb=8ac3a61f59173d4a9a328518be83a25df610a5ef;p=git.git

diff --git a/diff-tree.c b/diff-tree.c
index 382011a2..09d16ad6 100644
--- a/diff-tree.c
+++ b/diff-tree.c
@@ -3,6 +3,7 @@
 #include "commit.h"
 
 static int show_root_diff = 0;
+static int no_commit_id = 0;
 static int verbose_header = 0;
 static int ignore_merges = 1;
 static int read_stdin = 0;
@@ -29,7 +30,8 @@ static int call_diff_flush(void)
 		return 0;
 	}
 	if (header) {
-		printf("%s%c", header, diff_options.line_termination);
+		if (!no_commit_id)
+			printf("%s%c", header, diff_options.line_termination);
 		header = NULL;
 	}
 	diff_flush(&diff_options);
@@ -149,8 +151,10 @@ static int diff_tree_stdin(char *line)
 }
 
 static const char diff_tree_usage[] =
-"git-diff-tree [--stdin] [-m] [-s] [-v] [--pretty] [-t] "
-"[<common diff options>] <tree-ish> <tree-ish>"
+"git-diff-tree [--stdin] [-m] [-s] [-v] [--pretty] [-t] [-r] [--root] "
+"[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]\n"
+"  -r            diff recursively\n"
+"  --root        include the initial commit as diff against /dev/null\n"
 COMMON_DIFF_OPTIONS_HELP;
 
 int main(int argc, const char **argv)
@@ -229,6 +233,10 @@ int main(int argc, const char **argv)
 			show_root_diff = 1;
 			continue;
 		}
+		if (!strcmp(arg, "--no-commit-id")) {
+			no_commit_id = 1;
+			continue;
+		}
 		usage(diff_tree_usage);
 	}
 	if (diff_options.output_format == DIFF_FORMAT_PATCH)