Accept -m and friends for initial commits and merge commits.

diff --git a/diff-tree.c b/diff-tree.c
index 5b9467d58b064de81bfecfeebd4dfac50e515cca..fc87902a3d2e6a53a619d603993a73893d4a4ae8 100644 (file)
--- a/diff-tree.c
+++ b/diff-tree.c
@@ -395,16 +395,25 @@ static int diff_tree_stdin(char *line)
        return diff_tree_commit(commit, line);
 }
 
-static char *diff_tree_usage =
+static int count_paths(const char **paths)
+{
+       int i = 0;
+       while (*paths++)
+               i++;
+       return i;
+}
+
+static const char diff_tree_usage[] =
 "git-diff-tree [--stdin] [-m] [-s] [-v] [--pretty] [-t] "
 "[<common diff options>] <tree-ish> <tree-ish>"
 COMMON_DIFF_OPTIONS_HELP;
 
-int main(int argc, const char **argv)
+int main(int argc, char **argv)
 {
        int nr_sha1;
        char line[1000];
        unsigned char sha1[2][20];
+       const char *prefix = setup_git_directory();
 
        nr_sha1 = 0;
        for (;;) {
@@ -523,11 +532,11 @@ int main(int argc, const char **argv)
        if (find_copies_harder && detect_rename != DIFF_DETECT_COPY)
                usage(diff_tree_usage);
 
-       if (argc > 0) {
+       paths = get_pathspec(prefix, argv);
+       if (paths) {
                int i;
 
-               paths = argv;
-               nr_paths = argc;
+               nr_paths = count_paths(paths);
                pathlens = xmalloc(nr_paths * sizeof(int));
                for (i=0; i<nr_paths; i++)
                        pathlens[i] = strlen(paths[i]);