Make "git checkout" create new branches on demand

diff --git a/diff-helper.c b/diff-helper.c
index 4da2614fc699ddb6d6a963c1181ac5b372272a1f..63aff6969863f6fb3da94c9866067e1c779831a3 100644 (file)
--- a/diff-helper.c
+++ b/diff-helper.c
@@ -6,14 +6,26 @@
 #include "diff.h"
 
 static const char *pickaxe = NULL;
+static int pickaxe_opts = 0;
+static const char *orderfile = NULL;
+static const char *diff_filter = NULL;
 static int line_termination = '\n';
 static int inter_name_termination = '\t';
 
+static void flush_them(int ac, const char **av)
+{
+       diffcore_std_no_resolve(av + 1,
+                               pickaxe, pickaxe_opts,
+                               orderfile, diff_filter);
+       diff_flush(DIFF_FORMAT_PATCH);
+}
+
 static const char *diff_helper_usage =
-       "git-diff-helper [-z] [-S<string>] paths...";
+"git-diff-helper [-z] [-O<orderfile>] [-S<string>] [--pickaxe-all] [<path>...]";
 
 int main(int ac, const char **av) {
        struct strbuf sb;
+       const char *garbage_flush_format;
 
        strbuf_init(&sb);
 
@@ -23,10 +35,18 @@ int main(int ac, const char **av) {
                else if (av[1][1] == 'S') {
                        pickaxe = av[1] + 2;
                }
+               else if (!strcmp(av[1], "--pickaxe-all"))
+                       pickaxe_opts = DIFF_PICKAXE_ALL;
+               else if (!strncmp(av[1], "--diff-filter=", 14))
+                       diff_filter = av[1] + 14;
+               else if (!strncmp(av[1], "-O", 2))
+                       orderfile = av[1] + 2;
                else
                        usage(diff_helper_usage);
                ac--; av++;
        }
+       garbage_flush_format = (line_termination == 0) ? "%s" : "%s\n";
+
        /* the remaining parameters are paths patterns */
 
        diff_setup(0);
@@ -74,17 +94,16 @@ int main(int ac, const char **av) {
                        if (!strchr("MCRNDU", status))
                                break;
                        two_paths = score = 0;
-                       if (status == 'R' || status == 'C') {
+                       if (status == 'R' || status == 'C')
                                two_paths = 1;
-                               sscanf(cp, "%d", &score);
-                               if (line_termination) {
-                                       cp = strchr(cp,
-                                                   inter_name_termination);
-                                       if (!cp)
-                                               break;
-                               }
-                       }
 
+                       /* pick up score if exists */
+                       if (sscanf(cp, "%d", &score) != 1)
+                               score = 0;
+                       cp = strchr(cp,
+                                   inter_name_termination);
+                       if (!cp)
+                               break;
                        if (*cp++ != inter_name_termination)
                                break;
 
@@ -126,17 +145,9 @@ int main(int ac, const char **av) {
                                          new_path);
                        continue;
                }
-               if (pickaxe)
-                       diffcore_pickaxe(pickaxe);
-               if (1 < ac)
-                       diffcore_pathspec(av + 1);
-               diff_flush(DIFF_FORMAT_PATCH, 0);
-               printf("%s\n", sb.buf);
+               flush_them(ac, av);
+               printf(garbage_flush_format, sb.buf);
        }
-       if (pickaxe)
-               diffcore_pickaxe(pickaxe);
-       if (1 < ac)
-               diffcore_pathspec(av + 1);
-       diff_flush(DIFF_FORMAT_PATCH, 0);
+       flush_them(ac, av);
        return 0;
 }