Implement git-update-cache --force-remove <path>

This new flag tells git-update-cache to remove the named path even
when the work tree still happens to have the file.  It is used to
update git-merge-one-file-script not to smudge the work tree.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/update-cache.c b/update-cache.c
index 0401372..bb25fa1 100644 (file)
--- a/update-cache.c
+++ b/update-cache.c
@@ -306,6 +306,15 @@ int main(int argc, char **argv)
                                i += 3;
                                continue;
                        }
+                       if (!strcmp(path, "--force-remove")) {
+                               if (argc <= i + 1)
+                                       die("update-cache: --force-remove <path>");
+                               if (remove_file_from_cache(argv[i+1]))
+                                       die("update-cache: --force-remove cannot remove %s", argv[i+1]);
+                               i++;
+                               continue;
+                       }
+
                        if (!strcmp(path, "--ignore-missing")) {
                                not_new = 1;
                                continue;