hash-object: work within subdirectory.

When -w is given, it needs to find out where the .git directory
is, so run the setup_git_directory() when we see a -w.

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

diff --git a/hash-object.c b/hash-object.c
index c8c9adb..c3d05a8 100644 (file)
--- a/hash-object.c
+++ b/hash-object.c
@@ -29,6 +29,8 @@ int main(int argc, char **argv)
        int i;
        const char *type = "blob";
        int write_object = 0;
+       const char *prefix;
+       int prefix_length = -1;
 
        for (i = 1 ; i < argc; i++) {
                if (!strcmp(argv[i], "-t")) {
@@ -36,10 +38,20 @@ int main(int argc, char **argv)
                                die(hash_object_usage);
                        type = argv[i];
                }
-               else if (!strcmp(argv[i], "-w"))
+               else if (!strcmp(argv[i], "-w")) {
+                       if (prefix_length < 0) {
+                               prefix = setup_git_directory();
+                               prefix_length = prefix ? strlen(prefix) : 0;
+                       }
                        write_object = 1;
-               else
-                       hash_object(argv[i], type, write_object);
+               }
+               else {
+                       char *arg = argv[i];
+                       if (0 <= prefix_length)
+                               arg = prefix_filename(prefix, prefix_length,
+                                                     arg);
+                       hash_object(arg, type, write_object);
+               }
        }
        return 0;
 }