notes: implement helpers needed for note copying during rewrite

diff --git a/builtin-fast-export.c b/builtin-fast-export.c
index c48c18d0c89d1050a531d0521135c2bed9e3b77d..b0a4029c94d1bdb1c673fe604cdbfec93df875aa 100644 (file)
--- a/builtin-fast-export.c
+++ b/builtin-fast-export.c
@@ -26,6 +26,7 @@ static int progress;
 static enum { ABORT, VERBATIM, WARN, STRIP } signed_tag_mode = ABORT;
 static enum { ERROR, DROP, REWRITE } tag_of_filtered_mode = ABORT;
 static int fake_missing_tagger;
+static int no_data;
 
 static int parse_opt_signed_tag_mode(const struct option *opt,
                                     const char *arg, int unset)
@@ -116,6 +117,9 @@ static void handle_object(const unsigned char *sha1)
        char *buf;
        struct object *object;
 
+       if (no_data)
+               return;
+
        if (is_null_sha1(sha1))
                return;
 
@@ -173,7 +177,7 @@ static void show_filemodify(struct diff_queue_struct *q,
                         * Links refer to objects in another repositories;
                         * output the SHA-1 verbatim.
                         */
-                       if (S_ISGITLINK(spec->mode))
+                       if (no_data || S_ISGITLINK(spec->mode))
                                printf("M %06o %s %s\n", spec->mode,
                                       sha1_to_hex(spec->sha1), spec->path);
                        else {
@@ -580,6 +584,9 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
                             "Import marks from this file"),
                OPT_BOOLEAN(0, "fake-missing-tagger", &fake_missing_tagger,
                             "Fake a tagger when tags lack one"),
+               { OPTION_NEGBIT, 0, "data", &no_data, NULL,
+                       "Skip output of blob data",
+                       PARSE_OPT_NOARG | PARSE_OPT_NEGHELP, NULL, 1 },
                OPT_END()
        };