pack-objects: remove some double negative logic

Parsing !no_reuse_delta everywhere makes my brain spend extra
cycles wondering each time.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index 8691c99518124420edd1c6ab5ddf70fb0413e37d..afbf3ddc6897ad92b6b00c425194f9924631249b 100644 (file)
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -65,7 +65,8 @@ static struct pack_idx_entry **written_list;
 static uint32_t nr_objects, nr_alloc, nr_result, nr_written;
 
 static int non_empty;
-static int no_reuse_delta, no_reuse_object, keep_unreachable, include_tag;
+static int reuse_delta = 1, reuse_object = 1;
+static int keep_unreachable, include_tag;
 static int local;
 static int incremental;
 static int allow_ofs_delta;
@@ -251,7 +252,7 @@ static unsigned long write_object(struct sha1file *f,
                crc32_begin(f);
 
        obj_type = entry->type;
-       if (no_reuse_object)
+       if (!reuse_object)
                to_reuse = 0;   /* explicit */
        else if (!entry->in_pack)
                to_reuse = 0;   /* can't reuse what we don't have */
@@ -1021,7 +1022,7 @@ static void check_object(struct object_entry *entry)
                        unuse_pack(&w_curs);
                        return;
                case OBJ_REF_DELTA:
-                       if (!no_reuse_delta && !entry->preferred_base)
+                       if (reuse_delta && !entry->preferred_base)
                                base_ref = use_pack(p, &w_curs,
                                                entry->in_pack_offset + used, NULL);
                        entry->in_pack_header_size = used + 20;
@@ -1044,7 +1045,7 @@ static void check_object(struct object_entry *entry)
                                die("delta base offset out of bound for %s",
                                    sha1_to_hex(entry->idx.sha1));
                        ofs = entry->in_pack_offset - ofs;
-                       if (!no_reuse_delta && !entry->preferred_base) {
+                       if (reuse_delta && !entry->preferred_base) {
                                struct revindex_entry *revidx;
                                revidx = find_pack_revindex(p, ofs);
                                base_ref = nth_packed_object_sha1(p, revidx->nr);
@@ -1232,7 +1233,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
         * We do not bother to try a delta that we discarded
         * on an earlier try, but only when reusing delta data.
         */
-       if (!no_reuse_delta && trg_entry->in_pack &&
+       if (reuse_delta && trg_entry->in_pack &&
            trg_entry->in_pack == src_entry->in_pack &&
            trg_entry->in_pack_type != OBJ_REF_DELTA &&
            trg_entry->in_pack_type != OBJ_OFS_DELTA)
@@ -1687,7 +1688,7 @@ static void prepare_pack(int window, int depth)
 
                if (entry->delta)
                        /* This happens if we decided to reuse existing
-                        * delta from a pack.  "!no_reuse_delta &&" is implied.
+                        * delta from a pack.  "reuse_delta &&" is implied.
                         */
                        continue;
 
@@ -2049,11 +2050,11 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
                        continue;
                }
                if (!strcmp("--no-reuse-delta", arg)) {
-                       no_reuse_delta = 1;
+                       reuse_delta = 0;
                        continue;
                }
                if (!strcmp("--no-reuse-object", arg)) {
-                       no_reuse_object = no_reuse_delta = 1;
+                       reuse_object = reuse_delta = 0;
                        continue;
                }
                if (!strcmp("--delta-base-offset", arg)) {