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-rw-r--r--Documentation/git-pack-objects.txt7
-rw-r--r--builtin-pack-objects.c22
2 files changed, 21 insertions, 8 deletions
diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt
index bd3ee456e..ce892147d 100644
--- a/Documentation/git-pack-objects.txt
+++ b/Documentation/git-pack-objects.txt
@@ -127,6 +127,13 @@ base-name::
This flag tells the command not to reuse existing deltas
but compute them from scratch.
+--no-reuse-object::
+ This flag tells the command not to reuse existing object data at all,
+ including non deltified object, forcing recompression of everything.
+ This implies --no-reuse-delta. Useful only in the obscur case where
+ wholesale enforcement of a different compression level on the
+ packed data is desired.
+
--delta-base-offset::
A packed archive can express base object of a delta as
either 20-byte object name or as an offset in the
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index 966f843e4..d94c79a33 100644
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -17,9 +17,9 @@
static const char pack_usage[] = "\
git-pack-objects [{ -q | --progress | --all-progress }] \n\
[--local] [--incremental] [--window=N] [--depth=N] \n\
- [--no-reuse-delta] [--delta-base-offset] [--non-empty] \n\
- [--revs [--unpacked | --all]*] [--reflog] [--stdout | base-name] \n\
- [<ref-list | <object-list]";
+ [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset] \n\
+ [--non-empty] [--revs [--unpacked | --all]*] [--reflog] \n\
+ [--stdout | base-name] [<ref-list | <object-list]";
struct object_entry {
unsigned char sha1[20];
@@ -55,7 +55,7 @@ static struct object_entry *objects;
static uint32_t nr_objects, nr_alloc, nr_result;
static int non_empty;
-static int no_reuse_delta;
+static int no_reuse_delta, no_reuse_object;
static int local;
static int incremental;
static int allow_ofs_delta;
@@ -412,7 +412,9 @@ static unsigned long write_object(struct sha1file *f,
crc32_begin(f);
obj_type = entry->type;
- if (! entry->in_pack)
+ if (no_reuse_object)
+ to_reuse = 0; /* explicit */
+ else if (!entry->in_pack)
to_reuse = 0; /* can't reuse what we don't have */
else if (obj_type == OBJ_REF_DELTA || obj_type == OBJ_OFS_DELTA)
to_reuse = 1; /* check_object() decided it for us */
@@ -425,7 +427,7 @@ static unsigned long write_object(struct sha1file *f,
* and we do not need to deltify it.
*/
- if (!entry->in_pack && !entry->delta) {
+ if (!no_reuse_object && !entry->in_pack && !entry->delta) {
unsigned char *map;
unsigned long mapsize;
map = map_sha1_file(entry->sha1, &mapsize);
@@ -1125,8 +1127,8 @@ static void check_object(struct object_entry *entry)
buf = use_pack(p, &w_curs, entry->in_pack_offset, &avail);
/*
- * We want in_pack_type even if we do not reuse delta.
- * There is no point not reusing non-delta representations.
+ * We want in_pack_type even if we do not reuse delta
+ * since non-delta representations could still be reused.
*/
used = unpack_object_header_gently(buf, avail,
&entry->in_pack_type,
@@ -1655,6 +1657,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
no_reuse_delta = 1;
continue;
}
+ if (!strcmp("--no-reuse-object", arg)) {
+ no_reuse_object = no_reuse_delta = 1;
+ continue;
+ }
if (!strcmp("--delta-base-offset", arg)) {
allow_ofs_delta = 1;
continue;