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69e4b3426a
git-commit-vandalism/builtin
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Jeff King 69e4b3426a pack-objects: do not reuse packfiles without --delta-base-offset 
When we are sending a packfile to a remote, we currently try
to reuse a whole chunk of packfile without bothering to look
at the individual objects. This can make things like initial
clones much lighter on the server, as we can just dump the
packfile bytes.

However, it's possible that the other side cannot read our
packfile verbatim. For example, we may have objects stored
as OFS_DELTA, but the client is an antique version of git
that only understands REF_DELTA. We negotiate this
capability over the fetch protocol. A normal pack-objects
run will convert OFS_DELTA into REF_DELTA on the fly, but
the "reuse pack" code path never even looks at the objects.

This patch disables packfile reuse if the other side is
missing any capabilities that we might have used in the
on-disk pack. Right now the only one is OFS_DELTA, but we
may need to expand in the future (e.g., if packv4 introduces
new object types).

We could be more thorough and only disable reuse in this
case when we actually have an OFS_DELTA to send, but:

  1. We almost always will have one, since we prefer
     OFS_DELTA to REF_DELTA when possible. So this case
     would almost never come up.

  2. Looking through the objects defeats the purpose of the
     optimization, which is to do as little work as possible
     to get the bytes to the remote.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-04 15:29:44 -07:00
..
add.c Merge branch 'fc/trivial' 2013-09-17 11:42:34 -07:00
annotate.c
apply.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
archive.c pkt-line: provide a LARGE_PACKET_MAX static buffer 2013-02-20 13:42:22 -08:00
bisect--helper.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
blame.c Merge branch 'jl/submodule-mv' 2013-09-09 14:36:15 -07:00
branch.c Merge branch 'jx/branch-vv-always-compare-with-upstream' 2013-09-20 12:26:57 -07:00
bundle.c
cat-file.c Merge branch 'mg/more-textconv' 2013-10-23 13:21:31 -07:00
check-attr.c Merge branch 'sb/parseopt-boolean-removal' 2013-09-04 12:39:03 -07:00
check-ignore.c Merge branch 'dw/check-ignore-sans-index' 2013-09-20 12:37:32 -07:00
check-mailmap.c builtin: add git-check-mailmap command 2013-07-13 10:19:37 -07:00
check-ref-format.c
checkout-index.c checkout-index: fix negations of even numbers of -n 2013-08-07 08:37:02 -07:00
checkout.c Merge branch 'nd/magic-pathspec' 2013-09-09 14:50:44 -07:00
clean.c Merge branch 'jl/submodule-mv' 2013-09-09 14:36:15 -07:00
clone.c Merge branch 'jk/clone-progress-to-stderr' 2013-10-18 13:49:51 -07:00
column.c i18n: column: mark parseopt strings for translation 2012-08-20 12:23:16 -07:00
commit-tree.c commit-tree: document -S option consistently 2013-03-25 15:01:22 -07:00
commit.c Merge branch 'mm/commit-template-squelch-advice-messages' 2013-09-20 12:36:32 -07:00
config.c Merge branch 'jk/config-int-range-check' 2013-09-12 14:41:00 -07:00
count-objects.c count-objects: add -H option to humanize sizes 2013-04-10 13:27:26 -07:00
credential.c
describe.c Merge branch 'rh/ishes-doc' 2013-09-17 11:42:51 -07:00
diff-files.c convert read_cache_preload() to take struct pathspec 2013-07-15 10:56:08 -07:00
diff-index.c convert read_cache_preload() to take struct pathspec 2013-07-15 10:56:08 -07:00
diff-tree.c
diff.c pathspec: support :(literal) syntax for noglob pathspec 2013-07-15 10:56:09 -07:00
fast-export.c Merge branch 'fc/fast-export' 2013-09-17 11:42:31 -07:00
fetch-pack.c Merge branch 'jc/push-cas' 2013-09-09 14:30:29 -07:00
fetch.c Merge branch 'bk/refs-multi-update' 2013-09-20 12:36:12 -07:00
fmt-merge-msg.c Merge branch 'rt/commentchar-fmt-merge-msg' into maint 2013-04-26 11:10:47 -07:00
for-each-ref.c for-each-ref, quote: convert *_quote_print -> *_quote_buf 2013-07-30 08:06:27 -07:00
fsck.c Merge branch 'jk/free-tree-buffer' 2013-09-17 11:37:33 -07:00
gc.c Merge branch 'sb/parseopt-boolean-removal' 2013-09-04 12:39:03 -07:00
grep.c Merge branch 'mg/more-textconv' 2013-10-23 13:21:31 -07:00
hash-object.c hash-object: replace stdin parsing OPT_BOOLEAN by OPT_COUNTUP 2013-08-07 08:30:55 -07:00
help.c Merge branch 'ph/builtin-srcs-are-in-subdir-these-days' into maint 2013-07-21 22:51:29 -07:00
index-pack.c Merge branch 'jk/free-tree-buffer' 2013-09-17 11:37:33 -07:00
init-db.c i18n: init-db: mark parseopt strings for translation 2012-08-20 12:23:17 -07:00
log.c Merge branch 'mg/more-textconv' 2013-10-23 13:21:31 -07:00
ls-files.c Merge branch 'jc/ls-files-killed-optim' 2013-09-11 15:03:28 -07:00
ls-remote.c ls-remote: document the '--get-url' option 2012-09-07 10:58:35 -07:00
ls-tree.c Merge branch 'jl/submodule-mv' 2013-09-09 14:36:15 -07:00
mailinfo.c Merge branch 'jc/same-encoding' into maint 2012-12-07 14:10:56 -08:00
mailsplit.c mailsplit: sort maildir filenames more cleverly 2013-03-02 22:52:44 -08:00
merge-base.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
merge-file.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
merge-index.c Convert "struct cache_entry *" to "const ..." wherever possible 2013-07-09 09:12:48 -07:00
merge-ours.c
merge-recursive.c
merge-tree.c merge-tree: handle directory/empty conflict correctly 2013-05-06 22:17:00 -07:00
merge.c Merge branch 'rh/ishes-doc' 2013-09-17 11:42:51 -07:00
mktag.c
mktree.c i18n: mktree: mark parseopt strings for translation 2012-08-20 12:23:18 -07:00
mv.c Merge branch 'jl/submodule-mv' 2013-09-09 14:36:15 -07:00
name-rev.c branch, commit, name-rev: ease up boolean conditions 2013-08-07 08:30:30 -07:00
notes.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
pack-objects.c pack-objects: do not reuse packfiles without --delta-base-offset 2014-04-04 15:29:44 -07:00
pack-redundant.c Fix sizeof usage in get_permutations 2012-12-13 11:13:44 -08:00
pack-refs.c pack-refs: merge code from pack-refs.{c,h} into refs.{c,h} 2013-05-01 15:33:11 -07:00
patch-id.c
prune-packed.c prune-packed: avoid implying "1" is DRY_RUN in prune_packed_objects() 2013-05-28 09:20:54 -07:00
prune.c Merge branch 'nd/prune-packed-dryrun-verbose' 2013-06-06 12:17:52 -07:00
push.c Merge branch 'nd/push-no-thin' 2013-09-11 14:56:59 -07:00
read-tree.c diff-lib, read-tree, unpack-trees: mark cache_entry array paramters const 2013-06-02 15:31:14 -07:00
receive-pack.c Merge branch 'bk/refs-multi-update' 2013-09-20 12:36:12 -07:00
reflog.c Merge branch 'bk/refs-multi-update' 2013-09-20 12:36:12 -07:00
remote-ext.c
remote-fd.c
remote.c Merge branch 'po/remote-set-head-usage' 2013-10-14 11:07:29 -07:00
repack.c repack: consider bitmaps when performing repacks 2013-12-30 12:19:23 -08:00
replace.c Merge branch 'cc/replace-with-the-same-type' 2013-09-24 23:35:24 -07:00
rerere.c rerere: convert to use parse_pathspec 2013-07-15 10:56:07 -07:00
reset.c Merge branch 'jk/trailing-slash-in-pathspec' 2013-10-17 15:55:14 -07:00
rev-list.c rev-list: add bitmap mode to speed up object lists 2013-12-30 12:19:22 -08:00
rev-parse.c Merge branch 'sb/parseopt-boolean-removal' 2013-09-04 12:39:03 -07:00
revert.c Merge branch 'hu/cherry-pick-previous-branch' 2013-10-23 13:21:35 -07:00
rm.c rm: re-use parse_pathspec's trailing-slash removal 2013-09-13 12:37:35 -07:00
send-pack.c send-pack: fix parsing of --force-with-lease option 2013-08-02 16:07:45 -07:00
shortlog.c Merge branch 'jk/shortlog-tolerate-broken-commit' 2013-09-24 23:29:00 -07:00
show-branch.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
show-ref.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
stripspace.c builtin/stripspace.c: fix broken indentation 2013-09-06 13:33:17 -07:00
symbolic-ref.c git symbolic-ref --delete $symref 2012-10-21 12:17:38 -07:00
tag.c Merge branch 'bk/refs-multi-update' 2013-09-20 12:36:12 -07:00
tar-tree.c tar-tree: remove dependency on sq_quote_print() 2013-07-30 08:10:35 -07:00
unpack-file.c
unpack-objects.c
update-index.c Merge branch 'jl/submodule-mv' 2013-09-09 14:36:15 -07:00
update-ref.c Merge branch 'bk/refs-multi-update' 2013-09-20 12:36:12 -07:00
update-server-info.c i18n: update-server-info: mark parseopt strings for translation 2012-08-22 10:58:29 -07:00
upload-archive.c pkt-line: provide a LARGE_PACKET_MAX static buffer 2013-02-20 13:42:22 -08:00
var.c
verify-pack.c i18n: verify-pack: mark parseopt strings for translation 2012-08-22 10:58:29 -07:00
verify-tag.c gpg_interface: allow to request status return 2013-02-14 09:30:04 -08:00
write-tree.c i18n: write-tree: mark parseopt strings for translation 2012-08-22 10:58:29 -07:00