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Taylor Blau 4805125710 pack-objects: prepare write_reused_pack() for multi-pack reuse 
The function `write_reused_pack()` within `builtin/pack-objects.c` is
responsible for performing pack-reuse on a single pack, and has two main
functions:

  - it dispatches a call to `write_reused_pack_verbatim()` to see if we
    can reuse portions of the packfile in whole-word chunks

  - for any remaining objects (that is, any objects that appear after
    the first "gap" in the bitmap), call write_reused_pack_one() on that
    object to record it for reuse.

Prepare this function for multi-pack reuse by removing the assumption
that the bit position corresponding to the first object being reused
from a given pack must be at bit position zero.

The changes in this function are mostly straightforward. Initialize `i`
to the position of the first word to contain bits corresponding to that
reuse pack. In most situations, we throw the initialized value away,
since we end up replacing it with the return value from
write_reused_pack_verbatim(), moving us past the section of whole words
that we reused.

Likewise, modify the per-object loop to ignore any bits at the beginning
of the first word that do not belong to the pack currently being reused,
as well as skip to the "done" section once we have processed the last
bit corresponding to this pack.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-14 14:38:08 -08:00
..
add.c attr: enable attr pathspec magic for git-add and git-stash 2023-11-04 17:00:27 +09:00
am.c Merge branch 'rs/fix-arghelp' 2023-11-07 10:26:43 +09:00
annotate.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
apply.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
archive.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
bisect.c doc/git-bisect: clarify git bisect run syntax 2023-10-23 13:04:47 -07:00
blame.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
branch.c Merge branch 'vd/for-each-ref-unsorted-optimization' 2023-12-09 16:37:50 -08:00
bugreport.c bugreport: reject positional arguments 2023-10-29 08:56:17 +09:00
bundle.c Merge branch 'rs/bundle-parseopt-cleanup' 2023-08-07 11:57:18 -07:00
cat-file.c doc/cat-file: make synopsis and description less confusing 2023-10-09 12:46:33 -07:00
check-attr.c check-attr: integrate with sparse-index 2023-08-11 09:44:52 -07:00
check-ignore.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
check-mailmap.c builtin.h: remove unneccessary includes 2023-06-21 13:39:54 -07:00
check-ref-format.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
checkout--worker.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
checkout-index.c parse-options: prefer opt->value to globals in callbacks 2023-09-05 14:48:17 -07:00
checkout.c Merge branch 'jc/unresolve-removal' 2023-10-02 11:20:00 -07:00
clean.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
clone.c Merge branch 'jc/transport-parseopt-fix' 2023-07-27 15:26:37 -07:00
column.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
commit-graph.c Merge branch 'jk/commit-graph-leak-fixes' 2023-10-13 14:18:28 -07:00
commit-tree.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
commit.c Merge branch 'jc/commit-new-underscore-index-fix' into maint-2.42 2023-11-02 16:53:28 +09:00
config.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
count-objects.c count-objects: mark unused parameter in alternates callback 2023-07-13 17:24:00 -07:00
credential-cache--daemon.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
credential-cache.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
credential-store.c Merge branch 'cw/strbuf-cleanup' 2023-07-06 11:54:46 -07:00
credential.c builtins: mark unused prefix parameters 2023-03-28 14:11:24 -07:00
describe.c Merge branch 'jk/unused-post-2.42-part2' 2023-09-13 10:07:56 -07:00
diagnose.c object-file.h: move declarations for object-file.c functions from cache.h 2023-04-11 08:52:10 -07:00
diff-files.c diff: drop useless "status" parameter from diff_result_code() 2023-08-21 15:33:24 -07:00
diff-index.c diff: drop useless "status" parameter from diff_result_code() 2023-08-21 15:33:24 -07:00
diff-tree.c diff: drop useless "status" parameter from diff_result_code() 2023-08-21 15:33:24 -07:00
diff.c diff --stat: set the width defaults in a helper function 2023-09-29 15:46:06 -07:00
difftool.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
fast-export.c parse-options: prefer opt->value to globals in callbacks 2023-09-05 14:48:17 -07:00
fast-import.c Merge branch 'ew/hash-with-openssl-evp' 2023-09-13 10:07:57 -07:00
fetch-pack.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
fetch.c Merge branch 'jk/unused-post-2.42-part2' 2023-09-13 10:07:56 -07:00
fmt-merge-msg.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
for-each-ref.c ref-filter.h: add functions for filter/format & format-only 2023-11-16 14:02:59 +09:00
for-each-repo.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
fsck.c fsck: use enum object_type for fsck_walk callback 2023-08-19 21:17:32 -07:00
fsmonitor--daemon.c run-command: mark unused parameters in start_bg_wait callbacks 2023-09-18 15:56:15 -07:00
gc.c Merge branch 'tb/repack-max-cruft-size' 2023-10-18 13:25:41 -07:00
get-tar-commit-id.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
grep.c Merge branch 'jc/grep-f-relative-to-cwd' 2023-11-07 10:26:43 +09:00
hash-object.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
help.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
hook.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
index-pack.c Merge branch 'ew/hash-with-openssl-evp' 2023-09-13 10:07:57 -07:00
init-db.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
interpret-trailers.c Merge branch 'la/trailer-test-and-doc-updates' 2023-10-13 14:18:27 -07:00
log.c format-patch: fix ignored encode_email_headers for cover letter 2023-11-10 11:04:11 +09:00
ls-files.c Merge branch 'rs/strbuf-expand-step' 2023-07-06 11:54:45 -07:00
ls-remote.c ref-filter.c: really don't sort when using --no-sort 2023-11-16 14:02:58 +09:00
ls-tree.c ls-tree: mark unused parameter in callback 2023-08-29 17:56:24 -07:00
mailinfo.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
mailsplit.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
merge-base.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
merge-file.c merge-file: add an option to process object IDs 2023-11-02 08:51:40 +09:00
merge-index.c read-cache*.h: move declarations for read-cache.c functions from cache.h 2023-06-21 13:39:53 -07:00
merge-ours.c diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
merge-recursive.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
merge-tree.c merge: introduce {copy|clear}_merge_options() 2023-10-11 13:37:47 -07:00
merge.c Merge branch 'jk/commit-graph-leak-fixes' 2023-10-13 14:18:28 -07:00
mktag.c fsck: mark unused parameters in various fsck callbacks 2023-07-13 17:24:00 -07:00
mktree.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
multi-pack-index.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
mv.c Merge branch 'jc/mv-d-to-d-error-message-fix' into maint-2.42 2023-11-02 16:53:22 +09:00
name-rev.c name-rev: use OPT_HIDDEN_BOOL for --peel-tag 2023-09-05 14:58:44 -07:00
notes.c Merge branch 'tl/notes-separator' 2023-07-06 11:54:47 -07:00
pack-objects.c pack-objects: prepare write_reused_pack() for multi-pack reuse 2023-12-14 14:38:08 -08:00
pack-redundant.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
pack-refs.c pack-refs: teach pack-refs --include option 2023-05-12 14:54:14 -07:00
patch-id.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
prune-packed.c treewide: be explicit about dependence on gettext.h 2023-03-21 10:56:51 -07:00
prune.c Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
pull.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
push.c Merge branch 'jc/transport-parseopt-fix' 2023-07-27 15:26:37 -07:00
range-diff.c diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
read-tree.c parse-options: mark unused "opt" parameter in callbacks 2023-09-05 14:48:17 -07:00
rebase.c rebase: support --autosquash without -i 2023-11-16 09:18:22 +09:00
receive-pack.c Merge branch 'ts/unpacklimit-config-fix' into maint-2.42 2023-11-02 16:53:16 +09:00
reflog.c Merge branch 'kn/rev-list-missing-fix' 2023-11-08 11:04:01 +09:00
remote-ext.c builtins: annotate always-empty prefix parameters 2023-03-28 14:11:24 -07:00
remote-fd.c builtins: annotate always-empty prefix parameters 2023-03-28 14:11:24 -07:00
remote.c Merge branch 'jc/parse-options-short-help' 2023-08-04 10:52:31 -07:00
repack.c Merge branch 'tb/repack-max-cruft-size' 2023-10-18 13:25:41 -07:00
replace.c replace: mark unused parameter in each_mergetag_fn callback 2023-07-13 17:24:00 -07:00
rerere.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
reset.c Merge branch 'jc/parse-options-reset' 2023-07-27 15:26:37 -07:00
rev-list.c rev-list: add commit object support in --missing option 2023-11-01 12:07:18 +09:00
rev-parse.c Merge branch 'jk/unused-parameter' 2023-07-25 12:05:24 -07:00
revert.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
rm.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
send-pack.c config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
shortlog.c diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
show-branch.c Merge branch 'jc/parse-options-show-branch' 2023-07-27 15:26:37 -07:00
show-index.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
show-ref.c builtin/show-ref: add new mode to check for reference existence 2023-11-01 12:09:01 +09:00
sparse-checkout.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
stash.c Merge branch 'jc/fail-stash-to-store-non-stash' 2023-10-23 13:56:37 -07:00
stripspace.c Merge branch 'cw/strbuf-cleanup' 2023-07-06 11:54:46 -07:00
submodule--helper.c submodule--helper: return error from set-url when modifying failed 2023-10-03 15:30:43 -07:00
symbolic-ref.c git-compat-util: move strbuf.c funcs to its header 2023-07-05 11:41:18 -07:00
tag.c ref-filter.h: add functions for filter/format & format-only 2023-11-16 14:02:59 +09:00
unpack-file.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
unpack-objects.c Merge branch 'ew/hash-with-openssl-evp' 2023-09-13 10:07:57 -07:00
update-index.c Merge branch 'jc/unresolve-removal' 2023-10-02 11:20:00 -07:00
update-ref.c update-ref: mark unused parameter in parser callbacks 2023-08-29 17:56:26 -07:00
update-server-info.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
upload-archive.c repository: remove unnecessary include of path.h 2023-06-21 13:39:53 -07:00
upload-pack.c Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
var.c Merge branch 'bc/more-git-var' into maint-2.42 2023-11-02 16:53:23 +09:00
verify-commit.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
verify-pack.c builtin.h: remove unneccessary includes 2023-06-21 13:39:54 -07:00
verify-tag.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
worktree.c Merge branch 'ja/worktree-orphan' into maint-2.42 2023-11-02 16:53:21 +09:00
write-tree.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00