git-commit-vandalism/Documentation
Taylor Blau 9218c6a40c midx: allow marking a pack as preferred
When multiple packs in the multi-pack index contain the same object, the
MIDX machinery must make a choice about which pack it associates with
that object. Prior to this patch, the lowest-ordered[1] pack was always
selected.

Pack selection for duplicate objects is relatively unimportant today,
but it will become important for multi-pack bitmaps. This is because we
can only invoke the pack-reuse mechanism when all of the bits for reused
objects come from the reuse pack (in order to ensure that all reused
deltas can find their base objects in the same pack).

To encourage the pack selection process to prefer one pack over another
(the pack to be preferred is the one a caller would like to later use as
a reuse pack), introduce the concept of a "preferred pack". When
provided, the MIDX code will always prefer an object found in a
preferred pack over any other.

No format changes are required to store the preferred pack, since it
will be able to be inferred with a corresponding MIDX bitmap, by looking
up the pack associated with the object in the first bit position (this
ordering is described in detail in a subsequent commit).

[1]: the ordering is specified by MIDX internals; for our purposes we
can consider the "lowest ordered" pack to be "the one with the
most-recent mtime.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-04-01 13:07:37 -07:00
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config Merge branch 'ds/maintenance-pack-refs' 2021-02-17 17:21:42 -08:00
howto Merge branch 'js/pu-to-seen' 2020-07-06 22:09:16 -07:00
RelNotes The tenth batch 2021-02-22 16:12:43 -08:00
technical midx: allow marking a pack as preferred 2021-04-01 13:07:37 -07:00
.gitattributes
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asciidoc.conf Doc: drop support for docbook-xsl before 1.72.0 2020-03-29 09:25:38 -07:00
asciidoctor-extensions.rb
blame-options.txt blame-options.txt: also mention 'funcname' in '-L' description 2020-11-01 15:54:14 -08:00
build-docdep.perl
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cmd-list.perl git.txt: add list of guides 2020-08-04 18:34:02 -07:00
CodingGuidelines Merge branch 'dl/python-2.7-is-the-floor-version' 2020-06-17 21:54:05 -07:00
config.txt ls-refs: report unborn targets of symrefs 2021-02-05 13:49:53 -08:00
date-formats.txt date-formats.txt: fix list continuation 2020-05-18 13:18:56 -07:00
diff-format.txt doc: indent multi-line items in list 2019-12-13 12:18:07 -08:00
diff-generate-patch.txt doc/diff-generate-patch: mention new --diff-merges option 2020-12-21 13:47:32 -08:00
diff-options.txt Merge branch 'so/log-diff-merge' 2021-02-05 16:40:44 -08:00
doc-diff doc-diff: use single-colon rule in rendering Makefile 2020-02-18 13:53:30 -08:00
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fetch-options.txt fetch: implement support for atomic reference updates 2021-01-12 12:06:15 -08:00
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git-add.txt add: support the --pathspec-from-file option 2019-12-04 10:10:37 -08:00
git-am.txt Documentation: stylistically normalize references to Signed-off-by: 2020-10-20 11:57:40 -07:00
git-annotate.txt
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git-bisect-lk2009.txt git-bisect-lk2009: make continuation of list indented 2020-10-08 14:01:15 -07:00
git-bisect.txt bisect: swap command-line options in documentation 2020-08-28 14:06:06 -07:00
git-blame.txt mailmap doc: create a new "gitmailmap(5)" man page 2021-01-12 14:04:39 -08:00
git-branch.txt doc/git-branch: fix awkward wording for "-c" 2021-02-03 14:14:31 -08:00
git-bugreport.txt Merge branch 'es/bugreport-shell' 2020-06-08 18:06:28 -07:00
git-bundle.txt bundle: add new version for use with SHA-256 2020-07-30 09:16:48 -07:00
git-cat-file.txt cat-file: add missing [=<format>] to usage/synopsis 2020-07-01 15:54:05 -07:00
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git-check-ignore.txt Merge branch 'en/check-ignore' into maint 2020-03-17 15:02:23 -07:00
git-check-mailmap.txt check-mailmap doc: note config options 2021-01-12 14:04:40 -08:00
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git-checkout.txt Merge branch 'dl/checkout-guess' 2020-10-27 15:09:51 -07:00
git-cherry-pick.txt Documentation: stylistically normalize references to Signed-off-by: 2020-10-20 11:57:40 -07:00
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git-clone.txt Documentation/git-clone.txt: document race with --local 2021-01-11 22:03:08 -08:00
git-column.txt
git-commit-graph.txt Merge branch 'ds/commit-graph-merging-fix' 2020-11-02 13:17:39 -08:00
git-commit-tree.txt Documentation: merge commit-tree --[no-]gpg-sign 2020-04-03 11:37:22 -07:00
git-commit.txt doc: preparatory clean-up of description on the sign-off option 2020-10-20 11:57:35 -07:00
git-config.txt Merge branch 'ps/config-env-pairs' 2021-01-25 14:19:19 -08:00
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git-credential-store.txt Merge branch 'cb/credential-store-ignore-bogus-lines' 2020-05-08 14:25:01 -07:00
git-credential.txt git-credential.txt: use list continuation 2020-05-18 13:19:33 -07:00
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git-diff-tree.txt builtin/diff-tree: learn --merge-base 2020-09-21 13:37:03 -07:00
git-diff.txt builtin/diff-tree: learn --merge-base 2020-09-21 13:37:03 -07:00
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git-fast-export.txt fast-export: allow seeding the anonymized mapping 2020-06-25 14:19:23 -07:00
git-fast-import.txt fast-import: fix typo in documentation 2020-10-04 12:56:29 -07:00
git-fetch-pack.txt
git-fetch.txt fetch: allow refspecs specified through stdin 2020-08-18 13:25:05 -07:00
git-filter-branch.txt filter-branch doc: fix filter-repo typo 2020-10-20 12:22:25 -07:00
git-fmt-merge-msg.txt config.txt: move fmt-merge-msg-config.txt to config/ 2018-10-29 10:17:01 +09:00
git-for-each-ref.txt Doc: prefer more specific file name 2020-09-18 15:41:56 -07:00
git-for-each-repo.txt for-each-repo: run subcommands on configured repos 2020-09-25 10:59:44 -07:00
git-format-patch.txt Merge branch 'jc/format-patch-name-max' 2020-11-21 15:14:38 -08:00
git-fsck-objects.txt
git-fsck.txt fsck doc: remove ancient out-of-date diagnostics 2021-01-20 19:10:42 -08:00
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git-help.txt help: drop usage of 'common' and 'useful' for guides 2020-08-04 18:34:01 -07:00
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git-http-fetch.txt http-fetch: support fetching packfiles by URL 2020-06-10 18:06:34 -07:00
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git-imap-send.txt git-imap-send.txt: add note about localized Gmail folders 2020-08-31 11:44:33 -07:00
git-index-pack.txt builtin/index-pack.c: write reverse indexes 2021-01-25 18:32:43 -08:00
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git-init.txt init: document init.defaultBranch better 2020-12-13 15:53:50 -08:00
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git-log.txt Merge branch 'so/log-diff-merge' 2021-02-05 16:40:44 -08:00
git-ls-files.txt ls-files.c: add --deduplicate option 2021-01-23 11:48:20 -08:00
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git-ls-tree.txt doc: clarify that --abbrev=<n> is about the minimum length 2020-11-04 14:04:44 -08:00
git-mailinfo.txt Doc: show example scissors line 2020-09-28 16:09:04 -07:00
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git-maintenance.txt maintenance: add pack-refs task 2021-02-09 23:09:24 -08:00
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git-merge.txt Doc: reference the "stash list" in autostash docs 2020-05-05 16:07:30 -07:00
git-mergetool--lib.txt mergetool: break setup_tool out into separate initialization function 2021-02-09 14:09:16 -08:00
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git-mktag.txt mktag: add a --[no-]strict option 2021-01-06 14:22:24 -08:00
git-mktree.txt
git-multi-pack-index.txt midx: allow marking a pack as preferred 2021-04-01 13:07:37 -07:00
git-mv.txt
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git-notes.txt docs: improve the example that illustrates git-notes path names 2020-08-03 12:40:09 -07:00
git-p4.txt doc: fix some typos 2021-01-04 11:27:48 -08:00
git-pack-objects.txt pack-objects: no fetch when allow-{any,promisor} 2020-08-06 13:01:03 -07:00
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git-pull.txt Merge branch 'dl/merge-autostash' 2020-04-29 16:15:27 -07:00
git-push.txt t, doc: update tests, reference for "--force-if-includes" 2020-10-03 09:59:19 -07:00
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git-read-tree.txt doc: --recurse-submodules mostly applies to active submodules 2020-04-06 13:42:43 -07:00
git-rebase.txt Documentation: stylistically normalize references to Signed-off-by: 2020-10-20 11:57:40 -07:00
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git-reset.txt doc: document --recurse-submodules for reset and restore 2020-04-06 13:42:43 -07:00
git-restore.txt Doc: document "A...B" form for <tree-ish> in checkout and switch 2020-10-07 09:49:05 -07:00
git-rev-list.txt git-log.txt: include rev-list-description.txt 2020-07-08 22:08:54 -07:00
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git-revert.txt Documentation: stylistically normalize references to Signed-off-by: 2020-10-20 11:57:40 -07:00
git-rm.txt rm: support the --pathspec-from-file option 2020-02-19 10:56:49 -08:00
git-send-email.txt Merge branch 'vv/send-email-with-less-secure-apps-access' into maint 2021-02-05 16:31:25 -08:00
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git-show-index.txt Documentation: mark --object-format=sha256 as experimental 2020-08-17 10:50:14 -07:00
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git-sparse-checkout.txt Merge branch 'en/sparse-with-submodule-doc' 2020-06-22 15:55:03 -07:00
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ref-reachability-filters.txt Doc: prefer more specific file name 2020-09-18 15:41:56 -07:00
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