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Taylor Blau 4f027355f6 builtin/commit-graph.c: support for '--split[=<strategy>]'
With '--split', the commit-graph machinery writes new commits in another
incremental commit-graph which is part of the existing chain, and
optionally decides to condense the chain into a single commit-graph.
This is done to ensure that the asymptotic behavior of looking up a
commit in an incremental chain is not dominated by the number of
incrementals in that chain. It can be controlled by the '--max-commits'
and '--size-multiple' options.

In the next two commits, we will introduce additional splitting
strategies that can exert additional control over:

  - when a split commit-graph is and isn't written, and

  - when the existing commit-graph chain is discarded completely and
    replaced with another graph

To prepare for this, make '--split' take an optional strategy (as in
'--split[=<strategy>]'), and add a new enum to describe which strategy
is being used. For now, no strategies are given, and the only enumerated
value is 'COMMIT_GRAPH_SPLIT_UNSPECIFIED', indicating the absence of a
strategy.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-15 09:20:26 -07:00
.github
block-sha1
builtin builtin/commit-graph.c: support for '--split[=<strategy>]' 2020-04-15 09:20:26 -07:00
ci Merge branch 'sg/osx-force-gcc-9' 2019-12-06 15:09:21 -08:00
compat Merge branch 'js/mingw-reserved-filenames' 2020-01-02 12:38:30 -08:00
contrib Merge branch 'dl/pretty-reference' 2019-12-10 13:11:43 -08:00
Documentation builtin/commit-graph.c: support for '--split[=<strategy>]' 2020-04-15 09:20:26 -07:00
ewah
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t t/helper/test-read-graph.c: support commit-graph chains 2020-04-15 09:20:24 -07:00
templates
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xdiff Merge branch 'rs/xdiff-ignore-ws-w-func-context' 2019-12-16 13:08:32 -08:00
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add-interactive.h built-in add -p: implement hunk editing 2019-12-13 12:37:14 -08:00
add-patch.c built-in add -p: show helpful hint when nothing can be staged 2019-12-13 12:37:14 -08:00
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base85.c
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blame.c
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blob.c
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branch.c
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cache.h Merge branch 'ds/sparse-cone' 2020-01-06 14:17:51 -08:00
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check_bindir
check-builtins.sh
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CODE_OF_CONDUCT.md
color.c
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column.c
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combine-diff.c
command-list.txt Merge branch 'ds/sparse-cone' 2019-12-25 11:21:58 -08:00
commit-graph.c commit-graph.h: use odb in 'load_commit_graph_one_fd_st' 2020-02-04 11:36:51 -08:00
commit-graph.h builtin/commit-graph.c: support for '--split[=<strategy>]' 2020-04-15 09:20:26 -07:00
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commit.c
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common-main.c
config.c
config.h
config.mak.dev
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config.mak.uname Sync with 2.23.1 2019-12-06 16:31:39 +01:00
configure.ac
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COPYING
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csum-file.c
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ctype.c
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diff.h Merge branch 'hw/doc-in-header' 2019-12-16 13:08:39 -08:00
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environment.c Merge branch 'ds/sparse-cone' 2019-12-25 11:21:58 -08:00
exec-cmd.c
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fetch-negotiator.c
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fetch-pack.c Merge branch 'ec/fetch-mark-common-refs-trace2' 2019-12-05 12:52:44 -08:00
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fmt-merge-msg.h
fsck.c Sync with Git 2.24.1 2019-12-09 22:17:55 -08:00
fsck.h
fsmonitor.c
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fuzz-commit-graph.c
fuzz-pack-headers.c
fuzz-pack-idx.c
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl git add -p: use non-zero exit code when the diff generation failed 2019-12-06 08:57:34 -08:00
git-archimport.perl
git-bisect.sh
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git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
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git-filter-branch.sh
git-instaweb.sh
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git-p4.py Merge branch 'bk/p4-misc-usability' 2020-01-02 12:38:29 -08:00
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git-submodule.sh Merge branch 'dl/submodule-set-url' 2019-12-10 13:11:42 -08:00
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git.c
git.rc
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graph.c graph: fix lack of color in horizontal lines 2020-01-08 09:37:18 -08:00
graph.h
grep.c
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hash.h
hashmap.c
hashmap.h
help.c
help.h
hex.c
http-backend.c
http-fetch.c
http-push.c
http-walker.c
http.c
http.h
ident.c
imap-send.c
INSTALL
interdiff.c
interdiff.h
iterator.h
json-writer.c
json-writer.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c
line-log.h
line-range.c
line-range.h
linear-assignment.c
linear-assignment.h
list-objects-filter-options.c
list-objects-filter-options.h
list-objects-filter.c
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list-objects.c
list-objects.h
list.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h
log-tree.c Merge branch 'hi/gpg-use-check-signature' 2019-12-10 13:11:45 -08:00
log-tree.h
ls-refs.c
ls-refs.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
Makefile Merge branch 'js/add-p-in-c' 2019-12-25 11:22:01 -08:00
match-trees.c
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-recursive.c Merge branch 'en/merge-recursive-oid-eq-simplify' 2020-01-06 14:17:51 -08:00
merge-recursive.h
merge.c
mergesort.c
mergesort.h
midx.c
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name-hash.c
notes-cache.c
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notes.c Merge branch 'dl/format-patch-notes-config-fixup' 2019-12-25 11:21:58 -08:00
notes.h Merge branch 'dl/format-patch-notes-config-fixup' 2019-12-25 11:21:58 -08:00
object-store.h
object.c
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pack-objects.c Merge branch 'jk/optim-in-pack-idx-conversion' 2019-12-01 09:04:38 -08:00
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packfile.c Merge branch 'ew/packfile-syscall-optim' 2020-01-06 14:17:50 -08:00
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pager.c
parse-options-cb.c
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parse-options.h Merge branch 'hw/doc-in-header' 2019-12-16 13:08:39 -08:00
patch-delta.c
patch-ids.c
patch-ids.h
path.c Sync with Git 2.24.1 2019-12-09 22:17:55 -08:00
path.h
pathspec.c
pathspec.h Merge branch 'hw/doc-in-header' 2019-12-16 13:08:39 -08:00
pkt-line.c
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pretty.c Merge branch 'dl/pretty-reference' 2019-12-10 13:11:43 -08:00
pretty.h
prio-queue.c
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progress.c
progress.h
promisor-remote.c
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prompt.c
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protocol.c
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quote.c
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range-diff.c range-diff: mark pointers as const 2019-12-06 12:34:49 -08:00
range-diff.h Merge branch 'dl/range-diff-with-notes' 2019-12-16 13:08:46 -08:00
reachable.c
reachable.h
read-cache.c Merge branch 'js/mingw-loosen-overstrict-tree-entry-checks' 2020-01-10 14:45:27 -08:00
README.md
rebase-interactive.c
rebase-interactive.h
ref-filter.c
ref-filter.h
reflog-walk.c
reflog-walk.h
refs.c
refs.h
refspec.c
refspec.h
RelNotes Git 2.24.1 2019-12-06 16:31:40 +01:00
remote-curl.c
remote-testsvn.c
remote.c
remote.h
replace-object.c
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repo-settings.c
repository.c
repository.h
rerere.c
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resolve-undo.c
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revision.c Merge branch 'dl/format-patch-notes-config-fixup' 2019-12-25 11:21:58 -08:00
revision.h Merge branch 'dl/format-patch-notes-config-fixup' 2019-12-25 11:21:58 -08:00
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send-pack.c Merge branch 'jk/send-pack-check-negative-with-quick' 2019-12-06 15:09:22 -08:00
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sequencer.c Revert "Merge branch 'ra/rebase-i-more-options'" 2020-01-12 13:25:18 -08:00
sequencer.h Revert "Merge branch 'ra/rebase-i-more-options'" 2020-01-12 13:25:18 -08:00
serve.c
serve.h
server-info.c
setup.c
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-file.c
sha1-lookup.c
sha1-lookup.h
sha1-name.c
sha1dc_git.c
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shallow.c
shell.c
shortlog.h
sideband.c
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sigchain.c
sigchain.h
split-index.c
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stable-qsort.c
strbuf.c strbuf: add a helper function to call the editor "on an strbuf" 2019-12-13 12:37:14 -08:00
strbuf.h strbuf: add a helper function to call the editor "on an strbuf" 2019-12-13 12:37:14 -08:00
streaming.c
streaming.h
string-list.c
string-list.h
sub-process.c
sub-process.h hashmap_entry: remove first member requirement from docs 2019-10-07 10:20:12 +09:00
submodule-config.c fix-typo: consecutive-word duplications 2019-12-16 11:53:11 -08:00
submodule-config.h
submodule.c Sync with 2.22.2 2019-12-06 16:31:30 +01:00
submodule.h Sync with 2.22.2 2019-12-06 16:31:30 +01:00
symlinks.c
tag.c
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace2.c
trace2.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c Sync with 2.23.1 2019-12-06 16:31:39 +01:00
transport-internal.h
transport.c
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tree-diff.c
tree-walk.c Merge branch 'js/mingw-loosen-overstrict-tree-entry-checks' 2020-01-06 14:17:50 -08:00
tree-walk.h
tree.c
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unicode-width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'ds/sparse-cone' 2019-12-25 11:21:58 -08:00
unpack-trees.h
upload-pack.c
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url.c
url.h
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usage.c
userdiff.c Merge branch 'ln/userdiff-elixir' 2019-12-25 11:21:59 -08:00
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utf8.c
utf8.h
varint.c
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version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c
worktree.h
wrap-for-bin.sh
wrapper.c
write-or-die.c
ws.c
wt-status.c
wt-status.h
xdiff-interface.c
xdiff-interface.h
zlib.c Replace all die("BUG: ...") calls by BUG() ones 2018-05-06 19:06:13 +09:00

Build Status

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-<commandname>.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

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The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):

  • random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
  • stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
  • "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
  • "goddamn idiotic truckload of sh*t": when it breaks