Go to file
Jeff King 9df4a6074a pack-objects: disable pack reuse for object-selection options
If certain options like --honor-pack-keep, --local, or
--incremental are used with pack-objects, then we need to
feed each potential object to want_object_in_pack() to see
if it should be filtered out. But when the bitmap
reuse_packfile optimization is in effect, we do not call
that function at all, and in fact skip adding the objects to
the to_pack list entirely.  This means we have a bug: for
certain requests we will silently ignore those options and
include objects in that pack that should not be there.

The problem has been present since the inception of the
pack-reuse code in 6b8fda2db (pack-objects: use bitmaps when
packing objects, 2013-12-21), but it was unlikely to come up
in practice.  These options are generally used for on-disk
packing, not transfer packs (which go to stdout), but we've
never allowed pack reuse for non-stdout packs (until
645c432d6, we did not even use bitmaps, which the reuse
optimization relies on; after that, we explicitly turned it
off when not packing to stdout).

We can fix this by just disabling the reuse_packfile
optimization when the options are in use. In theory we could
teach the pack-reuse code to satisfy these checks, but it's
not worth the complexity. The purpose of the optimization is
to keep the amount of per-object work we do to a minimum.
But these options inherently require us to search for other
copies of each object, drowning out any benefit of the
pack-reuse optimization. But note that the optimizations
from 56dfeb626 (pack-objects: compute local/ignore_pack_keep
early, 2016-07-29) happen before pack-reuse, meaning that
specifying "--honor-pack-keep" in a repository with no .keep
files can still follow the fast path.

There are tests in t5310 that check these options with
bitmaps and --stdout, but they didn't catch the bug, and
it's hard to adapt them to do so.

One problem is that they don't use --delta-base-offset;
without that option, we always disable the reuse
optimization entirely. It would be fine to add it in (it
actually makes the test more realistic), but that still
isn't quite enough.

The other problem is that the reuse code is very picky; it
only kicks in when it can reuse most of a pack, starting
from the first byte. So we'd have to start from a fully
repacked and bitmapped state to trigger it. But the tests
for these options use a much more subtle state; they want to
be sure that the want_object_in_pack() code is allowing some
objects but not others. Doing a full repack runs counter to
that.

So this patch adds new tests at the end of the script which
create the fully-packed state and make sure that each option
is not fooled by reusable pack.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-09 12:07:24 +09:00
Documentation Git 2.11.1 2017-02-02 13:21:27 -08:00
block-sha1
builtin pack-objects: disable pack reuse for object-selection options 2017-05-09 12:07:24 +09:00
ci
compat Merge branch 'js/mingw-isatty' into maint 2017-01-31 13:32:11 -08:00
contrib Merge branch 'ls/filter-process' into maint 2017-01-17 15:19:08 -08:00
ewah
git-gui git-gui 0.21.0 2016-10-20 09:33:17 -07:00
gitk-git
gitweb Merge branch 'ab/gitweb-abbrev-links' 2016-10-26 13:14:46 -07:00
mergetools Merge branch 'da/mergetool-xxdiff-hotkey' into maint 2017-01-17 15:11:05 -08:00
perl git-svn: allow "0" in SVN path components 2016-12-12 10:49:50 -08:00
po Merge branch 'russian-l10n' of https://github.com/DJm00n/git-po-ru 2016-11-29 21:19:43 +08:00
ppc
refs Merge branch 'jk/ref-symlink-loop' 2016-10-17 13:25:20 -07:00
t pack-objects: disable pack reuse for object-selection options 2017-05-09 12:07:24 +09:00
templates pre-receive.sample: mark it executable 2016-10-28 14:21:11 -07:00
vcs-svn Merge branch 'mr/vcs-svn-printf-ulong' into maint 2016-09-29 16:49:37 -07:00
xdiff Merge branch 'mh/diff-indent-heuristic' 2016-10-03 13:30:38 -07:00
.gitattributes .gitattributes: set file type for C files 2016-07-07 14:11:15 -07:00
.gitignore Merge branch 'bb/unicode-9.0' into maint 2017-01-17 14:49:25 -08:00
.mailmap add David Turner's Two Sigma address 2016-09-26 17:46:44 -07:00
.travis.yml travis-ci: fix Perforce install on macOS 2017-01-23 10:55:00 -08:00
COPYING
GIT-VERSION-GEN Almost ready for 2.11.1 2017-01-17 15:19:11 -08:00
INSTALL
LGPL-2.1
Makefile Makefile: exclude contrib from FIND_SOURCE_FILES 2016-12-14 09:54:49 -08:00
README.md README: replace gmane link with public-inbox 2016-12-15 09:30:09 -08:00
RelNotes Almost ready for 2.11.1 2017-01-17 15:19:11 -08:00
abspath.c
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
apply.c i18n: apply: mark error message for translation 2016-10-17 14:51:42 -07:00
apply.h apply: learn to use a different index file 2016-09-07 12:29:54 -07:00
archive-tar.c Merge branch 'jk/big-and-future-archive-tar' 2016-08-12 09:47:37 -07:00
archive-zip.c archive-zip: load userdiff config 2017-01-07 18:49:30 -08:00
archive.c archive: read local configuration 2016-11-22 13:55:20 -08:00
archive.h archive: read local configuration 2016-11-22 13:55:20 -08:00
argv-array.c
argv-array.h
attr.c read info/{attributes,exclude} only when in repository 2016-10-26 13:30:51 -07:00
attr.h
base85.c
bisect.c use QSORT 2016-09-29 15:42:18 -07:00
bisect.h
blob.c
blob.h
branch.c worktree.c: get_worktrees() takes a new flag argument 2016-11-28 13:18:51 -08:00
branch.h create_branch: drop unused "head" parameter 2016-11-09 14:56:21 -08:00
builtin.h builtin: convert textconv_object to use struct object_id 2016-09-07 12:59:42 -07:00
bulk-checkin.c compression: unify pack.compression configuration parsing 2016-11-15 21:16:22 -08:00
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
cache-tree.h
cache.h Merge branch 'sb/in-core-index-doc' into maint 2017-01-31 13:32:11 -08:00
check-builtins.sh
check-racy.c
check_bindir
color.c Merge branch 'jk/squelch-false-warning-from-gcc-o3' into maint 2016-09-19 13:51:41 -07:00
color.h Merge branch 'js/color-on-windows-comment' into maint 2016-07-28 11:25:55 -07:00
column.c
column.h
combine-diff.c diff_aligned_abbrev: use "struct oid" 2016-10-26 13:30:51 -07:00
command-list.txt
commit-slab.h Merge branch 'vs/typofix' 2016-08-12 09:47:37 -07:00
commit.c Merge branch 'rs/copy-array' into maint 2016-10-11 14:18:32 -07:00
commit.h Merge branch 'nd/shallow-deepen' 2016-10-10 14:03:50 -07:00
common-main.c common-main: stop munging argv[0] path 2016-11-29 11:01:48 -08:00
config.c Merge branch 'nd/config-misc-fixes' into maint 2017-01-31 13:32:06 -08:00
config.mak.in
config.mak.uname Merge branch 'ew/build-time-pager-tweaks' 2016-08-08 14:48:44 -07:00
configure.ac Merge branch 'dp/autoconf-curl-ssl' into maint 2016-10-28 09:01:13 -07:00
connect.c Merge branch 'ls/filter-process' 2016-10-31 13:15:21 -07:00
connect.h
connected.c check_connected: accept an env argument 2016-10-10 13:54:02 -07:00
connected.h check_connected: accept an env argument 2016-10-10 13:54:02 -07:00
convert.c Merge branch 'jc/renormalize-merge-kill-safer-crlf' into maint 2017-01-17 14:49:28 -08:00
convert.h
copy.c
credential-cache--daemon.c i18n: credential-cache--daemon: mark advice for translation 2016-10-17 14:51:47 -07:00
credential-cache.c
credential-store.c
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c Merge branch 'jk/daemon-path-ok-check-truncation' into maint 2016-11-29 13:27:56 -08:00
date.c date: add "unix" format 2016-07-27 14:15:51 -07:00
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c commit: fix empty commit creation when there's no changes but ita entries 2016-10-24 10:48:23 -07:00
diff-no-index.c Merge branch 'jk/setup-sequence-update' 2016-09-21 15:15:24 -07:00
diff.c diff: handle --no-abbrev in no-index case 2016-12-08 14:40:30 -08:00
diff.h Merge branch 'nd/ita-empty-commit' 2016-10-27 14:58:50 -07:00
diffcore-break.c Merge branch 'tk/diffcore-delta-remove-unused' into maint 2016-11-29 13:28:03 -08:00
diffcore-delta.c Merge branch 'tk/diffcore-delta-remove-unused' 2016-11-17 13:45:22 -08:00
diffcore-order.c use QSORT 2016-09-29 15:42:18 -07:00
diffcore-pickaxe.c Merge branch 'js/regexec-buf' into maint 2016-09-29 16:49:45 -07:00
diffcore-rename.c Merge branch 'tk/diffcore-delta-remove-unused' into maint 2016-11-29 13:28:03 -08:00
diffcore.h Merge branch 'tk/diffcore-delta-remove-unused' into maint 2016-11-29 13:28:03 -08:00
dir-iterator.c
dir-iterator.h
dir.c read info/{attributes,exclude} only when in repository 2016-10-26 13:30:51 -07:00
dir.h ls-files: add pathspec matching for submodules 2016-10-10 12:14:58 -07:00
editor.c
entry.c streaming: make stream_blob_to_fd take struct object_id 2016-09-07 12:59:42 -07:00
environment.c compression: unify pack.compression configuration parsing 2016-11-15 21:16:22 -08:00
exec_cmd.c Merge branch 'js/exec-path-coverity-workaround' into maint 2017-01-31 13:32:10 -08:00
exec_cmd.h common-main: stop munging argv[0] path 2016-11-29 11:01:48 -08:00
fast-import.c Merge branch 'mh/fast-import-notes-fix-new' into maint 2017-01-31 13:32:05 -08:00
fetch-pack.c fetch-pack.c: correct command at the beginning of an error message 2016-11-11 13:28:39 -08:00
fetch-pack.h
fmt-merge-msg.h
fsck.c fsck: handle bad trees like other errors 2016-09-27 14:09:10 -07:00
fsck.h fsck: give the error function a chance to see the fsck_options 2016-07-18 11:35:00 -07:00
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl diff: improve positioning of add/delete blocks in diffs 2016-09-19 10:25:11 -07:00
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'jk/common-main' into maint-2.10 2016-12-05 11:24:28 -08:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh difftool: always honor fatal error exit codes 2016-08-15 15:24:05 -07:00
git-difftool.perl Merge branch 'jk/difftool-in-subdir' into maint 2017-01-17 15:14:40 -08:00
git-filter-branch.sh
git-instaweb.sh
git-merge-octopus.sh git-merge-octopus: do not capitalize "octopus" 2016-09-08 12:17:10 -07:00
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh mergetool: honor mergetool.$tool.trustExitCode for built-in tools 2016-11-29 10:54:03 -08:00
git-mergetool.sh mergetool: honor -O<orderfile> 2016-10-11 10:04:31 -07:00
git-p4.py Merge branch 'gv/p4-multi-path-commit-fix' into maint 2017-01-17 15:19:02 -08:00
git-parse-remote.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh Merge branch 'jk/rebase-i-squash-count-fix' into maint 2017-01-31 13:32:07 -08:00
git-rebase--merge.sh
git-rebase.sh
git-relink.perl
git-remote-testgit.sh
git-request-pull.sh request-pull: drop old USAGE stuff 2017-01-15 16:23:23 -08:00
git-send-email.perl Merge branch 'jc/send-email-skip-backup' 2016-07-11 10:31:04 -07:00
git-sh-i18n.sh
git-sh-setup.sh git-sh-setup: be explicit where to dot-source git-sh-i18n from. 2016-10-30 16:13:49 -07:00
git-stash.sh Merge branch 'jk/stash-disable-renames-internally' into maint 2017-01-17 14:49:30 -08:00
git-submodule.sh clone: pass --progress decision to recursive submodules 2016-09-22 11:22:47 -07:00
git-svn.perl git-svn: "git worktree" awareness 2016-10-14 01:36:12 +00:00
git-web--browse.sh
git.c execv_dashed_external: wait for child on signal death 2017-01-09 13:41:40 -08:00
git.rc
gpg-interface.c gpg-interface: use more status letters 2016-10-12 10:41:59 -07:00
gpg-interface.h
graph.c Merge branch 'jk/graph-padding-fix' into maint 2016-10-11 14:19:03 -07:00
graph.h graph: add support for --line-prefix on all graph-aware output 2016-08-31 18:07:09 -07:00
grep.c Merge branch 'js/regexec-buf' into maint 2016-09-29 16:49:45 -07:00
grep.h Merge branch 'jc/grep-commandline-vs-configuration' into maint 2016-08-10 11:55:29 -07:00
hashmap.c
hashmap.h
help.c use QSORT 2016-09-29 15:42:18 -07:00
help.h
hex.c hex: make wraparound of the index into ring-buffer explicit 2016-10-26 10:54:11 -07:00
http-backend.c pkt-line: rename packet_write() to packet_write_fmt() 2016-10-17 11:36:50 -07:00
http-fetch.c
http-push.c Merge branch 'jk/common-main' into maint 2016-09-08 21:35:51 -07:00
http-walker.c http-walker: complain about non-404 loose object errors 2016-12-06 12:43:34 -08:00
http.c Merge branch 'jk/http-walker-limit-redirect' into maint 2017-01-17 14:49:29 -08:00
http.h Merge branch 'jk/http-walker-limit-redirect' into maint 2017-01-17 14:49:29 -08:00
ident.c Merge branch 'jk/ident-ai-canonname-could-be-null' into maint 2016-10-03 13:22:32 -07:00
imap-send.c Merge branch 'jc/cocci-xstrdup-or-null' into maint 2016-10-28 09:01:23 -07:00
iterator.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
line-log.c use QSORT 2016-09-29 15:42:18 -07:00
line-log.h
line-range.c
line-range.h
list-objects.c
list-objects.h
list.h list: avoid incompatibility with *BSD sys/queue.h 2016-07-18 11:06:51 -07:00
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h mingw: ensure temporary file handles are not inherited by child processes 2016-08-23 09:09:55 -07:00
log-tree.c graph: add support for --line-prefix on all graph-aware output 2016-08-31 18:07:09 -07:00
log-tree.h
mailinfo.c Merge branch 'jt/mailinfo-fold-in-body-headers' into maint 2017-01-17 15:11:06 -08:00
mailinfo.h mailinfo: handle in-body header continuations 2016-09-21 10:23:11 -07:00
mailmap.c cocci: refactor common patterns to use xstrdup_or_null() 2016-10-12 11:22:10 -07:00
mailmap.h
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c Merge branch 'nd/qsort-in-merge-recursive' into maint 2017-01-17 15:19:03 -08:00
merge-recursive.h merge-recursive: offer an option to retain the output in 'obuf' 2016-08-01 11:45:30 -07:00
merge.c sequencer: lib'ify checkout_fast_forward() 2016-09-09 11:24:52 -07:00
mergesort.c
mergesort.h
mru.c add generic most-recently-used list 2016-07-29 11:05:07 -07:00
mru.h add generic most-recently-used list 2016-07-29 11:05:07 -07:00
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c Merge branch 'va/i18n-more' 2016-09-26 16:09:18 -07:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c notes: convert init_notes to use struct object_id 2016-09-07 12:59:42 -07:00
notes.h
object.c
object.h
pack-bitmap-write.c use QSORT 2016-09-29 15:42:18 -07:00
pack-bitmap.c sha1_file: rename git_open_noatime() to git_open() 2016-10-25 10:59:13 -07:00
pack-bitmap.h
pack-check.c Merge branch 'jk/verify-packfile-gently' into maint 2016-10-11 14:21:36 -07:00
pack-objects.c
pack-objects.h pack-objects: break delta cycles before delta-search phase 2016-08-11 10:44:13 -07:00
pack-revindex.c use COPY_ARRAY 2016-09-25 16:44:13 -07:00
pack-revindex.h
pack-write.c use QSORT 2016-09-29 15:42:18 -07:00
pack.h fsck: use streaming interface for large blobs in pack 2016-07-13 09:15:29 -07:00
pager.c Merge branch 'jk/setup-sequence-update' 2016-09-21 15:15:24 -07:00
parse-options-cb.c Merge branch 'rs/cocci' 2016-10-17 13:25:21 -07:00
parse-options.c parse-options: print "fatal:" before usage_msg_opt() 2016-12-14 09:58:09 -08:00
parse-options.h Merge branch 'mh/diff-indent-heuristic' 2016-09-26 16:09:16 -07:00
patch-delta.c
patch-ids.c patch-ids: refuse to compute patch-id for merge commit 2016-09-12 13:45:01 -07:00
patch-ids.h rebase: avoid computing unnecessary patch IDs 2016-08-11 14:39:16 -07:00
path.c Merge branch 'js/normalize-path-copy-ceil' into maint 2017-01-17 15:11:03 -08:00
pathspec.c Merge branch 'ex/deprecate-empty-pathspec-as-match-all' 2016-10-26 13:14:56 -07:00
pathspec.h Merge branch 'bw/pathspec-remove-unused-extern-decl' into maint 2016-09-29 16:49:34 -07:00
pkt-line.c pkt-line: add functions to read/write flush terminated packet streams 2016-10-17 11:36:50 -07:00
pkt-line.h pkt-line: add functions to read/write flush terminated packet streams 2016-10-17 11:36:50 -07:00
preload-index.c
pretty.c Merge branch 'rs/cocci' into maint 2016-10-28 09:01:23 -07:00
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c
prompt.h
quote.c Merge branch 'nd/icase' into maint 2016-07-28 11:26:03 -07:00
quote.h Merge branch 'nd/icase' into maint 2016-07-28 11:26:03 -07:00
reachable.c
reachable.h
read-cache.c cache.h: document remove_index_entry_at 2017-01-19 12:17:57 -08:00
ref-filter.c Merge branch 'jc/for-each-ref-head-segfault-fix' 2016-11-23 11:23:16 -08:00
ref-filter.h
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'jc/cocci-xstrdup-or-null' 2016-10-26 13:14:45 -07:00
refs.h Merge branch 'nd/shallow-deepen' 2016-10-10 14:03:50 -07:00
remote-curl.c Merge branch 'dt/smart-http-detect-server-going-away' into maint 2017-01-17 15:19:03 -08:00
remote-testsvn.c
remote.c Merge branch 'km/branch-get-push-while-detached' into maint 2017-01-31 13:32:08 -08:00
remote.h Merge branch 'jk/push-force-with-lease-creation' into maint 2016-09-08 21:35:53 -07:00
replace_object.c
rerere.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
rerere.h
resolve-undo.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
resolve-undo.h
revision.c Merge branch 'vn/revision-shorthand-for-side-branch-log' 2016-10-06 14:53:10 -07:00
revision.h
run-command.c execv_dashed_external: wait for child on signal death 2017-01-09 13:41:40 -08:00
run-command.h execv_dashed_external: wait for child on signal death 2017-01-09 13:41:40 -08:00
send-pack.c cocci: refactor common patterns to use xstrdup_or_null() 2016-10-12 11:22:10 -07:00
send-pack.h push: accept push options 2016-07-14 15:50:41 -07:00
sequencer.c Revert "sequencer: remove useless get_dir() function" 2016-12-14 14:56:46 -08:00
sequencer.h sequencer: get rid of the subcommand field 2016-10-21 09:32:34 -07:00
server-info.c use QSORT 2016-09-29 15:42:18 -07:00
setup.c i18n: setup: mark error messages for translation 2016-08-09 12:44:59 -07:00
sh-i18n--envsubst.c remove unnecessary check before QSORT 2016-09-29 15:42:18 -07:00
sha1-array.c Merge branch 'rs/qsort' 2016-10-10 14:03:46 -07:00
sha1-array.h sha1_array: let callbacks interrupt iteration 2016-09-26 11:46:41 -07:00
sha1-lookup.c
sha1-lookup.h
sha1_file.c Merge branch 'jk/quote-env-path-list-component' into maint 2017-01-17 15:11:06 -08:00
sha1_name.c Merge branch 'jk/no-looking-at-dotgit-outside-repo' 2016-11-01 12:58:49 -07:00
shallow.c Merge branch 'nd/shallow-fixup' into maint 2017-01-17 15:11:05 -08:00
shell.c
shortlog.h
show-index.c
sideband.c Merge branch 'lf/recv-sideband-cleanup' into maint 2016-08-08 14:21:41 -07:00
sideband.h
sigchain.c
sigchain.h
split-index.c split-index: s/eith/with/ typo fix 2016-11-01 11:48:02 -07:00
split-index.h
strbuf.c link_alt_odb_entry: handle normalize_path errors 2016-10-10 13:52:36 -07:00
strbuf.h link_alt_odb_entry: handle normalize_path errors 2016-10-10 13:52:36 -07:00
streaming.c Merge branch 'jk/pack-objects-optim-mru' 2016-10-10 14:03:47 -07:00
streaming.h streaming: make stream_blob_to_fd take struct object_id 2016-09-07 12:59:42 -07:00
string-list.c use QSORT 2016-09-29 15:42:18 -07:00
string-list.h
submodule-config.c Merge branch 'sb/submodule-update-dot-branch' 2016-08-10 12:33:20 -07:00
submodule-config.h submodule-config: keep configured branch around 2016-08-01 14:42:07 -07:00
submodule.c Merge branch 'bw/push-dry-run' into maint 2017-01-17 14:49:27 -08:00
submodule.h push: fix --dry-run to not push submodules 2016-11-23 08:39:14 -08:00
symlinks.c
tag.c
tag.h
tar.h
tempfile.c mingw: ensure temporary file handles are not inherited by child processes 2016-08-23 09:09:55 -07:00
tempfile.h mingw: ensure temporary file handles are not inherited by child processes 2016-08-23 09:09:55 -07:00
thread-utils.c
thread-utils.h
tmp-objdir.c tmp-objdir: quote paths we add to alternates 2016-12-12 15:10:46 -08:00
tmp-objdir.h tmp-objdir: introduce API for temporary object directories 2016-10-10 13:54:02 -07:00
trace.c trace: do not fall back to stderr 2016-08-05 09:28:17 -07:00
trace.h
trailer.c Merge branch 'jt/trailer-with-cruft' 2016-10-31 13:15:22 -07:00
trailer.h
transport-helper.c Merge branch 'nd/shallow-deepen' 2016-10-10 14:03:50 -07:00
transport.c Merge branch 'bw/push-dry-run' into maint 2017-01-17 14:49:27 -08:00
transport.h Merge branch 'jc/abbrev-auto' 2016-10-27 14:58:48 -07:00
tree-diff.c
tree-walk.c fsck: handle bad trees like other errors 2016-09-27 14:09:10 -07:00
tree-walk.h fsck: handle bad trees like other errors 2016-09-27 14:09:10 -07:00
tree.c use QSORT 2016-09-29 15:42:18 -07:00
tree.h
unicode_width.h unicode_width.h: update the width tables to Unicode 9.0 2016-12-14 09:48:07 -08:00
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'sb/unpack-trees-grammofix' into maint 2017-01-17 15:19:05 -08:00
unpack-trees.h
upload-pack.c upload-pack: optionally allow fetching any sha1 2016-11-18 13:06:14 -08:00
url.c introduce hex2chr() for converting two hexadecimal digits to a character 2016-09-07 10:42:46 -07:00
url.h
urlmatch.c
urlmatch.h
usage.c Merge branch 'cc/apply-am' 2016-09-19 13:47:18 -07:00
userdiff.c
userdiff.h
utf8.c utf8: accept "latin-1" as ISO-8859-1 2016-09-26 18:16:23 -07:00
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c walker: let walker_say take arbitrary formats 2016-07-08 10:11:23 -07:00
walker.h walker: let walker_say take arbitrary formats 2016-07-08 10:11:23 -07:00
wildmatch.c
wildmatch.h
worktree.c worktree list: keep the list sorted 2016-11-28 13:18:51 -08:00
worktree.h worktree list: keep the list sorted 2016-11-28 13:18:51 -08:00
wrap-for-bin.sh
wrapper.c Merge branch 'sb/submodule-parallel-fetch' into maint 2016-07-28 11:26:02 -07:00
write_or_die.c run-command: move check_pipe() from write_or_die to run_command 2016-10-17 11:36:49 -07:00
ws.c
wt-status.c Merge branch 'nd/ita-empty-commit' 2016-10-27 14:58:50 -07:00
wt-status.h wt-status: teach has_{unstaged,uncommitted}_changes() about submodules 2016-10-07 09:29:31 -07:00
xdiff-interface.c Merge branch 'js/regexec-buf' into maint 2016-09-29 16:49:45 -07:00
xdiff-interface.h Convert read_mmblob to take struct object_id. 2016-09-07 12:59:42 -07:00
zlib.c

README.md

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 http://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-.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>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at https://public-inbox.org/git, http://marc.info/?l=git and other archival sites.

The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

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