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SZEDER Gábor 51acfa9db5 versioncmp: use earliest-longest contained suffix to determine sorting order
When comparing tagnames, it is possible that a tagname contains more
than one of the configured prerelease suffixes around the first
different character.  After fixing a bug in the previous commit such a
tagname is sorted according to the contained suffix which comes first
in the configuration.  This is, however, not quite the right thing to
do in the following corner cases:

  1.   $ git -c versionsort.suffix=-bar
             -c versionsort.suffix=-foo-baz
             -c versionsort.suffix=-foo-bar
             tag -l --sort=version:refname 'v1*'
       v1.0-foo-bar
       v1.0-foo-baz

     The suffix of the tagname 'v1.0-foo-bar' is clearly '-foo-bar',
     so it should be listed last.  However, as it also contains '-bar'
     around the first different character, it is listed first instead,
     because that '-bar' suffix comes first the configuration.

  2. One of the configured suffixes starts with the other:

       $ git -c versionsort.prereleasesuffix=-pre \
             -c versionsort.prereleasesuffix=-prerelease \
             tag -l --sort=version:refname 'v2*'
       v2.0-prerelease1
       v2.0-pre1
       v2.0-pre2

     Here the tagname 'v2.0-prerelease1' should be the last.  When
     comparing 'v2.0-pre1' and 'v2.0-prerelease1' the first different
     characters are '1' and 'r', respectively.  Since this first
     different character must be part of the configured suffix, the
     '-pre' suffix is not recognized in the first tagname.  OTOH, the
     '-prerelease' suffix is properly recognized in
     'v2.0-prerelease1', thus it is listed first.

Improve version sort in these corner cases, and

  - look for a configured prerelease suffix containing the first
    different character or ending right before it, so the '-pre'
    suffixes are recognized in case (2).  This also means that
    when comparing tagnames 'v2.0-pre1' and 'v2.0-pre2',
    swap_prereleases() would find the '-pre' suffix in both, but then
    it will return "undecided" and the caller will do the right thing
    by sorting based in '1' and '2'.

  - If the tagname contains more than one suffix, then give precedence
    to the contained suffix that starts at the earliest offset in the
    tagname to address (1).

  - If there are more than one suffixes starting at that earliest
    position, then give precedence to the longest of those suffixes,
    thus ensuring that in (2) the tagname 'v2.0-prerelease1' won't be
    sorted based on the '-pre' suffix.

Add tests for these corner cases and adjust the documentation
accordingly.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-08 11:11:57 -08:00
Documentation versioncmp: use earliest-longest contained suffix to determine sorting order 2016-12-08 11:11:57 -08:00
block-sha1
builtin Merge branch 'jk/create-branch-remove-unused-param' into maint 2016-11-29 13:28:02 -08:00
ci
compat
contrib Merge branch 'rs/cocci' into maint 2016-11-29 13:28:00 -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
perl Merge branch 'mm/send-email-cc-cruft-after-address' into maint 2016-11-29 13:27:55 -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
t versioncmp: use earliest-longest contained suffix to determine sorting order 2016-12-08 11:11:57 -08:00
templates pre-receive.sample: mark it executable 2016-10-28 14:21:11 -07:00
vcs-svn
xdiff
.gitattributes
.gitignore
.mailmap
.travis.yml Merge branch 'ls/macos-update' into maint 2016-11-29 13:27:56 -08:00
COPYING
GIT-VERSION-GEN Start post 2.11 cycle 2016-12-05 11:31:47 -08:00
INSTALL
LGPL-2.1
Makefile Merge branch 'ls/macos-update' into maint 2016-11-29 13:27:56 -08:00
README.md
RelNotes Start post 2.11 cycle 2016-12-05 11:31:47 -08:00
abspath.c
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
apply.c
apply.h
archive-tar.c
archive-zip.c
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
bisect.h
blob.c
blob.h
branch.c create_branch: drop unused "head" parameter 2016-11-09 14:56:21 -08:00
branch.h create_branch: drop unused "head" parameter 2016-11-09 14:56:21 -08:00
builtin.h
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h Merge branch 'ls/git-open-cloexec' 2016-10-31 13:15:21 -07:00
check-builtins.sh
check-racy.c
check_bindir
color.c
color.h
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
commit.c
commit.h
common-main.c common-main: stop munging argv[0] path 2016-11-29 11:01:48 -08:00
config.c
config.mak.in
config.mak.uname
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
connected.h
convert.c Merge branch 'ls/filter-process' 2016-10-31 13:15:21 -07:00
convert.h
copy.c
credential-cache--daemon.c
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
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
diff.c Merge branch 'tk/diffcore-delta-remove-unused' into maint 2016-11-29 13:28:03 -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
diffcore-pickaxe.c
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
editor.c
entry.c
environment.c Merge branch 'lt/abbrev-auto' 2016-10-27 14:58:47 -07:00
exec_cmd.c common-main: stop munging argv[0] path 2016-11-29 11:01:48 -08:00
exec_cmd.h common-main: stop munging argv[0] path 2016-11-29 11:01:48 -08:00
fast-import.c
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.h
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl
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
git-difftool.perl
git-filter-branch.sh
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py
git-parse-remote.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh Merge branch 'js/rebase-i-commentchar-fix' 2016-11-23 11:23:17 -08:00
git-rebase--merge.sh
git-rebase.sh
git-relink.perl
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl
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 stash: allow stashes to be referenced by index only 2016-10-26 09:58:10 -07:00
git-submodule.sh
git-svn.perl
git-web--browse.sh
git.c Merge branch 'jk/common-main' into maint-2.10 2016-12-05 11:24:28 -08:00
git.rc
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c
grep.h
hashmap.c
hashmap.h
help.c
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
http-fetch.c
http-push.c
http-walker.c
http.c
http.h
ident.c
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
line-log.h
line-range.c
line-range.h
list-objects.c
list-objects.h
list.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h
log-tree.c
log-tree.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c
merge-recursive.h
merge.c
mergesort.c
mergesort.h
mru.c
mru.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object.c
object.h
pack-bitmap-write.c
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
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
pager.c
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c Merge branch 'rs/ring-buffer-wraparound' 2016-10-27 14:58:49 -07:00
pathspec.c Merge branch 'ex/deprecate-empty-pathspec-as-match-all' 2016-10-26 13:14:56 -07:00
pathspec.h
pkt-line.c
pkt-line.h
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
quote.h
reachable.c
reachable.h
read-cache.c read-cache: make sure file handles are not inherited by child processes 2016-10-25 11:10:18 -07:00
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
remote-curl.c
remote-testsvn.c
remote.c
remote.h
replace_object.c
rerere.c
rerere.h
resolve-undo.c
resolve-undo.h
revision.c
revision.h
run-command.c
run-command.h
send-pack.c
send-pack.h
sequencer.c Merge branch 'js/prepare-sequencer' 2016-11-22 14:15:38 -08:00
sequencer.h sequencer: get rid of the subcommand field 2016-10-21 09:32:34 -07:00
server-info.c
setup.c
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c Merge branch 'jk/alt-odb-cleanup' 2016-11-10 13:17:30 -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 'ls/filter-process' 2016-10-31 13:15:21 -07:00
shell.c
shortlog.h
show-index.c
sideband.c
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
strbuf.h
streaming.c
streaming.h
string-list.c
string-list.h
submodule-config.c
submodule-config.h
submodule.c Merge branch 'rs/cocci' into maint 2016-10-28 09:01:23 -07:00
submodule.h
symlinks.c
tag.c
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trailer.c Merge branch 'jt/trailer-with-cruft' 2016-10-31 13:15:22 -07:00
trailer.h
transport-helper.c
transport.c Merge branch 'jc/abbrev-auto' 2016-10-27 14:58:48 -07:00
transport.h Merge branch 'jc/abbrev-auto' 2016-10-27 14:58:48 -07:00
tree-diff.c
tree-walk.c
tree-walk.h
tree.c
tree.h
unicode_width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c
unpack-trees.h
update_unicode.sh
upload-pack.c Merge branch 'ls/filter-process' 2016-10-31 13:15:21 -07:00
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c versioncmp: use earliest-longest contained suffix to determine sorting order 2016-12-08 11:11:57 -08:00
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 Merge branch 'nd/ita-empty-commit' 2016-10-27 14:58:50 -07:00
wt-status.h
xdiff-interface.c
xdiff-interface.h
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 http://news.gmane.org/gmane.comp.version-control.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