git/contrib
SZEDER Gábor e8cb023433 completion: let 'for-each-ref' strip the remote name from remote branches
The code listing unique remote branches for 'git checkout's tracking
DWIMery uses a shell parameter expansion in a loop iterating over each
listed ref to remove the remote's name from the remote branches, i.e.
the leading path component from the short ref.  When listing refs from
a configured remote repository, '| sed s///' is used for the same
purpose.

Let 'git for-each-ref' strip one more leading path component from the
refs, i.e. use the format 'refname:strip=3' instead of '=2', making
that parameter expansion and 'sed' execution unnecessary.

This speeds up refs completion for 'git checkout'.  Uniquely
completing a branch for 'git checkout maste<TAB>' in a repo with 100k
remote branches, all packed, best of five:

  On Linux, near the beginning of this series, for reference:

    $ time __git_complete_refs --cur=maste --track

    real    0m8.185s
    user    0m6.896s
    sys     0m1.616s

  Before this patch:

    real    0m2.714s
    user    0m2.344s
    sys     0m0.436s

  After:

    real    0m1.993s
    user    0m1.740s
    sys     0m0.304s

  On Windows, near the beginning:

    real    1m8.421s
    user    0m7.591s
    sys     0m3.557s

  Before this patch:

    real    0m8.191s
    user    0m4.638s
    sys     0m2.918s

  After:

    real    0m6.187s
    user    0m3.358s
    sys     0m2.121s

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:18:22 -07:00
..
buildsystems mark Windows build scripts executable 2013-11-25 15:01:22 -08:00
coccinelle Merge branch 'rs/absolute-pathdup' 2017-02-02 13:36:55 -08:00
completion completion: let 'for-each-ref' strip the remote name from remote branches 2017-03-23 11:18:22 -07:00
contacts contacts: add a Makefile to generate docs and install 2014-10-15 15:18:27 -07:00
credential Merge branch 'mm/credential-libsecret' 2016-10-26 13:14:45 -07:00
diff-highlight diff-highlight: avoid highlighting combined diffs 2016-08-31 09:59:53 -07:00
emacs emacs: make 'git-status' work with separate git dirs 2012-11-26 09:34:28 -08:00
examples Merge branch 'js/difftool-builtin' 2017-01-31 13:15:00 -08:00
fast-import import-tars: support hard links 2016-08-03 09:46:11 -07:00
git-jump contrib/git-jump: fix typo in README 2016-07-22 12:34:51 -07:00
git-shell-commands Add sample commands for git-shell 2010-08-12 15:16:31 -07:00
hg-to-git hg-to-git: --allow-empty-message in git commit 2013-07-23 12:17:23 -07:00
hooks git-multimail: update to release 1.4.0 2016-08-17 11:36:08 -07:00
long-running-filter docs: warn about possible '=' in clean/smudge filter process values 2016-12-06 11:29:52 -08:00
mw-to-git Spelling fixes 2016-08-11 14:35:42 -07:00
persistent-https contrib/persistent-https: use Git version for build label 2016-07-22 10:59:03 -07:00
remote-helpers Revert "Merge branch 'jc/graduate-remote-hg-bzr' (early part)" 2014-05-20 14:48:11 -07:00
stats contrib: update stats/mailmap script 2012-12-12 11:09:11 -08:00
subtree Spelling fixes 2016-08-11 14:35:42 -07:00
svn-fe contrib/svn-fe: fix Makefile 2014-08-28 15:41:28 -07:00
thunderbird-patch-inline contrib/thunderbird-patch-inline/appp.sh: use the $( ... ) construct for command substitution 2015-12-27 15:33:13 -08:00
update-unicode update_unicode.sh: remove the plane filter 2016-12-14 09:48:07 -08:00
workdir git-new-workdir: don't fail if the target directory is empty 2014-12-03 12:49:24 -08:00
convert-grafts-to-replace-refs.sh contrib: add convert-grafts-to-replace-refs.sh 2014-07-21 12:05:53 -07:00
git-resurrect.sh git-sh-setup.sh: add variable to use the stuck-long mode 2014-02-03 12:11:10 -08:00
README
remotes2config.sh contrib: Make remotes2config.sh script more robust 2007-12-04 14:35:08 -08:00
rerere-train.sh Escape Git's exec path in contrib/rerere-train.sh script 2015-11-20 06:43:00 -05:00

Contributed Software

Although these pieces are available as part of the official git
source tree, they are in somewhat different status.  The
intention is to keep interesting tools around git here, maybe
even experimental ones, to give users an easier access to them,
and to give tools wider exposure, so that they can be improved
faster.

I am not expecting to touch these myself that much.  As far as
my day-to-day operation is concerned, these subdirectories are
owned by their respective primary authors.  I am willing to help
if users of these components and the contrib/ subtree "owners"
have technical/design issues to resolve, but the initiative to
fix and/or enhance things _must_ be on the side of the subtree
owners.  IOW, I won't be actively looking for bugs and rooms for
enhancements in them as the git maintainer -- I may only do so
just as one of the users when I want to scratch my own itch.  If
you have patches to things in contrib/ area, the patch should be
first sent to the primary author, and then the primary author
should ack and forward it to me (git pull request is nicer).
This is the same way as how I have been treating gitk, and to a
lesser degree various foreign SCM interfaces, so you know the
drill.

I expect that things that start their life in the contrib/ area
to graduate out of contrib/ once they mature, either by becoming
projects on their own, or moving to the toplevel directory.  On
the other hand, I expect I'll be proposing removal of disused
and inactive ones from time to time.

If you have new things to add to this area, please first propose
it on the git mailing list, and after a list discussion proves
there are some general interests (it does not have to be a
list-wide consensus for a tool targeted to a relatively narrow
audience -- for example I do not work with projects whose
upstream is svn, so I have no use for git-svn myself, but it is
of general interest for people who need to interoperate with SVN
repositories in a way git-svn works better than git-svnimport),
submit a patch to create a subdirectory of contrib/ and put your
stuff there.

-jc