Commit Graph

46589 Commits

Author SHA1 Message Date
SZEDER Gábor
2f779f9176 completion: extract completing ctags symbol names into helper function
The previous commit doubled the number of __git_match_ctag()'s
positional parameters, and, to keep the position of existing
parameters for the sake of backwards compatibility, the prefix,
current word and suffix parameters ended up in different order than in
other functions accepting the same parameters.  Then there is a
condition checking the existence of the tag file before invoking this
function.

We could still live with this if there were only a single callsite,
but the next commit will add a few more, so it's worth providing a
cleaner interface.

Add the wrapper function __git_complete_symbol(), which encompasses
the condition for checking the presence of the tag file and filling
COMPREPLY, and accepts '--opt=val'-style options with default values
that keep callsites simpler.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 13:31:24 -07:00
SZEDER Gábor
7826a7865c completion: put matching ctags symbol names directly into COMPREPLY
The one-liner awk script in __git_match_ctag() listing ctags symbol
names for 'git grep <TAB>' is already smart enough to list only symbol
names matching the current word to be completed.

Extend this helper function to accept prefix and suffix parameters to
be prepended and appended, respectively, to each listed symbol name in
the awk script, so its output won't require any additional processing
or filtering in the completion script before being handed over to
Bash.  Use the faster __gitcomp_direct() helper instead of
__gitcomp_nl() to fill the fully processed matching symbol names into
Bash's COMPREPLY array.

Right after 'git grep <TAB>' in current git.git with 14k+ symbol names
in the tag file, best of five:

  Before:

    $ time __gitcomp_nl "$(__git_match_ctag "" tags)"

    real    0m0.178s
    user    0m0.176s
    sys     0m0.000s

  After:

    $ time __gitcomp_direct "$(__git_match_ctag "" tags "" " ")"

    real    0m0.058s
    user    0m0.048s
    sys     0m0.008s

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 13:31:24 -07:00
Kyle Meyer
e7e183d6ee doc/config: grammar fixes for core.{editor,commentChar}
Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 12:04:08 -07:00
SZEDER Gábor
3e5b36c637 refs.c: use skip_prefix() in prettify_refname()
This eliminates three magic numbers.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:22:01 -07:00
Junio C Hamano
f364f02724 Merge branch 'js/rebase-helper'
A hotfix for a regression fix

* js/rebase-helper:
  sequencer: fix missing newline
2017-03-23 11:20:46 -07:00
Brandon Williams
a42e1b4194 sequencer: fix missing newline
When using rebase --interactive where one of the lines is marked as
'edit' this is the resulting output:

    Stopped at ec3b9c4...  stuffYou can amend the commit now, with

      git commit --amend

    Once you are satisfied with your changes, run

      git rebase --continue

A newline character is missing at the end of the "Stopped at ..." line and
before the "You can amend ..." line.  This patch fixes the malformed output by
adding the missing newline character to the end of the "Stopped at ..." line.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:19:23 -07:00
SZEDER Gábor
227307a639 completion: speed up branch and tag completion
Modify __git_heads() and __git_tags() and the few callsites they have,
so we can let 'git for-each-ref' do all the hard work and these
functions' output won't need any further processing or filtering
before being handed over to Bash, resulting in faster branch and tag
completion.  These are some of the same tricks used in the previous
commits to speed up refs completion, namely:

  - Extend both functions to accept prefix, current word and suffix
    positional parameters, all optional and all empty by default to
    keep the parameterless behavior unaltered.

  - Specify appropriate globbing patterns to 'git for-each-ref' to
    list only branches or tags matching the given current word
    parameter.

  - Modify the 'git for-each-ref --format=<...>' to include the given
    prefix and suffix.

  - Adjust all callsites to specify the proper prefix, current word
    and suffix parameters, and to fill COMPREPLY using
    __gitcomp_direct().

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:18:23 -07:00
SZEDER Gábor
745d655dc9 completion: fill COMPREPLY directly when completing fetch refspecs
The __git_complete_fetch_refspecs() has to iterate over __git_refs()'s
output anyway to turn the listed matching refs into refspecs, and it
knows about the prefix and suffix that has to be added to each
refspec.

Modify this function to add the prefix and suffix to each refspec
while iterating and feed the result, since it doesn't need further
processing, to the new __gitcomp_direct() helper added in the previous
commit, because it should be faster when there are a lot of refspecs
to list.

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
SZEDER Gábor
fef56eb006 completion: fill COMPREPLY directly when completing refs
__gitcomp_nl() iterates over all the possible completion words it gets
as argument

  - filtering matching words,
  - appending a trailing space to each matching word (in all but two
    cases),
  - prepending a prefix to each matching word (when completing words
    after e.g. '--option=<TAB>' or 'master..<TAB>'), and
  - adding each matching word to the COMPREPLY array.

This takes a while when a lot of refs are passed to __gitcomp_nl().

The previous changes in this series ensure that __git_refs() lists
only refs matching the current word to be completed, making a second
filtering in __gitcomp_nl() redundant.

Adding the necessary prefix and suffix could be done in __git_refs()
as well:

  - When refs come from 'git for-each-ref', then that prefix and
    suffix could be added much more efficiently using a 'git
    for-each-ref' format containing said prefix and suffix.  Care
    should be taken, though, because that prefix might contain
    'for-each-ref' format specifiers as part of the left hand side of
    a '..' range or '...' symmetric difference notation or
    fetch/push/etc. refspec, e.g. 'git log "evil-%(refname)..br<TAB>'.
    Doubling every '%' in the prefix will prevent 'git for-each-ref'
    from interpolating any of those contained specifiers.
  - When refs come from 'git ls-remote', then that prefix and suffix
    can be added in the shell loop that has to process 'git
    ls-remote's output anyway.
  - Finally, the prefix and suffix can be added to that handful of
    potentially matching symbolic and pseudo refs right away in the
    shell loop listing them.

And then all what is still left to do is to assign a bunch of
newline-separated words to a shell array, which can be done without a
shell loop iterating over each word, basically making all of
__gitcomp_nl() unnecessary for refs completion.

Add the helper function __gitcomp_direct() to fill the COMPREPLY array
with prefiltered and preprocessed words without any additional
processing, without a shell loop, with just one single compound
assignment.  Modify __git_refs() to accept prefix and suffix
parameters and add them to each and every listed ref as described
above.  Modify __git_complete_refs() to pass the prefix and suffix
parameters to __git_refs() and to feed __git_refs()'s output to
__gitcomp_direct() instead of __gitcomp_nl().

This speeds up refs completion when there are a lot of refs matching
the current word to be completed.  Listing all branches for completion
in a repo with 100k local branches, all packed, best of five:

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

    $ time __git_complete_refs

    real    0m2.028s
    user    0m1.692s
    sys     0m0.344s

  Before this patch:

    real    0m1.135s
    user    0m1.112s
    sys     0m0.024s

  After:

    real    0m0.367s
    user    0m0.352s
    sys     0m0.020s

  On Windows, near the beginning:

    real    0m13.078s
    user    0m1.609s
    sys     0m0.060s

  Before this patch:

    real    0m2.093s
    user    0m1.641s
    sys     0m0.060s

  After:

    real    0m0.683s
    user    0m0.203s
    sys     0m0.076s

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
SZEDER Gábor
400a7553c4 completion: let 'for-each-ref' sort remote branches for 'checkout' DWIMery
When listing unique remote branches for 'git checkout's tracking
DWIMery, __git_refs() runs the classic '... |sort |uniq -u' pattern to
filter out duplicate remote branches.

Let 'git for-each-ref' do the sorting, sparing the overhead of
fork()+exec()ing 'sort' and a stage in the pipeline where potentially
relatively large amount of data can be passed between two subsequent
pipeline stages.

This speeds up refs completion for 'git checkout' a bit when a lot of
remote branches match the current word to be completed.  Listing a
single local and 100k remote branches, all packed, best of five:

  On Linux, before:

    $ time __git_complete_refs --track

    real    0m1.856s
    user    0m1.816s
    sys     0m0.060s

  After:

    real    0m1.550s
    user    0m1.512s
    sys     0m0.060s

  On Windows, before:

    real    0m3.128s
    user    0m2.155s
    sys     0m0.183s

  After:

    real    0m2.781s
    user    0m1.826s
    sys     0m0.136s

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
SZEDER Gábor
824388d54b completion: let 'for-each-ref' filter remote branches for 'checkout' DWIMery
The code listing unique remote branches for 'git checkout's tracking
DWIMery outputs only remote branches that match the current word to be
completed, but the filtering is done in a shell loop iterating over
all remote refs.

Let 'git for-each-ref' do the filtering, as it can do so much more
efficiently and we can remove that shell loop entirely.

This speeds up refs completion for 'git checkout' considerably when
there are a lot of non-matching remote refs to be filtered out.
Uniquely completing a branch in a repository with 100k remote
branches, all packed, best of five:

  On Linux, before:

    $ time __git_complete_refs --cur=maste --track

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

  After:

    real    0m0.266s
    user    0m0.248s
    sys     0m0.012s

  On Windows, before:

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

  After:

    real    0m0.750s
    user    0m0.015s
    sys     0m0.090s

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
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
SZEDER Gábor
e896369beb completion: let 'for-each-ref' and 'ls-remote' filter matching refs
When completing refs, several __git_refs() code paths list all the
refs from the refs/{heads,tags,remotes}/ hierarchy and then
__gitcomp_nl() iterates over those refs in a shell loop to filter out
refs not matching the current ref to be completed.  This comes with a
considerable performance penalty when a repository contains a lot of
refs but the current ref can be uniquely completed or when only a
handful of refs match the current ref.

Reduce the number of iterations in __gitcomp_nl() from the number of
refs to the number of matching refs by specifying appropriate globbing
patterns to 'git for-each-ref' and 'git ls-remote' to list only those
refs that match the current ref to be completed.  However, do so only
when the ref to match is explicitly given as parameter, because the
current word on the command line might contain a prefix like
'--option=' or 'branch..'.  The __git_complete_refs() and
__git_complete_fetch_refspecs() helpers introduced previously in this
patch series already call __git_refs() specifying this current ref
parameter, so all their callsites, i.e. all places in the completion
script doing refs completion, can benefit from this optimization.

Furthermore, list only those symbolic and pseudo refs that match the
current ref to be completed.  Though it doesn't matter at all in
itself performance-wise, it will allow us further significant
optimizations later in this series.

This speeds up refs completion considerably when there are a lot of
non-matching refs to be filtered out.  Uniquely completing a branch in
a repository with 100k local branches, all packed, best of five:

  On Linux, before:

    $ time __git_complete_refs --cur=maste

    real    0m0.831s
    user    0m0.808s
    sys     0m0.028s

  After:

    real    0m0.119s
    user    0m0.104s
    sys     0m0.008s

  On Windows, before:

    real    0m1.480s
    user    0m1.031s
    sys     0m0.060s

  After:

    real    0m0.377s
    user    0m0.015s
    sys     0m0.030s

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
SZEDER Gábor
b2b6811451 completion: don't disambiguate short refs
When the completion script lists short refs it does so using the 'git
for-each-ref' format 'refname:short', which makes sure that all listed
refs are unambiguous.  While disambiguating refs is technically
correct in this case, as opposed to the cases discussed in the
previous patch, this disambiguation involves several stat() syscalls
for each ref, thus, unfortunately, comes at a steep cost especially on
Windows and/or when there are a lot of refs to be listed.  A user of
Git for Windows reported[1] 'git checkout <TAB>' taking ~11 seconds in
a repository with just about 4000 refs.

However, it's questionable whether ambiguous refs are really that bad
to justify that much extra cost:

  - Ambiguous refs are not that common,
  - even if a repository contains ambiguous refs, they only hurt when
    the user actually happens to want to do something with one of the
    ambiguous refs, and
  - the issue can be easily circumvented by renaming those ambiguous
    refs.

  - On the other hand, apparently not that many refs are needed to
    make refs completion unacceptably slow on Windows,
  - and this slowness bites each and every time the user attempts refs
    completion, even when the repository doesn't contain any ambiguous
    refs.
  - Furthermore, circumventing the issue might not be possible or
    might be considerably more difficult and requires various
    trade-offs (e.g. working in a repository with only a few selected
    important refs while keeping a separate repository with all refs
    for reference).

Arguably, in this case the benefits of technical correctness are
rather minor compared to the price we pay for it, and we are better
off opting for performance over correctness.

Use the 'git for-each-ref' format 'refname:strip=2' to list short refs
to spare the substantial cost of disambiguating.

This speeds up refs completion considerably.  Uniquely completing a
branch in a repository with 100k local branches, all packed, best of
five:

  On Linux, before:

    $ time __git_complete_refs --cur=maste

    real    0m1.662s
    user    0m1.368s
    sys     0m0.296s

  After:

    real    0m0.831s
    user    0m0.808s
    sys     0m0.028s

  On Windows, before:

    real    0m12.457s
    user    0m1.016s
    sys     0m0.092s

  After:

    real    0m1.480s
    user    0m1.031s
    sys     0m0.060s

[1] - https://github.com/git-for-windows/git/issues/524

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
SZEDER Gábor
3ad8ea7ccc completion: don't disambiguate tags and branches
When the completion script has to list only tags or only branches, it
uses the 'git for-each-ref' format 'refname:short', which makes sure
that all listed tags and branches are unambiguous.  However,
disambiguating tags and branches in these cases is wrong, because:

  - __git_tags(), the helper function listing possible tagname
    arguments for 'git tag', lists an ambiguous tag
    'refs/tags/ambiguous' as 'tags/ambiguous'.  Its only consumer,
    'git tag' expects its tagname argument to be under 'refs/tags/',
    thus it interprets that abgiguous tag as
    'refs/tags/tags/ambiguous'.  Clearly wrong.

  - __git_heads() lists possible branchname arguments for 'git branch'
    and possible 'branch.<branchname>' configuration subsections.
    Both of these expect branchnames to be under 'refs/heads/' and
    misinterpret a disambiguated branchname like 'heads/ambiguous'.

Furthermore, disambiguation involves several stat() syscalls for each
tag or branch, thus comes at a steep cost especially on Windows and/or
when there are a lot of tags or branches to be listed.

Use the 'git for-each-ref' format 'refname:strip=2' instead of
'refname:short' to avoid harmful disambiguation of tags and branches
in __git_tags() and __git_heads().

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
SZEDER Gábor
aed3881359 completion: support excluding full refs
Commit 49416ad22 (completion: support excluding refs, 2016-08-24) made
possible to complete short refs with a '^' prefix.

Extend the support to full refs to make completing '^refs/...' work.

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
SZEDER Gábor
aa0644f74f completion: support completing fully qualified non-fast-forward refspecs
After 'git fetch <remote> <TAB>' our completion script offers refspecs
that will fetch to a local branch with the same name as in the remote
repository, e.g. 'master:master'.  This also completes
non-fast-forward refspecs, i.e. after a '+' prefix like
'+master:master', and fully qualified refspecs, e.g.
'refs/heads/master:refs/heads/master'.  However, it does not complete
non-fast-forward fully qualified refspecs (or fully qualified refspecs
following any other prefix, e.g. '--option=', though currently no git
command supports such an option, but third party git commands might).

These refspecs are listed by the __git_refs2() function, which is just
a thin wrapper iterating over __git_refs()'s output, turning each
listed ref into a refspec.  Now, it's certainly possible to modify
__git_refs2() and its callsite to pass an extra parameter containing
only the ref part of the current word to be completed (to follow suit
of the previous commit) to deal with prefixed fully qualified refspecs
as well.  Unfortunately, keeping the current behavior unchanged in the
"no extra parameter" case brings in a bit of subtlety, which makes the
resulting code ugly and compelled me to write a 8-line long comment in
the proof of concept.  Not good.  However, since the callsite has to
be modified for proper functioning anyway, we might as well leave
__git_refs2() as is and introduce a new helper function without
backwards compatibility concerns.

Add the new function __git_complete_fetch_refspecs() that has all the
necessary parameters to do the right thing in all cases mentioned
above, including non-fast-forward fully qualified refspecs.  This new
function can also easier benefit from optimizations coming later in
this patch series.

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
SZEDER Gábor
2ea328a119 completion: support completing full refs after '--option=refs/<TAB>'
Completing full refs currently only works when the full ref stands on
in its own on the command line, but doesn't work when the current word
to be completed contains a prefix before the full ref, e.g.
'--option=refs/<TAB>' or 'master..refs/bis<TAB>'.

The reason is that __git_refs() looks at the current word to be
completed ($cur) as a whole to decide whether it has to list full (if
it starts with 'refs/') or short refs (otherwise).  However, $cur also
holds said '--option=' or 'master..' prefixes, which of course throw
off this decision.  Luckily, the default action is to list short refs,
that's why completing short refs happens to work even after a
'master..<TAB>' prefix and similar cases.

Pass only the ref part of the current word to be completed to
__git_refs() as a new positional parameter, so it can make the right
decision even if the whole current word contains some kind of a
prefix.

Make this new parameter the 4. positional parameter and leave the 3.
as an ignored placeholder for now (it will be used later in this patch
series).

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
SZEDER Gábor
15b4a16395 completion: wrap __git_refs() for better option parsing
__git_refs() currently accepts two optional positional parameters: a
remote and a flag for 'git checkout's tracking DWIMery.  To fix a
minor bug, and, more importantly, for faster refs completion, this
series will add three more parameters: a prefix, the current word to
be completed and a suffix, i.e. the options accepted by __gitcomp() &
friends, and will change __git_refs() to list only refs matching that
given current word and to add that given prefix and suffix to the
listed refs.

However, __git_refs() is the helper function that is most likely used
in users' custom completion scriptlets for their own git commands, and
we don't want to break those, so

  - we can't change __git_refs()'s default output format, i.e. we
    can't by default append a trailing space to every listed ref,
    meaning that the suffix parameter containing the default trailing
    space would have to be specified on every invocation, and

  - we can't change the position of existing positional parameters
    either, so there would have to be plenty of set-but-empty
    placeholder positional parameters all over the completion script.

Furthermore, with five positional parameters it would be really hard
to remember which position means what.

To keep callsites simple, add the new wrapper function
__git_complete_refs() around __git_refs(), which:

  - instead of positional parameters accepts real '--opt=val'-style
    options and with minimalistic option parsing translates them to
    __git_refs()'s and __gitcomp_nl()'s positional parameters, and

  - includes the '__gitcomp_nl "$(__git_refs ...)" ...' command
    substitution to make its behavior match its name and the behavior
    of other __git_complete_* functions, and to limit future changes
    in this series to __git_refs() and this new wrapper function.

Call this wrapper function instead of __git_refs() wherever possible
throughout the completion script, i.e. when __git_refs()'s output is
fed to __gitcomp_nl() right away without further processing, which
means all callsites except a single one in the __git_refs2() helper.

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
Jeff Hostetler
4f4458aafa hashmap: document memihash_cont, hashmap_disallow_rehash api
Document memihash_cont() and hashmap_disallow_rehash()
in Documentation/technical/api-hashmap.txt.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 10:40:07 -07:00
Brandon Williams
511155db51 remote-curl: allow push options
Teach remote-curl to understand push options and to be able to convey
them across HTTP.

Signed-off-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 15:41:21 -07:00
Brandon Williams
eb7b9749f2 send-pack: send push options correctly in stateless-rpc case
"git send-pack --stateless-rpc" puts each request in a sequence of pkt-lines
followed by a flush-pkt. The push option code forgot about this and sends push
options and their terminating delimiter as ordinary pkt-lines that get their
length header stripped off by remote-curl before being sent to the server.

The result is multiple malformed requests, which the server rejects.

Fortunately send-pack --stateless-rpc already is aware of this "pkt-line within
pkt-line" framing for the update commands that precede push options. Handle
push options the same way.

Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 15:41:15 -07:00
Junio C Hamano
a4dded0189 t7406: correct test case for submodule-update initial population
There are three issues with the test:

* The syntax of the here-doc was wrong, such that the entire test was
  sucked into the here-doc, which is why the test succeeded.

* The variable $submodulesha1 was not expanded as it was inside a quoted
  here text.  We do not want to quote EOF marker for this.

* The redirection from the git command to the output file for comparison
  was wrong as the -C operator from git doesn't apply to the redirect path.
  Also we're interested in stderr of that command.

Noticed-by: Jan Palus <jan.palus@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 15:39:51 -07:00
Ævar Arnfjörð Bjarmason
57f82f4f60 t/README: change "Inside <X> part" to "Inside the <X> part"
Change the mention of "Inside the <script> part, the standard
output..." to use the definite article, which makes more sense in this
context.

This changes documentation I originally added back in commit
20873f45e7 ("t/README: Document the do's and don'ts of tests",
2010-07-02).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 15:34:53 -07:00
Ævar Arnfjörð Bjarmason
c1d44cee95 t/README: link to metacpan.org, not search.cpan.org
Change a link to the web version of the TAP::Parser::Grammar
documentation to link to metacpan.org instead of search.cpan.org.

This is something I added back in commit 20873f45e7 ("t/README:
Document the do's and don'ts of tests", 2010-07-02), at the time
search.cpan.org was the more actively maintained CPAN web-interface,
nowadays that's metacpan.org.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 15:34:39 -07:00
Thomas Gummerer
e0e7f99ea4 stash: keep untracked files intact in stash -k
Currently when there are untracked changes in a file "one" and in a file
"two" in the repository and the user uses:

    git stash push -k one

all changes in "two" are wiped out completely.  That is clearly not the
intended result.  Make sure that only the files given in the pathspec
are changed when git stash push -k <pathspec> is used.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 14:55:56 -07:00
Thomas Gummerer
869fb8f729 stash: pass the pathspec argument to git reset
For "git stash -p --no-keep-index", the pathspec argument is currently
not passed to "git reset".  This means that changes that are staged but
that are excluded from the pathspec still get unstaged by git stash -p.

Make sure that doesn't happen by passing the pathspec argument to the
git reset in question, bringing the behaviour in line with "git stash --
<pathspec>".

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 14:55:55 -07:00
Thomas Gummerer
1790f4fea0 stash: don't show internal implementation details
git stash push uses other git commands internally.  Currently it only
passes the -q flag to those if the -q flag is passed to git stash.  when
using 'git stash push -p -q --no-keep-index', it doesn't even pass the
flag on to the internal reset at all.

It really is enough for the user to know that the stash is created,
without bothering them with the internal details of what's happening.
Always pass the -q flag to the internal git clean and git reset
commands, to avoid unnecessary and potentially confusing output.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 14:55:11 -07:00
Jeff Hostetler
0607e10009 hashmap: add disallow_rehash setting
Teach hashmap to allow rehashes to be suppressed.
This is useful when hashmaps are accessed by multiple
threads.  It still requires the caller to properly
manage their locking.  This just prevents unexpected
rehashing during inserts and deletes.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 13:41:41 -07:00
Jeff Hostetler
f75619bd6d hashmap: allow memihash computation to be continued
Add variant of memihash() to allow the hash computation to
be continued.  There are times when we compute the hash on
a full path and then the hash on just the path to the parent
directory.  This can be expensive on large repositories.

With this, we can hash the parent directory first. And then
continue the computation to include the "/filename".

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 13:41:41 -07:00
Jeff Hostetler
16f9b4cdd3 name-hash: specify initial size for istate.dir_hash table
Specify an initial size for the istate.dir_hash HashMap matching
the size of the istate.name_hash.

Previously hashmap_init() was given 0, causing a 64 bucket
hashmap to be created.  When working with very large
repositories, this would cause numerous rehash() calls to
realloc and rebalance the hashmap. This is especially true
when the worktree is deep, with many directories containing
a few files.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 13:41:41 -07:00
Junio C Hamano
37e61153e2 t5615: fix a here-doc syntax error
This came as part of jk/quote-env-path-list-component and was merged
to 2.11.1 and later.

Noticed-by: Jan Palus <jan.palus@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 13:31:52 -07:00
Stefan Beller
b0176ce6b5 builtin/describe: introduce --broken flag
git-describe tells you the version number you're at, or errors out, e.g.
when you run it outside of a repository, which may happen when downloading
a tar ball instead of using git to obtain the source code.

To keep this property of only erroring out, when not in a repository,
severe (submodule) errors must be downgraded to reporting them gently
instead of having git-describe error out completely.

To achieve that a flag '--broken' is introduced, which is in the same
vein as '--dirty' but uses an actual child process to check for dirtiness.
When that child dies unexpectedly, we'll append '-broken' instead of
'-dirty'.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 10:13:41 -07:00
Stefan Beller
70471ed9bb t3600: rename test to describe its functionality
This was an oversight in 55856a35b2 (rm: absorb a submodules git dir
before deletion, 2016-12-27), as the body of the test changed without
adapting the test subject.

Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 10:13:17 -07:00
Junio C Hamano
afd6726309 Sync with maint 2017-03-21 15:11:38 -07:00
Junio C Hamano
92f74a6192 Sixth batch for 2.13
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21 15:11:13 -07:00
Junio C Hamano
fbcfbc4d5d Merge branch 'nd/commit-hook-doc-fix'
Doc fix.

* nd/commit-hook-doc-fix:
  git-commit.txt: list post-rewrite in HOOKS section
2017-03-21 15:07:20 -07:00
Junio C Hamano
b7b57b1434 Merge branch 'ab/push-default-doc-fix'
Doc fix.

* ab/push-default-doc-fix:
  push: mention "push.default=tracking" in the documentation
2017-03-21 15:07:19 -07:00
Junio C Hamano
9f43095e46 Merge branch 'ab/doc-no-option-notation-fix'
Doc fix.

* ab/doc-no-option-notation-fix:
  doc: change erroneous --[no]-whatever into --[no-]whatever
2017-03-21 15:07:19 -07:00
Junio C Hamano
8a3ff8560c Merge branch 'sb/wt-status-cleanup'
Code clean-up.

* sb/wt-status-cleanup:
  wt-status: simplify by using for_each_string_list_item
2017-03-21 15:07:18 -07:00
Junio C Hamano
434a7764ba Merge branch 'js/rebase-helper'
Recent update to "rebase -i" started showing a message that is not
a warning with "warning:" prefix by mistake.  This has been fixed.

* js/rebase-helper:
  sequencer: drop "warning:" when stopping for edit
2017-03-21 15:07:18 -07:00
Junio C Hamano
4b7989b103 Merge branch 'nd/conditional-config-include'
The configuration file learned a new "includeIf.<condition>.path"
that includes the contents of the given path only when the
condition holds.  This allows you to say "include this work-related
bit only in the repositories under my ~/work/ directory".

* nd/conditional-config-include:
  config: add conditional include
  config.txt: reflow the second include.path paragraph
  config.txt: clarify multiple key values in include.path
2017-03-21 15:07:18 -07:00
Junio C Hamano
45cbc37c5f Merge branch 'jk/pack-name-cleanups'
Code clean-up.

* jk/pack-name-cleanups:
  index-pack: make pointer-alias fallbacks safer
  replace snprintf with odb_pack_name()
  odb_pack_keep(): stop generating keepfile name
  sha1_file.c: make pack-name helper globally accessible
  move odb_* declarations out of git-compat-util.h
2017-03-21 15:07:17 -07:00
Junio C Hamano
e15b960655 Merge branch 'sb/submodule-config-parse-ignore-fix'
Code to read submodule.<name>.ignore config did not state the
variable name correctly when giving an error message diagnosing
misconfiguration.

* sb/submodule-config-parse-ignore-fix:
  submodule-config: correct error reporting for invalid ignore value
2017-03-21 15:07:17 -07:00
Junio C Hamano
cbfbf443b0 Merge branch 'mg/prompt-describe-tags'
The command line prompt (in contrib/) learned a new 'tag' style
that can be specified with GIT_PS1_DESCRIBE_STYLE, to describe a
detached HEAD with "git describe --tags".

* mg/prompt-describe-tags:
  git-prompt: add a describe style for any tags
2017-03-21 15:07:17 -07:00
Junio C Hamano
fc6b5f523a Merge branch 'jk/rev-parse-cleanup'
Code clean-up.

* jk/rev-parse-cleanup:
  rev-parse: simplify parsing of ref options
  rev-parse: add helper for parsing "--foo/--foo="
  rev-parse: use skip_prefix when parsing options
2017-03-21 15:07:16 -07:00
Junio C Hamano
8624735d9a Prepare for 2.12.2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21 15:04:12 -07:00
Junio C Hamano
71da2fb077 Merge branch 'jh/send-email-one-cc' into maint
"Cc:" on the trailer part does not have to conform to RFC strictly,
unlike in the e-mail header.  "git send-email" has been updated to
ignore anything after '>' when picking addresses, to allow non-address
cruft like " # stable 4.4" after the address.

* jh/send-email-one-cc:
  send-email: only allow one address per body tag
2017-03-21 15:03:30 -07:00
Junio C Hamano
7e02ec2c5d Merge branch 'jk/t6300-cleanup' into maint
A test that creates a confusing branch whose name is HEAD has been
corrected not to do so.

* jk/t6300-cleanup:
  t6300: avoid creating refs/heads/HEAD
2017-03-21 15:03:30 -07:00
Junio C Hamano
d6bc22e64b Merge branch 'rs/commit-parsing-optim' into maint
The code that parses header fields in the commit object has been
updated for (micro)performance and code hygiene.

* rs/commit-parsing-optim:
  commit: don't check for space twice when looking for header
  commit: be more precise when searching for headers
2017-03-21 15:03:29 -07:00