Mercurial > hg
view tests/test-convert-hg-startrev.t @ 18792:10669e24eb6c
completion: add a debugpathcomplete command
The bash_completion code uses "hg status" to generate a list of
possible completions for commands that operate on files in the
working directory. In a large working directory, this can result
in a single tab-completion being very slow (several seconds) as a
result of checking the status of every file, even when there is no
need to check status or no possible matches.
The new debugpathcomplete command gains performance in a few simple
ways:
* Allow completion to operate on just a single directory. When used
to complete the right commands, this considerably reduces the
number of completions returned, at no loss in functionality.
* Never check the status of files. For completions that really must
know if a file is modified, it is faster to use status:
hg status -nm 'glob:myprefix**'
Performance:
Here are the commands used by bash_completion to complete, run in
the root of the mozilla-central working dir (~77,000 files) and
another repo (~165,000 files):
All "normal state" files (used by e.g. remove, revert):
mozilla other
status -nmcd 'glob:**' 1.77 4.10 sec
debugpathcomplete -f -n 0.53 1.26
debugpathcomplete -n 0.17 0.41
("-f" means "complete full paths", rather than the current directory)
Tracked files matching "a":
mozilla other
status -nmcd 'glob:a**' 0.26 0.47
debugpathcomplete -f -n a 0.10 0.24
debugpathcomplete -n a 0.10 0.22
We should be able to further improve completion performance once
the critbit work lands. Right now, our performance is limited by
the need to iterate over all keys in the dirstate.
author | Bryan O'Sullivan <bryano@fb.com> |
---|---|
date | Thu, 21 Mar 2013 16:31:28 -0700 |
parents | 60101427d618 |
children | 2345c9eb73c7 |
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$ cat >> $HGRCPATH <<EOF > [extensions] > graphlog = > convert = > [convert] > hg.saverev = yes > EOF $ glog() > { > hg -R "$1" glog --template '{rev} "{desc}" files: {files}\n' > } $ hg init source $ cd source $ echo a > a $ echo b > b $ hg ci -d '0 0' -qAm '0: add a b' $ echo c > c $ hg ci -d '1 0' -qAm '1: add c' $ hg copy a e $ echo b >> b $ hg ci -d '2 0' -qAm '2: copy e from a, change b' $ hg up -C 0 1 files updated, 0 files merged, 2 files removed, 0 files unresolved $ echo a >> a $ hg ci -d '3 0' -qAm '3: change a' $ hg merge merging a and e to e 2 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg copy b d $ hg ci -d '4 0' -qAm '4: merge 2 and 3, copy d from b' $ echo a >> a $ hg ci -d '5 0' -qAm '5: change a' $ cd .. Convert from null revision $ hg convert --config convert.hg.startrev=null source full initializing destination full repository scanning source... sorting... converting... 5 0: add a b 4 1: add c 3 2: copy e from a, change b 2 3: change a 1 4: merge 2 and 3, copy d from b 0 5: change a $ glog full o 5 "5: change a" files: a | o 4 "4: merge 2 and 3, copy d from b" files: d e |\ | o 3 "3: change a" files: a | | o | 2 "2: copy e from a, change b" files: b e | | o | 1 "1: add c" files: c |/ o 0 "0: add a b" files: a b $ rm -Rf full Convert from zero revision $ hg convert --config convert.hg.startrev=0 source full initializing destination full repository scanning source... sorting... converting... 5 0: add a b 4 1: add c 3 2: copy e from a, change b 2 3: change a 1 4: merge 2 and 3, copy d from b 0 5: change a $ glog full o 5 "5: change a" files: a | o 4 "4: merge 2 and 3, copy d from b" files: d e |\ | o 3 "3: change a" files: a | | o | 2 "2: copy e from a, change b" files: b e | | o | 1 "1: add c" files: c |/ o 0 "0: add a b" files: a b Convert from merge parent $ hg convert --config convert.hg.startrev=1 source conv1 initializing destination conv1 repository scanning source... sorting... converting... 3 1: add c 2 2: copy e from a, change b 1 4: merge 2 and 3, copy d from b 0 5: change a $ glog conv1 o 3 "5: change a" files: a | o 2 "4: merge 2 and 3, copy d from b" files: a d e | o 1 "2: copy e from a, change b" files: b e | o 0 "1: add c" files: a b c $ cd conv1 $ hg up -q Check copy preservation $ hg log --follow --copies e changeset: 2:79818a521a40 user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: 4: merge 2 and 3, copy d from b changeset: 1:3e6201832cce user: test date: Thu Jan 01 00:00:02 1970 +0000 summary: 2: copy e from a, change b Check copy removal on missing parent $ hg log --follow --copies d changeset: 2:79818a521a40 user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: 4: merge 2 and 3, copy d from b $ hg cat -r tip a b a a a b b $ hg -q verify $ cd .. Convert from merge $ hg convert --config convert.hg.startrev=4 source conv4 initializing destination conv4 repository scanning source... sorting... converting... 1 4: merge 2 and 3, copy d from b 0 5: change a $ glog conv4 o 1 "5: change a" files: a | o 0 "4: merge 2 and 3, copy d from b" files: a b c d e $ cd conv4 $ hg up -C 5 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg cat -r tip a b a a a b b $ hg -q verify $ cd ..