Mercurial > hg
view tests/test-extdiff.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 | b623e323c561 |
children | 26f7c8033bed |
line wrap: on
line source
$ echo "[extensions]" >> $HGRCPATH $ echo "extdiff=" >> $HGRCPATH $ hg init a $ cd a $ echo a > a $ echo b > b $ hg add adding a adding b Should diff cloned directories: $ hg extdiff -o -r $opt Only in a: a Only in a: b [1] $ echo "[extdiff]" >> $HGRCPATH $ echo "cmd.falabala=echo" >> $HGRCPATH $ echo "opts.falabala=diffing" >> $HGRCPATH $ hg falabala diffing a.000000000000 a [1] $ hg help falabala hg falabala [OPTION]... [FILE]... use 'echo' to diff repository (or selected files) Show differences between revisions for the specified files, using the 'echo' program. When two revision arguments are given, then changes are shown between those revisions. If only one revision is specified then that revision is compared to the working directory, and, when no revisions are specified, the working directory files are compared to its parent. options: -o --option OPT [+] pass option to comparison program -r --rev REV [+] revision -c --change REV change made by revision -I --include PATTERN [+] include names matching the given patterns -X --exclude PATTERN [+] exclude names matching the given patterns [+] marked option can be specified multiple times use "hg -v help falabala" to show the global options $ hg ci -d '0 0' -mtest1 $ echo b >> a $ hg ci -d '1 0' -mtest2 Should diff cloned files directly: $ hg falabala -r 0:1 diffing */extdiff.*/a.8a5febb7f867/a a.34eed99112ab/a (glob) [1] Test diff during merge: $ hg update -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo c >> c $ hg add c $ hg ci -m "new branch" -d '1 0' created new head $ hg merge 1 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) Should diff cloned file against wc file: $ hg falabala diffing */extdiff.*/a.2a13a4d2da36/a */a/a (glob) [1] Test --change option: $ hg ci -d '2 0' -mtest3 $ hg falabala -c 1 diffing */extdiff.*/a.8a5febb7f867/a a.34eed99112ab/a (glob) [1] Check diff are made from the first parent: $ hg falabala -c 3 || echo "diff-like tools yield a non-zero exit code" diffing */extdiff.*/a.2a13a4d2da36/a a.46c0e4daeb72/a (glob) diff-like tools yield a non-zero exit code #if execbit Test extdiff of multiple files in tmp dir: $ hg update -C 0 > /dev/null $ echo changed > a $ echo changed > b $ chmod +x b Diff in working directory, before: $ hg diff --git diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,1 @@ -a +changed diff --git a/b b/b old mode 100644 new mode 100755 --- a/b +++ b/b @@ -1,1 +1,1 @@ -b +changed Edit with extdiff -p: Prepare custom diff/edit tool: $ cat > 'diff tool.py' << EOT > #!/usr/bin/env python > import time > time.sleep(1) # avoid unchanged-timestamp problems > file('a/a', 'ab').write('edited\n') > file('a/b', 'ab').write('edited\n') > EOT $ chmod +x 'diff tool.py' will change to /tmp/extdiff.TMP and populate directories a.TMP and a and start tool $ hg extdiff -p "`pwd`/diff tool.py" [1] Diff in working directory, after: $ hg diff --git diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,2 @@ -a +changed +edited diff --git a/b b/b old mode 100644 new mode 100755 --- a/b +++ b/b @@ -1,1 +1,2 @@ -b +changed +edited Test extdiff with --option: $ hg extdiff -p echo -o this -c 1 this */extdiff.*/a.8a5febb7f867/a a.34eed99112ab/a (glob) [1] $ hg falabala -o this -c 1 diffing this */extdiff.*/a.8a5febb7f867/a a.34eed99112ab/a (glob) [1] Test with revsets: $ hg extdif -p echo -c "rev(1)" */extdiff.*/a.8a5febb7f867/a a.34eed99112ab/a (glob) [1] $ hg extdif -p echo -r "0::1" */extdiff.*/a.8a5febb7f867/a a.34eed99112ab/a (glob) [1] $ cd .. #endif #if symlink Test symlinks handling (issue1909) $ hg init testsymlinks $ cd testsymlinks $ echo a > a $ hg ci -Am adda adding a $ echo a >> a $ ln -s missing linka $ hg add linka $ hg falabala -r 0 --traceback diffing testsymlinks.07f494440405 testsymlinks [1] $ cd .. #endif