match: optimize matcher when all patterns are of rootfilesin kind
Internally at Google, we use narrowspecs with only rootfilesin-kind
patterns. Sometimes there are thousands of such patterns
(i.e. thousands of tracked directories). In such cases, it can take
quite long to build and evaluate the resulting matcher.
This patch optimizes matchers that have only patterns of rootfilesin
so it instead of creating a regular expression, it matches the given
file's directory against the set of directories.
In a repo with ~3600 tracked directories, it takes about 1.35 s to
build the matcher and 2.7 s to walk the dirstate before this
patch. After, it takes 0.04 s to create the matcher and 0.87 s to walk
the dirstate.
It may be worthwhile to do similar optimizations for e.g. patterns of
type "kind:", but that's not a priority for us right now.
Differential Revision: https://phab.mercurial-scm.org/D5058
$ hg init t
$ cd t
$ mkdir -p beans
$ for b in kidney navy turtle borlotti black pinto; do
> echo $b > beans/$b
> done
$ mkdir -p mammals/Procyonidae
$ for m in cacomistle coatimundi raccoon; do
> echo $m > mammals/Procyonidae/$m
> done
$ echo skunk > mammals/skunk
$ echo fennel > fennel
$ echo fenugreek > fenugreek
$ echo fiddlehead > fiddlehead
$ hg addremove
adding beans/black
adding beans/borlotti
adding beans/kidney
adding beans/navy
adding beans/pinto
adding beans/turtle
adding fennel
adding fenugreek
adding fiddlehead
adding mammals/Procyonidae/cacomistle
adding mammals/Procyonidae/coatimundi
adding mammals/Procyonidae/raccoon
adding mammals/skunk
$ hg commit -m "commit #0"
$ hg debugwalk -v
* matcher:
<alwaysmatcher>
f beans/black beans/black
f beans/borlotti beans/borlotti
f beans/kidney beans/kidney
f beans/navy beans/navy
f beans/pinto beans/pinto
f beans/turtle beans/turtle
f fennel fennel
f fenugreek fenugreek
f fiddlehead fiddlehead
f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi
f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon
f mammals/skunk mammals/skunk
$ hg debugwalk -v -I.
* matcher:
<includematcher includes='(?:)'>
f beans/black beans/black
f beans/borlotti beans/borlotti
f beans/kidney beans/kidney
f beans/navy beans/navy
f beans/pinto beans/pinto
f beans/turtle beans/turtle
f fennel fennel
f fenugreek fenugreek
f fiddlehead fiddlehead
f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi
f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon
f mammals/skunk mammals/skunk
$ cd mammals
$ hg debugwalk -v
* matcher:
<alwaysmatcher>
f beans/black ../beans/black
f beans/borlotti ../beans/borlotti
f beans/kidney ../beans/kidney
f beans/navy ../beans/navy
f beans/pinto ../beans/pinto
f beans/turtle ../beans/turtle
f fennel ../fennel
f fenugreek ../fenugreek
f fiddlehead ../fiddlehead
f mammals/Procyonidae/cacomistle Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi Procyonidae/coatimundi
f mammals/Procyonidae/raccoon Procyonidae/raccoon
f mammals/skunk skunk
$ hg debugwalk -v -X ../beans
* matcher:
<differencematcher
m1=<alwaysmatcher>,
m2=<includematcher includes='(?:beans(?:/|$))'>>
f fennel ../fennel
f fenugreek ../fenugreek
f fiddlehead ../fiddlehead
f mammals/Procyonidae/cacomistle Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi Procyonidae/coatimundi
f mammals/Procyonidae/raccoon Procyonidae/raccoon
f mammals/skunk skunk
$ hg debugwalk -v -I '*k'
* matcher:
<includematcher includes='(?:mammals/[^/]*k(?:/|$))'>
f mammals/skunk skunk
$ hg debugwalk -v -I 'glob:*k'
* matcher:
<includematcher includes='(?:mammals/[^/]*k(?:/|$))'>
f mammals/skunk skunk
$ hg debugwalk -v -I 'relglob:*k'
* matcher:
<includematcher includes='(?:(?:|.*/)[^/]*k(?:/|$))'>
f beans/black ../beans/black
f fenugreek ../fenugreek
f mammals/skunk skunk
$ hg debugwalk -v -I 'relglob:*k' .
* matcher:
<intersectionmatcher
m1=<patternmatcher patterns='(?:mammals(?:/|$))'>,
m2=<includematcher includes='(?:(?:|.*/)[^/]*k(?:/|$))'>>
f mammals/skunk skunk
$ hg debugwalk -v -I 're:.*k$'
* matcher:
<includematcher includes='(?:.*k$)'>
f beans/black ../beans/black
f fenugreek ../fenugreek
f mammals/skunk skunk
$ hg debugwalk -v -I 'relre:.*k$'
* matcher:
<includematcher includes='(?:.*.*k$)'>
f beans/black ../beans/black
f fenugreek ../fenugreek
f mammals/skunk skunk
$ hg debugwalk -v -I 'path:beans'
* matcher:
<includematcher includes='(?:beans(?:/|$))'>
f beans/black ../beans/black
f beans/borlotti ../beans/borlotti
f beans/kidney ../beans/kidney
f beans/navy ../beans/navy
f beans/pinto ../beans/pinto
f beans/turtle ../beans/turtle
$ hg debugwalk -v -I 'relpath:detour/../../beans'
* matcher:
<includematcher includes='(?:beans(?:/|$))'>
f beans/black ../beans/black
f beans/borlotti ../beans/borlotti
f beans/kidney ../beans/kidney
f beans/navy ../beans/navy
f beans/pinto ../beans/pinto
f beans/turtle ../beans/turtle
$ hg debugwalk -v 'rootfilesin:'
* matcher:
<patternmatcher patterns="rootfilesin: ['.']">
f fennel ../fennel
f fenugreek ../fenugreek
f fiddlehead ../fiddlehead
$ hg debugwalk -v -I 'rootfilesin:'
* matcher:
<includematcher includes="rootfilesin: ['.']">
f fennel ../fennel
f fenugreek ../fenugreek
f fiddlehead ../fiddlehead
$ hg debugwalk -v 'rootfilesin:.'
* matcher:
<patternmatcher patterns="rootfilesin: ['.']">
f fennel ../fennel
f fenugreek ../fenugreek
f fiddlehead ../fiddlehead
$ hg debugwalk -v -I 'rootfilesin:.'
* matcher:
<includematcher includes="rootfilesin: ['.']">
f fennel ../fennel
f fenugreek ../fenugreek
f fiddlehead ../fiddlehead
$ hg debugwalk -v -X 'rootfilesin:'
* matcher:
<differencematcher
m1=<alwaysmatcher>,
m2=<includematcher includes="rootfilesin: ['.']">>
f beans/black ../beans/black
f beans/borlotti ../beans/borlotti
f beans/kidney ../beans/kidney
f beans/navy ../beans/navy
f beans/pinto ../beans/pinto
f beans/turtle ../beans/turtle
f mammals/Procyonidae/cacomistle Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi Procyonidae/coatimundi
f mammals/Procyonidae/raccoon Procyonidae/raccoon
f mammals/skunk skunk
$ hg debugwalk -v 'rootfilesin:fennel'
* matcher:
<patternmatcher patterns="rootfilesin: ['fennel']">
$ hg debugwalk -v -I 'rootfilesin:fennel'
* matcher:
<includematcher includes="rootfilesin: ['fennel']">
$ hg debugwalk -v 'rootfilesin:skunk'
* matcher:
<patternmatcher patterns="rootfilesin: ['skunk']">
$ hg debugwalk -v -I 'rootfilesin:skunk'
* matcher:
<includematcher includes="rootfilesin: ['skunk']">
$ hg debugwalk -v 'rootfilesin:beans'
* matcher:
<patternmatcher patterns="rootfilesin: ['beans']">
f beans/black ../beans/black
f beans/borlotti ../beans/borlotti
f beans/kidney ../beans/kidney
f beans/navy ../beans/navy
f beans/pinto ../beans/pinto
f beans/turtle ../beans/turtle
$ hg debugwalk -v -I 'rootfilesin:beans'
* matcher:
<includematcher includes="rootfilesin: ['beans']">
f beans/black ../beans/black
f beans/borlotti ../beans/borlotti
f beans/kidney ../beans/kidney
f beans/navy ../beans/navy
f beans/pinto ../beans/pinto
f beans/turtle ../beans/turtle
$ hg debugwalk -v 'rootfilesin:mammals'
* matcher:
<patternmatcher patterns="rootfilesin: ['mammals']">
f mammals/skunk skunk
$ hg debugwalk -v -I 'rootfilesin:mammals'
* matcher:
<includematcher includes="rootfilesin: ['mammals']">
f mammals/skunk skunk
$ hg debugwalk -v 'rootfilesin:mammals/'
* matcher:
<patternmatcher patterns="rootfilesin: ['mammals']">
f mammals/skunk skunk
$ hg debugwalk -v -I 'rootfilesin:mammals/'
* matcher:
<includematcher includes="rootfilesin: ['mammals']">
f mammals/skunk skunk
$ hg debugwalk -v -X 'rootfilesin:mammals'
* matcher:
<differencematcher
m1=<alwaysmatcher>,
m2=<includematcher includes="rootfilesin: ['mammals']">>
f beans/black ../beans/black
f beans/borlotti ../beans/borlotti
f beans/kidney ../beans/kidney
f beans/navy ../beans/navy
f beans/pinto ../beans/pinto
f beans/turtle ../beans/turtle
f fennel ../fennel
f fenugreek ../fenugreek
f fiddlehead ../fiddlehead
f mammals/Procyonidae/cacomistle Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi Procyonidae/coatimundi
f mammals/Procyonidae/raccoon Procyonidae/raccoon
$ hg debugwalk -v .
* matcher:
<patternmatcher patterns='(?:mammals(?:/|$))'>
f mammals/Procyonidae/cacomistle Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi Procyonidae/coatimundi
f mammals/Procyonidae/raccoon Procyonidae/raccoon
f mammals/skunk skunk
$ hg debugwalk -v -I.
* matcher:
<includematcher includes='(?:mammals(?:/|$))'>
f mammals/Procyonidae/cacomistle Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi Procyonidae/coatimundi
f mammals/Procyonidae/raccoon Procyonidae/raccoon
f mammals/skunk skunk
$ hg debugwalk -v Procyonidae
* matcher:
<patternmatcher patterns='(?:mammals/Procyonidae(?:/|$))'>
f mammals/Procyonidae/cacomistle Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi Procyonidae/coatimundi
f mammals/Procyonidae/raccoon Procyonidae/raccoon
$ cd Procyonidae
$ hg debugwalk -v .
* matcher:
<patternmatcher patterns='(?:mammals/Procyonidae(?:/|$))'>
f mammals/Procyonidae/cacomistle cacomistle
f mammals/Procyonidae/coatimundi coatimundi
f mammals/Procyonidae/raccoon raccoon
$ hg debugwalk -v ..
* matcher:
<patternmatcher patterns='(?:mammals(?:/|$))'>
f mammals/Procyonidae/cacomistle cacomistle
f mammals/Procyonidae/coatimundi coatimundi
f mammals/Procyonidae/raccoon raccoon
f mammals/skunk ../skunk
$ cd ..
$ hg debugwalk -v ../beans
* matcher:
<patternmatcher patterns='(?:beans(?:/|$))'>
f beans/black ../beans/black
f beans/borlotti ../beans/borlotti
f beans/kidney ../beans/kidney
f beans/navy ../beans/navy
f beans/pinto ../beans/pinto
f beans/turtle ../beans/turtle
$ hg debugwalk -v .
* matcher:
<patternmatcher patterns='(?:mammals(?:/|$))'>
f mammals/Procyonidae/cacomistle Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi Procyonidae/coatimundi
f mammals/Procyonidae/raccoon Procyonidae/raccoon
f mammals/skunk skunk
$ hg debugwalk -v .hg
abort: path 'mammals/.hg' is inside nested repo 'mammals'
[255]
$ hg debugwalk -v ../.hg
abort: path contains illegal component: .hg
[255]
$ cd ..
$ hg debugwalk -v -Ibeans
* matcher:
<includematcher includes='(?:beans(?:/|$))'>
f beans/black beans/black
f beans/borlotti beans/borlotti
f beans/kidney beans/kidney
f beans/navy beans/navy
f beans/pinto beans/pinto
f beans/turtle beans/turtle
$ hg debugwalk -v -I '{*,{b,m}*/*}k'
* matcher:
<includematcher includes='(?:(?:[^/]*|(?:b|m)[^/]*/[^/]*)k(?:/|$))'>
f beans/black beans/black
f fenugreek fenugreek
f mammals/skunk mammals/skunk
$ hg debugwalk -v -Ibeans mammals
* matcher:
<intersectionmatcher
m1=<patternmatcher patterns='(?:mammals(?:/|$))'>,
m2=<includematcher includes='(?:beans(?:/|$))'>>
$ hg debugwalk -v -Inon-existent
* matcher:
<includematcher includes='(?:non\\-existent(?:/|$))'>
$ hg debugwalk -v -Inon-existent -Ibeans/black
* matcher:
<includematcher includes='(?:non\\-existent(?:/|$)|beans/black(?:/|$))'>
f beans/black beans/black
$ hg debugwalk -v -Ibeans beans/black
* matcher:
<intersectionmatcher
m1=<patternmatcher patterns='(?:beans/black(?:/|$))'>,
m2=<includematcher includes='(?:beans(?:/|$))'>>
f beans/black beans/black exact
$ hg debugwalk -v -Ibeans/black beans
* matcher:
<intersectionmatcher
m1=<patternmatcher patterns='(?:beans(?:/|$))'>,
m2=<includematcher includes='(?:beans/black(?:/|$))'>>
f beans/black beans/black
$ hg debugwalk -v -Xbeans/black beans
* matcher:
<differencematcher
m1=<patternmatcher patterns='(?:beans(?:/|$))'>,
m2=<includematcher includes='(?:beans/black(?:/|$))'>>
f beans/borlotti beans/borlotti
f beans/kidney beans/kidney
f beans/navy beans/navy
f beans/pinto beans/pinto
f beans/turtle beans/turtle
$ hg debugwalk -v -Xbeans/black -Ibeans
* matcher:
<differencematcher
m1=<includematcher includes='(?:beans(?:/|$))'>,
m2=<includematcher includes='(?:beans/black(?:/|$))'>>
f beans/borlotti beans/borlotti
f beans/kidney beans/kidney
f beans/navy beans/navy
f beans/pinto beans/pinto
f beans/turtle beans/turtle
$ hg debugwalk -v -Xbeans/black beans/black
* matcher:
<differencematcher
m1=<patternmatcher patterns='(?:beans/black(?:/|$))'>,
m2=<includematcher includes='(?:beans/black(?:/|$))'>>
$ hg debugwalk -v -Xbeans/black -Ibeans/black
* matcher:
<differencematcher
m1=<includematcher includes='(?:beans/black(?:/|$))'>,
m2=<includematcher includes='(?:beans/black(?:/|$))'>>
$ hg debugwalk -v -Xbeans beans/black
* matcher:
<differencematcher
m1=<patternmatcher patterns='(?:beans/black(?:/|$))'>,
m2=<includematcher includes='(?:beans(?:/|$))'>>
$ hg debugwalk -v -Xbeans -Ibeans/black
* matcher:
<differencematcher
m1=<includematcher includes='(?:beans/black(?:/|$))'>,
m2=<includematcher includes='(?:beans(?:/|$))'>>
$ hg debugwalk -v 'glob:mammals/../beans/b*'
* matcher:
<patternmatcher patterns='(?:beans/b[^/]*$)'>
f beans/black beans/black
f beans/borlotti beans/borlotti
$ hg debugwalk -v '-X*/Procyonidae' mammals
* matcher:
<differencematcher
m1=<patternmatcher patterns='(?:mammals(?:/|$))'>,
m2=<includematcher includes='(?:[^/]*/Procyonidae(?:/|$))'>>
f mammals/skunk mammals/skunk
$ hg debugwalk -v path:mammals
* matcher:
<patternmatcher patterns='(?:mammals(?:/|$))'>
f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi
f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon
f mammals/skunk mammals/skunk
$ hg debugwalk -v ..
abort: .. not under root '$TESTTMP/t'
[255]
$ hg debugwalk -v beans/../..
abort: beans/../.. not under root '$TESTTMP/t'
[255]
$ hg debugwalk -v .hg
abort: path contains illegal component: .hg
[255]
$ hg debugwalk -v beans/../.hg
abort: path contains illegal component: .hg
[255]
$ hg debugwalk -v beans/../.hg/data
abort: path contains illegal component: .hg/data
[255]
$ hg debugwalk -v beans/.hg
abort: path 'beans/.hg' is inside nested repo 'beans'
[255]
Test explicit paths and excludes:
$ hg debugwalk -v fennel -X fennel
* matcher:
<differencematcher
m1=<patternmatcher patterns='(?:fennel(?:/|$))'>,
m2=<includematcher includes='(?:fennel(?:/|$))'>>
$ hg debugwalk -v fennel -X 'f*'
* matcher:
<differencematcher
m1=<patternmatcher patterns='(?:fennel(?:/|$))'>,
m2=<includematcher includes='(?:f[^/]*(?:/|$))'>>
$ hg debugwalk -v beans/black -X 'path:beans'
* matcher:
<differencematcher
m1=<patternmatcher patterns='(?:beans/black(?:/|$))'>,
m2=<includematcher includes='(?:beans(?:/|$))'>>
$ hg debugwalk -v -I 'path:beans/black' -X 'path:beans'
* matcher:
<differencematcher
m1=<includematcher includes='(?:beans/black(?:/|$))'>,
m2=<includematcher includes='(?:beans(?:/|$))'>>
Test absolute paths:
$ hg debugwalk -v `pwd`/beans
* matcher:
<patternmatcher patterns='(?:beans(?:/|$))'>
f beans/black beans/black
f beans/borlotti beans/borlotti
f beans/kidney beans/kidney
f beans/navy beans/navy
f beans/pinto beans/pinto
f beans/turtle beans/turtle
$ hg debugwalk -v `pwd`/..
abort: $TESTTMP/t/.. not under root '$TESTTMP/t'
[255]
Test patterns:
$ hg debugwalk -v glob:\*
* matcher:
<patternmatcher patterns='(?:[^/]*$)'>
f fennel fennel
f fenugreek fenugreek
f fiddlehead fiddlehead
#if eol-in-paths
$ echo glob:glob > glob:glob
$ hg addremove
adding glob:glob
warning: filename contains ':', which is reserved on Windows: 'glob:glob'
$ hg debugwalk -v glob:\*
* matcher:
<patternmatcher patterns='(?:[^/]*$)'>
f fennel fennel
f fenugreek fenugreek
f fiddlehead fiddlehead
f glob:glob glob:glob
$ hg debugwalk -v glob:glob
* matcher:
<patternmatcher patterns='(?:glob$)'>
glob: $ENOENT$
$ hg debugwalk -v glob:glob:glob
* matcher:
<patternmatcher patterns='(?:glob:glob$)'>
f glob:glob glob:glob exact
$ hg debugwalk -v path:glob:glob
* matcher:
<patternmatcher patterns='(?:glob:glob(?:/|$))'>
f glob:glob glob:glob exact
$ rm glob:glob
$ hg addremove
removing glob:glob
#endif
$ hg debugwalk -v 'glob:**e'
* matcher:
<patternmatcher patterns='(?:.*e$)'>
f beans/turtle beans/turtle
f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle
$ hg debugwalk -v 're:.*[kb]$'
* matcher:
<patternmatcher patterns='(?:.*[kb]$)'>
f beans/black beans/black
f fenugreek fenugreek
f mammals/skunk mammals/skunk
$ hg debugwalk -v path:beans/black
* matcher:
<patternmatcher patterns='(?:beans/black(?:/|$))'>
f beans/black beans/black exact
$ hg debugwalk -v path:beans//black
* matcher:
<patternmatcher patterns='(?:beans/black(?:/|$))'>
f beans/black beans/black exact
$ hg debugwalk -v relglob:Procyonidae
* matcher:
<patternmatcher patterns='(?:(?:|.*/)Procyonidae$)'>
$ hg debugwalk -v 'relglob:Procyonidae/**'
* matcher:
<patternmatcher patterns='(?:(?:|.*/)Procyonidae/.*$)'>
f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi
f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon
$ hg debugwalk -v 'relglob:Procyonidae/**' fennel
* matcher:
<patternmatcher patterns='(?:(?:|.*/)Procyonidae/.*$|fennel(?:/|$))'>
f fennel fennel exact
f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi
f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon
$ hg debugwalk -v beans 'glob:beans/*'
* matcher:
<patternmatcher patterns='(?:beans(?:/|$)|beans/[^/]*$)'>
f beans/black beans/black
f beans/borlotti beans/borlotti
f beans/kidney beans/kidney
f beans/navy beans/navy
f beans/pinto beans/pinto
f beans/turtle beans/turtle
$ hg debugwalk -v 'glob:mamm**'
* matcher:
<patternmatcher patterns='(?:mamm.*$)'>
f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi
f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon
f mammals/skunk mammals/skunk
$ hg debugwalk -v 'glob:mamm**' fennel
* matcher:
<patternmatcher patterns='(?:mamm.*$|fennel(?:/|$))'>
f fennel fennel exact
f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle
f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi
f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon
f mammals/skunk mammals/skunk
$ hg debugwalk -v 'glob:j*'
* matcher:
<patternmatcher patterns='(?:j[^/]*$)'>
$ hg debugwalk -v NOEXIST
* matcher:
<patternmatcher patterns='(?:NOEXIST(?:/|$))'>
NOEXIST: * (glob)
#if fifo
$ mkfifo fifo
$ hg debugwalk -v fifo
* matcher:
<patternmatcher patterns='(?:fifo(?:/|$))'>
fifo: unsupported file type (type is fifo)
#endif
$ rm fenugreek
$ hg debugwalk -v fenugreek
* matcher:
<patternmatcher patterns='(?:fenugreek(?:/|$))'>
f fenugreek fenugreek exact
$ hg rm fenugreek
$ hg debugwalk -v fenugreek
* matcher:
<patternmatcher patterns='(?:fenugreek(?:/|$))'>
f fenugreek fenugreek exact
$ touch new
$ hg debugwalk -v new
* matcher:
<patternmatcher patterns='(?:new(?:/|$))'>
f new new exact
$ mkdir ignored
$ touch ignored/file
$ echo '^ignored$' > .hgignore
$ hg debugwalk -v ignored
* matcher:
<patternmatcher patterns='(?:ignored(?:/|$))'>
$ hg debugwalk -v ignored/file
* matcher:
<patternmatcher patterns='(?:ignored/file(?:/|$))'>
f ignored/file ignored/file exact
Test listfile and listfile0
$ "$PYTHON" -c "open('listfile0', 'wb').write(b'fenugreek\0new\0')"
$ hg debugwalk -v -I 'listfile0:listfile0'
* matcher:
<includematcher includes='(?:fenugreek(?:/|$)|new(?:/|$))'>
f fenugreek fenugreek
f new new
$ "$PYTHON" -c "open('listfile', 'wb').write(b'fenugreek\nnew\r\nmammals/skunk\n')"
$ hg debugwalk -v -I 'listfile:listfile'
* matcher:
<includematcher includes='(?:fenugreek(?:/|$)|new(?:/|$)|mammals/skunk(?:/|$))'>
f fenugreek fenugreek
f mammals/skunk mammals/skunk
f new new
$ cd ..
$ hg debugwalk -v -R t t/mammals/skunk
* matcher:
<patternmatcher patterns='(?:mammals/skunk(?:/|$))'>
f mammals/skunk t/mammals/skunk exact
$ mkdir t2
$ cd t2
$ hg debugwalk -v -R ../t ../t/mammals/skunk
* matcher:
<patternmatcher patterns='(?:mammals/skunk(?:/|$))'>
f mammals/skunk ../t/mammals/skunk exact
$ hg debugwalk -v --cwd ../t mammals/skunk
* matcher:
<patternmatcher patterns='(?:mammals/skunk(?:/|$))'>
f mammals/skunk mammals/skunk exact
$ cd ..
Test split patterns on overflow
$ cd t
$ echo fennel > overflow.list
$ cat >> printnum.py <<EOF
> from __future__ import print_function
> for i in range(20000 // 100):
> print('x' * 100)
> EOF
$ "$PYTHON" printnum.py >> overflow.list
$ echo fenugreek >> overflow.list
$ hg debugwalk 'listfile:overflow.list' 2>&1 | egrep -v '^xxx'
f fennel fennel exact
f fenugreek fenugreek exact
$ cd ..