rust: peek_mut optim for lazy ancestors
This is one of the two optimizations that are also
present in the Python code: replacing pairs of pop/push
on the BinaryHeap by single updates, hence having it
under the hood maintain its consistency (sift) only once.
On Mozilla central, the measured gain (see details below)
is around 7%.
Creating the PeekMut object by calling peek_mut() right away
instead of peek() first is less efficient (gain is only 4%, stats
not included).
Our interpretation is that its creation has a cost which is vasted
in the cases where it ends by droping the value (Peekmut::pop()
just does self.heap.pop() anyway). On the other hand, the immutable
peek() is very fast: it's just taking a reference in the
underlying vector.
The Python version still has another optimization:
if parent(current) == current-1, then the heap doesn't need
to maintain its consistency, since we already know that
it's bigger than all the others in the heap.
Rust's BinaryHeap doesn't allow us to mutate its biggest
element with no housekeeping, but we tried it anyway, with a
copy of the BinaryHeap implementation with a dedicaded added
method: it's not worth the technical debt in our opinion
(we measured only a further 1.6% improvement).
One possible explanation would be that the sift is really fast
anyway in that case, whereas it's not in the case of Python,
because it's at least partly done in slow Python code.
Still it's possible that replacing BinaryHeap by something more
dedicated to discrete ordered types could be faster.
Measurements on mozilla-central:
Three runs of 'hg perfancestors' on the parent changeset:
Moyenne des médianes: 0.100587
! wall 0.100062 comb 0.100000 user 0.100000 sys 0.000000 (best of 98)
! wall 0.135804 comb 0.130000 user 0.130000 sys 0.000000 (max of 98)
! wall 0.102864 comb 0.102755 user 0.099286 sys 0.003469 (avg of 98)
! wall 0.101486 comb 0.110000 user 0.110000 sys 0.000000 (median of 98)
! wall 0.096804 comb 0.090000 user 0.090000 sys 0.000000 (best of 100)
! wall 0.132235 comb 0.130000 user 0.120000 sys 0.010000 (max of 100)
! wall 0.100258 comb 0.100300 user 0.096000 sys 0.004300 (avg of 100)
! wall 0.098384 comb 0.100000 user 0.100000 sys 0.000000 (median of 100)
! wall 0.099925 comb 0.100000 user 0.100000 sys 0.000000 (best of 98)
! wall 0.133518 comb 0.140000 user 0.130000 sys 0.010000 (max of 98)
! wall 0.102381 comb 0.102449 user 0.098265 sys 0.004184 (avg of 98)
! wall 0.101891 comb 0.090000 user 0.090000 sys 0.000000 (median of 98)
Mean of the medians: 0.100587
On the present changeset:
! wall 0.091344 comb 0.090000 user 0.090000 sys 0.000000 (best of 100)
! wall 0.122728 comb 0.120000 user 0.110000 sys 0.010000 (max of 100)
! wall 0.093268 comb 0.093300 user 0.089300 sys 0.004000 (avg of 100)
! wall 0.092567 comb 0.100000 user 0.090000 sys 0.010000 (median of 100)
! wall 0.093294 comb 0.080000 user 0.080000 sys 0.000000 (best of 100)
! wall 0.144887 comb 0.150000 user 0.140000 sys 0.010000 (max of 100)
! wall 0.097708 comb 0.097700 user 0.093400 sys 0.004300 (avg of 100)
! wall 0.094980 comb 0.100000 user 0.090000 sys 0.010000 (median of 100)
! wall 0.091262 comb 0.090000 user 0.080000 sys 0.010000 (best of 100)
! wall 0.123772 comb 0.130000 user 0.120000 sys 0.010000 (max of 100)
! wall 0.093188 comb 0.093200 user 0.089300 sys 0.003900 (avg of 100)
! wall 0.092364 comb 0.100000 user 0.090000 sys 0.010000 (median of 100)
Mean of the medians is 0.0933
Differential Revision: https://phab.mercurial-scm.org/D5358
$ 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 ..