Mercurial > hg
view tests/test-walk.t @ 49000:dd6b67d5c256 stable
rust: fix unsound `OwningDirstateMap`
As per the previous patch, `OwningDirstateMap` is unsound. Self-referential
structs are difficult to implement correctly in Rust since the compiler is
free to move structs around as much as it wants to. They are also very rarely
needed in practice, so the state-of-the-art on how they should be done within
the Rust rules is still a bit new.
The crate `ouroboros` is an attempt at providing a safe way (in the Rust sense)
of declaring self-referential structs. It is getting a lot attention and was
improved very quickly when soundness issues were found in the past: rather than
relying on our own (limited) review circle, we might as well use the de-facto
common crate to fix this problem. This will give us a much better chance of
finding issues should any new ones be discovered as well as the benefit of
fewer `unsafe` APIs of our own.
I was starting to think about how I would present a safe API to the old struct
but soon realized that the callback-based approach was already done in
`ouroboros`, along with a lot more care towards refusing incorrect structs.
In short: we don't return a mutable reference to the `DirstateMap` anymore, we
expect users of its API to pass a `FnOnce` that takes the map as an argument.
This allows our `OwningDirstateMap` to control the input and output lifetimes
of the code that modifies it to prevent such issues.
Changing to `ouroboros` meant changing every API with it, but it is relatively
low churn in the end. It correctly identified the example buggy modification of
`copy_map_insert` outlined in the previous patch as violating the borrow rules.
Differential Revision: https://phab.mercurial-scm.org/D12429
author | Raphaël Gomès <rgomes@octobus.net> |
---|---|
date | Tue, 05 Apr 2022 10:55:28 +0200 |
parents | 35f1ecd84bd0 |
children | 42d2b31cee0b |
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$ 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' [10] $ hg debugwalk -v ../.hg abort: path contains illegal component: .hg [10] $ 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 [10] $ hg debugwalk -v beans/../.hg abort: path contains illegal component: .hg [10] $ hg debugwalk -v beans/../.hg/data abort: path contains illegal component: .hg/data [10] $ hg debugwalk -v beans/.hg abort: path 'beans/.hg' is inside nested repo 'beans' [10] 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 ..