Mercurial > hg
view tests/test-fileset.t @ 42044:bb271ec2fbfb
compression: introduce a `storage.revlog.zstd.level` configuration
This option control the zstd compression level used when compressing revlog
chunk. The usage of zstd for revlog compression has not graduated from
experimental yet, but we intend to fix that soon.
The option name for the compression level is more straight forward to pick, so
this changesets comes first. Having a dedicated option for each compression
engine is useful because they don't support the same range of values.
I ran the same measurement as for the zlib compression level (in the parent
changesets). The variation in repository size is stay mostly in the same (small)
range. The "read/write" performance see smallish variation, but are overall much
better than zlib. Write performance show the same tend of having better write
performance for when reaching high-end compression.
Again, we don't intend to change the default zstd compression level (currently:
3) in this series. However this is worth investigating in the future.
The Performance comparison of zlib vs zstd is quite impressive. The repository
size stay in the same range, but the performance are much better in all
situations.
Comparison summary
==================
We are looking at:
- performance range for zlib
- performance range for zstd
- comparison of default zstd (level-3) to default zlib (level 6)
- comparison of the slowest zstd time to the fastest zlib time
Read performance:
-----------------
| zlib | zstd | cmp | f2s
mercurial | 0.170159 - 0.189219 | 0.144127 - 0.149624 | 80% | 88%
pypy | 2.679217 - 2.768691 | 1.532317 - 1.705044 | 60% | 63%
netbeans | 122.477027 - 141.620281 | 72.996346 - 89.731560 | 58% | 73%
mozilla | 147.867662 - 170.572118 | 91.700995 - 105.853099 | 56% | 71%
Write performance:
------------------
| zlib | zstd | cmp | f2s
mercurial | 53.250304 - 56.2936129 | 40.877025 - 45.677286 | 75% | 86%
pypy | 460.721984 - 476.589918 | 270.545409 - 301.002219 | 63% | 65%
netbeans | 520.560316 - 715.930400 | 370.356311 - 428.329652 | 55% | 82%
mozilla | 739.803002 - 987.056093 | 505.152906 - 591.930683 | 57% | 80%
Raw data
--------
repo alg lvl .hg/store size 00manifest.d read write
mercurial zlib 1 49,402,813 5,963,475 0.170159 53.250304
mercurial zlib 6 47,197,397 5,875,730 0.182820 56.264320
mercurial zlib 9 47,121,596 5,849,781 0.189219 56.293612
mercurial zstd 1 49,737,084 5,966,355 0.144127 40.877025
mercurial zstd 3 48,961,867 5,895,208 0.146376 42.268142
mercurial zstd 5 48,200,592 5,938,676 0.149624 43.162875
mercurial zstd 10 47,833,520 5,913,353 0.145185 44.012489
mercurial zstd 15 47,314,604 5,728,679 0.147686 45.677286
mercurial zstd 20 47,330,502 5,830,539 0.145789 45.025407
mercurial zstd 22 47,330,076 5,830,539 0.143996 44.690460
pypy zlib 1 370,830,572 28,462,425 2.679217 460.721984
pypy zlib 6 340,112,317 27,648,747 2.768691 467.537158
pypy zlib 9 338,360,736 27,639,003 2.763495 476.589918
pypy zstd 1 362,377,479 27,916,214 1.532317 270.545409
pypy zstd 3 354,137,693 27,905,988 1.686718 294.951509
pypy zstd 5 342,640,043 27,655,774 1.705044 301.002219
pypy zstd 10 334,224,327 27,164,493 1.567287 285.186239
pypy zstd 15 329,000,363 26,645,965 1.637729 299.561332
pypy zstd 20 324,534,039 26,199,547 1.526813 302.149827
pypy zstd 22 324,530,595 26,198,932 1.525718 307.821218
netbeans zlib 1 1,281,847,810 165,495,457 122.477027 520.560316
netbeans zlib 6 1,205,284,353 159,161,207 139.876147 715.930400
netbeans zlib 9 1,197,135,671 155,034,586 141.620281 678.297064
netbeans zstd 1 1,259,581,737 160,840,613 72.996346 370.356311
netbeans zstd 3 1,232,978,122 157,691,551 81.622317 396.733087
netbeans zstd 5 1,208,034,075 160,246,880 83.080549 364.342626
netbeans zstd 10 1,188,624,176 156,083,417 79.323935 403.594602
netbeans zstd 15 1,176,973,589 153,859,477 89.731560 428.329652
netbeans zstd 20 1,162,958,258 151,147,535 82.842667 392.335349
netbeans zstd 22 1,162,707,029 151,150,220 82.565695 402.840655
mozilla zlib 1 2,775,497,186 298,527,987 147.867662 751.263721
mozilla zlib 6 2,596,856,420 286,597,671 170.572118 987.056093
mozilla zlib 9 2,587,542,494 287,018,264 163.622338 739.803002
mozilla zstd 1 2,723,159,348 286,617,532 91.700995 570.042751
mozilla zstd 3 2,665,055,001 286,152,013 95.240155 561.412805
mozilla zstd 5 2,607,819,817 288,060,030 101.978048 505.152906
mozilla zstd 10 2,558,761,085 283,967,648 104.113481 497.771202
mozilla zstd 15 2,526,216,060 275,581,300 105.853099 591.930683
mozilla zstd 20 2,485,114,806 266,478,859 95.268795 576.515389
mozilla zstd 22 2,484,869,080 266,456,505 94.429282 572.785537
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Wed, 27 Mar 2019 18:35:59 +0100 |
parents | 3984409e144b |
children | 0a0bad6d7ac0 |
line wrap: on
line source
$ fileset() { > hg debugfileset --all-files "$@" > } $ hg init repo $ cd repo $ echo a > a1 $ echo a > a2 $ echo b > b1 $ echo b > b2 $ hg ci -Am addfiles adding a1 adding a2 adding b1 adding b2 Test operators and basic patterns $ fileset -v a1 (symbol 'a1') * matcher: <patternmatcher patterns='a1$'> a1 $ fileset -v 'a*' (symbol 'a*') * matcher: <patternmatcher patterns='a[^/]*$'> a1 a2 $ fileset -v '"re:a\d"' (string 're:a\\d') * matcher: <patternmatcher patterns='a\\d'> a1 a2 $ fileset -v '!re:"a\d"' (not (kindpat (symbol 're') (string 'a\\d'))) * matcher: <predicatenmatcher pred=<not <patternmatcher patterns='a\\d'>>> b1 b2 $ fileset -v 'path:a1 or glob:b?' (or (kindpat (symbol 'path') (symbol 'a1')) (kindpat (symbol 'glob') (symbol 'b?'))) * matcher: <patternmatcher patterns='a1(?:/|$)|b.$'> a1 b1 b2 $ fileset -v --no-show-matcher 'a1 or a2' (or (symbol 'a1') (symbol 'a2')) a1 a2 $ fileset 'a1 | a2' a1 a2 $ fileset 'a* and "*1"' a1 $ fileset 'a* & "*1"' a1 $ fileset 'not (r"a*")' b1 b2 $ fileset '! ("a*")' b1 b2 $ fileset 'a* - a1' a2 $ fileset 'a_b' $ fileset '"\xy"' hg: parse error: invalid \x escape* (glob) [255] Test invalid syntax $ fileset -v '"added"()' (func (string 'added') None) hg: parse error: not a symbol [255] $ fileset -v '()()' (func (group None) None) hg: parse error: not a symbol [255] $ fileset -v -- '-x' (negate (symbol 'x')) hg: parse error: can't use negate operator in this context [255] $ fileset -v -- '-()' (negate (group None)) hg: parse error: can't use negate operator in this context [255] $ fileset -p parsed 'a, b, c' * parsed: (list (symbol 'a') (symbol 'b') (symbol 'c')) hg: parse error: can't use a list in this context (see 'hg help "filesets.x or y"') [255] $ fileset '"path":.' hg: parse error: not a symbol [255] $ fileset 'path:foo bar' hg: parse error at 9: invalid token [255] $ fileset 'foo:bar:baz' hg: parse error: not a symbol [255] $ fileset 'foo:bar()' hg: parse error: pattern must be a string [255] $ fileset 'foo:bar' hg: parse error: invalid pattern kind: foo [255] Show parsed tree at stages: $ fileset -p unknown a abort: invalid stage name: unknown [255] $ fileset -p parsed 'path:a1 or glob:b?' * parsed: (or (kindpat (symbol 'path') (symbol 'a1')) (kindpat (symbol 'glob') (symbol 'b?'))) a1 b1 b2 $ fileset -p all -s 'a1 or a2 or (grep("b") & clean())' * parsed: (or (symbol 'a1') (symbol 'a2') (group (and (func (symbol 'grep') (string 'b')) (func (symbol 'clean') None)))) * analyzed: (or (symbol 'a1') (symbol 'a2') (and (func (symbol 'grep') (string 'b')) (withstatus (func (symbol 'clean') None) (string 'clean')))) * optimized: (or (patterns (symbol 'a1') (symbol 'a2')) (and (withstatus (func (symbol 'clean') None) (string 'clean')) (func (symbol 'grep') (string 'b')))) * matcher: <unionmatcher matchers=[ <patternmatcher patterns='a1$|a2$'>, <intersectionmatcher m1=<predicatenmatcher pred=clean>, m2=<predicatenmatcher pred=grep('b')>>]> a1 a2 b1 b2 Union of basic patterns: $ fileset -p optimized -s -r. 'a1 or a2 or path:b1' * optimized: (patterns (symbol 'a1') (symbol 'a2') (kindpat (symbol 'path') (symbol 'b1'))) * matcher: <patternmatcher patterns='a1$|a2$|b1(?:/|$)'> a1 a2 b1 OR expression should be reordered by weight: $ fileset -p optimized -s -r. 'grep("a") or a1 or grep("b") or b2' * optimized: (or (patterns (symbol 'a1') (symbol 'b2')) (func (symbol 'grep') (string 'a')) (func (symbol 'grep') (string 'b'))) * matcher: <unionmatcher matchers=[ <patternmatcher patterns='a1$|b2$'>, <predicatenmatcher pred=grep('a')>, <predicatenmatcher pred=grep('b')>]> a1 a2 b1 b2 Use differencematcher for 'x and not y': $ fileset -p optimized -s 'a* and not a1' * optimized: (minus (symbol 'a*') (symbol 'a1')) * matcher: <differencematcher m1=<patternmatcher patterns='a[^/]*$'>, m2=<patternmatcher patterns='a1$'>> a2 $ fileset -p optimized -s '!binary() and a*' * optimized: (minus (symbol 'a*') (func (symbol 'binary') None)) * matcher: <differencematcher m1=<patternmatcher patterns='a[^/]*$'>, m2=<predicatenmatcher pred=binary>> a1 a2 'x - y' is rewritten to 'x and not y' first so the operands can be reordered: $ fileset -p analyzed -p optimized -s 'a* - a1' * analyzed: (and (symbol 'a*') (not (symbol 'a1'))) * optimized: (minus (symbol 'a*') (symbol 'a1')) * matcher: <differencematcher m1=<patternmatcher patterns='a[^/]*$'>, m2=<patternmatcher patterns='a1$'>> a2 $ fileset -p analyzed -p optimized -s 'binary() - a*' * analyzed: (and (func (symbol 'binary') None) (not (symbol 'a*'))) * optimized: (and (not (symbol 'a*')) (func (symbol 'binary') None)) * matcher: <intersectionmatcher m1=<predicatenmatcher pred=<not <patternmatcher patterns='a[^/]*$'>>>, m2=<predicatenmatcher pred=binary>> Test files status $ rm a1 $ hg rm a2 $ echo b >> b2 $ hg cp b1 c1 $ echo c > c2 $ echo c > c3 $ cat > .hgignore <<EOF > \.hgignore > 2$ > EOF $ fileset 'modified()' b2 $ fileset 'added()' c1 $ fileset 'removed()' a2 $ fileset 'deleted()' a1 $ fileset 'missing()' a1 $ fileset 'unknown()' c3 $ fileset 'ignored()' .hgignore c2 $ fileset 'hgignore()' .hgignore a2 b2 c2 $ fileset 'clean()' b1 $ fileset 'copied()' c1 Test files status in different revisions $ hg status -m M b2 $ fileset -r0 'revs("wdir()", modified())' --traceback b2 $ hg status -a A c1 $ fileset -r0 'revs("wdir()", added())' c1 $ hg status --change 0 -a A a1 A a2 A b1 A b2 $ hg status -mru M b2 R a2 ? c3 $ fileset -r0 'added() and revs("wdir()", modified() or removed() or unknown())' a2 b2 $ fileset -r0 'added() or revs("wdir()", added())' a1 a2 b1 b2 c1 Test insertion of status hints $ fileset -p optimized 'added()' * optimized: (withstatus (func (symbol 'added') None) (string 'added')) c1 $ fileset -p optimized 'a* & removed()' * optimized: (and (symbol 'a*') (withstatus (func (symbol 'removed') None) (string 'removed'))) a2 $ fileset -p optimized 'a* - removed()' * optimized: (minus (symbol 'a*') (withstatus (func (symbol 'removed') None) (string 'removed'))) a1 $ fileset -p analyzed -p optimized '(added() + removed()) - a*' * analyzed: (and (withstatus (or (func (symbol 'added') None) (func (symbol 'removed') None)) (string 'added removed')) (not (symbol 'a*'))) * optimized: (and (not (symbol 'a*')) (withstatus (or (func (symbol 'added') None) (func (symbol 'removed') None)) (string 'added removed'))) c1 $ fileset -p optimized 'a* + b* + added() + unknown()' * optimized: (withstatus (or (patterns (symbol 'a*') (symbol 'b*')) (func (symbol 'added') None) (func (symbol 'unknown') None)) (string 'added unknown')) a1 a2 b1 b2 c1 c3 $ fileset -p analyzed -p optimized 'removed() & missing() & a*' * analyzed: (and (withstatus (and (func (symbol 'removed') None) (func (symbol 'missing') None)) (string 'removed missing')) (symbol 'a*')) * optimized: (and (symbol 'a*') (withstatus (and (func (symbol 'removed') None) (func (symbol 'missing') None)) (string 'removed missing'))) $ fileset -p optimized 'clean() & revs(0, added())' * optimized: (and (withstatus (func (symbol 'clean') None) (string 'clean')) (func (symbol 'revs') (list (symbol '0') (withstatus (func (symbol 'added') None) (string 'added'))))) b1 $ fileset -p optimized 'clean() & status(null, 0, b* & added())' * optimized: (and (withstatus (func (symbol 'clean') None) (string 'clean')) (func (symbol 'status') (list (symbol 'null') (symbol '0') (and (symbol 'b*') (withstatus (func (symbol 'added') None) (string 'added')))))) b1 Test files properties >>> open('bin', 'wb').write(b'\0a') and None $ fileset 'binary()' bin $ fileset 'binary() and unknown()' bin $ echo '^bin$' >> .hgignore $ fileset 'binary() and ignored()' bin $ hg add bin $ fileset 'binary()' bin $ fileset -p optimized -s 'binary() and b*' * optimized: (and (symbol 'b*') (func (symbol 'binary') None)) * matcher: <intersectionmatcher m1=<patternmatcher patterns='b[^/]*$'>, m2=<predicatenmatcher pred=binary>> bin $ fileset 'grep("b{1}")' .hgignore b1 b2 c1 $ fileset 'grep("missingparens(")' hg: parse error: invalid match pattern: (unbalanced parenthesis|missing \)).* (re) [255] #if execbit $ chmod +x b2 $ fileset 'exec()' b2 #endif #if symlink $ ln -s b2 b2link $ fileset 'symlink() and unknown()' b2link $ hg add b2link #endif #if no-windows $ echo foo > con.xml $ fileset 'not portable()' con.xml $ hg --config ui.portablefilenames=ignore add con.xml #endif >>> open('1k', 'wb').write(b' '*1024) and None >>> open('2k', 'wb').write(b' '*2048) and None $ hg add 1k 2k $ fileset 'size("bar")' hg: parse error: couldn't parse size: bar [255] $ fileset '(1k, 2k)' hg: parse error: can't use a list in this context (see 'hg help "filesets.x or y"') [255] $ fileset 'size(1k)' 1k $ fileset '(1k or 2k) and size("< 2k")' 1k $ fileset '(1k or 2k) and size("<=2k")' 1k 2k $ fileset '(1k or 2k) and size("> 1k")' 2k $ fileset '(1k or 2k) and size(">=1K")' 1k 2k $ fileset '(1k or 2k) and size(".5KB - 1.5kB")' 1k $ fileset 'size("1M")' $ fileset 'size("1 GB")' Test merge states $ hg ci -m manychanges $ hg file -r . 'set:copied() & modified()' [1] $ hg up -C 0 * files updated, 0 files merged, * files removed, 0 files unresolved (glob) $ echo c >> b2 $ hg ci -m diverging b2 created new head $ fileset 'resolved()' $ fileset 'unresolved()' $ hg merge merging b2 warning: conflicts while merging b2! (edit, then use 'hg resolve --mark') * files updated, 0 files merged, 1 files removed, 1 files unresolved (glob) use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon [1] $ fileset 'resolved()' $ fileset 'unresolved()' b2 $ echo e > b2 $ hg resolve -m b2 (no more unresolved files) $ fileset 'resolved()' b2 $ fileset 'unresolved()' $ hg ci -m merge Test subrepo predicate $ hg init sub $ echo a > sub/suba $ hg -R sub add sub/suba $ hg -R sub ci -m sub $ echo 'sub = sub' > .hgsub $ hg init sub2 $ echo b > sub2/b $ hg -R sub2 ci -Am sub2 adding b $ echo 'sub2 = sub2' >> .hgsub $ fileset 'subrepo()' $ hg add .hgsub $ fileset 'subrepo()' sub sub2 $ fileset 'subrepo("sub")' sub $ fileset 'subrepo("glob:*")' sub sub2 $ hg ci -m subrepo Test that .hgsubstate is updated as appropriate during a conversion. The saverev property is enough to alter the hashes of the subrepo. $ hg init ../converted $ hg --config extensions.convert= convert --config convert.hg.saverev=True \ > sub ../converted/sub initializing destination ../converted/sub repository scanning source... sorting... converting... 0 sub $ hg clone -U sub2 ../converted/sub2 $ hg --config extensions.convert= convert --config convert.hg.saverev=True \ > . ../converted scanning source... sorting... converting... 4 addfiles 3 manychanges 2 diverging 1 merge 0 subrepo no ".hgsubstate" updates will be made for "sub2" $ hg up -q -R ../converted -r tip $ hg --cwd ../converted cat sub/suba sub2/b -r tip a b $ oldnode=`hg log -r tip -T "{node}\n"` $ newnode=`hg log -R ../converted -r tip -T "{node}\n"` $ [ "$oldnode" != "$newnode" ] || echo "nothing changed" Test with a revision $ hg log -G --template '{rev} {desc}\n' @ 4 subrepo | o 3 merge |\ | o 2 diverging | | o | 1 manychanges |/ o 0 addfiles $ echo unknown > unknown $ fileset -r1 'modified()' b2 $ fileset -r1 'added() and c1' c1 $ fileset -r1 'removed()' a2 $ fileset -r1 'deleted()' $ fileset -r1 'unknown()' $ fileset -r1 'ignored()' $ fileset -r1 'hgignore()' .hgignore a2 b2 bin c2 sub2 $ fileset -r1 'binary()' bin $ fileset -r1 'size(1k)' 1k $ fileset -r3 'resolved()' $ fileset -r3 'unresolved()' #if execbit $ fileset -r1 'exec()' b2 #endif #if symlink $ fileset -r1 'symlink()' b2link #endif #if no-windows $ fileset -r1 'not portable()' con.xml $ hg forget 'con.xml' #endif $ fileset -r4 'subrepo("re:su.*")' sub sub2 $ fileset -r4 'subrepo(re:su.*)' sub sub2 $ fileset -r4 'subrepo("sub")' sub $ fileset -r4 'b2 or c1' b2 c1 >>> open('dos', 'wb').write(b"dos\r\n") and None >>> open('mixed', 'wb').write(b"dos\r\nunix\n") and None >>> open('mac', 'wb').write(b"mac\r") and None $ hg add dos mixed mac (remove a1, to examine safety of 'eol' on removed files) $ rm a1 $ fileset 'eol(dos)' dos mixed $ fileset 'eol(unix)' .hgignore .hgsub .hgsubstate b1 b2 b2.orig c1 c2 c3 con.xml (no-windows !) mixed unknown $ fileset 'eol(mac)' mac Test safety of 'encoding' on removed files $ fileset 'encoding("ascii")' .hgignore .hgsub .hgsubstate 1k 2k b1 b2 b2.orig b2link (symlink !) bin c1 c2 c3 con.xml (no-windows !) dos mac mixed unknown Test 'revs(...)' ================ small reminder of the repository state $ hg log -G @ changeset: 4:* (glob) | tag: tip | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: subrepo | o changeset: 3:* (glob) |\ parent: 2:55b05bdebf36 | | parent: 1:* (glob) | | user: test | | date: Thu Jan 01 00:00:00 1970 +0000 | | summary: merge | | | o changeset: 2:55b05bdebf36 | | parent: 0:8a9576c51c1f | | user: test | | date: Thu Jan 01 00:00:00 1970 +0000 | | summary: diverging | | o | changeset: 1:* (glob) |/ user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: manychanges | o changeset: 0:8a9576c51c1f user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: addfiles $ hg status --change 0 A a1 A a2 A b1 A b2 $ hg status --change 1 M b2 A 1k A 2k A b2link (no-windows !) A bin A c1 A con.xml (no-windows !) R a2 $ hg status --change 2 M b2 $ hg status --change 3 M b2 A 1k A 2k A b2link (no-windows !) A bin A c1 A con.xml (no-windows !) R a2 $ hg status --change 4 A .hgsub A .hgsubstate $ hg status A dos A mac A mixed R con.xml (no-windows !) ! a1 ? b2.orig ? c3 ? unknown Test files at -r0 should be filtered by files at wdir ----------------------------------------------------- $ fileset -r0 'tracked() and revs("wdir()", tracked())' a1 b1 b2 Test that "revs()" work at all ------------------------------ $ fileset "revs('2', modified())" b2 Test that "revs()" work for file missing in the working copy/current context ---------------------------------------------------------------------------- (a2 not in working copy) $ fileset "revs('0', added())" a1 a2 b1 b2 (none of the file exist in "0") $ fileset -r 0 "revs('4', added())" .hgsub .hgsubstate Call with empty revset -------------------------- $ fileset "revs('2-2', modified())" Call with revset matching multiple revs --------------------------------------- $ fileset "revs('0+4', added())" .hgsub .hgsubstate a1 a2 b1 b2 overlapping set $ fileset "revs('1+2', modified())" b2 test 'status(...)' ================= Simple case ----------- $ fileset "status(3, 4, added())" .hgsub .hgsubstate use rev to restrict matched file ----------------------------------------- $ hg status --removed --rev 0 --rev 1 R a2 $ fileset "status(0, 1, removed())" a2 $ fileset "tracked() and status(0, 1, removed())" $ fileset -r 4 "status(0, 1, removed())" a2 $ fileset -r 4 "tracked() and status(0, 1, removed())" $ fileset "revs('4', tracked() and status(0, 1, removed()))" $ fileset "revs('0', tracked() and status(0, 1, removed()))" a2 check wdir() ------------ $ hg status --removed --rev 4 R con.xml (no-windows !) $ fileset "status(4, 'wdir()', removed())" con.xml (no-windows !) $ hg status --removed --rev 2 R a2 $ fileset "status('2', 'wdir()', removed())" a2 test backward status -------------------- $ hg status --removed --rev 0 --rev 4 R a2 $ hg status --added --rev 4 --rev 0 A a2 $ fileset "status(4, 0, added())" a2 test cross branch status ------------------------ $ hg status --added --rev 1 --rev 2 A a2 $ fileset "status(1, 2, added())" a2 test with multi revs revset --------------------------- $ hg status --added --rev 0:1 --rev 3:4 A .hgsub A .hgsubstate A 1k A 2k A b2link (no-windows !) A bin A c1 A con.xml (no-windows !) $ fileset "status('0:1', '3:4', added())" .hgsub .hgsubstate 1k 2k b2link (no-windows !) bin c1 con.xml (no-windows !) tests with empty value ---------------------- Fully empty revset $ fileset "status('', '4', added())" hg: parse error: first argument to status must be a revision [255] $ fileset "status('2', '', added())" hg: parse error: second argument to status must be a revision [255] Empty revset will error at the revset layer $ fileset "status(' ', '4', added())" hg: parse error at 1: not a prefix: end ( ^ here) [255] $ fileset "status('2', ' ', added())" hg: parse error at 1: not a prefix: end ( ^ here) [255]