Mercurial > hg-stable
view tests/test-branches.t @ 22778:80f2b63dd83a
parsers: add a function to efficiently lowercase ASCII strings
We need a way to efficiently lowercase ASCII strings. For example, 'hg status'
needs to build up the fold map -- a map from a canonical case (for OS X,
lowercase) to the actual case of each file and directory in the dirstate.
The current way we do that is to try decoding to ASCII and then calling
lower() on the string, labeled 'orig' below:
str.decode('ascii')
return str.lower()
This is pretty inefficient, and it turns out we can do much better.
I also tested out a condition-based approach, labeled 'cond' below:
(c >= 'A' && c <= 'Z') ? (c + ('a' - 'A')) : c
'cond' turned out to be slower in all cases. A 256-byte lookup table with
invalid values for everything past 127 performed similarly, but this was less
verbose.
On OS X 10.9 with LLVM version 6.0 (clang-600.0.51), the asciilower function
was run against two corpuses.
Corpus 1 (list of files from real-world repo, > 100k files):
orig: wall 0.428567 comb 0.430000 user 0.430000 sys 0.000000 (best of 24)
cond: wall 0.077204 comb 0.070000 user 0.070000 sys 0.000000 (best of 100)
lookup: wall 0.060714 comb 0.060000 user 0.060000 sys 0.000000 (best of 100)
Corpus 2 (mozilla-central, 113k files):
orig: wall 0.238406 comb 0.240000 user 0.240000 sys 0.000000 (best of 42)
cond: wall 0.040779 comb 0.040000 user 0.040000 sys 0.000000 (best of 100)
lookup: wall 0.037623 comb 0.040000 user 0.040000 sys 0.000000 (best of 100)
On a Linux server-class machine with GCC 4.4.6 20120305 (Red Hat 4.4.6-4):
Corpus 1 (real-world repo, > 100k files):
orig: wall 0.260899 comb 0.260000 user 0.260000 sys 0.000000 (best of 38)
cond: wall 0.054818 comb 0.060000 user 0.060000 sys 0.000000 (best of 100)
lookup: wall 0.048489 comb 0.050000 user 0.050000 sys 0.000000 (best of 100)
Corpus 2 (mozilla-central, 113k files):
orig: wall 0.153082 comb 0.150000 user 0.150000 sys 0.000000 (best of 65)
cond: wall 0.031007 comb 0.040000 user 0.040000 sys 0.000000 (best of 100)
lookup: wall 0.028793 comb 0.030000 user 0.030000 sys 0.000000 (best of 100)
SSE instructions might help even more, but I didn't experiment with those.
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Fri, 03 Oct 2014 18:42:39 -0700 |
parents | d4869b280cd6 |
children | e955549cd045 |
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$ hg init a $ cd a $ echo 'root' >root $ hg add root $ hg commit -d '0 0' -m "Adding root node" $ echo 'a' >a $ hg add a $ hg branch a marked working directory as branch a (branches are permanent and global, did you want a bookmark?) $ hg commit -d '1 0' -m "Adding a branch" $ hg branch q marked working directory as branch q (branches are permanent and global, did you want a bookmark?) $ echo 'aa' >a $ hg branch -C reset working directory to branch a $ hg commit -d '2 0' -m "Adding to a branch" $ hg update -C 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo 'b' >b $ hg add b $ hg branch b marked working directory as branch b (branches are permanent and global, did you want a bookmark?) $ hg commit -d '2 0' -m "Adding b branch" $ echo 'bh1' >bh1 $ hg add bh1 $ hg commit -d '3 0' -m "Adding b branch head 1" $ hg update -C 2 1 files updated, 0 files merged, 2 files removed, 0 files unresolved $ echo 'bh2' >bh2 $ hg add bh2 $ hg commit -d '4 0' -m "Adding b branch head 2" $ echo 'c' >c $ hg add c $ hg branch c marked working directory as branch c (branches are permanent and global, did you want a bookmark?) $ hg commit -d '5 0' -m "Adding c branch" reserved names $ hg branch tip abort: the name 'tip' is reserved [255] $ hg branch null abort: the name 'null' is reserved [255] $ hg branch . abort: the name '.' is reserved [255] invalid characters $ hg branch 'foo:bar' abort: ':' cannot be used in a name [255] $ hg branch 'foo > bar' abort: '\n' cannot be used in a name [255] trailing or leading spaces should be stripped before testing duplicates $ hg branch 'b ' abort: a branch of the same name already exists (use 'hg update' to switch to it) [255] $ hg branch ' b' abort: a branch of the same name already exists (use 'hg update' to switch to it) [255] verify update will accept invalid legacy branch names $ hg init test-invalid-branch-name $ cd test-invalid-branch-name $ hg pull -u "$TESTDIR"/bundles/test-invalid-branch-name.hg pulling from *test-invalid-branch-name.hg (glob) requesting all changes adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 2 files 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg update '"colon:test"' 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd .. $ echo 'd' >d $ hg add d $ hg branch 'a branch name much longer than the default justification used by branches' marked working directory as branch a branch name much longer than the default justification used by branches (branches are permanent and global, did you want a bookmark?) $ hg commit -d '6 0' -m "Adding d branch" $ hg branches a branch name much longer than the default justification used by branches 7:10ff5895aa57 b 4:aee39cd168d0 c 6:589736a22561 (inactive) a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) ------- $ hg branches -a a branch name much longer than the default justification used by branches 7:10ff5895aa57 b 4:aee39cd168d0 --- Branch a $ hg log -b a changeset: 5:d8cbc61dbaa6 branch: a parent: 2:881fe2b92ad0 user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: Adding b branch head 2 changeset: 2:881fe2b92ad0 branch: a user: test date: Thu Jan 01 00:00:02 1970 +0000 summary: Adding to a branch changeset: 1:dd6b440dd85a branch: a user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: Adding a branch ---- Branch b $ hg log -b b changeset: 4:aee39cd168d0 branch: b user: test date: Thu Jan 01 00:00:03 1970 +0000 summary: Adding b branch head 1 changeset: 3:ac22033332d1 branch: b parent: 0:19709c5a4e75 user: test date: Thu Jan 01 00:00:02 1970 +0000 summary: Adding b branch ---- going to test branch closing $ hg branches a branch name much longer than the default justification used by branches 7:10ff5895aa57 b 4:aee39cd168d0 c 6:589736a22561 (inactive) a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) $ hg up -C b 2 files updated, 0 files merged, 4 files removed, 0 files unresolved $ echo 'xxx1' >> b $ hg commit -d '7 0' -m 'adding cset to branch b' $ hg up -C aee39cd168d0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo 'xxx2' >> b $ hg commit -d '8 0' -m 'adding head to branch b' created new head $ echo 'xxx3' >> b $ hg commit -d '9 0' -m 'adding another cset to branch b' $ hg branches b 10:bfbe841b666e a branch name much longer than the default justification used by branches 7:10ff5895aa57 c 6:589736a22561 (inactive) a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) $ hg heads --closed changeset: 10:bfbe841b666e branch: b tag: tip user: test date: Thu Jan 01 00:00:09 1970 +0000 summary: adding another cset to branch b changeset: 8:eebb944467c9 branch: b parent: 4:aee39cd168d0 user: test date: Thu Jan 01 00:00:07 1970 +0000 summary: adding cset to branch b changeset: 7:10ff5895aa57 branch: a branch name much longer than the default justification used by branches user: test date: Thu Jan 01 00:00:06 1970 +0000 summary: Adding d branch changeset: 6:589736a22561 branch: c user: test date: Thu Jan 01 00:00:05 1970 +0000 summary: Adding c branch changeset: 5:d8cbc61dbaa6 branch: a parent: 2:881fe2b92ad0 user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: Adding b branch head 2 changeset: 0:19709c5a4e75 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: Adding root node $ hg heads changeset: 10:bfbe841b666e branch: b tag: tip user: test date: Thu Jan 01 00:00:09 1970 +0000 summary: adding another cset to branch b changeset: 8:eebb944467c9 branch: b parent: 4:aee39cd168d0 user: test date: Thu Jan 01 00:00:07 1970 +0000 summary: adding cset to branch b changeset: 7:10ff5895aa57 branch: a branch name much longer than the default justification used by branches user: test date: Thu Jan 01 00:00:06 1970 +0000 summary: Adding d branch changeset: 6:589736a22561 branch: c user: test date: Thu Jan 01 00:00:05 1970 +0000 summary: Adding c branch changeset: 5:d8cbc61dbaa6 branch: a parent: 2:881fe2b92ad0 user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: Adding b branch head 2 changeset: 0:19709c5a4e75 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: Adding root node $ hg commit -d '9 0' --close-branch -m 'prune bad branch' $ hg branches -a b 8:eebb944467c9 a branch name much longer than the default justification used by branches 7:10ff5895aa57 $ hg up -C b 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg commit -d '9 0' --close-branch -m 'close this part branch too' $ hg commit -d '9 0' --close-branch -m 're-closing this branch' abort: can only close branch heads [255] $ hg log -r tip --debug changeset: 12:e3d49c0575d8fc2cb1cd6859c747c14f5f6d499f branch: b tag: tip phase: draft parent: 8:eebb944467c9fb9651ed232aeaf31b3c0a7fc6c1 parent: -1:0000000000000000000000000000000000000000 manifest: 8:6f9ed32d2b310e391a4f107d5f0f071df785bfee user: test date: Thu Jan 01 00:00:09 1970 +0000 extra: branch=b extra: close=1 description: close this part branch too --- b branch should be inactive $ hg branches a branch name much longer than the default justification used by branches 7:10ff5895aa57 c 6:589736a22561 (inactive) a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) $ hg branches -c a branch name much longer than the default justification used by branches 7:10ff5895aa57 b 12:e3d49c0575d8 (closed) c 6:589736a22561 (inactive) a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) $ hg branches -a a branch name much longer than the default justification used by branches 7:10ff5895aa57 $ hg branches -q a branch name much longer than the default justification used by branches c a default $ hg heads b no open branch heads found on branches b [1] $ hg heads --closed b changeset: 12:e3d49c0575d8 branch: b tag: tip parent: 8:eebb944467c9 user: test date: Thu Jan 01 00:00:09 1970 +0000 summary: close this part branch too changeset: 11:d3f163457ebf branch: b user: test date: Thu Jan 01 00:00:09 1970 +0000 summary: prune bad branch $ echo 'xxx4' >> b $ hg commit -d '9 0' -m 'reopen branch with a change' reopening closed branch head 12 --- branch b is back in action $ hg branches -a b 13:e23b5505d1ad a branch name much longer than the default justification used by branches 7:10ff5895aa57 ---- test heads listings $ hg heads changeset: 13:e23b5505d1ad branch: b tag: tip user: test date: Thu Jan 01 00:00:09 1970 +0000 summary: reopen branch with a change changeset: 7:10ff5895aa57 branch: a branch name much longer than the default justification used by branches user: test date: Thu Jan 01 00:00:06 1970 +0000 summary: Adding d branch changeset: 6:589736a22561 branch: c user: test date: Thu Jan 01 00:00:05 1970 +0000 summary: Adding c branch changeset: 5:d8cbc61dbaa6 branch: a parent: 2:881fe2b92ad0 user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: Adding b branch head 2 changeset: 0:19709c5a4e75 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: Adding root node branch default $ hg heads default changeset: 0:19709c5a4e75 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: Adding root node branch a $ hg heads a changeset: 5:d8cbc61dbaa6 branch: a parent: 2:881fe2b92ad0 user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: Adding b branch head 2 $ hg heads --active a no open branch heads found on branches a [1] branch b $ hg heads b changeset: 13:e23b5505d1ad branch: b tag: tip user: test date: Thu Jan 01 00:00:09 1970 +0000 summary: reopen branch with a change $ hg heads --closed b changeset: 13:e23b5505d1ad branch: b tag: tip user: test date: Thu Jan 01 00:00:09 1970 +0000 summary: reopen branch with a change changeset: 11:d3f163457ebf branch: b user: test date: Thu Jan 01 00:00:09 1970 +0000 summary: prune bad branch default branch colors: $ echo "[extensions]" >> $HGRCPATH $ echo "color =" >> $HGRCPATH $ echo "[color]" >> $HGRCPATH $ echo "mode = ansi" >> $HGRCPATH $ hg up -C c 3 files updated, 0 files merged, 2 files removed, 0 files unresolved $ hg commit -d '9 0' --close-branch -m 'reclosing this branch' $ hg up -C b 2 files updated, 0 files merged, 3 files removed, 0 files unresolved $ hg branches --color=always \x1b[0;32mb\x1b[0m\x1b[0;33m 13:e23b5505d1ad\x1b[0m (esc) \x1b[0;0ma branch name much longer than the default justification used by branches\x1b[0m\x1b[0;33m 7:10ff5895aa57\x1b[0m (esc) \x1b[0;0ma\x1b[0m\x1b[0;33m 5:d8cbc61dbaa6\x1b[0m (inactive) (esc) \x1b[0;0mdefault\x1b[0m\x1b[0;33m 0:19709c5a4e75\x1b[0m (inactive) (esc) default closed branch color: $ hg branches --color=always --closed \x1b[0;32mb\x1b[0m\x1b[0;33m 13:e23b5505d1ad\x1b[0m (esc) \x1b[0;0ma branch name much longer than the default justification used by branches\x1b[0m\x1b[0;33m 7:10ff5895aa57\x1b[0m (esc) \x1b[0;30;1mc\x1b[0m\x1b[0;33m 14:f894c25619d3\x1b[0m (closed) (esc) \x1b[0;0ma\x1b[0m\x1b[0;33m 5:d8cbc61dbaa6\x1b[0m (inactive) (esc) \x1b[0;0mdefault\x1b[0m\x1b[0;33m 0:19709c5a4e75\x1b[0m (inactive) (esc) $ echo "[extensions]" >> $HGRCPATH $ echo "color =" >> $HGRCPATH $ echo "[color]" >> $HGRCPATH $ echo "branches.active = green" >> $HGRCPATH $ echo "branches.closed = blue" >> $HGRCPATH $ echo "branches.current = red" >> $HGRCPATH $ echo "branches.inactive = magenta" >> $HGRCPATH $ echo "log.changeset = cyan" >> $HGRCPATH custom branch colors: $ hg branches --color=always \x1b[0;31mb\x1b[0m\x1b[0;36m 13:e23b5505d1ad\x1b[0m (esc) \x1b[0;32ma branch name much longer than the default justification used by branches\x1b[0m\x1b[0;36m 7:10ff5895aa57\x1b[0m (esc) \x1b[0;35ma\x1b[0m\x1b[0;36m 5:d8cbc61dbaa6\x1b[0m (inactive) (esc) \x1b[0;35mdefault\x1b[0m\x1b[0;36m 0:19709c5a4e75\x1b[0m (inactive) (esc) custom closed branch color: $ hg branches --color=always --closed \x1b[0;31mb\x1b[0m\x1b[0;36m 13:e23b5505d1ad\x1b[0m (esc) \x1b[0;32ma branch name much longer than the default justification used by branches\x1b[0m\x1b[0;36m 7:10ff5895aa57\x1b[0m (esc) \x1b[0;34mc\x1b[0m\x1b[0;36m 14:f894c25619d3\x1b[0m (closed) (esc) \x1b[0;35ma\x1b[0m\x1b[0;36m 5:d8cbc61dbaa6\x1b[0m (inactive) (esc) \x1b[0;35mdefault\x1b[0m\x1b[0;36m 0:19709c5a4e75\x1b[0m (inactive) (esc) template output: $ hg branches -Tjson --closed [ { "active": true, "branch": "b", "closed": false, "current": true, "node": "e23b5505d1ad24aab6f84fd8c7cb8cd8e5e93be0", "rev": 13 }, { "active": true, "branch": "a branch name much longer than the default justification used by branches", "closed": false, "current": false, "node": "10ff5895aa5793bd378da574af8cec8ea408d831", "rev": 7 }, { "active": false, "branch": "c", "closed": true, "current": false, "node": "f894c25619d3f1484639d81be950e0a07bc6f1f6", "rev": 14 }, { "active": false, "branch": "a", "closed": false, "current": false, "node": "d8cbc61dbaa6dc817175d1e301eecb863f280832", "rev": 5 }, { "active": false, "branch": "default", "closed": false, "current": false, "node": "19709c5a4e75bf938f8e349aff97438539bb729e", "rev": 0 } ] $ cd ..