Mercurial > hg
view tests/test-branches.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 | 4506f801e492 |
children | 258821f2d465 |
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$ hg init a $ cd a Verify checking branch of nullrev before the cache is created doesnt crash $ hg log -r 'branch(.)' -T '{branch}\n' Basic test $ 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 $ 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 $ 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 $ 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 unbundle -u "$TESTDIR"/bundles/test-invalid-branch-name.hg adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 2 files new changesets f0e4c7f04036:33c2ceb9310b (3 drafts) 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 $ 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 listing by rev $ hg branches -r0 default 0:19709c5a4e75 (inactive) $ hg branches -qr0 default --- now more than one rev $ hg branches -r2:5 b 4:aee39cd168d0 a 5:d8cbc61dbaa6 (inactive) $ hg branches -qr2:5 b a ---- 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 reclose branch $ 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 branches b 13:e23b5505d1ad a branch name much longer than the default justification used by branches 7:10ff5895aa57 a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) $ hg branches --closed b 13:e23b5505d1ad a branch name much longer than the default justification used by branches 7:10ff5895aa57 c 14:f894c25619d3 (closed) a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) multihead branch $ hg up -C default 0 files updated, 0 files merged, 3 files removed, 0 files unresolved $ hg branch m marked working directory as branch m $ touch m $ hg add m $ hg commit -d '10 0' -m 'multihead base' $ echo "m1" >m $ hg commit -d '10 0' -m 'head 1' $ hg up -C '.^' 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo "m2" >m $ hg commit -d '10 0' -m 'head 2' created new head $ hg log -b m changeset: 17:df343b0df04f branch: m tag: tip parent: 15:f3447637f53e user: test date: Thu Jan 01 00:00:10 1970 +0000 summary: head 2 changeset: 16:a58ca5d3bdf3 branch: m user: test date: Thu Jan 01 00:00:10 1970 +0000 summary: head 1 changeset: 15:f3447637f53e branch: m parent: 0:19709c5a4e75 user: test date: Thu Jan 01 00:00:10 1970 +0000 summary: multihead base $ hg heads --topo m changeset: 17:df343b0df04f branch: m tag: tip parent: 15:f3447637f53e user: test date: Thu Jan 01 00:00:10 1970 +0000 summary: head 2 changeset: 16:a58ca5d3bdf3 branch: m user: test date: Thu Jan 01 00:00:10 1970 +0000 summary: head 1 $ hg branches m 17:df343b0df04f b 13:e23b5505d1ad a branch name much longer than the default justification used by branches 7:10ff5895aa57 a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) partially merge multihead branch $ hg up -C default 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg branch md marked working directory as branch md $ hg merge m 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg commit -d '11 0' -m 'merge head 2' $ hg heads --topo m changeset: 16:a58ca5d3bdf3 branch: m user: test date: Thu Jan 01 00:00:10 1970 +0000 summary: head 1 $ hg branches md 18:c914c99f1fbb m 17:df343b0df04f b 13:e23b5505d1ad a branch name much longer than the default justification used by branches 7:10ff5895aa57 a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) partially close multihead branch $ hg up -C a58ca5d3bdf3 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg commit -d '12 0' -m 'close head 1' --close-branch $ hg heads --topo m changeset: 19:cd21a80baa3d branch: m tag: tip parent: 16:a58ca5d3bdf3 user: test date: Thu Jan 01 00:00:12 1970 +0000 summary: close head 1 $ hg branches md 18:c914c99f1fbb b 13:e23b5505d1ad a branch name much longer than the default justification used by branches 7:10ff5895aa57 m 17:df343b0df04f (inactive) a 5:d8cbc61dbaa6 (inactive) default 0:19709c5a4e75 (inactive) default branch colors: $ cat <<EOF >> $HGRCPATH > [extensions] > color = > [color] > mode = ansi > EOF $ hg up -C b 2 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg branches --color=always \x1b[0;0mmd\x1b[0m\x1b[0;33m 18:c914c99f1fbb\x1b[0m (esc) \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;0mm\x1b[0m\x1b[0;33m 17:df343b0df04f\x1b[0m (inactive) (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;0mmd\x1b[0m\x1b[0;33m 18:c914c99f1fbb\x1b[0m (esc) \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;0mm\x1b[0m\x1b[0;33m 17:df343b0df04f\x1b[0m (inactive) (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) $ cat <<EOF >> $HGRCPATH > [extensions] > color = > [color] > branches.active = green > branches.closed = blue > branches.current = red > branches.inactive = magenta > log.changeset = cyan > EOF custom branch colors: $ hg branches --color=always \x1b[0;32mmd\x1b[0m\x1b[0;36m 18:c914c99f1fbb\x1b[0m (esc) \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;35mm\x1b[0m\x1b[0;36m 17:df343b0df04f\x1b[0m (inactive) (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;32mmd\x1b[0m\x1b[0;36m 18:c914c99f1fbb\x1b[0m (esc) \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;35mm\x1b[0m\x1b[0;36m 17:df343b0df04f\x1b[0m (inactive) (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": "md", "closed": false, "current": false, "node": "c914c99f1fbb2b1d785a0a939ed3f67275df18e9", "rev": 18 }, { "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": "m", "closed": false, "current": false, "node": "df343b0df04feb2a946cd4b6e9520e552fef14ee", "rev": 17 }, { "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 } ] $ hg branches --closed -T '{if(closed, "{branch}\n")}' c $ hg branches -T '{word(0, branch)}: {desc|firstline}\n' md: merge head 2 b: reopen branch with a change a: Adding d branch m: head 2 a: Adding b branch head 2 default: Adding root node $ cat <<'EOF' > "$TESTTMP/map-myjson" > docheader = '\{\n' > docfooter = '\n}\n' > separator = ',\n' > branches = ' {dict(branch, node|short)|json}' > EOF $ hg branches -T "$TESTTMP/map-myjson" { {"branch": "md", "node": "c914c99f1fbb"}, {"branch": "b", "node": "e23b5505d1ad"}, {"branch": "a branch *", "node": "10ff5895aa57"}, (glob) {"branch": "m", "node": "df343b0df04f"}, {"branch": "a", "node": "d8cbc61dbaa6"}, {"branch": "default", "node": "19709c5a4e75"} } $ cat <<'EOF' >> .hg/hgrc > [templates] > myjson = ' {dict(branch, node|short)|json}' > myjson:docheader = '\{\n' > myjson:docfooter = '\n}\n' > myjson:separator = ',\n' > EOF $ hg branches -T myjson { {"branch": "md", "node": "c914c99f1fbb"}, {"branch": "b", "node": "e23b5505d1ad"}, {"branch": "a branch *", "node": "10ff5895aa57"}, (glob) {"branch": "m", "node": "df343b0df04f"}, {"branch": "a", "node": "d8cbc61dbaa6"}, {"branch": "default", "node": "19709c5a4e75"} } $ cat <<'EOF' >> .hg/hgrc > [templates] > :docheader = 'should not be selected as a docheader for literal templates\n' > EOF $ hg branches -T '{branch}\n' md b a branch name much longer than the default justification used by branches m a default Tests of revision branch name caching We rev branch cache is updated automatically. In these tests we use a trick to trigger rebuilds. We remove the branch head cache and run 'hg head' to cause a rebuild that also will populate the rev branch cache. revision branch cache is created when building the branch head cache $ rm -rf .hg/cache; hg head a -T '{rev}\n' 5 $ f --hexdump --size .hg/cache/rbc-* .hg/cache/rbc-names-v1: size=92 0000: 64 65 66 61 75 6c 74 00 61 00 62 00 63 00 61 20 |default.a.b.c.a | 0010: 62 72 61 6e 63 68 20 6e 61 6d 65 20 6d 75 63 68 |branch name much| 0020: 20 6c 6f 6e 67 65 72 20 74 68 61 6e 20 74 68 65 | longer than the| 0030: 20 64 65 66 61 75 6c 74 20 6a 75 73 74 69 66 69 | default justifi| 0040: 63 61 74 69 6f 6e 20 75 73 65 64 20 62 79 20 62 |cation used by b| 0050: 72 61 6e 63 68 65 73 00 6d 00 6d 64 |ranches.m.md| .hg/cache/rbc-revs-v1: size=160 0000: 19 70 9c 5a 00 00 00 00 dd 6b 44 0d 00 00 00 01 |.p.Z.....kD.....| 0010: 88 1f e2 b9 00 00 00 01 ac 22 03 33 00 00 00 02 |.........".3....| 0020: ae e3 9c d1 00 00 00 02 d8 cb c6 1d 00 00 00 01 |................| 0030: 58 97 36 a2 00 00 00 03 10 ff 58 95 00 00 00 04 |X.6.......X.....| 0040: ee bb 94 44 00 00 00 02 5f 40 61 bb 00 00 00 02 |...D...._@a.....| 0050: bf be 84 1b 00 00 00 02 d3 f1 63 45 80 00 00 02 |..........cE....| 0060: e3 d4 9c 05 80 00 00 02 e2 3b 55 05 00 00 00 02 |.........;U.....| 0070: f8 94 c2 56 80 00 00 03 f3 44 76 37 00 00 00 05 |...V.....Dv7....| 0080: a5 8c a5 d3 00 00 00 05 df 34 3b 0d 00 00 00 05 |.........4;.....| 0090: c9 14 c9 9f 00 00 00 06 cd 21 a8 0b 80 00 00 05 |.........!......| no errors when revbranchcache is not writable $ echo >> .hg/cache/rbc-revs-v1 $ mv .hg/cache/rbc-revs-v1 .hg/cache/rbc-revs-v1_ $ mkdir .hg/cache/rbc-revs-v1 $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' 5 $ rmdir .hg/cache/rbc-revs-v1 $ mv .hg/cache/rbc-revs-v1_ .hg/cache/rbc-revs-v1 no errors when wlock cannot be acquired #if unix-permissions $ mv .hg/cache/rbc-revs-v1 .hg/cache/rbc-revs-v1_ $ rm -f .hg/cache/branch* $ chmod 555 .hg $ hg head a -T '{rev}\n' 5 $ chmod 755 .hg $ mv .hg/cache/rbc-revs-v1_ .hg/cache/rbc-revs-v1 #endif recovery from invalid cache revs file with trailing data $ echo >> .hg/cache/rbc-revs-v1 $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug 5 truncating cache/rbc-revs-v1 to 160 $ f --size .hg/cache/rbc-revs* .hg/cache/rbc-revs-v1: size=160 recovery from invalid cache file with partial last record $ mv .hg/cache/rbc-revs-v1 . $ f -qDB 119 rbc-revs-v1 > .hg/cache/rbc-revs-v1 $ f --size .hg/cache/rbc-revs* .hg/cache/rbc-revs-v1: size=119 $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug 5 truncating cache/rbc-revs-v1 to 112 $ f --size .hg/cache/rbc-revs* .hg/cache/rbc-revs-v1: size=160 recovery from invalid cache file with missing record - no truncation $ mv .hg/cache/rbc-revs-v1 . $ f -qDB 112 rbc-revs-v1 > .hg/cache/rbc-revs-v1 $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug 5 $ f --size .hg/cache/rbc-revs* .hg/cache/rbc-revs-v1: size=160 recovery from invalid cache file with some bad records $ mv .hg/cache/rbc-revs-v1 . $ f -qDB 8 rbc-revs-v1 > .hg/cache/rbc-revs-v1 $ f --size .hg/cache/rbc-revs* .hg/cache/rbc-revs-v1: size=8 $ f -qDB 112 rbc-revs-v1 >> .hg/cache/rbc-revs-v1 $ f --size .hg/cache/rbc-revs* .hg/cache/rbc-revs-v1: size=120 $ hg log -r 'branch(.)' -T '{rev} ' --debug history modification detected - truncating revision branch cache to revision 13 history modification detected - truncating revision branch cache to revision 1 3 4 8 9 10 11 12 13 truncating cache/rbc-revs-v1 to 8 $ rm -f .hg/cache/branch* && hg head a -T '{rev}\n' --debug 5 truncating cache/rbc-revs-v1 to 104 $ f --size --hexdump --bytes=16 .hg/cache/rbc-revs* .hg/cache/rbc-revs-v1: size=160 0000: 19 70 9c 5a 00 00 00 00 dd 6b 44 0d 00 00 00 01 |.p.Z.....kD.....| cache is updated when committing $ hg branch i-will-regret-this marked working directory as branch i-will-regret-this $ hg ci -m regrets $ f --size .hg/cache/rbc-* .hg/cache/rbc-names-v1: size=111 .hg/cache/rbc-revs-v1: size=168 update after rollback - the cache will be correct but rbc-names will will still contain the branch name even though it no longer is used $ hg up -qr '.^' $ hg rollback -qf $ f --size --hexdump .hg/cache/rbc-* .hg/cache/rbc-names-v1: size=111 0000: 64 65 66 61 75 6c 74 00 61 00 62 00 63 00 61 20 |default.a.b.c.a | 0010: 62 72 61 6e 63 68 20 6e 61 6d 65 20 6d 75 63 68 |branch name much| 0020: 20 6c 6f 6e 67 65 72 20 74 68 61 6e 20 74 68 65 | longer than the| 0030: 20 64 65 66 61 75 6c 74 20 6a 75 73 74 69 66 69 | default justifi| 0040: 63 61 74 69 6f 6e 20 75 73 65 64 20 62 79 20 62 |cation used by b| 0050: 72 61 6e 63 68 65 73 00 6d 00 6d 64 00 69 2d 77 |ranches.m.md.i-w| 0060: 69 6c 6c 2d 72 65 67 72 65 74 2d 74 68 69 73 |ill-regret-this| .hg/cache/rbc-revs-v1: size=160 0000: 19 70 9c 5a 00 00 00 00 dd 6b 44 0d 00 00 00 01 |.p.Z.....kD.....| 0010: 88 1f e2 b9 00 00 00 01 ac 22 03 33 00 00 00 02 |.........".3....| 0020: ae e3 9c d1 00 00 00 02 d8 cb c6 1d 00 00 00 01 |................| 0030: 58 97 36 a2 00 00 00 03 10 ff 58 95 00 00 00 04 |X.6.......X.....| 0040: ee bb 94 44 00 00 00 02 5f 40 61 bb 00 00 00 02 |...D...._@a.....| 0050: bf be 84 1b 00 00 00 02 d3 f1 63 45 80 00 00 02 |..........cE....| 0060: e3 d4 9c 05 80 00 00 02 e2 3b 55 05 00 00 00 02 |.........;U.....| 0070: f8 94 c2 56 80 00 00 03 f3 44 76 37 00 00 00 05 |...V.....Dv7....| 0080: a5 8c a5 d3 00 00 00 05 df 34 3b 0d 00 00 00 05 |.........4;.....| 0090: c9 14 c9 9f 00 00 00 06 cd 21 a8 0b 80 00 00 05 |.........!......| cache is updated/truncated when stripping - it is thus very hard to get in a situation where the cache is out of sync and the hash check detects it $ hg --config extensions.strip= strip -r tip --nob $ f --size .hg/cache/rbc-revs* .hg/cache/rbc-revs-v1: size=152 cache is rebuilt when corruption is detected $ echo > .hg/cache/rbc-names-v1 $ hg log -r '5:&branch(.)' -T '{rev} ' --debug referenced branch names not found - rebuilding revision branch cache from scratch 8 9 10 11 12 13 truncating cache/rbc-revs-v1 to 40 $ f --size --hexdump .hg/cache/rbc-* .hg/cache/rbc-names-v1: size=84 0000: 62 00 61 00 63 00 61 20 62 72 61 6e 63 68 20 6e |b.a.c.a branch n| 0010: 61 6d 65 20 6d 75 63 68 20 6c 6f 6e 67 65 72 20 |ame much longer | 0020: 74 68 61 6e 20 74 68 65 20 64 65 66 61 75 6c 74 |than the default| 0030: 20 6a 75 73 74 69 66 69 63 61 74 69 6f 6e 20 75 | justification u| 0040: 73 65 64 20 62 79 20 62 72 61 6e 63 68 65 73 00 |sed by branches.| 0050: 6d 00 6d 64 |m.md| .hg/cache/rbc-revs-v1: size=152 0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0020: 00 00 00 00 00 00 00 00 d8 cb c6 1d 00 00 00 01 |................| 0030: 58 97 36 a2 00 00 00 02 10 ff 58 95 00 00 00 03 |X.6.......X.....| 0040: ee bb 94 44 00 00 00 00 5f 40 61 bb 00 00 00 00 |...D...._@a.....| 0050: bf be 84 1b 00 00 00 00 d3 f1 63 45 80 00 00 00 |..........cE....| 0060: e3 d4 9c 05 80 00 00 00 e2 3b 55 05 00 00 00 00 |.........;U.....| 0070: f8 94 c2 56 80 00 00 02 f3 44 76 37 00 00 00 04 |...V.....Dv7....| 0080: a5 8c a5 d3 00 00 00 04 df 34 3b 0d 00 00 00 04 |.........4;.....| 0090: c9 14 c9 9f 00 00 00 05 |........| Test that cache files are created and grows correctly: $ rm .hg/cache/rbc* $ hg log -r "5 & branch(5)" -T "{rev}\n" 5 $ f --size --hexdump .hg/cache/rbc-* .hg/cache/rbc-names-v1: size=1 0000: 61 |a| .hg/cache/rbc-revs-v1: size=152 0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0020: 00 00 00 00 00 00 00 00 d8 cb c6 1d 00 00 00 00 |................| 0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 0090: 00 00 00 00 00 00 00 00 |........| $ cd .. Test for multiple incorrect branch cache entries: $ hg init b $ cd b $ touch f $ hg ci -Aqmf $ echo >> f $ hg ci -Amf $ hg branch -q branch $ hg ci -Amf $ f --size --hexdump .hg/cache/rbc-* .hg/cache/rbc-names-v1: size=14 0000: 64 65 66 61 75 6c 74 00 62 72 61 6e 63 68 |default.branch| .hg/cache/rbc-revs-v1: size=24 0000: 66 e5 f5 aa 00 00 00 00 fa 4c 04 e5 00 00 00 00 |f........L......| 0010: 56 46 78 69 00 00 00 01 |VFxi....| $ : > .hg/cache/rbc-revs-v1 No superfluous rebuilding of cache: $ hg log -r "branch(null)&branch(branch)" --debug $ f --size --hexdump .hg/cache/rbc-* .hg/cache/rbc-names-v1: size=14 0000: 64 65 66 61 75 6c 74 00 62 72 61 6e 63 68 |default.branch| .hg/cache/rbc-revs-v1: size=24 0000: 66 e5 f5 aa 00 00 00 00 fa 4c 04 e5 00 00 00 00 |f........L......| 0010: 56 46 78 69 00 00 00 01 |VFxi....| $ cd ..