Mercurial > hg
view tests/test-branches.t @ 42621:99ebde4fec99
commit: improve the files field of changelog for merges
Currently, the files list of merge commits repeats all the deletions
(either actual deletions, or files that got renamed) that happened
between base and p2 of the merge. If p2 is the main branch, the list
can easily be much bigger than the change being merged.
This results in various problems worth improving:
- changelog is bigger than necessary
- `hg log directory` lists many unrelated merge commits, and `hg log
-v -r commit` frequently fills multiple screens worth of files
- it possibly slows down adjustlinkrev, by forcing it to read more
manifests, and that function can certainly be a bottleneck
- the server side of pulls can waste a lot of time simply opening the
filelogs for pointless files (the constant factors for opening even
a tiny filelog is apparently pretty bad)
So stop listing such files as described in the code. Impacted merge
commits and their descendants get a different hash than they would
have without this. This doesn't seem problematic, except for
convert. The previous commit helped with that in the hg->hg case (but
if you do svn->hg twice from scratch, hashes can still change).
The rest of the description is numbers. I don't have much to report,
because recreating the files list of existing repositories is not
easy:
- debugupgradeformat and bundle/unbundle don't recreate the list
- export/import tends to choke quickly applying patches or on
description that contain diffs,
- merge commits from the convert extension don't have the right files
list for reasons orthogonal to the current commit
- replaying the merge with hg update/hg merge/hg revert --all/hg
commit can end up failing in hg revert
- I wasn't sure that using debugsetparents + debugrebuilddirstate
would really build the right thing
I measured commit time before and after this change, in a case with no
files filtered out, several files filtered out (no difference) and 5k
files filtered out (+1% time).
Recreating the 100 more recent merges in a private repo, the
concatenated uncompressed files lists goes from 1.12MB to
0.52MB. Excluding 3 merges that are not representative, then the size
goes from 570k to 15k.
I converted part of mozilla-central, and observed file list shrinking
quite a bit too, starting at the very first merge, 733641d9feaf, going
from 550 files to 10 files (although they have relatively few merges,
so they probably wouldn't care).
Differential Revision: https://phab.mercurial-scm.org/D6613
author | Valentin Gatien-Baron <valentin.gatienbaron@gmail.com> |
---|---|
date | Tue, 02 Jul 2019 12:59:58 -0400 |
parents | 2e1d9414ff71 |
children | 8d72e29ad1e0 |
line wrap: on
line source
$ 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: current revision is already a branch closing head [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 .. Test to make sure that `--close-branch` only works on a branch head: -------------------------------------------------------------------- $ hg init closebranch $ cd closebranch $ for ch in a b c; do > echo $ch > $ch > hg add $ch > hg ci -m "added "$ch > done; $ hg up -r "desc('added b')" 0 files updated, 0 files merged, 1 files removed, 0 files unresolved trying to close branch from a cset which is not a branch head it should abort: $ hg ci -m "closing branch" --close-branch abort: can only close branch heads (use --force-close-branch to close branch from a non-head changeset) [255] $ hg up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg log -GT "{rev}: {node|short} {desc|firstline}\n\t{branch}\n\n" o 2: 155349b645be added c | default | o 1: 5f6d8a4bf34a added b | default | @ 0: 9092f1db7931 added a default Test --force-close-branch to close a branch from a non-head changeset: --------------------------------------------------------------------- $ hg show stack --config extensions.show= o 1553 added c o 5f6d added b @ 9092 added a $ hg ci -m "branch closed" --close-branch abort: can only close branch heads (use --force-close-branch to close branch from a non-head changeset) [255] $ hg ci -m "branch closed" --force-close-branch created new head