revlog: improve delta generation heuristics for generaldelta
Without this change, pulls (and clones) into a generaldelta repository could
generate very inefficient revlogs, the size of which could be at least twice
the original size.
This was caused by the generated delta chains covering too large distances,
causing new chains to be built far too often. This change addresses the
problem by forcing a delta against second parent or against the previous
revision, when the first parent delta is in danger of creating a long chain.
adjust to non-default HGPORT, e.g. with run-tests.py -j
$ echo "[extensions]" >> $HGRCPATH
$ echo "fetch=" >> $HGRCPATH
test fetch with default branches only
$ hg init a
$ echo a > a/a
$ hg --cwd a commit -d '1 0' -Ama
adding a
$ hg clone a b
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone a c
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo b > a/b
$ hg --cwd a commit -d '2 0' -Amb
adding b
$ hg --cwd a parents -q
1:97d72e5f12c7
should pull one change
$ hg --cwd b fetch ../a
pulling from ../a
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg --cwd b parents -q
1:97d72e5f12c7
$ echo c > c/c
$ hg --cwd c commit -d '3 0' -Amc
adding c
$ hg clone c d
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone c e
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
We cannot use the default commit message if fetching from a local
repo, because the path of the repo will be included in the commit
message, making every commit appear different.
should merge c into a
$ hg --cwd c fetch -d '4 0' -m 'automated merge' ../a
pulling from ../a
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
updating to 2:97d72e5f12c7
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
merging with 1:5e056962225c
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
new changeset 3:cd3a41621cf0 merges remote changes with local
$ ls c
a
b
c
$ netstat -tnap 2>/dev/null | grep $HGPORT | grep LISTEN
[1]
$ hg --cwd a serve -a localhost -p $HGPORT -d --pid-file=hg.pid
$ cat a/hg.pid >> "$DAEMON_PIDS"
fetch over http, no auth
$ hg --cwd d fetch -d '5 0' http://localhost:$HGPORT/
pulling from http://localhost:$HGPORT/
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
updating to 2:97d72e5f12c7
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
merging with 1:5e056962225c
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
new changeset 3:* merges remote changes with local (glob)
$ hg --cwd d tip --template '{desc}\n'
Automated merge with http://localhost:$HGPORT/
fetch over http with auth (should be hidden in desc)
$ hg --cwd e fetch -d '5 0' http://user:password@localhost:$HGPORT/
pulling from http://user:***@localhost:$HGPORT/
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
updating to 2:97d72e5f12c7
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
merging with 1:5e056962225c
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
new changeset 3:* merges remote changes with local (glob)
$ hg --cwd e tip --template '{desc}\n'
Automated merge with http://localhost:$HGPORT/
$ hg clone a f
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone a g
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo f > f/f
$ hg --cwd f ci -d '6 0' -Amf
adding f
$ echo g > g/g
$ hg --cwd g ci -d '6 0' -Amg
adding g
$ hg clone -q f h
$ hg clone -q g i
should merge f into g
$ hg --cwd g fetch -d '7 0' --switch -m 'automated merge' ../f
pulling from ../f
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
merging with 3:cc6a3744834d
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
new changeset 4:55aa4f32ec59 merges remote changes with local
$ rm i/g
should abort, because i is modified
$ hg --cwd i fetch ../h
abort: working directory is missing some files
[255]
test fetch with named branches
$ hg init nbase
$ echo base > nbase/a
$ hg -R nbase ci -d '1 0' -Am base
adding a
$ hg -R nbase branch a
marked working directory as branch a
$ echo a > nbase/a
$ hg -R nbase ci -d '2 0' -m a
$ hg -R nbase up -C 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R nbase branch b
marked working directory as branch b
$ echo b > nbase/b
$ hg -R nbase ci -Ad '3 0' -m b
adding b
$ echo
pull in change on foreign branch
$ hg clone nbase n1
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone nbase n2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R n1 up -C a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo aa > n1/a
$ hg -R n1 ci -d '4 0' -m a1
$ hg -R n2 up -C b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R n2 fetch -d '9 0' -m 'merge' n1
pulling from n1
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
parent should be 2 (no automatic update)
$ hg -R n2 parents --template '{rev}\n'
2
$ rm -fr n1 n2
$ echo
pull in changes on both foreign and local branches
$ hg clone nbase n1
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone nbase n2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R n1 up -C a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo aa > n1/a
$ hg -R n1 ci -d '4 0' -m a1
$ hg -R n1 up -C b
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo bb > n1/b
$ hg -R n1 ci -d '5 0' -m b1
$ hg -R n2 up -C b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R n2 fetch -d '9 0' -m 'merge' n1
pulling from n1
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
parent should be 4 (fast forward)
$ hg -R n2 parents --template '{rev}\n'
4
$ rm -fr n1 n2
$ echo
pull changes on foreign (2 new heads) and local (1 new head) branches
with a local change
$ hg clone nbase n1
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone nbase n2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R n1 up -C a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo a1 > n1/a
$ hg -R n1 ci -d '4 0' -m a1
$ hg -R n1 up -C b
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo bb > n1/b
$ hg -R n1 ci -d '5 0' -m b1
$ hg -R n1 up -C 1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo a2 > n1/a
$ hg -R n1 ci -d '6 0' -m a2
created new head
$ hg -R n2 up -C b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo change >> n2/c
$ hg -R n2 ci -Ad '7 0' -m local
adding c
$ hg -R n2 fetch -d '9 0' -m 'merge' n1
pulling from n1
searching for changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 2 files (+2 heads)
updating to 5:708c6cce3d26
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
merging with 3:d83427717b1f
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
new changeset 7:48f1a33f52af merges remote changes with local
parent should be 7 (new merge changeset)
$ hg -R n2 parents --template '{rev}\n'
7
$ rm -fr n1 n2
pull in changes on foreign (merge of local branch) and local (2 new
heads) with a local change
$ hg clone nbase n1
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone nbase n2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R n1 up -C a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R n1 merge b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg -R n1 ci -d '4 0' -m merge
$ hg -R n1 up -C 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo c > n1/a
$ hg -R n1 ci -d '5 0' -m c
$ hg -R n1 up -C 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo cc > n1/a
$ hg -R n1 ci -d '6 0' -m cc
created new head
$ hg -R n2 up -C b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo change >> n2/b
$ hg -R n2 ci -Ad '7 0' -m local
$ hg -R n2 fetch -d '9 0' -m 'merge' n1
pulling from n1
searching for changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 2 changes to 1 files (+2 heads)
not merging with 1 other new branch heads (use "hg heads ." and "hg merge" to merge them)
[1]
parent should be 3 (fetch did not merge anything)
$ hg -R n2 parents --template '{rev}\n'
3
$ rm -fr n1 n2
pull in change on different branch than dirstate
$ hg init n1
$ echo a > n1/a
$ hg -R n1 ci -Am initial
adding a
$ hg clone n1 n2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo b > n1/a
$ hg -R n1 ci -m next
$ hg -R n2 branch topic
marked working directory as branch topic
$ hg -R n2 fetch -d '0 0' -m merge n1
abort: working dir not at branch tip (use "hg update" to check out branch tip)
[255]
parent should be 0 (fetch did not update or merge anything)
$ hg -R n2 parents --template '{rev}\n'
0
$ rm -fr n1 n2
test fetch with inactive branches
$ hg init ib1
$ echo a > ib1/a
$ hg --cwd ib1 ci -Am base
adding a
$ hg --cwd ib1 branch second
marked working directory as branch second
$ echo b > ib1/b
$ hg --cwd ib1 ci -Am onsecond
adding b
$ hg --cwd ib1 branch -f default
marked working directory as branch default
$ echo c > ib1/c
$ hg --cwd ib1 ci -Am newdefault
adding c
created new head
$ hg clone ib1 ib2
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
fetch should succeed
$ hg --cwd ib2 fetch ../ib1
pulling from ../ib1
searching for changes
no changes found
$ rm -fr ib1 ib2
test issue1726
$ hg init i1726r1
$ echo a > i1726r1/a
$ hg --cwd i1726r1 ci -Am base
adding a
$ hg clone i1726r1 i1726r2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo b > i1726r1/a
$ hg --cwd i1726r1 ci -m second
$ echo c > i1726r2/a
$ hg --cwd i1726r2 ci -m third
$ HGMERGE=true hg --cwd i1726r2 fetch ../i1726r1
pulling from ../i1726r1
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
updating to 2:7837755a2789
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
merging with 1:d1f0c6c48ebd
merging a
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
new changeset 3:* merges remote changes with local (glob)
$ hg --cwd i1726r2 heads default --template '{rev}\n'
3
$ echo
test issue2047
$ hg -q init i2047a
$ cd i2047a
$ echo a > a
$ hg -q ci -Am a
$ hg -q branch stable
$ echo b > b
$ hg -q ci -Am b
$ cd ..
$ hg -q clone -r 0 i2047a i2047b
$ cd i2047b
$ hg fetch ../i2047a
pulling from ../i2047a
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
$ "$TESTDIR/killdaemons.py"