bdiff: normalize the diff (
issue1295)
When the common part of a diff can be moved forward, move it forward.
Otherwise we don't get deterministic results (it would depends on the way we
split for the recursion).
That way we get identical hunks when doing the same change, it helps to solve
issue1295 (inconsistent diffs on different side during a merge).
#!/bin/sh
# adjust to non-default HGPORT, e.g. with run-tests.py -j
hideport() { sed "s/localhost:$HGPORT/localhost:20059/"; }
hidehash() { sed "s/changeset 3:............ merges/changeset 3:... merges/"; }
echo "[extensions]" >> $HGRCPATH
echo "fetch=" >> $HGRCPATH
echo % test fetch with default branches only
hg init a
echo a > a/a
hg --cwd a commit -d '1 0' -Ama
hg clone a b
hg clone a c
echo b > a/b
hg --cwd a commit -d '2 0' -Amb
hg --cwd a parents -q
echo % should pull one change
hg --cwd b fetch ../a
hg --cwd b parents -q
echo c > c/c
hg --cwd c commit -d '3 0' -Amc
hg clone c d
hg clone c e
# 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.
echo % should merge c into a
hg --cwd c fetch -d '4 0' -m 'automated merge' ../a
ls c
hg --cwd a serve -a localhost -p $HGPORT -d --pid-file=hg.pid
cat a/hg.pid >> "$DAEMON_PIDS"
echo '% fetch over http, no auth'
hg --cwd d fetch -d '5 0' http://localhost:$HGPORT/ | hideport | hidehash
hg --cwd d tip --template '{desc}\n' | hideport
echo '% fetch over http with auth (should be hidden in desc)'
hg --cwd e fetch -d '5 0' http://user:password@localhost:$HGPORT/ | hideport | hidehash
hg --cwd e tip --template '{desc}\n' | hideport
hg clone a f
hg clone a g
echo f > f/f
hg --cwd f ci -d '6 0' -Amf
echo g > g/g
hg --cwd g ci -d '6 0' -Amg
hg clone -q f h
hg clone -q g i
echo % should merge f into g
hg --cwd g fetch -d '7 0' --switch -m 'automated merge' ../f
rm i/g
echo % should abort, because i is modified
hg --cwd i fetch ../h
echo % test fetch with named branches
hg init nbase
echo base > nbase/a
hg -R nbase ci -d '1 0' -Am base
hg -R nbase branch a
echo a > nbase/a
hg -R nbase ci -d '2 0' -m a
hg -R nbase up -C 0
hg -R nbase branch b
echo b > nbase/b
hg -R nbase ci -Ad '3 0' -m b
echo
echo % pull in change on foreign branch
hg clone nbase n1
hg clone nbase n2
hg -R n1 up -C a
echo aa > n1/a
hg -R n1 ci -d '4 0' -m a1
hg -R n2 up -C b
hg -R n2 fetch -d '9 0' -m 'merge' n1
echo '% parent should be 2 (no automatic update)'
hg -R n2 parents --template '{rev}\n'
rm -fr n1 n2
echo
echo % pull in changes on both foreign and local branches
hg clone nbase n1
hg clone nbase n2
hg -R n1 up -C a
echo aa > n1/a
hg -R n1 ci -d '4 0' -m a1
hg -R n1 up -C b
echo bb > n1/b
hg -R n1 ci -d '5 0' -m b1
hg -R n2 up -C b
hg -R n2 fetch -d '9 0' -m 'merge' n1
echo '% parent should be 4 (fast forward)'
hg -R n2 parents --template '{rev}\n'
rm -fr n1 n2
echo
echo '% pull changes on foreign (2 new heads) and local (1 new head) branches'
echo % with a local change
hg clone nbase n1
hg clone nbase n2
hg -R n1 up -C a
echo a1 > n1/a
hg -R n1 ci -d '4 0' -m a1
hg -R n1 up -C b
echo bb > n1/b
hg -R n1 ci -d '5 0' -m b1
hg -R n1 up -C 1
echo a2 > n1/a
hg -R n1 ci -d '6 0' -m a2
hg -R n2 up -C b
echo change >> n2/c
hg -R n2 ci -Ad '7 0' -m local
hg -R n2 fetch -d '9 0' -m 'merge' n1
echo '% parent should be 7 (new merge changeset)'
hg -R n2 parents --template '{rev}\n'
rm -fr n1 n2
echo '% pull in changes on foreign (merge of local branch) and local (2 new'
echo '% heads) with a local change'
hg clone nbase n1
hg clone nbase n2
hg -R n1 up -C a
hg -R n1 merge b
hg -R n1 ci -d '4 0' -m merge
hg -R n1 up -C 2
echo c > n1/a
hg -R n1 ci -d '5 0' -m c
hg -R n1 up -C 2
echo cc > n1/a
hg -R n1 ci -d '6 0' -m cc
hg -R n2 up -C b
echo change >> n2/b
hg -R n2 ci -Ad '7 0' -m local
hg -R n2 fetch -d '9 0' -m 'merge' n1
echo '% parent should be 3 (fetch did not merge anything)'
hg -R n2 parents --template '{rev}\n'
rm -fr n1 n2
echo % pull in change on different branch than dirstate
hg init n1
echo a > n1/a
hg -R n1 ci -Am initial
hg clone n1 n2
echo b > n1/a
hg -R n1 ci -m next
hg -R n2 branch topic
hg -R n2 fetch -d '0 0' -m merge n1
echo '% parent should be 0 (fetch did not update or merge anything)'
hg -R n2 parents --template '{rev}\n'
rm -fr n1 n2
true