tests/test-newbranch

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

branchcache=.hg/branch.cache

hg init t
cd t
hg branches

echo foo > a
hg add a
hg ci -m "initial" -d "1000000 0"
hg branch foo
hg branch
hg ci -m "add branch name" -d "1000000 0"
hg branch bar
hg ci -m "change branch name" -d "1000000 0"
echo % branch shadowing
hg branch default
hg branch -f default
hg ci -m "clear branch name" -d "1000000 0"

hg co foo
hg branch
echo bleah > a
hg ci -m "modify a branch" -d "1000000 0"

hg merge default
hg branch
hg ci -m "merge" -d "1000000 0"
hg log

hg branches
hg branches -q

echo % test for invalid branch cache
hg rollback
cp $branchcache .hg/bc-invalid
hg log -r foo
cp .hg/bc-invalid $branchcache
hg --debug log -r foo
rm $branchcache
echo corrupted > $branchcache
hg log -qr foo
cat $branchcache

echo % push should update the branch cache
hg init ../target
echo % pushing just rev 0
hg push -qr 0 ../target
cat ../target/$branchcache
echo % pushing everything
hg push -qf ../target
cat ../target/$branchcache

echo % update with no arguments: tipmost revision of the current branch
hg up -q -C 0
hg up -q
hg id
hg up -q 1
hg up -q
hg id
hg branch foobar
hg up

echo % fastforward merge
hg branch ff
echo ff > ff
hg ci -Am'fast forward' -d '1000000 0'
hg up foo
hg merge ff
hg branch
hg commit -m'Merge ff into foo' -d '1000000 0'
hg parents
hg manifest

echo % test merging, add 3 default heads and one test head
cd ..
hg init merges
cd merges
echo a > a
hg ci -Ama

echo b > b
hg ci -Amb

hg up 0
echo c > c
hg ci -Amc

hg up 0
echo d > d
hg ci -Amd

hg up 0
hg branch test
echo e >> e
hg ci -Ame

hg log

echo % implicit merge with test branch as parent
hg merge
hg up -C default
echo % implicit merge with default branch as parent
hg merge
echo % 3 branch heads, explicit merge required
hg merge 2
hg ci -m merge
echo % 2 branch heads, implicit merge works
hg merge