#!/bin/sh

HGMERGE=true; export HGMERGE

hg init basic

cd basic

echo '# should complain'

hg backout

hg backout -r 0 0

echo '# basic operation'

echo a > a

hg commit -d '0 0' -A -m a

echo b >> a

hg commit -d '1 0' -m b

hg backout -d '2 0' tip

cat a

echo '# file that was removed is recreated'

cd ..

hg init remove

cd remove

echo content > a

hg commit -d '0 0' -A -m a

hg rm a

hg commit -d '1 0' -m b

hg backout -d '2 0' --merge tip

cat a

echo '# backout of backout is as if nothing happened'

hg backout -d '3 0' --merge tip

cat a 2>/dev/null || echo cat: a: No such file or directory

echo '# across branch'

cd ..

hg init branch

cd branch

echo a > a

hg ci -Am0 -d '0 0'

echo b > b

hg ci -Am1 -d '0 0'

hg co -C 0

# should fail

hg backout -d '0 0' 1

echo c > c

hg ci -Am2 -d '0 0'

# should fail

hg backout -d '0 0' 1

echo '# backout with merge'

cd ..

hg init merge

cd merge

echo line 1 > a

echo line 2 >> a

hg commit -d '0 0' -A -m a

# remove line 1

echo line 2 > a

hg commit -d '1 0' -m b

echo line 3 >> a

hg commit -d '2 0' -m c

hg backout --merge -d '3 0' 1

hg commit -d '4 0' -m d

# check line 1 is back

cat a

echo '# backout should not back out subsequent changesets'

hg init onecs

cd onecs

echo 1 > a

hg commit -d '0 0' -A -m a

echo 2 >> a

hg commit -d '1 0' -m b

echo 1 > b

hg commit -d '2 0' -A -m c

hg backout -d '3 0' 1

hg locate b

hg update -C tip

hg locate b

cd ..

hg init m

cd m

echo a > a

hg commit -d '0 0' -A -m a

echo b > b

hg commit -d '1 0' -A -m b

echo c > c

hg commit -d '2 0' -A -m b

hg update 1

echo d > d

hg commit -d '3 0' -A -m c

hg merge 2

hg commit -d '4 0' -A -m d

echo '# backout of merge should fail'

hg backout 4

echo '# backout of merge with bad parent should fail'

hg backout --parent 0 4

echo '# backout of non-merge with parent should fail'

hg backout --parent 0 3

echo '# backout with valid parent should be ok'

hg backout -d '5 0' --parent 2 4

hg rollback

hg update -C

hg backout -d '6 0' --parent 3 4

cd ..

echo '# named branches'

hg init named_branches

cd named_branches

echo default > default

hg ci -d '0 0' -Am default

hg branch branch1

echo branch1 > file1

hg ci -d '1 0' -Am file1

hg branch branch2

echo branch2 > file2

hg ci -d '2 0' -Am file2

hg backout -d '3 0' -r 1 -m 'backout on branch1'

# XXX maybe backout shouldn't suggest a merge here as it is a different branch?

echo '% on branch2 with branch1 not merged, so file1 should still exist:'

hg id

hg st -A

echo '% on branch2 with branch1 merged, so file1 should be gone:'

hg merge

hg ci -d '4 0' -m 'merge backout of branch1'

hg id

hg st -A

echo '% on branch1, so no file1 and file2:'

hg co -C branch1

hg id

hg st -A

exit 0