#!/bin/sh

HGMERGE=true; export HGMERGE

echo '[extensions]' >> $HGRCPATH

echo 'graphlog =' >> $HGRCPATH

echo 'convert =' >> $HGRCPATH

glog()

{

    hg glog --template '{rev} "{desc}" files: {files}\n' "$@"

}

hg init source

cd source

echo foo > foo

echo baz > baz

mkdir -p dir/subdir

echo dir/file >> dir/file

echo dir/file2 >> dir/file2

echo dir/subdir/file3 >> dir/subdir/file3

echo dir/subdir/file4 >> dir/subdir/file4

hg ci -d '0 0' -qAm '0: add foo baz dir/'

echo bar > bar

echo quux > quux

hg copy foo copied

hg ci -d '1 0' -qAm '1: add bar quux; copy foo to copied'

echo >> foo

hg ci -d '2 0' -m '2: change foo'

hg up -qC 1

echo >> bar

echo >> quux

hg ci -d '3 0' -m '3: change bar quux'

hg up -qC 2

hg merge -qr 3

echo >> bar

echo >> baz

hg ci -d '4 0' -m '4: first merge; change bar baz'

echo >> bar

echo 1 >> baz

echo >> quux

hg ci -d '5 0' -m '5: change bar baz quux'

hg up -qC 4

echo >> foo

echo 2 >> baz

hg ci -d '6 0' -m '6: change foo baz'

hg up -qC 5

hg merge -qr 6

echo >> bar

hg ci -d '7 0' -m '7: second merge; change bar'

echo >> foo

hg ci -m '8: change foo'

glog

echo '% final file versions in this repo:'

hg manifest --debug

hg debugrename copied

echo

cd ..

splitrepo()

{

    msg="$1"

    files="$2"

    opts=$3

    echo "% $files: $msg"

    prefix=`echo "$files" | sed -e 's/ /-/g'`

    fmap="$prefix.fmap"

    repo="$prefix.repo"

    for i in $files; do

	echo "include $i" >> "$fmap"

    done

    hg -q convert $opts --filemap "$fmap" --datesort source "$repo"

    hg up -q -R "$repo"

    glog -R "$repo"

    hg -R "$repo" manifest --debug

}

splitrepo 'skip unwanted merges; use 1st parent in 1st merge, 2nd in 2nd' foo

splitrepo 'merges are not merges anymore' bar

splitrepo '1st merge is not a merge anymore; 2nd still is' baz

splitrepo 'we add additional merges when they are interesting' 'foo quux'

splitrepo 'partial conversion' 'bar quux' '-r 3'

splitrepo 'complete the partial conversion' 'bar quux'

rm -r foo.repo

splitrepo 'partial conversion' 'foo' '-r 3'

splitrepo 'complete the partial conversion' 'foo'

splitrepo 'copied file; source not included in new repo' copied

hg --cwd copied.repo debugrename copied

splitrepo 'copied file; source included in new repo' 'foo copied'

hg --cwd foo-copied.repo debugrename copied

cat > renames.fmap <<EOF

include dir

exclude dir/file2

rename dir dir2

include foo

include copied

rename foo foo2

rename copied copied2

exclude dir/subdir

include dir/subdir/file3

EOF

hg -q convert --filemap renames.fmap --datesort source renames.repo

hg up -q -R renames.repo

glog -R renames.repo

hg -R renames.repo manifest --debug

hg --cwd renames.repo debugrename copied2

echo 'copied:'

hg --cwd source cat copied

echo 'copied2:'

hg --cwd renames.repo cat copied2