#!/bin/sh
#
# Copyright (c) 2012 Felipe Contreras
#
# Base commands from hg-git tests:
# https://bitbucket.org/durin42/hg-git/src
#

test_description='Test biridectionality of remote-hg'

. ./test-lib.sh

if ! test_have_prereq PYTHON; then
        skip_all='skipping remote-hg tests; python not available'
        test_done
fi

if ! "$PYTHON_PATH" -c 'import mercurial'; then
        skip_all='skipping remote-hg tests; mercurial not available'
        test_done
fi

# clone to a git repo
git_clone () {
        hg -R $1 bookmark -f -r tip master &&
        git clone -q "hg::$PWD/$1" $2
}

# clone to an hg repo
hg_clone () {
        (
        hg init $2 &&
        cd $1 &&
        git push -q "hg::$PWD/../$2" 'refs/tags/*:refs/tags/*' 'refs/heads/*:refs/heads/*'
        ) &&

        (cd $2 && hg -q update)
}

# push an hg repo
hg_push () {
        (
        cd $2
        old=$(git symbolic-ref --short HEAD)
        git checkout -q -b tmp &&
        git fetch -q "hg::$PWD/../$1" 'refs/tags/*:refs/tags/*' 'refs/heads/*:refs/heads/*' &&
        git checkout -q $old &&
        git branch -q -D tmp 2> /dev/null || true
        )
}

hg_log () {
        hg -R $1 log --graph --debug | grep -v 'tag: *default/'
}

setup () {
        (
        echo "[ui]"
        echo "username = A U Thor <author@example.com>"
        echo "[defaults]"
        echo "backout = -d \"0 0\""
        echo "commit = -d \"0 0\""
        echo "debugrawcommit = -d \"0 0\""
        echo "tag = -d \"0 0\""
        ) >> "$HOME"/.hgrc &&
        git config --global remote-hg.hg-git-compat true

        export HGEDITOR=/usr/bin/true

        export GIT_AUTHOR_DATE="2007-01-01 00:00:00 +0230"
        export GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
}

setup

test_expect_success 'encoding' '
        mkdir -p tmp && cd tmp &&
        test_when_finished "cd .. && rm -rf tmp" &&

        (
        git init -q gitrepo &&
        cd gitrepo &&

        echo alpha > alpha &&
        git add alpha &&
        git commit -m "add älphà" &&

        export GIT_AUTHOR_NAME="tést èncödîng" &&
        echo beta > beta &&
        git add beta &&
        git commit -m "add beta" &&

        echo gamma > gamma &&
        git add gamma &&
        git commit -m "add gämmâ" &&

        : TODO git config i18n.commitencoding latin-1 &&
        echo delta > delta &&
        git add delta &&
        git commit -m "add déltà"
        ) &&

        hg_clone gitrepo hgrepo &&
        git_clone hgrepo gitrepo2 &&
        hg_clone gitrepo2 hgrepo2 &&

        HGENCODING=utf-8 hg_log hgrepo > expected &&
        HGENCODING=utf-8 hg_log hgrepo2 > actual &&

        test_cmp expected actual
'

test_expect_success 'file removal' '
        mkdir -p tmp && cd tmp &&
        test_when_finished "cd .. && rm -rf tmp" &&

        (
        git init -q gitrepo &&
        cd gitrepo &&
        echo alpha > alpha &&
        git add alpha &&
        git commit -m "add alpha" &&
        echo beta > beta &&
        git add beta &&
        git commit -m "add beta"
        mkdir foo &&
        echo blah > foo/bar &&
        git add foo &&
        git commit -m "add foo" &&
        git rm alpha &&
        git commit -m "remove alpha" &&
        git rm foo/bar &&
        git commit -m "remove foo/bar"
        ) &&

        hg_clone gitrepo hgrepo &&
        git_clone hgrepo gitrepo2 &&
        hg_clone gitrepo2 hgrepo2 &&

        hg_log hgrepo > expected &&
        hg_log hgrepo2 > actual &&

        test_cmp expected actual
'

test_expect_success 'git tags' '
        mkdir -p tmp && cd tmp &&
        test_when_finished "cd .. && rm -rf tmp" &&

        (
        git init -q gitrepo &&
        cd gitrepo &&
        git config receive.denyCurrentBranch ignore &&
        echo alpha > alpha &&
        git add alpha &&
        git commit -m "add alpha" &&
        git tag alpha &&

        echo beta > beta &&
        git add beta &&
        git commit -m "add beta" &&
        git tag -a -m "added tag beta" beta
        ) &&

        hg_clone gitrepo hgrepo &&
        git_clone hgrepo gitrepo2 &&
        hg_clone gitrepo2 hgrepo2 &&

        hg_log hgrepo > expected &&
        hg_log hgrepo2 > actual &&

        test_cmp expected actual
'

test_expect_success 'hg branch' '
        mkdir -p tmp && cd tmp &&
        test_when_finished "cd .. && rm -rf tmp" &&

        (
        git init -q gitrepo &&
        cd gitrepo &&

        echo alpha > alpha &&
        git add alpha &&
        git commit -q -m "add alpha" &&
        git checkout -q -b not-master
        ) &&

        (
        hg_clone gitrepo hgrepo &&

        cd hgrepo &&
        hg -q co master &&
        hg mv alpha beta &&
        hg -q commit -m "rename alpha to beta" &&
        hg branch gamma | grep -v "permanent and global" &&
        hg -q commit -m "started branch gamma"
        ) &&

        hg_push hgrepo gitrepo &&
        hg_clone gitrepo hgrepo2 &&

        : TODO, avoid "master" bookmark &&
        (cd hgrepo2 && hg checkout gamma) &&

        hg_log hgrepo > expected &&
        hg_log hgrepo2 > actual &&

        test_cmp expected actual
'

test_expect_success 'hg tags' '
        mkdir -p tmp && cd tmp &&
        test_when_finished "cd .. && rm -rf tmp" &&

        (
        git init -q gitrepo &&
        cd gitrepo &&

        echo alpha > alpha &&
        git add alpha &&
        git commit -m "add alpha" &&
        git checkout -q -b not-master
        ) &&

        (
        hg_clone gitrepo hgrepo &&

        cd hgrepo &&
        hg co master &&
        hg tag alpha
        ) &&

        hg_push hgrepo gitrepo &&
        hg_clone gitrepo hgrepo2 &&

        hg_log hgrepo > expected &&
        hg_log hgrepo2 > actual &&

        test_cmp expected actual
'

test_done