#!/usr/bin/env bash

HTTP=0
SSH_INIT='ssh git.keep "rm -fr /var/cache/git/testing.git; git --git-dir=/var/cache/git/testing.git --bare init"'
SSH_DEST=ssh://git.keep/var/cache/git/testing.git

announce() {
	set -o |grep xtrace |grep off 2>/dev/null >/dev/null
	SET=$?
	set +o xtrace
	echo "======================"
	echo $1
	echo "======================"
	if [ ${SET} -eq 1 ]; then
		set -o xtrace
	fi
}

update_git_svn() {
	announce "update git-upstream"
	(
		cd git-upstream
		git svn rebase
	)
	update_git_local
}

update_git_local() {
	announce "update git local"
	(
		cd git-local
		git pull
		if [ ${HTTP} -eq 1 ]; then
			git push --all ${SSH_DEST}
		fi
	)
}

update_git_users() {
	announce "update user git copies"
	(cd git-users/me && git pull)
	(cd git-users/you && git pull)
}

add_svn_file() {
	announce "adding $1 to svn upstream"
	(
		cd svn-upstream-checkout/trunk
		date >$1
		svn add $1
		svn ci -m "$2"
	)

	[ -d git-upstream ] && update_git_svn
	[ -d git-local ] && update_git_local
	[ -d git-users ] && update_git_users
}

add_git_file() {
	announce "adding $2 in git $1 and pushing"
	(
		cd git-users/$1
		date >$2
		git add .
		git commit -m "$3" --author "$1 <$1@hax0rs.spork.in>"
		git push
	)

	[ -d git-local ] && update_git_local
	[ -d git-users ] && update_git_users
}

##############
# START HERE #
##############

announce "about to start working in `pwd`; ok?"
read response
if [ "x"${response}"x" == "xyx" ]; then
	echo "continuing"
else
	echo "dying"
	exit 1
fi

set -o xtrace

announce "make svn upstream"
svnadmin create svn-upstream-source

announce "checkout svn upstream"
SVN=file://`pwd`/svn-upstream-source
svn co ${SVN} svn-upstream-checkout
(
	cd svn-upstream-checkout
	svn mkdir trunk branches tags
	svn ci -m 'Initial structure'
)
add_svn_file "FIRST" "It has begun!"

if [ ${HTTP} -eq 1 ]; then
	announce "make git http repo"
	${SSH_INIT}
fi

announce "make git upstream"
mkdir git-upstream
(
	cd git-upstream
	git svn init -t tags -b branches -T trunk ${SVN}
	git svn fetch
)

announce "make local git mirror"
git clone git-upstream git-local

update_git_svn
update_git_local

announce "make user git copies"
mkdir git-users
git clone git-local git-users/me
git clone git-local git-users/you

#####################
# SETUP IS COMPLETE #
#####################

add_svn_file "SECOND" "The second is this!"
add_git_file "me" "FROM-ME" "You need this file!"
add_svn_file "THIRD" "More, more, more"
add_git_file "you" "FROM-YOU" "Winner!"
add_git_file "me" "ANOTHER_ONE" "ZOMG!"
add_svn_file "FOURTH" "Yawn!"