#!/bin/bash

# Heavily hacked build/release script for MicroWorld
# Expects to be run from the parent directory of the directory which contains all
# the MicroWorld projects.

# WARNING: The regexps in this are fair awfy bruckle. Edit with care.

# Simon Broooke <simon@jasmine.org.uk>

release=""

case $1 in
	build) 
		# 'build' is the expected normal case.
		;; 
	release) 
		# release is branch a release and upversion to new label
		release=$2;
		if [ "${release}" = "" ]
		then
			echo "Release flagged, but no release tag supplied" 1>&2;
			exit 1;
		fi;;
	*)
		echo "Usage:" 1>&2;
		echo "  ${0} build             Build all components and commit to master" 1>&2;
		echo "  ${0} release [LABEL]   Build all components, branch for release on " 1>&2;
		echo "        old label, then upversion to new LABEL and commit to master" 1>&2;
		exit 1;;
esac

for dir in mw-*
do
	pushd ${dir}

	if [ "${release}" != "" ]
	then
		old=`cat project.clj | grep 'defproject mw' | sed 's/.*defproject mw-[a-z]* "\([A-Za-z0-9_.-]*\)".*/\1/'`
		message="Preparing ${old} for release"

		# Does the 'old' version tag end with the token "-SNAPSHOT"? it probably does!
		echo "${old}" | grep 'SNAPSHOT' 
		if [ $? -eq 0 ]
		then
			# It does... 
			interim=`echo ${old} | sed 's/\([A-Za-z0-9_.-]*\)-SNAPSHOT.*/\1/'`
			if [ "${interim}" = "" ]
			then
				echo "Failed to compute interim version tag from '${old}'" 1>&2
				exit 1;
			fi
			cat project.clj > project.bak.1
			sed "s/${old}/${interim}/" project.bak.1 > project.clj
			message="Upversioned from ${old} to ${interim} for release"
			old=${interim}
		fi
	fi

	echo $message

	lein clean
	lein compile
	if [ $? -ne 0 ]
	then
		echo "Sub-project ${dir} failed in compile" 1>&2
		exit 1
	fi

  lein test
	if [ $? -ne 0 ]
	then
		echo "Sub-project ${dir} failed in test" 1>&2
		exit 1
	fi

	lein marg
	lein install
	
	if [ "${message}" = "" ]
	then
		git commit -a
	else
		git commit -a -m "$message"
	fi
	git push origin master

	if [ "${release}" != "" ]
	then
		branch="${old}_MAINTENANCE"
		git branch "${branch}"
		# git push origin "${branch}"
		cat project.clj > project.bak.2
		sed "s/${interim}/${release}-SNAPSHOT/" project.bak.2 > project.clj
		message="Upversioned from ${interim} to ${release}-SNAPSHOT"

		echo $message

		lein clean
		lein compile
		if [ $? -ne 0 ]
		then
			echo "Sub-project ${dir} failed in compile after branch to ${release}!" 1>&2
			exit 1
		fi
		lein marg
		lein install
		git commit -a -m "${message}"
		echo ${message}
		git push origin master
	fi

	# Finally, if we're in the UI project, build the uberwar - and should probably deploy it
	# to local Tomcat for test
	if [ "${dir}" = "mw-ui" ]
  then
    lein ring uberwar
		sudo cp target/microworld.war /var/lib/tomcat7/webapps
		echo "Deployed new WAR file to local Tomcat"
  fi
	popd
done