Current state of my build D script

buildDMD.bat

"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\vcvarsall.bat" amd64 && msbuild dmd/src/dmd_msc_vs10.sln /t:Rebuild /p:Configuration=Release /p:Platform=x64 && exit

updateAll.sh

#! /bin/bash

MAKE=/F/D/dm/bin/make.exe
VCDIR="/C/Program Files (x86)/Microsoft Visual Studio 10.0/VC"
SDKDIR="/C/Program Files (x86)/Microsoft SDKs/Windows/v7.0A"
DMD_BUILT_PATH=dmd/src/vcbuild/x64/Release/dmd_msc.exe
INSTALL_BASE_PATH=/F/D/dmd3/windows
HEAD_REMOTE="head"

MESSAGES=""
RESET_DMD=0
RESET_DRUNTIME=0
RESET_PHOBOS=0
RESET_TOOLS=0

function halt_build() {
	if [ -z "$1" ]; then
		echo "ISE: halt_build: Exit message not provided!"
		exit 1
	fi
	
	echo "$1"
	exit 2
}

function add_error() {
	if [ -z "$1" ]; then
		echo "ISE: add_error: No error message provided!"
		exit 3
	fi
	
	MESSAGES= $MESSAGES + "\n" + "$1"
}

function update() {
	local stashed=1
	
	cd "$1"
	git fetch $HEAD_REMOTE
	
	if [ -n "$(echo "$(git stash)" | grep -e "No local changes to save")" ]; then
		stashed=0
	else
		echo "Stashed changes to $2"
	fi
	
	if [ $3 -eq 1 ]; then
		git reset --hard $HEAD_REMOTE/master
	else
		if [ -n "$(echo "$(git rebase $HEAD_REMOTE/master)" | grep -e "CONFLICT")" ]; then
			halt_build "Conflicts encountered when rebasing $2 to $HEAD_REMOTE/master."
		fi
	fi
	
	if [ $stashed -eq 1 ]; then
		git stash pop
	fi
	
	echo "Updated $2"
	cd ..
}

function copy_source() {
	rm -rf $INSTALL_BASE_PATH/../src/$1
	mkdir $INSTALL_BASE_PATH/../src/$1
	cp -r $1/* $INSTALL_BASE_PATH/../src/$1
	
	if [ "$1" == "druntime" ]; then
		mkdir $INSTALL_BASE_PATH/../src/$1/import
		cp -r $1/src/* $INSTALL_BASE_PATH/../src/$1/import
	fi
	
	echo "Copied source for $2"
}

function build_dmd_msvc64() {
	cmd /k ""buildDMD.bat"";

	if ! [ -f $DMD_BUILT_PATH ]; then
		halt_build "Building DMD failed... Not building druntime, phobos, or the tools."
	fi;

	cp $DMD_BUILT_PATH $INSTALL_BASE_PATH/bin/dmd.exe
}

function do_make() {
	local copiedFiles=()
	IFS=';' read -ra copiedFiles <<< "$3"
	
	cd "$1"
	$MAKE -F "$2" DMD="$INSTALL_BASE_PATH/bin/dmd.exe" VCDIR="$VCDIR" SDKDIR="$SDKDIR"
	
	for (( i = 0; i < ${#copiedFiles[@]}; i=i + 2 )); do
		local sourceFile="${copiedFiles[$i]}"
		local destinationFile="${copiedFiles[$i + 1]}"
		destinationFile="${destinationFile/\~/$sourceFile}"
		cp -f "$sourceFile" "$INSTALL_BASE_PATH/$destinationFile"
		echo "Copied $sourceFile to $INSTALL_BASE_PATH/$destinationFile"
	done
	cd ..
}

function clean() {
	cd "$1"
	$MAKE -F "$2" clean
	cd ..
}

update "dmd" "DMD" $RESET_DMD
update "druntime" "DRuntime" $RESET_DRUNTIME
update "phobos" "Phobos" $RESET_PHOBOS

copy_source "druntime" "DRuntime"
copy_source "phobos" "Phobos"

build_dmd_msvc64

# 64-bit libs
do_make "druntime" "win64.mak" "lib/druntime64.lib;lib64/druntime64.lib;lib/gcstub64.obj;lib64/gcstub64.obj"
do_make "phobos" "win64.mak" "phobos64.lib;lib64/~"

clean "druntime" "win64.mak"
clean "phobos" "win64.mak"

# 32-bit libs
do_make "druntime" "win32.mak" "lib/druntime.lib;~;lib/gcstub.obj;~"
do_make "phobos" "win32.mak" "phobos.lib;lib/~"

clean "druntime" "win32.mak"
clean "phobos" "win32.mak"

#cd tools
#git fetch origin
#git reset --hard origin/master
#cd ..

if [ -n "$MESSAGES" ]; then
	echo "$MESSAGES"
	exit 1
else
	echo "Build completed successfully."
	exit 0
fi