build.sh

#!/bin/bash

# Run this script with Arch linux's pacman installed
# Requires arch-install-scripts squashfs-tools grub parallel

## build scripts to use, will be sourced in order and in parallel
buildscripts=('build-img.sh' 'build-squashed-root.sh' 'build-user-crypt-img.sh')

serial-build() {
## source build-scripts
for a in ${buildscripts[@]}; do
  . "build-scripts/$a"
done
}

parallel-build() {
## build-user-crypt-img.sh requires user input, hence it serial
"build-scripts/build-user-crypt-img.sh"
## run build.parallel
./build.parallel build-img.sh build-squashed-root.sh
}

# Check to see if dependencies are available
deps=('pacstrap' 'grub-install' 'mkfs.fat' 'kpartx' 'parallel' 'cryptsetup' 'mksquashfs' 'arch-chroot')
unset deperr
for a in ${deps[@]}; do
  which "$a" >/dev/null
  if [ $? != 0 ]; then
     deperr+=" $a"
  fi
done

if [ ! -z "$deperr" ]; then
   echo "Couldn't find $deperr"
   exit
fi

if [ "$1" == "-p" ]; then
   parallel-build
 else
   serial-build
fi

echo "Please read README on how to write baseOS.img to disk"