Script combining cower, makepkg and pacman for Arch Linux, to download packages from AUR

aur_install.sh

#!/bin/bash
# A simple script combinig cower, makepkg and pacman
# Usage: aur_install.sh package1 package2...
# <anupdhml@gmail.com>

# folder to store the done packages
builds_folder="$HOME/builds"
done_folder_name="BUILT/"
ignore_folder_name="IGNORE/"

quit_on_error () {	 
	ferr=$?;
	msg=$1
	if [ $ferr != 0 ]; then

		echo "."
		echo ". ### error $ferr: $msg"
		echo ". ### bye"
		echo "."

        [ -d "$builds_folder" ] && echo "Check $builds_folder for residues"

		exit $ferr;
	fi

}

##############################################################################

# If $builds_folder is not there, files will be processed in the current dir
[ -d "$builds_folder" ] && echo "$builds_folder exists, so working there..." &&
cd $builds_folder
echo ""

# process the (given) arguments with cower
if [ "$#" -ne 0 ]
then
    echo DOWNLOADING "$@" 
    cower -dd "$@"
    quit_on_error "Error downloading packages $@" 

    echo ""
    echo "------------------------------------------------------------"
fi


# make and install the packages based on cower's files (or the files that were already here)
for dir in $(ls -d */); do
    # don't touch the done and ignore folder
    [ "$dir" == "$done_folder_name" -o "$dir" == "$ignore_folder_name" ] && continue

    echo ""
    echo "ENTERING $dir..."
    cd "$dir"

    echo ""
    echo "MAKING PACKAGE..."
    echo ""
    makepkg -fs
    quit_on_error "Error making package for $dir" 

    echo ""
    echo "INSTALLING PACKAGE..."
    echo ""
    sudo pacman --noconfirm -U *.pkg.*xz
    quit_on_error "Error installing package for $dir" 

    cd ..
    mkdir -p "$done_folder_name"
    mv -v "$dir" "$done_folder_name"/

    echo ""
    echo "------------------------------------------------------------"
done

[ -d "$builds_folder" ] && echo "Check $builds_folder/$done_folder_name for built packages."

exit 0