Searh package from AUR and update if needed

search_aur_update.sh

#!/bin/sh

AUR_URL="https://aur.archlinux.org"

echo search aur package

# list all package explicitly installed
for package in `pacman -Qe|sed -e "s/\([^\ ]*\)\ .*/\1/"`; do
	
	# search for package with "Unknown Packager" (because install from makepgk not correctly setup)
	if [[ `pacman -Qi $package|grep "Unknown Packager"` == *"Unknown Packager" ]]; then
		
		# get the current version installed
		version_cur=`pacman -Q $package|cut -d" " -f2`

		# get the AUR version and url
		package_info=`curl -s "$AUR_URL/rpc.php?type=info&arg=$package"`
		version_new=`echo $package_info|sed -e "s/.*\"Version\":\"\([^\"]*\)\".*/\1/"`
		package_url=`echo $package_info|sed -e "s/.*\"URLPath\":\"\([^\"]*\)\".*/\1/"|sed -e "s,\\\\\\,,g"`

		printf "found %s (%s)\t%s\t%s\n" $package $package_url $version_cur $version_new

		# if version differ, then ask for installation
		if [[ $version_cur != $version_new ]];then
			read -p "Update $package from $version_cur to $version_new ?(y/n)"
			echo
			if [[ $REPLY =~ ^[Yy]$ ]]; then

				echo do update $package
				# get the tar.gz from AUR
				curl $AUR_URL$package_url -o $package.tar.gz

				# unzip
				tar zxvf $package.tar.gz

				# makepkg -s
				cd $package
				makepkg -s
				sudo pacman -U $package*

				# delete the tar.gz
				cd ..
				rm -r $package
				rm $package.tar.gz
			fi
		fi
	fi
done