Script to update AUR packages through cower.

cowerupdate

#!/usr/bin/env bash
#
#   cowerupdate
#
# Script to update AUR packages installed through cower.
#
# Copyright 2013-2015, iceTwy
# Licensed under the WTFPLv2 (http://www.wtfpl.net/about/)

cower_updatesearch_cmd="cower -u"
cower_update_cmd="cower -uddf"
makepkg_cmd="makepkg -ci --check"
cower_conf_file="$XDG_CONFIG_HOME/cower/config"
cower_conf_file_fallback="$HOME/.config/cower/config"

if [ ! -f $cower_conf_file ] && [ ! -f $cower_conf_file_fallback ]; then
	echo No cower configuration file was found.
	echo Falling back to current directory 
	cower_dl_dir="."
else
	if [ ! -f $cower_conf_file ]; then
	$cower_conf_file = $cower_conf_file_fallback
	fi
	cower_dl_dir=$( cat $cower_conf_file | grep 'TargetDir' )
	if [[ $cower_dl_dir == *'#'* ]]; then
		echo TargetDir commented out in $cower_dl_dir
		echo Falling back to current directory
		cower_dl_dir="."
	else
		cower_dl_dir=$( cat $cower_conf_file | grep 'TargetDir' | awk '{ print $3 }' )
		echo cower DL directory: $cower_dl_dir
	fi
fi

echo Packages to update:
$cower_updatesearch_cmd
if [ $? == 0 ]; then
	echo No packages to update.
	exit 0
else
	error=0
	$cower_update_cmd
	for package in $( $cower_updatesearch_cmd | awk '{ print $2 }'); do
		cd $cower_dl_dir/$package
		if [ ! -f PKGBUILD ]; then
			echo No PKGBUILD found in $package
		else
			echo Found PKGBUILD in $package
			echo Building and installing...
			$makepkg_cmd
			if [ $? == 0 ]; then
				echo Built and installed.
			else
				echo There was an error when running makepkg.
				(( error++ ))
			fi
		fi
	done
	if [ error == 0 ]; then
		echo All packages have been built and installed.
		exit 0
	else
		echo makepkg reported $error errors!
		exit 1
	fi
fi

A little note; be careful with this script if you have no default download directory set in the cower config file (i.e. missing TargetDir). PKGBUILDs will be downloaded to the current directory.

The default behaviour is to retrieve the updates then to build and install the packages.

Hey thanks! This fits my needs nicely. I'm having problems with variable $cower_dl_dir/ in line 44 however. When I run the script it turns up blank (a scoping issue?) and so the script tries to cd in $HOME (I think) rather than my "Builds" folder.

I've hard-coded the correct path to my "Builds" folder at that point (in place of the variable) and the script works as expected. I have set my TargetDir in cower's config.