simple bash script for Archlinux AUR search/download

rua.sh

#!/bin/bash

BUILD_DIR="$HOME/build"
SEARCH_URL="https://aur.archlinux.org/rpc.php?type=search"
GIT_URL="https://aur.archlinux.org"

error()
{
	echo $1
	exit
}

search()
{
	# require 'jq'
	wget -qO - "${SEARCH_URL}&arg=$@" \
	| jq '.results[]' \
	| awk '
	function split_and_gsub(str) {
		split(str, a, ": ");
		gsub(/",/, "", a[2]);
		gsub(/"/, "", a[2]);

		return a[2];
	}
	/"Description":/ {
		desc = split_and_gsub($0);
	}
	/"Version":/ {
		gsub(/,/, "", $0);
		vers = split_and_gsub($0);
	}
	/"Name":/ {
		name = split_and_gsub($0);
	}
	/^}/ {
		printf "aur/" name " " vers "\n    " desc "\n"
	}'
}

download()
{
	cd $BUILD_DIR || error "build directory not found"

	for i in "$@"; do
		git clone $GIT_URL/$i.git || error "download failed"
	done
}

usage()
{
	echo "usage: rua [-s|-d] package"
	echo "-s: search"
	echo "-d: download"
}

case $1 in
"-s")
	shift
	search $@;;
"-d")
	shift
	download $@;;
*)
	usage;;
esac