GNOME utility: Install gnome-shell plugins from zip file commandline

gnome-plugin-install.sh

#!/bin/bash
# gnome-shell-install 
# Utility script to install gnome-shell plugin from zip

## Usage: 
# Copy this file to your .local/bin directory and chmod +x [filename]
# From the directory where your downloaded GNOME shell plugin zip is, run 
# gnome-plugin-install.sh [mypluginfilename.zip]

# License: 
# Free / Unlicensed. Use it how you want.
# Warning: This could break your machine or blow up your house. 
# Read it before using, and make sure the code is safe first. 
# By using this script, you agree that you bear 100% responsibility for any consequential results.

ARGV=$@

function usage() {
	echo "Usage: "
	echo "$0: [filename]"
	echo "Params:"
	echo "	filename:  Gnome shell extension zip file"
}

# Check args length
function checkargs() {
	if [[ $# -ne 1 ]]; then
		echo "Error: pass filename of zip as argument"
		usage
		exit 1
	fi
}

function get_filename() {
	checkargs $ARGV && echo "$ARGV" || exit 1 
}

function get_ext_name() {
	fname="$1"
	if [[ -z "$fname" ]] ; then
		echo "filename ${fname} not valid length"
	fi
	extname="$(unzip -c $fname metadata.json | grep uuid | cut -d \" -f4)"
	echo "$extname"
}

function file_exists(){
	[[ -f "$1" ]] && return 0 || return 1
	
}

function makedir(){
	if [[ ! -d "$1" ]] ; then
		printf "\ncreating dir $1"
		mkdir -p "$1"
		if [[ ! $? ]] ; then 
			echo "Create dir failed"
			exit 1
		fi
	else
		printf "dir exists"
	fi
}
	
function install_ext() {
	if [[ $# -ne 2 ]] ; then
		echo "Error: must pass filename and extname to install_ext"
		exit 1
	fi
	
	fname="$1"
	extname="$2"
	install_dir="$HOME/.local/share/gnome-shell/extensions/$extname"
	# echo -e "\nfilename: \t$fname"
	# echo -e "extname: \t$extname"
	echo -e "\nInstalling extension to $install_dir..."

	# Create install dir
	echo -e "\nCreate dir..."
	makedir "$install_dir"

	# Unzip
	echo -e "\nUnzipping..."
	unzip -q "$fname" -d "$install_dir" && echo "OK" || exit 1

	# Enable plugin
	echo -e "\nEnabling plugin..."
	gnome-shell-extension-tool -e "$extname"
	[[ $? ]] && echo "plugin installed successfully" || echo "Install failed"
}

function main() {
	echo -e "\n################### Installing gnome extension ################\n"
	filename="$(get_filename $ARGV)"
	extension_name="$(get_ext_name $filename)"
	install_ext "$filename" "$extension_name"
}


# Run
main

Script to install gnome-shell plugins from ZIP at commandline.

Tags:
GNOME, Gnome shell, linux, BASH, zip