Commit work

create-package.sh

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+#!/bin/sh
+# Author: TheElectronWill
+# This script downloads the latest version of Discord for linux, and creates a package with rpmbuild.
+
+rpm_dir=$PWD/RPMs
+
+desktop_model=$PWD/discord.desktop
+spec_file=$PWD/discord.spec
+
+work_dir=$PWD/work
+downloaded_dir=$work_dir/discord
+desktop_file=$work_dir/discord.desktop
+
+
+# Download the discord tar.gz archive and puts its name in the global variable archive_name.
+function download_discord {
+	echo 'Downloading discord canary for linux...'
+	wget -q --show-progress --content-disposition "https://discordapp.com/api/download/canary?platform=linux&format=tar.gz"
+	archive_name=$(ls *.tar.gz)
+}
+
+# Asks the user if he/she wants to remove the specified directory, and removes it if he wants to.
+function ask_remove_dir {
+	read -p "Do you want to remove the \"$1\" directory? [y/N]" answer
+	case $answer in
+		[Yy]* )
+			rm -r "$1"
+			echo "\"$1\" directory removed."		
+			;;
+		* ) echo "Ok, I won't remove it." ;;
+	esac
+}
+
+# If the specified directory exists, asks the user if he/she wants to remove it.
+# If it doesn't exist, creates it.
+function manage_dir {
+	if [ -d "$1" ]; then
+		echo "The $2 directory already exist. It may contain outdated things."
+		ask_remove_dir "$1"
+	else
+		mkdir "$work_dir"
+	fi
+}
+
+manage_dir "$work_dir" 'work'
+manage_dir "$rpm_dir" 'RPMs'
+cd "$work_dir"
+
+# Download discord if needed
+archive_name=$(ls *.tar.gz)
+if [ $? -eq 0 ]; then
+	echo "Found $archive_name"
+	read -p 'Do you want to use this archive instead of downloading a new one? [y/N]' answer
+	case $answer in
+		[Yy]* )
+			echo 'Ok, I will use this this archive.'
+			;;
+		* )
+			download_discord
+			;;
+	esac
+else
+	download_discord
+fi
+
+# Extracts the archive
+echo 'Extracting the files...'
+archive_name=$(ls *.tar.gz)
+if [ ! -d "$downloaded_dir" ]; then
+	mkdir "$downloaded_dir"
+fi
+tar -xzf "$archive_name" -C "$downloaded_dir" --strip 1
+# --strip 1 gets rid of the top archive's directory
+
+
+# Gets the discord's version number + icon file name
+echo 'Analysing the files...'
+version_number=$(echo "$archive_name" | cut -d'-' -f3 | rev | cut -c 8- | rev)
+# Explaination on how it works:
+# cut -d'-' -f3  splits the archive's name around the '-' character, and takes the 3rd part
+# For example if archive_name is "discord-canary-0.0.10.tar.gz" we get "0.0.10.tar.gz"
+# Then, rev | cut -c 8- | rev  reverse the string, removes the first 7 characters, and re-reverse it.
+# This actually removes the last 8 characters, ie the ".tar.gz" part.
+# So in our example we'll get version_number=0.0.10
+cd "$downloaded_dir"
+icon_name=$(ls *.png)
+echo "Archive: $archive_name"
+echo "Version: $version_number"
+echo "Icon: $icon_name"
+
+# Creates a .desktop file:
+echo 'Creating .desktop file...'
+sed "s/_version/$version_number/; s/_icon/$icon_name/" "$desktop_model" > "$desktop_file"
+
+# Chooses the spec file based on the system's architecture and build the packages
+echo 'Creating the RPM package...'
+rpmbuild -bb $spec_file --define "_topdir $work_dir" --define "_rpmdir $rpm_dir" --define "version_number $version_number" --define "downloaded_dir $downloaded_dir" --define "desktop_file $desktop_file"
+
+echo '-----------'
+echo 'Done!'
+echo "The RPM package is located in the \"RPMs/x86_64\" folder."
+
+# Removes the work directory if the user wants to
+ask_remove_dir "$work_dir"