138 lines
4.3 KiB
Bash
Executable file
138 lines
4.3 KiB
Bash
Executable file
#!/bin/sh
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# Author: TheElectronWill
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# This script downloads the latest version of Discord for linux, and creates a package with rpmbuild.
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desktop_model="$PWD/discord.desktop"
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spec_file="$PWD/discord.spec"
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rpm_dir="$PWD/RPMs"
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work_dir="$PWD/work"
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downloaded_dir="$work_dir/discord"
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desktop_file="$work_dir/discord.desktop"
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# It's a bad idea to run rpmbuild as root!
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if [ "$(id -u)" = "0" ]; then
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echo '------------------------ WARNING ------------------------'
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echo 'This script should NOT be executed with root privileges!'
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echo 'Building rpm packages as root is dangerous and may harm the system!'
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echo 'Actually, badly written RPM spec files may execute dangerous command in the system directories.'
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echo 'So it is REALLY safer not to run this script as root.'
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echo 'If you still want to run this script as root, type "do it!" within 5 seconds (type anything else to exit):'
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read -t 5 -p 'Do you really want to do it (not recommended)? ' answer
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if [ "$answer" != "do it!" ]; then
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exit
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fi
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echo '------------------------ WARNING ------------------------'
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fi
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# Checks that rpmbuild is installed.
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if ! type 'rpmbuild' > /dev/null; then
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echo 'You need the rpm development tools to create rpm packages.'
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read -n 1 -p 'Do you want to install the rpmdevtools package now? [y/N]' answer
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echo
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case "$answer" in
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y|Y)
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sudo -p 'Enter your password to install rpmdevtools: ' dnf install rpmdevtools
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;;
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*)
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echo "Ok, I won't install rpmdevtools."
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exit
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esac
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else
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echo "rpmbuild detected!"
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fi
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# Downloads the discord tar.gz archive and puts its name in the global variable archive_name.
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download_discord() {
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echo 'Downloading discord canary for linux...'
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wget -q --show-progress --content-disposition 'https://discordapp.com/api/download/canary?platform=linux&format=tar.gz'
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archive_name="$(ls *.tar.gz)"
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}
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# Asks the user if they want to remove the specified directory, and removes it if they want to.
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ask_remove_dir() {
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read -n 1 -p "Do you want to remove the \"$1\" directory? [y/N]" answer
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echo
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case "$answer" in
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y|Y)
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rm -r "$1"
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echo "\"$1\" directory removed."
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;;
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*)
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echo "Ok, I won't remove it."
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esac
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echo
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}
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# If the specified directory exists, asks the user if they want to remove it.
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# If it doesn't exist, creates it.
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manage_dir() {
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if [ -d "$1" ]; then
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echo "The $2 directory already exist. It may contain outdated data."
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ask_remove_dir "$1"
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fi
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mkdir -p "$1"
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}
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manage_dir "$work_dir" 'work'
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manage_dir "$rpm_dir" 'RPMs'
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cd "$work_dir"
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# Downloads discord if needed.
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archive_name="$(ls *.tar.gz 2>/dev/null)"
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if [ $? -eq 0 ]; then
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echo "Found $archive_name"
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read -n 1 -p 'Do you want to use this archive instead of downloading a new one? [y/N]' answer
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echo
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case "$answer" in
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y|Y)
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echo 'Ok, I will use this archive.'
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;;
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*)
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rm "$archive_name"
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download_discord
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esac
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else
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download_discord
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fi
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echo
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echo 'Extracting the files...'
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archive_name="$(ls *.tar.gz)"
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if [ ! -d "$downloaded_dir" ]; then
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mkdir "$downloaded_dir"
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fi
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tar -xzf "$archive_name" -C "$downloaded_dir" --strip 1
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# --strip 1 gets rid of the top archive's directory
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# Gets the discord's version number + icon file name
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echo 'Analysing the files...'
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version_number="$(echo "$archive_name" | cut -d'-' -f3 | rev | cut -c 8- | rev)"
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# Explaination on how it works:
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# cut -d'-' -f3 splits the archive's name around the '-' character, and takes the 3rd part
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# For example if archive_name is "discord-canary-0.0.10.tar.gz" we get "0.0.10.tar.gz"
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# Then, rev | cut -c 8- | rev reverse the string, removes the first 7 characters, and re-reverse it.
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# This actually removes the last 8 characters, ie the ".tar.gz" part.
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# So in our example we'll get version_number=0.0.10
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cd "$downloaded_dir"
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icon_name="$(ls *.png)"
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echo " Archive: $archive_name"
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echo " Version: $version_number"
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echo " Icon: $icon_name"
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echo 'Creating .desktop file...'
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sed "s/_version/$version_number/; s/_icon/$icon_name/" "$desktop_model" > "$desktop_file"
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echo 'Creating the RPM package (this may take a while)...'
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rpmbuild --quiet -bb "$spec_file" --define "_topdir $work_dir" --define "_rpmdir $rpm_dir"\
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--define "version_number $version_number" --define "downloaded_dir $downloaded_dir"\
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--define "desktop_file $desktop_file"
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echo
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echo '------------------------- Done! -------------------------'
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echo "The RPM package is located in the \"RPMs/x86_64\" folder."
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ask_remove_dir "$work_dir"
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