Install and update Alacritty in Mac OS

install_alacritty.sh

#!/usr/bin/env bash
set -e -o pipefail

app_name='Alacritty'
owner='alacritty'
repo='alacritty'
version=$(curl -s "https://api.github.com/repos/${owner}/${repo}/releases/latest" | jq -r .tag_name)
filename="${app_name}-${version}.dmg"
prefix=$(brew --prefix 2>/dev/null)
resources="/Applications/${app_name}.app/Contents/Resources"

cd ~/Downloads
if [ -e "${filename}" ]; then
  echo "${filename} exists already, aborting. Delete it to force installation"
  exit 1
fi

echo "Downloading ${filename}"
curl -L -O "https://github.com/${owner}/${repo}/releases/download/${version}/${filename}"

echo 'Mounting image...'
hdiutil attach ${filename}

path="/Applications/${app_name}.app/"
echo "Installing to ${path}"
rsync -a "/Volumes/${app_name}/${app_name}.app/" "${path}"

echo 'Unmounting image...'
hdiutil detach "/Volumes/${app_name}"

echo 'Bypassing Gatekeeper quarantine...'
xattr -rd com.apple.quarantine "/Applications/${app_name}.app"

echo 'Copying terminfo...'
mkdir -p ~/.terminfo/61/
rsync -a ${resources}/61/ ~/.terminfo/61/

echo 'Copying man pages...'
mkdir -p "${prefix}/share/man/man1" "${prefix}/share/man/man5"
rsync -a "${resources}"/*.1.gz "${prefix}/share/man/man1/"
rsync -a "${resources}"/*.5.gz "${prefix}/share/man/man5/"

echo 'Copying zsh completions...'
mkdir -p "${prefix}/share/zsh/site-functions"
rsync -a "${resources}/completions/_alacritty" "${prefix}/share/zsh/site-functions/"

echo 'Copying bash completions...'
mkdir -p "${prefix}/etc/bash_completion.d"
rsync -a "${resources}/completions/alacritty.bash" "${prefix}/etc/bash_completion.d/"

echo 'Cleaning up...'
rm "${filename}"