install

#!/bin/bash

set -e

cd "$(dirname "$0")"

source lib/arch.sh
source lib/print.sh
source lib/run.sh

say-loud "Welcome to dxw!"
say "Let's get you set up"
say "This may take a while..."
say "You might want to find something else to do while we do this"
say "But don't go away completely! You'll need to do things at points"

if ! ask_yN "Are you ready?"; then
  say-loud "Goodbye!"
  exit 1
fi

if ! macos; then
  instruct "It looks like you're not running this in macOS"
  instruct "We don't support other operating systems, sorry!"
  exit 1
fi

# Begin Rosetta

if m1; then
  say "It looks like you're on a Mac with Apple silicon"
  say-loud "Installing the Intel compatibility layer, Rosetta"
  say "You might be asked for your login password and to agree to terms and conditions..."
  run 'arch -arm64e softwareupdate --install-rosetta'
fi

# End Rosetta

# Begin Homebrew

if m1; then
  say-loud "Installing Homebrew for Apple silicon software"
  say "You might be asked for your login password and to confirm"
  say "Once you've confirmed, this might take a few minutes..."
  # shellcheck disable=SC2016
  run 'arch -arm64e /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"'

  say-loud "Installing Homebrew for Intel software"
  say "You might be asked for your login password and to confirm"
  say "Once you've confirmed, this might take a few minutes..."
  # shellcheck disable=SC2016
  run 'arch -x86_64 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"'
else
  say-loud "Installing Homebrew"
  say "You might be asked for your login password and to confirm"
  say "Once you've confirmed, this might take a few minutes..."
  # shellcheck disable=SC2016
  run '/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"'
fi

say-loud "Configuring Homebrew for the rest of this install..."
if m1; then
  eval "$(/usr/local/bin/brew shellenv)"
  eval "$(/opt/homebrew/bin/brew shellenv)"
else
  eval "$(/usr/local/bin/brew shellenv)"
fi

instruct "Homebrew manages software on your machine for you"
instruct "Try to use it when you need to install new things"
instruct "It will make keeping them up to date easier"
instruct "You can install most apps using it too!"
say "See https://brew.sh/ for more information about Homebrew"
pause

# End Homebrew

# Begin dependencies via Homebrew

say-loud "Installing recommended packages and apps with Homebrew"
say "You might be asked for your login password"
say "This might take a while..."
run_with_retry 'brew bundle install --no-lock --verbose'
pause

# End dependencies via Homebrew

# Begin Nerd Font

say-loud "Installing Fira Code Nerd Font"
say-loud "This adds support for icons used in custom prompts"
say-loud "E.g. Starship, which was installed via Homebrew"
say-loud "You might be asked for permission to modify your Terminal settings"
run_with_retry 'echo "tell app \"Terminal\" to set font name of settings set \"Basic\" to \"FiraCodeNerdFontComplete-Retina\"" | osascript;'

DEFAULT_ITERM2=
if ! [ -f ~/Library/Preferences/com.googlecode.iterm2.plist ]; then
  DEFAULT_ITERM2=1
elif ask_Yn "Do you want to overwrite your existing iTerm2 settings (to apply the font)?"; then
  DEFAULT_ITERM2=1
  say-loud "Creating a backup..."
  run 'mv ~/Library/Preferences/com.googlecode.iterm2.plist ~/Library/Preferences/com.googlecode.iterm2.plist.bak'
fi

if [ -n "$DEFAULT_ITERM2" ]; then
  say-loud "Creating default iTerm2 settings..."
  run 'cp src/com.googlecode.iterm2.plist ~/Library/Preferences/com.googlecode.iterm2.plist'
fi

# End Nerd Font

# Begin ZSH

say-loud "Setting ZSH as the default shell"
say "You might be asked for your login password..."

if ! sudo grep "$(brew --prefix)/bin/zsh" /etc/shells; then
  # shellcheck disable=SC2016
  run 'echo "$(brew --prefix)/bin/zsh" | sudo tee -a /etc/shells'
fi

# shellcheck disable=SC2016
run 'chsh -s "$(brew --prefix)/bin/zsh" "$USER"'

DEFAULT_ZSHRC=
if ! [ -f ~/.zshrc ]; then
  DEFAULT_ZSHRC=1
elif ask_Yn "Do you want to overwrite your existing ZSH config?"; then
  DEFAULT_ZSHRC=1
  say-loud "Creating a backup..."
  run 'mv ~/.zshrc ~/.zshrc.bak'
fi

if [ -n "$DEFAULT_ZSHRC" ]; then
  say-loud "Creating default ZSH config..."
  run 'cp src/zshrc ~/.zshrc'
fi

# End ZSH

# Begin choices

instruct "Now you'll need to answer some questions about preferences"
instruct "Don't know what a question is asking about?"
instruct "You probably want the default option"
instruct "(Press return without giving an answer)"

HEADLESS_POSTGRESQL=
if ask_Yn "Are you content with running Postgresql as a headless service?"; then
  HEADLESS_POSTGRESQL=1
  say-loud "Installing Postgresql..."
  say "You might be asked for your login password..."
  brew install postgresql
  brew services start postgresql
else
  say-loud "Installing Postgres.app..."
  say "You might be asked for your login password..."
  brew install postgres-unofficial
fi

if [ -n "$DEFAULT_ZSHRC" ] && ! ask_Yn "Are you content with using nano as your 'EDITOR'?"; then
  ask "What should we set 'EDITOR' to? [command name only, not a path]"
  sed -i '' 's/export EDITOR=nano/export EDITOR="'"$REPLY"'"/' ~/.zshrc
  instruct "You might want to check '$REPLY' is installed after we're done."
fi

# End choices

say-loud "We're done!"

say "We installed Homebrew for installing and managing most software"

if m1; then
  if [ -n "$DEFAULT_ZSHRC" ]; then
    say "We installed Intel Homebrew as a backup (aliased as 'ibrew')"
  else
    say "We installed Intel Homebrew as a backup"
  fi
fi

say "We installed the following packages:"
echo
awk '/^brew /{print}' Brewfile | sort | sed -r 's,^brew "(.+)".*$,\1\n    https://formulae.brew.sh/formula/\1\n,'

say "We installed the following applications:"
echo
awk '/^cask /{print}' Brewfile | sort | sed -r 's,^cask "(.+)".*$,\1\n    https://formulae.brew.sh/cask/\1\n,'

if [ -n "$HEADLESS_POSTGRESQL" ]; then
  say "We installed Postgresql as a service"
else
  say "We installed Postgres.app"
fi

if [ -n "$DEFAULT_ZSHRC" ]; then
  say "We set ZSH as the default shell with some default configuration"
else
  say "We set ZSH as the default shell"
fi

pause

instruct "Quit your terminal when you're done"
say "You might like to use the newly installed iTerm.app in future"