dotfiles/setup.sh at master · krockpot/dotfiles · GitHub

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#!/bin/bash

# Initialization script to symlink the dotfiles.
# Based off https://github.com/nicksp/dotfiles/blob/master/setup.sh.

print_success() {
  # Print output in green
  printf "\e[0;32m  [✔] $1\e[0m\n"
}

print_error() {
  # Print output in red
  printf "\e[0;31m  [✖] $1 $2\e[0m\n"
}

print_question() {
  # Print output in yellow
  printf "\e[0;33m  [?] $1\e[0m"
}

execute() {
  $1 &> /dev/null
  print_result $? "${2:-$1}"
}

print_result() {
  [ $1 -eq 0 ] \
    && print_success "$2" \
    || print_error "$2"

  [ "$3" == "true" ] && [ $1 -ne 0 ] \
    && exit
}

ask_for_confirmation() {
  print_question "$1 [y/N] "
  read -n 1
  printf "\n"
}

answer_is_yes() {
  [[ "$REPLY" =~ ^[Yy]$ ]] \
    && return 0 \
    || return 1
}

install_zsh () {
  # Test to see if zshell is installed.  If it is:
  if [ -f /bin/zsh -o -f /usr/bin/zsh ]; then
    # Install Oh My Zsh if it isn't already present
    if [[ ! -d $HOME/.oh-my-zsh/ ]]; then
      echo "Switching to oh-my-zsh. Please re-run this script afterwards!"
      sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"
    fi
    # Set the default shell to zsh if it isn't currently set to zsh
    if [[ ! $(echo $SHELL) == $(which zsh) ]]; then
      chsh -s $(which zsh)
    fi
  else
    # If zsh isn't installed, get the platform of the current machine
    platform=$(uname);
    # If the platform is Linux, try an apt-get to install zsh and then recurse
    if [[ $platform == 'Linux' ]]; then
      if [[ -f /etc/redhat-release ]]; then
        sudo yum install zsh
        install_zsh
      fi
      if [[ -f /etc/debian_version ]]; then
        sudo apt-get install zsh
        install_zsh
      fi
    # If the platform is OS X, tell the user to install zsh :)
    elif [[ $platform == 'Darwin' ]]; then
      echo "We'll install zsh, then re-run this script!"
      brew install zsh
      exit
    fi
  fi
}

declare -a FILES_TO_SYMLINK=(
  'editor/vim'
  'editor/vimrc'

  'git/gitattributes'
  'git/gitconfig'
  'git/gitignore'

  'shell/dircolors'
  'shell/gdbinit'
  'shell/tmux.conf'
  'shell/tmux-power'
  'shell/zshrc'
  'shell/zsh'

  'bin'
)

# Prompt to switch to zsh and oh-my-zsh if not active on terminal.
if [ ! -f /bin/zsh -a ! -f /usr/bin/zsh -o ! -d $HOME/.oh-my-zsh/ ]; then
  ask_for_confirmation "Switch to zsh and oh-my-zsh?"
  if answer_is_yes; then
    install_zsh
  fi
fi

for i in ${FILES_TO_SYMLINK[@]}; do
  sourceFile="$(pwd)/$i"
  targetFile="$HOME/.$(printf "%s" "$i" | sed "s/.*\/\(.*\)/\1/g")"

  if [ ! -e "$targetFile" ]; then
    execute "ln -fs $sourceFile $targetFile" "$targetFile → $sourceFile"
  elif [ "$(readlink "$targetFile")" == "$sourceFile" ]; then
    print_success "$targetFile → $sourceFile"
  else
    ask_for_confirmation "'$targetFile' already exists, do you want to overwrite it?"
    if answer_is_yes; then
      rm -rf "$targetFile"
      execute "ln -fs $sourceFile $targetFile" "$targetFile → $sourceFile"
    else
      print_error "$targetFile → $sourceFile"
    fi
  fi
done

# Link custom zsh theme.
sourceFile="$(pwd)/themes/krockpot.zsh-theme"
targetFile="$HOME/.oh-my-zsh/custom/krockpot.zsh-theme"
execute "ln -fs $sourceFile $targetFile" "$targetFile → $sourceFile"