run_once_20_install-zsh.tmpl

#!/usr/bin/env bash

echo "Setting ZSH as default shell..."

set -e

success () {
  printf "\r\033[2K  [ \033[00;32mOK\033[0m ] $1\n"
}

{{ if eq .chezmoi.os "darwin" }}
# Add Homebrew ZSH to login shell options
HOMEBREW_ZSH_PATH="$(brew --prefix)/bin/zsh"
if ! grep -Fxq "$HOMEBREW_ZSH_PATH" /etc/shells; then
	echo "Adding Homebrew zsh ($HOMEBREW_ZSH_PATH) to login shell options (/etc/shells)..."
	sudo sh -c 'echo "$(brew --prefix)/bin/zsh" >> /etc/shells'
else
	echo "Homebrew zsh already in login shell options (/etc/shells)..."
fi

DEFAULT_SHELL=$(basename $(dscl . -read /Users/$(whoami) UserShell | cut -f2 -d" "))
{{ else }}
DEFAULT_SHELL=$(basename $(grep ^$(id -un): /etc/passwd | cut -d : -f 7-))
{{ end }}

if [ "$DEFAULT_SHELL" == "zsh" ]
then
  success "default shell already set to ZSH"
else
  success "changing default shell to kick-ass ZSH"
  chsh -s $(which zsh)
fi