add silent mode

tools/install_silent.sh

@@ -0,0 +1,115 @@
+main() {
+  # Use colors, but only if connected to a terminal, and that terminal
+  # supports them.
+  if which tput >/dev/null 2>&1; then
+      ncolors=$(tput colors)
+  fi
+  if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
+    RED="$(tput setaf 1)"
+    GREEN="$(tput setaf 2)"
+    YELLOW="$(tput setaf 3)"
+    BLUE="$(tput setaf 4)"
+    BOLD="$(tput bold)"
+    NORMAL="$(tput sgr0)"
+  else
+    RED=""
+    GREEN=""
+    YELLOW=""
+    BLUE=""
+    BOLD=""
+    NORMAL=""
+  fi
+
+  # Only enable exit-on-error after the non-critical colorization stuff,
+  # which may fail on systems lacking tput or terminfo
+  set -e
+
+  CHECK_ZSH_INSTALLED=$(grep /zsh$ /etc/shells | wc -l)
+  if [ ! $CHECK_ZSH_INSTALLED -ge 1 ]; then
+    printf "${YELLOW}Zsh is not installed!${NORMAL} Please install zsh first!\n"
+    exit
+  fi
+  unset CHECK_ZSH_INSTALLED
+
+  if [ ! -n "$ZSH" ]; then
+    ZSH=~/.oh-my-zsh
+  fi
+
+  if [ -d "$ZSH" ]; then
+    printf "${YELLOW}You already have Oh My Zsh installed.${NORMAL}\n"
+    printf "You'll need to remove $ZSH if you want to re-install.\n"
+    exit
+  fi
+
+  # Prevent the cloned repository from having insecure permissions. Failing to do
+  # so causes compinit() calls to fail with "command not found: compdef" errors
+  # for users with insecure umasks (e.g., "002", allowing group writability). Note
+  # that this will be ignored under Cygwin by default, as Windows ACLs take
+  # precedence over umasks except for filesystems mounted with option "noacl".
+  umask g-w,o-w
+
+  printf "${BLUE}Cloning Oh My Zsh...${NORMAL}\n"
+  hash git >/dev/null 2>&1 || {
+    echo "Error: git is not installed"
+    exit 1
+  }
+  # The Windows (MSYS) Git is not compatible with normal use on cygwin
+  if [ "$OSTYPE" = cygwin ]; then
+    if git --version | grep msysgit > /dev/null; then
+      echo "Error: Windows/MSYS Git is not supported on Cygwin"
+      echo "Error: Make sure the Cygwin git package is installed and is first on the path"
+      exit 1
+    fi
+  fi
+  env git clone --depth=1 https://github.com/robbyrussell/oh-my-zsh.git $ZSH || {
+    printf "Error: git clone of oh-my-zsh repo failed\n"
+    exit 1
+  }
+
+
+  printf "${BLUE}Looking for an existing zsh config...${NORMAL}\n"
+  if [ -f ~/.zshrc ] || [ -h ~/.zshrc ]; then
+    printf "${YELLOW}Found ~/.zshrc.${NORMAL} ${GREEN}Backing up to ~/.zshrc.pre-oh-my-zsh${NORMAL}\n";
+    mv ~/.zshrc ~/.zshrc.pre-oh-my-zsh;
+  fi
+
+  printf "${BLUE}Using the Oh My Zsh template file and adding it to ~/.zshrc${NORMAL}\n"
+  cp $ZSH/templates/zshrc.zsh-template ~/.zshrc
+  sed "/^export ZSH=/ c\\
+  export ZSH=$ZSH
+  " ~/.zshrc > ~/.zshrc-omztemp
+  mv -f ~/.zshrc-omztemp ~/.zshrc
+
+  # If this user's login shell is not already "zsh", attempt to switch.
+  TEST_CURRENT_SHELL=$(expr "$SHELL" : '.*/\(.*\)')
+  if [ "$TEST_CURRENT_SHELL" != "zsh" ]; then
+    # If this platform provides a "chsh" command (not Cygwin), do it, man!
+    if hash chsh >/dev/null 2>&1; then
+      printf "${BLUE}Time to change your default shell to zsh!${NORMAL}\n"
+      chsh -s $(grep /zsh$ /etc/shells | tail -1)
+    # Else, suggest the user do so manually.
+    else
+      printf "I can't change your shell automatically because this system does not have chsh.\n"
+      printf "${BLUE}Please manually change your default shell to zsh!${NORMAL}\n"
+    fi
+  fi
+
+  printf "${GREEN}"
+  echo '         __                                     __   '
+  echo '  ____  / /_     ____ ___  __  __   ____  _____/ /_  '
+  echo ' / __ \/ __ \   / __ `__ \/ / / /  /_  / / ___/ __ \ '
+  echo '/ /_/ / / / /  / / / / / / /_/ /    / /_(__  ) / / / '
+  echo '\____/_/ /_/  /_/ /_/ /_/\__, /    /___/____/_/ /_/  '
+  echo '                        /____/                       ....is now installed!'
+  echo ''
+  echo ''
+  echo 'Please look over the ~/.zshrc file to select plugins, themes, and options.'
+  echo ''
+  echo 'p.s. Follow us at https://twitter.com/ohmyzsh.'
+  echo ''
+  echo 'p.p.s. Get stickers and t-shirts at https://shop.planetargon.com.'
+  echo ''
+  printf "${NORMAL}"
+}
+
+main