INSTALL.sh

#!/bin/bash
echo '#################################################'
echo '# Custom settings'
echo '#################################################'
[[ -f ~/.zsh.my.sh ]] && source ~/.zsh.my.sh

function custom-set {
    value=$(eval echo "$`eval echo $1`")
    if [[ -z "$value" ]]; then
        echo -n "Please input your $1 [$2]: "
        eval "read $1"
        value=$(eval echo "$`eval echo $1`")
        [[ -z "$value" ]] && eval "$1='$2'"
        value=$(eval echo "$`eval echo $1`")
        if [[ -z "$3" ]]; then
            echo "$1='$value'" >> ~/.zsh.my.sh
        else
            echo "$1=($value)" >> ~/.zsh.my.sh
        fi
    else
        echo "The current setting of $1 is $value"
    fi
}

custom-set DEFAULT_USER "$USER"
if [[ "$PLATFORM" == 'Darwin' ]]; then
    DEF_INS='brew install'
else
    DEF_INS='sudo apt-get install'
fi
custom-set INSTALLER "$DEF_INS"
custom-set ZSH_THEME "bira"

plugins=''
for p in ./plugins/*.rc.sh; do
    p=`basename $p`
    p=${p%.*}
    p=${p%.*}
    plugins="$p $plugins"
done
custom-set my_zsh_mod "$plugins" is_list

echo '#################################################'
echo '# Installing prerequisites'
echo '#################################################'
source ~/.zsh.my.sh
source ./.zshenv
source ./init.rc.sh

# download iTerm2 theme files
if [[ "$PLATFORM" == 'Darwin' ]]; then
    echo '#################################################'
    echo '# Downloading iTerm themes'
    echo '#################################################'
    [[ -d "${HOME}/Downloads/" ]] || mkdir "${HOME}/Downloads/"
    themeweb='https://raw.githubusercontent.com/altercation/solarized/master/iterm2-colors-solarized/${theme}.itermcolors'
    for theme in "Solarized Light" "Solarized Dark"
    do
        if [[ ! -f "${HOME}/Downloads/${theme}.itermcolors" ]]; then
            curl  `eval "echo $themeweb | sed 's/ /%20/g'"`\
                  > "${HOME}/Downloads/${theme}.itermcolors"
        fi
    done
fi

echo '#################################################'
echo '# Installing prerequisites'
echo '#################################################'

if [[ `basename "$SHELL"` != `basename $(which zsh)` ]]; then
    echo '#################################################'
    echo "# Now change zsh as your default shell ..."
    echo '#################################################'
    export SHELL=`which zsh`
    chsh -s `which zsh`
fi

echo -n "Check oh-my-zsh ... "
if [[ -d "${HOME}/.oh-my-zsh/" ]]; then
    echo "Found."
else
    echo "Not Found."
    echo '#################################################'
    echo "# Installing on-my-zsh"
    echo '#################################################'
    sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"
    echo "Done."
    echo
fi

echo '#################################################'
echo "# Installing oh-my-zsh plugins"
echo '#################################################'
[[ -d ~/.oh-my-zsh/custom/plugins/zsh-completions ]] \
    || git clone https://github.com/zsh-users/zsh-completions ~/.oh-my-zsh/custom/plugins/zsh-completions

[[ -d ~/.oh-my-zsh/custom/plugins/zsh-syntax-highlighting ]] \
    || git clone git://github.com/zsh-users/zsh-syntax-highlighting.git ~/.oh-my-zsh/custom/plugins/zsh-syntax-highlighting

echo '#################################################'
echo "# Linking files"
echo '#################################################'
[[ -f ~/.gitconfig ]] || cp .gitconfig ~
for link in .zshrc .percol.d .zshenv
do
    echo "Now install my $link"
    differ=`diff "${PWD}/$link" "${HOME}/$link" 2>/dev/null`
    if [[ "$?" != "0" || -n "$differ" ]]; then
        [[ -f "${HOME}/$link" || -d "${HOME}/$link" ]] && mv "${HOME}/$link" "${HOME}/${link}.bk"
        echo "Creating link from ${PWD}/$link to ${HOME}/$link"
        echo
        ln -s "${PWD}/$link" "${HOME}/$link"
    else
        echo "$link is already up-to-date."
    fi
done