mulle-bootstrap-brew.sh
d388168a
 #! /bin/sh
 #
 #   Copyright (c) 2015 Nat! - Mulle kybernetiK
 #   All rights reserved.
 #
 #   Redistribution and use in source and binary forms, with or without
 #   modification, are permitted provided that the following conditions are met:
 #
 #   Redistributions of source code must retain the above copyright notice, this
 #   list of conditions and the following disclaimer.
 #
 #   Redistributions in binary form must reproduce the above copyright notice,
 #   this list of conditions and the following disclaimer in the documentation
 #   and/or other materials provided with the distribution.
 #
 #   Neither the name of Mulle kybernetiK nor the names of its contributors
 #   may be used to endorse or promote products derived from this software
 #   without specific prior written permission.
 #
 #   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 #   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 #   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 #   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 #   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 #   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 #   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 #   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 #   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 #   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 #   POSSIBILITY OF SUCH DAMAGE.
 
 fetch_brew_if_needed()
 {
    local last_update
    local binary
 
    last_update="${HOME}/.mulle-bootstrap/brew-update"
 
    binary=`which brew`
    if [ "${binary}" = "" ]
    then
       user_say_yes "Brew isn't installed on this system.
 Install brew now (Linux or OS X should work) ? "
       if [ $? -ne 0 ]
       then
          return 1
       fi
       if [ "`uname`" = 'Darwin' ]
       then
          log_info "Installing OS X brew"
          exekutor ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" || exit 1
       else
          log_info "Installing Linux brew"
          exekutor ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/linuxbrew/go/install)" || exit 1
       fi
 
       log_fluff "Touching ${last_update}"
       exekutor mkdir_if_missing "`dirname "${last_update}"`"
       exekutor touch "${last_update}"
       return 1
    fi
    return 0
 }
 
 
 brew_update_if_needed()
 {
    local stale
    local last_update
    local what
 
    what="$1"
    last_update="${HOME}/.mulle-bootstrap/brew-update"
 
    fetch_brew_if_needed
    if [ $? -eq 1 ]
   	then
 	  	return 0  ## just fetched it
 	fi
 
    if [ -f "${last_update}" ]
    then
       stale="`find "${last_update}" -mtime +1 -type f -exec echo '{}' \;`"
       if [ -f "${last_update}" -a "$stale" = "" ]
       then
          log_fluff "brew seems to be up to date"
          return 0
       fi
    fi
 
    user_say_yes "Should brew be updated before installing ${what} ?"
 
    if [ $? -eq 0 ]
    then
       log_fluff "Updating brew, this can take some time..."
    	exekutor brew update
 
 	   mkdir_if_missing "`dirname "${last_update}"`"
    	exekutor touch "${last_update}"
    fi
 }