chromebrew/cbrew

#!/usr/bin/env ruby
require 'find'
require 'net/http'
require 'uri'
require 'digest/sha1'
require 'json'

@command = ARGV[0]
@pkgName = ARGV[1]

@device = JSON.parse(File.read('./device.json'), symbolize_names: true)
@device.each do |key, elem| #symbolize also values
  @device[key] = @device[key].to_sym rescue @device[key]
end

def setPkg
  require './packages/' + @pkgName
  @pkg = Object.const_get(@pkgName.capitalize)
  puts "Found #{@pkgName}, version #{@pkg.version}"
end

def search (pkgName)
  Find.find ('packages') do |filename|
    return setPkg if filename == 'packages/' + pkgName + '.rb'
  end
  puts "package #{pkgName} not found :("
end

def download
  if @pkg.binary_url && @pkg.binary_url.has_key?(@device[:architecture])
    url = @pkg.binary_url[@device[:architecture]]
    source = false
  else
    url = @pkg.source_url
    source = true
  end
  uri = URI.parse url
  filename = File.basename(uri.path)
  system('wget', '--content-disposition', url)
  abort 'Checksum mismatch, try again' unless Digest::SHA1.hexdigest( File.read("./#{filename}") ) == @pkg.binary_sha1[@device[:architecture]]
  return {source: source, filename: filename}
end

def install
  meta = download
  if meta[:source] == true
    @pkg.build
    @pkg.install
  else#if meta[:source] == false
    system "tar", "zxf", meta[:filename]
  end
end

case @command
when "search"
  search @pkgName
when "download"
  search @pkgName
  download
when "install"
  search @pkgName
  install
else
  puts "I have no idea how to do #{@command} :("
end