simonoff

Grunt and Cordova 3

The advantages of using Grunt with Cordova:

1. It simplifies working with the cordova cli.
2. It provides a mechanism to copy platform customization to the platforms directory without having to commit the generated plugins and platforms directories to version control.
3. It provides a way to watch resources and automatically run cordova commands.

simonoff

platforms/
plugins/

simonoff

app = node[:rails][:app]

rails_base app[:name] do
  ruby_ver app[:ruby_ver]
  gemset app[:gemset]
end

%w{config log pids cached-copy bundle system}.each do |dir|
  directory "#{app[:app_root]}/shared/#{dir}" do
    owner app[:deploy_user]

simonoff

Alexander Simonov

Contact details

• Twitter: @scrapbookdev
• GitHub: https://github.com/simonoff

Speaker bio

I'm software engeneer with more then 10 years experience. Last 7 years I'm using Ruby for my projects.

simonoff

a = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17]
n = 1000000
Benchmark.bm do |x|
  x.report('in_groups_of') { n.times { a.in_groups_of(7, false).select{|x| x.size == 7}  } }
  x.report('each_slice') { n.times { a.each_slice(7).select{|x| x.size == 7} } }
  x.report('each_slice with result') { n.times { res = []; a.each_slice(7) {|x| res << x if x.size == 7 }; } }
end

#                         user        system      total        real
#in_groups_of             4.690000   0.010000   4.700000 (  4.745116)

simonoff

# Adapted from a C# example here:
# http://stackoverflow.com/questions/43224/how-do-i-calculate-a-trendline-for-a-graph

# And thanks to John Esser for helping figure out how to
# calculate the targets to stabilize a negative slope!

class LinearRegression
  attr_accessor :slope, :intercept

  # Pass in an array of values to get the regression on

simonoff

# RSpec matcher to spec delegations.
# Forked from https://gist.github.com/ssimeonov/5942729 with fixes
# for arity + custom prefix.
#
# Usage:
#
#     describe Post do
#       it { should delegate(:name).to(:author).with_prefix } # post.author_name
#       it { should delegate(:name).to(:author).with_prefix(:any) } # post.any_name
#       it { should delegate(:month).to(:created_at) }

simonoff

task :teamcity => ['teamcity:clean', 'teamcity:setup', 'barista:brew', 'fork:spec', 'teamcity:cucumber', 'jasmine:ci']

namespace :teamcity do
  task :setup do
    RAILS_ENV = 'test'
    Rake::Task['db:drop'].invoke
    Rake::Task['db:create'].invoke
    Rake::Task['db:schema:load'].invoke
  end

simonoff

• This creates a 560mb ramdisk. Adjust the size accordingly. I think the number at the end of the command is the number of disk blocks. They are 2kb in size for me.
• Restarting postgres is not necessary; you can create the ramdisk and tablespace while postgres is running.
• You will lose all data in the ramdisk tablespace when you shut your machine down

  $ diskutil erasevolume HFS+ "postgres_ramdisk" `hdiutil attach -nomount ram://1165430`
  Started erase on disk1
  Unmounting disk
  Erasing
 Initialized /dev/rdisk1 as a 569 MB HFS Plus volume

simonoff

class Hash

  def select_and_sort_by(whitelist)
    whitelist.inject({}) do |m,k|
      k = k.to_sym
      m[k] = self[k] if self.has_key?(k)
      m
    end
  end