drbrain

#!/usr/bin/env bash
set -e
[ -n "$DEBUG" ] && set -x

banner()  { printf -- "-----> $*\n"; }

banner "Restarting VMware networking"

banner "Stopping networking"
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cli --stop

drbrain

require 'rake/tasklib'
require 'rake/clean'

##
# Creates a cross-compiled library that mruby-cli can use to link with
# each cross-built command.
#
#   CrossLibrary.new "curl" do |cross|
#     cross.release_name = "curl-7.28.0"
#     cross.url = "https://curl.example/download/#{cross.release}.tar.gz"

drbrain

class TestMyModule < Minitest::Test
  include MyModule
  
  def test_method_from_my_module
    actual = method_from_my_module input_data
    
    assert_equal 'something', actual
  end
end

drbrain

#!/usr/bin/env ruby

numbers = (1..100).to_a

numbers.each do |n|
  div_5 = n.divmod(5).last.zero?
  div_7 = n.divmod(7).last.zero?
  
  message =
    if div_5 and div_7 then

drbrain

task default: %w[shellmode shellmode_ENV direct io]

task :shellmode do
  sh "echo hello world"
end

task :shellmode_ENV do
  env = {
    'MESSAGE' => 'hello world',
  }

drbrain

By using a rake task you allow rake to figure out if the check is needed or not. For example, you may need to check if multiple tasks that are dependencies of each other are running inside Docker

If you use a method to perform the check it will run every time for every task. This reduces performance because you really only need to run this check once.

If you use a task as a precondition instead rake will determine when it needs to run and only run it once.

drbrain

require 'drb'
require 'drb/unix'

shared = []
DRb.start_service 'drbunix:', shared

loopback = DRb.uri

puts loopback

drbrain

#include "ruby.h"

int
main(int argc, char **argv) {
    char *real_argv[] = {
	"--disable-gems",
	"-e",
	"Marshal.load $stdin.read"
    };

drbrain

$ echo hello | gpg --sign --default-key 59354e36 -a > signed
$ cat signed
-----BEGIN PGP MESSAGE-----
Comment: GPGTools - https://gpgtools.org

owEBPALD/ZANAwAKAUWt78FZNU42AcsMYgBD2CE+aGVsbG8KiQIcBAABCgAGBQJD
2CE+AAoJEEWt78FZNU427+IP/jcAm4ZctrftvFXjr0sAs5r+TmSfGVAfeK5l9/nC
zHAH4Z+udXxW9KjVs5SIo878Kb4GWx5KyHrNw/x6rr0w8wJtCNjMK5xuhMFhN8na
OtwVo+6Rc80zozbiFau8z2iH/G2AS+cYendSLZcEMl910BIcDQI2FgIfepHAp1LT
9K9Y8VR/HVT+9weF9LFwvoBSEiDWkrDjYAACsQLjZCqZJmb+oJ3p70lkL36T+4en

drbrain

class A
  def self.m
    puts "it didn't work!!"
  end
end

module M
  def m
    puts "it worked!"
  end