danielribeiro

How to get bitcoins for development using Regtest

Start bitcoind

> bitcoind -regtest -datadir=./ -printtoconsole

Generate block chain

> bitcoin-cli -regtest -datadir=./ generate 101

danielribeiro

#!/usr/bin/env ruby

require 'JSON'

device_types = JSON.parse `xcrun simctl list -j devicetypes`
runtimes = JSON.parse `xcrun simctl list -j runtimes`
devices = JSON.parse `xcrun simctl list -j devices`

devices['devices'].each do |runtime, runtime_devices|
  runtime_devices.each do |device|

danielribeiro

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
	<dict>
		<key>Label</key>
		<string>distccd-rpi</string>
		<key>Program</key>
		<string>/Users/YOUR_USER_NAME/Scripts/launchd-distccd.sh</string>
		<key>RunAtLoad</key>
		<true/>

danielribeiro

package main

import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
)

func main() {

danielribeiro

Some notes on remote debugging mac builds on Travisci.  It's hard to tell when something hangs what the cause it. Trial and error via commits is tedious. And on Mac , sometimes it's the gui asking for input. So I worked my around to get the access I needed for faster debugging a build.

#################################################
# Enable remote ssh access to travisci build for debugging
#################################################
# Add a key so we can login to travisci vm
- cat ssh/travisci.pub >> ~/.ssh/authorized_keys
- chmod 600 ssh/travisci
  
# Install netcat

danielribeiro

man() {
	env \
		LESS_TERMCAP_mb=$(printf "\e[1;31m") \
		LESS_TERMCAP_md=$(printf "\e[1;31m") \
		LESS_TERMCAP_me=$(printf "\e[0m") \
		LESS_TERMCAP_se=$(printf "\e[0m") \
		LESS_TERMCAP_so=$(printf "\e[1;44;33m") \
		LESS_TERMCAP_ue=$(printf "\e[0m") \
		LESS_TERMCAP_us=$(printf "\e[1;32m") \
			man "$@"

danielribeiro

# Runs a specified shell command in a separate thread.
# If it exceeds the given timeout in seconds, kills it.
# Returns any output produced by the command (stdout or stderr) as a String.
# Uses Kernel.select to wait up to the tick length (in seconds) between 
# checks on the command's status
#
# If you've got a cleaner way of doing this, I'd be interested to see it.
# If you think you can do it with Ruby's Timeout module, think again.
def run_with_timeout(command, timeout, tick)
  output = ''

danielribeiro

json = JSON.parse(`plutil -convert json -o - "#{filename}"`)

danielribeiro

#!/bin/sh
#
# Adam Sharp
# Aug 21, 2013
#
# Usage: Add it to your PATH and `git remove-submodule path/to/submodule`.
#
# Does the inverse of `git submodule add`:
#  1) `deinit` the submodule
#  2) Remove the submodule from the index and working directory

danielribeiro

# Do *not* load any libs here that are *not* part of Ruby’s standard-lib. Ever.

desc "Install all dependencies"
task :bootstrap do
  if system('which bundle')
    sh "bundle install"
    sh "git submodule update --init"
    # etc
  else
    $stderr.puts "\033[0;31m[!] Please install the bundler gem manually: $ [sudo] gem install bundler\e[0m"