mattolenik

Keybase proof

I hereby claim:

• I am mattolenik on github.
• I am matthewolenik (https://keybase.io/matthewolenik) on keybase.
• I have a public key ASCQ3fh9LGPK1UYNYp6L_TGzifcHtI_bVCLZHJyIM-Vk-Qo

To claim this, I am signing this object:

mattolenik

gem_dir = "#{Dir.home}/.vagrant.d/gems/#{RUBY_VERSION}"

begin
  name = "inifile"
  version = "3.0.0"
  Gem::Specification.find_by_name(name, version)
rescue Gem::LoadError
  require "rubygems/dependency_installer"
  installer = Gem::DependencyInstaller.new(:document => [], :install_dir => gem_dir)
  installer.install(name, version)

mattolenik

# Install any missing plugins upon 'vagrant up'
def ensure_plugins(required_plugins)
  if ARGV[0] == 'up'
    missing_plugins = required_plugins.select {|p| not Vagrant.has_plugin? p}
    unless missing_plugins.empty?
      plugins = missing_plugins.join(' ')
      puts "Found missing plugins: #{plugins}, installing..."
      exec "vagrant plugin install #{plugins} && vagrant up"
    end
  end

mattolenik

# Caveat: grep can't match the beginning of the file, so this will catch files with a shebang on any line,
# such as a script being embedded in another kind of file. To get around this each file should be checked with head -n1
grep -Ir '^#!/.*sh' --exclude-dir 'node_modules' --exclude '*.tpl' ./* | awk -F: '{print $1}'

mattolenik

[[ 'function some_func ( )  {' =~ ^[[:blank:]]*(function[[:blank:]]+)?([\x30-\x39\x41-\x5A\x61-\x7A\xA0-\x19FF\+\-\.\^\/\?,%#_@:~]+)[[:blank:]]*\([[:blank:]]*\)[[:blank:]]*({)?$ ]]

#BASH_REMATCH results:
#0 - whole match
#1 - either 'function' or empty string
#2 - function name
#3 - either '{' or empty string

#Character ranges include pretty much all unicode and normal characters that bash will accept.

mattolenik

# Strips n characters from the beginning of the line. This example uncomments a line in /etc/sudoers.
n=3
cat /etc/sudoers | awk '/^# %wheel ALL=\(ALL\) ALL/ {$0=substr($0,$n)} 1

mattolenik

#!/bin/bash
# From https://stackoverflow.com/questions/16115144/bash-save-and-restore-trap-state-easy-way-to-manage-multiple-handlers-for-trap
trap_stack_name() {
  local sig=${1//[^a-zA-Z0-9]/_}
  echo "__trap_stack_$sig"
}

extract_trap() {
  echo ${@:3:$(($#-3))}
}

mattolenik

# From https://stackoverflow.com/questions/3338030/multiple-bash-traps-for-the-same-signal
# note: printf is used instead of echo to avoid backslash
# processing and to properly handle values that begin with a '-'.

log() { printf '%s\n' "$*"; }
error() { log "ERROR: $*" >&2; }
fatal() { error "$@"; exit 1; }

# appends a command to a trap
#

mattolenik

# Searches for a named argument in the form of "key=value".
# Returns the value associated with the key.
#
get_named_arg() {
  local key="$1"
  local default="${2:-}"
  shift 2
  for pair in "$@"; do
    if [[ $pair =~ ^([^=]+)=([^=]*)$ ]] && [[ ${BASH_REMATCH[1]} == "$key" ]]; then
      printf %s "${BASH_REMATCH[2]}"

mattolenik

# Creates/joins a shared session using session groups (-t option).
# This simplifies making a shared group. Just invoke tmuxx from anywhere
# and it'll always join to the same, shared session.
#
# Parameters:
# $1  the name of the session group, defaults to 'main'
tmuxx () {
	local session="${1:-main}" 
	tmux new-session -t "$session"
}