burke

#!/bin/bash
#
# usage example:
#   $ , yarn --help
# This finds a derivation providing a bin/yarn, and runs it with `nix run`.
# If there are multiple candidates, the user chooses one using `fzy`.
set -euo pipefail

if [[ $# -lt 1 ]]; then
  >&2 echo "usage: , <program> [arguments]"

burke

The rest of these files are the code referenced in my NixCon 2019 talk which live in Shopify's non-public codebases. Everything in this gist is extracted with minimal or no change from our codebase, and thus some of it references libraries or other code not included here. cli-ui and cli-kit probably comprise a majority of these cases.

All code Copyright Shopify, 2019, released here under MIT License.

burke

require('yaml')

module Ohno
  def self.replace_index(welp, index)
    case welp
    when String
      welp == "$index" ? index : welp.gsub(/\$index/, index.to_s)
    else
      welp
    end

burke

r<cr>

Replacing a space with a newline doesn't obey indentation rules:

  def foo(x)
    a = x.each { |e| puts(e) }
                  # ^ put cursor here and press `r<cr>`.

burke

#!/usr/bin/ruby --disable-gems

require('open3')

# http://fsck.com/~jesse/tmp/2019-02-15/bdfca368-6f85-40d3-ba47-e730c4c2b712/left-key-spacing.pdf
out, stat = Open3.capture2('qpdf', '--qdf', '--object-streams=disable', 'left-key-spacing.pdf', '-')
abort('qpdf fail') unless stat.success?
out.force_encoding(Encoding::BINARY)

# coordinates are indexed from top-left, x is horizontal; y is vertical

burke

;;; helm-dev.el --- dev cd - projectile/helm interface. -*- lexical-binding: t -*-

;; Version: 1.0.0
;; Package-Requires: ((helm "1.5") (cl-lib "0.5") (emacs "24.1"))

;;; Code:

(require 'cl-lib)
(require 'helm)
(require 'helm-utils)

burke

        ctx = OpenSSL::SSL::SSLContext.new
        ctx.set_params(verify_mode: OpenSSL::SSL::VERIFY_PEER)

        raw_sock = TCPSocket.new(host, 443)

        ssl_sock = OpenSSL::SSL::SSLSocket.new(raw_sock, ctx)
        ssl_sock.hostname = host
        ssl_sock.sync_close = true
        ssl_sock.connect

burke

function prepend_path () {
  local path; path=$1; shift

  export PATH="$(
    awk -v RS=: -v "prepend=$path" '
      BEGIN         { a = prepend ":" }
      $0 != prepend { a = a $0 ":" } 
      END           { print(substr(a, 1, length(a)-1)) }
    ' <<< $PATH
  )"

burke

#!/usr/bin/env ruby

$:.unshift("/opt/dev/vendor/deps/cli-kit/lib")
$:.unshift("/opt/dev/vendor/deps/cli-ui/lib")

require 'cli/ui'
require 'cli/kit'

CLI::UI::StdoutRouter.enable

burke

# detects whether a terminal is dark-on-light or light-on-dark.
# Only purposefully supports Terminal.app and iTerm, but a bunch of things use
# $COLORFGBG.
module BackgroundDetector
  DARK  = :dark
  LIGHT = :light

  def terminal_app
    theme = `/usr/libexec/PlistBuddy -c "Print :'Default Window Settings'" ~/Library/Preferences/com.apple.Terminal.plist`.chomp
    blob = `/usr/libexec/PlistBuddy -c "Print :'Window Settings':'#{theme}':BackgroundColor" ~/Library/Preferences/com.apple.Terminal.plist`.chomp