Find sim/app dir on disk, open in Finder.

find_sim.rb

#!/usr/bin/env ruby

# This script will open the directory with the simulator/app that you specify.
# Usage: 'find_sim plus swa' results finding the iPhone 6 Plus applications directory
# and Swarm.app (for me!)

# If you want just the plus sim: 'find_sim plus'

# Why? Because the dir hierarchy is crazy. This is what it looks like:
# /Users/jeffforbes/Library/Developer/CoreSimulator/Devices/<device guid>/data/Containers/Bundle/Application/<app dir guid>/yourapp.app

def dir_matches(path, sim_name) 
	plist_file = "#{path}/device.plist"
	plist = File.read(plist_file)
	plist.match(/<string>.*[iPhone | iPad](#{sim_name})<\/string>/i) != nil
end

#searches simulator bundle for the app name
def app_matches(path, app_name)
	@path = nil
	Dir.entries(path).each() do |entry|
		if entry.start_with?('.') then
			next
		end

		full_entry_path = "#{path}/#{entry}"
		if Dir.exist?(full_entry_path) then
			Dir.entries(full_entry_path).each() do |app_bundle|
				if app_bundle.match(/.*#{app_name}.*.app/i) then
					@path = full_entry_path
					break
				end
			end

		end
	end
	@path
end

@ios_sim = nil
@app = nil

if (ARGV.length < 1) then
	puts "usage: find_sim <device suffix e.g. '5' or '6'> <app name>"
	exit 1
end

@ios_sim = ARGV[0]
@app = ARGV[1]

@sim_dir = File.expand_path('~/Library/Developer/CoreSimulator/Devices')
@applications_path = 'data/Containers/Bundle/Application/'
if !Dir.exist?(@sim_dir) then
	puts 'error: no developer dir found'
	exit 1
end

Dir.entries(@sim_dir).each() do |entry|
	if (entry.start_with?('.')) then
		next
	end

	full_dir = "#{@sim_dir}/#{entry}"
	if Dir.exist?(full_dir) then
		if dir_matches(full_dir, @ios_sim)
			full_apps_path = "#{full_dir}/#{@applications_path}"
			if [email protected]? then
				app_path = app_matches(full_apps_path, @app)
				if (app_path) then
					system("open #{app_path}")
					exit 0
				else
					puts "error: couldn't find #{@app}, but could find sim"
					exit 1
				end
			else
				system("open #{full_apps_path}")
				exit 0
			end
		end
	end

end

puts "error: couldn't find sim. :("
exit 1

I just realized I need to do a bit more here -- documents are hosted in a different place. Incoming!