@edgararout fxfactorial

#Every Single Option Under The Sun

optimization level options
automatic crashing options
debug info optionsemit
swift internal options
swift debug/development internal options
linker-specific options
mode options

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

##To Install libwkhtmltox

Clone the wkhtmltopdf repo git clone --recursive https://github.com/wkhtmltopdf/wkhtmltopdf.git
You need the fpm gem to install sudo gem install fpm --no-ri --no-rdoc - it will be installed in /usr/bin so make sure that's in your path.
Checkout the latest release tag IE git checkout tags/0.12.2.
In the directory and run scripts/build.py osx-cocoa-x86-64(this will take a while! You're building Qt)
If you get an error like: error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install_name_tool: can't open file: bin/libwkhtmltox.0.12.2.2.dylib (No such file or directory) all you need to do is match the version in the VERSION file in the base directory to the number between libwkhtmltox. and .dylib of the compiled file in static-build/osx-cocoa-x86-64/app/bin
If you're not on OS X, refer to INSTALL.md in the wkhtmltopdf repo for build instructions.

	#!/usr/bin/env ocaml

	(* Need topfind to make require work, need require to use podge package *)
	#use "topfind"
	#require "podge"

	module U = Yojson.Basic.Util

	let local_phones () =
	Podge.Unix.read_process_output "gandalf -s"

	(* #require "lwt.unix" *)

	(* open Lwt.Infix *)

	(* let () = *)
	(* Lwt_main.at_exit (fun () -> Lwt_io.printl "Ended program"); *)
	(* Lwt_main.run (Lwt_io.printl "Hello world" >>= fun () -> Lwt.fail (failwith "OOOPS!")) *)


	(* https://www.hackerrank.com/challenges/sequence-full-of-colors *)

	This note explains how to build Postgres from source and setup to debug it using LLDB on a Mac. I used this technique to research this article:
	http://patshaughnessy.net/2014/10/13/following-a-select-statement-through-postgres-internals

	1. Shut down existing postgres if necessary - you don’t want to mess up your existing DB or work :)

	$ ps aux \| grep postgres
	pat 456 0.0 0.0 2503812 828 ?? Ss Sun10AM 0:11.59 postgres: stats collector process
	pat 455 0.0 0.0 2649692 2536 ?? Ss Sun10AM 0:05.00 postgres: autovacuum launcher process
	pat 454 0.0 0.0 2640476 304 ?? Ss Sun10AM 0:00.74 postgres: wal writer process
	pat 453 0.0 0.0 2640476 336 ?? Ss Sun10AM 0:00.76 postgres: writer process


	A really simple interpreter to use while learning about monads. Based on
	the paper "Monads for Functional Programming" by Phil Wadler.

	the type of terms:

	> data Term = Con Int
	> \| Div Term Term
	> deriving Show

	root@plex:~# uname -a
	Linux plex 3.13.0 BrandZ virtual linux x86_64 x86_64 x86_64 GNU/Linux
	root@plex:~# /native/usr/bin/uname -a
	SunOS plex 5.11 joyent_20160524T122512Z i86pc i386 i86pc
	root@plex:~# cat /etc/issue
	Ubuntu 14.04.4 LTS \n \l

	root@plex:~# /native/usr/sbin/dtrace -n 'lx-syscall:::entry {@[probefunc] = count()}' -c "ls"
	dtrace: description 'lx-syscall:::entry ' matched 676 probes
	HDHRViewerV2-beta-0.05.zip Music plex.deb src test upgrade-plex

	#!/usr/bin/env ocaml
	#use "topfind"
	#require "findlib"
	#require "astring"

	let requires name =
	try
	let reqs = Findlib.package_property ["native"] name "requires" in
	Astring.String.cuts ~empty:false ~sep:" " reqs
	with Not_found -> []

	let javascript_from_ocaml
	(* Let me do (object%js val count = 10 end) and count becomes a top
	level var count = 10; *)
	?(js_global_values: 'a Js.t option)
	(* of course we want to use js_of_ocaml.ppx by default *)
	?(ocaml_pkgs=["js_of_ocaml.ppx"])
	(* self-explanatory *)
	?(minified=true)
	(* Only include JavaScript, no linking of the Dom API at all, only
	what's limited to the JavaScript language *)