dteoh

Installing mysql2 gem

This is always an annoying process, especially when you are setting up a new computer. I assume you are using macOS + homebrew. I also assume that you want to run an older version of MySQL (although the instructions should be adaptable).

Installing MySQL

$ brew install mysql@5.7 # change the version if needed

dteoh

1. Move mouse cursor to point at a word
2. Press Command + Ctrl + D

dteoh

# This custom relay connection class exists because the built-in connection
# class is broken when max_page_size is used.
#
# See: https://github.com/rmosolgo/graphql-ruby/issues/1109
class CustomArRelationRelayConnection < GraphQL::Relay::BaseConnection
  def cursor_from_node(item)
    cursor_col = item.class.implicit_order_column
    encode(item.send(cursor_col).to_s)
  end

dteoh

$ curl -X OPTIONS -H “Origin: REQUESTER-DOMAIN.com” -H “Access-Control-Request-Method: GET“ -s -v <TARGET URL HERE> 1> /dev/null

dteoh

Assuming that [Conda][1] is used, start by creating an environment for NeoVim:

$ conda create -n neovim36 python=3.6

Fish shell users:

$ source (conda info --root)/etc/fish/conf.d/conda.fish  

dteoh

unused variable this

You can create [objects in ReasonML][1]. For example:

let document = {
  pub title = "My Treatise";
  pub contents = "<a lot of words>"
};

dteoh

A pattern for encoding records with bs-json

If you have a record type like:

type post = {
  title: string,
  body: string,
};

dteoh

[merge]
	tool = vimdiff

[mergetool]
	keepBackup = false
    
[mergetool "vimdiff"]
	cmd = nvim -d $LOCAL $REMOTE $MERGED -c '$wincmd w' -c 'wincmd J'

dteoh

(lldb) expression (void) rb_backtrace()
/Users/dteoh/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/plugin/tmp_restart.rb:22: [BUG] pthread_cond_wait: Invalid argument (EINVAL)
ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin16]

-- Crash Report log information --------------------------------------------
   See Crash Report log file under the one of following:
     * ~/Library/Logs/CrashReporter
     * /Library/Logs/CrashReporter
     * ~/Library/Logs/DiagnosticReports
     * /Library/Logs/DiagnosticReports

dteoh

There is a built-in command line utility caffeinate that can be used to prevent macOS from sleeping.

To prevent macOS from sleeping before a process with given PID exits:

$ caffeinate -w PID

To prevent macOS from sleeping for the next N seconds: