Brian J. Cardiff bcardiff

crystal-env

This shard provides environment detection. The selected environment is configured using CRYSTAL_ENV environment variable.

Installation

Add this to your application's shard.yml:

dependencies:

$ brew install imagemagick
$ brew install tesseract
$ ls -l1
Basic Infrastructure.pdf
extract.rb

$ ruby extract.rb 2> /dev/null
extracting page 1
.....................

This sample show how to attach globally to events over dynamically created elements. And how can data-* attributes be used to customize behaviour.

	abstract class Logger2
	enum Severity
	DEBUG
	INFO
	end

	abstract def log(severity : Severity, message, context : String)

	macro bind(*, context = nil, forward = nil)
	struct LoggerBinding

	module Logger2
	enum Severity
	DEBUG
	INFO
	end

	abstract def log(severity, message, context)

	macro using(context, forward = nil)
	getter logger : Logger2?

	struct NamedTuple
	macro map_keys(tuple, properties)
	{% begin %}
	%tuple = {{tuple}}
	NamedTuple.new(
	{% for key, value in properties %}
	{{value.id}}: %tuple[{{key.symbolize}}],
	{% end %}
	)
	{% end %}

	local action = json.parse(request.body).config.action

	http.request {
	url = 'https://hooks.slack.com/services/...',
	method = 'POST',
	data = json.stringify({text = 'Action: '..action})
	}

	return 200

	unless ARGV.size > 0
	puts " Missing executable file argument"
	puts " Usage (in a Dockerfile)"
	puts " RUN crystal run ./path/to/list-deps.cr -- ./bin/executable"
	exit 1
	end

	executable = File.expand_path(ARGV[0])

	unless File.exists?(executable)

	require "json"

	struct Slice(T)
	def to_json(json : JSON::Builder)
	json.array do
	each do \|e\|
	e.to_json(json)
	end
	end
	end

	require "pg"

	# start a posgress
	# $ docker run --name mypg -e POSTGRES_DB=crystal -e POSTGRES_USER=postgress -e POSTGRES_PASSWORD= -p 5432:5432 postgres:9.5
	# <ctrl+c> to stop server

	# restart it
	# $ docker start -a mypg
	# <ctrl+c> to stop server