spoved.cr v0.8.5

Various tools/libs for crystal

spoved

Build Status Release Status Latest release

This repository contains shared tools and libraries to help development of crystal libraries easier.

Installation

  1. Add the dependency to your shard.yml:

    dependencies:
      spoved:
        github: spoved/spoved.cr
    
  2. Run shards install

Usage

Spoved::Logger

You can use the spoved_logger to automatically add the logger methods to any class:

require "spoved/logger"

class TestObj
  spoved_logger
end

obj = TestObj.new
obj.logger.debug { "I can log a debug in color now" }

This also adds a class/module level logger:

require "spoved/logger"

module TestModule
  spoved_logger
end

TestModule.logger.debug { "I can log a module debug now" }

Without the bind: true argument it will only create the class/instance methods. When bind is true it will call ::Log.builder.bind and register the IO (STDOUT by default) and Spoved::ColorizedBackend as the backend.

require "spoved/logger"

spoved_logger(bind: true)

Log.debug { "this is an debug msg" }
Log.info { "this is an info msg" }
Log.warn { "this is an warn msg" }
Log.error { "this is an error msg" }
Log.fatal { "this is an fatal msg" }
Log.unknown { "this is an unknown msg" }

Full example:

require "spoved/logger"

module TestModule
  spoved_logger level: :debug, io: STDOUT, bind: true
end

TestModule.logger.debug { "I can log a module debug now" }

Spoved::Api::Client

The Spoved::Api::Client also provides an abstraction wrapper for Halite to make creation of basic api clients easier.

require "spoved/api/client"

client = Spoved::Api::Client.new("jsonplaceholder.typicode.com", scheme: "https", api_path: "")
client.should_not be_nil
resp = client.get("todos/1")
resp["title"] # => "delectus aut autem"

You can also extend it to simplify creation of api clients:

require "spoved/api/client"

class TodoClient < Spoved::Api::Client
  def initialize
    @host = "jsonplaceholder.typicode.com"
  end

  def todo(id)
    client.get("todos/#{id}")
  end
end

client = TodoClient.new
client.todo(1)["title"] # => "delectus aut autem"

Spoved::Cli

This is a semi-useful wrapper for the commander cli util.

First create your main cli class which should inherit from Spoved::Cli::Main:

require "spoved/cli"

class MyCli::Main < Spoved::Cli::Main
  def config(cmd : Commander::Command)
    cmd.use = "my-cli"
    cmd.long = "this is my awesome cli tool"
  end

  # Can override the default run here
  def run(cmd, options, arguments)
    puts cmd.help # => Render help screen
  end
end

You can then add sub commands via annotations to other classes:

@[Spoved::Cli::SubCommand(name: :do_it, descr: "do something")]
class DoItCmd
  @[Spoved::Cli::Command(name: :now, descr: "do it now")]
  def now(cmd, options, arguments)
    puts "doing it now!!!"
  end

  @[Spoved::Cli::Command(name: :later, descr: "do it now")]
  def later(cmd, options, arguments)
    puts "doing it later..."
  end
end

@[Spoved::Cli::Command(name: :dont, descr: "dont do it")]
class DontDoIt
  def run(cmd, options, arguments)
    puts "I WONT DO IT!"
  end
end

Finally you need to add the run to wherever your app entrypoint is:

MyCli::Main.run(ARGV)

Adding flags

You can add new flags by defining them in the flags argument in the annotations:

  @[Spoved::Cli::Command(name: :daemon, descr: "run daemon", flags: [
    {
      name:        "workers",
      short:       "-w",
      long:        "--workers",
      description: "Number of worker fibers",
      default:     1,
      persistent:  true,
    },
  ])]

The opts argument can also be used to shortcut and reuse pre-defined macros that meet the following format (also see arg_macros.cr for common ones):

# macro to be used with opts argument. arg name is defined by: opt_XXXX. Provide XXXX as a symbol to array.
macro opt_id(c)
  {{c}}.flags.add do |flag|
    flag.name = "id"
    flag.short = "-i"
    flag.long = "--id"
    flag.default = ""
    flag.description = "id of element"
  end
end

This macro can then be used:

@[Spoved::Cli::SubCommand(name: :do_it, descr: "do something")]
class DoItCmd
  @[Spoved::Cli::Command(name: :now, descr: "do it now", opts: [:id])]
  def now(cmd, options, arguments)
    puts "doing it now!!!"
  end

  @[Spoved::Cli::Command(name: :later, descr: "do it later", opts: [:id])]
  def later(cmd, options, arguments)
    puts "doing it later..."
  end
end

Contributing

  1. Fork it (https://github.com/spoved/spoved.cr/fork)
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

Contributors

Repository

spoved.cr

Owner
Statistic
  • 7
  • 1
  • 0
  • 16
  • 3
  • 10 months ago
  • April 16, 2019
License

MIT License

Links
Synced at

Wed, 27 Mar 2024 13:46:27 GMT

Languages