GLI binary scaffold

do_snapshot_gli_crap.rb

#!/usr/bin/env ruby
# -*- encoding : utf-8 -*-

Signal.trap('INT') { exit 1 }

# resolve bin path, ignoring symlinks
require 'pathname'
bin_file = Pathname.new(__FILE__).realpath

# add self to libpath
$LOAD_PATH.unshift File.expand_path('../../lib', bin_file)

require 'gli'
require 'do_snapshot'
require 'do_snapshot/log'
require 'do_snapshot/mail'
require 'do_snapshot/command'

include GLI::App

program_desc '`do_snapshot` able to create and cleanup snapshots on your droplets.'

desc 'Shows the version of the currently installed DoSnapshot gem'
version DoSnapshot::VERSION

subcommand_option_handling :normal
arguments :strict

pre do |global_options, command, options, args|
  # $command = DoSnapshot::Command.new(global_options,
  #                                    %w( digital_ocean_client_id digital_ocean_api_key digital_ocean_access_token ))
  true
end

accept Array do |value|
  value.split(/\s/).map(&:strip)
end

accept Hash do |value|
  result = {}
  value.split(/\s/).each do |pair|
    k,v = pair.split(/:/)
    result[k] = v
  end
  result
end

desc 'DEFAULT. Create and cleanup snapshot\'s'
long_desc <<-LONGDESC
    `do_snapshot` able to create and cleanup snapshots on your droplets.

    You can optionally specify parameters to select or exclude some droplets.

    ### Examples

    Select api version (1, 2):

    $ do_snapshot -a 2

    Set DigitalOcean keys:

    $ do_snapshot --digital_ocean_api_token SOMELONGTOKEN

    Keep latest 5 and cleanup older if maximum is reached, verbose:

    $ do_snapshot -k 5 -c -v

    Keep latest 3 from selected droplet:

    $ do_snapshot --only 123456 --keep 3

    Working with all except selected droplets:

    $ do_snapshot --exclude 123456 123457

    Keep latest 5 snapshots, not create new if we have more, send mail notification instead:

    $ do_snapshot --keep 10 --stop --mail to:[email protected]

    ### Cron example

    0 4 * * 7 /.../bin/do_snapshot -k 5 -m to:TO from:FROM -t address:HOST user_name:LOGIN password:PASSWORD port:2525 -q -c

    ### Advanced options example for MAIL feature:

    --mail to:[email protected] from:[email protected] --smtp address:smtp.gmail.com port:25 user_name:someuser password:somepassword

    For more details look here: https://github.com/benprew/pony

    VERSION: #{DoSnapshot::VERSION}
LONGDESC

command [:s, :c, :snap, :create] do |c|
  c.desc 'Select api version.'
  c.arg_name '1'
  c.flag [:p,:protocol], default_value: 2, type: Numeric

  c.desc 'Select some droplets.'
  c.arg_name '123456 123456 123456'
  c.flag [:o,:only],  default_value: [], type: Array

  c.desc 'Except some droplets.'
  c.arg_name '123456 123456 123456'
  c.flag [:e,:exclude],  default_value: [], type: Array

  c.desc 'How much snapshots you want to keep?'
  c.arg_name '5'
  c.flag [:k,:keep],  default_value: 10, type: Numeric
  c.desc 'Delay between snapshot operation status requests.'
  c.arg_name '5'
  c.flag [:d,:delay], default_value: 10, type: Numeric

  c.desc 'Timeout in sec\'s for events like Power Off or Create Snapshot.'
  c.arg_name '250'
  c.flag :timeout, default_value: 3600, type: Numeric

  c.desc 'Receive mail if fail or maximum is reached.'
  c.arg_name 'to:[email protected]'
  c.flag :mail, type: Hash
  c.desc 'SMTP options.'
  c.arg_name 'user_name:[email protected] password:password'
  c.flag :smtp, type: Hash

  c.desc 'Log file path. By default logging is disabled.'
  c.arg_name '/Users/someone/.do_snapshot/main.log'
  c.flag [:l, :log], type: String

  c.desc 'Cleanup snapshots after create.'
  c.switch [:c,:clean], default_value: true
  c.desc 'Stop creating snapshots if maximum is reached.'
  c.switch [:s,:stop]
  c.desc 'Verbose mode.'
  c.switch [:v,:trace]
  c.desc 'Quiet mode. If don\'t need any messages and in console.'
  c.switch [:q,:quiet]
  c.desc 'DIGITAL_OCEAN_ACCESS_TOKEN. if you can\'t use environment.'
  c.arg_name 'YOURLONGAPITOKEN'
  c.flag :digital_ocean_access_token, type: String

  c.action do |global_options,options,args|
    # $command.snap
    puts global_options
    puts options
    puts args
  end
end

on_error do |exception|
  # Error logic here
  # return false to skip default error handling
  true
end

exit run(ARGV)