Class: LambdaWhenever::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/lambda_whenever/cli.rb

Overview

The CLI class handles command-line interface interactions for the Lambda Whenever tool.

Constant Summary collapse

SUCCESS_EXIT_CODE = 
0
ERROR_EXIT_CODE = 
1

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ CLI

Returns a new instance of CLI.



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# File 'lib/lambda_whenever/cli.rb', line 11

def initialize(args)
  @args = args
  @option = Option.new(args)
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/lambda_whenever/cli.rb', line 9

def args
  @args
end

#option ⇒ Object (readonly)

Returns the value of attribute option.



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# File 'lib/lambda_whenever/cli.rb', line 9

def option
  @option
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/lambda_whenever/cli.rb', line 16

def run
  case option.mode
  when Option::DRYRUN_MODE
    option.validate!
    print_tasks
    Logger.instance.message("Above is your schedule file converted to scheduled tasks; your scheduled tasks was not updated.")
    Logger.instance.message("Run `lambda_whenever --help' for more options.")
  when Option::UPDATE_MODE
    option.validate!
    with_concurrent_modification_handling do
      update_eb_schedules
    end
    Logger.instance.log("write", "scheduled tasks updated")
  when Option::CLEAR_MODE
    with_concurrent_modification_handling do
      clear_tasks
    end
    Logger.instance.log("write", "scheduled tasks cleared")
  when Option::LIST_MODE
    list_tasks
    Logger.instance.message("Above is your scheduled tasks.")
  when Option::PRINT_VERSION_MODE
    print_version
  end

  SUCCESS_EXIT_CODE
rescue Aws::Errors::MissingRegionError
  Logger.instance.fail("missing region error occurred; please use `--region` option or export `AWS_REGION` environment variable.")
  ERROR_EXIT_CODE
rescue Aws::Errors::MissingCredentialsError
  Logger.instance.fail("missing credential error occurred; please specify it with arguments, use shared credentials, or export `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` environment variable")
  ERROR_EXIT_CODE
rescue OptionParser::MissingArgument,
       Option::InvalidOptionException => e

  Logger.instance.fail(e.message)
  ERROR_EXIT_CODE
end