Class: Heapy::CLI

Inherits:

Object

• Object
• Heapy::CLI

Defined in:

lib/heapy.rb

Instance Method Summary

• #help ⇒ Object
• #initialize(argv) ⇒ CLI constructor

  A new instance of CLI.

• #run ⇒ Object

Constructor Details

#initialize(argv) ⇒ CLI

Returns a new instance of CLI.

# File 'lib/heapy.rb', line 8

def initialize(argv)
  @cmd    = argv.shift
  @file   = argv.shift
  @number = argv.shift
  @args   = argv
end

Instance Method Details

#help ⇒ Object

# File 'lib/heapy.rb', line 15

def help
  puts "$ heapy read <file|command> <number>\n\nWhen run with only a file, it will output the generation and count pairs:\n\n  $ heapy read tmp/2015-09-30-heap.dump\nGeneration: nil object count: 209191\nGeneration:  14 object count: 407\nGeneration:  15 object count: 638\nGeneration:  16 object count: 748\nGeneration:  17 object count: 1023\nGeneration:  18 object count: 805\n\nWhen run with a file and a number it will output detailed information for that\ngeneration:\n\n  $ heapy read tmp/2015-09-30-heap.dump 17\n\nAnalyzing Heap (Generation: 17)\n-------------------------------\n\nallocated by memory (44061517) (in bytes)\n==============================\n  39908512  /app/vendor/ruby-2.2.3/lib/ruby/2.2.0/timeout.rb:79\n   1284993  /app/vendor/ruby-2.2.3/lib/ruby/2.2.0/openssl/buffering.rb:182\n201068  /app/vendor/bundle/ruby/2.2.0/gems/json-1.8.3/lib/json/common.rb:223\n189272  /app/vendor/bundle/ruby/2.2.0/gems/newrelic_rpm-3.13.2.302/lib/new_relic/agent/stats_engine/stats_hash.rb:39\n172531  /app/vendor/ruby-2.2.3/lib/ruby/2.2.0/net/http/header.rb:172\n 92200  /app/vendor/bundle/ruby/2.2.0/gems/activesupport-4.2.3/lib/active_support/core_ext/numeric/conversions.rb:131\n"
end

#run ⇒ Object

# File 'lib/heapy.rb', line 48

def run

  case @cmd
  when "--help"
    help
  when nil
    help
  when "read"
    if @number
      Analyzer.new(@file).drill_down(@number)
    else
      Analyzer.new(@file).analyze
    end
  else
    help
  end
end