Class: Terraspace::CLI::Logs

Inherits:
Base
  • Object
show all
Includes:
Concern
Defined in:
lib/terraspace/cli/logs.rb,
lib/terraspace/cli/logs/concern.rb

Defined Under Namespace

Modules: Concern

Instance Method Summary collapse

Methods included from Concern

#pid, #readlines

Methods included from Util::Pretty

#pretty_path, #pretty_time

Methods included from Util::Sure

#sure?

Methods included from Util::Logging

#logger

Constructor Details

#initialize(options = {}) ⇒ Logs

Returns a new instance of Logs.



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# File 'lib/terraspace/cli/logs.rb', line 8

def initialize(options={})
  super
  @action, @stack = options[:action], options[:stack]
  @action ||= '**'
  @stack  ||= '*'
end

Instance Method Details

#all ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 89

def all
  if single_log?
    @options[:all].nil? ? true : @options[:all]
  else # multiple
    @options[:all].nil? ? false : @options[:all]
  end
end

#all_log_paths ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 61

def all_log_paths
  Dir.glob("#{Terraspace.log_root}/#{@action}/#{@stack}.log")
end

#apply_limit(lines) ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 83

def apply_limit(lines)
  return lines if all
  left = limit * -1
  lines[left..-1] || []
end

#check_log! ⇒ Object

Only need to check if both action and stack are provided. Otherwise the Dir.globs are used to discover the files



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# File 'lib/terraspace/cli/logs.rb', line 71

def check_log!
  return unless single_log?
  path = "#{Terraspace.log_root}/#{@action}/#{@stack}.log"
  return if File.exist?(path)
  puts "ERROR: Log file was not found: #{pretty(path)}".color(:red)
  exit 1
end

#check_logs! ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 65

def check_logs!
  return unless all_log_paths.empty?
  puts "WARN: No logs found".color(:yellow)
end

#follow_logs ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 24

def follow_logs
  glob_path = "#{Terraspace.log_root}/#{@action}/#{@stack}.log"
  Dir.glob(glob_path).each do |path|
    puts "Following #{pretty(path)}".color(:purple)
  end
  EventMachine.run do
    interval = Integer(ENV['TS_LOG_GLOB_INTERNAL'] || 1)
    EventMachine::FileGlobWatchTail.new(glob_path, nil, interval) do |filetail, line|
      puts line # always show timestamp in follow mode
    end
  end
end

#format(line) ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 53

def format(line)
  if timestamps
    line
  else
    line.sub(/.*\]: /,'')
  end
end

#limit ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 97

def limit
  @options[:limit].nil? ? 10 : @options[:limit]
end

#pretty(path) ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 108

def pretty(path)
  Terraspace::Util.pretty_path(path)
end

#report_log(path) ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 46

def report_log(path)
  pretty_path = pretty(path)
  if File.exist?(path)
    puts "Showing: #{pretty_path}".color(:purple)
  end
end

#run ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 15

def run
  check_logs!
  if @options[:follow]
    follow_logs
  else
    all_log_paths.each { |path| show_log(path) }
  end
end

#show_log(path) ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 37

def show_log(path)
  report_log(path)
  lines = readlines(path)
  lines = apply_limit(lines)
  lines.each do |line|
    puts format(line)
  end
end

#single_log? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/terraspace/cli/logs.rb', line 79

def single_log?
  @action != '**' && @stack != '*'
end

#timestamps ⇒ Object 



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# File 'lib/terraspace/cli/logs.rb', line 101

def timestamps
  if single_log?
    @options[:timestamps].nil? ? false : @options[:timestamps]
  else
    @options[:timestamps].nil? ? true : @options[:timestamps]
  end
end