Class: Renegade::Linters

Inherits:
Object
  • Object
show all
Defined in:
lib/renegade/linters.rb

Overview

Run linters

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(label, extension, exec_command) ⇒ Linters

Returns a new instance of Linters.



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# File 'lib/renegade/linters.rb', line 9

def initialize(label, extension, exec_command)
  # Instance variables
  @label = label
  @extension = extension
  @exec_command = exec_command
  @errors = []
end

Instance Attribute Details

#errors ⇒ Object (readonly)

Returns the value of attribute errors.



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# File 'lib/renegade/linters.rb', line 7

def errors
  @errors
end

Instance Method Details

#append_file_count(files) ⇒ Object

Add the file count to the end of the label



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# File 'lib/renegade/linters.rb', line 30

def append_file_count(files)
  file_size = files.size

  label_count =
    (file_size == 0 || file_size > 1) ? "#{file_size} files" : '1 file'

  @label = "#{@label} (#{label_count})"
end

#exec(files) ⇒ Object 



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# File 'lib/renegade/linters.rb', line 39

def exec(files)
  # http://stackoverflow.com/questions/690151/getting-output-of-system-calls-in-ruby
  stdin, stdout, stderr,
    wait_thread = Open3.popen3(@exec_command + " #{files.join(' ')}")

  @errors.push(stdout.read) if wait_thread.value.exitstatus == 1

  stdin.close
  stdout.close
  stderr.close

  wait_thread.value.exitstatus == 0
end

#filter_files(file_list) ⇒ Object 



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# File 'lib/renegade/linters.rb', line 53

def filter_files(file_list)
  filtered_files = []

  file_list.each do |file|
    filtered_files.push(file) if File.extname(file) == @extension
  end

  filtered_files
end

#run(files) ⇒ Object 



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# File 'lib/renegade/linters.rb', line 17

def run(files)
  files = filter_files(files)
  append_file_count(files)

  # Only run check if there are relevant files being committed
  if files.empty?
    Status.report(@label, true)
  else
    Status.report(@label, exec(files))
  end
end