Module: Doing::Util

Extended by:
Util
Included in:
Util
Defined in:
lib/doing/util.rb

Overview

Utilities

Instance Method Summary collapse

Instance Method Details

#args_for_editor(editor) ⇒ Object 



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# File 'lib/doing/util.rb', line 136

def args_for_editor(editor)
  return editor if editor =~ /-\S/

  args = case editor
         when /^(subl|code|mate)$/
           ['-w']
         when /^(vim|mvim)$/
           ['-f']
         else
           []
         end
  "#{editor} #{args.join(' ')}"
end

#deep_merge_hashes(master_hash, other_hash) ⇒ Object

Non-destructive version of deep_merge_hashes! See that method.



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# File 'lib/doing/util.rb', line 51

def deep_merge_hashes(master_hash, other_hash)
  deep_merge_hashes!(master_hash.dup, other_hash)
end

#deep_merge_hashes!(target, overwrite) ⇒ Object

Merges a master hash with another hash, recursively.

master_hash - the "parent" hash whose values will be overridden other_hash - the other hash whose values will be persisted after the merge

This code was lovingly stolen from some random gem: http://gemjack.com/gems/tartan-0.1.1/classes/Hash.html

Thanks to whoever made it.



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# File 'lib/doing/util.rb', line 64

def deep_merge_hashes!(target, overwrite)
  merge_values(target, overwrite)
  merge_default_proc(target, overwrite)
  duplicate_frozen_values(target)

  target
end

#default_editor ⇒ Object 



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# File 'lib/doing/util.rb', line 128

def default_editor
  @default_editor = find_default_editor
end

#duplicable?(obj) ⇒ Boolean 



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# File 'lib/doing/util.rb', line 72

def duplicable?(obj)
  case obj
  when nil, false, true, Symbol, Numeric
    false
  else
    true
  end
end

#duplicate_frozen_values(target) ⇒ Object 



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# File 'lib/doing/util.rb', line 37

def duplicate_frozen_values(target)
  target.each do |key, val|
    target[key] = val.dup if val.frozen? && duplicable?(val)
  end
end

#editor_with_args ⇒ Object 



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# File 'lib/doing/util.rb', line 132

def editor_with_args
  args_for_editor(default_editor)
end

#exec_available(cli) ⇒ Object

Test if command line tool is available



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# File 'lib/doing/util.rb', line 21

def exec_available(cli)
  return false if cli.nil?

  if File.exist?(File.expand_path(cli))
    File.executable?(File.expand_path(cli))
  else
    system "which #{cli}", out: File::NULL, err: File::NULL
  end
end

#find_default_editor(editor_for = 'default') ⇒ Object 



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# File 'lib/doing/util.rb', line 150

def find_default_editor(editor_for = 'default')
  # return nil unless $stdout.isatty || ENV['DOING_EDITOR_TEST']

  if ENV['DOING_EDITOR_TEST']
    return ENV['EDITOR']
  end

  editor_config = Doing.config.settings['editors']

  if editor_config.is_a?(String)
    Doing.logger.warn('Deprecated:', "Please update your configuration, 'editors' should be a mapping. Delete the key and run `doing config --update`.")
    return editor_config
  end

  if editor_config[editor_for]
    editor = editor_config[editor_for]
    # Doing.logger.debug('Editor:', "Using #{editor} from config 'editors->#{editor_for}'")
    return editor unless editor.nil? || editor.empty?
  end

  if editor_for != 'editor' && editor_config['default']
    editor = editor_config['default']
    # Doing.logger.debug('Editor:', "Using #{editor} from config: 'editors->default'")
    return editor unless editor.nil? || editor.empty?
  end

  editor ||= ENV['DOING_EDITOR'] || ENV['GIT_EDITOR'] || ENV['EDITOR']

  unless editor.nil? || editor.empty?
    # Doing.logger.debug('Editor:', "Found editor in environment variables: #{editor}")
    return editor
  end

  Doing.logger.debug('ENV:', 'No EDITOR environment variable, testing available editors')
  editors = %w[vim vi code subl mate mvim nano emacs]
  editors.each do |ed|
    return ed if exec_available(ed)
    Doing.logger.debug('ENV:', "#{ed} not available")
  end

  nil
end

#mergable?(value) ⇒ Boolean 



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# File 'lib/doing/util.rb', line 81

def mergable?(value)
  value.is_a?(Hash)
end

#merge_default_proc(target, overwrite) ⇒ Object 



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# File 'lib/doing/util.rb', line 31

def merge_default_proc(target, overwrite)
  return unless target.is_a?(Hash) && overwrite.is_a?(Hash) && target.default_proc.nil?

  target.default_proc = overwrite.default_proc
end

#merge_values(target, overwrite) ⇒ Object 



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# File 'lib/doing/util.rb', line 85

def merge_values(target, overwrite)
  target.merge!(overwrite) do |_key, old_val, new_val|
    if new_val.nil?
      old_val
    elsif mergable?(old_val) && mergable?(new_val)
      deep_merge_hashes(old_val, new_val)
    else
      new_val
    end
  end
end

#safe_load_file(filename) ⇒ Object 



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# File 'lib/doing/util.rb', line 124

def safe_load_file(filename)
  SafeYAML.load_file(filename) || {}
end

#user_home ⇒ Object 



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# File 'lib/doing/util.rb', line 8

def user_home
  if Dir.respond_to?('home')
    Dir.home
  else
    File.expand_path('~')
  end
end

#write_to_file(file, content, backup: true) ⇒ Object

Write content to a file



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# File 'lib/doing/util.rb', line 104

def write_to_file(file, content, backup: true)
  unless file
    puts content
    return
  end

  file = File.expand_path(file)

  if File.exist?(file) && backup
    # Create a backup copy for the undo command
    FileUtils.cp(file, "#{file}~")
  end

  File.open(file, 'w+') do |f|
    f.puts content
  end

  Hooks.trigger :post_write, file
end