Module: DoStuff::Runner

Defined in:
lib/do_stuff/runner.rb

Constant Summary collapse

RED = 
"\033[31;1m"
GREEN = 
"\033[32;1m"
RESET = 
"\033[m"

Class Method Summary collapse

Class Method Details

.edit(file, task_num = nil) ⇒ Object 



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# File 'lib/do_stuff/runner.rb', line 98

def self.edit(file, task_num=nil)
  begin
    pre_tasklist = Tasklist.new(file)
  rescue Tasklist::ParseError => e
    pre_error = e
  end

  run_editor(file, task_num)

  begin
    post_tasklist = Tasklist.new(file)
  rescue Tasklist::ParseError => e
    post_error = e
  end

  if post_error
    if pre_error
      if pre_error.message == post_error.message
        puts "Syntax error unchanged by edit.\n#{pre_error.message}"
      else
        puts "Pre-edit syntax error: #{pre_error.message}"
        puts "Post-edit syntax error: #{post_error.message}"
      end
    else
      puts "New syntax error introduced.\n#{post_error.message}"
    end
    return
  end

  if pre_error && !post_error
    puts "Syntax error fixed by edit."
    return
  end

  # If there were no errors, compare the old tasklist with the new
  # one, finding what was added, removed, and changed.
  added_keys = post_tasklist.tasks.keys - pre_tasklist.tasks.keys
  added_keys.each do |task_num|
    puts "Added ##{task_num}: #{post_tasklist[task_num]}"
  end

  removed_keys = pre_tasklist.tasks.keys - post_tasklist.tasks.keys
  removed_keys.each do |task_num|
    puts "Erased ##{task_num}: #{pre_tasklist[task_num]}"
  end

  old_keys = pre_tasklist.tasks.keys & post_tasklist.tasks.keys
  old_keys.each do |task_num|
    if pre_tasklist[task_num] != post_tasklist[task_num]
      puts "Changed ##{task_num}:"
      puts "#{RED}-#{pre_tasklist[task_num]}#{RESET}"
      puts "#{GREEN}+#{post_tasklist[task_num]}#{RESET}"
    end
  end
end

.execute(*argv) ⇒ Object 



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# File 'lib/do_stuff/runner.rb', line 10

def self.execute(*argv)
  dostuffrc = ENV['HOME'] + '/.do_stuffrc'
  abort "Error: Couldn't find #{dostuffrc}.\nPlease create it and put " +
    "the path to your todo.txt file in it." unless File.exists?(dostuffrc)

  # This will be set by options if we are to change the text of a task.
  edit_target = nil

  taskfile = File.expand_path(File.read(dostuffrc).chomp)
  unless File.exists?(taskfile)
    FileUtils.mkdir_p(File.dirname(taskfile))
    FileUtils.touch(taskfile)
  end

  opts = OptionParser.new do |opts|
    opts.on('-e [TASK NUM]') do |task_num|
      if argv.empty?
        edit(taskfile, task_num)
        exit
      else
        edit_target = task_num
      end
    end

    opts.on('--standalone FILE') do |file|
      if defined?(::DoStuff::Standalone)
        Standalone.save(file)
        puts "#{file} generated successfully! Have fun doing stuff."
        exit
      else
        abort "You're already using a standalone do_stuff script."
      end
    end

    opts.on('-h', '--help') do
      usage
      exit
    end
  end

  begin
    opts.parse!(argv)
  rescue OptionParser::ParseError => e
    abort e.message
  end

  begin
    tasklist = Tasklist.new(taskfile)
  rescue Tasklist::ParseError => e
    abort e.message
  end

  if edit_target
    before_text = tasklist[edit_target]
    tasklist[edit_target] = argv.join(' ')
    tasklist.write!

    if !before_text
      puts "Added ##{edit_target}: #{tasklist[edit_target]}"
    else
      puts "Changed ##{edit_target}:"
      puts "#{RED}-#{before_text}#{RESET}"
      puts "#{GREEN}+#{tasklist[edit_target]}#{RESET}"
    end

    exit
  end

  if argv.length == 0
    tasklist.tasks.sort.each do |num, task|
      puts "#{num}. #{task}"
    end
  elsif argv.length == 1 && argv[0] =~ /^\d+$/
    task_num = argv[0].to_i
    abort "There is no task ##{task_num}." unless tasklist.tasks.key?(task_num)
    task = tasklist[task_num]
    tasklist.delete(task_num)
    tasklist.write!
    puts "Erased ##{task_num}: #{task}"
  else
    # If nothing else matches, treat the arguments as a task description.
    task = argv.join(' ')
    task_num = tasklist.add(task)
    tasklist.write!
    puts "Added ##{task_num}: #{task}"
  end
end

.run_editor(file, task_num = nil) ⇒ Object 



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# File 'lib/do_stuff/runner.rb', line 154

def self.run_editor(file, task_num=nil)
  editor = ENV['EDITOR']

  unless editor
    $stderr.puts "The EDITOR environment variable isn't set (defaulting to vim)."
    editor = 'vim'
  end

  if task_num
    target = File.readlines(file).find_index do |line|
      line.start_with?("#{task_num}. ")
    end

    abort "Could not find task ##{task_num}." unless target
    system(editor, file, "+#{target + 1}")
  else
    system(editor, file)
  end
end

.usage ⇒ Object 



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# File 'lib/do_stuff/runner.rb', line 174

def self.usage
  program = File.basename($0)

  print "usage: \#{program}                      list unfinished tasks\n   \#{program} <task desc>          add a new task\n   \#{program} <task num>           erase task\n   \#{program} -e [task num]        edit task file [and jump to given task]\n   \#{program} -e<task num> <text>  replace task with given text\n   \#{program} -h, --help           show this message\n  EOS\n\n  if defined?(::DoStuff::Standalone)\n    print <<-EOS\n   \#{program} --standalone FILE    generate a standalone version of do_stuff\n    EOS\n  end\nend\n"