Class: SleipnirAPI::CLI::Grepnir

Inherits:
Base
  • Object
show all
Defined in:
lib/sleipnir_api/cli/grepnir.rb

Overview

:nodoc:

Defined Under Namespace

Classes: Action

Constant Summary collapse

DEFAULT_ARGUMENTS = 
%W(-A -T -S)

Instance Method Summary collapse

Methods inherited from Base

#done!, #execute, #execute0, #prepare, #stderr, #stdin, #stdout

Constructor Details

#initialize(*args) ⇒ Grepnir

Returns a new instance of Grepnir.



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# File 'lib/sleipnir_api/cli/grepnir.rb', line 75

def initialize(*args)
  super(*args)
  @action = Action.new(self)
end

Instance Method Details

#argument_processor(ctx) ⇒ Object 



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# File 'lib/sleipnir_api/cli/grepnir.rb', line 94

def argument_processor(ctx)
  Proc.new do |opt|
    opt.banner = "Usage: grepnir [OPTION]... PATTERN..."

    opt.separator ""
    opt.separator "  Sleipnir control:"
    opt.on("-A", "--[no-]activate", "activate 1st matched tab") {|v|
      ctx.action.activate = v }
    opt.on("-T", "--[no-]title-star", "add star '*' to title") {|v|
      ctx.action.title_star = v }
    opt.on("-L", "--[no-]lock", "navigate lock for each matched tab") {|v|
      ctx.action.lock = v }
    opt.on("-H", "--[no-]hilight", "hilight to distinguish the matched text") {|v|
      ctx.action.hilight = v }
    opt.on("-S", "--[no-]search", "search and select matched text") {|v|
      ctx.action.search = v }

    opt.separator ""
    opt.separator "  Match control:"
    opt.on("-v", "--invert-match", "select non-matching tabs") {
      ctx.invert_match = true }
    opt.on("-l", "--only-locked-tab", "search navigate lock tabs only") {|v|
      ctx.only_locked_tab = true }
    opt.on("--include=PATTERN", "URLs that match PATTERN will be examined") {|v|
      ctx.includes << v }
    opt.on("--exclude=PATTERN", "URLs that match PATTERN will be skipped") {|v|
      ctx.excludes << v }

    opt.separator ""
    opt.separator "  Miscellaneous:"
    opt.on("-V", "--version", "print version information and exit") {
      stdout.puts "grepnir #{SleipnirAPI::VERSION::STRING}"
      done!(0)
    }
    opt.on("-h", "--help", "print this help and exit") {
      stdout.puts opt
      done!(0)
    }

    opt.separator ""
    opt.separator "  Default options:"
    opt.separator "    #{DEFAULT_ARGUMENTS * ' '}"

    opt.parse!
  end
end

#initialize_context(ctx) ⇒ Object 



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# File 'lib/sleipnir_api/cli/grepnir.rb', line 80

def initialize_context(ctx)
  ctx.action = OpenStruct.new
  ctx.flag = OpenStruct.new
  ctx.scope = OpenStruct.new.instance_eval {
    self.app = {}
    self.req = {}
    self.tab = {}
    self
  }
  ctx.action.output = true
  ctx.includes = []
  ctx.excludes = []
end

#perform(ctx, pnir) ⇒ Object 



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# File 'lib/sleipnir_api/cli/grepnir.rb', line 170

def perform(ctx, pnir)
  r = false
  ctx.scope.req.clear
  pnir.each do |tab|
    next unless target_tab?(ctx, tab)
    ctx.scope.tab.clear
    tab.document {|doc|
      text = doc.body.innerText rescue next
      matched = ctx.keyword_re.all?{|re| re.match(text) }
      matched = !matched if ctx.invert_match
      @action.run(ctx, pnir, tab, doc, text, matched)
      r = true if matched
    }
  end
  r
end

#process_arguments(ctx, args) ⇒ Object 



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# File 'lib/sleipnir_api/cli/grepnir.rb', line 150

def process_arguments(ctx, args)
  proc = argument_processor(ctx)

  defaults = DEFAULT_ARGUMENTS.dup.extend(OptionParser::Arguable)
  defaults.options(&proc)

  args.options(&proc)
  if args.empty?
    stderr.puts "missing PATTERN"
    stderr.puts args.options
    done!(2)
  end

  ctx.keywords = args.dup
  ctx.keyword_re = ctx.keywords.map{|e| /#{Regexp.quote(e)}/i }

  ctx.include_re = Regexp.union(*ctx.includes)
  ctx.exclude_re = Regexp.union(*ctx.excludes)
end

#target_tab?(ctx, tab) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sleipnir_api/cli/grepnir.rb', line 141

def target_tab?(ctx, tab)
  return false if ctx.only_locked_tab and not tab.navigate_lock?
  url = tab.document.URL
  return false if ctx.exclude_re.match(url)
  return true if ctx.includes.empty?
  return true if ctx.include_re.match(url)
  false
end