Module: Logging

Defined in:
lib/mkmf.rb

Overview

This is a custom logging module. It generates an mkmf.log file when you run your extconf.rb script. This can be useful for debugging unexpected failures.

This module and its associated methods are meant for internal use only.

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.quiet ⇒ Object

Returns the value of attribute quiet



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# File 'lib/mkmf.rb', line 296

def quiet
  @quiet
end

Class Method Details

.log_close ⇒ Object 



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# File 'lib/mkmf.rb', line 270

def self::log_close
  if @log and not @log.closed?
    @log.flush
    @log.close
    @log = nil
  end
end

.log_open ⇒ Object 



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# File 'lib/mkmf.rb', line 245

def self::log_open
  @log ||= File::open(@logfile, 'wb')
  @log.sync = true
end

.logfile(file) ⇒ Object 



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# File 'lib/mkmf.rb', line 265

def self::logfile file
  @logfile = file
  log_close
end

.message(*s) ⇒ Object 



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# File 'lib/mkmf.rb', line 260

def self::message(*s)
  log_open
  @log.printf(*s)
end

.open ⇒ Object 



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# File 'lib/mkmf.rb', line 250

def self::open
  log_open
  $stderr.reopen(@log)
  $stdout.reopen(@log)
  yield
ensure
  $stderr.reopen(@orgerr)
  $stdout.reopen(@orgout)
end

.postpone ⇒ Object 



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# File 'lib/mkmf.rb', line 278

def self::postpone
  tmplog = "mkmftmp#{@postpone += 1}.log"
  open do
    log, *save = @log, @logfile, @orgout, @orgerr
    @log, @logfile, @orgout, @orgerr = nil, tmplog, log, log
    begin
      log.print(open {yield @log})
    ensure
      @log.close if @log and not @log.closed?
      File::open(tmplog) {|t| FileUtils.copy_stream(t, log)} if File.exist?(tmplog)
      @log, @logfile, @orgout, @orgerr = log, *save
      @postpone -= 1
      rm_f tmplog
    end
  end
end