Method: ALib::Util#lspawn

Defined in:
lib/alib-0.5.1/util.rb

#lspawn(cmd, opts = {}) ⇒ Object

–}}}



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# File 'lib/alib-0.5.1/util.rb', line 1377

def lspawn cmd, opts = {}
#--{{{
  begin
    Thread.critical = true

    stdin = ALib::Util::getopt ['stdin', 'i', 'in', '0', 0], opts 
    stdout = ALib::Util::getopt ['stdout', 'o', 'out', '1', 1], opts
    stderr = ALib::Util::getopt ['stderr', 'e', 'err', '2', 2], opts
    expect = ALib::Util::getopt ['expect', 'status', 'success'], opts, 0
    log = Alib::Util::getopt ['logger', 'log'], opts 

    log ||= (self.logger rescue (defined?(@logger) ? @logger : LSPAWN_LOG[0]))

    stdout = LSPAWN_IO.new log, :o, stdout
    stderr = LSPAWN_IO.new log, :e, stderr

    cmdno = LSPAWN_CMDNO[0]

    log.info{ "cmd[#{ cmdno }] <#{ cmd }>" }

    status = Alib::Util::spawn(cmd, 'quiet'=>true, 'raise'=>false, 'stdin'=>stdin, 'stdout'=>stdout, 'stderr'=>stderr)

    exitstatus = ( (status ? (status.exitstatus || 127) : 127) rescue 127 )

    log.send(exitstatus == 0 ? 'info' : 'warn'){ "status[#{ cmdno }] <#{ exitstatus }>" }

    if expect
      codes = [*expect].flatten.compact.map{|code| Integer code}
      success = codes.detect{|code| exitstatus == code}
      unless success
        log.fatal{ "cmd[#{ cmdno }] failure" }
        exit exitstatus
      end
    end

    if status and status.signaled?
      if status.termsig
        log.warn{ "termsig[#{ cmdno }] <#{ status.termsig }>" }
      end
      if status.stopsig
        log.warn{ "stopsig[#{ cmdno }] <#{ status.stopsig }>" }
      end
    end

    exitstatus
  ensure
    LSPAWN_CMDNO[0] = LSPAWN_CMDNO[0] + 1
    Thread.critical = false
  end
#--}}}
end