#!/usr/bin/env?python

#?Copyright?（c）?2012?Google?Inc.?All?rights?reserved.
#?Use?of?this?source?code?is?governed?by?a?BSD-style?license?that?can?be
#?found?in?the?LICENSE?file.

__doc__?=?“““
gyptest.py?--?test?runner?for?GYP?tests.
“““

import?os
import?optparse
import?subprocess
import?sys

class?CommandRunner（object）:
??“““
??Executor?class?for?commands?including?“commands“?implemented?by
??Python?functions.
??“““
??verbose?=?True
??active?=?True

??def?__init__（self?dictionary={}）:
????self.subst_dictionary（dictionary）

??def?subst_dictionary（self?dictionary）:
????self._subst_dictionary?=?dictionary

??def?subst（self?string?dictionary=None）:
????“““
????Substitutes?（via?the?format?operator）?the?values?in?the?specified
????dictionary?into?the?specified?command.

????The?command?can?be?an?（action?string）?tuple.??In?all?cases?we
????perform?substitution?on?strings?and?don‘t?worry?if?something?isn‘t
????a?string.??（It‘s?probably?a?Python?function?to?be?executed.）
????“““
????if?dictionary?is?None:
??????dictionary?=?self._subst_dictionary
????if?dictionary:
??????try:
????????string?=?string?%?dictionary
??????except?TypeError:
????????pass
????return?string

??def?display（self?command?stdout=None?stderr=None）:
????if?not?self.verbose:
??????return
????if?type（command）?==?type（（））:
??????func?=?command[0]
??????args?=?command[1:]
??????s?=?‘%s（%s）‘?%?（func.__name__?‘?‘.join（map（repr?args）））
????if?type（command）?==?type（[]）:
??????#?TODO:??quote?arguments?containing?spaces
??????#?TODO:??handle?meta?characters?
??????s?=?‘?‘.join（command）
????else:
??????s?=?self.subst（command）
????if?not?s.endswith（‘\n‘）:
??????s?+=?‘\n‘
????sys.stdout.write（s）
????sys.stdout.flush（）

??def?execute（self?command?stdout=None?stderr=None）:
????“““
????Executes?a?single?command.
????“““
????if?not?self.active:
??????return?0
????if?type（command）?==?type（‘‘）:
??????command?=?self.subst（command）
??????cmdargs?=?shlex.split（command）
??????if?cmdargs[0]?==?‘cd‘:
?????????command?=?（os.chdir）?+?tuple（cmdargs[1:]）
????if?type（command）?==?type（（））:
??????func?=?command[0]
??????args?=?command[1:]
??????return?func（*args）
????else:
??????if?stdout?is?sys.stdout:
????????#?Same?as?passing?sys.stdout?except?python2.4?doesn‘t?fail?on?it.
????????subout?=?None
??????else:
????????#?Open?pipe?for?anything?else?so?Popen?works?on?python2.4.
????????subout?=?subprocess.PIPE
??????if?stderr?is?sys.stderr:
????????#?Same?as?passing?sys.stderr?except?python2.4?doesn‘t?fail?on?it.
????????suberr?=?None
??????elif?stderr?is?None:
????????#?Merge?with?stdout?if?stderr?isn‘t?specified.
????????suberr?=?subprocess.STDOUT
??????else:
????????#?Open?pipe?for?anything?else?so?Popen?works?on?python2.4.
????????suberr?=?subprocess.PIPE
??????p?=?subprocess.Popen（command
???????????????????????????shell=（sys.platform?==?‘win32‘）
???????????????????????????stdout=subout
???????????????????????????stderr=suberr）
??????p.wait（）
??????if?stdout?is?None:
????????self.stdout?=?p