1#!/usr/bin/env python 2# Copyright 2015 the V8 project authors. All rights reserved. 3# Use of this source code is governed by a BSD-style license that can be 4# found in the LICENSE file. 5 6"""Adaptor script called through build/isolate.gypi. 7 8Slimmed down version of chromium's isolate driver that doesn't process dynamic 9dependencies. 10""" 11 12import json 13import logging 14import os 15import subprocess 16import sys 17 18TOOLS_DIR = os.path.dirname(os.path.abspath(__file__)) 19 20 21def prepare_isolate_call(args, output): 22 """Gathers all information required to run isolate.py later. 23 24 Dumps it as JSON to |output| file. 25 """ 26 with open(output, 'wb') as f: 27 json.dump({ 28 'args': args, 29 'dir': os.getcwd(), 30 'version': 1, 31 }, f, indent=2, sort_keys=True) 32 33def rebase_directories(args, abs_base): 34 """Rebases all paths to be relative to abs_base.""" 35 def replace(index): 36 args[index] = os.path.relpath(os.path.abspath(args[index]), abs_base) 37 for i, arg in enumerate(args): 38 if arg in ['--isolate', '--isolated']: 39 replace(i + 1) 40 if arg == '--path-variable': 41 # Path variables have a triple form: --path-variable NAME <path>. 42 replace(i + 2) 43 44def main(): 45 logging.basicConfig(level=logging.ERROR, format='%(levelname)7s %(message)s') 46 if len(sys.argv) < 2: 47 print >> sys.stderr, 'Internal failure; mode required' 48 return 1 49 mode = sys.argv[1] 50 args = sys.argv[1:] 51 isolate = None 52 isolated = None 53 for i, arg in enumerate(args): 54 if arg == '--isolate': 55 isolate = i + 1 56 if arg == '--isolated': 57 isolated = i + 1 58 if not isolate or not isolated: 59 print >> sys.stderr, 'Internal failure' 60 return 1 61 62 # Make sure all paths are relative to the isolate file. This is an 63 # expectation of the go binaries. In gn, this script is not called 64 # relative to the isolate file, but relative to the product dir. 65 new_base = os.path.abspath(os.path.dirname(args[isolate])) 66 rebase_directories(args, new_base) 67 assert args[isolate] == os.path.basename(args[isolate]) 68 os.chdir(new_base) 69 70 # In 'prepare' mode just collect all required information for postponed 71 # isolated.py invocation later, store it in *.isolated.gen.json file. 72 if mode == 'prepare': 73 prepare_isolate_call(args[1:], args[isolated] + '.gen.json') 74 return 0 75 76 swarming_client = os.path.join(TOOLS_DIR, 'swarming_client') 77 sys.stdout.flush() 78 return subprocess.call( 79 [sys.executable, os.path.join(swarming_client, 'isolate.py')] + args) 80 81 82if __name__ == '__main__': 83 sys.exit(main()) 84