turnidge@google.com
901f5d693c
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@1823 260f80e4-7a28-3924-810f-c04153c831b5
136 lines
3.8 KiB
Python
Executable File
136 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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# for details. All rights reserved. Use of this source code is governed by a
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# BSD-style license that can be found in the LICENSE file.
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# Script to create snapshot files.
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import getopt
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import optparse
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import string
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import subprocess
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import sys
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import utils
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HOST_OS = utils.GuessOS()
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HOST_CPUS = utils.GuessCpus()
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def BuildOptions():
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result = optparse.OptionParser()
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result.add_option("--executable",
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action="store", type="string",
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help="path to snapshot generator executable")
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result.add_option("--output_bin",
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action="store", type="string",
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help="output file name into which snapshot in binary form is generated")
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result.add_option("--input_cc",
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action="store", type="string",
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help="input file name which contains the C buffer template")
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result.add_option("--output",
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action="store", type="string",
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help="output file name into which snapshot in C buffer form is generated")
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result.add_option("--script",
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action="store", type="string",
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help="Dart script for which snapshot is to be generated")
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result.add_option("--url_mapping",
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default=[],
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action="append",
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help="mapping from url to file name, used when generating snapshots")
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result.add_option("-v", "--verbose",
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help='Verbose output.',
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default=False, action="store_true")
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return result
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def ProcessOptions(options):
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if not options.executable:
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sys.stderr.write('--executable not specified\n')
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return False
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if not options.output_bin:
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sys.stderr.write('--output_bin not specified\n')
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return False
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if not options.input_cc:
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sys.stderr.write('--input_cc not specified\n')
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return False
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if not options.output:
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sys.stderr.write('--output not specified\n')
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return False
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return True
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def makeString(input_file):
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result = ' '
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fileHandle = open(input_file, 'rb')
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lineCounter = 0
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for byte in fileHandle.read():
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result += ' %d,' % ord(byte)
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lineCounter += 1
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if lineCounter == 10:
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result += '\n '
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lineCounter = 0
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if lineCounter != 0:
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result += '\n '
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return result
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def makeFile(output_file, input_cc_file, input_file):
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snapshot_cc_text = open(input_cc_file).read()
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snapshot_cc_text = snapshot_cc_text % makeString(input_file)
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open(output_file, 'w').write(snapshot_cc_text)
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return True
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def Main():
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# Parse options.
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parser = BuildOptions()
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(options, args) = parser.parse_args()
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if not ProcessOptions(options):
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parser.print_help()
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return 1
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# If there are additional arguments, report error and exit.
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if args:
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parser.print_help()
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return 1
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# Setup arguments to the snapshot generator binary.
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script_args = []
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# First setup the snapshot output filename.
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script_args.append(''.join([ "--snapshot=", options.output_bin ]))
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# Next setup all url mapping options specified.
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for url_arg in options.url_mapping:
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url_mapping_argument = ''.join(["--url_mapping=", url_arg ])
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script_args.append(url_mapping_argument)
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# Finally append the script name if one is specified.
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if options.script:
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script_args.append(options.script)
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# Construct command line to execute the snapshot generator binary and invoke.
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command = [ options.executable ] + script_args
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if options.verbose:
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print ' '.join(command)
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pipe = subprocess.Popen(command,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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out, error = pipe.communicate()
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if (pipe.returncode != 0):
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print out, error
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print "Snapshot generation failed"
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print "(Command was: '", ' '.join(command), "')"
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return -1
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if not makeFile(options.output, options.input_cc, options.output_bin):
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print "Unable to generate snapshot in C buffer form"
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return -1
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return 0
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if __name__ == '__main__':
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sys.exit(Main())
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