create_snapshot_bin Namespace Reference

Functions
def	BuildOptions ()
def	ProcessOptions (options)
def	CreateTimestampFile (options)
def	Main ()

Function Documentation

BuildOptions()

def create_snapshot_bin.BuildOptions

(

)

Definition at line 16 of file create_snapshot_bin.py.

def BuildOptions():
    result = optparse.OptionParser()
    result.add_option(
        "--executable",
        action="store",
        type="string",
        help="path to snapshot generator executable")
    result.add_option(
        "--snapshot_kind",
        action="store",
        type="string",
        help="kind of snapshot to generate",
        default="core")
    result.add_option(
        "--vm_flag",
        action="append",
        type="string",
        default=[],
        help="pass additional Dart VM flag")
    result.add_option(
        "--vm_output_bin",
        action="store",
        type="string",
        help="output file name into which vm isolate snapshot in binary form " +
        "is generated")
    result.add_option(
        "--vm_instructions_output_bin",
        action="store",
        type="string",
        help="output file name into which vm isolate snapshot in binary form " +
        "is generated")
    result.add_option(
        "--isolate_output_bin",
        action="store",
        type="string",
        help="output file name into which isolate snapshot in binary form " +
        "is generated")
    result.add_option(
        "--isolate_instructions_output_bin",
        action="store",
        type="string",
        help="output file name into which isolate snapshot in binary form " +
        "is generated")
    result.add_option(
        "--script",
        action="store",
        type="string",
        help="Dart script for which snapshot is to be generated")
    result.add_option(
        "--packages",
        action="store",
        type="string",
        help="package config file used to reasolve package: imports.")
    result.add_option(
        "-v",
        "--verbose",
        help='Verbose output.',
        default=False,
        action="store_true")
    result.add_option(
        "--timestamp_file",
        action="store",
        type="string",
        help="Path to timestamp file that will be written",
        default="")
    return result
 
 

CreateTimestampFile()

def create_snapshot_bin.CreateTimestampFile

(

options

)

Definition at line 100 of file create_snapshot_bin.py.

def CreateTimestampFile(options):
    if options.timestamp_file != '':
        dir_name = os.path.dirname(options.timestamp_file)
        if not os.path.exists(dir_name):
            os.mkdir(dir_name)
        open(options.timestamp_file, 'w').close()
 
 

Main()

def create_snapshot_bin.Main

(

)

Definition at line 108 of file create_snapshot_bin.py.

def Main():
    # Parse options.
    parser = BuildOptions()
    (options, args) = parser.parse_args()
    if not ProcessOptions(options):
        parser.print_help()
        return 1
 
    # If there are additional arguments, report error and exit.
    if args:
        parser.print_help()
        return 1
 
    # Setup arguments to the snapshot generator binary.
    script_args = ["--ignore_unrecognized_flags"]
 
    for flag in options.vm_flag:
        script_args.append(flag)
 
    # Pass along the packages if there is one.
    if options.packages:
        script_args.append(''.join(["--packages=", options.packages]))
 
    # First setup the vm isolate and regular isolate snapshot output filename.
    script_args.append(''.join(["--snapshot_kind=", options.snapshot_kind]))
    script_args.append(''.join(["--vm_snapshot_data=", options.vm_output_bin]))
    script_args.append(''.join(
        ["--isolate_snapshot_data=", options.isolate_output_bin]))
 
    if options.vm_instructions_output_bin != None:
        script_args.append(''.join(
            ["--vm_snapshot_instructions=",
             options.vm_instructions_output_bin]))
    if options.isolate_instructions_output_bin != None:
        script_args.append(''.join([
            "--isolate_snapshot_instructions=",
            options.isolate_instructions_output_bin
        ]))
 
    # Finally append the script name if one is specified.
    if options.script:
        script_args.append(options.script)
 
    # Construct command line to execute the snapshot generator binary and invoke.
    command = [options.executable] + script_args
    try:
        utils.RunCommand(
            command,
            outStream=sys.stderr,
            errStream=sys.stderr,
            verbose=options.verbose,
            printErrorInfo=True)
    except Exception as e:
        return -1
 
    # Success, update timestamp file.
    CreateTimestampFile(options)
 
    return 0
 
 

ProcessOptions()

def create_snapshot_bin.ProcessOptions

(

options

)

Definition at line 84 of file create_snapshot_bin.py.

def ProcessOptions(options):
    if not options.executable:
        sys.stderr.write('--executable not specified\n')
        return False
    if not options.snapshot_kind:
        sys.stderr.write('--snapshot_kind not specified\n')
        return False
    if not options.vm_output_bin:
        sys.stderr.write('--vm_output_bin not specified\n')
        return False
    if not options.isolate_output_bin:
        sys.stderr.write('--isolate_output_bin not specified\n')
        return False
    return True