wutils.py
author Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
Fri, 03 Jul 2009 14:12:28 +0100
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parent 4584 7f4ee7f84b19
permissions -rw-r--r--
Add doxygen for BridgeHelper
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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import os
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import os.path
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import sys
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import pproc as subprocess
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import shlex
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# WAF modules
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import ccroot
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import Options
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import Utils
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import Logs
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import TaskGen
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import Build
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import re
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# these are set from the main wscript file
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APPNAME=None
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VERSION=None
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bld=None
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#
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# The last part of the path name to use to find the regression traces tarball.
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# path will be APPNAME + '-' + VERSION + REGRESSION_SUFFIX + TRACEBALL_SUFFIX,
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# e.g., ns-3-dev-ref-traces.tar.bz2
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#
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TRACEBALL_SUFFIX = ".tar.bz2"
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def get_command_template(env, arguments=()):
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    cmd = Options.options.command_template or '%s'
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    for arg in arguments:
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        cmd = cmd + " " + arg
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    return cmd
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if hasattr(os.path, "relpath"):
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    relpath = os.path.relpath # since Python 2.6
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else:
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    def relpath(path, start=os.path.curdir):
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        """Return a relative version of a path"""
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        if not path:
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            raise ValueError("no path specified")
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        start_list = os.path.abspath(start).split(os.path.sep)
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        path_list = os.path.abspath(path).split(os.path.sep)
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        # Work out how much of the filepath is shared by start and path.
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        i = len(os.path.commonprefix([start_list, path_list]))
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        rel_list = [os.path.pardir] * (len(start_list)-i) + path_list[i:]
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        if not rel_list:
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            return os.path.curdir
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        return os.path.join(*rel_list)
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def find_program(program_name, env):
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    launch_dir = os.path.abspath(Options.cwd_launch)
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    top_dir = os.path.abspath(Options.launch_dir)
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    found_programs = []
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    for obj in bld.all_task_gen:
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        if not getattr(obj, 'is_ns3_program', False):
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            continue
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        ## filter out programs not in the subtree starting at the launch dir
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        if not (obj.path.abspath().startswith(launch_dir)
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                or obj.path.abspath(env).startswith(launch_dir)):
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            continue
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        name1 = obj.target
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        name2 = os.path.join(relpath(obj.path.abspath(), top_dir), obj.target)
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        names = [name1, name2]
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        found_programs.extend(names)
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        if program_name in names:
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            return obj
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    raise ValueError("program '%s' not found; available programs are: %r"
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                     % (program_name, found_programs))
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def get_proc_env(os_env=None):
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    env = bld.env
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    if sys.platform == 'linux2':
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        pathvar = 'LD_LIBRARY_PATH'
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    elif sys.platform == 'darwin':
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        pathvar = 'DYLD_LIBRARY_PATH'
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    elif sys.platform == 'win32':
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        pathvar = 'PATH'
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    elif sys.platform == 'cygwin':
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        pathvar = 'PATH'
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    elif sys.platform.startswith('freebsd'):
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        pathvar = 'LD_LIBRARY_PATH'
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    else:
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        Logs.warn(("Don't know how to configure "
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                        "dynamic library path for the platform %r;"
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                        " assuming it's LD_LIBRARY_PATH.") % (sys.platform,))
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        pathvar = 'LD_LIBRARY_PATH'        
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    proc_env = dict(os.environ)
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    if os_env is not None:
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        proc_env.update(os_env)
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   103
    if pathvar is not None:
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        if pathvar in proc_env:
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            proc_env[pathvar] = os.pathsep.join(list(env['NS3_MODULE_PATH']) + [proc_env[pathvar]])
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   106
        else:
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            proc_env[pathvar] = os.pathsep.join(list(env['NS3_MODULE_PATH']))
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   108
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    pymoddir = bld.path.find_dir('bindings/python').abspath(env)
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   110
    if 'PYTHONPATH' in proc_env:
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   111
        proc_env['PYTHONPATH'] = os.pathsep.join([pymoddir] + [proc_env['PYTHONPATH']])
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   112
    else:
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        proc_env['PYTHONPATH'] = pymoddir
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   114
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    return proc_env
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   116
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def run_argv(argv, env, os_env=None, cwd=None, force_no_valgrind=False):
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    proc_env = get_proc_env(os_env)
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    if Options.options.valgrind and not force_no_valgrind:
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        if Options.options.command_template:
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            raise Utils.WafError("Options --command-template and --valgrind are conflicting")
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   122
        if not env['VALGRIND']:
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            raise Utils.WafError("valgrind is not installed")
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        argv = [env['VALGRIND'], "--leak-check=full", "--error-exitcode=1"] + argv
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        proc = subprocess.Popen(argv, env=proc_env, cwd=cwd, stderr=subprocess.PIPE)
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        reg = re.compile ('definitely lost: ([^ ]+) bytes')
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        error = False
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        for line in proc.stderr:
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            sys.stderr.write(line)
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            result = reg.search(line)
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            if result is None:
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                continue
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            if result.group(1) != "0":
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                error = True
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        retval = proc.wait()
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   136
        if retval == 0 and error:
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            retval = 1
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   138
    else:
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        try:
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            WindowsError
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   141
        except NameError:
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            retval = subprocess.Popen(argv, env=proc_env, cwd=cwd).wait()
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   143
        else:
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            try:
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                retval = subprocess.Popen(argv, env=proc_env, cwd=cwd).wait()
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            except WindowsError, ex:
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                raise Utils.WafError("Command %s raised exception %s" % (argv, ex))
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    if retval:
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        raise Utils.WafError("Command %s exited with code %i" % (argv, retval))
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    return retval
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   151
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def get_run_program(program_string, command_template=None):
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    """
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    Return the program name and argv of the process that would be executed by
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    run_program(program_string, command_template).
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    """
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    #print "get_run_program_argv(program_string=%r, command_template=%r)" % (program_string, command_template)
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   158
    env = bld.env
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   159
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   160
    if command_template in (None, '%s'):
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        argv = shlex.split(program_string)
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        #print "%r ==shlex.split==> %r" % (program_string, argv)
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   163
        program_name = argv[0]
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   164
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   165
        try:
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            program_obj = find_program(program_name, env)
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   167
        except ValueError, ex:
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   168
            raise Utils.WafError(str(ex))
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   169
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        program_node = program_obj.path.find_or_declare(ccroot.get_target_name(program_obj))
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        #try:
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        #    program_node = program_obj.path.find_build(ccroot.get_target_name(program_obj))
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   173
        #except AttributeError:
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   174
        #    raise Utils.WafError("%s does not appear to be a program" % (program_name,))
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   175
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   176
        execvec = [program_node.abspath(env)] + argv[1:]
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   177
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   178
    else:
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   179
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   180
        program_name = program_string
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   181
        try:
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   182
            program_obj = find_program(program_name, env)
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   183
        except ValueError, ex:
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   184
            raise Utils.WafError(str(ex))
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   185
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   186
        program_node = program_obj.path.find_or_declare(ccroot.get_target_name(program_obj))
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        #try:
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        #    program_node = program_obj.path.find_build(ccroot.get_target_name(program_obj))
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   189
        #except AttributeError:
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   190
        #    raise Utils.WafError("%s does not appear to be a program" % (program_name,))
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   191
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   192
        tmpl = command_template % (program_node.abspath(env),)
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   193
        execvec = shlex.split(tmpl.replace('\\', '\\\\'))
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   194
        #print "%r ==shlex.split==> %r" % (command_template % (program_node.abspath(env),), execvec)
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   195
    return program_name, execvec
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   196
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   197
def run_program(program_string, env, command_template=None, cwd=None):
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   198
    """
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   199
    if command_template is not None, then program_string == program
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   200
    name and argv is given by command_template with %s replaced by the
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   201
    full path to the program.  Else, program_string is interpreted as
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   202
    a shell command with first name being the program name.
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   203
    """
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   204
    dummy_program_name, execvec = get_run_program(program_string, command_template)
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    if cwd is None:
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        if (Options.options.cwd_launch):
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            cwd = Options.options.cwd_launch
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        else:
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            cwd = Options.cwd_launch
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    return run_argv(execvec, env, cwd=cwd)
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def run_python_program(program_string, env):
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    env = bld.env
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    execvec = shlex.split(program_string)
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    if (Options.options.cwd_launch):
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        cwd = Options.options.cwd_launch
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    else:
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        cwd = Options.cwd_launch
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    return run_argv([env['PYTHON']] + execvec, env, cwd=cwd)
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