def Run(args,
errexit=True,
redirect_stdout=None,
redirect_stderr=None):
""" Run: Run a command.
Returns: return_code, stdout, stderr
Run() is used to invoke "other" tools, e.g.
those NOT prefixed with "pnacl-"
stdout and stderr only contain meaningful data if
redirect_{stdout,stderr} == subprocess.PIPE
Run will terminate the program upon failure unless errexit == False
TODO(robertm): errexit == True has not been tested and needs more work
redirect_stdout and redirect_stderr are passed straight
to subprocess.Popen
"""
result_stdout = None
result_stderr = None
if isinstance(args, str):
args = shell.split(env.eval(args))
args = [pathtools.tosys(args[0])] + args[1:]
Log.Info('Running: ' + StringifyCommand(args))
if env.getbool('DRY_RUN'):
if redirect_stderr or redirect_stdout:
# TODO(pdox): Prevent this from happening, so that
# dry-run is more useful.
Log.Fatal("Unhandled dry-run case.")
return 0, None, None
try:
# If we have too long of a cmdline on windows, running it would fail.
# Attempt to use a file with the command line options instead in that case.
if ArgsTooLongForWindows(args):
actual_args = ConvertArgsToFile(args)
Log.Info('Wrote long commandline to file for Windows: ' +
StringifyCommand(actual_args))
else:
actual_args = args
p = subprocess.Popen(actual_args,
stdout=redirect_stdout,
stderr=redirect_stderr)
result_stdout, result_stderr = p.communicate()
except Exception, e:
msg = '%s\nCommand was: %s' % (str(e), StringifyCommand(args))
print(msg)
DriverExit(1)
def ParseError(s, leftpos, rightpos, msg):
Log.Error("Parse Error: %s", msg)
Log.Error(' ' + s)
Log.Error(' ' + (' ' * leftpos) + ('^' * (rightpos - leftpos + 1)))
DriverExit(1)
print msg
DriverExit(1)
Log.Info('Return Code: ' + str(p.returncode))
if errexit and p.returncode != 0:
if redirect_stdout == subprocess.PIPE:
Log.Error('--------------stdout: begin')
Log.Error(result_stdout)
Log.Error('--------------stdout: end')
if redirect_stderr == subprocess.PIPE:
Log.Error('--------------stderr: begin')
Log.Error(result_stderr)
Log.Error('--------------stderr: end')
DriverExit(p.returncode)
return p.returncode, result_stdout, result_stderr
def IsWindowsPython():
return 'windows' in platform.system().lower()
def SetupCygwinLibs():
bindir = env.getone('DRIVER_BIN')
# Prepend the directory containing cygwin1.dll etc. to the PATH to ensure we
# get the right one.
os.environ['PATH'] = os.pathsep.join(
[pathtools.tosys(bindir)] + os.environ['PATH'].split(os.pathsep))
