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from msysutils import msysActive, msysPathToNative
from os import environ
from shlex import split as shsplit
from subprocess import PIPE, STDOUT, Popen
if msysActive():
def fixArgs(args):
for arg in args:
if arg.startswith('-I') or arg.startswith('-L'):
yield arg[ : 2] + msysPathToNative(arg[2 : ])
elif arg.startswith('/'):
yield msysPathToNative(arg)
else:
yield arg
else:
def fixArgs(args):
return iter(args)
class _Command(object):
@classmethod
def fromLine(cls, commandStr, flagsStr):
commandParts = shsplit(commandStr)
flags = shsplit(flagsStr)
env = {}
while commandParts:
if '=' in commandParts[0]:
name, value = commandParts[0].split('=', 1)
del commandParts[0]
env[name] = value
else:
return cls(
env,
commandParts[0],
list(fixArgs(commandParts[1 : ] + flags))
)
else:
raise ValueError('No command specified in "%s"' % commandStr)
def __init__(self, env, executable, flags):
self.__env = env
self.__executable = executable
self.__flags = flags
mergedEnv = dict(environ)
mergedEnv.update(env)
self.__mergedEnv = mergedEnv
def __str__(self):
return ' '.join(
[ self.__executable ] + self.__flags + (
[ '(%s)' % ' '.join(
'%s=%s' % item
for item in sorted(self.__env.iteritems())
) ] if self.__env else []
)
)
def _run(self, log, name, args, inputSeq, captureOutput):
commandLine = [ self.__executable ] + args + self.__flags
try:
proc = Popen(
commandLine,
bufsize = -1,
env = self.__mergedEnv,
stdin = None if inputSeq is None else PIPE,
stdout = PIPE,
stderr = PIPE if captureOutput else STDOUT,
)
except OSError, ex:
print >> log, 'failed to execute %s: %s' % (name, ex)
return None if captureOutput else False
inputText = None if inputSeq is None else '\n'.join(inputSeq) + '\n'
stdoutdata, stderrdata = proc.communicate(inputText)
if captureOutput:
assert stderrdata is not None
messages = stderrdata
else:
assert stderrdata is None
messages = stdoutdata
if messages:
log.write('%s command: %s\n' % (name, ' '.join(commandLine)))
if inputText is not None:
log.write('input:\n')
log.write(inputText)
if not inputText.endswith('\n'):
log.write('\n')
log.write('end input.\n')
# pylint 0.18.0 somehow thinks 'messages' is a list, not a string.
# pylint: disable-msg=E1103
messages = messages.replace('\r', '')
log.write(messages)
if not messages.endswith('\n'):
log.write('\n')
if proc.returncode == 0:
return stdoutdata if captureOutput else True
else:
print >> log, 'return code from %s: %d' % (name, proc.returncode)
return None if captureOutput else False
class CompileCommand(_Command):
__expandSignature = 'EXPAND_MACRO_'
def compile(self, log, sourcePath, objectPath):
return self._run(
log, 'compiler', [ '-c', sourcePath, '-o', objectPath ], None, False
)
def expand(self, log, headers, *keys):
signature = self.__expandSignature
def iterLines():
for header in headers:
yield '#include %s' % header
for key in keys:
yield '%s%s %s' % (signature, key, key)
output = self._run(
log, 'preprocessor', [ '-E', '-' ], iterLines(), True
)
if output is None:
if len(keys) == 1:
return None
else:
return (None, ) * len(keys)
else:
expanded = {}
for line in output.split('\n'):
if line.startswith(signature):
key, value = line[len(signature) : ].split(' ', 1)
value = value.strip()
if key in keys:
if value != key:
expanded[key] = value
else:
log.write(
'Ignoring macro expand signature match on '
'non-requested macro "%s"\n' % key
)
if len(keys) == 1:
return expanded.get(keys[0])
else:
return tuple(expanded.get(key) for key in keys)
class LinkCommand(_Command):
def link(self, log, objectPaths, binaryPath):
return self._run(
log, 'linker', objectPaths + [ '-o', binaryPath ], None, False
)
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