diff options
Diffstat (limited to 'engine/SCons/Action.py')
| -rw-r--r-- | engine/SCons/Action.py | 41 |
1 files changed, 24 insertions, 17 deletions
diff --git a/engine/SCons/Action.py b/engine/SCons/Action.py index 861db48..b541256 100644 --- a/engine/SCons/Action.py +++ b/engine/SCons/Action.py @@ -98,7 +98,7 @@ way for wrapping up the functions. # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -__revision__ = "src/engine/SCons/Action.py a56bbd8c09fb219ab8a9673330ffcd55279219d0 2019-03-26 23:16:31 bdeegan" +__revision__ = "src/engine/SCons/Action.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan" import os import pickle @@ -211,7 +211,7 @@ def _object_contents(obj): def _code_contents(code, docstring=None): - """Return the signature contents of a code object. + r"""Return the signature contents of a code object. By providing direct access to the code object of the function, Python makes this extremely easy. Hooray! @@ -534,7 +534,7 @@ class ActionBase(object): result = self.get_presig(target, source, env) if not isinstance(result,(bytes, bytearray)): - result = bytearray("",'utf-8').join([ SCons.Util.to_bytes(r) for r in result ]) + result = bytearray(result, 'utf-8') else: # Make a copy and put in bytearray, without this the contents returned by get_presig # can be changed by the logic below, appending with each call and causing very @@ -767,16 +767,22 @@ def _subproc(scons_env, cmd, error = 'ignore', **kw): it'll have to be tweaked to get the full desired functionality. one special arg (so far?), 'error', to tell what to do with exceptions. """ - # allow std{in,out,err} to be "'devnull'" - io = kw.get('stdin') - if is_String(io) and io == 'devnull': - kw['stdin'] = open(os.devnull) - io = kw.get('stdout') - if is_String(io) and io == 'devnull': - kw['stdout'] = open(os.devnull, 'w') - io = kw.get('stderr') - if is_String(io) and io == 'devnull': - kw['stderr'] = open(os.devnull, 'w') + # allow std{in,out,err} to be "'devnull'". This is like + # subprocess.DEVNULL, which does not exist for Py2. Use the + # subprocess one if possible. + # Clean this up when Py2 support is dropped + try: + from subprocess import DEVNULL + except ImportError: + DEVNULL = None + + for stream in 'stdin', 'stdout', 'stderr': + io = kw.get(stream) + if is_String(io) and io == 'devnull': + if DEVNULL: + kw[stream] = DEVNULL + else: + kw[stream] = open(os.devnull, "r+") # Figure out what shell environment to use ENV = kw.get('env', None) @@ -802,7 +808,7 @@ def _subproc(scons_env, cmd, error = 'ignore', **kw): kw['env'] = new_env try: - pobj = subprocess.Popen(cmd, **kw) + pobj = subprocess.Popen(cmd, **kw) except EnvironmentError as e: if error == 'raise': raise # return a dummy Popen instance that only returns error @@ -820,9 +826,10 @@ def _subproc(scons_env, cmd, error = 'ignore', **kw): finally: # clean up open file handles stored in parent's kw for k, v in kw.items(): - if hasattr(v, 'close'): + if inspect.ismethod(getattr(v, 'close', None)): v.close() - return pobj + + return pobj class CommandAction(_ActionAction): @@ -1091,7 +1098,7 @@ class LazyAction(CommandGeneratorAction, CommandAction): def get_parent_class(self, env): c = env.get(self.var) - if is_String(c) and not '\n' in c: + if is_String(c) and '\n' not in c: return CommandAction return CommandGeneratorAction |