# # __COPYRIGHT__ # # Permission is hereby granted, free of charge, to any person obtaining # a copy of this software and associated documentation files (the # "Software"), to deal in the Software without restriction, including # without limitation the rights to use, copy, modify, merge, publish, # distribute, sublicense, and/or sell copies of the Software, and to # permit persons to whom the Software is furnished to do so, subject to # the following conditions: # # The above copyright notice and this permission notice shall be included # in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # """SCons.Errors This file contains the exception classes used to handle internal and user errors in SCons. """ __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__" import SCons.Util import exceptions class BuildError(Exception): """ Errors occuring while building. BuildError have the following attributes: Information about the cause of the build error: ----------------------------------------------- errstr : a description of the error message status : the return code of the action that caused the build error. Must be set to a non-zero value even if the build error is not due to an action returning a non-zero returned code. exitstatus : SCons exit status due to this build error. Must be nonzero unless due to an explicit Exit() call. Not always the same as status, since actions return a status code that should be respected, but SCons typically exits with 2 irrespective of the return value of the failed action. filename : The name of the file or directory that caused the build error. Set to None if no files are associated with this error. This might be different from the target being built. For example, failure to create the directory in which the target file will appear. It can be None if the error is not due to a particular filename. exc_info : Info about exception that caused the build error. Set to (None, None, None) if this build error is not due to an exception. Information about the cause of the location of the error: --------------------------------------------------------- node : the error occured while building this target node(s) executor : the executor that caused the build to fail (might be None if the build failures is not due to the executor failing) action : the action that caused the build to fail (might be None if the build failures is not due to the an action failure) command : the command line for the action that caused the build to fail (might be None if the build failures is not due to the an action failure) """ def __init__(self, node=None, errstr="Unknown error", status=2, exitstatus=2, filename=None, executor=None, action=None, command=None, exc_info=(None, None, None)): self.errstr = errstr self.status = status self.exitstatus = exitstatus self.filename = filename self.exc_info = exc_info self.node = node self.executor = executor self.action = action self.command = command Exception.__init__(self, node, errstr, status, exitstatus, filename, executor, action, command, exc_info) def __str__(self): if self.filename: return self.filename + ': ' + self.errstr else: return self.errstr class InternalError(Exception): pass class UserError(Exception): pass class StopError(Exception): pass class EnvironmentError(Exception): pass class ExplicitExit(Exception): def __init__(self, node=None, status=None, *args): self.node = node self.status = status self.exitstatus = status apply(Exception.__init__, (self,) + args) def convert_to_BuildError(status, exc_info=None): """ Convert any return code a BuildError Exception. `status' can either be a return code or an Exception. The buildError.status we set here will normally be used as the exit status of the "scons" process. """ if not exc_info and isinstance(status, Exception): exc_info = (status.__class__, status, None) if isinstance(status, BuildError): buildError = status buildError.exitstatus = 2 # always exit with 2 on build errors elif isinstance(status, ExplicitExit): status = status.status errstr = 'Explicit exit, status %s' % status buildError = BuildError( errstr=errstr, status=status, # might be 0, OK here exitstatus=status, # might be 0, OK here exc_info=exc_info) # TODO(1.5): #elif isinstance(status, (StopError, UserError)): elif isinstance(status, StopError) or isinstance(status, UserError): buildError = BuildError( errstr=str(status), status=2, exitstatus=2, exc_info=exc_info) elif isinstance(status, exceptions.EnvironmentError): # If an IOError/OSError happens, raise a BuildError. # Report the name of the file or directory that caused the # error, which might be different from the target being built # (for example, failure to create the directory in which the # target file will appear). try: filename = status.filename except AttributeError: filename = None buildError = BuildError( errstr=status.strerror, status=status.errno, exitstatus=2, filename=filename, exc_info=exc_info) elif isinstance(status, Exception): buildError = BuildError( errstr='%s : %s' % (status.__class__.__name__, status), status=2, exitstatus=2, exc_info=exc_info) elif SCons.Util.is_String(status): buildError = BuildError( errstr=status, status=2, exitstatus=2) else: buildError = BuildError( errstr="Error %s" % status, status=status, exitstatus=2) #import sys #sys.stderr.write("convert_to_BuildError: status %s => (errstr %s, status %s)"%(status,buildError.errstr, buildError.status)) return buildError