def computeModuleFolders(self, cx, module):
buildBase = self.getBuildFolder(cx)
buildPath = os.path.join(cx.buildPath, buildBase)
if module.context.sourceFolder == '' and cx.sourceFolder == '':
# Special degenerate case that fails os.path.relpath().
subfolder = ''
elif paths.IsSubPath(module.context.sourceFolder, cx.sourceFolder):
# If this module is a subpath of the original context, we use the difference.
subfolder = os.path.relpath(module.context.sourceFolder,
cx.sourceFolder)
if subfolder == '.':
subfolder = ''
else:
# Otherwise... do our best approximation and use a replica of the source
# folder path. This is not ideal since we could have a collision, if for
# example we compile:
# toplevel/module1/crab.cc -> toplevel/toplevel.so/module1/crab.o
# module1/crab.cc -> toplevel/toplevel.so/module1/crab.o
#
# This is bad organization on the project's part, so hopefully we don't
# have to make a workaround for it.
subfolder = module.context.sourceFolder
# Local is relative to the context of the module. buildFolder is relative
# to the build root.
localFolder = os.path.normpath(
os.path.join(self.localFolder, subfolder))
buildFolder = os.path.normpath(os.path.join(buildBase, subfolder))
buildPath = os.path.normpath(os.path.join(buildPath, subfolder))
return localFolder, buildFolder, buildPath
def runBuildScriptImpl(self, parent, path, vars):
assert isinstance(path, util.StringType())
if parent is not self.contextStack_[-1]:
raise Exception(
'Can only create child build contexts of the currently active context'
)
sourceFolder, buildFolder, scriptFile = self.computeScriptPaths(
parent, path)
# Get the absolute script path.
scriptPath = os.path.join(self.sourcePath, scriptFile)
self.generator.addConfigureFile(parent, scriptPath)
# Make the new context. We allow top-level contexts in the root build
# and otherwise for absolute paths.
if isinstance(parent, RootBuildContext) or \
(isinstance(parent, TopLevelBuildContext) and path.startswith('/')):
constructor = TopLevelBuildContext
else:
if not paths.IsSubPath(sourceFolder, parent.sourceFolder):
raise Exception(
"Nested build contexts must be within the same folder structure"
)
constructor = BuildContext
cx = constructor(cm=self,
parent=parent,
vars=vars,
script=scriptPath,
sourceFolder=sourceFolder,
buildFolder=buildFolder)
scriptGlobals = self.execContext(cx)
return scriptGlobals.get('rvalue', None)
def runTest(self):
self.assertEqual(paths.IsSubPath("/a/b/c", "/a"), True)
self.assertEqual(paths.IsSubPath("/t/b/c", "/a"), False)
self.assertEqual(paths.IsSubPath("t", "./"), True)
self.assertEqual(paths.IsSubPath(r"C:\blah", "C:\\", ntpath), True)
self.assertEqual(paths.IsSubPath(r"C:\blah", "D:\\", ntpath), False)
