def prepare(self, found_files, args, adaptors):
linter = ProspectorLinter(found_files)
linter.load_default_plugins()
extra_sys_path = found_files.get_minimal_syspath()
# create a list of packages, but don't include packages which are
# subpackages of others as checks will be duplicated
packages = [p.split(os.path.sep) for p in found_files.iter_package_paths(abspath=False)]
packages.sort(key=len)
check_paths = set()
for package in packages:
package_path = os.path.join(*package)
if len(package) == 1:
check_paths.add(package_path)
continue
for i in range(1, len(package)):
if os.path.join(*package[:-i]) in check_paths:
break
else:
check_paths.add(package_path)
for filepath in found_files.iter_module_paths(abspath=False):
package = os.path.dirname(filepath).split(os.path.sep)
for i in range(0, len(package)):
if os.path.join(*package[:i+1]) in check_paths:
break
else:
check_paths.add(filepath)
check_paths = [found_files.to_absolute_path(p) for p in check_paths]
# insert the target path into the system path to get correct behaviour
self._orig_sys_path = sys.path
# note: we prepend, so that modules are preferentially found in the
# path given as an argument. This prevents problems where we are
# checking a module which is already on sys.path before this
# manipulation - for example, if we are checking 'requests' in a local
# checkout, but 'requests' is already installed system wide, pylint
# will discover the system-wide modules first if the local checkout
# does not appear first in the path
sys.path = list(extra_sys_path) + sys.path
for adaptor in adaptors:
adaptor.adapt_pylint(linter)
self._args = linter.load_command_line_configuration(check_paths)
# The warnings about disabling warnings are useful for figuring out
# with other tools to suppress messages from. For example, an unused
# import which is disabled with 'pylint:disable=W0611' will still
# generate an 'FL0001' unused import warning from pyflakes. Using the
# information from these messages, we can figure out what was disabled.
linter.disable('I0011') # notification about disabling a message
linter.disable('I0012') # notification about enabling a message
linter.enable('I0013') # notification about disabling an entire file
linter.enable('I0020') # notification about a message being supressed
linter.disable('I0021') # notification about message supressed which was not raised
linter.disable('I0022') # notification about use of deprecated 'pragma' option
# disable the 'mixed indentation' warning, since it actually will only allow
# the indentation specified in the pylint configuration file; we replace it
# instead with our own version which is more lenient and configurable
linter.disable('W0312')
indent_checker = IndentChecker(linter)
linter.register_checker(indent_checker)
# we don't want similarity reports right now
linter.disable('similarities')
# use the collector 'reporter' to simply gather the messages
# given by PyLint
self._collector = Collector()
linter.set_reporter(self._collector)
for checker in linter.get_checkers():
if not hasattr(checker, 'options'):
continue
for option in checker.options:
if args.max_line_length is not None:
if option[0] == 'max-line-length':
checker.set_option('max-line-length', args.max_line_length)
self._linter = linter
