This file is indexed.

/usr/share/pyshared/_pytest/config.py is in python-pytest 2.2.4-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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""" command line options, ini-file and conftest.py processing. """

import py
import sys, os
from _pytest.core import PluginManager
import pytest

def pytest_cmdline_parse(pluginmanager, args):
    config = Config(pluginmanager)
    config.parse(args)
    return config

def pytest_unconfigure(config):
    while 1:
        try:
            fin = config._cleanup.pop()
        except IndexError:
            break
        fin()

class Parser:
    """ Parser for command line arguments. """

    def __init__(self, usage=None, processopt=None):
        self._anonymous = OptionGroup("custom options", parser=self)
        self._groups = []
        self._processopt = processopt
        self._usage = usage
        self._inidict = {}
        self._ininames = []
        self.hints = []

    def processoption(self, option):
        if self._processopt:
            if option.dest:
                self._processopt(option)

    def addnote(self, note):
        self._notes.append(note)

    def getgroup(self, name, description="", after=None):
        """ get (or create) a named option Group.

        :name: unique name of the option group.
        :description: long description for --help output.
        :after: name of other group, used for ordering --help output.
        """
        for group in self._groups:
            if group.name == name:
                return group
        group = OptionGroup(name, description, parser=self)
        i = 0
        for i, grp in enumerate(self._groups):
            if grp.name == after:
                break
        self._groups.insert(i+1, group)
        return group

    def addoption(self, *opts, **attrs):
        """ add an optparse-style option. """
        self._anonymous.addoption(*opts, **attrs)

    def parse(self, args):
        self.optparser = optparser = MyOptionParser(self)
        groups = self._groups + [self._anonymous]
        for group in groups:
            if group.options:
                desc = group.description or group.name
                optgroup = py.std.optparse.OptionGroup(optparser, desc)
                optgroup.add_options(group.options)
                optparser.add_option_group(optgroup)
        return self.optparser.parse_args([str(x) for x in args])

    def parse_setoption(self, args, option):
        parsedoption, args = self.parse(args)
        for name, value in parsedoption.__dict__.items():
            setattr(option, name, value)
        return args

    def addini(self, name, help, type=None, default=None):
        """ add an ini-file option with the given name and description. """
        assert type in (None, "pathlist", "args", "linelist")
        self._inidict[name] = (help, type, default)
        self._ininames.append(name)


class OptionGroup:
    def __init__(self, name, description="", parser=None):
        self.name = name
        self.description = description
        self.options = []
        self.parser = parser

    def addoption(self, *optnames, **attrs):
        """ add an option to this group. """
        option = py.std.optparse.Option(*optnames, **attrs)
        self._addoption_instance(option, shortupper=False)

    def _addoption(self, *optnames, **attrs):
        option = py.std.optparse.Option(*optnames, **attrs)
        self._addoption_instance(option, shortupper=True)

    def _addoption_instance(self, option, shortupper=False):
        if not shortupper:
            for opt in option._short_opts:
                if opt[0] == '-' and opt[1].islower():
                    raise ValueError("lowercase shortoptions reserved")
        if self.parser:
            self.parser.processoption(option)
        self.options.append(option)


class MyOptionParser(py.std.optparse.OptionParser):
    def __init__(self, parser):
        self._parser = parser
        py.std.optparse.OptionParser.__init__(self, usage=parser._usage,
            add_help_option=False)
    def format_epilog(self, formatter):
        hints = self._parser.hints
        if hints:
            s = "\n".join(["hint: " + x for x in hints]) + "\n"
            s = "\n" + s + "\n"
            return s
        return ""

class Conftest(object):
    """ the single place for accessing values and interacting
        towards conftest modules from py.test objects.
    """
    def __init__(self, onimport=None, confcutdir=None):
        self._path2confmods = {}
        self._onimport = onimport
        self._conftestpath2mod = {}
        self._confcutdir = confcutdir

    def setinitial(self, args):
        """ try to find a first anchor path for looking up global values
            from conftests. This function is usually called _before_
            argument parsing.  conftest files may add command line options
            and we thus have no completely safe way of determining
            which parts of the arguments are actually related to options
            and which are file system paths.  We just try here to get
            bootstrapped ...
        """
        current = py.path.local()
        opt = '--confcutdir'
        for i in range(len(args)):
            opt1 = str(args[i])
            if opt1.startswith(opt):
                if opt1 == opt:
                    if len(args) > i:
                        p = current.join(args[i+1], abs=True)
                elif opt1.startswith(opt + "="):
                    p = current.join(opt1[len(opt)+1:], abs=1)
                self._confcutdir = p
                break
        for arg in args + [current]:
            if hasattr(arg, 'startswith') and arg.startswith("--"):
                continue
            anchor = current.join(arg, abs=1)
            if anchor.check(): # we found some file object
                self._path2confmods[None] = self.getconftestmodules(anchor)
                # let's also consider test* dirs
                if anchor.check(dir=1):
                    for x in anchor.listdir("test*"):
                        if x.check(dir=1):
                            self.getconftestmodules(x)
                break
        else:
            assert 0, "no root of filesystem?"

    def getconftestmodules(self, path):
        """ return a list of imported conftest modules for the given path.  """
        try:
            clist = self._path2confmods[path]
        except KeyError:
            if path is None:
                raise ValueError("missing default confest.")
            dp = path.dirpath()
            clist = []
            if dp != path:
                cutdir = self._confcutdir
                if cutdir and path != cutdir and not path.relto(cutdir):
                    pass
                else:
                    conftestpath = path.join("conftest.py")
                    if conftestpath.check(file=1):
                        clist.append(self.importconftest(conftestpath))
                clist[:0] = self.getconftestmodules(dp)
            self._path2confmods[path] = clist
        # be defensive: avoid changes from caller side to
        # affect us by always returning a copy of the actual list
        return clist[:]

    def rget(self, name, path=None):
        mod, value = self.rget_with_confmod(name, path)
        return value

    def rget_with_confmod(self, name, path=None):
        modules = self.getconftestmodules(path)
        modules.reverse()
        for mod in modules:
            try:
                return mod, getattr(mod, name)
            except AttributeError:
                continue
        raise KeyError(name)

    def importconftest(self, conftestpath):
        assert conftestpath.check(), conftestpath
        try:
            return self._conftestpath2mod[conftestpath]
        except KeyError:
            pkgpath = conftestpath.pypkgpath()
            if pkgpath is None:
                _ensure_removed_sysmodule(conftestpath.purebasename)
            self._conftestpath2mod[conftestpath] = mod = conftestpath.pyimport()
            dirpath = conftestpath.dirpath()
            if dirpath in self._path2confmods:
                for path, mods in self._path2confmods.items():
                    if path and path.relto(dirpath) or path == dirpath:
                        assert mod not in mods
                        mods.append(mod)
            self._postimport(mod)
            return mod

    def _postimport(self, mod):
        if self._onimport:
            self._onimport(mod)
        return mod

def _ensure_removed_sysmodule(modname):
    try:
        del sys.modules[modname]
    except KeyError:
        pass

class CmdOptions(object):
    """ holds cmdline options as attributes."""
    def __init__(self, **kwargs):
        self.__dict__.update(kwargs)
    def __repr__(self):
        return "<CmdOptions %r>" %(self.__dict__,)

class Config(object):
    """ access to configuration values, pluginmanager and plugin hooks.  """
    def __init__(self, pluginmanager=None):
        #: command line option values, usually added via parser.addoption(...)
        #: or parser.getgroup(...).addoption(...) calls
        self.option = CmdOptions()
        self._parser = Parser(
            usage="usage: %prog [options] [file_or_dir] [file_or_dir] [...]",
            processopt=self._processopt,
        )
        #: a pluginmanager instance
        self.pluginmanager = pluginmanager or PluginManager(load=True)
        self.trace = self.pluginmanager.trace.root.get("config")
        self._conftest = Conftest(onimport=self._onimportconftest)
        self.hook = self.pluginmanager.hook
        self._inicache = {}
        self._cleanup = []

    @classmethod
    def fromdictargs(cls, option_dict, args):
        """ constructor useable for subprocesses. """
        config = cls()
        # XXX slightly crude way to initialize capturing
        import _pytest.capture
        _pytest.capture.pytest_cmdline_parse(config.pluginmanager, args)
        config._preparse(args, addopts=False)
        config.option.__dict__.update(option_dict)
        for x in config.option.plugins:
            config.pluginmanager.consider_pluginarg(x)
        return config

    def _onimportconftest(self, conftestmodule):
        self.trace("loaded conftestmodule %r" %(conftestmodule,))
        self.pluginmanager.consider_conftest(conftestmodule)

    def _processopt(self, opt):
        if hasattr(opt, 'default') and opt.dest:
            if not hasattr(self.option, opt.dest):
                setattr(self.option, opt.dest, opt.default)

    def _getmatchingplugins(self, fspath):
        allconftests = self._conftest._conftestpath2mod.values()
        plugins = [x for x in self.pluginmanager.getplugins()
                        if x not in allconftests]
        plugins += self._conftest.getconftestmodules(fspath)
        return plugins

    def _setinitialconftest(self, args):
        # capture output during conftest init (#issue93)
        # XXX introduce load_conftest hook to avoid needing to know
        # about capturing plugin here
        capman = self.pluginmanager.getplugin("capturemanager")
        capman.resumecapture()
        try:
            try:
                self._conftest.setinitial(args)
            finally:
                out, err = capman.suspendcapture() # logging might have got it
        except:
            sys.stdout.write(out)
            sys.stderr.write(err)
            raise

    def _initini(self, args):
        self.inicfg = getcfg(args, ["pytest.ini", "tox.ini", "setup.cfg"])
        self._parser.addini('addopts', 'extra command line options', 'args')
        self._parser.addini('minversion', 'minimally required pytest version')

    def _preparse(self, args, addopts=True):
        self._initini(args)
        if addopts:
            args[:] = self.getini("addopts") + args
        self._checkversion()
        self.pluginmanager.consider_preparse(args)
        self.pluginmanager.consider_setuptools_entrypoints()
        self.pluginmanager.consider_env()
        self._setinitialconftest(args)
        self.pluginmanager.do_addoption(self._parser)
        if addopts:
            self.hook.pytest_cmdline_preparse(config=self, args=args)

    def _checkversion(self):
        minver = self.inicfg.get('minversion', None)
        if minver:
            ver = minver.split(".")
            myver = pytest.__version__.split(".")
            if myver < ver:
                raise pytest.UsageError(
                    "%s:%d: requires pytest-%s, actual pytest-%s'" %(
                    self.inicfg.config.path, self.inicfg.lineof('minversion'),
                    minver, pytest.__version__))

    def parse(self, args):
        # parse given cmdline arguments into this config object.
        # Note that this can only be called once per testing process.
        assert not hasattr(self, 'args'), (
                "can only parse cmdline args at most once per Config object")
        self._origargs = args
        self._preparse(args)
        self._parser.hints.extend(self.pluginmanager._hints)
        args = self._parser.parse_setoption(args, self.option)
        if not args:
            args.append(py.std.os.getcwd())
        self.args = args

    def addinivalue_line(self, name, line):
        """ add a line to an ini-file option. The option must have been
        declared but might not yet be set in which case the line becomes the
        the first line in its value. """
        x = self.getini(name)
        assert isinstance(x, list)
        x.append(line) # modifies the cached list inline

    def getini(self, name):
        """ return configuration value from an ini file. If the
        specified name hasn't been registered through a prior ``parse.addini``
        call (usually from a plugin), a ValueError is raised. """
        try:
            return self._inicache[name]
        except KeyError:
            self._inicache[name] = val = self._getini(name)
            return val

    def _getini(self, name):
        try:
            description, type, default = self._parser._inidict[name]
        except KeyError:
            raise ValueError("unknown configuration value: %r" %(name,))
        try:
            value = self.inicfg[name]
        except KeyError:
            if default is not None:
                return default
            if type is None:
                return ''
            return []
        if type == "pathlist":
            dp = py.path.local(self.inicfg.config.path).dirpath()
            l = []
            for relpath in py.std.shlex.split(value):
                l.append(dp.join(relpath, abs=True))
            return l
        elif type == "args":
            return py.std.shlex.split(value)
        elif type == "linelist":
            return [t for t in map(lambda x: x.strip(), value.split("\n")) if t]
        else:
            assert type is None
            return value

    def _getconftest_pathlist(self, name, path=None):
        try:
            mod, relroots = self._conftest.rget_with_confmod(name, path)
        except KeyError:
            return None
        modpath = py.path.local(mod.__file__).dirpath()
        l = []
        for relroot in relroots:
            if not isinstance(relroot, py.path.local):
                relroot = relroot.replace("/", py.path.local.sep)
                relroot = modpath.join(relroot, abs=True)
            l.append(relroot)
        return l

    def _getconftest(self, name, path=None, check=False):
        if check:
            self._checkconftest(name)
        return self._conftest.rget(name, path)

    def getvalue(self, name, path=None):
        """ return ``name`` value looked set from command line options.

        (deprecated) if we can't find the option also lookup
        the name in a matching conftest file.
        """
        try:
            return getattr(self.option, name)
        except AttributeError:
            return self._getconftest(name, path, check=False)

    def getvalueorskip(self, name, path=None):
        """ (deprecated) return getvalue(name) or call
        py.test.skip if no value exists. """
        __tracebackhide__ = True
        try:
            val = self.getvalue(name, path)
            if val is None:
                raise KeyError(name)
            return val
        except KeyError:
            py.test.skip("no %r value found" %(name,))


def getcfg(args, inibasenames):
    args = [x for x in args if not str(x).startswith("-")]
    if not args:
        args = [py.path.local()]
    for arg in args:
        arg = py.path.local(arg)
        for base in arg.parts(reverse=True):
            for inibasename in inibasenames:
                p = base.join(inibasename)
                if p.check():
                    iniconfig = py.iniconfig.IniConfig(p)
                    if 'pytest' in iniconfig.sections:
                        return iniconfig['pytest']
    return {}

def findupwards(current, basename):
    current = py.path.local(current)
    while 1:
        p = current.join(basename)
        if p.check():
            return p
        p = current.dirpath()
        if p == current:
            return
        current = p