def _do_base_tests(self, rwrepo):
		"""Perform all tests in the given repository, it may be bare or nonbare"""
		# manual instantiation
		smm = Submodule(rwrepo, "\0"*20)
		# name needs to be set in advance
		self.failUnlessRaises(AttributeError, getattr, smm, 'name') 
		
		# iterate - 1 submodule
		sms = Submodule.list_items(rwrepo, self.k_subm_current)
		assert len(sms) == 1
		sm = sms[0]
		
		# at a different time, there is None
		assert len(Submodule.list_items(rwrepo, self.k_no_subm_tag)) == 0
		
		assert sm.path == 'git/ext/gitdb'
		assert sm.path != sm.name					# in our case, we have ids there, which don't equal the path
		assert sm.url == 'git://github.com/gitpython-developers/gitdb.git'
		assert sm.branch_path == 'refs/heads/master'			# the default ...
		assert sm.branch_name == 'master'
		assert sm.parent_commit == rwrepo.head.commit
		# size is always 0
		assert sm.size == 0
		# the module is not checked-out yet
		self.failUnlessRaises(InvalidGitRepositoryError, sm.module)
		
		# which is why we can't get the branch either - it points into the module() repository
		self.failUnlessRaises(InvalidGitRepositoryError, getattr, sm, 'branch')
		
		# branch_path works, as its just a string
		assert isinstance(sm.branch_path, basestring)
		
		# some commits earlier we still have a submodule, but its at a different commit
		smold = Submodule.iter_items(rwrepo, self.k_subm_changed).next()
		assert smold.binsha != sm.binsha
		assert smold != sm					# the name changed
		
		# force it to reread its information
		del(smold._url)
		smold.url == sm.url
		
		# test config_reader/writer methods
		sm.config_reader()
		new_smclone_path = None				# keep custom paths for later 
		new_csmclone_path = None				# 
		if rwrepo.bare:
			self.failUnlessRaises(InvalidGitRepositoryError, sm.config_writer)
		else:
			writer = sm.config_writer()
			# for faster checkout, set the url to the local path
			new_smclone_path = to_native_path_linux(join_path_native(self.rorepo.working_tree_dir, sm.path))
			writer.set_value('url', new_smclone_path)
			del(writer)
			assert sm.config_reader().get_value('url') == new_smclone_path
			assert sm.url == new_smclone_path
		# END handle bare repo
		smold.config_reader()
		
		# cannot get a writer on historical submodules
		if not rwrepo.bare:
			self.failUnlessRaises(ValueError, smold.config_writer)
		# END handle bare repo
		
		# make the old into a new - this doesn't work as the name changed
		prev_parent_commit = smold.parent_commit
		self.failUnlessRaises(ValueError, smold.set_parent_commit, self.k_subm_current)
		# the sha is properly updated
		smold.set_parent_commit(self.k_subm_changed+"~1")
		assert smold.binsha != sm.binsha
		
		# raises if the sm didn't exist in new parent - it keeps its 
		# parent_commit unchanged
		self.failUnlessRaises(ValueError, smold.set_parent_commit, self.k_no_subm_tag)
		
		# TEST TODO: if a path in the gitmodules file, but not in the index, it raises
		
		# TEST UPDATE
		##############
		# module retrieval is not always possible
		if rwrepo.bare:
			self.failUnlessRaises(InvalidGitRepositoryError, sm.module)
			self.failUnlessRaises(InvalidGitRepositoryError, sm.remove)
			self.failUnlessRaises(InvalidGitRepositoryError, sm.add, rwrepo, 'here', 'there')
		else:
			# its not checked out in our case
			self.failUnlessRaises(InvalidGitRepositoryError, sm.module)
			assert not sm.module_exists()
			
			# currently there is only one submodule
			assert len(list(rwrepo.iter_submodules())) == 1
			assert sm.binsha != "\0"*20
			
			# TEST ADD
			###########
			# preliminary tests
			# adding existing returns exactly the existing
			sma = Submodule.add(rwrepo, sm.name, sm.path)
			assert sma.path == sm.path
			
			# no url and no module at path fails
			self.failUnlessRaises(ValueError, Submodule.add, rwrepo, "newsubm", "pathtorepo", url=None)
			
			# CONTINUE UPDATE
			#################
			
			# lets update it - its a recursive one too
			newdir = os.path.join(sm.abspath, 'dir')
			os.makedirs(newdir)
			
			# update fails if the path already exists non-empty
			self.failUnlessRaises(OSError, sm.update)
			os.rmdir(newdir)
			
			# dry-run does nothing
			sm.update(dry_run=True, progress=prog)
			assert not sm.module_exists()
			
			assert sm.update() is sm
			sm_repopath = sm.path				# cache for later
			assert sm.module_exists()
			assert isinstance(sm.module(), git.Repo)
			assert sm.module().working_tree_dir == sm.abspath
			
			# INTERLEAVE ADD TEST
			#####################
			# url must match the one in the existing repository ( if submodule name suggests a new one )
			# or we raise
			self.failUnlessRaises(ValueError, Submodule.add, rwrepo, "newsubm", sm.path, "git://someurl/repo.git")
			
			
			# CONTINUE UPDATE
			#################
			# we should have setup a tracking branch, which is also active
			assert sm.module().head.ref.tracking_branch() is not None
			
			# delete the whole directory and re-initialize
			shutil.rmtree(sm.abspath)
			assert len(sm.children()) == 0
			# dry-run does nothing
			sm.update(dry_run=True, recursive=False, progress=prog)
			assert len(sm.children()) == 0
			
			sm.update(recursive=False)
			assert len(list(rwrepo.iter_submodules())) == 2
			assert len(sm.children()) == 1			# its not checked out yet
			csm = sm.children()[0]
			assert not csm.module_exists()
			csm_repopath = csm.path
			
			# adjust the path of the submodules module to point to the local destination
			new_csmclone_path = to_native_path_linux(join_path_native(self.rorepo.working_tree_dir, sm.path, csm.path))
			csm.config_writer().set_value('url', new_csmclone_path)
			assert csm.url == new_csmclone_path
			
			# dry-run does nothing
			assert not csm.module_exists()
			sm.update(recursive=True, dry_run=True, progress=prog)
			assert not csm.module_exists()
			
			# update recursively again
			sm.update(recursive=True)
			assert csm.module_exists()
			
			# tracking branch once again
			csm.module().head.ref.tracking_branch() is not None
			
			# this flushed in a sub-submodule
			assert len(list(rwrepo.iter_submodules())) == 2
			
			
			# reset both heads to the previous version, verify that to_latest_revision works
			smods = (sm.module(), csm.module())
			for repo in smods:
				repo.head.reset('HEAD~2', working_tree=1)
			# END for each repo to reset
			
			# dry run does nothing 
			sm.update(recursive=True, dry_run=True, progress=prog)
			for repo in smods:
				assert repo.head.commit != repo.head.ref.tracking_branch().commit
			# END for each repo to check
			
			sm.update(recursive=True, to_latest_revision=True)
			for repo in smods:
				assert repo.head.commit == repo.head.ref.tracking_branch().commit
			# END for each repo to check
			del(smods)
			
			# if the head is detached, it still works ( but warns )
			smref = sm.module().head.ref
			sm.module().head.ref = 'HEAD~1'
			# if there is no tracking branch, we get a warning as well
			csm_tracking_branch = csm.module().head.ref.tracking_branch()
			csm.module().head.ref.set_tracking_branch(None)
			sm.update(recursive=True, to_latest_revision=True)
			
			# to_latest_revision changes the child submodule's commit, it needs an
			# update now
			csm.set_parent_commit(csm.repo.head.commit)
			
			# undo the changes
			sm.module().head.ref = smref
			csm.module().head.ref.set_tracking_branch(csm_tracking_branch)
			
			# REMOVAL OF REPOSITOTRY
			########################
			# must delete something
			self.failUnlessRaises(ValueError, csm.remove, module=False, configuration=False)
			# We have modified the configuration, hence the index is dirty, and the
			# deletion will fail
			# NOTE: As we did  a few updates in the meanwhile, the indices were reset
			# Hence we create some changes
			csm.set_parent_commit(csm.repo.head.commit)
			sm.config_writer().set_value("somekey", "somevalue")
			csm.config_writer().set_value("okey", "ovalue")
			self.failUnlessRaises(InvalidGitRepositoryError, sm.remove)
			# if we remove the dirty index, it would work
			sm.module().index.reset()
			# still, we have the file modified
			self.failUnlessRaises(InvalidGitRepositoryError, sm.remove, dry_run=True)
			sm.module().index.reset(working_tree=True)
			
			# enforce the submodule to be checked out at the right spot as well.
			csm.update()
			
			# this would work
			assert sm.remove(dry_run=True) is sm
			assert sm.module_exists()
			sm.remove(force=True, dry_run=True)
			assert sm.module_exists()
			
			# but ... we have untracked files in the child submodule
			fn = join_path_native(csm.module().working_tree_dir, "newfile")
			open(fn, 'w').write("hi")
			self.failUnlessRaises(InvalidGitRepositoryError, sm.remove)
			
			# forcibly delete the child repository
			prev_count = len(sm.children())
			assert csm.remove(force=True) is csm
			assert not csm.exists()
			assert not csm.module_exists()
			assert len(sm.children()) == prev_count - 1
			# now we have a changed index, as configuration was altered.
			# fix this
			sm.module().index.reset(working_tree=True)
			
			# now delete only the module of the main submodule
			assert sm.module_exists()
			sm.remove(configuration=False)
			assert sm.exists()
			assert not sm.module_exists()
			assert sm.config_reader().get_value('url')
			
			# delete the rest
			sm.remove()
			assert not sm.exists()
			assert not sm.module_exists()
			
			assert len(rwrepo.submodules) == 0
			
			# ADD NEW SUBMODULE
			###################
			# add a simple remote repo - trailing slashes are no problem
			smid = "newsub"
			osmid = "othersub"
			nsm = Submodule.add(rwrepo, smid, sm_repopath, new_smclone_path+"/", None, no_checkout=True)
			assert nsm.name == smid
			assert nsm.module_exists()
			assert nsm.exists()
			# its not checked out
			assert not os.path.isfile(join_path_native(nsm.module().working_tree_dir, Submodule.k_modules_file))
			assert len(rwrepo.submodules) == 1
			
			# add another submodule, but into the root, not as submodule
			osm = Submodule.add(rwrepo, osmid, csm_repopath, new_csmclone_path, Submodule.k_head_default)
			assert osm != nsm
			assert osm.module_exists()
			assert osm.exists()
			assert os.path.isfile(join_path_native(osm.module().working_tree_dir, 'setup.py'))
			
			assert len(rwrepo.submodules) == 2
			
			# commit the changes, just to finalize the operation
			rwrepo.index.commit("my submod commit")
			assert len(rwrepo.submodules) == 2
			
			# needs update as the head changed, it thinks its in the history 
			# of the repo otherwise
			nsm.set_parent_commit(rwrepo.head.commit)
			osm.set_parent_commit(rwrepo.head.commit)
			
			# MOVE MODULE
			#############
			# invalid inptu
			self.failUnlessRaises(ValueError, nsm.move, 'doesntmatter', module=False, configuration=False)
			
			# renaming to the same path does nothing
			assert nsm.move(sm.path) is nsm
			
			# rename a module
			nmp = join_path_native("new", "module", "dir") + "/" # new module path
			pmp = nsm.path
			abspmp = nsm.abspath
			assert nsm.move(nmp) is nsm
			nmp = nmp[:-1]			# cut last /
			nmpl = to_native_path_linux(nmp)
			assert nsm.path == nmpl
			assert rwrepo.submodules[0].path == nmpl
			
			mpath = 'newsubmodule'
			absmpath = join_path_native(rwrepo.working_tree_dir, mpath)
			open(absmpath, 'w').write('')
			self.failUnlessRaises(ValueError, nsm.move, mpath)
			os.remove(absmpath)
			
			# now it works, as we just move it back
			nsm.move(pmp)
			assert nsm.path == pmp
			assert rwrepo.submodules[0].path == pmp
			
			# TODO lowprio: test remaining exceptions ... for now its okay, the code looks right
			
			# REMOVE 'EM ALL
			################
			# if a submodule's repo has no remotes, it can't be added without an explicit url
			osmod = osm.module()
			
			osm.remove(module=False)
			for remote in osmod.remotes:
				remote.remove(osmod, remote.name)
			assert not osm.exists()
			self.failUnlessRaises(ValueError, Submodule.add, rwrepo, osmid, csm_repopath, url=None)   
		# END handle bare mode
		
		# Error if there is no submodule file here
		self.failUnlessRaises(IOError, Submodule._config_parser, rwrepo, rwrepo.commit(self.k_no_subm_tag), True)
Example #2
0
    def _do_base_tests(self, rwrepo):
        """Perform all tests in the given repository, it may be bare or nonbare"""
        # manual instantiation
        smm = Submodule(rwrepo, "\0" * 20)
        # name needs to be set in advance
        self.failUnlessRaises(AttributeError, getattr, smm, 'name')

        # iterate - 1 submodule
        sms = Submodule.list_items(rwrepo, self.k_subm_current)
        assert len(sms) == 1
        sm = sms[0]

        # at a different time, there is None
        assert len(Submodule.list_items(rwrepo, self.k_no_subm_tag)) == 0

        assert sm.path == 'git/ext/gitdb'
        assert sm.path != sm.name  # in our case, we have ids there, which don't equal the path
        assert sm.url == 'git://github.com/gitpython-developers/gitdb.git'
        assert sm.branch_path == 'refs/heads/master'  # the default ...
        assert sm.branch_name == 'master'
        assert sm.parent_commit == rwrepo.head.commit
        # size is always 0
        assert sm.size == 0
        # the module is not checked-out yet
        self.failUnlessRaises(InvalidGitRepositoryError, sm.module)

        # which is why we can't get the branch either - it points into the module() repository
        self.failUnlessRaises(InvalidGitRepositoryError, getattr, sm, 'branch')

        # branch_path works, as its just a string
        assert isinstance(sm.branch_path, basestring)

        # some commits earlier we still have a submodule, but its at a different commit
        smold = Submodule.iter_items(rwrepo, self.k_subm_changed).next()
        assert smold.binsha != sm.binsha
        assert smold != sm  # the name changed

        # force it to reread its information
        del (smold._url)
        smold.url == sm.url

        # test config_reader/writer methods
        sm.config_reader()
        new_smclone_path = None  # keep custom paths for later
        new_csmclone_path = None  #
        if rwrepo.bare:
            self.failUnlessRaises(InvalidGitRepositoryError, sm.config_writer)
        else:
            writer = sm.config_writer()
            # for faster checkout, set the url to the local path
            new_smclone_path = to_native_path_linux(
                join_path_native(self.rorepo.working_tree_dir, sm.path))
            writer.set_value('url', new_smclone_path)
            del (writer)
            assert sm.config_reader().get_value('url') == new_smclone_path
            assert sm.url == new_smclone_path
        # END handle bare repo
        smold.config_reader()

        # cannot get a writer on historical submodules
        if not rwrepo.bare:
            self.failUnlessRaises(ValueError, smold.config_writer)
        # END handle bare repo

        # make the old into a new - this doesn't work as the name changed
        prev_parent_commit = smold.parent_commit
        self.failUnlessRaises(ValueError, smold.set_parent_commit,
                              self.k_subm_current)
        # the sha is properly updated
        smold.set_parent_commit(self.k_subm_changed + "~1")
        assert smold.binsha != sm.binsha

        # raises if the sm didn't exist in new parent - it keeps its
        # parent_commit unchanged
        self.failUnlessRaises(ValueError, smold.set_parent_commit,
                              self.k_no_subm_tag)

        # TEST TODO: if a path in the gitmodules file, but not in the index, it raises

        # TEST UPDATE
        ##############
        # module retrieval is not always possible
        if rwrepo.bare:
            self.failUnlessRaises(InvalidGitRepositoryError, sm.module)
            self.failUnlessRaises(InvalidGitRepositoryError, sm.remove)
            self.failUnlessRaises(InvalidGitRepositoryError, sm.add, rwrepo,
                                  'here', 'there')
        else:
            # its not checked out in our case
            self.failUnlessRaises(InvalidGitRepositoryError, sm.module)
            assert not sm.module_exists()

            # currently there is only one submodule
            assert len(list(rwrepo.iter_submodules())) == 1
            assert sm.binsha != "\0" * 20

            # TEST ADD
            ###########
            # preliminary tests
            # adding existing returns exactly the existing
            sma = Submodule.add(rwrepo, sm.name, sm.path)
            assert sma.path == sm.path

            # no url and no module at path fails
            self.failUnlessRaises(ValueError,
                                  Submodule.add,
                                  rwrepo,
                                  "newsubm",
                                  "pathtorepo",
                                  url=None)

            # CONTINUE UPDATE
            #################

            # lets update it - its a recursive one too
            newdir = os.path.join(sm.abspath, 'dir')
            os.makedirs(newdir)

            # update fails if the path already exists non-empty
            self.failUnlessRaises(OSError, sm.update)
            os.rmdir(newdir)

            # dry-run does nothing
            sm.update(dry_run=True, progress=prog)
            assert not sm.module_exists()

            assert sm.update() is sm
            sm_repopath = sm.path  # cache for later
            assert sm.module_exists()
            assert isinstance(sm.module(), git.Repo)
            assert sm.module().working_tree_dir == sm.abspath

            # INTERLEAVE ADD TEST
            #####################
            # url must match the one in the existing repository ( if submodule name suggests a new one )
            # or we raise
            self.failUnlessRaises(ValueError, Submodule.add, rwrepo, "newsubm",
                                  sm.path, "git://someurl/repo.git")

            # CONTINUE UPDATE
            #################
            # we should have setup a tracking branch, which is also active
            assert sm.module().head.ref.tracking_branch() is not None

            # delete the whole directory and re-initialize
            shutil.rmtree(sm.abspath)
            assert len(sm.children()) == 0
            # dry-run does nothing
            sm.update(dry_run=True, recursive=False, progress=prog)
            assert len(sm.children()) == 0

            sm.update(recursive=False)
            assert len(list(rwrepo.iter_submodules())) == 2
            assert len(sm.children()) == 1  # its not checked out yet
            csm = sm.children()[0]
            assert not csm.module_exists()
            csm_repopath = csm.path

            # adjust the path of the submodules module to point to the local destination
            new_csmclone_path = to_native_path_linux(
                join_path_native(self.rorepo.working_tree_dir, sm.path,
                                 csm.path))
            csm.config_writer().set_value('url', new_csmclone_path)
            assert csm.url == new_csmclone_path

            # dry-run does nothing
            assert not csm.module_exists()
            sm.update(recursive=True, dry_run=True, progress=prog)
            assert not csm.module_exists()

            # update recursively again
            sm.update(recursive=True)
            assert csm.module_exists()

            # tracking branch once again
            csm.module().head.ref.tracking_branch() is not None

            # this flushed in a sub-submodule
            assert len(list(rwrepo.iter_submodules())) == 2

            # reset both heads to the previous version, verify that to_latest_revision works
            smods = (sm.module(), csm.module())
            for repo in smods:
                repo.head.reset('HEAD~2', working_tree=1)
            # END for each repo to reset

            # dry run does nothing
            sm.update(recursive=True, dry_run=True, progress=prog)
            for repo in smods:
                assert repo.head.commit != repo.head.ref.tracking_branch(
                ).commit
            # END for each repo to check

            sm.update(recursive=True, to_latest_revision=True)
            for repo in smods:
                assert repo.head.commit == repo.head.ref.tracking_branch(
                ).commit
            # END for each repo to check
            del (smods)

            # if the head is detached, it still works ( but warns )
            smref = sm.module().head.ref
            sm.module().head.ref = 'HEAD~1'
            # if there is no tracking branch, we get a warning as well
            csm_tracking_branch = csm.module().head.ref.tracking_branch()
            csm.module().head.ref.set_tracking_branch(None)
            sm.update(recursive=True, to_latest_revision=True)

            # to_latest_revision changes the child submodule's commit, it needs an
            # update now
            csm.set_parent_commit(csm.repo.head.commit)

            # undo the changes
            sm.module().head.ref = smref
            csm.module().head.ref.set_tracking_branch(csm_tracking_branch)

            # REMOVAL OF REPOSITOTRY
            ########################
            # must delete something
            self.failUnlessRaises(ValueError,
                                  csm.remove,
                                  module=False,
                                  configuration=False)
            # We have modified the configuration, hence the index is dirty, and the
            # deletion will fail
            # NOTE: As we did  a few updates in the meanwhile, the indices were reset
            # Hence we create some changes
            csm.set_parent_commit(csm.repo.head.commit)
            sm.config_writer().set_value("somekey", "somevalue")
            csm.config_writer().set_value("okey", "ovalue")
            self.failUnlessRaises(InvalidGitRepositoryError, sm.remove)
            # if we remove the dirty index, it would work
            sm.module().index.reset()
            # still, we have the file modified
            self.failUnlessRaises(InvalidGitRepositoryError,
                                  sm.remove,
                                  dry_run=True)
            sm.module().index.reset(working_tree=True)

            # this would work
            assert sm.remove(dry_run=True) is sm
            assert sm.module_exists()
            sm.remove(force=True, dry_run=True)
            assert sm.module_exists()

            # but ... we have untracked files in the child submodule
            fn = join_path_native(csm.module().working_tree_dir, "newfile")
            open(fn, 'w').write("hi")
            self.failUnlessRaises(InvalidGitRepositoryError, sm.remove)

            # forcibly delete the child repository
            assert csm.remove(force=True) is csm
            assert not csm.exists()
            assert not csm.module_exists()
            assert len(sm.children()) == 0
            # now we have a changed index, as configuration was altered.
            # fix this
            sm.module().index.reset(working_tree=True)

            # now delete only the module of the main submodule
            assert sm.module_exists()
            sm.remove(configuration=False)
            assert sm.exists()
            assert not sm.module_exists()
            assert sm.config_reader().get_value('url')

            # delete the rest
            sm.remove()
            assert not sm.exists()
            assert not sm.module_exists()

            assert len(rwrepo.submodules) == 0

            # ADD NEW SUBMODULE
            ###################
            # add a simple remote repo - trailing slashes are no problem
            smid = "newsub"
            osmid = "othersub"
            nsm = Submodule.add(rwrepo,
                                smid,
                                sm_repopath,
                                new_smclone_path + "/",
                                None,
                                no_checkout=True)
            assert nsm.name == smid
            assert nsm.module_exists()
            assert nsm.exists()
            # its not checked out
            assert not os.path.isfile(
                join_path_native(nsm.module().working_tree_dir,
                                 Submodule.k_modules_file))
            assert len(rwrepo.submodules) == 1

            # add another submodule, but into the root, not as submodule
            osm = Submodule.add(rwrepo, osmid, csm_repopath, new_csmclone_path,
                                Submodule.k_head_default)
            assert osm != nsm
            assert osm.module_exists()
            assert osm.exists()
            assert os.path.isfile(
                join_path_native(osm.module().working_tree_dir, 'setup.py'))

            assert len(rwrepo.submodules) == 2

            # commit the changes, just to finalize the operation
            rwrepo.index.commit("my submod commit")
            assert len(rwrepo.submodules) == 2

            # needs update as the head changed, it thinks its in the history
            # of the repo otherwise
            nsm.set_parent_commit(rwrepo.head.commit)
            osm.set_parent_commit(rwrepo.head.commit)

            # MOVE MODULE
            #############
            # invalid inptu
            self.failUnlessRaises(ValueError,
                                  nsm.move,
                                  'doesntmatter',
                                  module=False,
                                  configuration=False)

            # renaming to the same path does nothing
            assert nsm.move(sm.path) is nsm

            # rename a module
            nmp = join_path_native("new", "module",
                                   "dir") + "/"  # new module path
            pmp = nsm.path
            abspmp = nsm.abspath
            assert nsm.move(nmp) is nsm
            nmp = nmp[:-1]  # cut last /
            assert nsm.path == nmp
            assert rwrepo.submodules[0].path == nmp

            mpath = 'newsubmodule'
            absmpath = join_path_native(rwrepo.working_tree_dir, mpath)
            open(absmpath, 'w').write('')
            self.failUnlessRaises(ValueError, nsm.move, mpath)
            os.remove(absmpath)

            # now it works, as we just move it back
            nsm.move(pmp)
            assert nsm.path == pmp
            assert rwrepo.submodules[0].path == pmp

            # TODO lowprio: test remaining exceptions ... for now its okay, the code looks right

            # REMOVE 'EM ALL
            ################
            # if a submodule's repo has no remotes, it can't be added without an explicit url
            osmod = osm.module()

            osm.remove(module=False)
            for remote in osmod.remotes:
                remote.remove(osmod, remote.name)
            assert not osm.exists()
            self.failUnlessRaises(ValueError,
                                  Submodule.add,
                                  rwrepo,
                                  osmid,
                                  csm_repopath,
                                  url=None)
        # END handle bare mode

        # Error if there is no submodule file here
        self.failUnlessRaises(IOError, Submodule._config_parser, rwrepo,
                              rwrepo.commit(self.k_no_subm_tag), True)