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Diffstat (limited to 'libbe/storage/vcs/base.py')
| -rw-r--r-- | libbe/storage/vcs/base.py | 941 |
1 files changed, 941 insertions, 0 deletions
diff --git a/libbe/storage/vcs/base.py b/libbe/storage/vcs/base.py new file mode 100644 index 0000000..44643a4 --- /dev/null +++ b/libbe/storage/vcs/base.py @@ -0,0 +1,941 @@ +# Copyright (C) 2005-2009 Aaron Bentley and Panometrics, Inc. +# Alexander Belchenko <bialix@ukr.net> +# Ben Finney <benf@cybersource.com.au> +# Chris Ball <cjb@laptop.org> +# Gianluca Montecchi <gian@grys.it> +# W. Trevor King <wking@drexel.edu> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +""" +Define the base VCS (Version Control System) class, which should be +subclassed by other Version Control System backends. The base class +implements a "do not version" VCS. +""" + +import codecs +import os +import os.path +import re +from socket import gethostname +import shutil +import sys +import tempfile + +import libbe +from utility import Dir, search_parent_directories +from subproc import CommandError, invoke +from plugin import get_plugin + +if libbe.TESTING == True: + import unittest + import doctest + + +# List VCS modules in order of preference. +# Don't list this module, it is implicitly last. +VCS_ORDER = ['arch', 'bzr', 'darcs', 'git', 'hg'] + +def set_preferred_vcs(name): + global VCS_ORDER + assert name in VCS_ORDER, \ + 'unrecognized VCS %s not in\n %s' % (name, VCS_ORDER) + VCS_ORDER.remove(name) + VCS_ORDER.insert(0, name) + +def _get_matching_vcs(matchfn): + """Return the first module for which matchfn(VCS_instance) is true""" + for submodname in VCS_ORDER: + module = get_plugin('libbe', submodname) + vcs = module.new() + if matchfn(vcs) == True: + return vcs + vcs.cleanup() + return VCS() + +def vcs_by_name(vcs_name): + """Return the module for the VCS with the given name""" + return _get_matching_vcs(lambda vcs: vcs.name == vcs_name) + +def detect_vcs(dir): + """Return an VCS instance for the vcs being used in this directory""" + return _get_matching_vcs(lambda vcs: vcs.detect(dir)) + +def installed_vcs(): + """Return an instance of an installed VCS""" + return _get_matching_vcs(lambda vcs: vcs.installed()) + + + +class SettingIDnotSupported(NotImplementedError): + pass + +class VCSnotRooted(Exception): + def __init__(self): + msg = "VCS not rooted" + Exception.__init__(self, msg) + +class PathNotInRoot(Exception): + def __init__(self, path, root): + msg = "Path '%s' not in root '%s'" % (path, root) + Exception.__init__(self, msg) + self.path = path + self.root = root + +class NoSuchFile(Exception): + def __init__(self, pathname, root="."): + path = os.path.abspath(os.path.join(root, pathname)) + Exception.__init__(self, "No such file: %s" % path) + +class EmptyCommit(Exception): + def __init__(self): + Exception.__init__(self, "No changes to commit") + + +def new(): + return VCS() + +class VCS(object): + """ + This class implements a 'no-vcs' interface. + + Support for other VCSs can be added by subclassing this class, and + overriding methods _vcs_*() with code appropriate for your VCS. + + The methods _u_*() are utility methods available to the _vcs_*() + methods. + """ + name = "None" + client = "" # command-line tool for _u_invoke_client + versioned = False + def __init__(self, paranoid=False, encoding=sys.getdefaultencoding()): + self.paranoid = paranoid + self.verboseInvoke = False + self.rootdir = None + self._duplicateBasedir = None + self._duplicateDirname = None + self.encoding = encoding + def __str__(self): + return "<%s %s>" % (self.__class__.__name__, id(self)) + def __repr__(self): + return str(self) + def _vcs_version(self): + """ + Return the VCS version string. + """ + return "0.0" + def _vcs_detect(self, path=None): + """ + Detect whether a directory is revision controlled with this VCS. + """ + return True + def _vcs_root(self, path): + """ + Get the VCS root. This is the default working directory for + future invocations. You would normally set this to the root + directory for your VCS. + """ + if os.path.isdir(path)==False: + path = os.path.dirname(path) + if path == "": + path = os.path.abspath(".") + return path + def _vcs_init(self, path): + """ + Begin versioning the tree based at path. + """ + pass + def _vcs_cleanup(self): + """ + Remove any cruft that _vcs_init() created outside of the + versioned tree. + """ + pass + def _vcs_get_user_id(self): + """ + Get the VCS's suggested user id (e.g. "John Doe <jdoe@example.com>"). + If the VCS has not been configured with a username, return None. + """ + return None + def _vcs_set_user_id(self, value): + """ + Set the VCS's suggested user id (e.g "John Doe <jdoe@example.com>"). + This is run if the VCS has not been configured with a usename, so + that commits will have a reasonable FROM value. + """ + raise SettingIDnotSupported + def _vcs_add(self, path): + """ + Add the already created file at path to version control. + """ + pass + def _vcs_remove(self, path): + """ + Remove the file at path from version control. Optionally + remove the file from the filesystem as well. + """ + pass + def _vcs_update(self, path): + """ + Notify the versioning system of changes to the versioned file + at path. + """ + pass + def _vcs_get_file_contents(self, path, revision=None, binary=False): + """ + Get the file contents as they were in a given revision. + Revision==None specifies the current revision. + """ + assert revision == None, \ + "The %s VCS does not support revision specifiers" % self.name + if binary == False: + f = codecs.open(os.path.join(self.rootdir, path), "r", self.encoding) + else: + f = open(os.path.join(self.rootdir, path), "rb") + contents = f.read() + f.close() + return contents + def _vcs_duplicate_repo(self, directory, revision=None): + """ + Get the repository as it was in a given revision. + revision==None specifies the current revision. + dir specifies a directory to create the duplicate in. + """ + shutil.copytree(self.rootdir, directory, True) + def _vcs_commit(self, commitfile, allow_empty=False): + """ + Commit the current working directory, using the contents of + commitfile as the comment. Return the name of the old + revision (or None if commits are not supported). + + If allow_empty == False, raise EmptyCommit if there are no + changes to commit. + """ + return None + def _vcs_revision_id(self, index): + """ + Return the name of the <index>th revision. Index will be an + integer (possibly <= 0). The choice of which branch to follow + when crossing branches/merges is not defined. + + Return None if revision IDs are not supported, or if the + specified revision does not exist. + """ + return None + def version(self): + """Cache version string for efficiency.""" + if not hasattr(self, '_version'): + self._version = self._get_version() + return self._version + def _get_version(self): + try: + ret = self._vcs_version() + return ret + except OSError, e: + if e.errno == errno.ENOENT: + return None + else: + raise OSError, e + except CommandError: + return None + def installed(self): + if self.version() != None: + return True + return False + def detect(self, path="."): + """ + Detect whether a directory is revision controlled with this VCS. + """ + return self._vcs_detect(path) + def root(self, path): + """ + Set the root directory to the path's VCS root. This is the + default working directory for future invocations. + """ + self.rootdir = self._vcs_root(path) + def init(self, path): + """ + Begin versioning the tree based at path. + Also roots the vcs at path. + """ + if os.path.isdir(path)==False: + path = os.path.dirname(path) + self._vcs_init(path) + self.root(path) + def cleanup(self): + self._vcs_cleanup() + def get_user_id(self): + """ + Get the VCS's suggested user id (e.g. "John Doe <jdoe@example.com>"). + If the VCS has not been configured with a username, return the user's + id. You can override the automatic lookup procedure by setting the + VCS.user_id attribute to a string of your choice. + """ + if hasattr(self, "user_id"): + if self.user_id != None: + return self.user_id + id = self._vcs_get_user_id() + if id == None: + name = self._u_get_fallback_username() + email = self._u_get_fallback_email() + id = self._u_create_id(name, email) + print >> sys.stderr, "Guessing id '%s'" % id + try: + self.set_user_id(id) + except SettingIDnotSupported: + pass + return id + def set_user_id(self, value): + """ + Set the VCS's suggested user id (e.g "John Doe <jdoe@example.com>"). + This is run if the VCS has not been configured with a usename, so + that commits will have a reasonable FROM value. + """ + self._vcs_set_user_id(value) + def add(self, path): + """ + Add the already created file at path to version control. + """ + self._vcs_add(self._u_rel_path(path)) + def remove(self, path): + """ + Remove a file from both version control and the filesystem. + """ + self._vcs_remove(self._u_rel_path(path)) + if os.path.exists(path): + os.remove(path) + def recursive_remove(self, dirname): + """ + Remove a file/directory and all its decendents from both + version control and the filesystem. + """ + if not os.path.exists(dirname): + raise NoSuchFile(dirname) + for dirpath,dirnames,filenames in os.walk(dirname, topdown=False): + filenames.extend(dirnames) + for path in filenames: + fullpath = os.path.join(dirpath, path) + if os.path.exists(fullpath) == False: + continue + self._vcs_remove(self._u_rel_path(fullpath)) + if os.path.exists(dirname): + shutil.rmtree(dirname) + def update(self, path): + """ + Notify the versioning system of changes to the versioned file + at path. + """ + self._vcs_update(self._u_rel_path(path)) + def get_file_contents(self, path, revision=None, allow_no_vcs=False, binary=False): + """ + Get the file as it was in a given revision. + Revision==None specifies the current revision. + + allow_no_vcs==True allows direct access to files through + codecs.open() or open() if the vcs decides it can't handle the + given path. + """ + if not os.path.exists(path): + raise NoSuchFile(path) + if self._use_vcs(path, allow_no_vcs): + relpath = self._u_rel_path(path) + contents = self._vcs_get_file_contents(relpath,revision,binary=binary) + else: + if binary == True: + f = codecs.open(path, "r", self.encoding) + else: + f = open(path, "rb") + contents = f.read() + f.close() + return contents + def set_file_contents(self, path, contents, allow_no_vcs=False, binary=False): + """ + Set the file contents under version control. + """ + add = not os.path.exists(path) + if binary == False: + f = codecs.open(path, "w", self.encoding) + else: + f = open(path, "wb") + f.write(contents) + f.close() + + if self._use_vcs(path, allow_no_vcs): + if add: + self.add(path) + else: + self.update(path) + def mkdir(self, path, allow_no_vcs=False, check_parents=True): + """ + Create (if neccessary) a directory at path under version + control. + """ + if check_parents == True: + parent = os.path.dirname(path) + if not os.path.exists(parent): # recurse through parents + self.mkdir(parent, allow_no_vcs, check_parents) + if not os.path.exists(path): + os.mkdir(path) + if self._use_vcs(path, allow_no_vcs): + self.add(path) + else: + assert os.path.isdir(path) + if self._use_vcs(path, allow_no_vcs): + #self.update(path)# Don't update directories. Changing files + pass # underneath them should be sufficient. + + def duplicate_repo(self, revision=None): + """ + Get the repository as it was in a given revision. + revision==None specifies the current revision. + Return the path to the arbitrary directory at the base of the new repo. + """ + # Dirname in Basedir to protect against simlink attacks. + if self._duplicateBasedir == None: + self._duplicateBasedir = tempfile.mkdtemp(prefix='BEvcs') + self._duplicateDirname = \ + os.path.join(self._duplicateBasedir, "duplicate") + self._vcs_duplicate_repo(directory=self._duplicateDirname, + revision=revision) + return self._duplicateDirname + def remove_duplicate_repo(self): + """ + Clean up a duplicate repo created with duplicate_repo(). + """ + if self._duplicateBasedir != None: + shutil.rmtree(self._duplicateBasedir) + self._duplicateBasedir = None + self._duplicateDirname = None + def commit(self, summary, body=None, allow_empty=False): + """ + Commit the current working directory, with a commit message + string summary and body. Return the name of the old revision + (or None if versioning is not supported). + + If allow_empty == False (the default), raise EmptyCommit if + there are no changes to commit. + """ + summary = summary.strip()+'\n' + if body is not None: + summary += '\n' + body.strip() + '\n' + descriptor, filename = tempfile.mkstemp() + revision = None + try: + temp_file = os.fdopen(descriptor, 'wb') + temp_file.write(summary) + temp_file.flush() + self.precommit() + revision = self._vcs_commit(filename, allow_empty=allow_empty) + temp_file.close() + self.postcommit() + finally: + os.remove(filename) + return revision + def precommit(self): + """ + Executed before all attempted commits. + """ + pass + def postcommit(self): + """ + Only executed after successful commits. + """ + pass + def revision_id(self, index=None): + """ + Return the name of the <index>th revision. The choice of + which branch to follow when crossing branches/merges is not + defined. + + Return None if index==None, revision IDs are not supported, or + if the specified revision does not exist. + """ + if index == None: + return None + return self._vcs_revision_id(index) + def _u_any_in_string(self, list, string): + """ + Return True if any of the strings in list are in string. + Otherwise return False. + """ + for list_string in list: + if list_string in string: + return True + return False + def _u_invoke(self, *args, **kwargs): + if 'cwd' not in kwargs: + kwargs['cwd'] = self.rootdir + if 'verbose' not in kwargs: + kwargs['verbose'] = self.verboseInvoke + if 'encoding' not in kwargs: + kwargs['encoding'] = self.encoding + return invoke(*args, **kwargs) + def _u_invoke_client(self, *args, **kwargs): + cl_args = [self.client] + cl_args.extend(args) + return self._u_invoke(cl_args, **kwargs) + def _u_search_parent_directories(self, path, filename): + """ + Find the file (or directory) named filename in path or in any + of path's parents. + + e.g. + search_parent_directories("/a/b/c", ".be") + will return the path to the first existing file from + /a/b/c/.be + /a/b/.be + /a/.be + /.be + or None if none of those files exist. + """ + return search_parent_directories(path, filename) + def _use_vcs(self, path, allow_no_vcs): + """ + Try and decide if _vcs_add/update/mkdir/etc calls will + succeed. Returns True is we think the vcs_call would + succeeed, and False otherwise. + """ + use_vcs = True + exception = None + if self.rootdir != None: + if self.path_in_root(path) == False: + use_vcs = False + exception = PathNotInRoot(path, self.rootdir) + else: + use_vcs = False + exception = VCSnotRooted + if use_vcs == False and allow_no_vcs==False: + raise exception + return use_vcs + def path_in_root(self, path, root=None): + """ + Return the relative path to path from root. + >>> vcs = new() + >>> vcs.path_in_root("/a.b/c/.be", "/a.b/c") + True + >>> vcs.path_in_root("/a.b/.be", "/a.b/c") + False + """ + if root == None: + if self.rootdir == None: + raise VCSnotRooted + root = self.rootdir + path = os.path.abspath(path) + absRoot = os.path.abspath(root) + absRootSlashedDir = os.path.join(absRoot,"") + if not path.startswith(absRootSlashedDir): + return False + return True + def _u_rel_path(self, path, root=None): + """ + Return the relative path to path from root. + >>> vcs = new() + >>> vcs._u_rel_path("/a.b/c/.be", "/a.b/c") + '.be' + """ + if root == None: + if self.rootdir == None: + raise VCSnotRooted + root = self.rootdir + path = os.path.abspath(path) + absRoot = os.path.abspath(root) + absRootSlashedDir = os.path.join(absRoot,"") + if not path.startswith(absRootSlashedDir): + raise PathNotInRoot(path, absRootSlashedDir) + assert path != absRootSlashedDir, \ + "file %s == root directory %s" % (path, absRootSlashedDir) + relpath = path[len(absRootSlashedDir):] + return relpath + def _u_abspath(self, path, root=None): + """ + Return the absolute path from a path realtive to root. + >>> vcs = new() + >>> vcs._u_abspath(".be", "/a.b/c") + '/a.b/c/.be' + """ + if root == None: + assert self.rootdir != None, "VCS not rooted" + root = self.rootdir + return os.path.abspath(os.path.join(root, path)) + def _u_create_id(self, name, email=None): + """ + >>> vcs = new() + >>> vcs._u_create_id("John Doe", "jdoe@example.com") + 'John Doe <jdoe@example.com>' + >>> vcs._u_create_id("John Doe") + 'John Doe' + """ + assert len(name) > 0 + if email == None or len(email) == 0: + return name + else: + return "%s <%s>" % (name, email) + def _u_parse_id(self, value): + """ + >>> vcs = new() + >>> vcs._u_parse_id("John Doe <jdoe@example.com>") + ('John Doe', 'jdoe@example.com') + >>> vcs._u_parse_id("John Doe") + ('John Doe', None) + >>> try: + ... vcs._u_parse_id("John Doe <jdoe@example.com><what?>") + ... except AssertionError: + ... print "Invalid match" + Invalid match + """ + emailexp = re.compile("(.*) <([^>]*)>(.*)") + match = emailexp.search(value) + if match == None: + email = None + name = value + else: + assert len(match.groups()) == 3 + assert match.groups()[2] == "", match.groups() + email = match.groups()[1] + name = match.groups()[0] + assert name != None + assert len(name) > 0 + return (name, email) + def _u_get_fallback_username(self): + name = None + for envariable in ["LOGNAME", "USERNAME"]: + if os.environ.has_key(envariable): + name = os.environ[envariable] + break + assert name != None + return name + def _u_get_fallback_email(self): + hostname = gethostname() + name = self._u_get_fallback_username() + return "%s@%s" % (name, hostname) + def _u_parse_commitfile(self, commitfile): + """ + Split the commitfile created in self.commit() back into + summary and header lines. + """ + f = codecs.open(commitfile, "r", self.encoding) + summary = f.readline() + body = f.read() + body.lstrip('\n') + if len(body) == 0: + body = None + f.close() + return (summary, body) + + +if libbe.TESTING == True: + def setup_vcs_test_fixtures(testcase): + """Set up test fixtures for VCS test case.""" + testcase.vcs = testcase.Class() + testcase.dir = Dir() + testcase.dirname = testcase.dir.path + + vcs_not_supporting_uninitialized_user_id = [] + vcs_not_supporting_set_user_id = ["None", "hg"] + testcase.vcs_supports_uninitialized_user_id = ( + testcase.vcs.name not in vcs_not_supporting_uninitialized_user_id) + testcase.vcs_supports_set_user_id = ( + testcase.vcs.name not in vcs_not_supporting_set_user_id) + + if not testcase.vcs.installed(): + testcase.fail( + "%(name)s VCS not found" % vars(testcase.Class)) + + if testcase.Class.name != "None": + testcase.failIf( + testcase.vcs.detect(testcase.dirname), + "Detected %(name)s VCS before initialising" + % vars(testcase.Class)) + + testcase.vcs.init(testcase.dirname) + + class VCSTestCase(unittest.TestCase): + """Test cases for base VCS class.""" + + Class = VCS + + def __init__(self, *args, **kwargs): + super(VCSTestCase, self).__init__(*args, **kwargs) + self.dirname = None + + def setUp(self): + super(VCSTestCase, self).setUp() + setup_vcs_test_fixtures(self) + + def tearDown(self): + self.vcs.cleanup() + self.dir.cleanup() + super(VCSTestCase, self).tearDown() + + def full_path(self, rel_path): + return os.path.join(self.dirname, rel_path) + + + class VCS_init_TestCase(VCSTestCase): + """Test cases for VCS.init method.""" + + def test_detect_should_succeed_after_init(self): + """Should detect VCS in directory after initialization.""" + self.failUnless( + self.vcs.detect(self.dirname), + "Did not detect %(name)s VCS after initialising" + % vars(self.Class)) + + def test_vcs_rootdir_in_specified_root_path(self): + """VCS root directory should be in specified root path.""" + rp = os.path.realpath(self.vcs.rootdir) + dp = os.path.realpath(self.dirname) + vcs_name = self.Class.name + self.failUnless( + dp == rp or rp == None, + "%(vcs_name)s VCS root in wrong dir (%(dp)s %(rp)s)" % vars()) + + + class VCS_get_user_id_TestCase(VCSTestCase): + """Test cases for VCS.get_user_id method.""" + + def test_gets_existing_user_id(self): + """Should get the existing user ID.""" + if not self.vcs_supports_uninitialized_user_id: + return + + user_id = self.vcs.get_user_id() + self.failUnless( + user_id is not None, + "unable to get a user id") + + + class VCS_set_user_id_TestCase(VCSTestCase): + """Test cases for VCS.set_user_id method.""" + + def setUp(self): + super(VCS_set_user_id_TestCase, self).setUp() + + if self.vcs_supports_uninitialized_user_id: + self.prev_user_id = self.vcs.get_user_id() + else: + self.prev_user_id = "Uninitialized identity <bogus@example.org>" + + if self.vcs_supports_set_user_id: + self.test_new_user_id = "John Doe <jdoe@example.com>" + self.vcs.set_user_id(self.test_new_user_id) + + def tearDown(self): + if self.vcs_supports_set_user_id: + self.vcs.set_user_id(self.prev_user_id) + super(VCS_set_user_id_TestCase, self).tearDown() + + def test_raises_error_in_unsupported_vcs(self): + """Should raise an error in a VCS that doesn't support it.""" + if self.vcs_supports_set_user_id: + return + self.assertRaises( + SettingIDnotSupported, + self.vcs.set_user_id, "foo") + + def test_updates_user_id_in_supporting_vcs(self): + """Should update the user ID in an VCS that supports it.""" + if not self.vcs_supports_set_user_id: + return + user_id = self.vcs.get_user_id() + self.failUnlessEqual( + self.test_new_user_id, user_id, + "user id not set correctly (expected %s, got %s)" + % (self.test_new_user_id, user_id)) + + + def setup_vcs_revision_test_fixtures(testcase): + """Set up revision test fixtures for VCS test case.""" + testcase.test_dirs = ['a', 'a/b', 'c'] + for path in testcase.test_dirs: + testcase.vcs.mkdir(testcase.full_path(path)) + + testcase.test_files = ['a/text', 'a/b/text'] + + testcase.test_contents = { + 'rev_1': "Lorem ipsum", + 'uncommitted': "dolor sit amet", + } + + + class VCS_mkdir_TestCase(VCSTestCase): + """Test cases for VCS.mkdir method.""" + + def setUp(self): + super(VCS_mkdir_TestCase, self).setUp() + setup_vcs_revision_test_fixtures(self) + + def tearDown(self): + for path in reversed(sorted(self.test_dirs)): + self.vcs.recursive_remove(self.full_path(path)) + super(VCS_mkdir_TestCase, self).tearDown() + + def test_mkdir_creates_directory(self): + """Should create specified directory in filesystem.""" + for path in self.test_dirs: + full_path = self.full_path(path) + self.failUnless( + os.path.exists(full_path), + "path %(full_path)s does not exist" % vars()) + + + class VCS_commit_TestCase(VCSTestCase): + """Test cases for VCS.commit method.""" + + def setUp(self): + super(VCS_commit_TestCase, self).setUp() + setup_vcs_revision_test_fixtures(self) + + def tearDown(self): + for path in reversed(sorted(self.test_dirs)): + self.vcs.recursive_remove(self.full_path(path)) + super(VCS_commit_TestCase, self).tearDown() + + def test_file_contents_as_specified(self): + """Should set file contents as specified.""" + test_contents = self.test_contents['rev_1'] + for path in self.test_files: + full_path = self.full_path(path) + self.vcs.set_file_contents(full_path, test_contents) + current_contents = self.vcs.get_file_contents(full_path) + self.failUnlessEqual(test_contents, current_contents) + + def test_file_contents_as_committed(self): + """Should have file contents as specified after commit.""" + test_contents = self.test_contents['rev_1'] + for path in self.test_files: + full_path = self.full_path(path) + self.vcs.set_file_contents(full_path, test_contents) + revision = self.vcs.commit("Initial file contents.") + current_contents = self.vcs.get_file_contents(full_path) + self.failUnlessEqual(test_contents, current_contents) + + def test_file_contents_as_set_when_uncommitted(self): + """Should set file contents as specified after commit.""" + if not self.vcs.versioned: + return + for path in self.test_files: + full_path = self.full_path(path) + self.vcs.set_file_contents( + full_path, self.test_contents['rev_1']) + revision = self.vcs.commit("Initial file contents.") + self.vcs.set_file_contents( + full_path, self.test_contents['uncommitted']) + current_contents = self.vcs.get_file_contents(full_path) + self.failUnlessEqual( + self.test_contents['uncommitted'], current_contents) + + def test_revision_file_contents_as_committed(self): + """Should get file contents as committed to specified revision.""" + if not self.vcs.versioned: + return + for path in self.test_files: + full_path = self.full_path(path) + self.vcs.set_file_contents( + full_path, self.test_contents['rev_1']) + revision = self.vcs.commit("Initial file contents.") + self.vcs.set_file_contents( + full_path, self.test_contents['uncommitted']) + committed_contents = self.vcs.get_file_contents( + full_path, revision) + self.failUnlessEqual( + self.test_contents['rev_1'], committed_contents) + + def test_revision_id_as_committed(self): + """Check for compatibility between .commit() and .revision_id()""" + if not self.vcs.versioned: + self.failUnlessEqual(self.vcs.revision_id(5), None) + return + committed_revisions = [] + for path in self.test_files: + full_path = self.full_path(path) + self.vcs.set_file_contents( + full_path, self.test_contents['rev_1']) + revision = self.vcs.commit("Initial %s contents." % path) + committed_revisions.append(revision) + self.vcs.set_file_contents( + full_path, self.test_contents['uncommitted']) + revision = self.vcs.commit("Altered %s contents." % path) + committed_revisions.append(revision) + for i,revision in enumerate(committed_revisions): + self.failUnlessEqual(self.vcs.revision_id(i), revision) + i += -len(committed_revisions) # check negative indices + self.failUnlessEqual(self.vcs.revision_id(i), revision) + i = len(committed_revisions) + self.failUnlessEqual(self.vcs.revision_id(i), None) + self.failUnlessEqual(self.vcs.revision_id(-i-1), None) + + def test_revision_id_as_committed(self): + """Check revision id before first commit""" + if not self.vcs.versioned: + self.failUnlessEqual(self.vcs.revision_id(5), None) + return + committed_revisions = [] + for path in self.test_files: + self.failUnlessEqual(self.vcs.revision_id(0), None) + + + class VCS_duplicate_repo_TestCase(VCSTestCase): + """Test cases for VCS.duplicate_repo method.""" + + def setUp(self): + super(VCS_duplicate_repo_TestCase, self).setUp() + setup_vcs_revision_test_fixtures(self) + + def tearDown(self): + self.vcs.remove_duplicate_repo() + for path in reversed(sorted(self.test_dirs)): + self.vcs.recursive_remove(self.full_path(path)) + super(VCS_duplicate_repo_TestCase, self).tearDown() + + def test_revision_file_contents_as_committed(self): + """Should match file contents as committed to specified revision. + """ + if not self.vcs.versioned: + return + for path in self.test_files: + full_path = self.full_path(path) + self.vcs.set_file_contents( + full_path, self.test_contents['rev_1']) + revision = self.vcs.commit("Commit current status") + self.vcs.set_file_contents( + full_path, self.test_contents['uncommitted']) + dup_repo_path = self.vcs.duplicate_repo(revision) + dup_file_path = os.path.join(dup_repo_path, path) + dup_file_contents = file(dup_file_path, 'rb').read() + self.failUnlessEqual( + self.test_contents['rev_1'], dup_file_contents) + self.vcs.remove_duplicate_repo() + + + def make_vcs_testcase_subclasses(vcs_class, namespace): + """Make VCSTestCase subclasses for vcs_class in the namespace.""" + vcs_testcase_classes = [ + c for c in ( + ob for ob in globals().values() if isinstance(ob, type)) + if issubclass(c, VCSTestCase)] + + for base_class in vcs_testcase_classes: + testcase_class_name = vcs_class.__name__ + base_class.__name__ + testcase_class_bases = (base_class,) + testcase_class_dict = dict(base_class.__dict__) + testcase_class_dict['Class'] = vcs_class + testcase_class = type( + testcase_class_name, testcase_class_bases, testcase_class_dict) + setattr(namespace, testcase_class_name, testcase_class) + + + unitsuite =unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) + suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()]) |