# Copyright (C) 2005-2010 Aaron Bentley and Panometrics, Inc. # Alexander Belchenko # Ben Finney # Chris Ball # Gianluca Montecchi # W. Trevor King # # 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 import shutil import sys import tempfile import types import libbe import libbe.storage import libbe.storage.base import libbe.util.encoding from libbe.storage.base import EmptyCommit, InvalidRevision, InvalidID from libbe.util.utility import Dir, search_parent_directories from libbe.util.subproc import CommandError, invoke from libbe.util.plugin import import_by_name import libbe.storage.util.upgrade as upgrade if libbe.TESTING == True: import unittest import doctest import libbe.ui.util.user # 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 = import_by_name('libbe.storage.vcs.%s' % submodname) vcs = module.new() if matchfn(vcs) == True: return vcs return VCS() def vcs_by_name(vcs_name): """Return the module for the VCS with the given name""" if vcs_name == VCS.name: return new() 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 VCSNotRooted (libbe.storage.base.ConnectionError): def __init__(self, vcs): msg = 'VCS not rooted' libbe.storage.base.ConnectionError.__init__(self, msg) self.vcs = vcs class VCSUnableToRoot (libbe.storage.base.ConnectionError): def __init__(self, vcs): msg = 'VCS unable to root' libbe.storage.base.ConnectionError.__init__(self, msg) self.vcs = vcs class InvalidPath (InvalidID): def __init__(self, path, root, msg=None, **kwargs): if msg == None: msg = 'Path "%s" not in root "%s"' % (path, root) InvalidID.__init__(self, msg=msg, **kwargs) self.path = path self.root = root class SpacerCollision (InvalidPath): def __init__(self, path, spacer): msg = 'Path "%s" collides with spacer directory "%s"' % (path, spacer) InvalidPath.__init__(self, path, root=None, msg=msg) self.spacer = spacer class NoSuchFile (InvalidID): def __init__(self, pathname, root='.'): path = os.path.abspath(os.path.join(root, pathname)) InvalidID.__init__(self, 'No such file: %s' % path) class CachedPathID (object): """ Storage ID <-> path policy. .../.be/BUGDIR/bugs/BUG/comments/COMMENT ^-- root path >>> dir = Dir() >>> os.mkdir(os.path.join(dir.path, '.be')) >>> os.mkdir(os.path.join(dir.path, '.be', 'abc')) >>> os.mkdir(os.path.join(dir.path, '.be', 'abc', 'bugs')) >>> os.mkdir(os.path.join(dir.path, '.be', 'abc', 'bugs', '123')) >>> os.mkdir(os.path.join(dir.path, '.be', 'abc', 'bugs', '123', 'comments')) >>> os.mkdir(os.path.join(dir.path, '.be', 'abc', 'bugs', '123', 'comments', 'def')) >>> os.mkdir(os.path.join(dir.path, '.be', 'abc', 'bugs', '456')) >>> file(os.path.join(dir.path, '.be', 'abc', 'values'), ... 'w').close() >>> file(os.path.join(dir.path, '.be', 'abc', 'bugs', '123', 'values'), ... 'w').close() >>> file(os.path.join(dir.path, '.be', 'abc', 'bugs', '123', 'comments', 'def', 'values'), ... 'w').close() >>> c = CachedPathID() >>> c.root(dir.path) >>> c.id(os.path.join(dir.path, '.be', 'abc', 'bugs', '123', 'comments', 'def', 'values')) 'def/values' >>> c.init() >>> sorted(os.listdir(os.path.join(c._root, '.be'))) ['abc', 'id-cache'] >>> c.connect() >>> c.path('123/values') # doctest: +ELLIPSIS u'.../.be/abc/bugs/123/values' >>> c.disconnect() >>> c.destroy() >>> sorted(os.listdir(os.path.join(c._root, '.be'))) ['abc'] >>> c.connect() # demonstrate auto init >>> sorted(os.listdir(os.path.join(c._root, '.be'))) ['abc', 'id-cache'] >>> c.add_id(u'xyz', parent=None) # doctest: +ELLIPSIS u'.../.be/xyz' >>> c.add_id('xyz/def', parent='xyz') # doctest: +ELLIPSIS u'.../.be/xyz/def' >>> c.add_id('qrs', parent='123') # doctest: +ELLIPSIS u'.../.be/abc/bugs/123/comments/qrs' >>> c.disconnect() >>> c.connect() >>> c.path('qrs') # doctest: +ELLIPSIS u'.../.be/abc/bugs/123/comments/qrs' >>> c.remove_id('qrs') >>> c.path('qrs') Traceback (most recent call last): ... InvalidID: qrs in revision None >>> c.disconnect() >>> c.destroy() >>> dir.cleanup() """ def __init__(self, encoding=None): self.encoding = libbe.util.encoding.get_filesystem_encoding() self._spacer_dirs = ['.be', 'bugs', 'comments'] def root(self, path): self._root = os.path.abspath(path).rstrip(os.path.sep) self._cache_path = os.path.join( self._root, self._spacer_dirs[0], 'id-cache') def init(self): """ Create cache file for an existing .be directory. File if multiple lines of the form: UUID\tPATH """ self._cache = {} spaced_root = os.path.join(self._root, self._spacer_dirs[0]) for dirpath, dirnames, filenames in os.walk(spaced_root): if dirpath == spaced_root: continue try: id = self.id(dirpath) relpath = dirpath[len(self._root)+1:] if id.count('/') == 0: if id in self._cache: print >> sys.stderr, 'Multiple paths for %s: \n %s\n %s' % (id, self._cache[id], relpath) self._cache[id] = relpath except InvalidPath: pass self._changed = True self.disconnect() def destroy(self): if os.path.exists(self._cache_path): os.remove(self._cache_path) def connect(self): if not os.path.exists(self._cache_path): try: self.init() except IOError: raise libbe.storage.base.ConnectionError self._cache = {} # key: uuid, value: path self._changed = False f = codecs.open(self._cache_path, 'r', self.encoding) for line in f: fields = line.rstrip('\n').split('\t') self._cache[fields[0]] = fields[1] f.close() def disconnect(self): if self._changed == True: f = codecs.open(self._cache_path, 'w', self.encoding) for uuid,path in self._cache.items(): f.write('%s\t%s\n' % (uuid, path)) f.close() self._cache = {} def path(self, id, relpath=False): fields = id.split('/', 1) uuid = fields[0] if len(fields) == 1: extra = [] else: extra = fields[1:] if uuid not in self._cache: raise InvalidID(uuid) if relpath == True: return os.path.join(self._cache[uuid], *extra) return os.path.join(self._root, self._cache[uuid], *extra) def add_id(self, id, parent=None): if id.count('/') > 0: # not a UUID-level path assert id.startswith(parent), \ 'Strange ID: "%s" should start with "%s"' % (id, parent) path = self.path(id) elif id in self._cache: # already added path = self.path(id) else: if parent == None: parent_path = '' spacer = self._spacer_dirs[0] else: assert parent.count('/') == 0, \ 'Strange parent ID: "%s" should be UUID' % parent parent_path = self.path(parent, relpath=True) parent_spacer = parent_path.split(os.path.sep)[-2] i = self._spacer_dirs.index(parent_spacer) spacer = self._spacer_dirs[i+1] path = os.path.join(parent_path, spacer, id) self._cache[id] = path self._changed = True path = os.path.join(self._root, path) return path def remove_id(self, id): if id.count('/') > 0: return # not a UUID-level path self._cache.pop(id) self._changed = True def id(self, path): path = os.path.join(self._root, path) if not path.startswith(self._root + os.path.sep): raise InvalidPath(path, self._root) path = path[len(self._root)+1:] orig_path = path if not path.startswith(self._spacer_dirs[0] + os.path.sep): raise InvalidPath(path, self._spacer_dirs[0]) for spacer in self._spacer_dirs: if not path.startswith(spacer + os.path.sep): break id = path[len(spacer)+1:] fields = path[len(spacer)+1:].split(os.path.sep,1) if len(fields) == 1: break path = fields[1] for spacer in self._spacer_dirs: if id.endswith(os.path.sep + spacer): raise SpacerCollision(orig_path, spacer) if os.path.sep != '/': id = id.replace(os.path.sep, '/') return id def new(): return VCS() class VCS (libbe.storage.base.VersionedStorage): """ 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. Sink to existing root ====================== Consider the following usage case: You have a bug directory rooted in /path/to/source by which I mean the '.be' directory is at /path/to/source/.be However, you're of in some subdirectory like /path/to/source/GUI/testing and you want to comment on a bug. Setting sink_to_root=True when you initialize your BugDir will cause it to search for the '.be' file in the ancestors of the path you passed in as 'root'. /path/to/source/GUI/testing/.be miss /path/to/source/GUI/.be miss /path/to/source/.be hit! So it still roots itself appropriately without much work for you. File-system access ================== BugDirs live completely in memory when .sync_with_disk is False. This is the default configuration setup by BugDir(from_disk=False). If .sync_with_disk == True (e.g. BugDir(from_disk=True)), then any changes to the BugDir will be immediately written to disk. If you want to change .sync_with_disk, we suggest you use .set_sync_with_disk(), which propogates the new setting through to all bugs/comments/etc. that have been loaded into memory. If you've been living in memory and want to move to .sync_with_disk==True, but you're not sure if anything has been changed in memory, a call to .save() immediately before the .set_sync_with_disk(True) call is a safe move. Regardless of .sync_with_disk, a call to .save() will write out all the contents that the BugDir instance has loaded into memory. If sync_with_disk has been True over the course of all interesting changes, this .save() call will be a waste of time. The BugDir will only load information from the file system when it loads new settings/bugs/comments that it doesn't already have in memory and .sync_with_disk == True. Allow storage initialization ======================== This one is for testing purposes. Setting it to True allows the BugDir to search for an installed Storage backend and initialize it in the root directory. This is a convenience option for supporting tests of versioning functionality (e.g. RevisionedBugDir). Disable encoding manipulation ============================= This one is for testing purposed. You might have non-ASCII Unicode in your bugs, comments, files, etc. BugDir instances try and support your preferred encoding scheme (e.g. "utf-8") when dealing with stream and file input/output. For stream output, this involves replacing sys.stdout and sys.stderr (libbe.encode.set_IO_stream_encodings). However this messes up doctest's output catching. In order to support doctest tests using BugDirs, set manipulate_encodings=False, and stick to ASCII in your tests. if root == None: root = os.getcwd() if sink_to_existing_root == True: self.root = self._find_root(root) else: if not os.path.exists(root): self.root = None raise NoRootEntry(root) self.root = root # get a temporary storage until we've loaded settings self.sync_with_disk = False self.storage = self._guess_storage() if assert_new_BugDir == True: if os.path.exists(self.get_path()): raise AlreadyInitialized, self.get_path() if storage == None: storage = self._guess_storage(allow_storage_init) self.storage = storage self._setup_user_id(self.user_id) # methods for getting the BugDir situated in the filesystem def _find_root(self, path): ''' Search for an existing bug database dir and it's ancestors and return a BugDir rooted there. Only called by __init__, and then only if sink_to_existing_root == True. ''' if not os.path.exists(path): self.root = None raise NoRootEntry(path) versionfile=utility.search_parent_directories(path, os.path.join(".be", "version")) if versionfile != None: beroot = os.path.dirname(versionfile) root = os.path.dirname(beroot) return root else: beroot = utility.search_parent_directories(path, ".be") if beroot == None: self.root = None raise NoBugDir(path) return beroot def _guess_storage(self, allow_storage_init=False): ''' Only called by __init__. ''' deepdir = self.get_path() if not os.path.exists(deepdir): deepdir = os.path.dirname(deepdir) new_storage = storage.detect_storage(deepdir) install = False if new_storage.name == "None": if allow_storage_init == True: new_storage = storage.installed_storage() new_storage.init(self.root) return new_storage os.listdir(self.get_path("bugs")): """ name = 'None' client = 'false' # command-line tool for _u_invoke_client def __init__(self, *args, **kwargs): if 'encoding' not in kwargs: kwargs['encoding'] = libbe.util.encoding.get_filesystem_encoding() libbe.storage.base.VersionedStorage.__init__(self, *args, **kwargs) self.versioned = False self.interspersed_vcs_files = False self.verbose_invoke = False self._cached_path_id = CachedPathID() self._rooted = False def _vcs_version(self): """ Return the VCS version string. """ return '0' def _vcs_get_user_id(self): """ Get the VCS's suggested user id (e.g. "John Doe "). If the VCS has not been configured with a username, return None. """ return None 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_destroy(self): """ Remove any files used in versioning (e.g. whatever _vcs_init() created). """ pass 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_is_versioned(self, path): """ Return true if a path is under version control, False otherwise. You only need to set this if the VCS goes about dumping VCS-specific files into the .be directory. If you do need to implement this method (e.g. Arch), set self.interspersed_vcs_files = True """ assert self.interspersed_vcs_files == False raise NotImplementedError def _vcs_get_file_contents(self, path, revision=None): """ Get the file contents as they were in a given revision. Revision==None specifies the current revision. """ if revision != None: raise libbe.storage.base.InvalidRevision( 'The %s VCS does not support revision specifiers' % self.name) path = os.path.join(self.repo, path) if not os.path.exists(path): return libbe.util.InvalidObject if os.path.isdir(path): return libbe.storage.base.InvalidDirectory f = open(path, 'rb') contents = f.read() f.close() return contents def _vcs_path(self, id, revision): """ Return the path to object id as of revision. Revision will not be None. """ raise NotImplementedError def _vcs_isdir(self, path, revision): """ Return True if path (as returned by _vcs_path) was a directory as of revision, False otherwise. Revision will not be None. """ raise NotImplementedError def _vcs_listdir(self, path, revision): """ Return a list of the contents of the directory path (as returned by _vcs_path) as of revision. Revision will not be None, and ._vcs_isdir(path, revision) will be True. """ raise NotImplementedError 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 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 _vcs_changed(self, revision): """ Return a tuple of lists of ids (new, modified, removed) from the specified revision to the current situation. """ return ([], [], []) 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 get_user_id(self): """ Get the VCS's suggested user id (e.g. "John Doe "). If the VCS has not been configured with a username, return None. You can override the automatic lookup procedure by setting the VCS.user_id attribute to a string of your choice. """ if not hasattr(self, 'user_id'): self.user_id = self._vcs_get_user_id() return self.user_id def _detect(self, path='.'): """ Detect whether a directory is revision controlled with this VCS. """ return self._vcs_detect(path) def root(self): """ Set the root directory to the path's VCS root. This is the default working directory for future invocations. """ if self._detect(self.repo) == False: raise VCSUnableToRoot(self) root = self._vcs_root(self.repo) self.repo = os.path.abspath(root) if os.path.isdir(self.repo) == False: self.repo = os.path.dirname(self.repo) self.be_dir = os.path.join( self.repo, self._cached_path_id._spacer_dirs[0]) self._cached_path_id.root(self.repo) self._rooted = True def _init(self): """ Begin versioning the tree based at self.repo. Also roots the vcs at path. """ if not os.path.exists(self.repo) or not os.path.isdir(self.repo): raise VCSUnableToRoot(self) if self._vcs_detect(self.repo) == False: self._vcs_init(self.repo) if self._rooted == False: self.root() os.mkdir(self.be_dir) self._vcs_add(self._u_rel_path(self.be_dir)) self._setup_storage_version() self._cached_path_id.init() def _destroy(self): self._vcs_destroy() self._cached_path_id.destroy() if os.path.exists(self.be_dir): shutil.rmtree(self.be_dir) def _connect(self): if self._rooted == False: self.root() if not os.path.isdir(self.be_dir): raise libbe.storage.base.ConnectionError(self) self._cached_path_id.connect() self.check_storage_version() def _disconnect(self): self._cached_path_id.disconnect() def _add_path(self, path, directory=False): relpath = self._u_rel_path(path) reldirs = relpath.split(os.path.sep) if directory == False: reldirs = reldirs[:-1] dir = self.repo for reldir in reldirs: dir = os.path.join(dir, reldir) if not os.path.exists(dir): os.mkdir(dir) self._vcs_add(self._u_rel_path(dir)) elif not os.path.isdir(dir): raise libbe.storage.base.InvalidDirectory if directory == False: if not os.path.exists(path): open(path, 'w').close() self._vcs_add(self._u_rel_path(path)) def _add(self, id, parent=None, **kwargs): path = self._cached_path_id.add_id(id, parent) self._add_path(path, **kwargs) def _remove(self, id): path = self._cached_path_id.path(id) if os.path.exists(path): if os.path.isdir(path) and len(self.children(id)) > 0: raise libbe.storage.base.DirectoryNotEmpty(id) self._vcs_remove(self._u_rel_path(path)) if os.path.exists(path): if os.path.isdir(path): os.rmdir(path) else: os.remove(path) self._cached_path_id.remove_id(id) def _recursive_remove(self, id): path = self._cached_path_id.path(id) for dirpath,dirnames,filenames in os.walk(path, topdown=False): filenames.extend(dirnames) for f in filenames: fullpath = os.path.join(dirpath, f) if os.path.exists(fullpath) == False: continue self._vcs_remove(self._u_rel_path(fullpath)) if os.path.exists(path): shutil.rmtree(path) path = self._cached_path_id.path(id, relpath=True) for id,p in self._cached_path_id._cache.items(): if p.startswith(path): self._cached_path_id.remove_id(id) def _ancestors(self, id=None, revision=None): if revision == None: id_to_path = self._cached_path_id.path else: id_to_path = lambda id : os.path.join( self.repo, self._vcs_path(id, revision)) if id==None: path = self.be_dir else: path = id_to_path(id) ancestors = [] while True: if not path.startswith(self.repo + os.path.sep): break path = os.path.dirname(path) try: id = self._u_path_to_id(path) ancestors.append(id) except (SpacerCollision, InvalidPath): pass return ancestors def _children(self, id=None, revision=None): if revision == None: id_to_path = self._cached_path_id.path isdir = os.path.isdir listdir = os.listdir else: id_to_path = lambda id : os.path.join( self.repo, self._vcs_path(id, revision)) isdir = lambda path : self._vcs_isdir( self._u_rel_path(path), revision) listdir = lambda path : self._vcs_listdir( self._u_rel_path(path), revision) if id==None: path = self.be_dir else: path = id_to_path(id) if isdir(path) == False: return [] children = listdir(path) for i,c in enumerate(children): if c in self._cached_path_id._spacer_dirs: children[i] = None children.extend([os.path.join(c, c2) for c2 in listdir(os.path.join(path, c))]) elif c in ['id-cache', 'version']: children[i] = None elif self.interspersed_vcs_files \ and self._vcs_is_versioned(c) == False: children[i] = None for i,c in enumerate(children): if c == None: continue cpath = os.path.join(path, c) if self.interspersed_vcs_files == True \ and revision != None \ and self._vcs_is_versioned(cpath) == False: children[i] = None else: children[i] = self._u_path_to_id(cpath) children[i] return [c for c in children if c != None] def _get(self, id, default=libbe.util.InvalidObject, revision=None): try: path = self._cached_path_id.path(id) except InvalidID, e: if default == libbe.util.InvalidObject: raise e return default relpath = self._u_rel_path(path) try: contents = self._vcs_get_file_contents(relpath, revision) except InvalidID, e: if e.id == None: e.id = id if e.revision == None: e.revision = revision raise if contents in [libbe.storage.base.InvalidDirectory, libbe.util.InvalidObject]: raise InvalidID(id, revision) elif len(contents) == 0: return None return contents def _set(self, id, value): try: path = self._cached_path_id.path(id) except InvalidID, e: raise if not os.path.exists(path): raise InvalidID(id) if os.path.isdir(path): raise libbe.storage.base.InvalidDirectory(id) f = open(path, "wb") f.write(value) f.close() self._vcs_update(self._u_rel_path(path)) def _commit(self, summary, body=None, allow_empty=False): 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() revision = self._vcs_commit(filename, allow_empty=allow_empty) temp_file.close() finally: os.remove(filename) return revision def revision_id(self, index=None): if index == None: return None try: if int(index) != index: raise InvalidRevision(index) except ValueError: raise InvalidRevision(index) revid = self._vcs_revision_id(index) if revid == None: raise libbe.storage.base.InvalidRevision(index) return revid def changed(self, revision): new,mod,rem = self._vcs_changed(revision) def paths_to_ids(paths): for p in paths: try: id = self._u_path_to_id(p) yield id except (SpacerCollision, InvalidPath): pass new_id = list(paths_to_ids(new)) mod_id = list(paths_to_ids(mod)) rem_id = list(paths_to_ids(rem)) return (new_id, mod_id, rem_id) 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.repo if 'verbose' not in kwargs: kwargs['verbose'] = self.verbose_invoke 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. """ try: ret = search_parent_directories(path, filename) except AssertionError, e: return None return ret def _u_find_id_from_manifest(self, id, manifest, revision=None): """ Search for the relative path to id using manifest, a list of all files. Returns None if the id is not found. """ be_dir = self._cached_path_id._spacer_dirs[0] be_dir_sep = self._cached_path_id._spacer_dirs[0] + os.path.sep files = [f for f in manifest if f.startswith(be_dir_sep)] for file in files: if not file.startswith(be_dir+os.path.sep): continue parts = file.split(os.path.sep) dir = parts.pop(0) # don't add the first spacer dir for part in parts[:-1]: dir = os.path.join(dir, part) if not dir in files: files.append(dir) for file in files: try: p_id = self._u_path_to_id(file) if p_id == id: return file except (SpacerCollision, InvalidPath): pass raise InvalidID(id, revision=revision) def _u_find_id(self, id, revision): """ Search for the relative path to id as of revision. Returns None if the id is not found. """ assert self._rooted == True be_dir = self._cached_path_id._spacer_dirs[0] stack = [(be_dir, be_dir)] while len(stack) > 0: path,long_id = stack.pop() if long_id.endswith('/'+id): return path if self._vcs_isdir(path, revision) == False: continue for child in self._vcs_listdir(path, revision): stack.append((os.path.join(path, child), '/'.join([long_id, child]))) raise InvalidID(id, revision=revision) def _u_path_to_id(self, path): return self._cached_path_id.id(path) 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' >>> vcs._u_rel_path("/a.b/c/", "/a.b/c") '.' >>> vcs._u_rel_path("/a.b/c/", "/a.b/c/") '.' >>> vcs._u_rel_path("./a", ".") 'a' """ if root == None: if self.repo == None: raise VCSNotRooted(self) root = self.repo path = os.path.abspath(path) absRoot = os.path.abspath(root) absRootSlashedDir = os.path.join(absRoot,"") if path in [absRoot, absRootSlashedDir]: return '.' if not path.startswith(absRootSlashedDir): raise InvalidPath(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.repo != None, "VCS not rooted" root = self.repo return os.path.abspath(os.path.join(root, path)) 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) def check_storage_version(self): version = self.storage_version() if version != libbe.storage.STORAGE_VERSION: upgrade.upgrade(self.repo, version) def storage_version(self, revision=None, path=None): """ Requires disk access. """ if path == None: path = os.path.join(self.repo, '.be', 'version') if not os.path.exists(path): raise libbe.storage.InvalidStorageVersion(None) if revision == None: # don't require connection return libbe.util.encoding.get_file_contents( path, decode=True).rstrip('\n') relpath = self._u_rel_path(path) contents = self._vcs_get_file_contents(relpath, revision=revision) if type(contents) != types.UnicodeType: contents = unicode(contents, self.encoding) return contents.strip() def _setup_storage_version(self): """ Requires disk access. """ assert self._rooted == True path = os.path.join(self.be_dir, 'version') if not os.path.exists(path): libbe.util.encoding.set_file_contents(path, libbe.storage.STORAGE_VERSION+'\n') self._vcs_add(self._u_rel_path(path)) if libbe.TESTING == True: class VCSTestCase (unittest.TestCase): """ Test cases for base VCS class (in addition to the Storage test cases). """ Class = VCS def __init__(self, *args, **kwargs): super(VCSTestCase, self).__init__(*args, **kwargs) self.dirname = None def setUp(self): """Set up test fixtures for Storage test case.""" super(VCSTestCase, self).setUp() self.dir = Dir() self.dirname = self.dir.path self.s = self.Class(repo=self.dirname) if self.s.installed() == True: self.s.init() self.s.connect() def tearDown(self): super(VCSTestCase, self).tearDown() if self.s.installed() == True: self.s.disconnect() self.s.destroy() self.dir.cleanup() class VCS_installed_TestCase (VCSTestCase): def test_installed(self): """See if the VCS is installed. """ self.failUnless(self.s.installed() == True, '%(name)s VCS not found' % vars(self.Class)) class VCS_detection_TestCase (VCSTestCase): def test_detection(self): """See if the VCS detects its installed repository """ if self.s.installed(): self.s.disconnect() self.failUnless(self.s._detect(self.dirname) == True, 'Did not detected %(name)s VCS after initialising' % vars(self.Class)) self.s.connect() def test_no_detection(self): """See if the VCS detects its installed repository """ if self.s.installed() and self.Class.name != 'None': self.s.disconnect() self.s.destroy() self.failUnless(self.s._detect(self.dirname) == False, 'Detected %(name)s VCS before initialising' % vars(self.Class)) self.s.init() self.s.connect() def test_vcs_repo_in_specified_root_path(self): """VCS root directory should be in specified root path.""" rp = os.path.realpath(self.s.repo) 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 self.s.installed(): user_id = self.s.get_user_id() if user_id == None: return name,email = libbe.ui.util.user.parse_user_id(user_id) if email != None: self.failUnless('@' in email, email) def make_vcs_testcase_subclasses(vcs_class, namespace): c = vcs_class() if c.installed(): if c.versioned == True: libbe.storage.base.make_versioned_storage_testcase_subclasses( vcs_class, namespace) else: libbe.storage.base.make_storage_testcase_subclasses( vcs_class, namespace) if namespace != sys.modules[__name__]: # 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) \ and c.Class == VCS] 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) make_vcs_testcase_subclasses(VCS, sys.modules[__name__]) unitsuite =unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()])