X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/03c5ba6e50339d7bc470eb6d7f051483eff1e96b..404bfe407798a8a83fa02dc1742a315400b7c00b:/lib/vstorage.py diff --git a/lib/vstorage.py b/lib/vstorage.py index 02f05039..b4acaf3a 100644 --- a/lib/vstorage.py +++ b/lib/vstorage.py @@ -1,4 +1,8 @@ # -*- coding: utf-8 -*- +# +# This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later. +# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. +# import os import tempfile import datetime @@ -19,9 +23,9 @@ import mercurial.revlog import mercurial.util -def urlquote(url, safe = '/'): - """Quotes URL - +def urlquote(url, safe='/'): + """Quotes URL + >>> urlquote(u'Za\u017c\xf3\u0142\u0107 g\u0119\u015bl\u0105 ja\u017a\u0144') 'Za%C5%BC%C3%B3%C5%82%C4%87_g%C4%99%C5%9Bl%C4%85_ja%C5%BA%C5%84' """ @@ -29,8 +33,8 @@ def urlquote(url, safe = '/'): def urlunquote(url): - """Unqotes URL - + """Unqotes URL + # >>> urlunquote('Za%C5%BC%C3%B3%C5%82%C4%87_g%C4%99%C5%9Bl%C4%85_ja%C5%BA%C5%84') # u'Za\u017c\xf3\u0142\u0107 g\u0119\u015bl\u0105 ja\u017a\u0144' """ @@ -55,10 +59,11 @@ def with_working_copy_locked(func): wlock = self.repo.wlock() try: return func(self, *args, **kwargs) - finally: + finally: wlock.release() return wrapped + def with_storage_locked(func): """A decorator for locking the repository when calling a method.""" @@ -68,10 +73,11 @@ def with_storage_locked(func): lock = self.repo.lock() try: return func(self, *args, **kwargs) - finally: + finally: lock.release() return wrapped + def guess_mime(file_name): """ Guess file's mime type based on extension. @@ -91,7 +97,7 @@ def guess_mime(file_name): 'archive/gzip' """ - mime, encoding = mimetypes.guess_type(file_name, strict = False) + mime, encoding = mimetypes.guess_type(file_name, strict=False) if encoding: mime = 'archive/%s' % encoding if mime is None: @@ -109,7 +115,7 @@ class VersionedStorage(object): change history, using Mercurial repository as the storage method. """ - def __init__(self, path, charset = None): + def __init__(self, path, charset=None): """ Takes the path to the directory where the pages are to be kept. If the directory doen't exist, it will be created. If it's inside @@ -122,38 +128,38 @@ class VersionedStorage(object): if not os.path.exists(self.path): os.makedirs(self.path) self.repo_path = find_repo_path(self.path) - + self.ui = mercurial.ui.ui() self.ui.quiet = True self.ui._report_untrusted = False self.ui.setconfig('ui', 'interactive', False) - + if self.repo_path is None: self.repo_path = self.path create = True else: create = False - + self.repo_prefix = self.path[len(self.repo_path):].strip('/') self.repo = mercurial.hg.repository(self.ui, self.repo_path, - create = create) + create=create) def reopen(self): """Close and reopen the repo, to make sure we are up to date.""" self.repo = mercurial.hg.repository(self.ui, self.repo_path) def _file_path(self, title): - return os.path.join(self.path, urlquote(title, safe = '')) + return os.path.join(self.path, urlquote(title, safe='')) def _title_to_file(self, title): - return os.path.join(self.repo_prefix, urlquote(title, safe = '')) + return os.path.join(self.repo_prefix, urlquote(title, safe='')) def _file_to_title(self, filename): assert filename.startswith(self.repo_prefix) name = filename[len(self.repo_prefix):].strip('/') return urlunquote(name) - def __contains__(self, title): + def __contains__(self, title): return urlquote(title) in self.repo['tip'] def __iter__(self): @@ -191,40 +197,42 @@ class VersionedStorage(object): @with_working_copy_locked @with_storage_locked - def save_file(self, title, file_name, author = u'', comment = u'', parent = None): + def save_file(self, title, file_name, **kwargs): """Save an existing file as specified page.""" - user = author.encode('utf-8') or u'anonymous'.encode('utf-8') - text = comment.encode('utf-8') or u'comment'.encode('utf-8') - + + author = kwargs.get('author', u'anonymous').encode('utf-8') + comment = kwargs.get('comment', u'Empty comment.').encode('utf-8') + parent = kwargs.get('parent', None) + repo_file = self._title_to_file(title) file_path = self._file_path(title) mercurial.util.rename(file_name, file_path) changectx = self._changectx() - + try: filectx_tip = changectx[repo_file] current_page_rev = filectx_tip.filerev() except mercurial.revlog.LookupError: self.repo.add([repo_file]) current_page_rev = -1 - + if parent is not None and current_page_rev != parent: - msg = self.merge_changes(changectx, repo_file, text, user, parent) - user = '' - text = msg.encode('utf-8') - - self._commit([repo_file], text, user) - - + msg = self.merge_changes(changectx, repo_file, comment, author, parent) + author = '' + comment = msg.encode('utf-8') + + self._commit([repo_file], comment, author) + def save_data(self, title, data, **kwargs): """Save data as specified page.""" try: - temp_path = tempfile.mkdtemp(dir = self.path) + temp_path = tempfile.mkdtemp(dir=self.path) file_path = os.path.join(temp_path, 'saved') f = open(file_path, "wb") f.write(data) f.close() - self.save_file(title = title, file_name = file_path, **kwargs) + + return self.save_file(title=title, file_name=file_path, **kwargs) finally: try: os.unlink(file_path) @@ -235,28 +243,18 @@ class VersionedStorage(object): except OSError: pass - def save_text(self, text, **kwargs): - """Save text as specified page, encoded to charset.""" - self.save_data(data = text.encode(self.charset), **kwargs) - + def save_text(self, **kwargs): + """Save text as specified page, encoded to charset.""" + text = kwargs.pop('text') + return self.save_data(data=text.encode(self.charset), **kwargs) - def _commit(self, files, text, user): + def _commit(self, files, comment, user): match = mercurial.match.exact(self.repo_path, '', list(files)) - return self.repo.commit(match = match, text = text, user = user, force = True) - - def page_text(self, title): - """Read unicode text of a page.""" - data = self.open_page(title).read() - text = unicode(data, self.charset, 'replace') - return text - - def page_lines(self, page): - for data in page: - yield unicode(data, self.charset, 'replace') + return self.repo.commit(match=match, text=comment, user=user, force=True) @with_working_copy_locked @with_storage_locked - def delete_page(self, title, author = u'', comment = u''): + def delete_page(self, title, author=u'', comment=u''): user = author.encode('utf-8') or 'anon' text = comment.encode('utf-8') or 'deleted' repo_file = self._title_to_file(title) @@ -268,49 +266,54 @@ class VersionedStorage(object): self.repo.remove([repo_file]) self._commit([repo_file], text, user) - @with_working_copy_locked - def open_page(self, title): - if title not in self: - raise DocumentNotFound() - - path = self._title_to_file(title) - logger.debug("Opening page %s", path) + def page_text(self, title, revision=None): + """Read unicode text of a page.""" + ctx = self._find_filectx(title, revision) + + if ctx is None: + raise DocumentNotFound(title) + + return ctx.data().decode(self.charset, 'replace'), ctx.filerev() + + def page_text_by_tag(self, title, tag): + """Read unicode text of a taged page.""" + fname = self._title_to_file(title) + tag = u"{fname}#{tag}".format(**locals()).encode('utf-8') + try: - return self.repo.wfile(path, 'rb') - except IOError: - logger.exception("Failed to open page %s", title) - raise DocumentNotFound() + ctx = self.repo[tag][fname] + return ctx.data().decode(self.charset, 'replace'), ctx.filerev() + except IndexError: + raise DocumentNotFound(fname) @with_working_copy_locked def page_file_meta(self, title): """Get page's inode number, size and last modification time.""" try: - (st_mode, st_ino, st_dev, st_nlink, st_uid, st_gid, st_size, - st_atime, st_mtime, st_ctime) = os.stat(self._file_path(title)) + (_st_mode, st_ino, _st_dev, _st_nlink, _st_uid, _st_gid, st_size, + _st_atime, st_mtime, _st_ctime) = os.stat(self._file_path(title)) except OSError: return 0, 0, 0 return st_ino, st_size, st_mtime - + @with_working_copy_locked - def page_meta(self, title): + def page_meta(self, title, revision=None): """Get page's revision, date, last editor and his edit comment.""" - if not title in self: - raise DocumentNotFound() + fctx = self._find_filectx(title, revision) - filectx_tip = self._find_filectx(title) - if filectx_tip is None: - raise DocumentNotFound() - rev = filectx_tip.filerev() - filectx = filectx_tip.filectx(rev) - date = datetime.datetime.fromtimestamp(filectx.date()[0]) - author = unicode(filectx.user(), "utf-8", - 'replace').split('<')[0].strip() - comment = unicode(filectx.description(), "utf-8", 'replace') - return rev, date, author, comment + if fctx is None: + raise DocumentNotFound(title) + + return { + "revision": fctx.filerev(), + "date": datetime.datetime.fromtimestamp(fctx.date()[0]), + "author": fctx.user().decode("utf-8", 'replace'), + "comment": fctx.description().decode("utf-8", 'replace'), + } def repo_revision(self): return self.repo['tip'].rev() - + def _changectx(self): return self.repo['tip'] @@ -321,53 +324,72 @@ class VersionedStorage(object): """ return guess_mime(self._file_path(title)) - def _find_filectx(self, title): + def _find_filectx(self, title, rev=None): """Find the last revision in which the file existed.""" - repo_file = self._title_to_file(title) - changectx = self._changectx() + changectx = self._changectx() # start with tip + visited = set() + stack = [changectx] + visited.add(changectx) + while repo_file not in changectx: if not stack: - return None + raise DocumentNotFound(title) + changectx = stack.pop() for parent in changectx.parents(): - if parent != changectx: + if parent not in visited: stack.append(parent) - return changectx[repo_file] + visited.add(parent) + + try: + fctx = changectx[repo_file] + + if rev is not None: + fctx = fctx.filectx(rev) + fctx.filerev() + + return fctx + except (IndexError, LookupError) as e: + raise DocumentNotFound(title) def page_history(self, title): """Iterate over the page's history.""" filectx_tip = self._find_filectx(title) - if filectx_tip is None: - return + maxrev = filectx_tip.filerev() minrev = 0 for rev in range(maxrev, minrev - 1, -1): filectx = filectx_tip.filectx(rev) date = datetime.datetime.fromtimestamp(filectx.date()[0]) - author = unicode(filectx.user(), "utf-8", - 'replace').split('<')[0].strip() - comment = unicode(filectx.description(), "utf-8", 'replace') - yield {"version": rev, "date": date, "author": author, "description": comment} + author = filectx.user().decode('utf-8', 'replace') + comment = filectx.description().decode("utf-8", 'replace') + tags = [t.rsplit('#', 1)[-1] for t in filectx.changectx().tags() if '#' in t] + + yield { + "version": rev, + "date": date, + "author": author, + "description": comment, + "tag": tags, + } - def page_revision(self, title, rev): - """Get unicode contents of specified revision of the page.""" + @with_working_copy_locked + def add_page_tag(self, title, rev, tag, user, doctag=True): + ctitle = self._title_to_file(title) - filectx_tip = self._find_filectx(title) - if filectx_tip is None: - raise DocumentNotFound() - try: - data = filectx_tip.filectx(rev).data() - except IndexError: - raise DocumentNotFound() - return data + if doctag: + tag = u"{ctitle}#{tag}".format(**locals()).encode('utf-8') + + message = u"Assigned tag {tag!r} to version {rev!r} of {ctitle!r}".format(**locals()).encode('utf-8') - def revision_text(self, title, rev): - data = self.page_revision(title, rev) - text = unicode(data, self.charset, 'replace') - return text + fctx = self._find_filectx(title, rev) + self.repo.tag( + names=tag, node=fctx.node(), local=False, + user=user, message=message, date=None, + ) def history(self): """Iterate over the history of entire wiki.""" @@ -378,9 +400,8 @@ class VersionedStorage(object): for wiki_rev in range(maxrev, minrev - 1, -1): change = self.repo.changectx(wiki_rev) date = datetime.datetime.fromtimestamp(change.date()[0]) - author = unicode(change.user(), "utf-8", - 'replace').split('<')[0].strip() - comment = unicode(change.description(), "utf-8", 'replace') + author = change.user().decode('utf-8', 'replace') + comment = change.description().decode("utf-8", 'replace') for repo_file in change.files(): if repo_file.startswith(self.repo_prefix): title = self._file_to_title(repo_file) @@ -393,7 +414,7 @@ class VersionedStorage(object): def all_pages(self): tip = self.repo['tip'] """Iterate over the titles of all pages in the wiki.""" - return [ urlunquote(filename) for filename in tip ] + return [urlunquote(filename) for filename in tip] def changed_since(self, rev): """Return all pages that changed since specified repository revision."""