# -*- 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
import mimetypes
import urllib
+import functools
+
+import logging
+logger = logging.getLogger('fnp.hazlenut.vstorage')
# Note: we have to set these before importing Mercurial
os.environ['HGENCODING'] = 'utf-8'
import mercurial.util
-def urlquote(url, safe='/'):
+def urlquote(url, safe = '/'):
"""Quotes URL
>>> urlquote(u'Za\u017c\xf3\u0142\u0107 g\u0119\u015bl\u0105 ja\u017a\u0144')
return path
-def locked_repo(func):
+def with_working_copy_locked(func):
"""A decorator for locking the repository when calling a method."""
- def new_func(self, *args, **kwargs):
+ @functools.wraps(func)
+ def wrapped(self, *args, **kwargs):
"""Wrap the original function in locks."""
-
wlock = self.repo.wlock()
- lock = self.repo.lock()
try:
- func(self, *args, **kwargs)
- finally:
- lock.release()
+ return func(self, *args, **kwargs)
+ finally:
wlock.release()
+ return wrapped
- return new_func
+def with_storage_locked(func):
+ """A decorator for locking the repository when calling a method."""
+ @functools.wraps(func)
+ def wrapped(self, *args, **kwargs):
+ """Wrap the original function in locks."""
+ lock = self.repo.lock()
+ try:
+ return func(self, *args, **kwargs)
+ finally:
+ lock.release()
+ return wrapped
def guess_mime(file_name):
"""
Guess file's mime type based on extension.
- Default ot text/x-wiki for files without an extension.
+ Default of text/x-wiki for files without an extension.
>>> guess_mime('something.txt')
'text/plain'
'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:
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
if not os.path.exists(self.path):
os.makedirs(self.path)
self.repo_path = find_repo_path(self.path)
- try:
- self.ui = mercurial.ui.ui(report_untrusted=False,
- interactive=False, quiet=True)
- except TypeError:
- # Mercurial 1.3 changed the way we setup the ui object.
- self.ui = mercurial.ui.ui()
- self.ui.quiet = True
- self.ui._report_untrusted = False
- self.ui.setconfig('ui', 'interactive', False)
+
+ 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):
- return urlquote(title) in self.repo.dirstate
+ def __contains__(self, title):
+ return urlquote(title) in self.repo['tip']
def __iter__(self):
- return self.all_pages()
-
+ return self.all_pages()
+
def merge_changes(self, changectx, repo_file, text, user, parent):
"""Commits and merges conflicting changes in the repository."""
tip_node = changectx.node()
self.repo.dirstate.setparents(parent_node)
node = self._commit([repo_file], text, user)
-
+
partial = lambda filename: repo_file == filename
-
+
# If p1 is equal to p2, there is no work to do. Even the dirstate is correct.
p1, p2 = self.repo[None].parents()[0], self.repo[tip_node]
if p1 == p2:
return text
-
+
try:
mercurial.merge.update(self.repo, tip_node, True, False, partial)
msg = 'merge of edit conflict'
except mercurial.util.Abort:
msg = 'failed merge of edit conflict'
-
+
self.repo.dirstate.setparents(tip_node, node)
# Mercurial 1.1 and later need updating the merge state
try:
pass
return msg
- @locked_repo
- def save_file(self, title, file_name, author=u'', comment=u'', parent=None):
+ @with_working_copy_locked
+ @with_storage_locked
+ def save_file(self, title, file_name, author = u'', comment = u'', parent = None):
"""Save an existing file as specified page."""
-
- user = author.encode('utf-8') or u'anon'.encode('utf-8')
+ user = author.encode('utf-8') or u'anonymous'.encode('utf-8')
text = comment.encode('utf-8') or u'comment'.encode('utf-8')
+
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 = '<wiki>'
text = msg.encode('utf-8')
+
self._commit([repo_file], text, user)
-
-
- def _commit(self, files, text, user):
- try:
- return self.repo.commit(files=files, text=text, user=user,
- force=True, empty_ok=True)
- except TypeError:
- # Mercurial 1.3 doesn't accept empty_ok or files parameter
- match = mercurial.match.exact(self.repo_path, '', list(files))
- return self.repo.commit(match=match, text=text, user=user,
- force=True)
-
-
- def save_data(self, title, data, author=u'', comment=u'', parent=None):
+
+
+ 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, file_path, author, comment, parent)
+ self.save_file(title = title, file_name = file_path, **kwargs)
finally:
try:
os.unlink(file_path)
except OSError:
pass
- def save_text(self, title, text, author=u'', comment=u'', parent=None):
- """Save text as specified page, encoded to charset."""
+ def save_text(self, text, **kwargs):
+ """Save text as specified page, encoded to charset."""
+ self.save_data(data = text.encode(self.charset), **kwargs)
- data = text.encode(self.charset)
- self.save_data(title, data, author, comment, parent)
+ def _commit(self, files, text, 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
for data in page:
yield unicode(data, self.charset, 'replace')
- @locked_repo
- def delete_page(self, title, author=u'', comment=u''):
+ @with_working_copy_locked
+ @with_storage_locked
+ 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)
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)
try:
- return open(self._file_path(title), "rb")
+ return self.repo.wfile(path, 'rb')
except IOError:
+ logger.exception("Failed to open page %s", title)
raise DocumentNotFound()
+ @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))
except OSError:
return 0, 0, 0
return st_ino, st_size, st_mtime
-
+
+ @with_working_copy_locked
def page_meta(self, title):
"""Get page's revision, date, last editor and his edit comment."""
if not title in self:
raise DocumentNotFound()
-
+
filectx_tip = self._find_filectx(title)
if filectx_tip is None:
raise DocumentNotFound()
return rev, date, author, comment
def repo_revision(self):
- return self._changectx().rev()
+ return self.repo['tip'].rev()
+
+ def _changectx(self):
+ return self.repo['tip']
def page_mime(self, title):
"""
Guess page's mime type based on corresponding file name.
Default ot text/x-wiki for files without an extension.
"""
- return guess_type(self._file_path(title))
-
- def _changectx(self):
- """Get the changectx of the tip."""
- try:
- # This is for Mercurial 1.0
- return self.repo.changectx()
- except TypeError:
- # Mercurial 1.3 (and possibly earlier) needs an argument
- return self.repo.changectx('tip')
+ return guess_mime(self._file_path(title))
def _find_filectx(self, title):
"""Find the last revision in which the file existed."""
return
maxrev = filectx_tip.filerev()
minrev = 0
- for rev in range(maxrev, minrev-1, -1):
+ 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 rev, date, author, comment
+ yield {"version": rev, "date": date, "author": author, "description": comment}
def page_revision(self, title, rev):
"""Get unicode contents of specified revision of the page."""
changectx = self._changectx()
maxrev = changectx.rev()
minrev = 0
- for wiki_rev in range(maxrev, minrev-1, -1):
+ 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",
yield title, rev, date, author, comment
def all_pages(self):
+ tip = self.repo['tip']
"""Iterate over the titles of all pages in the wiki."""
- status = self.repo.status(self.repo[None], None, None, True, True, True)
- clean_files = status[6]
- for filename in clean_files:
- yield urlunquote(filename)
+ return [ urlunquote(filename) for filename in tip ]
def changed_since(self, rev):
"""Return all pages that changed since specified repository revision."""
current = self.repo.lookup('tip')
status = self.repo.status(current, last)
modified, added, removed, deleted, unknown, ignored, clean = status
- for filename in modified+added+removed+deleted:
+ for filename in modified + added + removed + deleted:
if filename.startswith(self.repo_prefix):
yield self._file_to_title(filename)
fnp / redakcja.git / blobdiff