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localrepo: add repository feature when repo can be stream cloned...
localrepo: add repository feature when repo can be stream cloned Right now, the wire protocol server assumes all repository objects can be stream cloned (unless the stream clone feature is disabled via config option). But not all storage backends or repository objects may support stream clone. This commit defines a repository feature denoting whether stream clone is supported. The feature is defined for revlog-based repositories, which should currently be "all repositories." Differential Revision: https://phab.mercurial-scm.org/D4852

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r37829:51dee6fa stable
r40063:83146d17 default
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fileindexapi.py
110 lines | 3.4 KiB | text/x-python | PythonLexer
# Infinite push
#
# Copyright 2016 Facebook, Inc.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""
[infinitepush]
# Server-side option. Used only if indextype=disk.
# Filesystem path to the index store
indexpath = PATH
"""
from __future__ import absolute_import
import os
from mercurial import util
from mercurial.utils import stringutil
from . import indexapi
class fileindexapi(indexapi.indexapi):
def __init__(self, repo):
super(fileindexapi, self).__init__()
self._repo = repo
root = repo.ui.config('infinitepush', 'indexpath')
if not root:
root = os.path.join('scratchbranches', 'index')
self._nodemap = os.path.join(root, 'nodemap')
self._bookmarkmap = os.path.join(root, 'bookmarkmap')
self._metadatamap = os.path.join(root, 'nodemetadatamap')
self._lock = None
def __enter__(self):
self._lock = self._repo.wlock()
return self
def __exit__(self, exc_type, exc_val, exc_tb):
if self._lock:
self._lock.__exit__(exc_type, exc_val, exc_tb)
def addbundle(self, bundleid, nodesctx):
for node in nodesctx:
nodepath = os.path.join(self._nodemap, node.hex())
self._write(nodepath, bundleid)
def addbookmark(self, bookmark, node):
bookmarkpath = os.path.join(self._bookmarkmap, bookmark)
self._write(bookmarkpath, node)
def addmanybookmarks(self, bookmarks):
for bookmark, node in bookmarks.items():
self.addbookmark(bookmark, node)
def deletebookmarks(self, patterns):
for pattern in patterns:
for bookmark, _ in self._listbookmarks(pattern):
bookmarkpath = os.path.join(self._bookmarkmap, bookmark)
self._delete(bookmarkpath)
def getbundle(self, node):
nodepath = os.path.join(self._nodemap, node)
return self._read(nodepath)
def getnode(self, bookmark):
bookmarkpath = os.path.join(self._bookmarkmap, bookmark)
return self._read(bookmarkpath)
def getbookmarks(self, query):
return dict(self._listbookmarks(query))
def saveoptionaljsonmetadata(self, node, jsonmetadata):
vfs = self._repo.vfs
vfs.write(os.path.join(self._metadatamap, node), jsonmetadata)
def _listbookmarks(self, pattern):
if pattern.endswith('*'):
pattern = 're:^' + pattern[:-1] + '.*'
kind, pat, matcher = stringutil.stringmatcher(pattern)
prefixlen = len(self._bookmarkmap) + 1
for dirpath, _, books in self._repo.vfs.walk(self._bookmarkmap):
for book in books:
bookmark = os.path.join(dirpath, book)[prefixlen:]
bookmark = util.pconvert(bookmark)
if not matcher(bookmark):
continue
yield bookmark, self._read(os.path.join(dirpath, book))
def _write(self, path, value):
vfs = self._repo.vfs
dirname = vfs.dirname(path)
if not vfs.exists(dirname):
vfs.makedirs(dirname)
vfs.write(path, value)
def _read(self, path):
vfs = self._repo.vfs
if not vfs.exists(path):
return None
return vfs.read(path)
def _delete(self, path):
vfs = self._repo.vfs
if not vfs.exists(path):
return
return vfs.unlink(path)