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#!/usr/bin/env python
# encoding: utf-8
# whoosh indexer daemon for rhodecode
# Copyright (C) 2009-2010 Marcin Kuzminski <marcin@python-works.com>
#
# 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; version 2
# of the License or (at your opinion) any later version of the license.
#
# 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.
"""
Created on Jan 26, 2010
@author: marcink
A deamon will read from task table and run tasks
"""
import sys
import os
from os.path import dirname as dn
from os.path import join as jn
#to get the rhodecode import
project_path = dn(dn(dn(dn(os.path.realpath(__file__)))))
sys.path.append(project_path)
from rhodecode.model.hg import HgModel
from rhodecode.lib.helpers import safe_unicode
from whoosh.index import create_in, open_dir
from shutil import rmtree
from rhodecode.lib.indexers import INDEX_EXTENSIONS, SCHEMA, IDX_NAME
from time import mktime
from vcs.exceptions import ChangesetError, RepositoryError
import logging
log = logging.getLogger('whooshIndexer')
# create logger
log.setLevel(logging.DEBUG)
log.propagate = False
# create console handler and set level to debug
ch = logging.StreamHandler()
ch.setLevel(logging.DEBUG)
# create formatter
formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
# add formatter to ch
ch.setFormatter(formatter)
# add ch to logger
log.addHandler(ch)
class WhooshIndexingDaemon(object):
"""
Deamon for atomic jobs
"""
def __init__(self, indexname='HG_INDEX', index_location=None,
repo_location=None):
self.indexname = indexname
self.index_location = index_location
if not index_location:
raise Exception('You have to provide index location')
self.repo_location = repo_location
if not repo_location:
raise Exception('You have to provide repositories location')
self.repo_paths = HgModel.repo_scan('/', self.repo_location, None, True)
self.initial = False
if not os.path.isdir(self.index_location):
os.mkdir(self.index_location)
log.info('Cannot run incremental index since it does not'
' yet exist running full build')
self.initial = True
def get_paths(self, repo):
"""
recursive walk in root dir and return a set of all path in that dir
based on repository walk function
"""
index_paths_ = set()
try:
for topnode, dirs, files in repo.walk('/', 'tip'):
for f in files:
index_paths_.add(jn(repo.path, f.path))
for dir in dirs:
for f in files:
index_paths_.add(jn(repo.path, f.path))
except RepositoryError:
pass
return index_paths_
def get_node(self, repo, path):
n_path = path[len(repo.path) + 1:]
node = repo.get_changeset().get_node(n_path)
return node
def get_node_mtime(self, node):
return mktime(node.last_changeset.date.timetuple())
def add_doc(self, writer, path, repo):
"""Adding doc to writer"""
node = self.get_node(repo, path)
#we just index the content of chosen files
if node.extension in INDEX_EXTENSIONS:
log.debug(' >> %s [WITH CONTENT]' % path)
u_content = node.content
else:
log.debug(' >> %s' % path)
#just index file name without it's content
u_content = u''
writer.add_document(owner=unicode(repo.contact),
repository=safe_unicode(repo.name),
path=safe_unicode(path),
content=u_content,
modtime=self.get_node_mtime(node),
extension=node.extension)
def build_index(self):
if os.path.exists(self.index_location):
log.debug('removing previous index')
rmtree(self.index_location)
if not os.path.exists(self.index_location):
os.mkdir(self.index_location)
idx = create_in(self.index_location, SCHEMA, indexname=IDX_NAME)
writer = idx.writer()
for cnt, repo in enumerate(self.repo_paths.values()):
log.debug('building index @ %s' % repo.path)
for idx_path in self.get_paths(repo):
self.add_doc(writer, idx_path, repo)
log.debug('>> COMMITING CHANGES <<')
writer.commit(merge=True)
log.debug('>>> FINISHED BUILDING INDEX <<<')
def update_index(self):
log.debug('STARTING INCREMENTAL INDEXING UPDATE')
idx = open_dir(self.index_location, indexname=self.indexname)
# The set of all paths in the index
indexed_paths = set()
# The set of all paths we need to re-index
to_index = set()
reader = idx.reader()
writer = idx.writer()
# Loop over the stored fields in the index
for fields in reader.all_stored_fields():
indexed_path = fields['path']
indexed_paths.add(indexed_path)
repo = self.repo_paths[fields['repository']]
try:
node = self.get_node(repo, indexed_path)
except ChangesetError:
# This file was deleted since it was indexed
log.debug('removing from index %s' % indexed_path)
writer.delete_by_term('path', indexed_path)
else:
# Check if this file was changed since it was indexed
indexed_time = fields['modtime']
mtime = self.get_node_mtime(node)
if mtime > indexed_time:
# The file has changed, delete it and add it to the list of
# files to reindex
log.debug('adding to reindex list %s' % indexed_path)
writer.delete_by_term('path', indexed_path)
to_index.add(indexed_path)
# Loop over the files in the filesystem
# Assume we have a function that gathers the filenames of the
# documents to be indexed
for repo in self.repo_paths.values():
for path in self.get_paths(repo):
if path in to_index or path not in indexed_paths:
# This is either a file that's changed, or a new file
# that wasn't indexed before. So index it!
self.add_doc(writer, path, repo)
log.debug('re indexing %s' % path)
log.debug('>> COMMITING CHANGES <<')
writer.commit(merge=True)
log.debug('>>> FINISHED REBUILDING INDEX <<<')
def run(self, full_index=False):
"""Run daemon"""
if full_index or self.initial:
self.build_index()
else:
self.update_index()
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