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fleshing out the Upgrade doc, and modified the references to Cheeseshop in the Install doc
fleshing out the Upgrade doc, and modified the references to Cheeseshop in the Install doc

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__init__.py
271 lines | 9.6 KiB | text/x-python | PythonLexer
# -*- coding: utf-8 -*-
"""
rhodecode.lib.indexers.__init__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Whoosh indexing module for RhodeCode
:created_on: Aug 17, 2010
:author: marcink
:copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>
:license: GPLv3, see COPYING for more details.
"""
# 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 3 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, see <http://www.gnu.org/licenses/>.
import os
import sys
import traceback
import logging
from os.path import dirname as dn, join as jn
#to get the rhodecode import
sys.path.append(dn(dn(dn(os.path.realpath(__file__)))))
from string import strip
from shutil import rmtree
from whoosh.analysis import RegexTokenizer, LowercaseFilter, StopFilter
from whoosh.fields import TEXT, ID, STORED, NUMERIC, BOOLEAN, Schema, FieldType
from whoosh.index import create_in, open_dir
from whoosh.formats import Characters
from whoosh.highlight import highlight, HtmlFormatter, ContextFragmenter
from webhelpers.html.builder import escape, literal
from sqlalchemy import engine_from_config
from rhodecode.model import init_model
from rhodecode.model.scm import ScmModel
from rhodecode.model.repo import RepoModel
from rhodecode.config.environment import load_environment
from rhodecode.lib.utils2 import LazyProperty
from rhodecode.lib.utils import BasePasterCommand, Command, add_cache,\
load_rcextensions
log = logging.getLogger(__name__)
# CUSTOM ANALYZER wordsplit + lowercase filter
ANALYZER = RegexTokenizer(expression=r"\w+") | LowercaseFilter()
#INDEX SCHEMA DEFINITION
SCHEMA = Schema(
fileid=ID(unique=True),
owner=TEXT(),
repository=TEXT(stored=True),
path=TEXT(stored=True),
content=FieldType(format=Characters(), analyzer=ANALYZER,
scorable=True, stored=True),
modtime=STORED(),
extension=TEXT(stored=True)
)
IDX_NAME = 'HG_INDEX'
FORMATTER = HtmlFormatter('span', between='\n<span class="break">...</span>\n')
FRAGMENTER = ContextFragmenter(200)
CHGSETS_SCHEMA = Schema(
raw_id=ID(unique=True, stored=True),
date=NUMERIC(stored=True),
last=BOOLEAN(),
owner=TEXT(),
repository=ID(unique=True, stored=True),
author=TEXT(stored=True),
message=FieldType(format=Characters(), analyzer=ANALYZER,
scorable=True, stored=True),
parents=TEXT(),
added=TEXT(),
removed=TEXT(),
changed=TEXT(),
)
CHGSET_IDX_NAME = 'CHGSET_INDEX'
class MakeIndex(BasePasterCommand):
max_args = 1
min_args = 1
usage = "CONFIG_FILE"
summary = "Creates index for full text search given configuration file"
group_name = "RhodeCode"
takes_config_file = -1
parser = Command.standard_parser(verbose=True)
def command(self):
logging.config.fileConfig(self.path_to_ini_file)
from pylons import config
add_cache(config)
engine = engine_from_config(config, 'sqlalchemy.db1.')
init_model(engine)
index_location = config['index_dir']
repo_location = self.options.repo_location \
if self.options.repo_location else RepoModel().repos_path
repo_list = map(strip, self.options.repo_list.split(',')) \
if self.options.repo_list else None
repo_update_list = map(strip, self.options.repo_update_list.split(',')) \
if self.options.repo_update_list else None
load_rcextensions(config['here'])
#======================================================================
# WHOOSH DAEMON
#======================================================================
from rhodecode.lib.pidlock import LockHeld, DaemonLock
from rhodecode.lib.indexers.daemon import WhooshIndexingDaemon
try:
l = DaemonLock(file_=jn(dn(dn(index_location)), 'make_index.lock'))
WhooshIndexingDaemon(index_location=index_location,
repo_location=repo_location,
repo_list=repo_list,
repo_update_list=repo_update_list)\
.run(full_index=self.options.full_index)
l.release()
except LockHeld:
sys.exit(1)
def update_parser(self):
self.parser.add_option('--repo-location',
action='store',
dest='repo_location',
help="Specifies repositories location to index OPTIONAL",
)
self.parser.add_option('--index-only',
action='store',
dest='repo_list',
help="Specifies a comma separated list of repositores "
"to build index on. If not given all repositories "
"are scanned for indexing. OPTIONAL",
)
self.parser.add_option('--update-only',
action='store',
dest='repo_update_list',
help="Specifies a comma separated list of repositores "
"to re-build index on. OPTIONAL",
)
self.parser.add_option('-f',
action='store_true',
dest='full_index',
help="Specifies that index should be made full i.e"
" destroy old and build from scratch",
default=False)
class WhooshResultWrapper(object):
def __init__(self, search_type, searcher, matcher, highlight_items,
repo_location):
self.search_type = search_type
self.searcher = searcher
self.matcher = matcher
self.highlight_items = highlight_items
self.fragment_size = 200
self.repo_location = repo_location
@LazyProperty
def doc_ids(self):
docs_id = []
while self.matcher.is_active():
docnum = self.matcher.id()
chunks = [offsets for offsets in self.get_chunks()]
docs_id.append([docnum, chunks])
self.matcher.next()
return docs_id
def __str__(self):
return '<%s at %s>' % (self.__class__.__name__, len(self.doc_ids))
def __repr__(self):
return self.__str__()
def __len__(self):
return len(self.doc_ids)
def __iter__(self):
"""
Allows Iteration over results,and lazy generate content
*Requires* implementation of ``__getitem__`` method.
"""
for docid in self.doc_ids:
yield self.get_full_content(docid)
def __getitem__(self, key):
"""
Slicing of resultWrapper
"""
i, j = key.start, key.stop
slices = []
for docid in self.doc_ids[i:j]:
slices.append(self.get_full_content(docid))
return slices
def get_full_content(self, docid):
res = self.searcher.stored_fields(docid[0])
log.debug('result: %s' % res)
if self.search_type == 'content':
full_repo_path = jn(self.repo_location, res['repository'])
f_path = res['path'].split(full_repo_path)[-1]
f_path = f_path.lstrip(os.sep)
content_short = self.get_short_content(res, docid[1])
res.update({'content_short': content_short,
'content_short_hl': self.highlight(content_short),
'f_path': f_path
})
elif self.search_type == 'path':
full_repo_path = jn(self.repo_location, res['repository'])
f_path = res['path'].split(full_repo_path)[-1]
f_path = f_path.lstrip(os.sep)
res.update({'f_path': f_path})
elif self.search_type == 'message':
res.update({'message_hl': self.highlight(res['message'])})
log.debug('result: %s' % res)
return res
def get_short_content(self, res, chunks):
return ''.join([res['content'][chunk[0]:chunk[1]] for chunk in chunks])
def get_chunks(self):
"""
Smart function that implements chunking the content
but not overlap chunks so it doesn't highlight the same
close occurrences twice.
:param matcher:
:param size:
"""
memory = [(0, 0)]
if self.matcher.supports('positions'):
for span in self.matcher.spans():
start = span.startchar or 0
end = span.endchar or 0
start_offseted = max(0, start - self.fragment_size)
end_offseted = end + self.fragment_size
if start_offseted < memory[-1][1]:
start_offseted = memory[-1][1]
memory.append((start_offseted, end_offseted,))
yield (start_offseted, end_offseted,)
def highlight(self, content, top=5):
if self.search_type not in ['content', 'message']:
return ''
hl = highlight(
text=content,
terms=self.highlight_items,
analyzer=ANALYZER,
fragmenter=FRAGMENTER,
formatter=FORMATTER,
top=top
)
return hl