lucene/dev-tools/scripts/addBackcompatIndexes.py

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# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# For usage information, see:
#
# http://wiki.apache.org/lucene-java/ReleaseTodo#Generate_Backcompat_Indexes
import os
import sys
sys.path.append(os.path.dirname(__file__))
import scriptutil
import argparse
import urllib.error
import urllib.request
import re
import shutil
def create_and_add_index(source, indextype, index_version, current_version, temp_dir):
if indextype in ('cfs', 'nocfs'):
dirname = 'index.%s' % indextype
else:
dirname = indextype
prefix = 'index' if current_version.is_back_compat_with(index_version) else 'unsupported'
filename = '%s.%s-%s.zip' % (prefix, index_version, indextype)
print(' creating %s...' % filename, end='', flush=True)
module = 'backward-codecs'
index_dir = os.path.join('lucene', module, 'src/test/org/apache/lucene/index')
test_file = os.path.join(index_dir, filename)
if os.path.exists(os.path.join(index_dir, filename)):
print('uptodate')
return
test = {
'cfs': 'testCreateCFS',
'nocfs': 'testCreateNoCFS'
}[indextype]
ant_args = ' '.join([
'-Dtests.bwcdir=%s' % temp_dir,
'-Dtests.codec=default',
'-Dtests.useSecurityManager=false',
'-Dtestcase=TestBackwardsCompatibility',
'-Dtestmethod=%s' % test
])
base_dir = os.getcwd()
bc_index_dir = os.path.join(temp_dir, dirname)
bc_index_file = os.path.join(bc_index_dir, filename)
if os.path.exists(bc_index_file):
print('alreadyexists')
else:
if os.path.exists(bc_index_dir):
shutil.rmtree(bc_index_dir)
os.chdir(os.path.join(source, module))
scriptutil.run('ant test %s' % ant_args)
os.chdir(bc_index_dir)
scriptutil.run('zip %s *' % filename)
print('done')
print(' adding %s...' % filename, end='', flush=True)
scriptutil.run('cp %s %s' % (bc_index_file, os.path.join(base_dir, index_dir)))
os.chdir(base_dir)
output = scriptutil.run('svn status %s' % test_file)
if not output.strip():
# make sure to only add if the file isn't already in svn (we might be regenerating)
scriptutil.run('svn add %s' % test_file)
os.chdir(base_dir)
scriptutil.run('rm -rf %s' % bc_index_dir)
print('done')
def update_backcompat_tests(types, index_version, current_version):
print(' adding new indexes to backcompat tests...', end='', flush=True)
module = 'lucene/backward-codecs'
filename = '%s/src/test/org/apache/lucene/index/TestBackwardsCompatibility.java' % module
matcher = re.compile(r'final static String\[\] oldNames = {|};' if current_version.is_back_compat_with(index_version)
else r'final String\[\] unsupportedNames = {|};')
def find_version(x):
x = x.strip()
end = x.index("-")
return scriptutil.Version.parse(x[1:end])
class Edit(object):
start = None
def __call__(self, buffer, match, line):
if self.start:
# find where this version should exist
i = len(buffer) - 1
v = find_version(buffer[i])
while i >= self.start and v.on_or_after(index_version):
i -= 1
v = find_version(buffer[i])
i += 1 # readjust since we skipped past by 1
# unfortunately python doesn't have a range remove from list...
# here we want to remove any previous references to the version we are adding
while i < len(buffer) and index_version.on_or_after(find_version(buffer[i])):
buffer.pop(i)
if i == len(buffer) and not buffer[-1].strip().endswith(","):
# add comma
buffer[-1] = buffer[-1].rstrip() + ",\n"
last = buffer[-1]
spaces = ' ' * (len(last) - len(last.lstrip()))
for (j, t) in enumerate(types):
newline = spaces + ('"%s-%s"' % (index_version, t))
if j < len(types) - 1 or i < len(buffer):
newline += ','
buffer.insert(i, newline + '\n')
i += 1
buffer.append(line)
return True
if 'Names = {' in line:
self.start = len(buffer) # location of first index name
buffer.append(line)
return False
changed = scriptutil.update_file(filename, matcher, Edit())
print('done' if changed else 'uptodate')
def check_backcompat_tests():
print(' checking backcompat tests...', end='', flush=True)
olddir = os.getcwd()
os.chdir('lucene/backward-codecs')
scriptutil.run('ant test -Dtestcase=TestBackwardsCompatibility')
os.chdir(olddir)
print('ok')
def download_from_mirror(version, remotename, localname):
url = 'http://apache.cs.utah.edu/lucene/java/%s/%s' % (version, remotename)
try:
urllib.request.urlretrieve(url, localname)
return True
except urllib.error.URLError as e:
if e.code == 404:
return False
raise e
def download_from_archives(version, remotename, localname):
url = 'http://archive.apache.org/dist/lucene/java/%s/%s' % (version, remotename)
try:
urllib.request.urlretrieve(url, localname)
return True
except urllib.error.URLError as e:
if e.code == 404:
return False
raise e
def download_release(version, temp_dir, force):
print(' downloading %s source release...' % version, end='', flush=True)
source = os.path.join(temp_dir, 'lucene-%s' % version)
if os.path.exists(source):
if force:
shutil.rmtree(source)
else:
print('uptodate')
return source
filename = 'lucene-%s-src.tgz' % version
source_tgz = os.path.join(temp_dir, filename)
if not download_from_mirror(version, filename, source_tgz) and \
not download_from_archives(version, filename, source_tgz):
raise Exception('Could not find version %s in apache mirror or archives' % version)
olddir = os.getcwd()
os.chdir(temp_dir)
scriptutil.run('tar -xvzf %s' % source_tgz)
os.chdir(olddir)
print('done')
return source
def read_config():
parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter,
description='''\
Add backcompat index and test for new version. See:
http://wiki.apache.org/lucene-java/ReleaseTodo#Generate_Backcompat_Indexes
''')
parser.add_argument('--force', action='store_true', default=False,
help='Redownload the version and rebuild, even if it already exists')
parser.add_argument('--no-cleanup', dest='cleanup', action='store_false', default=True,
help='Do not cleanup the built indexes, so that they can be reused ' +
'for adding to another branch')
parser.add_argument('--temp-dir', metavar='DIR', default='/tmp/lucenebwc',
help='Temp directory to build backcompat indexes within')
parser.add_argument('version', type=scriptutil.Version.parse,
help='Version to add, of the form X.Y.Z')
c = parser.parse_args()
return c
def main():
c = read_config()
if not os.path.exists(c.temp_dir):
os.makedirs(c.temp_dir)
print('\nCreating backwards compatibility indexes')
source = download_release(c.version, c.temp_dir, c.force)
current_version = scriptutil.Version.parse(scriptutil.find_current_version())
create_and_add_index(source, 'cfs', c.version, current_version, c.temp_dir)
create_and_add_index(source, 'nocfs', c.version, current_version, c.temp_dir)
print('\nAdding backwards compatibility tests')
update_backcompat_tests(['cfs', 'nocfs'], c.version, current_version)
print('\nTesting changes')
check_backcompat_tests()
if c.cleanup:
print('\nCleaning up')
print(' deleting %s...' % c.temp_dir, end='', flush=True)
shutil.rmtree(c.temp_dir)
print('done')
print()
if __name__ == '__main__':
try:
main()
except KeyboardInterrupt:
print('\nRecieved Ctrl-C, exiting early')