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#!/usr/bin/python3 # # # 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. # # """This is a pre-commit hook that checks whether the contents of PO files committed to the repository are encoded in UTF-8. """ import codecs import string import sys import subprocess from svn import core, fs, delta, repos # Set to the path of the 'msgfmt' executable to use msgfmt to check # the syntax of the po file USE_MSGFMT = None if USE_MSGFMT is not None: class MsgFmtChecker: def __init__(self): self.pipe = subprocess.Popen([USE_MSGFMT, "-c", "-o", "/dev/null", "-"], stdin=subprocess.PIPE, close_fds=sys.platform != "win32") self.io_error = 0 def write(self, data): if self.io_error: return try: self.pipe.stdin.write(data) except IOError: self.io_error = 1 def close(self): try: self.pipe.stdin.close() except IOError: self.io_error = 1 return self.pipe.wait() == 0 and not self.io_error else: class MsgFmtChecker: def write(self, data): pass def close(self): return 1 class ChangeReceiver(delta.Editor): def __init__(self, txn_root, base_root, pool): self.txn_root = txn_root self.base_root = base_root self.pool = pool def add_file(self, path, parent_baton, copyfrom_path, copyfrom_revision, file_pool): return [0, path] def open_file(self, path, parent_baton, base_revision, file_pool): return [0, path] def apply_textdelta(self, file_baton, base_checksum): file_baton[0] = 1 # no handler return None def close_file(self, file_baton, text_checksum): changed, path = file_baton if len(path) < 3 or path[-3:] != '.po' or not changed: # This is not a .po file, or it hasn't changed return try: # Read the file contents through a validating UTF-8 decoder subpool = core.svn_pool_create(self.pool) checker = MsgFmtChecker() try: stream = core.Stream(fs.file_contents(self.txn_root, path, subpool)) reader = codecs.getreader('UTF-8')(stream, 'strict') writer = codecs.getwriter('UTF-8')(checker, 'strict') while True: data = reader.read(core.SVN_STREAM_CHUNK_SIZE) if not data: break writer.write(data) if not checker.close(): sys.exit("PO format check failed for '" + path + "'") except UnicodeError: sys.exit("PO file is not in UTF-8: '" + path + "'") finally: core.svn_pool_destroy(subpool) def check_po(pool, repos_path, txn): def authz_cb(root, path, pool): return 1 fs_ptr = repos.fs(repos.open(repos_path, pool)) txn_ptr = fs.open_txn(fs_ptr, txn, pool) txn_root = fs.txn_root(txn_ptr, pool) base_root = fs.revision_root(fs_ptr, fs.txn_base_revision(txn_ptr), pool) editor = ChangeReceiver(txn_root, base_root, pool) e_ptr, e_baton = delta.make_editor(editor, pool) repos.dir_delta(base_root, '', '', txn_root, '', e_ptr, e_baton, authz_cb, 0, 1, 0, 0, pool) if __name__ == '__main__': assert len(sys.argv) == 3 core.run_app(check_po, sys.argv[1], sys.argv[2])