airflow redirects 源码
airflow redirects 代码
文件路径：/docs/exts/redirects.py
# Licensed to the Apache Software Foundation (ASF) under one
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# 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.
"""Based on: https://github.com/sphinx-contrib/redirects"""
from __future__ import annotations
import os
from sphinx.builders import html as builders
from sphinx.util import logging
TEMPLATE = '<html><head><meta http-equiv="refresh" content="0; url={}"/></head></html>'
log = logging.getLogger(__name__)
def generate_redirects(app):
"""Generate redirects files."""
redirect_file_path = os.path.join(app.srcdir, app.config.redirects_file)
if not os.path.exists(redirect_file_path):
log.info("Could not found the redirect file: %s", redirect_file_path)
return
in_suffix = next(iter(app.config.source_suffix.keys()))
if not isinstance(app.builder, builders.StandaloneHTMLBuilder):
return
with open(redirect_file_path) as redirects:
for line in redirects.readlines():
# Skip empty line
if not line.strip():
continue
# Skip comments
if line.startswith("#"):
continue
from_path, _, to_path = line.rstrip().partition(" ")
log.debug("Redirecting '%s' to '%s'", from_path, to_path)
from_path = from_path.replace(in_suffix, '.html')
to_path = to_path.replace(in_suffix, ".html")
to_path_prefix = f"..{os.path.sep}" * (len(from_path.split(os.path.sep)) - 1)
to_path = to_path_prefix + to_path
log.debug("Resolved redirect '%s' to '%s'", from_path, to_path)
redirected_filename = os.path.join(app.builder.outdir, from_path)
redirected_directory = os.path.dirname(redirected_filename)
os.makedirs(redirected_directory, exist_ok=True)
with open(redirected_filename, "w") as f:
f.write(TEMPLATE.format(to_path))
def setup(app):
"""Setup plugin"""
app.add_config_value("redirects_file", "redirects", "env")
app.connect("builder-inited", generate_redirects)
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