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- /*
- * Copyright 2012-present Facebook, Inc.
- *
- * Licensed 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.
- */
- #pragma once
- #include <boost/filesystem.hpp>
- namespace folly {
- namespace fs {
- // Functions defined in this file are meant to extend the
- // boost::filesystem library; functions will be named according to boost's
- // naming conventions instead of ours. For convenience, import the
- // boost::filesystem namespace into folly::fs.
- using namespace ::boost::filesystem;
- /**
- * Check whether "path" starts with "prefix".
- * That is, if prefix has n path elements, then the first n elements of
- * path must be the same as prefix.
- *
- * There is a special case if prefix ends with a slash:
- * /foo/bar/ is not a prefix of /foo/bar, but both /foo/bar and /foo/bar/
- * are prefixes of /foo/bar/baz.
- */
- bool starts_with(const path& p, const path& prefix);
- /**
- * If "path" starts with "prefix", return "path" with "prefix" removed.
- * Otherwise, throw filesystem_error.
- */
- path remove_prefix(const path& p, const path& prefix);
- /**
- * Canonicalize the parent path, leaving the filename (last component)
- * unchanged. You may use this before creating a file instead of
- * boost::filesystem::canonical, which requires that the entire path exists.
- */
- path canonical_parent(const path& p, const path& basePath = current_path());
- /**
- * Get the path to the current executable.
- *
- * Note that this is not reliable and not recommended in general; it may not be
- * implemented on your platform (in which case it will throw), the executable
- * might have been moved or replaced while running, and applications comprising
- * of multiple executables should use some form of configuration system to
- * find the other executables rather than relying on relative paths from one
- * to another.
- *
- * So this should only be used for tests, logging, or other innocuous purposes.
- */
- path executable_path();
- } // namespace fs
- } // namespace folly
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