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//===--- Path.cpp -------------------------------------------*- C++-*------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "support/Path.h"
#include "llvm/Support/Path.h"
namespace clang {
namespace clangd {
#ifdef CLANGD_PATH_CASE_INSENSITIVE
std::string maybeCaseFoldPath(PathRef Path) { return Path.lower(); }
bool pathEqual(PathRef A, PathRef B) { return A.equals_insensitive(B); }
#else // NOT CLANGD_PATH_CASE_INSENSITIVE
std::string maybeCaseFoldPath(PathRef Path) { return Path.str(); }
bool pathEqual(PathRef A, PathRef B) { return A == B; }
#endif // CLANGD_PATH_CASE_INSENSITIVE
PathRef absoluteParent(PathRef Path) {
assert(llvm::sys::path::is_absolute(Path));
#if defined(_WIN32)
// llvm::sys says "C:\" is absolute, and its parent is "C:" which is relative.
// This unhelpful behavior seems to have been inherited from boost.
if (llvm::sys::path::relative_path(Path).empty()) {
return PathRef();
}
#endif
PathRef Result = llvm::sys::path::parent_path(Path);
assert(Result.empty() || llvm::sys::path::is_absolute(Result));
return Result;
}
bool pathStartsWith(PathRef Ancestor, PathRef Path,
llvm::sys::path::Style Style) {
assert(llvm::sys::path::is_absolute(Ancestor) &&
llvm::sys::path::is_absolute(Path));
// If ancestor ends with a separator drop that, so that we can match /foo/ as
// a parent of /foo.
if (llvm::sys::path::is_separator(Ancestor.back(), Style))
Ancestor = Ancestor.drop_back();
// Ensure Path starts with Ancestor.
if (!pathEqual(Ancestor, Path.take_front(Ancestor.size())))
return false;
Path = Path.drop_front(Ancestor.size());
// Then make sure either two paths are equal or Path has a separator
// afterwards.
return Path.empty() || llvm::sys::path::is_separator(Path.front(), Style);
}
} // namespace clangd
} // namespace clang
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