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Extend virtual file system with isLocal method

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Expose the `llvm::sys::fs::is_local` function through the VFS.

Differential revision: https://reviews.llvm.org/D54127

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346372 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jonas Devlieghere
2018-11-08 00:01:32 +00:00
parent 8e906179e3
commit 33443e8e94
3 changed files with 41 additions and 1 deletions
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25
lib/Support/VirtualFileSystem.cpp
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@@ -136,6 +136,10 @@ std::error_code FileSystem::getRealPath(const Twine &Path,
return errc::operation_not_permitted;
}
std::error_code FileSystem::isLocal(const Twine &Path, bool &Result) {
return errc::operation_not_permitted;
}
bool FileSystem::exists(const Twine &Path) {
auto Status = status(Path);
return Status && Status->exists();
@@ -233,6 +237,7 @@ public:
llvm::ErrorOr<std::string> getCurrentWorkingDirectory() const override;
std::error_code setCurrentWorkingDirectory(const Twine &Path) override;
std::error_code isLocal(const Twine &Path, bool &Result) override;
std::error_code getRealPath(const Twine &Path,
SmallVectorImpl<char> &Output) const override;
@@ -288,6 +293,10 @@ std::error_code RealFileSystem::setCurrentWorkingDirectory(const Twine &Path) {
return std::error_code();
}
std::error_code RealFileSystem::isLocal(const Twine &Path, bool &Result) {
return llvm::sys::fs::is_local(Path, Result);
}
std::error_code
RealFileSystem::getRealPath(const Twine &Path,
SmallVectorImpl<char> &Output) const {
@@ -377,6 +386,13 @@ OverlayFileSystem::setCurrentWorkingDirectory(const Twine &Path) {
return {};
}
std::error_code OverlayFileSystem::isLocal(const Twine &Path, bool &Result) {
for (auto &FS : FSList)
if (FS->exists(Path))
return FS->isLocal(Path, Result);
return errc::no_such_file_or_directory;
}
std::error_code
OverlayFileSystem::getRealPath(const Twine &Path,
SmallVectorImpl<char> &Output) const {
@@ -913,6 +929,11 @@ InMemoryFileSystem::getRealPath(const Twine &Path,
return {};
}
std::error_code InMemoryFileSystem::isLocal(const Twine &Path, bool &Result) {
Result = false;
return {};
}
} // namespace vfs
} // namespace llvm
@@ -1170,6 +1191,10 @@ public:
return ExternalFS->setCurrentWorkingDirectory(Path);
}
std::error_code isLocal(const Twine &Path, bool &Result) override {
return ExternalFS->isLocal(Path, Result);
}
directory_iterator dir_begin(const Twine &Dir, std::error_code &EC) override {
ErrorOr<Entry *> E = lookupPath(Dir);
if (!E) {