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https://github.com/RPCS3/llvm-mirror.git
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db17649a16
Summary:
Previously only one RealFileSystem instance was available, and its working
directory is shared with the process. This doesn't work well for multithreaded
programs that want to work with relative paths - the vfs::FileSystem is assumed
to provide the working directory, but a thread cannot control this exclusively.
The new vfs::createPhysicalFileSystem() factory copies the process's working
directory initially, and then allows it to be independently modified.
This implementation records the working directory path, and glues it to relative
paths to provide the correct absolute path to the sys::fs:: functions.
This will give different results in unusual situations (e.g. the CWD is moved).
The main alternative is the use of openat(), fstatat(), etc to ask the OS to
resolve paths relative to a directory handle which can be kept open. This is
more robust. There are two reasons not to do this initially:
1. these functions are not available on all supported Unixes, and are somewhere
between difficult and unavailable on Windows. So we need a path-based
fallback anyway.
2. this would mean also adding support at the llvm::sys::fs level, which is a
larger project. My clearest idea is an OS-specific `BaseDirectory` object
that can be optionally passed to functions there. Eventually this could be
backed by either paths or a fd where openat() is supported.
This is a large project, and demonstrating here that a path-based fallback
works is a useful prerequisite.
There is some subtlety to the path-manipulation mechanism:
- when setting the working directory, both Specified=makeAbsolute(path) and
Resolved=realpath(path) are recorded. These may differ in the presence of
symlinks.
- getCurrentWorkingDirectory() and makeAbsolute() use Specified - this is
similar to the behavior of $PWD and sys::path::current_path
- IO operations like openFileForRead use Resolved. This is similar to the
behavior of an openat() based implementation, that doesn't see changes
in symlinks.
There may still be combinations of operations and FS states that yield unhelpful
behavior. This is hard to avoid with symlinks and FS abstractions :(
The caching behavior of the current working directory is removed in this patch.
getRealFileSystem() is now specified to link to the process CWD, so the caching
is incorrect.
The user who needed this so far is clangd, which will immediately switch to
createPhysicalFileSystem().
Reviewers: ilya-biryukov, bkramer, labath
Subscribers: ioeric, kadircet, kristina, llvm-commits
Differential Revision: https://reviews.llvm.org/D56545
llvm-svn: 351050
1941 lines
67 KiB
C++
1941 lines
67 KiB
C++
//===- unittests/Support/VirtualFileSystem.cpp -------------- VFS tests ---===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/VirtualFileSystem.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/Support/Errc.h"
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#include "llvm/Support/Host.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/SourceMgr.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include <map>
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#include <string>
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using namespace llvm;
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using llvm::sys::fs::UniqueID;
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using testing::ElementsAre;
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using testing::Pair;
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using testing::UnorderedElementsAre;
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namespace {
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struct DummyFile : public vfs::File {
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vfs::Status S;
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explicit DummyFile(vfs::Status S) : S(S) {}
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llvm::ErrorOr<vfs::Status> status() override { return S; }
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llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>
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getBuffer(const Twine &Name, int64_t FileSize, bool RequiresNullTerminator,
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bool IsVolatile) override {
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llvm_unreachable("unimplemented");
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}
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std::error_code close() override { return std::error_code(); }
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};
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class DummyFileSystem : public vfs::FileSystem {
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int FSID; // used to produce UniqueIDs
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int FileID; // used to produce UniqueIDs
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std::map<std::string, vfs::Status> FilesAndDirs;
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static int getNextFSID() {
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static int Count = 0;
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return Count++;
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}
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public:
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DummyFileSystem() : FSID(getNextFSID()), FileID(0) {}
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ErrorOr<vfs::Status> status(const Twine &Path) override {
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std::map<std::string, vfs::Status>::iterator I =
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FilesAndDirs.find(Path.str());
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if (I == FilesAndDirs.end())
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return make_error_code(llvm::errc::no_such_file_or_directory);
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return I->second;
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}
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ErrorOr<std::unique_ptr<vfs::File>>
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openFileForRead(const Twine &Path) override {
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auto S = status(Path);
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if (S)
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return std::unique_ptr<vfs::File>(new DummyFile{*S});
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return S.getError();
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}
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llvm::ErrorOr<std::string> getCurrentWorkingDirectory() const override {
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return std::string();
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}
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std::error_code setCurrentWorkingDirectory(const Twine &Path) override {
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return std::error_code();
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}
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// Map any symlink to "/symlink".
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std::error_code getRealPath(const Twine &Path,
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SmallVectorImpl<char> &Output) const override {
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auto I = FilesAndDirs.find(Path.str());
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if (I == FilesAndDirs.end())
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return make_error_code(llvm::errc::no_such_file_or_directory);
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if (I->second.isSymlink()) {
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Output.clear();
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Twine("/symlink").toVector(Output);
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return std::error_code();
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}
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Output.clear();
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Path.toVector(Output);
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return std::error_code();
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}
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struct DirIterImpl : public llvm::vfs::detail::DirIterImpl {
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std::map<std::string, vfs::Status> &FilesAndDirs;
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std::map<std::string, vfs::Status>::iterator I;
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std::string Path;
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bool isInPath(StringRef S) {
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if (Path.size() < S.size() && S.find(Path) == 0) {
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auto LastSep = S.find_last_of('/');
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if (LastSep == Path.size() || LastSep == Path.size() - 1)
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return true;
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}
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return false;
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}
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DirIterImpl(std::map<std::string, vfs::Status> &FilesAndDirs,
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const Twine &_Path)
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: FilesAndDirs(FilesAndDirs), I(FilesAndDirs.begin()),
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Path(_Path.str()) {
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for (; I != FilesAndDirs.end(); ++I) {
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if (isInPath(I->first)) {
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CurrentEntry =
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vfs::directory_entry(I->second.getName(), I->second.getType());
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break;
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}
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}
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}
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std::error_code increment() override {
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++I;
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for (; I != FilesAndDirs.end(); ++I) {
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if (isInPath(I->first)) {
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CurrentEntry =
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vfs::directory_entry(I->second.getName(), I->second.getType());
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break;
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}
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}
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if (I == FilesAndDirs.end())
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CurrentEntry = vfs::directory_entry();
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return std::error_code();
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}
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};
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vfs::directory_iterator dir_begin(const Twine &Dir,
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std::error_code &EC) override {
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return vfs::directory_iterator(
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std::make_shared<DirIterImpl>(FilesAndDirs, Dir));
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}
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void addEntry(StringRef Path, const vfs::Status &Status) {
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FilesAndDirs[Path] = Status;
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}
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void addRegularFile(StringRef Path, sys::fs::perms Perms = sys::fs::all_all) {
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vfs::Status S(Path, UniqueID(FSID, FileID++),
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std::chrono::system_clock::now(), 0, 0, 1024,
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sys::fs::file_type::regular_file, Perms);
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addEntry(Path, S);
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}
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void addDirectory(StringRef Path, sys::fs::perms Perms = sys::fs::all_all) {
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vfs::Status S(Path, UniqueID(FSID, FileID++),
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std::chrono::system_clock::now(), 0, 0, 0,
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sys::fs::file_type::directory_file, Perms);
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addEntry(Path, S);
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}
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void addSymlink(StringRef Path) {
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vfs::Status S(Path, UniqueID(FSID, FileID++),
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std::chrono::system_clock::now(), 0, 0, 0,
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sys::fs::file_type::symlink_file, sys::fs::all_all);
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addEntry(Path, S);
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}
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};
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/// Replace back-slashes by front-slashes.
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std::string getPosixPath(std::string S) {
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SmallString<128> Result;
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llvm::sys::path::native(S, Result, llvm::sys::path::Style::posix);
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return Result.str();
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}
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} // end anonymous namespace
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TEST(VirtualFileSystemTest, StatusQueries) {
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IntrusiveRefCntPtr<DummyFileSystem> D(new DummyFileSystem());
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ErrorOr<vfs::Status> Status((std::error_code()));
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D->addRegularFile("/foo");
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Status = D->status("/foo");
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ASSERT_FALSE(Status.getError());
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EXPECT_TRUE(Status->isStatusKnown());
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EXPECT_FALSE(Status->isDirectory());
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EXPECT_TRUE(Status->isRegularFile());
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EXPECT_FALSE(Status->isSymlink());
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EXPECT_FALSE(Status->isOther());
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EXPECT_TRUE(Status->exists());
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D->addDirectory("/bar");
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Status = D->status("/bar");
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ASSERT_FALSE(Status.getError());
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EXPECT_TRUE(Status->isStatusKnown());
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EXPECT_TRUE(Status->isDirectory());
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EXPECT_FALSE(Status->isRegularFile());
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EXPECT_FALSE(Status->isSymlink());
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EXPECT_FALSE(Status->isOther());
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EXPECT_TRUE(Status->exists());
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D->addSymlink("/baz");
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Status = D->status("/baz");
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ASSERT_FALSE(Status.getError());
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EXPECT_TRUE(Status->isStatusKnown());
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EXPECT_FALSE(Status->isDirectory());
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EXPECT_FALSE(Status->isRegularFile());
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EXPECT_TRUE(Status->isSymlink());
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EXPECT_FALSE(Status->isOther());
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EXPECT_TRUE(Status->exists());
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EXPECT_TRUE(Status->equivalent(*Status));
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ErrorOr<vfs::Status> Status2 = D->status("/foo");
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ASSERT_FALSE(Status2.getError());
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EXPECT_FALSE(Status->equivalent(*Status2));
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}
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TEST(VirtualFileSystemTest, BaseOnlyOverlay) {
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IntrusiveRefCntPtr<DummyFileSystem> D(new DummyFileSystem());
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ErrorOr<vfs::Status> Status((std::error_code()));
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EXPECT_FALSE(Status = D->status("/foo"));
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IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(new vfs::OverlayFileSystem(D));
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EXPECT_FALSE(Status = O->status("/foo"));
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D->addRegularFile("/foo");
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Status = D->status("/foo");
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EXPECT_FALSE(Status.getError());
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ErrorOr<vfs::Status> Status2((std::error_code()));
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Status2 = O->status("/foo");
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EXPECT_FALSE(Status2.getError());
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EXPECT_TRUE(Status->equivalent(*Status2));
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}
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TEST(VirtualFileSystemTest, GetRealPathInOverlay) {
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IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
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Lower->addRegularFile("/foo");
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Lower->addSymlink("/lower_link");
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IntrusiveRefCntPtr<DummyFileSystem> Upper(new DummyFileSystem());
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IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
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new vfs::OverlayFileSystem(Lower));
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O->pushOverlay(Upper);
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// Regular file.
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SmallString<16> RealPath;
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EXPECT_FALSE(O->getRealPath("/foo", RealPath));
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EXPECT_EQ(RealPath.str(), "/foo");
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// Expect no error getting real path for symlink in lower overlay.
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EXPECT_FALSE(O->getRealPath("/lower_link", RealPath));
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EXPECT_EQ(RealPath.str(), "/symlink");
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// Try a non-existing link.
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EXPECT_EQ(O->getRealPath("/upper_link", RealPath),
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errc::no_such_file_or_directory);
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// Add a new symlink in upper.
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Upper->addSymlink("/upper_link");
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EXPECT_FALSE(O->getRealPath("/upper_link", RealPath));
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EXPECT_EQ(RealPath.str(), "/symlink");
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}
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TEST(VirtualFileSystemTest, OverlayFiles) {
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IntrusiveRefCntPtr<DummyFileSystem> Base(new DummyFileSystem());
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IntrusiveRefCntPtr<DummyFileSystem> Middle(new DummyFileSystem());
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IntrusiveRefCntPtr<DummyFileSystem> Top(new DummyFileSystem());
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IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
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new vfs::OverlayFileSystem(Base));
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O->pushOverlay(Middle);
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O->pushOverlay(Top);
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ErrorOr<vfs::Status> Status1((std::error_code())),
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Status2((std::error_code())), Status3((std::error_code())),
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StatusB((std::error_code())), StatusM((std::error_code())),
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StatusT((std::error_code()));
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Base->addRegularFile("/foo");
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StatusB = Base->status("/foo");
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ASSERT_FALSE(StatusB.getError());
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Status1 = O->status("/foo");
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ASSERT_FALSE(Status1.getError());
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Middle->addRegularFile("/foo");
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StatusM = Middle->status("/foo");
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ASSERT_FALSE(StatusM.getError());
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Status2 = O->status("/foo");
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ASSERT_FALSE(Status2.getError());
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Top->addRegularFile("/foo");
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StatusT = Top->status("/foo");
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ASSERT_FALSE(StatusT.getError());
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Status3 = O->status("/foo");
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ASSERT_FALSE(Status3.getError());
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EXPECT_TRUE(Status1->equivalent(*StatusB));
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EXPECT_TRUE(Status2->equivalent(*StatusM));
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EXPECT_TRUE(Status3->equivalent(*StatusT));
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EXPECT_FALSE(Status1->equivalent(*Status2));
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EXPECT_FALSE(Status2->equivalent(*Status3));
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EXPECT_FALSE(Status1->equivalent(*Status3));
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}
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TEST(VirtualFileSystemTest, OverlayDirsNonMerged) {
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IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
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IntrusiveRefCntPtr<DummyFileSystem> Upper(new DummyFileSystem());
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IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
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new vfs::OverlayFileSystem(Lower));
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O->pushOverlay(Upper);
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Lower->addDirectory("/lower-only");
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Upper->addDirectory("/upper-only");
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// non-merged paths should be the same
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ErrorOr<vfs::Status> Status1 = Lower->status("/lower-only");
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ASSERT_FALSE(Status1.getError());
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ErrorOr<vfs::Status> Status2 = O->status("/lower-only");
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ASSERT_FALSE(Status2.getError());
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EXPECT_TRUE(Status1->equivalent(*Status2));
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Status1 = Upper->status("/upper-only");
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ASSERT_FALSE(Status1.getError());
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Status2 = O->status("/upper-only");
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ASSERT_FALSE(Status2.getError());
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EXPECT_TRUE(Status1->equivalent(*Status2));
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}
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TEST(VirtualFileSystemTest, MergedDirPermissions) {
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// merged directories get the permissions of the upper dir
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IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
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IntrusiveRefCntPtr<DummyFileSystem> Upper(new DummyFileSystem());
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IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
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new vfs::OverlayFileSystem(Lower));
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O->pushOverlay(Upper);
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ErrorOr<vfs::Status> Status((std::error_code()));
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Lower->addDirectory("/both", sys::fs::owner_read);
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Upper->addDirectory("/both", sys::fs::owner_all | sys::fs::group_read);
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Status = O->status("/both");
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ASSERT_FALSE(Status.getError());
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EXPECT_EQ(0740, Status->getPermissions());
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// permissions (as usual) are not recursively applied
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Lower->addRegularFile("/both/foo", sys::fs::owner_read);
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Upper->addRegularFile("/both/bar", sys::fs::owner_write);
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Status = O->status("/both/foo");
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ASSERT_FALSE(Status.getError());
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EXPECT_EQ(0400, Status->getPermissions());
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Status = O->status("/both/bar");
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ASSERT_FALSE(Status.getError());
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EXPECT_EQ(0200, Status->getPermissions());
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}
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namespace {
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struct ScopedDir {
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SmallString<128> Path;
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ScopedDir(const Twine &Name, bool Unique = false) {
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std::error_code EC;
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if (Unique) {
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EC = llvm::sys::fs::createUniqueDirectory(Name, Path);
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} else {
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Path = Name.str();
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EC = llvm::sys::fs::create_directory(Twine(Path));
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}
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if (EC)
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Path = "";
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EXPECT_FALSE(EC);
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}
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~ScopedDir() {
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if (Path != "") {
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EXPECT_FALSE(llvm::sys::fs::remove(Path.str()));
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}
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}
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operator StringRef() { return Path.str(); }
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};
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struct ScopedLink {
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SmallString<128> Path;
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ScopedLink(const Twine &To, const Twine &From) {
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Path = From.str();
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std::error_code EC = sys::fs::create_link(To, From);
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if (EC)
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Path = "";
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EXPECT_FALSE(EC);
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}
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~ScopedLink() {
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if (Path != "") {
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EXPECT_FALSE(llvm::sys::fs::remove(Path.str()));
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}
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}
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operator StringRef() { return Path.str(); }
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};
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struct ScopedFile {
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SmallString<128> Path;
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ScopedFile(const Twine &Path, StringRef Contents) {
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Path.toVector(this->Path);
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std::error_code EC;
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raw_fd_ostream OS(this->Path, EC);
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EXPECT_FALSE(EC);
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OS << Contents;
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OS.flush();
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EXPECT_FALSE(OS.error());
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if (EC || OS.error())
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this->Path = "";
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}
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~ScopedFile() {
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if (Path != "")
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EXPECT_FALSE(llvm::sys::fs::remove(Path.str()));
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}
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};
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} // end anonymous namespace
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TEST(VirtualFileSystemTest, BasicRealFSIteration) {
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ScopedDir TestDirectory("virtual-file-system-test", /*Unique*/ true);
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IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getRealFileSystem();
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std::error_code EC;
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vfs::directory_iterator I = FS->dir_begin(Twine(TestDirectory), EC);
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ASSERT_FALSE(EC);
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EXPECT_EQ(vfs::directory_iterator(), I); // empty directory is empty
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ScopedDir _a(TestDirectory + "/a");
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ScopedDir _ab(TestDirectory + "/a/b");
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ScopedDir _c(TestDirectory + "/c");
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ScopedDir _cd(TestDirectory + "/c/d");
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I = FS->dir_begin(Twine(TestDirectory), EC);
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ASSERT_FALSE(EC);
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ASSERT_NE(vfs::directory_iterator(), I);
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// Check either a or c, since we can't rely on the iteration order.
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EXPECT_TRUE(I->path().endswith("a") || I->path().endswith("c"));
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I.increment(EC);
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ASSERT_FALSE(EC);
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ASSERT_NE(vfs::directory_iterator(), I);
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EXPECT_TRUE(I->path().endswith("a") || I->path().endswith("c"));
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I.increment(EC);
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EXPECT_EQ(vfs::directory_iterator(), I);
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}
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TEST(VirtualFileSystemTest, MultipleWorkingDirs) {
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// Our root contains a/aa, b/bb, c, where c is a link to a/.
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// Run tests both in root/b/ and root/c/ (to test "normal" and symlink dirs).
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// Interleave operations to show the working directories are independent.
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ScopedDir Root("r", true), ADir(Root.Path + "/a"), BDir(Root.Path + "/b");
|
|
ScopedLink C(ADir.Path, Root.Path + "/c");
|
|
ScopedFile AA(ADir.Path + "/aa", "aaaa"), BB(BDir.Path + "/bb", "bbbb");
|
|
std::unique_ptr<vfs::FileSystem> BFS = vfs::createPhysicalFileSystem(),
|
|
CFS = vfs::createPhysicalFileSystem();
|
|
|
|
ASSERT_FALSE(BFS->setCurrentWorkingDirectory(BDir.Path));
|
|
ASSERT_FALSE(CFS->setCurrentWorkingDirectory(C.Path));
|
|
EXPECT_EQ(BDir.Path, *BFS->getCurrentWorkingDirectory());
|
|
EXPECT_EQ(C.Path, *CFS->getCurrentWorkingDirectory());
|
|
|
|
// openFileForRead(), indirectly.
|
|
auto BBuf = BFS->getBufferForFile("bb");
|
|
ASSERT_TRUE(BBuf);
|
|
EXPECT_EQ("bbbb", (*BBuf)->getBuffer());
|
|
|
|
auto ABuf = CFS->getBufferForFile("aa");
|
|
ASSERT_TRUE(ABuf);
|
|
EXPECT_EQ("aaaa", (*ABuf)->getBuffer());
|
|
|
|
// status()
|
|
auto BStat = BFS->status("bb");
|
|
ASSERT_TRUE(BStat);
|
|
EXPECT_EQ("bb", BStat->getName());
|
|
|
|
auto AStat = CFS->status("aa");
|
|
ASSERT_TRUE(AStat);
|
|
EXPECT_EQ("aa", AStat->getName()); // unresolved name
|
|
|
|
// getRealPath()
|
|
SmallString<128> BPath;
|
|
ASSERT_FALSE(BFS->getRealPath("bb", BPath));
|
|
EXPECT_EQ(BB.Path, BPath);
|
|
|
|
SmallString<128> APath;
|
|
ASSERT_FALSE(CFS->getRealPath("aa", APath));
|
|
EXPECT_EQ(AA.Path, APath); // Reports resolved name.
|
|
|
|
// dir_begin
|
|
std::error_code EC;
|
|
auto BIt = BFS->dir_begin(".", EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_NE(BIt, vfs::directory_iterator());
|
|
EXPECT_EQ((BDir.Path + "/./bb").str(), BIt->path());
|
|
BIt.increment(EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_EQ(BIt, vfs::directory_iterator());
|
|
|
|
auto CIt = CFS->dir_begin(".", EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_NE(CIt, vfs::directory_iterator());
|
|
EXPECT_EQ((ADir.Path + "/./aa").str(), CIt->path()); // Partly resolved name!
|
|
CIt.increment(EC); // Because likely to read through this path.
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_EQ(CIt, vfs::directory_iterator());
|
|
}
|
|
|
|
#ifdef LLVM_ON_UNIX
|
|
TEST(VirtualFileSystemTest, BrokenSymlinkRealFSIteration) {
|
|
ScopedDir TestDirectory("virtual-file-system-test", /*Unique*/ true);
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getRealFileSystem();
|
|
|
|
ScopedLink _a("no_such_file", TestDirectory + "/a");
|
|
ScopedDir _b(TestDirectory + "/b");
|
|
ScopedLink _c("no_such_file", TestDirectory + "/c");
|
|
|
|
// Should get no iteration error, but a stat error for the broken symlinks.
|
|
std::map<std::string, std::error_code> StatResults;
|
|
std::error_code EC;
|
|
for (vfs::directory_iterator I = FS->dir_begin(Twine(TestDirectory), EC), E;
|
|
I != E; I.increment(EC)) {
|
|
EXPECT_FALSE(EC);
|
|
StatResults[sys::path::filename(I->path())] =
|
|
FS->status(I->path()).getError();
|
|
}
|
|
EXPECT_THAT(
|
|
StatResults,
|
|
ElementsAre(
|
|
Pair("a", std::make_error_code(std::errc::no_such_file_or_directory)),
|
|
Pair("b", std::error_code()),
|
|
Pair("c",
|
|
std::make_error_code(std::errc::no_such_file_or_directory))));
|
|
}
|
|
#endif
|
|
|
|
TEST(VirtualFileSystemTest, BasicRealFSRecursiveIteration) {
|
|
ScopedDir TestDirectory("virtual-file-system-test", /*Unique*/ true);
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getRealFileSystem();
|
|
|
|
std::error_code EC;
|
|
auto I = vfs::recursive_directory_iterator(*FS, Twine(TestDirectory), EC);
|
|
ASSERT_FALSE(EC);
|
|
EXPECT_EQ(vfs::recursive_directory_iterator(), I); // empty directory is empty
|
|
|
|
ScopedDir _a(TestDirectory + "/a");
|
|
ScopedDir _ab(TestDirectory + "/a/b");
|
|
ScopedDir _c(TestDirectory + "/c");
|
|
ScopedDir _cd(TestDirectory + "/c/d");
|
|
|
|
I = vfs::recursive_directory_iterator(*FS, Twine(TestDirectory), EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_NE(vfs::recursive_directory_iterator(), I);
|
|
|
|
std::vector<std::string> Contents;
|
|
for (auto E = vfs::recursive_directory_iterator(); !EC && I != E;
|
|
I.increment(EC)) {
|
|
Contents.push_back(I->path());
|
|
}
|
|
|
|
// Check contents, which may be in any order
|
|
EXPECT_EQ(4U, Contents.size());
|
|
int Counts[4] = {0, 0, 0, 0};
|
|
for (const std::string &Name : Contents) {
|
|
ASSERT_FALSE(Name.empty());
|
|
int Index = Name[Name.size() - 1] - 'a';
|
|
ASSERT_TRUE(Index >= 0 && Index < 4);
|
|
Counts[Index]++;
|
|
}
|
|
EXPECT_EQ(1, Counts[0]); // a
|
|
EXPECT_EQ(1, Counts[1]); // b
|
|
EXPECT_EQ(1, Counts[2]); // c
|
|
EXPECT_EQ(1, Counts[3]); // d
|
|
}
|
|
|
|
TEST(VirtualFileSystemTest, BasicRealFSRecursiveIterationNoPush) {
|
|
ScopedDir TestDirectory("virtual-file-system-test", /*Unique*/ true);
|
|
|
|
ScopedDir _a(TestDirectory + "/a");
|
|
ScopedDir _ab(TestDirectory + "/a/b");
|
|
ScopedDir _c(TestDirectory + "/c");
|
|
ScopedDir _cd(TestDirectory + "/c/d");
|
|
ScopedDir _e(TestDirectory + "/e");
|
|
ScopedDir _ef(TestDirectory + "/e/f");
|
|
ScopedDir _g(TestDirectory + "/g");
|
|
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getRealFileSystem();
|
|
|
|
// Test that calling no_push on entries without subdirectories has no effect.
|
|
{
|
|
std::error_code EC;
|
|
auto I = vfs::recursive_directory_iterator(*FS, Twine(TestDirectory), EC);
|
|
ASSERT_FALSE(EC);
|
|
|
|
std::vector<std::string> Contents;
|
|
for (auto E = vfs::recursive_directory_iterator(); !EC && I != E;
|
|
I.increment(EC)) {
|
|
Contents.push_back(I->path());
|
|
char last = I->path().back();
|
|
switch (last) {
|
|
case 'b':
|
|
case 'd':
|
|
case 'f':
|
|
case 'g':
|
|
I.no_push();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
EXPECT_EQ(7U, Contents.size());
|
|
}
|
|
|
|
// Test that calling no_push skips subdirectories.
|
|
{
|
|
std::error_code EC;
|
|
auto I = vfs::recursive_directory_iterator(*FS, Twine(TestDirectory), EC);
|
|
ASSERT_FALSE(EC);
|
|
|
|
std::vector<std::string> Contents;
|
|
for (auto E = vfs::recursive_directory_iterator(); !EC && I != E;
|
|
I.increment(EC)) {
|
|
Contents.push_back(I->path());
|
|
char last = I->path().back();
|
|
switch (last) {
|
|
case 'a':
|
|
case 'c':
|
|
case 'e':
|
|
I.no_push();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Check contents, which may be in any order
|
|
EXPECT_EQ(4U, Contents.size());
|
|
int Counts[7] = {0, 0, 0, 0, 0, 0, 0};
|
|
for (const std::string &Name : Contents) {
|
|
ASSERT_FALSE(Name.empty());
|
|
int Index = Name[Name.size() - 1] - 'a';
|
|
ASSERT_TRUE(Index >= 0 && Index < 7);
|
|
Counts[Index]++;
|
|
}
|
|
EXPECT_EQ(1, Counts[0]); // a
|
|
EXPECT_EQ(0, Counts[1]); // b
|
|
EXPECT_EQ(1, Counts[2]); // c
|
|
EXPECT_EQ(0, Counts[3]); // d
|
|
EXPECT_EQ(1, Counts[4]); // e
|
|
EXPECT_EQ(0, Counts[5]); // f
|
|
EXPECT_EQ(1, Counts[6]); // g
|
|
}
|
|
}
|
|
|
|
#ifdef LLVM_ON_UNIX
|
|
TEST(VirtualFileSystemTest, BrokenSymlinkRealFSRecursiveIteration) {
|
|
ScopedDir TestDirectory("virtual-file-system-test", /*Unique*/ true);
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getRealFileSystem();
|
|
|
|
ScopedLink _a("no_such_file", TestDirectory + "/a");
|
|
ScopedDir _b(TestDirectory + "/b");
|
|
ScopedLink _ba("no_such_file", TestDirectory + "/b/a");
|
|
ScopedDir _bb(TestDirectory + "/b/b");
|
|
ScopedLink _bc("no_such_file", TestDirectory + "/b/c");
|
|
ScopedLink _c("no_such_file", TestDirectory + "/c");
|
|
ScopedDir _d(TestDirectory + "/d");
|
|
ScopedDir _dd(TestDirectory + "/d/d");
|
|
ScopedDir _ddd(TestDirectory + "/d/d/d");
|
|
ScopedLink _e("no_such_file", TestDirectory + "/e");
|
|
|
|
std::vector<std::string> VisitedBrokenSymlinks;
|
|
std::vector<std::string> VisitedNonBrokenSymlinks;
|
|
std::error_code EC;
|
|
for (vfs::recursive_directory_iterator I(*FS, Twine(TestDirectory), EC), E;
|
|
I != E; I.increment(EC)) {
|
|
EXPECT_FALSE(EC);
|
|
(FS->status(I->path()) ? VisitedNonBrokenSymlinks : VisitedBrokenSymlinks)
|
|
.push_back(I->path());
|
|
}
|
|
|
|
// Check visited file names.
|
|
EXPECT_THAT(VisitedBrokenSymlinks,
|
|
UnorderedElementsAre(StringRef(_a), StringRef(_ba),
|
|
StringRef(_bc), StringRef(_c),
|
|
StringRef(_e)));
|
|
EXPECT_THAT(VisitedNonBrokenSymlinks,
|
|
UnorderedElementsAre(StringRef(_b), StringRef(_bb), StringRef(_d),
|
|
StringRef(_dd), StringRef(_ddd)));
|
|
}
|
|
#endif
|
|
|
|
template <typename DirIter>
|
|
static void checkContents(DirIter I, ArrayRef<StringRef> ExpectedOut) {
|
|
std::error_code EC;
|
|
SmallVector<StringRef, 4> Expected(ExpectedOut.begin(), ExpectedOut.end());
|
|
SmallVector<std::string, 4> InputToCheck;
|
|
|
|
// Do not rely on iteration order to check for contents, sort both
|
|
// content vectors before comparison.
|
|
for (DirIter E; !EC && I != E; I.increment(EC))
|
|
InputToCheck.push_back(I->path());
|
|
|
|
llvm::sort(InputToCheck);
|
|
llvm::sort(Expected);
|
|
EXPECT_EQ(InputToCheck.size(), Expected.size());
|
|
|
|
unsigned LastElt = std::min(InputToCheck.size(), Expected.size());
|
|
for (unsigned Idx = 0; Idx != LastElt; ++Idx)
|
|
EXPECT_EQ(StringRef(InputToCheck[Idx]), Expected[Idx]);
|
|
}
|
|
|
|
TEST(VirtualFileSystemTest, OverlayIteration) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<DummyFileSystem> Upper(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(Upper);
|
|
|
|
std::error_code EC;
|
|
checkContents(O->dir_begin("/", EC), ArrayRef<StringRef>());
|
|
|
|
Lower->addRegularFile("/file1");
|
|
checkContents(O->dir_begin("/", EC), ArrayRef<StringRef>("/file1"));
|
|
|
|
Upper->addRegularFile("/file2");
|
|
checkContents(O->dir_begin("/", EC), {"/file2", "/file1"});
|
|
|
|
Lower->addDirectory("/dir1");
|
|
Lower->addRegularFile("/dir1/foo");
|
|
Upper->addDirectory("/dir2");
|
|
Upper->addRegularFile("/dir2/foo");
|
|
checkContents(O->dir_begin("/dir2", EC), ArrayRef<StringRef>("/dir2/foo"));
|
|
checkContents(O->dir_begin("/", EC), {"/dir2", "/file2", "/dir1", "/file1"});
|
|
}
|
|
|
|
TEST(VirtualFileSystemTest, OverlayRecursiveIteration) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<DummyFileSystem> Middle(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<DummyFileSystem> Upper(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(Middle);
|
|
O->pushOverlay(Upper);
|
|
|
|
std::error_code EC;
|
|
checkContents(vfs::recursive_directory_iterator(*O, "/", EC),
|
|
ArrayRef<StringRef>());
|
|
|
|
Lower->addRegularFile("/file1");
|
|
checkContents(vfs::recursive_directory_iterator(*O, "/", EC),
|
|
ArrayRef<StringRef>("/file1"));
|
|
|
|
Upper->addDirectory("/dir");
|
|
Upper->addRegularFile("/dir/file2");
|
|
checkContents(vfs::recursive_directory_iterator(*O, "/", EC),
|
|
{"/dir", "/dir/file2", "/file1"});
|
|
|
|
Lower->addDirectory("/dir1");
|
|
Lower->addRegularFile("/dir1/foo");
|
|
Lower->addDirectory("/dir1/a");
|
|
Lower->addRegularFile("/dir1/a/b");
|
|
Middle->addDirectory("/a");
|
|
Middle->addDirectory("/a/b");
|
|
Middle->addDirectory("/a/b/c");
|
|
Middle->addRegularFile("/a/b/c/d");
|
|
Middle->addRegularFile("/hiddenByUp");
|
|
Upper->addDirectory("/dir2");
|
|
Upper->addRegularFile("/dir2/foo");
|
|
Upper->addRegularFile("/hiddenByUp");
|
|
checkContents(vfs::recursive_directory_iterator(*O, "/dir2", EC),
|
|
ArrayRef<StringRef>("/dir2/foo"));
|
|
checkContents(vfs::recursive_directory_iterator(*O, "/", EC),
|
|
{"/dir", "/dir/file2", "/dir2", "/dir2/foo", "/hiddenByUp",
|
|
"/a", "/a/b", "/a/b/c", "/a/b/c/d", "/dir1", "/dir1/a",
|
|
"/dir1/a/b", "/dir1/foo", "/file1"});
|
|
}
|
|
|
|
TEST(VirtualFileSystemTest, ThreeLevelIteration) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<DummyFileSystem> Middle(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<DummyFileSystem> Upper(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(Middle);
|
|
O->pushOverlay(Upper);
|
|
|
|
std::error_code EC;
|
|
checkContents(O->dir_begin("/", EC), ArrayRef<StringRef>());
|
|
|
|
Middle->addRegularFile("/file2");
|
|
checkContents(O->dir_begin("/", EC), ArrayRef<StringRef>("/file2"));
|
|
|
|
Lower->addRegularFile("/file1");
|
|
Upper->addRegularFile("/file3");
|
|
checkContents(O->dir_begin("/", EC), {"/file3", "/file2", "/file1"});
|
|
}
|
|
|
|
TEST(VirtualFileSystemTest, HiddenInIteration) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<DummyFileSystem> Middle(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<DummyFileSystem> Upper(new DummyFileSystem());
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(Middle);
|
|
O->pushOverlay(Upper);
|
|
|
|
std::error_code EC;
|
|
Lower->addRegularFile("/onlyInLow");
|
|
Lower->addDirectory("/hiddenByMid");
|
|
Lower->addDirectory("/hiddenByUp");
|
|
Middle->addRegularFile("/onlyInMid");
|
|
Middle->addRegularFile("/hiddenByMid");
|
|
Middle->addDirectory("/hiddenByUp");
|
|
Upper->addRegularFile("/onlyInUp");
|
|
Upper->addRegularFile("/hiddenByUp");
|
|
checkContents(
|
|
O->dir_begin("/", EC),
|
|
{"/hiddenByUp", "/onlyInUp", "/hiddenByMid", "/onlyInMid", "/onlyInLow"});
|
|
|
|
// Make sure we get the top-most entry
|
|
{
|
|
std::error_code EC;
|
|
vfs::directory_iterator I = O->dir_begin("/", EC), E;
|
|
for (; !EC && I != E; I.increment(EC))
|
|
if (I->path() == "/hiddenByUp")
|
|
break;
|
|
ASSERT_NE(E, I);
|
|
EXPECT_EQ(sys::fs::file_type::regular_file, I->type());
|
|
}
|
|
{
|
|
std::error_code EC;
|
|
vfs::directory_iterator I = O->dir_begin("/", EC), E;
|
|
for (; !EC && I != E; I.increment(EC))
|
|
if (I->path() == "/hiddenByMid")
|
|
break;
|
|
ASSERT_NE(E, I);
|
|
EXPECT_EQ(sys::fs::file_type::regular_file, I->type());
|
|
}
|
|
}
|
|
|
|
TEST(ProxyFileSystemTest, Basic) {
|
|
IntrusiveRefCntPtr<vfs::InMemoryFileSystem> Base(
|
|
new vfs::InMemoryFileSystem());
|
|
vfs::ProxyFileSystem PFS(Base);
|
|
|
|
Base->addFile("/a", 0, MemoryBuffer::getMemBuffer("test"));
|
|
|
|
auto Stat = PFS.status("/a");
|
|
ASSERT_FALSE(Stat.getError());
|
|
|
|
auto File = PFS.openFileForRead("/a");
|
|
ASSERT_FALSE(File.getError());
|
|
EXPECT_EQ("test", (*(*File)->getBuffer("ignored"))->getBuffer());
|
|
|
|
std::error_code EC;
|
|
vfs::directory_iterator I = PFS.dir_begin("/", EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_EQ("/a", I->path());
|
|
I.increment(EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_EQ(vfs::directory_iterator(), I);
|
|
|
|
ASSERT_FALSE(PFS.setCurrentWorkingDirectory("/"));
|
|
|
|
auto PWD = PFS.getCurrentWorkingDirectory();
|
|
ASSERT_FALSE(PWD.getError());
|
|
ASSERT_EQ("/", *PWD);
|
|
|
|
SmallString<16> Path;
|
|
ASSERT_FALSE(PFS.getRealPath("a", Path));
|
|
ASSERT_EQ("/a", Path);
|
|
|
|
bool Local = true;
|
|
ASSERT_FALSE(PFS.isLocal("/a", Local));
|
|
ASSERT_EQ(false, Local);
|
|
}
|
|
|
|
class InMemoryFileSystemTest : public ::testing::Test {
|
|
protected:
|
|
llvm::vfs::InMemoryFileSystem FS;
|
|
llvm::vfs::InMemoryFileSystem NormalizedFS;
|
|
|
|
InMemoryFileSystemTest()
|
|
: FS(/*UseNormalizedPaths=*/false),
|
|
NormalizedFS(/*UseNormalizedPaths=*/true) {}
|
|
};
|
|
|
|
MATCHER_P2(IsHardLinkTo, FS, Target, "") {
|
|
StringRef From = arg;
|
|
StringRef To = Target;
|
|
auto OpenedFrom = FS->openFileForRead(From);
|
|
auto OpenedTo = FS->openFileForRead(To);
|
|
return !OpenedFrom.getError() && !OpenedTo.getError() &&
|
|
(*OpenedFrom)->status()->getUniqueID() ==
|
|
(*OpenedTo)->status()->getUniqueID();
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, IsEmpty) {
|
|
auto Stat = FS.status("/a");
|
|
ASSERT_EQ(Stat.getError(), errc::no_such_file_or_directory) << FS.toString();
|
|
Stat = FS.status("/");
|
|
ASSERT_EQ(Stat.getError(), errc::no_such_file_or_directory) << FS.toString();
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, WindowsPath) {
|
|
FS.addFile("c:/windows/system128/foo.cpp", 0, MemoryBuffer::getMemBuffer(""));
|
|
auto Stat = FS.status("c:");
|
|
#if !defined(_WIN32)
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << FS.toString();
|
|
#endif
|
|
Stat = FS.status("c:/windows/system128/foo.cpp");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << FS.toString();
|
|
FS.addFile("d:/windows/foo.cpp", 0, MemoryBuffer::getMemBuffer(""));
|
|
Stat = FS.status("d:/windows/foo.cpp");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << FS.toString();
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, OverlayFile) {
|
|
FS.addFile("/a", 0, MemoryBuffer::getMemBuffer("a"));
|
|
NormalizedFS.addFile("/a", 0, MemoryBuffer::getMemBuffer("a"));
|
|
auto Stat = FS.status("/");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << FS.toString();
|
|
Stat = FS.status("/.");
|
|
ASSERT_FALSE(Stat);
|
|
Stat = NormalizedFS.status("/.");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << FS.toString();
|
|
Stat = FS.status("/a");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_EQ("/a", Stat->getName());
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, OverlayFileNoOwn) {
|
|
auto Buf = MemoryBuffer::getMemBuffer("a");
|
|
FS.addFileNoOwn("/a", 0, Buf.get());
|
|
auto Stat = FS.status("/a");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_EQ("/a", Stat->getName());
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, OpenFileForRead) {
|
|
FS.addFile("/a", 0, MemoryBuffer::getMemBuffer("a"));
|
|
FS.addFile("././c", 0, MemoryBuffer::getMemBuffer("c"));
|
|
FS.addFile("./d/../d", 0, MemoryBuffer::getMemBuffer("d"));
|
|
NormalizedFS.addFile("/a", 0, MemoryBuffer::getMemBuffer("a"));
|
|
NormalizedFS.addFile("././c", 0, MemoryBuffer::getMemBuffer("c"));
|
|
NormalizedFS.addFile("./d/../d", 0, MemoryBuffer::getMemBuffer("d"));
|
|
auto File = FS.openFileForRead("/a");
|
|
ASSERT_EQ("a", (*(*File)->getBuffer("ignored"))->getBuffer());
|
|
File = FS.openFileForRead("/a"); // Open again.
|
|
ASSERT_EQ("a", (*(*File)->getBuffer("ignored"))->getBuffer());
|
|
File = NormalizedFS.openFileForRead("/././a"); // Open again.
|
|
ASSERT_EQ("a", (*(*File)->getBuffer("ignored"))->getBuffer());
|
|
File = FS.openFileForRead("/");
|
|
ASSERT_EQ(File.getError(), errc::invalid_argument) << FS.toString();
|
|
File = FS.openFileForRead("/b");
|
|
ASSERT_EQ(File.getError(), errc::no_such_file_or_directory) << FS.toString();
|
|
File = FS.openFileForRead("./c");
|
|
ASSERT_FALSE(File);
|
|
File = FS.openFileForRead("e/../d");
|
|
ASSERT_FALSE(File);
|
|
File = NormalizedFS.openFileForRead("./c");
|
|
ASSERT_EQ("c", (*(*File)->getBuffer("ignored"))->getBuffer());
|
|
File = NormalizedFS.openFileForRead("e/../d");
|
|
ASSERT_EQ("d", (*(*File)->getBuffer("ignored"))->getBuffer());
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, DuplicatedFile) {
|
|
ASSERT_TRUE(FS.addFile("/a", 0, MemoryBuffer::getMemBuffer("a")));
|
|
ASSERT_FALSE(FS.addFile("/a/b", 0, MemoryBuffer::getMemBuffer("a")));
|
|
ASSERT_TRUE(FS.addFile("/a", 0, MemoryBuffer::getMemBuffer("a")));
|
|
ASSERT_FALSE(FS.addFile("/a", 0, MemoryBuffer::getMemBuffer("b")));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, DirectoryIteration) {
|
|
FS.addFile("/a", 0, MemoryBuffer::getMemBuffer(""));
|
|
FS.addFile("/b/c", 0, MemoryBuffer::getMemBuffer(""));
|
|
|
|
std::error_code EC;
|
|
vfs::directory_iterator I = FS.dir_begin("/", EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_EQ("/a", I->path());
|
|
I.increment(EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_EQ("/b", I->path());
|
|
I.increment(EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_EQ(vfs::directory_iterator(), I);
|
|
|
|
I = FS.dir_begin("/b", EC);
|
|
ASSERT_FALSE(EC);
|
|
// When on Windows, we end up with "/b\\c" as the name. Convert to Posix
|
|
// path for the sake of the comparison.
|
|
ASSERT_EQ("/b/c", getPosixPath(I->path()));
|
|
I.increment(EC);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_EQ(vfs::directory_iterator(), I);
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, WorkingDirectory) {
|
|
FS.setCurrentWorkingDirectory("/b");
|
|
FS.addFile("c", 0, MemoryBuffer::getMemBuffer(""));
|
|
|
|
auto Stat = FS.status("/b/c");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_EQ("/b/c", Stat->getName());
|
|
ASSERT_EQ("/b", *FS.getCurrentWorkingDirectory());
|
|
|
|
Stat = FS.status("c");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
|
|
NormalizedFS.setCurrentWorkingDirectory("/b/c");
|
|
NormalizedFS.setCurrentWorkingDirectory(".");
|
|
ASSERT_EQ("/b/c",
|
|
getPosixPath(NormalizedFS.getCurrentWorkingDirectory().get()));
|
|
NormalizedFS.setCurrentWorkingDirectory("..");
|
|
ASSERT_EQ("/b",
|
|
getPosixPath(NormalizedFS.getCurrentWorkingDirectory().get()));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, IsLocal) {
|
|
FS.setCurrentWorkingDirectory("/b");
|
|
FS.addFile("c", 0, MemoryBuffer::getMemBuffer(""));
|
|
|
|
std::error_code EC;
|
|
bool IsLocal = true;
|
|
EC = FS.isLocal("c", IsLocal);
|
|
ASSERT_FALSE(EC);
|
|
ASSERT_FALSE(IsLocal);
|
|
}
|
|
|
|
#if !defined(_WIN32)
|
|
TEST_F(InMemoryFileSystemTest, GetRealPath) {
|
|
SmallString<16> Path;
|
|
EXPECT_EQ(FS.getRealPath("b", Path), errc::operation_not_permitted);
|
|
|
|
auto GetRealPath = [this](StringRef P) {
|
|
SmallString<16> Output;
|
|
auto EC = FS.getRealPath(P, Output);
|
|
EXPECT_FALSE(EC);
|
|
return Output.str().str();
|
|
};
|
|
|
|
FS.setCurrentWorkingDirectory("a");
|
|
EXPECT_EQ(GetRealPath("b"), "a/b");
|
|
EXPECT_EQ(GetRealPath("../b"), "b");
|
|
EXPECT_EQ(GetRealPath("b/./c"), "a/b/c");
|
|
|
|
FS.setCurrentWorkingDirectory("/a");
|
|
EXPECT_EQ(GetRealPath("b"), "/a/b");
|
|
EXPECT_EQ(GetRealPath("../b"), "/b");
|
|
EXPECT_EQ(GetRealPath("b/./c"), "/a/b/c");
|
|
}
|
|
#endif // _WIN32
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddFileWithUser) {
|
|
FS.addFile("/a/b/c", 0, MemoryBuffer::getMemBuffer("abc"), 0xFEEDFACE);
|
|
auto Stat = FS.status("/a");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isDirectory());
|
|
ASSERT_EQ(0xFEEDFACE, Stat->getUser());
|
|
Stat = FS.status("/a/b");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isDirectory());
|
|
ASSERT_EQ(0xFEEDFACE, Stat->getUser());
|
|
Stat = FS.status("/a/b/c");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isRegularFile());
|
|
ASSERT_EQ(sys::fs::perms::all_all, Stat->getPermissions());
|
|
ASSERT_EQ(0xFEEDFACE, Stat->getUser());
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddFileWithGroup) {
|
|
FS.addFile("/a/b/c", 0, MemoryBuffer::getMemBuffer("abc"), None, 0xDABBAD00);
|
|
auto Stat = FS.status("/a");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isDirectory());
|
|
ASSERT_EQ(0xDABBAD00, Stat->getGroup());
|
|
Stat = FS.status("/a/b");
|
|
ASSERT_TRUE(Stat->isDirectory());
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_EQ(0xDABBAD00, Stat->getGroup());
|
|
Stat = FS.status("/a/b/c");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isRegularFile());
|
|
ASSERT_EQ(sys::fs::perms::all_all, Stat->getPermissions());
|
|
ASSERT_EQ(0xDABBAD00, Stat->getGroup());
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddFileWithFileType) {
|
|
FS.addFile("/a/b/c", 0, MemoryBuffer::getMemBuffer("abc"), None, None,
|
|
sys::fs::file_type::socket_file);
|
|
auto Stat = FS.status("/a");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isDirectory());
|
|
Stat = FS.status("/a/b");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isDirectory());
|
|
Stat = FS.status("/a/b/c");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_EQ(sys::fs::file_type::socket_file, Stat->getType());
|
|
ASSERT_EQ(sys::fs::perms::all_all, Stat->getPermissions());
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddFileWithPerms) {
|
|
FS.addFile("/a/b/c", 0, MemoryBuffer::getMemBuffer("abc"), None, None, None,
|
|
sys::fs::perms::owner_read | sys::fs::perms::owner_write);
|
|
auto Stat = FS.status("/a");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isDirectory());
|
|
ASSERT_EQ(sys::fs::perms::owner_read | sys::fs::perms::owner_write |
|
|
sys::fs::perms::owner_exe,
|
|
Stat->getPermissions());
|
|
Stat = FS.status("/a/b");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isDirectory());
|
|
ASSERT_EQ(sys::fs::perms::owner_read | sys::fs::perms::owner_write |
|
|
sys::fs::perms::owner_exe,
|
|
Stat->getPermissions());
|
|
Stat = FS.status("/a/b/c");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isRegularFile());
|
|
ASSERT_EQ(sys::fs::perms::owner_read | sys::fs::perms::owner_write,
|
|
Stat->getPermissions());
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddDirectoryThenAddChild) {
|
|
FS.addFile("/a", 0, MemoryBuffer::getMemBuffer(""), /*User=*/None,
|
|
/*Group=*/None, sys::fs::file_type::directory_file);
|
|
FS.addFile("/a/b", 0, MemoryBuffer::getMemBuffer("abc"), /*User=*/None,
|
|
/*Group=*/None, sys::fs::file_type::regular_file);
|
|
auto Stat = FS.status("/a");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isDirectory());
|
|
Stat = FS.status("/a/b");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n" << FS.toString();
|
|
ASSERT_TRUE(Stat->isRegularFile());
|
|
}
|
|
|
|
// Test that the name returned by status() is in the same form as the path that
|
|
// was requested (to match the behavior of RealFileSystem).
|
|
TEST_F(InMemoryFileSystemTest, StatusName) {
|
|
NormalizedFS.addFile("/a/b/c", 0, MemoryBuffer::getMemBuffer("abc"),
|
|
/*User=*/None,
|
|
/*Group=*/None, sys::fs::file_type::regular_file);
|
|
NormalizedFS.setCurrentWorkingDirectory("/a/b");
|
|
|
|
// Access using InMemoryFileSystem::status.
|
|
auto Stat = NormalizedFS.status("../b/c");
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n"
|
|
<< NormalizedFS.toString();
|
|
ASSERT_TRUE(Stat->isRegularFile());
|
|
ASSERT_EQ("../b/c", Stat->getName());
|
|
|
|
// Access using InMemoryFileAdaptor::status.
|
|
auto File = NormalizedFS.openFileForRead("../b/c");
|
|
ASSERT_FALSE(File.getError()) << File.getError() << "\n"
|
|
<< NormalizedFS.toString();
|
|
Stat = (*File)->status();
|
|
ASSERT_FALSE(Stat.getError()) << Stat.getError() << "\n"
|
|
<< NormalizedFS.toString();
|
|
ASSERT_TRUE(Stat->isRegularFile());
|
|
ASSERT_EQ("../b/c", Stat->getName());
|
|
|
|
// Access using a directory iterator.
|
|
std::error_code EC;
|
|
llvm::vfs::directory_iterator It = NormalizedFS.dir_begin("../b", EC);
|
|
// When on Windows, we end up with "../b\\c" as the name. Convert to Posix
|
|
// path for the sake of the comparison.
|
|
ASSERT_EQ("../b/c", getPosixPath(It->path()));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddHardLinkToFile) {
|
|
StringRef FromLink = "/path/to/FROM/link";
|
|
StringRef Target = "/path/to/TO/file";
|
|
FS.addFile(Target, 0, MemoryBuffer::getMemBuffer("content of target"));
|
|
EXPECT_TRUE(FS.addHardLink(FromLink, Target));
|
|
EXPECT_THAT(FromLink, IsHardLinkTo(&FS, Target));
|
|
EXPECT_TRUE(FS.status(FromLink)->getSize() == FS.status(Target)->getSize());
|
|
EXPECT_TRUE(FS.getBufferForFile(FromLink)->get()->getBuffer() ==
|
|
FS.getBufferForFile(Target)->get()->getBuffer());
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddHardLinkInChainPattern) {
|
|
StringRef Link0 = "/path/to/0/link";
|
|
StringRef Link1 = "/path/to/1/link";
|
|
StringRef Link2 = "/path/to/2/link";
|
|
StringRef Target = "/path/to/target";
|
|
FS.addFile(Target, 0, MemoryBuffer::getMemBuffer("content of target file"));
|
|
EXPECT_TRUE(FS.addHardLink(Link2, Target));
|
|
EXPECT_TRUE(FS.addHardLink(Link1, Link2));
|
|
EXPECT_TRUE(FS.addHardLink(Link0, Link1));
|
|
EXPECT_THAT(Link0, IsHardLinkTo(&FS, Target));
|
|
EXPECT_THAT(Link1, IsHardLinkTo(&FS, Target));
|
|
EXPECT_THAT(Link2, IsHardLinkTo(&FS, Target));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddHardLinkToAFileThatWasNotAddedBefore) {
|
|
EXPECT_FALSE(FS.addHardLink("/path/to/link", "/path/to/target"));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddHardLinkFromAFileThatWasAddedBefore) {
|
|
StringRef Link = "/path/to/link";
|
|
StringRef Target = "/path/to/target";
|
|
FS.addFile(Target, 0, MemoryBuffer::getMemBuffer("content of target"));
|
|
FS.addFile(Link, 0, MemoryBuffer::getMemBuffer("content of link"));
|
|
EXPECT_FALSE(FS.addHardLink(Link, Target));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddSameHardLinkMoreThanOnce) {
|
|
StringRef Link = "/path/to/link";
|
|
StringRef Target = "/path/to/target";
|
|
FS.addFile(Target, 0, MemoryBuffer::getMemBuffer("content of target"));
|
|
EXPECT_TRUE(FS.addHardLink(Link, Target));
|
|
EXPECT_FALSE(FS.addHardLink(Link, Target));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddFileInPlaceOfAHardLinkWithSameContent) {
|
|
StringRef Link = "/path/to/link";
|
|
StringRef Target = "/path/to/target";
|
|
StringRef Content = "content of target";
|
|
EXPECT_TRUE(FS.addFile(Target, 0, MemoryBuffer::getMemBuffer(Content)));
|
|
EXPECT_TRUE(FS.addHardLink(Link, Target));
|
|
EXPECT_TRUE(FS.addFile(Link, 0, MemoryBuffer::getMemBuffer(Content)));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddFileInPlaceOfAHardLinkWithDifferentContent) {
|
|
StringRef Link = "/path/to/link";
|
|
StringRef Target = "/path/to/target";
|
|
StringRef Content = "content of target";
|
|
StringRef LinkContent = "different content of link";
|
|
EXPECT_TRUE(FS.addFile(Target, 0, MemoryBuffer::getMemBuffer(Content)));
|
|
EXPECT_TRUE(FS.addHardLink(Link, Target));
|
|
EXPECT_FALSE(FS.addFile(Link, 0, MemoryBuffer::getMemBuffer(LinkContent)));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddHardLinkToADirectory) {
|
|
StringRef Dir = "path/to/dummy/dir";
|
|
StringRef Link = "/path/to/link";
|
|
StringRef File = "path/to/dummy/dir/target";
|
|
StringRef Content = "content of target";
|
|
EXPECT_TRUE(FS.addFile(File, 0, MemoryBuffer::getMemBuffer(Content)));
|
|
EXPECT_FALSE(FS.addHardLink(Link, Dir));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddHardLinkFromADirectory) {
|
|
StringRef Dir = "path/to/dummy/dir";
|
|
StringRef Target = "path/to/dummy/dir/target";
|
|
StringRef Content = "content of target";
|
|
EXPECT_TRUE(FS.addFile(Target, 0, MemoryBuffer::getMemBuffer(Content)));
|
|
EXPECT_FALSE(FS.addHardLink(Dir, Target));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, AddHardLinkUnderAFile) {
|
|
StringRef CommonContent = "content string";
|
|
FS.addFile("/a/b", 0, MemoryBuffer::getMemBuffer(CommonContent));
|
|
FS.addFile("/c/d", 0, MemoryBuffer::getMemBuffer(CommonContent));
|
|
EXPECT_FALSE(FS.addHardLink("/c/d/e", "/a/b"));
|
|
}
|
|
|
|
TEST_F(InMemoryFileSystemTest, RecursiveIterationWithHardLink) {
|
|
std::error_code EC;
|
|
FS.addFile("/a/b", 0, MemoryBuffer::getMemBuffer("content string"));
|
|
EXPECT_TRUE(FS.addHardLink("/c/d", "/a/b"));
|
|
auto I = vfs::recursive_directory_iterator(FS, "/", EC);
|
|
ASSERT_FALSE(EC);
|
|
std::vector<std::string> Nodes;
|
|
for (auto E = vfs::recursive_directory_iterator(); !EC && I != E;
|
|
I.increment(EC)) {
|
|
Nodes.push_back(getPosixPath(I->path()));
|
|
}
|
|
EXPECT_THAT(Nodes, testing::UnorderedElementsAre("/a", "/a/b", "/c", "/c/d"));
|
|
}
|
|
|
|
// NOTE: in the tests below, we use '//root/' as our root directory, since it is
|
|
// a legal *absolute* path on Windows as well as *nix.
|
|
class VFSFromYAMLTest : public ::testing::Test {
|
|
public:
|
|
int NumDiagnostics;
|
|
|
|
void SetUp() override { NumDiagnostics = 0; }
|
|
|
|
static void CountingDiagHandler(const SMDiagnostic &, void *Context) {
|
|
VFSFromYAMLTest *Test = static_cast<VFSFromYAMLTest *>(Context);
|
|
++Test->NumDiagnostics;
|
|
}
|
|
|
|
IntrusiveRefCntPtr<vfs::FileSystem>
|
|
getFromYAMLRawString(StringRef Content,
|
|
IntrusiveRefCntPtr<vfs::FileSystem> ExternalFS) {
|
|
std::unique_ptr<MemoryBuffer> Buffer = MemoryBuffer::getMemBuffer(Content);
|
|
return getVFSFromYAML(std::move(Buffer), CountingDiagHandler, "", this,
|
|
ExternalFS);
|
|
}
|
|
|
|
IntrusiveRefCntPtr<vfs::FileSystem> getFromYAMLString(
|
|
StringRef Content,
|
|
IntrusiveRefCntPtr<vfs::FileSystem> ExternalFS = new DummyFileSystem()) {
|
|
std::string VersionPlusContent("{\n 'version':0,\n");
|
|
VersionPlusContent += Content.slice(Content.find('{') + 1, StringRef::npos);
|
|
return getFromYAMLRawString(VersionPlusContent, ExternalFS);
|
|
}
|
|
|
|
// This is intended as a "XFAIL" for windows hosts.
|
|
bool supportsSameDirMultipleYAMLEntries() {
|
|
Triple Host(Triple::normalize(sys::getProcessTriple()));
|
|
return !Host.isOSWindows();
|
|
}
|
|
};
|
|
|
|
TEST_F(VFSFromYAMLTest, BasicVFSFromYAML) {
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS;
|
|
FS = getFromYAMLString("");
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString("[]");
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString("'string'");
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
EXPECT_EQ(3, NumDiagnostics);
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, MappedFiles) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addRegularFile("//root/foo/bar/a");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'file1',\n"
|
|
" 'external-contents': '//root/foo/bar/a'\n"
|
|
" },\n"
|
|
" {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'file2',\n"
|
|
" 'external-contents': '//root/foo/b'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"}\n"
|
|
"]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(FS);
|
|
|
|
// file
|
|
ErrorOr<vfs::Status> S = O->status("//root/file1");
|
|
ASSERT_FALSE(S.getError());
|
|
EXPECT_EQ("//root/foo/bar/a", S->getName());
|
|
EXPECT_TRUE(S->IsVFSMapped);
|
|
|
|
ErrorOr<vfs::Status> SLower = O->status("//root/foo/bar/a");
|
|
EXPECT_EQ("//root/foo/bar/a", SLower->getName());
|
|
EXPECT_TRUE(S->equivalent(*SLower));
|
|
EXPECT_FALSE(SLower->IsVFSMapped);
|
|
|
|
// file after opening
|
|
auto OpenedF = O->openFileForRead("//root/file1");
|
|
ASSERT_FALSE(OpenedF.getError());
|
|
auto OpenedS = (*OpenedF)->status();
|
|
ASSERT_FALSE(OpenedS.getError());
|
|
EXPECT_EQ("//root/foo/bar/a", OpenedS->getName());
|
|
EXPECT_TRUE(OpenedS->IsVFSMapped);
|
|
|
|
// directory
|
|
S = O->status("//root/");
|
|
ASSERT_FALSE(S.getError());
|
|
EXPECT_TRUE(S->isDirectory());
|
|
EXPECT_TRUE(S->equivalent(*O->status("//root/"))); // non-volatile UniqueID
|
|
|
|
// broken mapping
|
|
EXPECT_EQ(O->status("//root/file2").getError(),
|
|
llvm::errc::no_such_file_or_directory);
|
|
EXPECT_EQ(0, NumDiagnostics);
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, CaseInsensitive) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addRegularFile("//root/foo/bar/a");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'case-sensitive': 'false',\n"
|
|
" 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'XX',\n"
|
|
" 'external-contents': '//root/foo/bar/a'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"}]}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(FS);
|
|
|
|
ErrorOr<vfs::Status> S = O->status("//root/XX");
|
|
ASSERT_FALSE(S.getError());
|
|
|
|
ErrorOr<vfs::Status> SS = O->status("//root/xx");
|
|
ASSERT_FALSE(SS.getError());
|
|
EXPECT_TRUE(S->equivalent(*SS));
|
|
SS = O->status("//root/xX");
|
|
EXPECT_TRUE(S->equivalent(*SS));
|
|
SS = O->status("//root/Xx");
|
|
EXPECT_TRUE(S->equivalent(*SS));
|
|
EXPECT_EQ(0, NumDiagnostics);
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, CaseSensitive) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addRegularFile("//root/foo/bar/a");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'case-sensitive': 'true',\n"
|
|
" 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'XX',\n"
|
|
" 'external-contents': '//root/foo/bar/a'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"}]}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(FS);
|
|
|
|
ErrorOr<vfs::Status> SS = O->status("//root/xx");
|
|
EXPECT_EQ(SS.getError(), llvm::errc::no_such_file_or_directory);
|
|
SS = O->status("//root/xX");
|
|
EXPECT_EQ(SS.getError(), llvm::errc::no_such_file_or_directory);
|
|
SS = O->status("//root/Xx");
|
|
EXPECT_EQ(SS.getError(), llvm::errc::no_such_file_or_directory);
|
|
EXPECT_EQ(0, NumDiagnostics);
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, IllegalVFSFile) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
|
|
// invalid YAML at top-level
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString("{]", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
// invalid YAML in roots
|
|
FS = getFromYAMLString("{ 'roots':[}", Lower);
|
|
// invalid YAML in directory
|
|
FS = getFromYAMLString(
|
|
"{ 'roots':[ { 'name': 'foo', 'type': 'directory', 'contents': [}",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
// invalid configuration
|
|
FS = getFromYAMLString("{ 'knobular': 'true', 'roots':[] }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString("{ 'case-sensitive': 'maybe', 'roots':[] }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
// invalid roots
|
|
FS = getFromYAMLString("{ 'roots':'' }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString("{ 'roots':{} }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
// invalid entries
|
|
FS = getFromYAMLString(
|
|
"{ 'roots':[ { 'type': 'other', 'name': 'me', 'contents': '' }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString("{ 'roots':[ { 'type': 'file', 'name': [], "
|
|
"'external-contents': 'other' }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString(
|
|
"{ 'roots':[ { 'type': 'file', 'name': 'me', 'external-contents': [] }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString(
|
|
"{ 'roots':[ { 'type': 'file', 'name': 'me', 'external-contents': {} }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString(
|
|
"{ 'roots':[ { 'type': 'directory', 'name': 'me', 'contents': {} }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString(
|
|
"{ 'roots':[ { 'type': 'directory', 'name': 'me', 'contents': '' }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString(
|
|
"{ 'roots':[ { 'thingy': 'directory', 'name': 'me', 'contents': [] }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
// missing mandatory fields
|
|
FS = getFromYAMLString("{ 'roots':[ { 'type': 'file', 'name': 'me' }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString(
|
|
"{ 'roots':[ { 'type': 'file', 'external-contents': 'other' }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString("{ 'roots':[ { 'name': 'me', 'contents': [] }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
// duplicate keys
|
|
FS = getFromYAMLString("{ 'roots':[], 'roots':[] }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLString(
|
|
"{ 'case-sensitive':'true', 'case-sensitive':'true', 'roots':[] }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS =
|
|
getFromYAMLString("{ 'roots':[{'name':'me', 'name':'you', 'type':'file', "
|
|
"'external-contents':'blah' } ] }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
// missing version
|
|
FS = getFromYAMLRawString("{ 'roots':[] }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
// bad version number
|
|
FS = getFromYAMLRawString("{ 'version':'foo', 'roots':[] }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLRawString("{ 'version':-1, 'roots':[] }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
FS = getFromYAMLRawString("{ 'version':100000, 'roots':[] }", Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
EXPECT_EQ(24, NumDiagnostics);
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, UseExternalName) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addRegularFile("//root/external/file");
|
|
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS =
|
|
getFromYAMLString("{ 'roots': [\n"
|
|
" { 'type': 'file', 'name': '//root/A',\n"
|
|
" 'external-contents': '//root/external/file'\n"
|
|
" },\n"
|
|
" { 'type': 'file', 'name': '//root/B',\n"
|
|
" 'use-external-name': true,\n"
|
|
" 'external-contents': '//root/external/file'\n"
|
|
" },\n"
|
|
" { 'type': 'file', 'name': '//root/C',\n"
|
|
" 'use-external-name': false,\n"
|
|
" 'external-contents': '//root/external/file'\n"
|
|
" }\n"
|
|
"] }",
|
|
Lower);
|
|
ASSERT_TRUE(nullptr != FS.get());
|
|
|
|
// default true
|
|
EXPECT_EQ("//root/external/file", FS->status("//root/A")->getName());
|
|
// explicit
|
|
EXPECT_EQ("//root/external/file", FS->status("//root/B")->getName());
|
|
EXPECT_EQ("//root/C", FS->status("//root/C")->getName());
|
|
|
|
// global configuration
|
|
FS = getFromYAMLString("{ 'use-external-names': false,\n"
|
|
" 'roots': [\n"
|
|
" { 'type': 'file', 'name': '//root/A',\n"
|
|
" 'external-contents': '//root/external/file'\n"
|
|
" },\n"
|
|
" { 'type': 'file', 'name': '//root/B',\n"
|
|
" 'use-external-name': true,\n"
|
|
" 'external-contents': '//root/external/file'\n"
|
|
" },\n"
|
|
" { 'type': 'file', 'name': '//root/C',\n"
|
|
" 'use-external-name': false,\n"
|
|
" 'external-contents': '//root/external/file'\n"
|
|
" }\n"
|
|
"] }",
|
|
Lower);
|
|
ASSERT_TRUE(nullptr != FS.get());
|
|
|
|
// default
|
|
EXPECT_EQ("//root/A", FS->status("//root/A")->getName());
|
|
// explicit
|
|
EXPECT_EQ("//root/external/file", FS->status("//root/B")->getName());
|
|
EXPECT_EQ("//root/C", FS->status("//root/C")->getName());
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, MultiComponentPath) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addRegularFile("//root/other");
|
|
|
|
// file in roots
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS =
|
|
getFromYAMLString("{ 'roots': [\n"
|
|
" { 'type': 'file', 'name': '//root/path/to/file',\n"
|
|
" 'external-contents': '//root/other' }]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(nullptr != FS.get());
|
|
EXPECT_FALSE(FS->status("//root/path/to/file").getError());
|
|
EXPECT_FALSE(FS->status("//root/path/to").getError());
|
|
EXPECT_FALSE(FS->status("//root/path").getError());
|
|
EXPECT_FALSE(FS->status("//root/").getError());
|
|
|
|
// at the start
|
|
FS = getFromYAMLString(
|
|
"{ 'roots': [\n"
|
|
" { 'type': 'directory', 'name': '//root/path/to',\n"
|
|
" 'contents': [ { 'type': 'file', 'name': 'file',\n"
|
|
" 'external-contents': '//root/other' }]}]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(nullptr != FS.get());
|
|
EXPECT_FALSE(FS->status("//root/path/to/file").getError());
|
|
EXPECT_FALSE(FS->status("//root/path/to").getError());
|
|
EXPECT_FALSE(FS->status("//root/path").getError());
|
|
EXPECT_FALSE(FS->status("//root/").getError());
|
|
|
|
// at the end
|
|
FS = getFromYAMLString(
|
|
"{ 'roots': [\n"
|
|
" { 'type': 'directory', 'name': '//root/',\n"
|
|
" 'contents': [ { 'type': 'file', 'name': 'path/to/file',\n"
|
|
" 'external-contents': '//root/other' }]}]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(nullptr != FS.get());
|
|
EXPECT_FALSE(FS->status("//root/path/to/file").getError());
|
|
EXPECT_FALSE(FS->status("//root/path/to").getError());
|
|
EXPECT_FALSE(FS->status("//root/path").getError());
|
|
EXPECT_FALSE(FS->status("//root/").getError());
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, TrailingSlashes) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addRegularFile("//root/other");
|
|
|
|
// file in roots
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'roots': [\n"
|
|
" { 'type': 'directory', 'name': '//root/path/to////',\n"
|
|
" 'contents': [ { 'type': 'file', 'name': 'file',\n"
|
|
" 'external-contents': '//root/other' }]}]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(nullptr != FS.get());
|
|
EXPECT_FALSE(FS->status("//root/path/to/file").getError());
|
|
EXPECT_FALSE(FS->status("//root/path/to").getError());
|
|
EXPECT_FALSE(FS->status("//root/path").getError());
|
|
EXPECT_FALSE(FS->status("//root/").getError());
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, DirectoryIteration) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addDirectory("//root/");
|
|
Lower->addDirectory("//root/foo");
|
|
Lower->addDirectory("//root/foo/bar");
|
|
Lower->addRegularFile("//root/foo/bar/a");
|
|
Lower->addRegularFile("//root/foo/bar/b");
|
|
Lower->addRegularFile("//root/file3");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'use-external-names': false,\n"
|
|
" 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'file1',\n"
|
|
" 'external-contents': '//root/foo/bar/a'\n"
|
|
" },\n"
|
|
" {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'file2',\n"
|
|
" 'external-contents': '//root/foo/bar/b'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"}\n"
|
|
"]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(FS);
|
|
|
|
std::error_code EC;
|
|
checkContents(O->dir_begin("//root/", EC),
|
|
{"//root/file1", "//root/file2", "//root/file3", "//root/foo"});
|
|
|
|
checkContents(O->dir_begin("//root/foo/bar", EC),
|
|
{"//root/foo/bar/a", "//root/foo/bar/b"});
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, DirectoryIterationSameDirMultipleEntries) {
|
|
// https://llvm.org/bugs/show_bug.cgi?id=27725
|
|
if (!supportsSameDirMultipleYAMLEntries())
|
|
return;
|
|
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addDirectory("//root/zab");
|
|
Lower->addDirectory("//root/baz");
|
|
Lower->addRegularFile("//root/zab/a");
|
|
Lower->addRegularFile("//root/zab/b");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'use-external-names': false,\n"
|
|
" 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/baz/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'x',\n"
|
|
" 'external-contents': '//root/zab/a'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"},\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/baz/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'y',\n"
|
|
" 'external-contents': '//root/zab/b'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"}\n"
|
|
"]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(FS);
|
|
|
|
std::error_code EC;
|
|
|
|
checkContents(O->dir_begin("//root/baz/", EC),
|
|
{"//root/baz/x", "//root/baz/y"});
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, RecursiveDirectoryIterationLevel) {
|
|
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addDirectory("//root/a");
|
|
Lower->addDirectory("//root/a/b");
|
|
Lower->addDirectory("//root/a/b/c");
|
|
Lower->addRegularFile("//root/a/b/c/file");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'use-external-names': false,\n"
|
|
" 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/a/b/c/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'file',\n"
|
|
" 'external-contents': '//root/a/b/c/file'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"},\n"
|
|
"]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
IntrusiveRefCntPtr<vfs::OverlayFileSystem> O(
|
|
new vfs::OverlayFileSystem(Lower));
|
|
O->pushOverlay(FS);
|
|
|
|
std::error_code EC;
|
|
|
|
// Test recursive_directory_iterator level()
|
|
vfs::recursive_directory_iterator I = vfs::recursive_directory_iterator(
|
|
*O, "//root", EC),
|
|
E;
|
|
ASSERT_FALSE(EC);
|
|
for (int l = 0; I != E; I.increment(EC), ++l) {
|
|
ASSERT_FALSE(EC);
|
|
EXPECT_EQ(I.level(), l);
|
|
}
|
|
EXPECT_EQ(I, E);
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, RelativePaths) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
// Filename at root level without a parent directory.
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'roots': [\n"
|
|
" { 'type': 'file', 'name': 'file-not-in-directory.h',\n"
|
|
" 'external-contents': '//root/external/file'\n"
|
|
" }\n"
|
|
"] }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
// Relative file path.
|
|
FS = getFromYAMLString("{ 'roots': [\n"
|
|
" { 'type': 'file', 'name': 'relative/file/path.h',\n"
|
|
" 'external-contents': '//root/external/file'\n"
|
|
" }\n"
|
|
"] }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
// Relative directory path.
|
|
FS = getFromYAMLString(
|
|
"{ 'roots': [\n"
|
|
" { 'type': 'directory', 'name': 'relative/directory/path.h',\n"
|
|
" 'contents': []\n"
|
|
" }\n"
|
|
"] }",
|
|
Lower);
|
|
EXPECT_EQ(nullptr, FS.get());
|
|
|
|
EXPECT_EQ(3, NumDiagnostics);
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, NonFallthroughDirectoryIteration) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addDirectory("//root/");
|
|
Lower->addRegularFile("//root/a");
|
|
Lower->addRegularFile("//root/b");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'use-external-names': false,\n"
|
|
" 'fallthrough': false,\n"
|
|
" 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'c',\n"
|
|
" 'external-contents': '//root/a'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"}\n"
|
|
"]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
std::error_code EC;
|
|
checkContents(FS->dir_begin("//root/", EC),
|
|
{"//root/c"});
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, DirectoryIterationWithDuplicates) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addDirectory("//root/");
|
|
Lower->addRegularFile("//root/a");
|
|
Lower->addRegularFile("//root/b");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'use-external-names': false,\n"
|
|
" 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'a',\n"
|
|
" 'external-contents': '//root/a'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"}\n"
|
|
"]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
std::error_code EC;
|
|
checkContents(FS->dir_begin("//root/", EC),
|
|
{"//root/a", "//root/b"});
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, DirectoryIterationErrorInVFSLayer) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addDirectory("//root/");
|
|
Lower->addDirectory("//root/foo");
|
|
Lower->addRegularFile("//root/foo/a");
|
|
Lower->addRegularFile("//root/foo/b");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'use-external-names': false,\n"
|
|
" 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'bar/a',\n"
|
|
" 'external-contents': '//root/foo/a'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"}\n"
|
|
"]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
std::error_code EC;
|
|
checkContents(FS->dir_begin("//root/foo", EC),
|
|
{"//root/foo/a", "//root/foo/b"});
|
|
}
|
|
|
|
TEST_F(VFSFromYAMLTest, GetRealPath) {
|
|
IntrusiveRefCntPtr<DummyFileSystem> Lower(new DummyFileSystem());
|
|
Lower->addDirectory("//dir/");
|
|
Lower->addRegularFile("/foo");
|
|
Lower->addSymlink("/link");
|
|
IntrusiveRefCntPtr<vfs::FileSystem> FS = getFromYAMLString(
|
|
"{ 'use-external-names': false,\n"
|
|
" 'roots': [\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//root/',\n"
|
|
" 'contents': [ {\n"
|
|
" 'type': 'file',\n"
|
|
" 'name': 'bar',\n"
|
|
" 'external-contents': '/link'\n"
|
|
" }\n"
|
|
" ]\n"
|
|
"},\n"
|
|
"{\n"
|
|
" 'type': 'directory',\n"
|
|
" 'name': '//dir/',\n"
|
|
" 'contents': []\n"
|
|
"}\n"
|
|
"]\n"
|
|
"}",
|
|
Lower);
|
|
ASSERT_TRUE(FS.get() != nullptr);
|
|
|
|
// Regular file present in underlying file system.
|
|
SmallString<16> RealPath;
|
|
EXPECT_FALSE(FS->getRealPath("/foo", RealPath));
|
|
EXPECT_EQ(RealPath.str(), "/foo");
|
|
|
|
// File present in YAML pointing to symlink in underlying file system.
|
|
EXPECT_FALSE(FS->getRealPath("//root/bar", RealPath));
|
|
EXPECT_EQ(RealPath.str(), "/symlink");
|
|
|
|
// Directories should fall back to the underlying file system is possible.
|
|
EXPECT_FALSE(FS->getRealPath("//dir/", RealPath));
|
|
EXPECT_EQ(RealPath.str(), "//dir/");
|
|
|
|
// Try a non-existing file.
|
|
EXPECT_EQ(FS->getRealPath("/non_existing", RealPath),
|
|
errc::no_such_file_or_directory);
|
|
}
|