1
2#include "llvm/Testing/Support/SupportHelpers.h"
3
4#include "llvm/ADT/SmallString.h"
5#include "llvm/ADT/Twine.h"
6#include "llvm/Support/Error.h"
7#include "llvm/Support/FileSystem.h"
8#include "llvm/Support/MemoryBuffer.h"
9#include "llvm/Support/Path.h"
10
11#include "gtest/gtest.h"
12
13using namespace llvm;
14using namespace llvm::unittest;
15
16static std::pair<bool, SmallString<128>> findSrcDirMap(StringRef Argv0) {
17  SmallString<128> BaseDir = llvm::sys::path::parent_path(Argv0);
18
19  llvm::sys::fs::make_absolute(BaseDir);
20
21  SmallString<128> PathInSameDir = BaseDir;
22  llvm::sys::path::append(PathInSameDir, "llvm.srcdir.txt");
23
24  if (llvm::sys::fs::is_regular_file(PathInSameDir))
25    return std::make_pair(true, std::move(PathInSameDir));
26
27  SmallString<128> PathInParentDir = llvm::sys::path::parent_path(BaseDir);
28
29  llvm::sys::path::append(PathInParentDir, "llvm.srcdir.txt");
30  if (llvm::sys::fs::is_regular_file(PathInParentDir))
31    return std::make_pair(true, std::move(PathInParentDir));
32
33  return std::pair<bool, SmallString<128>>(false, {});
34}
35
36SmallString<128> llvm::unittest::getInputFileDirectory(const char *Argv0) {
37  bool Found = false;
38  SmallString<128> InputFilePath;
39  std::tie(Found, InputFilePath) = findSrcDirMap(Argv0);
40
41  EXPECT_TRUE(Found) << "Unit test source directory file does not exist.";
42
43  auto File = MemoryBuffer::getFile(InputFilePath);
44
45  EXPECT_TRUE(static_cast<bool>(File))
46      << "Could not open unit test source directory file.";
47
48  InputFilePath.clear();
49  InputFilePath.append((*File)->getBuffer().trim());
50  llvm::sys::path::append(InputFilePath, "Inputs");
51  llvm::sys::path::native(InputFilePath);
52  return InputFilePath;
53}
54