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 
13 using namespace llvm;
14 using namespace llvm::unittest;
15 
16 static 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 
36 SmallString<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, /*IsText=*/true);
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