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(path: Argv0);
18
19 llvm::sys::fs::make_absolute(path&: BaseDir);
20
21 SmallString<128> PathInSameDir = BaseDir;
22 llvm::sys::path::append(path&: PathInSameDir, a: "llvm.srcdir.txt");
23
24 if (llvm::sys::fs::is_regular_file(Path: PathInSameDir))
25 return std::make_pair(x: true, y: std::move(PathInSameDir));
26
27 SmallString<128> PathInParentDir = llvm::sys::path::parent_path(path: BaseDir);
28
29 llvm::sys::path::append(path&: PathInParentDir, a: "llvm.srcdir.txt");
30 if (llvm::sys::fs::is_regular_file(Path: PathInParentDir))
31 return std::make_pair(x: true, y: 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(args&: Found, args&: InputFilePath) = findSrcDirMap(Argv0);
40
41 EXPECT_TRUE(Found) << "Unit test source directory file does not exist.";
42
43 auto File = MemoryBuffer::getFile(Filename: 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(RHS: (*File)->getBuffer().trim());
50 llvm::sys::path::append(path&: InputFilePath, a: "Inputs");
51 llvm::sys::path::native(path&: InputFilePath);
52 return InputFilePath;
53}
54

source code of llvm/lib/Testing/Support/SupportHelpers.cpp