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-rw-r--r--llvm/lib/Support/Unix/Path.inc16
-rw-r--r--llvm/unittests/Support/Path.cpp20
2 files changed, 31 insertions, 5 deletions
diff --git a/llvm/lib/Support/Unix/Path.inc b/llvm/lib/Support/Unix/Path.inc
index 7a5816ba1dd..93f8982196b 100644
--- a/llvm/lib/Support/Unix/Path.inc
+++ b/llvm/lib/Support/Unix/Path.inc
@@ -920,12 +920,18 @@ std::error_code real_path(const Twine &path, SmallVectorImpl<char> &dest,
namespace path {
bool home_directory(SmallVectorImpl<char> &result) {
- if (char *RequestedDir = getenv("HOME")) {
- result.clear();
- result.append(RequestedDir, RequestedDir + strlen(RequestedDir));
- return true;
+ char *RequestedDir = getenv("HOME");
+ if (!RequestedDir) {
+ struct passwd *pw = getpwuid(getuid());
+ if (pw && pw->pw_dir)
+ RequestedDir = pw->pw_dir;
}
- return false;
+ if (!RequestedDir)
+ return false;
+
+ result.clear();
+ result.append(RequestedDir, RequestedDir + strlen(RequestedDir));
+ return true;
}
static bool getDarwinConfDir(bool TempDir, SmallVectorImpl<char> &Result) {
diff --git a/llvm/unittests/Support/Path.cpp b/llvm/unittests/Support/Path.cpp
index 4883adef165..afa5a5a0d46 100644
--- a/llvm/unittests/Support/Path.cpp
+++ b/llvm/unittests/Support/Path.cpp
@@ -328,6 +328,26 @@ TEST(Support, HomeDirectory) {
}
}
+#ifndef LLVM_ON_WIN32
+TEST(Support, HomeDirectoryWithNoEnv) {
+ std::string Original;
+ char const *path = ::getenv("HOME");
+ // Don't try to test if we don't have something to compare against.
+ if (!path)
+ return;
+ Original = path;
+ ::unsetenv("HOME");
+
+ SmallString<128> HomeDir;
+ auto status = path::home_directory(HomeDir);
+ EXPECT_TRUE(status);
+ EXPECT_EQ(Original, HomeDir);
+
+ // Now put the original environment variable back
+ ::setenv("HOME", Original.c_str(), 1);
+}
+#endif
+
TEST(Support, UserCacheDirectory) {
SmallString<13> CacheDir;
SmallString<20> CacheDir2;
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