From 8c73c618d777a07c017ec0deefe88db83652827e Mon Sep 17 00:00:00 2001
From: Maksim Denisov <denisov.maksim@huawei.com>
Date: Mon, 17 Jun 2024 15:11:36 +0200
Subject: Move functionality from StorageConfig to related classes.

---
 src/buildtool/file_system/file_system_manager.hpp | 26 ++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

(limited to 'src/buildtool/file_system/file_system_manager.hpp')

diff --git a/src/buildtool/file_system/file_system_manager.hpp b/src/buildtool/file_system/file_system_manager.hpp
index 9e8826aa..93a911d8 100644
--- a/src/buildtool/file_system/file_system_manager.hpp
+++ b/src/buildtool/file_system/file_system_manager.hpp
@@ -18,7 +18,8 @@
 #include <array>
 #include <chrono>
 #include <cstddef>
-#include <cstdio>  // for std::fopen
+#include <cstdio>   // for std::fopen
+#include <cstdlib>  // std::exit, std::getenv
 #include <cstring>
 #include <exception>
 #include <filesystem>
@@ -28,10 +29,13 @@
 
 #ifdef __unix__
 #include <fcntl.h>
+#include <pwd.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
+#else
+#error "Non-unix is not supported yet"
 #endif
 
 #include "gsl/gsl"
@@ -139,6 +143,26 @@ class FileSystemManager {
         return CreateFileImpl(file) == CreationStatus::Created;
     }
 
+    /// \brief Determine user home directory
+    [[nodiscard]] static auto GetUserHome() noexcept -> std::filesystem::path {
+        char const* root{nullptr};
+
+#ifdef __unix__
+        root = std::getenv("HOME");
+        if (root == nullptr) {
+            root = getpwuid(getuid())->pw_dir;
+        }
+#endif
+
+        if (root == nullptr) {
+            Logger::Log(LogLevel::Error,
+                        "Cannot determine user home directory.");
+            std::exit(EXIT_FAILURE);
+        }
+
+        return root;
+    }
+
     /// \brief We are POSIX-compliant, therefore we only care about the string
     /// value the symlinks points to, whether it exists or not, not the target
     /// type. As such, we don't distinguish directory or file targets. However,
-- 
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