honor the $XDG_CACHE_HOME env variable

DescentDevelopers · Oct 7, 2024 · 3f8764d · 3f8764d
1 parent 48c8775
commit 3f8764d
Showing 1 changed file with 16 additions and 6 deletions.
diff --git a/Descent3/init.cpp b/Descent3/init.cpp
@@ -1957,13 +1957,23 @@ void SetupTempDirectory(void) {
   if (t_arg) {
     Descent3_temp_directory = GameArgs[t_arg + 1];
   } else {
-    std::error_code ec;
-    std::filesystem::path tempPath = std::filesystem::temp_directory_path(ec);
-    if (ec) {
-      Error("Could not find temporary directory: \"%s\"", ec.message().c_str() );
-      exit(1);
+    char *envr = SDL_getenv("XDG_CACHE_HOME");
+    if (envr) {
+      Descent3_temp_directory = std::filesystem::path(envr) / "Descent3";
+    } else {
+      envr = SDL_getenv("HOME");
+      if (envr) {
+        Descent3_temp_directory = std::filesystem::path(envr) / ".cache" / "Descent3";
+      } else {
+        std::error_code ec;
+        std::filesystem::path tempPath = std::filesystem::temp_directory_path(ec);
+        if (ec) {
+          Error("Could not find temporary directory: \"%s\"", ec.message().c_str() );
+          exit(1);
+        }
+        Descent3_temp_directory = tempPath / "Descent3" / "cache";
+      }
     }
-    Descent3_temp_directory = tempPath / "Descent3" / "cache";
   }
 
   std::error_code ec;