Treat empty XDG_CACHE_HOME same as unset

This matches the XDG base directory spec.
EleutherAI · Apr 8, 2022 · 88b21a7 · 88b21a7
1 parent ea2fba8
commit 88b21a7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/porting.cpp b/src/porting.cpp
@@ -608,7 +608,7 @@ void initializePaths()
  // First try $XDG_CACHE_HOME/PROJECT_NAME
  const char *cache_dir = getenv("XDG_CACHE_HOME");
  const char *home_dir = getenv("HOME");
- if (cache_dir) {
+ if (cache_dir && cache_dir[0] != '\0') {
  path_cache = std::string(cache_dir) + DIR_DELIM + PROJECT_NAME;
  } else if (home_dir) {
  // Then try $HOME/.cache/PROJECT_NAME