Fallback to getpwuid in the unlikely case $HOME is underfined

Add a homedir() helper function, and document the $kak_config
env var.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/file.hh b/src/file.hh
index 23fbe0a2..232ff539 100644
--- a/src/file.hh
+++ b/src/file.hh
@@ -25,6 +25,7 @@ String real_path(StringView filename);
 String compact_path(StringView filename);
 
 StringView tmpdir();
+StringView homedir();
 
 // returns pair { directory, filename }
 std::pair<StringView, StringView> split_path(StringView path);