From 0e97e5cb1907ef55966fd27055698515e522c0f0 Mon Sep 17 00:00:00 2001
From: Pawel Bylica <chfast@gmail.com>
Date: Mon, 2 Nov 2015 09:49:17 +0000
Subject: [Support] Extend sys::path with user_cache_directory function.

Summary:
The new function sys::path::user_cache_directory tries to discover
a directory suitable for cache storage for current system user.

On Windows and Darwin it returns a path to system-specific user cache directory.

On Linux it follows XDG Base Directory Specification, what is:
- use non-empty $XDG_CACHE_HOME env var,
- use $HOME/.cache.

Reviewers: chapuni, aaron.ballman, rafael

Subscribers: rafael, aaron.ballman, llvm-commits

Differential Revision: http://reviews.llvm.org/D13801

llvm-svn: 251784
---
 llvm/lib/Support/Windows/Path.inc | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib/Support/Windows')

diff --git a/llvm/lib/Support/Windows/Path.inc b/llvm/lib/Support/Windows/Path.inc
index 30f0bb8204c..4167865b65f 100644
--- a/llvm/lib/Support/Windows/Path.inc
+++ b/llvm/lib/Support/Windows/Path.inc
@@ -765,6 +765,10 @@ bool getKnownFolderPath(KNOWNFOLDERID folderId, SmallVectorImpl<char> &result) {
   ::CoTaskMemFree(path);
   return ok;
 }
+
+bool getUserCacheDir(SmallVectorImpl<char> &Result) {
+  return getKnownFolderPath(FOLDERID_LocalAppData, Result);
+}
 }
 
 bool home_directory(SmallVectorImpl<char> &result) {
-- 
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