commit 78b8a1430debfb9361e425e52e8366409b9e5cd2
author Josh Gao <jmgao@google.com> Wed Nov 09 01:00:41 2016 -0800
committer Josh Gao <jmgao@google.com> Wed Nov 09 18:12:10 2016 -0800
tree 63054645e21f43fc7626156843a511398a61194e
parent b5c496346f19cba410b3191b9c3297507bba854a

versioner: use a virtual filesystem for input files.

Use an InMemoryFileSystem to store and share input files across
compilations.

This improves the result of `time versioner` further, from:
    versioner  109.12s user 17.43s system 2433% cpu 5.201 total
to:
    versioner  112.20s user 1.38s system 2416% cpu 4.700 total

Bug: http://b/32748936
Test: python run_tests.py
Change-Id: I72d37b7c30850b8399cc40338247700fe3e7b2f9

tools/versioner/src/Android.mk

diff --git a/tools/versioner/src/Android.mk b/tools/versioner/src/Android.mk
index 713d6c1..c90e02f 100644
--- a/tools/versioner/src/Android.mk
+++ b/tools/versioner/src/Android.mk
@@ -31,7 +31,8 @@
   Driver.cpp \
   Preprocessor.cpp \
   SymbolDatabase.cpp \
-  Utils.cpp
+  Utils.cpp \
+  VFS.cpp
 
 LOCAL_SHARED_LIBRARIES := libclang libLLVM libbase