From 6b9bdad3b68b12ff8e2075d54c1f7f005bb2f768 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 18 Mar 2021 15:02:39 +0200
Subject: Add noop mode to file cache, add --file-cache option to select

---
 build2/b.cxx | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'build2/b.cxx')

diff --git a/build2/b.cxx b/build2/b.cxx
index 81520bb..1ba15e2 100644
--- a/build2/b.cxx
+++ b/build2/b.cxx
@@ -762,7 +762,18 @@ main (int argc, char* argv[])
                     : nullopt));
 
     global_mutexes mutexes (sched.shard_size ());
-    file_cache fcache (sched);
+
+    bool fcache_comp (true);
+    if (ops.file_cache_specified ())
+    {
+      const string& v (ops.file_cache ());
+      if (v == "noop" || v == "none")
+        fcache_comp = false;
+      else if (v != "sync-lz4")
+        fail << "invalid --file-cache value '" << v << "'";
+    }
+
+    file_cache fcache (fcache_comp);
 
     // Trace some overall environment information.
     //
-- 
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