[OE-core] [PATCH] sstate: Add note when performing sstate mirror checks

[Richard Purdie]

The build can pause whilst remote sstate mirrors are checked for 
sstate objects. Inform the user this is happening.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>

diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index de3519a..949ba4a 100644
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -744,6 +744,7 @@ def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d, siginfo=False):
             tasklist.append((task, sstatefile))
 
         if tasklist:
+            bb.note("Checking sstate mirror object availability (for %s objects)" % len(tasklist))
             import multiprocessing
             nproc = min(multiprocessing.cpu_count(), len(tasklist))
             pool = oe.utils.ThreadedPool(nproc)