[PATCHv2] buildstats-summary: round the floating point percentage

[Christopher Larson <kergoth@gmail.com>]

From: Christopher Larson <chris_larson@mentor.com>

This was rounded in python 2, but python 3 changed the default behavior of /.
We could switch to the same behavior as previous by switching to // rather
than /, but there's value in keeping at least one decimal point, to avoid the
misleading case where it says 0% but the reuse is non-zero.

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
---
 meta/classes/buildstats-summary.bbclass | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/meta/classes/buildstats-summary.bbclass b/meta/classes/buildstats-summary.bbclass
index d73350b..b86abcc 100644
--- a/meta/classes/buildstats-summary.bbclass
+++ b/meta/classes/buildstats-summary.bbclass
@@ -30,7 +30,11 @@ python buildstats_summary () {
                 header_printed = True
                 bb.note("Build completion summary:")
 
-            bb.note("  {0}: {1}% sstate reuse ({2} setscene, {3} scratch)".format(t, 100*len(sstate)/(len(sstate)+len(no_sstate)), len(sstate), len(no_sstate)))
+            sstate_count = len(sstate)
+            no_sstate_count = len(no_sstate)
+            total_count = sstate_count + no_sstate_count
+            bb.note("  {0}: {1:.1f}% sstate reuse({2} setscene, {3} scratch)".format(
+                t, round(100 * sstate_count / total_count, 1), sstate_count, no_sstate_count))
 }
 addhandler buildstats_summary
 buildstats_summary[eventmask] = "bb.event.BuildCompleted"
-- 
2.8.0