[PATCH v4 5/5] events: Do not warn on left mounts by default

[Anton Mikanovich <amikan@ilbers.de>]

Disable warnings printing for all the mount points left after build
completed to do not flood build logs too much in case build fail.

Logging can be enabled by setting ISAR_MOUNTS_CLEANUP_DEBUG to 1.

Signed-off-by: Anton Mikanovich <amikan@ilbers.de>
---
 meta-isar/conf/local.conf.sample | 3 +++
 meta/classes/isar-events.bbclass | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/meta-isar/conf/local.conf.sample b/meta-isar/conf/local.conf.sample
index 6cf1656..ca43261 100644
--- a/meta-isar/conf/local.conf.sample
+++ b/meta-isar/conf/local.conf.sample
@@ -219,3 +219,6 @@ USER_isar[flags] = "system create-home"
 
 # Uncomment the below line to debug WIC.
 # WIC_CREATE_EXTRA_ARGS += "-D"
+
+# Uncomment this to enable warn on all left mounts after build complete
+#ISAR_MOUNTS_CLEANUP_DEBUG ?= "1"
diff --git a/meta/classes/isar-events.bbclass b/meta/classes/isar-events.bbclass
index 2f8bf6e..60bb1a9 100644
--- a/meta/classes/isar-events.bbclass
+++ b/meta/classes/isar-events.bbclass
@@ -54,7 +54,8 @@ python build_completed() {
     with open('/proc/mounts') as f:
         for line in f.readlines():
             if basepath in line:
-                bb.warn('%s left mounted, unmounting...' % line.split()[1])
+                if d.getVar('ISAR_MOUNTS_CLEANUP_DEBUG', True) == '1':
+                    bb.warn('%s left mounted, unmounting...' % line.split()[1])
                 subprocess.call(
                     ["sudo", "umount", "-l", line.split()[1]],
                     stdout=subprocess.DEVNULL,
-- 
2.25.1