[PATCH 5/6] events: Cleanup lost schroot sessions if any

[Anton Mikanovich <amikan@ilbers.de>]

In case the user will only open imager schroot session but not close it
we need to find and clean it up.

Signed-off-by: Anton Mikanovich <amikan@ilbers.de>
---
 meta/classes/isar-events.bbclass | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/meta/classes/isar-events.bbclass b/meta/classes/isar-events.bbclass
index 92aff20..f1e9dcb 100644
--- a/meta/classes/isar-events.bbclass
+++ b/meta/classes/isar-events.bbclass
@@ -4,6 +4,8 @@
 # Copyright (C) 2015-2017 ilbers GmbH
 # Copyright (c) Siemens AG, 2018
 
+inherit sbuild
+
 addhandler build_started
 
 python build_started() {
@@ -51,6 +53,22 @@ python build_completed() {
 
     basepath = tmpdir + '/work/'
 
+    bitbake_id = d.getVar('BITBAKE_BUILD_ID', True)
+    sessions = subprocess.run('schroot -l --all-sessions | grep isar | grep %s' % bitbake_id,
+                              shell=True, stdout=subprocess.PIPE).stdout.decode('utf-8')
+    for line in sessions.splitlines():
+        session_id = line.split(':', 1)[1]
+        bb.debug(1, 'Closing imager session %s' % session_id)
+        id = subprocess.run("schroot -d / -r -c %s -- printenv -0 SCHROOT_ALIAS_NAME" % session_id,
+                            shell=True, check=True, stdout=subprocess.PIPE).stdout.decode('utf-8')
+        if id:
+            subprocess.run('schroot --recover-session -c %s' % session_id, shell=True, check=True)
+            subprocess.run('schroot -e -c %s' % session_id, shell=True, check=True)
+        if 'id' in locals():
+            d.setVar('SBUILD_CHROOT', id)
+            bb.build.exec_func('remove_mounts', d)
+            bb.build.exec_func('schroot_delete_configs', d)
+
     with open('/proc/mounts') as f:
         for line in f.readlines():
             if basepath in line:
-- 
2.17.1