[PATCH 02/10] toaster: properly detect failed server start

[Alex DAMIAN <alexandru.damian@intel.com>]

From: Alexandru DAMIAN <alexandru.damian@intel.com>

This patch brings in reading the server log if the server
fails to start. This is the first step in displaying the errors
in a manner that is actionable by the user.

[YOCTO #7285]

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
---
 lib/toaster/bldcontrol/localhostbecontroller.py         |  5 ++++-
 lib/toaster/bldcontrol/management/commands/runbuilds.py | 12 +++++++++---
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/lib/toaster/bldcontrol/localhostbecontroller.py b/lib/toaster/bldcontrol/localhostbecontroller.py
index 005c464..4814b84 100644
--- a/lib/toaster/bldcontrol/localhostbecontroller.py
+++ b/lib/toaster/bldcontrol/localhostbecontroller.py
@@ -108,7 +108,7 @@ class LocalhostBEController(BuildEnvironmentController):
         logger.debug("localhostbecontroller: running the listener at %s" % own_bitbake)
 
 
-        cmd = "bash -c \"source %s/oe-init-build-env %s && bitbake --read conf/toaster-pre.conf --postread conf/toaster.conf --server-only -t xmlrpc -B 0.0.0.0:0 && DATABASE_URL=%s BBSERVER=0.0.0.0:-1 daemon -d -i -D %s -o toaster_ui.log -- %s --observe-only -u toasterui &\"" % (self.pokydirname, self.be.builddir,
+        cmd = "bash -c \"source %s/oe-init-build-env %s && bitbake --read conf/toaster-pre.conf --postread conf/toaster.conf --server-only -t xmlrpc -B 0.0.0.0:0 >toaster_server.log && DATABASE_URL=%s BBSERVER=0.0.0.0:-1 daemon -d -i -D %s -o toaster_ui.log -- %s --observe-only -u toasterui &\"" % (self.pokydirname, self.be.builddir,
                 self.dburl, self.be.builddir, own_bitbake)
         port = "-1"
         cmdoutput = self._shellcmd(cmd)
@@ -290,6 +290,9 @@ class LocalhostBEController(BuildEnvironmentController):
         self.islayerset = True
         return True
 
+    def readServerLogFile(self):
+        return open(os.path.join(self.be.builddir, "toaster_server.log"), "r").read()
+
     def release(self):
         assert self.be.sourcedir and os.path.exists(self.be.builddir)
         import shutil
diff --git a/lib/toaster/bldcontrol/management/commands/runbuilds.py b/lib/toaster/bldcontrol/management/commands/runbuilds.py
index c4ab87b..3de582c 100644
--- a/lib/toaster/bldcontrol/management/commands/runbuilds.py
+++ b/lib/toaster/bldcontrol/management/commands/runbuilds.py
@@ -78,10 +78,16 @@ class Command(NoArgsCommand):
         except Exception as e:
             logger.error("runbuilds: Error executing shell command %s" % e)
             traceback.print_exc(e)
+            if "[Errno 111] Connection refused" in str(e):
+                # Connection refused, read toaster_server.out
+                errmsg = bec.readServerLogFile()
+            else:
+                errmsg = str(e)
+
             BRError.objects.create(req = br,
-                errtype = str(type(e)),
-                errmsg = str(e),
-                traceback = traceback.format_exc(e))
+                    errtype = str(type(e)),
+                    errmsg = errmsg,
+                    traceback = traceback.format_exc(e))
             br.state = BuildRequest.REQ_FAILED
             br.save()
             bec.be.lock = BuildEnvironment.LOCK_FREE
-- 
1.9.1