Drone speedup (#2588)

* Start switchind test to custom Docker images

Using Docker images with pre-installed delendencies will speedup
testing.

* Debug build in drone.io

* Use variable instead hardcoded path to the source

* Debug variable substitution by drone

Also according to comments in code DRONE_WORKSPACE is deprecated and
CI_WORKSPACE is a new form.

* One more try to use variables.

It looks like drone uses same rules as docker-compose:
https://docs.docker.com/compose/compose-file/#variable-substitution

* Cleanup debug

* Less verbose make output

* Be consistent in variable escaping

It works without escaping only becuse ${VAR} currently expanded by
drone, but $VAR is not.

* Use alpine base image for nodejs

It is smaller.

* Return rspamd-test

* Revert variable escaping

Wihtout escaping it is more easy to copy-past command for testing.
Just don't use ${var} when var should be expanded by shell and not
drone.

* Add debug

* Fix yaml parsing error

* Fix exit code capture

It should be done on the same line, because drone insert 'echo + cmd'
between commands.

* Remove debug

* Readability

No functional changes.

* Return functional tests

* Be consistent

* Add git stub for coveralls

* Send coverage

* Fix yaml parsing error

* Add links to Dockerfiles

* Send test log in case of test failure

XXX if rspamd-test failed, but functional was successful robot log will be
attached (but not useful).

* Don't run rspamd-test and functional tests in parallel

It looks like there is a race condition in writing coverage files.

* Try to run tests in parallel

* Add debug

* Fix parallel test run

test/rspamd-test and functional test both use luacov.stats.out file
in current directory. Run ./rspamd-test from anther directory.

* Use drone condition for sending coveralls report

Also don't send report if empty tocken was provided.

* Add mininal python3 compatibility

1 files changed, 9 insertions, 2 deletions

diff --git a/test/functional/util/merge_coveralls.py b/test/functional/util/merge_coveralls.py
index dca00518d..66648a135 100755
--- a/test/functional/util/merge_coveralls.py
+++ b/test/functional/util/merge_coveralls.py
@@ -1,10 +1,17 @@
 #!/usr/bin/env python
 
+from __future__ import print_function
+
 import argparse
 import json
 import os
+import sys
+
 import requests
 
+# Python 2/3 compatibility
+if sys.version_info.major > 2:
+    xrange = range
 
 # install path to repository mapping
 # if path mapped to None, it means that the file should be ignored (i.e. test file/helper)
@@ -132,12 +139,12 @@ if __name__ == '__main__':
     with open(args.output, 'w') as f:
         f.write(json.dumps(j1))
 
-    if not args.token is None:
+    if args.token:
         j1['repo_token'] = args.token
         print("sending data to coveralls...")
         r = requests.post('https://coveralls.io/api/v1/jobs', files={"json_file": json.dumps(j1)})
         response = json.loads(r.text)
-        print "uploaded %s\nmessage:%s" % (response['url'], response['message'])
+        print("uploaded %s\nmessage:%s" % (response['url'], response['message']))
 
     # post https://coveralls.io/api/v1/jobs
     # print args