[pygobject/py3.8-fixes: 1/5] CI: Add a python 3.8-dev job

[Christoph Reiter <creiter src gnome org>]

commit aad0151175f4680ab9623d9bad6a29cfa653a4d6
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Fri Jun 7 16:28:30 2019 +0200

    CI: Add a python 3.8-dev job

 .gitlab-ci.yml        | 5 +++++
 .gitlab-ci/Dockerfile | 1 +
 2 files changed, 6 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d8c51d34..be27ed22 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -99,6 +99,11 @@ python3.7:
     PYENV_VERSION: "3.7.3-debug"
   <<: *defaults
 
+python3.8:
+  variables:
+    PYENV_VERSION: "3.8-dev-debug"
+  <<: *defaults
+
 pypy2.7:
   allow_failure: true
   variables:
diff --git a/.gitlab-ci/Dockerfile b/.gitlab-ci/Dockerfile
index 8606ae13..eaaa484a 100644
--- a/.gitlab-ci/Dockerfile
+++ b/.gitlab-ci/Dockerfile
@@ -45,5 +45,6 @@ RUN pyenv install --debug 2.7.16
 RUN pyenv install 3.5.7
 RUN pyenv install 3.6.8
 RUN pyenv install --debug 3.7.3
+RUN pyenv install --debug 3.8-dev
 
 ENV PATH="/usr/lib/ccache:${PATH}"