[libgda] CI: add a parallel build to expose simultaneos tests

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit d8e0d71769894fae7099d41c3e4297d504f0f78b
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Aug 12 21:36:42 2020 -0500

    CI: add a parallel build to expose simultaneos tests
    
    This change will use two identical build/test
    processes to stress multi-threaded/simultaneos access
    to dabases

 .gitlab-ci.yml | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8e56ee70b..a6c8fa537 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -88,6 +88,28 @@ library_build:
     - _build/doc/Gdaui-6.0
     expire_in: 1 week
 
+paralel_build:
+  stage: build
+  script:
+  - export PGPASSWORD=$POSTGRES_PASSWORD
+  - psql -h "postgres" -U "$POSTGRES_USER" -d "$POSTGRES_DB" -c "SELECT 'OK' AS status;"
+  - meson --prefix=/usr --buildtype=debug -Dgtk_doc=true --werror _build
+  - cd _build
+  - ninja
+  - broadwayd &
+  - GDK_BACKEND=broadway meson test
+  - ninja install
+  artifacts:
+    when: on_failure
+    paths:
+    - _build/meson-logs/testlog.txt
+    - _build/meson-logs/meson-log.txt
+    - _build/doc/C/libgda/html
+    - _build/doc/C/libgdaui/html
+    - _build/doc/Gda-6.0
+    - _build/doc/Gdaui-6.0
+    expire_in: 1 week
+
 pages:
   stage: deploy_doc
   script: