[gjs: 4/5] CI: add GitLab continuous integration

[Gitlab Administrative User <gitlab src gnome org>]

commit eb43f3577e2de767c91be779f6d1023a5f1724c5
Author: Claudio André <claudioandre br gmail com>
Date:   Tue Oct 31 07:17:56 2017 -0200

    CI: add GitLab continuous integration
    
    It uses the shared runners provided by GNOME at jenkins.gnome.org.

 .gitlab-ci.yml | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..c6352ea
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,63 @@
+services:
+  - docker
+
+stages:
+- build
+- cleanup
+
+before_script:
+  - cd ..
+  - ln -s $(pwd) /cwd
+
+.build: &build
+  stage: build
+  artifacts:
+    when: always
+    paths:
+    - $(pwd)/logFile
+
+  script:
+    # Clean the build machine
+    - rm -rf jhbuild/
+    - rm -rf .cache/
+
+    # Make the log File accessible
+    - mkdir -p .cache/jhbuild/build/gjs
+    - touch .cache/jhbuild/build/gjs/test-suite.log
+    - ln -f .cache/jhbuild/build/gjs/test-suite.log $(pwd)/gjs/logFile
+
+    # Build and test GJS
+    - 'if [[ -d "$(pwd)/SAVED/$OS/jhbuild" ]]; then
+         $(pwd)/gjs/test/test-ci.sh GET_FILES;
+       else
+         $(pwd)/gjs/test/test-ci.sh BUILD_MOZ;
+       fi'
+    - $(pwd)/gjs/test/test-ci.sh GJS
+
+ubuntu_gcc:
+  <<: *build
+  image: ubuntu:rolling
+  variables:
+    BASE: ubuntu
+    OS: ubuntu:rolling
+    CC: gcc
+
+fedora_gcc:
+  <<: *build
+  image: fedora:latest
+  variables:
+    BASE: fedora
+    OS: fedora:latest
+    CC: gcc
+    BUILD_OPTS: "--enable-ubsan"
+
+on_failure:
+  stage: cleanup
+  script:
+  - echo '-- FAILURE --'
+  - 'if [[ -f $(pwd)/.cache/jhbuild/build/gjs/test-suite.log ]]; then
+        cat $(pwd)/.cache/jhbuild/build/gjs/test-suite.log;
+    else
+        echo "-- NO LOG FILE FOUND --";
+    fi'
+  when: on_failure