create ci, test run

.gitlab-ci.yml

+# .gitlab-ci.yml
+#
+# ink
+#
+# pipelines can be triggered manually in the web
+
+
+stages:
+  - test
+  - build
+
+variables:
+  GIT_STRATEGY:                    fetch
+  CARGO_HOME:                      "/ci-cache/${CI_PROJECT_NAME}/cargo/${CI_JOB_NAME}"
+  SCCACHE_DIR:                     "/ci-cache/${CI_PROJECT_NAME}/sccache"
+  CARGO_INCREMENTAL:               0
+  CI_SERVER_NAME:                  "GitLab CI"
+  RUSTFLAGS:                       "-C link-dead-code"
+
+.collect-artifacts:                &collect-artifacts
+  artifacts:
+    name:                          "${CI_JOB_NAME}_${CI_COMMIT_REF_NAME}"
+    when:                          on_success
+    expire_in:                     7 days
+    paths:
+      - artifacts/
+
+.docker-env:                       &docker-env
+  image:                           parity/rust-builder:latest
+  before_script:
+    - rustup show
+    - cargo --version
+    - sccache -s
+  only:
+    - master
+    - /^v[0-9]+\.[0-9]+.*$/        # i.e. v1.0, v2.1rc1
+    - schedules
+    - web
+    - /^[0-9]+$/                   # PRs
+  tags:
+    - linux-docker
+
+#### stage:                        test
+
+# addons:
+#   apt:
+#     packages:
+#       - libcurl4-openssl-dev
+#       - libelf-dev
+#       - libdw-dev
+#       - binutils-dev
+#       - libiberty-dev
+#       - g++
+#       - cmake
+#       - zlib1g-dev
+
+test-linux:
+  stage:                           test
+  <<:                              *docker-env
+  before_script:
+    # Print rustc and cargo versions
+    - rustc -vV
+    - cargo -vV
+    - bash --version
+    # Install cargo-kcov Cargo plugin
+    - cargo install --force cargo-kcov
+    - cargo kcov -vV
+    # Install kcov binary
+    - wget https://github.com/SimonKagstrom/kcov/archive/v36.tar.gz
+    - tar xzf v36.tar.gz
+    - pushd kcov-36
+    - mkdir build
+    - pushd build
+    - cmake ..
+    - make
+    - sudo make install # Puts kcov in the default location usually /usr/local/bin/kcov
+    - kcov --version
+    - popd
+    - popd
+    # Export cargo binaries, python and misc settings
+    - export PATH=$HOME/.local/bin:$HOME/.cargo/bin:$HOME/Library/Python/2.7/bin:$PATH
+    # Print current work directory state as directions.
+    - ls -lah
+    # install rust components
+    - rustup component add clippy rustfmt
+    # - rustup target add wasm32-unknown-unknown
+  script:
+  - |
+    ./scripts/check-workspace.sh
+    check_workspace=$?
+    if [ $check_workspace -eq 0 ]
+    then
+      # Execute and upload kcov results
+      cargo kcov --verbose --coveralls --all --no-clean-rebuild
+      kcov=$?
+      bash <(curl -s https://codecov.io/bash)
+    fi
+    ./scripts/check-examples.sh
+    check_examples=$?
+    if [ $check_examples -eq 0 ] && [ $check_workspace -eq 0 ]
+    then
+      echo "All checks have passed!"
+      exit 0
+    else
+      echo "Some checks have not passed!"
+      exit 1
+    fi
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