ci: add staging and production environments

Closes #58

.gitlab-ci.yml

@@ -36,8 +36,7 @@ setup:
 build:
   stage: build
   script:
-    - npm install
-    - npm run build
+    - npm run build:prod
   artifacts:
     paths:
       - www
@@ -84,7 +83,6 @@ pages:
 review:
   stage: deploy
   script:
-    - npm run build:prod
     - ./node_modules/.bin/surge -p ./www -d https://$CI_PROJECT_PATH_SLUG-$CI_ENVIRONMENT_SLUG.surge.sh/
   environment:
     name: review/$CI_PROJECT_PATH_SLUG-$CI_COMMIT_REF_NAME
@@ -105,3 +103,27 @@ stop_review:
     action: stop
   tags:
     - secrecy
+
+staging:
+  stage: deploy
+  script:
+    - ./node_modules/.bin/surge -p ./www -d https://$CI_PROJECT_PATH_SLUG-staging.surge.sh/
+  environment:
+    name: staging
+    url: https://$CI_PROJECT_PATH_SLUG-staging.surge.sh/
+  only:
+  - develop
+  tags:
+    - secrecy
+
+production_demo:
+  stage: deploy
+  script:
+    - ./node_modules/.bin/surge -p ./www -d https://$CI_PROJECT_PATH_SLUG.surge.sh/
+  environment:
+    name: production
+    url: https://$CI_PROJECT_PATH_SLUG.surge.sh/
+  only:
+  - master
+  tags:
+    - secrecy