Use source branch as environment directory

.gitlab-ci.yml

@@ -41,10 +41,10 @@ DeployMR:
   variables:
     GIT_STRATEGY: none
   script:
-    - a -m synchronize -a "src=${PWD}/site/ dest=/var/www/docs/eca-mr/${CI_ENVIRONMENT_SLUG} delete=yes" --limit=bsdevop1
+    - a -m synchronize -a "src=${PWD}/site/ dest=/var/www/docs/eca-mr/${CI_MERGE_REQUEST_SOURCE_BRANCH_NAME} delete=yes" --limit=bsdevop1
   environment:
     name: review/$CI_COMMIT_REF_SLUG
-    url: https://ecaguide.org/MR/$CI_ENVIRONMENT_SLUG
+    url: https://ecaguide.org/MR/$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME
     on_stop: CleanupDeployMR
   cache: {}
   only:
@@ -57,7 +57,7 @@ CleanupDeployMR:
   variables:
     GIT_STRATEGY: none
   script:
-    - a -m file -a "path=/var/www/docs/eca-mr/${CI_ENVIRONMENT_SLUG} state=absent" --limit=bsdevop1
+    - a -m file -a "path=/var/www/docs/eca-mr/${CI_MERGE_REQUEST_SOURCE_BRANCH_NAME} state=absent" --limit=bsdevop1
   environment:
     name: review/$CI_COMMIT_REF_SLUG
     action: stop