Allow code quality jobs to retry

.gitlab-ci.yml

@@ -3,17 +3,17 @@ stages:
   - build
   - deploy
 
-
 # Cache modules in between jobs
 cache:
   key: ${CI_COMMIT_REF_SLUG}
   paths:
-  - node_modules/
+    - node_modules/
 
 pylint:
   stage: analysis
   image: python:3.7
   allow_failure: false
+  retry: 3
 
   before_script:
     - curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python
@@ -34,6 +34,7 @@ black:
   stage: analysis
   image: python:3.7
   allow_failure: true
+  retry: 3
 
   before_script:
     - curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python
@@ -80,31 +81,30 @@ build:
     - tags
     - web
 
-
 # Deploy to builds.openflexure.org
 deploy:
   stage: deploy
   dependencies:
     - build
   image: ubuntu:latest
-  
+
   before_script:
-    - 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
+    - "which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )"
     - eval $(ssh-agent -s)
     - ssh-add <(echo "$SSH_PRIVATE_KEY_BATH_OPENFLEXURE_BASE64" | base64 --decode)
     - mkdir -p ~/.ssh
     - echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config
-    
+
   script:
     # Install rsync if not already installed
-    - 'which rsync || ( apt-get update -y && apt-get install rsync -y )'
+    - "which rsync || ( apt-get update -y && apt-get install rsync -y )"
-    
+
-    # Upload the builds folder to openflexure-microscope builds 
+    # Upload the builds folder to openflexure-microscope builds
     - rsync -hrvz -e ssh dist/ ci-user@openflexure.bath.ac.uk:/var/www/build/openflexure-microscope-server
-    
+
     # Run update-latest.py on the build server
     - ssh -t ci-user@openflexure.bath.ac.uk "/var/www/build/update-latest.py"
-    
+
   only:
     - tags
     - web