Update .gitlab-ci.yml

.gitlab-ci.yml

-# This file is a template, and might need editing before it works on your project.
-# To contribute improvements to CI/CD templates, please follow the Development guide at:
-# https://docs.gitlab.com/ee/development/cicd/templates.html
-# This specific template is located at:
-# https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Getting-Started.gitlab-ci.yml
-
-# This is a sample GitLab CI/CD configuration file that should run without any modifications.
-# It demonstrates a basic 3 stage CI/CD pipeline. Instead of real tests or scripts,
-# it uses echo commands to simulate the pipeline execution.
-#
-# A pipeline is composed of independent jobs that run scripts, grouped into stages.
-# Stages run in sequential order, but jobs within stages run in parallel.
-#
-# For more information, see: https://docs.gitlab.com/ee/ci/yaml/index.html#stages
-
 stages:          # List of stages for jobs, and their order of execution
   - build
   - test
   - deploy
 
+cache: &global_cache
+  key: $CI_COMMIT_REF_SLUG
+  paths:
+    - bin
+  policy: pull-push
+
 build-job:       # This job runs in the build stage, which runs first.
   stage: build
   script:
     - echo "Compiling the code..."
     - echo "Compile complete."
+    - mkdir bin
+    - cp /usr/bin/rev bin
 
 unit-test-job:   # This job runs in the test stage.
   stage: test    # It only starts when the job in the build stage completes successfully.
+  cache:
+    # inherit all global cache settings
+    <<: *global_cache
+    # override the policy
+    policy: pull
   script:
-    - echo "Running unit tests... This will take about 60 seconds."
-    - sleep 60
-    - echo "Code coverage is 90%"
+    - echo "Running unit tests... This will take about 60 seconds." | bin/rev
 
 lint-test-job:   # This job also runs in the test stage.
   stage: test    # It can run at the same time as unit-test-job (in parallel).
+  cache:
+    # inherit all global cache settings
+    <<: *global_cache
+    # override the policy
+    policy: pull
   script:
-    - echo "Linting code... This will take about 10 seconds."
-    - sleep 10
-    - echo "No lint issues found."
+    - echo "Linting code... This will take about 10 seconds." | bin/rev
 
 deploy-job:      # This job runs in the deploy stage.
   stage: deploy  # It only runs when *both* jobs in the test stage complete successfully.
+  cache:
+    # inherit all global cache settings
+    <<: *global_cache
+    # override the policy
+    policy: pull
   script:
     - echo "Deploying application..."
-    - echo "Application successfully deployed."
+    - echo "Application successfully deployed." | bin/rev