Fix : GitLab CI rules to fetch or clone

 In GitLab CI/CD, you can define rules to determine when a job should run. If you want to fetch or clone a Git repository during your CI/CD pipeline, you typically do so in a "before_script" section that is shared by multiple jobs. However, you can use rules to control when these steps should be executed. Here's an example of how you might define such rules:


```yaml

stages:

  - build


variables:

  GIT_STRATEGY: clone # This ensures GitLab will always clone the repository


before_script:

  - echo "This is a shared script to be run before every job."


job1:

  stage: build

  script:

    - echo "Job 1"

  rules:

    - changes: # Run this job if there are changes in specified paths

      - path/to/code/*


job2:

  stage: build

  script:

    - echo "Job 2"

  rules:

    - changes: # Run this job if there are changes in specified paths

      - another/path/*


job3:

  stage: build

  script:

    - echo "Job 3"

  rules:

    - changes: [] # Run this job unconditionally

```


In the example above:


- `before_script` is used to define shared commands that run before each job.

- `GIT_STRATEGY: clone` ensures that the Git repository is cloned before any job.

- The `rules` section in each job specifies when that job should run. You can use conditions like `changes` to trigger a job when specific paths in your repository have changed. You can also define other conditions based on variables, refs, and more.


This configuration allows you to control when jobs should run based on your repository's content, ensuring efficient usage of CI/CD resources. Make sure to adapt the paths and conditions to suit your specific needs.

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