Auto-update from backup job

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+# Descartes Underwriting
+
+## Context
+
+We wish to create a backup tool that will save only the last modified files of a storage unit.
+
+In our example, the storage unit is **not a bucket**.
+
+The storage unit is a git repository called `devops-technical-test-data`.
+
+The repository `devops-technical-test-data` is not frozen and will have new commits.
+
+Commits will be added to the `datestamp-test` branch on the `devops-technical-test-data` repository.
+
+## Task
+
+Develop a backup tool to save the modified files at each commit.
+
+### Submission
+
+Script and data should be saved on a private `descartes-backup-project` repository on your github account.
+
+Access should be granted to all members of the `descartes-underwriting` group:
+
+<https://github.com/orgs/descartes-underwriting/people>
+
+### Script
+
+Create a script to automate the backup process using open source software.
+
+The script should track the branch `datestamp-test` of the repository.
+
+The execution of the script should be carried with a github-action / gitlab-pipeline or any other git automated workflow.
+
+### Data
+
+The backup should store files in separate folders.
+
+The backup file structure should be based on the sha1 of the `devops-technical-test-data`.
+
+## File structure example
+
+For the following commits on the `devops-technical-test-data`:
+
+| SHA | OPERATION |
+|-----|-----------|
+| Commit_N | create readme.md |
+| Commit_N+1 | create doc.txt |
+| Commit_N+2 | create data/test/test.txt |
+| Commit_N+3 | append text to ./doc.txt |
+| Commit_N+4 | create test/project/project1.txt |
+
+The `candidate_backup_repository` should have
+
+```bash
+$ tree .
+.
+├── .gitworkflow
+│   └── workflows
+│       └── my-lovely-workflow.yml
+├── data
+│   ├── N
+│   │   └── readme.md
+│   ├── N+1
+│   │   └── doc.txt
+│   ├── N+2
+│   │   └── data
+│   │       └── test
+│   │           └── test.txt
+│   ├── N+3
+│   │   └── doc.txt
+│   └── N+4
+│       └── test
+│           └── project
+│               └── project1.txt
+└── script
+    └── my-beautiful-script.best-language
+```