Refactor: centralize the code to hash a raw file

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 93.45%. Comparing base (5a58ecb) to head (fd4c660).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1022 +/- ## ========================================== - Coverage 93.46% 93.45% -0.02% ========================================== Files 91 91 Lines 5737 5728 -9 Branches 1338 1333 -5 ========================================== - Hits 5362 5353 -9 Misses 356 356 Partials 19 19 ```

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:test_tube: Branch testing instructions

This pull request can be tested locally with the following command:

npm exec --yes -- "github:emmercm/igir#emmercm/refactor-hash-file" [commands..] [options]

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[github-actions[bot]]

:lock: Inactive pull request lock

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

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