Export files inside nested directories

[coder6583]

Description

• Export files inside nested directories when exporting assessments and courses
• Filters out the handin directory when exporting

Motivation and Context

• When the course had directories that had nested files, the files weren't showing up.

↑ A nested file in the course directory

↑ No file

How Has This Been Tested?

• Created an assessment with a writeup directory containing a pdf file
• Handed in a few files to the assessment to create files inside the handin directory
• Exported assessment and course with assessments

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• I have run rubocop and erblint for style check. If you haven't, run overcommit --install && overcommit --sign to use pre-commit hook for linting

Other issues / help required

Should I use Find.find over Dir[].each?

If unsure, feel free to submit first and we'll help you along.

[coderabbitai]

Walkthrough

Walkthrough

The recent update introduces a method to recursively load directories into a tar archive, enhancing the export functionality for both assessments and courses by allowing for more structured file organization with optional filtering. Additionally, database schema adjustments were made, including changes to column types and sizes, and the introduction of new columns while removing or altering defaults for others.

Changes

File Path	Change Summary
app/controllers/.../assessments_controller.rb	Refactored file export logic to use load_dir_to_tar with file selection filter.
app/models/assessment.rb	Added load_dir_to_tar method for recursive directory loading into tar with filtering.
app/models/course.rb	Refactored generate_tar to use load_dir_to_tar for directory loading with a filter.
db/schema.rb	Modified column types and sizes, reordered columns, added/removed columns, and adjusted limits.

Related issues

• Assessment export does not include subdirectories #2054: The issue discusses the lack of support for nested directories in assessment exports. The newly introduced load_dir_to_tar method addresses this by enabling recursive loading of directories, which could potentially resolve the issue's objectives by allowing for more complex file structures in exports.

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[KesterTan]

I think in this case, it should be fine to not use Find.find since you're already disabling handins

[KesterTan]

Looks good so far, but I think we can perhaps consider adding a toggle so that people can choose if they want to download handins or not.

[KesterTan]

LGTM