CPTA

TA Kit for Computer Programming.

Features

• Compile and Run code in sandbox
  • Network isolation (no internet access)
  • Limit CPU usage (1 core)
  • Limit memory usage (1GB)
  • Limit disk usage (/tmp and /workspace)
  • Read-only root filesystem, write to /tmp and /workspace only
• Mount files into workspace
  • Mount files before build
  • Mount files before execution
• Flexible file-based case system
  • Config exec.js to execute target
  • Define spec.js to evaluate result
• Generate report from results
  • Generate spreadsheet report with students.csv

File Structure

.
├── .works
|   └── <student-id>
|       ├── 0-raw
|       ├── 1-build
|       ├── 2-output
|       └── 3-result
├-- .build
|   └── mount
|       └ ... (files to be mounted before build)
└── .cases
    └── <case-name>
        ├── mount
        |   └ ... (files to be mounted before execution)
        ├── exec.js
        └── spec.js
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Usage

Create workspace from Moodle archive

cpta from-moodle <moodle-archive> --output [output-dir]
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output-dir defaults to ./.works.

Build all workspaces

cpta make --workspace [workspaces-dir]
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workspaces-dir defaults to ./.works.

Execute all targets in workspaces

cpta exec --workspace [workspaces-dir] --case [cases-dir]
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workspaces-dir defaults to ./.works. cases-dir defaults to ./.cases.

Evaluate all targets in workspaces

cpta eval --workspace [workspaces-dir] --case [cases-dir]
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workspaces-dir defaults to ./.works. cases-dir defaults to ./.cases.

Make report from workspaces

cpta report
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Dive into workspaces in container

cpta dive
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