DagShell
A virtual POSIX-compliant filesystem implementation with content-addressable DAG structure.
Quick Start
# Install the package
pip install -e .
# Start the terminal emulator
python -m dagshell.terminal
# Or use the Python API directly
python
>>> from dagshell.dagshell_fluent import DagShell
>>> shell = DagShell()
>>> shell.mkdir("/project").cd("/project")
>>> shell.echo("Hello, DagShell!").out("README.md")
>>> shell.save("my_project.json")
Features
- Content-Addressable Filesystem: SHA256-based deduplication
- Virtual POSIX Environment: Complete filesystem in JSON
- Multiple Interfaces: Python API, Scheme DSL, Terminal emulator
- Persistence: Save/load filesystem state as JSON
- Virtual Devices: /dev/null, /dev/random, /dev/zero
- Directory Navigation: cd, pushd, popd, dirs
- Import/Export: Transfer files between real and virtual filesystems
- Command History: Track and recall previous commands
- Comprehensive Testing: 583 tests with 77% code coverage
Development
# Run tests
python -m pytest tests/ -v
# Run with coverage
python -m pytest tests/ --cov=dagshell --cov-report=term
License
MIT
1 maintainer
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