repository-scorer 0.3.0

A python package to compute a repository best engineering practices indicators

radon-repository-scorer

The radon-repository-scorer is a Python package to compute a repository best engineering practices indicators.

The module provides the following 8 indicators of well-engineered software projects:

• Core contributors: the number of contributors whose total number of commits accounts for 80% or more of the total contributions.
• Continuous integration (CI): the repository has evidence of a CI service, determined by the presence of a configuration file required by that service (e.g., a.travis.ymlfor TravisCI).
• Comments ratio: ratio between comments and lines of code.
• Commit frequency: the average number of commits per month.
• Issue frequency: the average number of issue events transpired per month.
• License availability: the repository has evidence of a license (i.e., a LICENSE file).
• Lines of Code: the number of executable lines of code.
• Ratio of IaC scripts: ratio between Infrastructure-as-Code (IaC) files and total files.

All the previous indicators but the last are described in depth in:

@inproceedings{@article{munaiah2017curating,
  title={Curating GitHub for engineered software projects},
  author={Munaiah, Nuthan and Kroh, Steven and Cabrey, Craig and Nagappan, Meiyappan},
  journal={Empirical Software Engineering},
  volume={22},
  number={6},
  pages={3219--3253},
  year={2017},
  publisher={Springer}
}

Note: the tool is intended to be used as a Python library. Therefore, the current version does not provide a command line interface.

How to install

From the Python Package Index

pip install repository-scorer

From source code

pip install -r requirements
pip install .

How to use

from reposcorer.scorer import score_repository

report = score_repository(path_to_repo='path/to/cloned/repo',
                          full_name_or_id='repo_owner/repo_name',  # e.g., radon-h2020/radon-repository-scorer
                          host='github')  # or gitlab

Output

{
  'has_ci': <bool>,
  'comments_ratio': <float in [0,1]>,
  'commit_frequency': <float>,
  'core_contributors': <int>,
  'iac_ratio': <float in [0,1]>,
  'issue_frequency': <float>,
  'has_license': <bool>,
  'repository_size': <int>
}

How to build the Docker image

docker build -t repo-scorer:latest .

How to pull from Dockerhub

docker pull radonconsortium/repo-scorer:latest

How to use Docker image

docker run repo-scorer:latest <host> <repo full name> <clone to>

Example

docker run repo-scorer:latest github UoW-CPC/COLARepo /tmp/

Output:

{"has_ci": false, "percent_comment": 0.0389, "commit_frequency": 4.56, "core_contributors": 3, "iac_ratio": 0.96, "issue_frequency": 0.0, "has_license": false, "repository_size": 2224}

See CHANGELOG for logs detail about releases.