contrib 0.2.1

A python package for making stacked area plots of contributions over time.

Contrib

A python package for making stacked area plots of contributions to a git repository over time. Plots can show contributions by authors, or by organizations.

Installation

contrib is on PyPI, so you can just pip install it:

$ pip install contrib

Alternately, you can clone this project, add its directory to your PYTHONPATH, and add the bin directory to your PATH.

Usage

To use contrib, you'll need to create a configuration file telling it where to find your code. Below is an example for Spack; you can find complete code in the spack-contributions repo.

contrib:
  # Path to your git repository. to run git blame on.
  # Consider making this a git submodule.
  repo:   ./spack

  # JSON file mapping authors to organizations (optional)
  orgmap: ./author-to-org.json

  # Separate parts of the repository to process (optional).  For each
  # commit, Spack looks for files that match the patterns in each part.
  # For a simple repo, you may only need one regular expression per part.
  # In Spack, the packages have moved around in the repo over time so we
  # provide multiple patterns.
  parts:
    packages:
      - ^var/spack/repos/builtin/packages/.*\.py$
      - ^var/spack/packages/.*\.py$
      - ^lib/spack/spack/packages/.*\.py$

The repo needs to be in your local filesystem.

Mapping authors to organizations

author-to-org.json is optional. If you choose to provide it, it should be simple json dictionary mapping authors to organizations:

{
  "Author 1": "UIUC",
  "Author 2": "LBL",
  ...
  "Author N": "LLNL"
}

You can run contrib --update-org-map to look at your repository's history and generate this file automatically.

Running

Once you've got all of that set up, you can run contrib in the directory where contrib.yaml lives:

$ ls
author-to-org.json  contrib.yaml
$ contrib
==> Indexing 49 commits.

STARTED       0/49 53ab298e88f80454f7f7c20ef200a3dbd0870473
    packages: processed 45/3487 blames (9.04/s)
...

By default, contrib will sample 50 commits from your repository and plot them. If you want it to plot fewer samples, you can run contrib --samples SAMPLES where SAMPLES is a number of your choosing. contrib tries to use the available processors on the machine it is run, and by default it will run parallel git blame jobs. You can control the parallelism with the --jobs JOBS argument.

contrib has to run git blame for each sampled commit and for each file in the parts section of your contrib.yaml file (or for all files if parts is not provided), so it can take a long time to run if your repo's history is long. contrib's output shows how many git blame calls remain and how fast blames are currently completing.

Cached data

contrib caches results of git blame in a directory called line-data. For large repositories, this can get to be quite large, so make sure you have a decent amount of space available (gigabytes for large repositories).

License

Contrib is part of the Spack project. Spack is distributed under the terms of both the MIT license and the Apache License (Version 2.0). Users may choose either license, at their option.

All new contributions must be made under both the MIT and Apache-2.0 licenses.

See LICENSE-MIT, LICENSE-APACHE, COPYRIGHT, and NOTICE for details.

SPDX-License-Identifier: (Apache-2.0 OR MIT)

LLNL-CODE-647188