Contributing


I found a bug

Please check first whether the bug has been noticed in Issues or Pull requests.

If not, please open a new issue with label bug. We do not enforce an issue template for now, but we recommend a bug issue to include a description of the bug, configurations of your Python environment, and code that may reproduce the bug.

If you already know how the problem could be fixed, you are more than welcomed to open a pull request with label bug and fix it. Again, we do not enforce a PR template for now, but we recommend you to follow best practice. A unit test is required to cover the found bug. Rules on merging a PR is in My pull request is ready.

I want to develop a new detector/transformer/aggregator

Adding a new detector/transformer/aggregator is usually a task requiring a significant time commitment. Therefore, we want to discuss with you about the necessity of the proposed new component first. Please open a new issue with label enhancement. Please do NOT open a PR until the plan of implementation is discussed thoroughly.

I have a question/suggestion

Please open a new issue. For questions, please use label question. For suggestions, please use label enhancement.

Formatter and linter

Black v19.3b0 is the required formatter of ADTK. You may install it along with ADTK using extra dev.

$ pip install adtk[dev]

We required 79 characters as maximal line length in ADTK, which is different to the default value in Black. Please make sure to set it up using Black option --line-length.

We recommend Pylint and/or flask8 as the Python linter.

Unit test

pytest is the required unit test framework of ADTK. Unit test coverage is checked by Coverage.py and pytest plugin pytest-cov. We use tox to automate tests in different Python environments.

You may install all these dependencies along with ADTK using extra test.

$ pip install adtk[test]

Documentation

The documentation is generated with Sphinx. You may install all necessary packages for compiling documentation along with ADTK using extra doc.

$ pip install adtk[doc]

My pull request is ready

Here are some general guides about pull requests:

  • Before your pull request is ready for review, please keep a WIP label.

  • Your pull request must be reviewed by at least one reviewer AND pass all test before it can be merged.

  • Remember to create unit tests for anything you added/modified.

  • Select the base branch to merge to (for more information about the definition of branches, please see How are branches and releases managed?):

    • If your pull request does not change the API, please select branch master.
    • If your pull request changes the API, please select branch develop.
  • Only repository administrator can merge into branches master and develop. Squash and merge is always required.

  • Don’t worry about updating version number and changelog. The administrator who merges your pull request will take care of them before merging.

How are branches and releases managed?

This is a guideline of managing branches and releases of ADTK.

  • The versioning of ADTK follows SemVer.

  • ADTK is in major version zero currently (0.Y.Z), which indicates that the public API is unstable.

  • ADTK only supports one stable version. If the most recent release is 0.Y.Z, the previous versions (0.y.z | y < Y) are NOT supported.

  • Release versions
    • An increment of minor version Y (0.[Y+1].Z) introduces modifications that change the API, for example adding new features to existing models, adding new models, etc.
    • An increment of patch version Z (0.Y.[Z+1]) introduces modifications that do not change the API, for example bug fix, minor changes to documentation, etc.
    • A new version is released when a set of modifications are accumulated, depending on the importance of the new functionalities and urgency of the bug fix.
    • A release is published to PyPI and GitHub.
    • The stable documentation corresponds to the most recent release.
  • Pre-release versions
    • Every time a pull request is merged into branch master or develop, a new pre-release version is defined.

    • A pull request that changes the public API is versioned as (0.[Y+1].0-dev.N+pr.M), where N is a monotonic increasing index and M is the index of the pull request.

      Example

      Assume the latest release is version 0.1.2. A new parameter is added to an existing function in pull request #37. The new functionality will eventually be included in release version 0.2.0. Merging this pull request to the branch develop is versioned as 0.2.0-dev.1+pr.37.

      Assume a new function is then created in pull request #39. The function is also expected to be released in version 0.2.0. Merging this pull request to the branch develop is versioned as 0.2.0-dev.2+pr.39.

    • A pull request that does not change the API is versioned as (0.Y.[Z+1]-dev.N+pr.M), where N is a monotonic increasing index and M is the index of the pull request.

      Example

      Assume the latest release is version 0.1.2. A bug is fixed in pull request #38. The new functionality will eventually be included in release version 0.1.3. Merging this pull request to the branch master is versioned as 0.1.3-dev.1+pr.38.

      Assume a typo in documentation is then fixed in pull request #41. The function is also expected to be released in version 0.1.3. Merging this pull request to the branch master is versioned as 0.1.3-dev.2+pr.41.

      Attention

      If the modification should also be included in the next “major” release (0.[Y+1].0), a separate pull request to merge the modifications into branch develop should be opened.

    • The latest documentation corresponds to the most recent pre-release in branch develop.