Komodo

Komodo is a software distribution system.

The purpose of Komodo is to automatically, reproducibly, and testably create a software distribution. Automatic deploy of new releases, as well as nightly deploy and the option of automatically moving the testing stage, is supported.

Install

The tool is not hosted on PyPI but can be installed with pip directly from GitHub:

pip install git+https://github.com/equinor/komodo.git

Documentation

The documentation is online. Developers can build it by installing dev-requirements.txt and running make html in the docs directory.

Basic usage

We have a 'repository' of packages described in a YAML file. Each package contains a list of one or more versions. Each version contains:

• Build information.
• Maintainer.
• Source, e.g. PyPI or a GitHub repository, if required.
• Dependency list, if any.
• Other metadata, depending on the type of package.

For example, we may have a repository.yml like this:

python:
  3-builtin:
    make: sh
    makefile: build__python-virtualenv.sh
    maintainer: [email protected]
    makeopts: --virtualenv-interpreter python3

treelib:
  1.6.1:
    source: pypi
    make: pip
    maintainer: [email protected]
    depends:
      - python

Note that build__python-virtualenv.sh is a script that comes with komodo (in komodo/data); it will use the system Python in the environment it builds.

Now a 'release', e.g. stable, is defined in another YAML file, e.g. stable.yml, containing some or all of the packages in the repository file:

python: 3-builtin
treelib: 1.6.1

A full software distribution can then be built and deployed to a specified path, e.g. ./builds/stable-0.0.1, with the following command:

kmd stable.yml repository.yml --prefix builds --release stable-0.0.1

To use this environment, type source builds/stable-0.0.1/enable.

Other komodo commands

As well as the kmd command, this package installs several other commands, each with its own options:

• komodo-check-pypi — Checks if pypi packages are up to date
• komodo-insert-proposals — Copy proposals into release and create PR
• komodo-post-messages — Post messages to a release
• komodo-check-symlinks — Verify symlinks for komodo versions are according to a given config
• komodo-lint — Lint komodo setup
• komodo-reverse-deps — Extracts dependencies from a given set of packages
• komodo-clean-repository — Clean up unused versions in the repository file based on a set of releases
• komodo-lint-maturity — Lint the maturity of packages
• komodo-snyk-test — Test a release for security and license issues
• komodo-create-symlinks — Create symlinks for komodo versions
• komodo-lint-package-status — Lint the package status file
• komodo-suggest-symlinks — Returns a pull request if the symlink configuration could be updated
• komodo-extract-dep-graph — Extracts dependencies from a given set of packages
• komodo-non-deployed — Outputs the name of undeployed matrices given an installation root and a release folder
• komodo-transpiler — Build release files
• komodo-show-version — Return the version of a specified package in the active release

Run tests

In a virtual environment:

git clone https://github.com/equinor/komodo.git
cd komodo
pip install .
pip install -r dev-requirements.txt
pytest tests