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A command-line interface for preparing and outputting Cumulus Messages for Cumulus Tasks

Project description

# Cumulus Message Adapter

[![CircleCI](https://circleci.com/gh/cumulus-nasa/cumulus-message-adapter.svg?style=svg)](https://circleci.com/gh/cumulus-nasa/cumulus-message-adapter)

cumulus-message-adapter is a command-line interface for preparing and outputting Cumulus Messages for Cumulus Tasks. cumulus-message-adapter helps Cumulus developers integrate a task into a Cumulus Workflow.

Read more about how the cumulus-message-adapter works in the [CONTRACT.md](./CONTRACT.md).

## Releases

[CircleCI](https://circleci.com/gh/cumulus-nasa/cumulus-message-adapter) manages releases and release assets.

Whenever CircleCI passes on the master branch of cumulus-message-adapter and message_adapter/version.py has been updated with a version that doesn’t match an existing tag, CircleCI will:

  • Create a new tag with tag_name of the string in message_adapter/version.py

  • Create a new release using the new tag, with a name equal to tag_name (equal to version).

  • Build a cumulus-message-adapter.zip file and attach it as a release asset to the newly created release. The zip file is created using the [Makefile](./Makefile) in the root of this repository.

These steps are fully detailed in the [.circleci/config.yml](./.circleci/config.yml) file.

## Development

### Dependency Installation

$ pip install -r requirements-dev.txt $ pip install -r requirements.txt

### Running Tests

Running tests requires [localstack](https://github.com/localstack/localstack).

Tests only require localstack running S3, which can be initiated with the following command:

` $ SERVICES=s3 localstack start `

And then you can check tests pass with the following nosetests command:

` $ CUMULUS_ENV=testing nosetests -v -s `

### Linting

$ pylint message_adapter

### Contributing

If changes are made to the codebase, you can create the cumulus-message-adapter zip archive for testing libraries that require it:

`bash $ make clean $ make cumulus-message-adapter.zip `

Then you can run some integration tests:

`bash ./examples/example-node-message-adapter-lib.js `

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