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Compiled python generated from the Cloud Foundry Dropsonde Protobuf definition files

Project description

# Cloud Foundry Dropsonde Protocol for Python

Compiled python generated from the Cloud Foundry Dropsonde Protobuf definition files.

The [Dropsonde Protocol](https://github.com/cloudfoundry/dropsonde-protocol) is defined here, and this repo provides “protoc” compiled Python and Python3 modules.

## Example

The Standard protobuf files are referenced as follows.

`python from dropsonde.pb import envelope_pb2 from dropsonde.pb import error_pb2 from dropsonde.pb import http_pb2 from dropsonde.pb import log_pb2 from dropsonde.pb import metric_pb2 from dropsonde.pb import uuid_pb2 `

The UUID protobuf type is rather cryptic, so a utility function is included for parsing the type into a UUID formatted string.

`python >>> from dropsonde.util import get_uuid_string >>> application_guid = { ...   'low': '12413561682238894606', ...   'high': '3611542221973970511' ... } >>> application_guid = get_uuid_string(**application_guid) >>> print(application_guid) 0ef23f83-94d4-45ac-e455-014268ec2103 >>> `

## Development

The Makefile provides all core development tasks.

### Install environment

make install

This will

1. clone the Dropsonde protobuf repo 1. install dependencies for python2 1. install dependencies for python3

### Refactor and compile the protobuf files

make compile

This will

1. create a copy of the protobuf source files 1. refactor the “import” directives in the source files to match the required python package structure 1. run “protoc” on the refactored source files and output the generated Python code into the “dropsonde.pb” python package tree.

### Test

make test

This will

1. run the tests to ensure that imports work 1. ensure that the UUID conversion tool works

### Clean

make clean

This will

1. remove all the refactored protobuf files 1. remove the virtualenv environments for python2 and python3

### Package

make package

This will only package the compiled python files using setup.py

### Build

make build

This will

1. run the “clone” task 1. run the “compile” task 1. run the “test” task 1. run the “package” task

### Deploy

make deploy

This will

1. run the “clean” task 1. run the “clone” task 1. run the “compile” task 1. run the “test” task 1. run the python setup.py sdist upload to deploy to PyPI.

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