ogn-python/README.md

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# ogn-python
[![Build Status](https://travis-ci.org/glidernet/ogn-python.svg?branch=master)]
(https://travis-ci.org/glidernet/ogn-python)
[![Coverage Status](https://img.shields.io/coveralls/glidernet/ogn-python.svg)]
(https://coveralls.io/r/glidernet/ogn-python)
A python module for the [Open Glider Network](http://wiki.glidernet.org/).
The submodule 'ogn.gateway' is an aprs client, saving all received beacons
into a database with [SQLAlchemy](http://www.sqlalchemy.org/).
Other submodules process this data.
To schedule tasks like fetching ddb data,
[Celery](http://www.celeryproject.org/) with [Redis](http://www.redis.io/) is used.
## Installation and Setup
1. Install python requirements
```
pip install -r requirements.txt
```
2. Install redis for asynchronous tasks ('ogn.collect.\*')
```
$ apt-get install redis-server
```
3. Create database
```
$ ./manage.py db.init
$ alembic stamp head
```
## Running the aprs client and task server
This scripts run in the foreground and should be deamonized
(eg. use [supervisord](http://supervisord.org/)).
```
# start aprs client
$ ./manage.py gateway.run
# start task server (make sure redis is up and running)
$ celery -A ogn.collect worker -l info
```
## manage.py - CLI options
```
usage: manage.py [<namespace>.]<command> [<args>]
positional arguments:
command the command to run
optional arguments:
-h, --help show this help message and exit
available commands:
[db]
init Initialize the database.
update_ddb_file Update devices with data from local file.
update_ddb_ogn Update devices with data from ogn.
[gateway]
run Run the aprs client.
[logbook]
compute Compute takeoffs and landings.
show Show a logbook for <airport_name> located at given position.
[show.receiver]
hardware_stats Show some statistics of receiver hardware.
list_all Show a list of all receivers.
software_stats Show some statistics of receiver software.
```
The task server must be running for `db.updateddb`.
## TODO
- [x] Write celery backend and add task 'fetchddb'
- [x] Rewrite manage.py with <https://github.com/Birdback/manage.py> or flask-script
- [x] Rename existing cli commands
- [x] Document/Improve cli commands
- [ ] Separate settings from module (currently at ogn/command/dbutils.py)
- [ ] Enable granular data acquisition (eg. store receiver beacons only)
- [x] Future Database-Migrations: Use Alembic?
- [x] Rename 'Flarm' to 'Device'?
- [x] Rename self.heared\_aircraft\_IDs (lowercase) in aircraft\_beacon
- [x] Rename self.heared\_aircraft\_IDs
- [x] Fix command/logbook.py (@Meisterschueler?)
- [ ] Introduce scheduled tasks with 'celery beat' (eg. updateddb)
### Scheduled tasks
- ogn.collect.fetchddb (generate Flarm table)
- ogn.collect.receiver (generate Receiver table)
- ogn.collect.logbook (generate TakeoffLanding table)
## How to use virtualenv
```
$ sudo apt-get install python-virtualenv
$ virtualenv env
$ source env/bin/activate