Difference between revisions of "SatNOGS Client Development"

Revision as of 02:05, 17 March 2020

Intro

This page describes the setup of a development environment for the SatNOGS ground station reference setup based on satnogs-client-ansible. It is assumed you have already setup your ground station as explained in SatNOGS_Client_Setup.

satnogs-flowgraphs

For each Satellite Transmitter Mode there is a specific flowgraph in this package. There are generic (e.g. CW) and satellite-specific flowgraphs. The Satellite-Transmitter-Mode-to-flowgraph mapping is defined in satnogs-client. This package is using gr-soapy for SDR hardware support and gr-satnogs for required GNURadio blocks.

gr-satnogs

The gnuradio Out-Of-Tree module gr-satnogs provides blocks required by satnogs-flowgraphs. The gitlab-CI automatically builds the package in docker containers, configured by the .gitlab-ci.yml. The built packages for releases are pushed to the librespace:satnogs package repository, the built package for the latest development version on master is pushed to the librespace:satnogs-unstable package repository.

To use a modified gr-satnogs module on a SatNOGS ground station, it’s recommended to clone your fork on your station, build the patched gr-satnogs packages and install it.

To install the latest development version of gr-satnogs on your station, set experimental=True or configure in satnogs-setup.

Steps setting up a gr-satnogs dev env

Fork gr-satnogs
Fork gr-satnogs-package
Adjust the repository url of gr-satnogs in gr-satnogs-package/debian/debian/rules#L22
Adjust the repository url in the version detection in gr-satnogs-package/.gitlab-ci.yml#L13 ,#L30 ,#L47
Wait for the gitlab-CI to build your first version of gr-satnogs-package (~45 min)
Install your freshly built gr-satnogs-package by pointing the SATNOGS_RADIO_GR_SATNOGS_PACKAGE in satnogs-setup to the built artifact/debian package of your architecture (e.g. armhf, amd64). The build artifacts are available in your gr-satnogs-package fork by clicking CI/CD, selecting there the latest pipeline, the latest build-job and then in the right column Browse, path build/debian/output/$your_arch/gr-satnogs_$your_arch.deb

satnogs-client

The satnogs-client is a python package, and gets installed by satnogs-setup in a python virtual environment using pip. The development is done in the master branch.

Please note that satnogs-client and satnogs-flowgraphs must be installed in compatible versions, due to (frequent) changes in the arguments available in the demodulation scripts, see Compatibility.

Steps.

Fork satnogs-client
Clone the repository on your development machine
Create a new branch (e.g. station123) with your changes & push it
Run satnogs-setup and change the value of SATNOGS_CLIENT_URL to point to your repository and branch as described in SatNOGS_Client_Setup#Advanced_Setup
Hit "Apply" in satnogs-setup to finally install your satnogs-client version
Profit.

@@ Line 5: / Line 5: @@
 It is assumed you have already setup your ground station as explained in [[SatNOGS_Client_Setup]].
-==gr-satnogs and gr-satnogs-package==
+== satnogs-flowgraphs ==
+For each Satellite Transmitter Mode there is a specific flowgraph in this package. There are generic (e.g. CW) and satellite-specific flowgraphs. The Satellite-Transmitter-Mode-to-flowgraph mapping is defined in satnogs-client. This package is using gr-soapy for SDR hardware support and gr-satnogs for required GNURadio blocks.
+<br />
+==gr-satnogs==
-The gnuradio Out-Of-Tree module [https://gitlab.com/librespacefoundation/satnogs/gr-satnogs gr-satnogs] is packaged by [https://gitlab.com/librespacefoundation/satnogs/gr-satnogs-package gr-satnogs-package]. The gitlab-CI automatically builds the package in docker containers as nightlies and on each release (git-tag, e.g. [https://gitlab.com/librespacefoundation/satnogs/gr-satnogs-package/-/jobs/artifacts/1.3-1/raw/build/debian/output/armhf/gr-satnogs_1.3-1_armhf.deb?job=release-armhf gr-satnogs_1.3-1_armhf.deb]), configured by the [https://gitlab.com/librespacefoundation/satnogs/gr-satnogs/blob/master/.gitlab-ci.yml .gitlab-ci.yml].
+The gnuradio Out-Of-Tree module [https://gitlab.com/librespacefoundation/satnogs/gr-satnogs gr-satnogs] provides blocks required by satnogs-flowgraphs. The gitlab-CI automatically builds the package in docker containers, configured by the [https://gitlab.com/librespacefoundation/satnogs/gr-satnogs/blob/master/.gitlab-ci.yml .gitlab-ci.yml]. The built packages for releases are pushed to the librespace:satnogs package repository, the built package for the latest development version on master is pushed to the librespace:satnogs-unstable package repository.
-To use a modified gr-satnogs module on a SatNOGS ground station, it’s recommended to build it using the gr-satnogs-package scripts. Otherwise you can build gr-satnogs manually and adjust the installation paths to match the paths specified by gr-satnogs-package.
+To use a modified gr-satnogs module on a SatNOGS ground station, it’s recommended to clone your fork on your station, build the patched gr-satnogs packages and install it.
-Building gr-satnogs with gr-satnogs-package can be automated via gitlab-CI, so that binary releases of your modified gr-satnogs module are available to download and install by the satnogs-client-ansible scripts (<code>satnogs-setup</code>).
+To install the latest development version of gr-satnogs on your station, set <code>experimental=True</code> or configure  in <code>satnogs-setup</code>.
-===Steps.===
+<br />
+===Steps setting up a gr-satnogs dev env===
 *Fork gr-satnogs
@@ Line 23: / Line 28: @@
 ==satnogs-client==
-The [https://gitlab.com/librespacefoundation/satnogs/satnogs-client satnogs-client] is a python package, and gets installed by satnogs-setup in a python virtual environment using [https://pip.pypa.io/ pip]. The development branch currently is <code>master</code> and if there is a need commits should be ported on branch <code>0</code>.
+The [https://gitlab.com/librespacefoundation/satnogs/satnogs-client satnogs-client] is a python package, and gets installed by satnogs-setup in a python virtual environment using [https://pip.pypa.io/ pip]. The development is done in the  <code>master</code> branch.
-Branch <code>0</code> It's the original client implementation and features a local web interface. A new implementation which aimed at a more modular architecture and doesn't include the local web interface anymore is developed in the <code>master</code> branch.
-Please note that satnogs-client and gr-satnogs must be installed in compatible versions, due to (frequent) changes in the arguments available in the demodulation scripts, see [[Compatibility]].
+Please note that satnogs-client and satnogs-flowgraphs must be installed in compatible versions, due to (frequent) changes in the arguments available in the demodulation scripts, see [[Compatibility]].
 ===Steps.===
-TODO.
-# Fork [https://gitlab.com/librespacefoundation/satnogs/satnogs-client satnogs-client]
+#Fork [https://gitlab.com/librespacefoundation/satnogs/satnogs-client satnogs-client]
-# Clone the repository on your development desktop
+#Clone the repository on your development machine
-# Create a new branch (e.g. <code>pr/myfancypatch</code>) with your changes & push it
+#Create a new branch (e.g. station123) with your changes & push it
-# Run satnogs-setup and change the value of SATNOGS_CLIENT_URL to point to your repository as described in [[SatNOGS_Client_Setup#Advanced_Setup]]
+#Run satnogs-setup and change the value of <code>SATNOGS_CLIENT_URL</code> to point to your repository and branch as described in [[SatNOGS_Client_Setup#Advanced_Setup]]
-# Hit "Apply" in satnogs-setup to finally install your satnogs-client version
+#Hit "Apply" in satnogs-setup to finally install your satnogs-client version
-# Profit.
+#Profit.
 <br />
 [[Category:Develop]]
 [[Category:Software]]