doc: Write page for package maintainers.

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Packaging Polybar
=================
Do you want to package polybar for a distro? Great! Read this page to get
started.
First Steps
-----------
Before you get started, have a look at the `Packaging Label
<https://github.com/polybar/polybar/issues?q=label%3APackaging>`_ on our GitHub
repo and `Repology <https://repology.org/project/polybar/versions>`_ to see if
polybar is already packaged for that distro or if there are efforts to do so.
Even if a package already exists, it might still make sense for you to package
polybar in some cases. Some of these cases are:
- The existing package is out-of-date and the packager is no longer able/willing
to continue maintaining the package (or they are simply not reachable
anymore).
- The existing package exist in some non-official repository and you are able to
introduce the package into the official package repository for the
distro/package manager. For example if there is a PPA providing polybar for
Ubuntu and you can add polybar to the official Ubuntu repositories, please do
:)
The list above is not exhaustive, if you are unsure, feel free to ask in a new
GitHub issue or on `Gitter <http://gitter.im/polybar>`_. Please also ask if you
run into any polybar related issues while packaging.
Packaging
---------
If you haven't already, carefully read the `Compiling
<https://github.com/polybar/polybar/wiki/Compiling>`_ wiki page to make sure you
fully understand all the dependencies involved and how to build polybar
manually.
We can't really tell you how to create a package for your distro, you need to
figure that out yourself. But we can give you some guidance on building polybar
for a package
Gathering the Source Code
^^^^^^^^^^^^^^^^^^^^^^^^^
Unless you are creating a package that tracks the ``master`` branch, don't clone
the git repository. We provide a tarball with all the required source code on
our `Release Page <https://github.com/polybar/polybar/releases>`_, use that in
your build.
Configuring and Compiling
^^^^^^^^^^^^^^^^^^^^^^^^^
.. note::
Do not use the ``build.sh`` script for building polybar for your package. The
usage and flags of the script may change without notice and we don't consider
that a breaking change.
You can mostly follow the instructions on the `wiki
<https://github.com/polybar/polybar/wiki/Compiling#compiling>`_ for how to
compile polybar, but there are some additional ``cmake`` arguments you might
want to use:
- ``-DCMAKE_BUILD_TYPE=Release``: As of writing this is already the default, but
use it just to be on the safe side.
- ``-DCMAKE_INSTALL_PREFIX=/usr``: Without this all the polybar files will be
installed under ``/usr/local``. However, for packages it is often recommended
they directly install to ``/usr``. So this flag will install polybar to
``/usr/bin/polybar`` instead of ``/usr/local/bin/polybar``. The packaging
guidelines for your distro may disagree with this, in that case be sure to
follow your distro's guidelines.
Instead of ``sudo make install``, you will most likely want to use
``DESTDIR=<dir> make install``. That way the files will be installed into
``<dir>`` instead of your filesystem root.
Finishing Up
------------
Finally, subscribe to our `GitHub thread for package maintainers
<https://github.com/polybar/polybar/issues/1971>`_ to get notified about new
releases and changes to how polybar is built.
If you want to, you can also open a PR to add your package to the `Getting
Started <https://github.com/polybar/polybar#getting-started>`_ section of our
README.
Thank you very much for maintaining a polybar package! 🎉

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man/polybar.1
.. toctree::
:maxdepth: 1
:caption: For Contributors:
dev/packaging
Getting Help
============