misc_nixos-mailserver/docs/howto-develop.rst
Antoine Eiche 4d087532b6 docs: generate the list of options
To generate the list of options, we need to generate and commit a rst
file to make all files available for ReadTheDoc.

An Hydra test ensures this generated file is up-to-date. If it is not
up-to-date, the error message explains the user how to generate it:
the user just needs to run `nix-shell --run generate-rst-options`.
2021-07-27 19:58:33 +00:00

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Contribute or troubleshoot
==========================
To report an issue, please go to
`<https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/issues>`_.
You can also chat with us on the Libera IRC channel ``#nixos-mailserver``.
Run NixOS tests
---------------
To run the test suite, you need to enable `Nix Flakes
<https://nixos.wiki/wiki/Flakes#Installing_flakes>`.
You can then run the testsuite via
::
$ nix flake check -L
Since Nix doesn't garantee your machine have enough resources to run
all test VMs in parallel, some tests can fail. You would then haev to
run tests manually. For instance:
::
$ nix build .#hydraJobs.x86_64-linux.external-unstable -L
Contributing to the documentation
---------------------------------
The documentation is written in RST, build with Sphinx and published
by `Read the Docs <https://readthedocs.org/>`_.
For the syntax, see `RST/Sphinx Cheatsheet
<https://sphinx-tutorial.readthedocs.io/cheatsheet/>`_.
The ``shell.nix`` provides all the tooling required to build the
documentation:
::
$ nix-shell
$ cd docs
$ make html
$ firefox ./_build/html/index.html
Note if you modify some NixOS mailserver options, you would also need
to regenerate the ``options.rst`` file:
::
$ nix-shell --run generate-rst-options
Nixops
------
You can test the setup via ``nixops``. After installation, do
::
$ nixops create nixops/single-server.nix nixops/vbox.nix -d mail
$ nixops deploy -d mail
$ nixops info -d mail
You can then test the server via e.g. \ ``telnet``. To log into it, use
::
$ nixops ssh -d mail mailserver
Imap
----
To test imap manually use
::
$ openssl s_client -host mail.example.com -port 143 -starttls imap