the conversion procedure is simple:
- find all things that look like options, ie calls to either `mkOption`
or `lib.mkOption` that take an attrset. remember the attrset as the
option
- for all options, find a `description` attribute who's value is not a
call to `mdDoc` or `lib.mdDoc`
- textually convert the entire value of the attribute to MD with a few
simple regexes (the set from mdize-module.sh)
- if the change produced a change in the manual output, discard
- if the change kept the manual unchanged, add some text to the
description to make sure we've actually found an option. if the
manual changes this time, keep the converted description
this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
adds defaultText for all options that use `cfg.*` values in their
defaults, but only for interpolations with no extra processing (other
than toString where necessary)
Without `ROOT_PATH` set, `gogs serv` tries to open logs in writing in
its store directory. This blocks cloning or pushing over ssh, and
results in a gogs internal error.
If neither database.password or database.passwordFile were provided,
it would try and fail to coerce null to a string.
This fixes the situation where there is no password for the database.
Resolves#27950
Pushing to gogs only works if the `gogs` user's shell is `bash`. For error and
solution, refer to [this SO thread](http://stackoverflow.com/a/22315659)
