in theory this might be ready to deploy. Potential hazards & things to
know when actually doing so:
1. the mysql version used by mattermost was updated (the old uses an
openssl which is marked insecure). Might have to migrate a database
2. lots of settings now use RFC 42-style settings, which might contain
new typos
3. this updates uffd (& changes the patches we apply). Since version
dependencies of uffd are basically "whatever debian has" we have
never bothered to match them, but afaik have also never updated uffd
since the initial deploy some years ago. No guarantee it still
works.
4. tracktrain depends on haskellPackages.conferer-warp, which is
currently marked broken. There is no reason for this (it builds
fine). Until fixed upstream, build with NIXPKGS_ALLOW_BROKEN=1.
cf. https://github.com/NixOS/nixpkgs/pull/234784; waiting for a
merge of haskell-updates into 23.05
this is currently deployed and appears to be working. please everyone
have a look at it & then decide if we want to use this for the other
secrets as well.
this replaces niv with nix flakes, attempting to preserve the old
structure as much as possible. Notable caveats:
- I'm not sure if flake inputs expose version information anywhere, so
the version in pkgs/mattermost/default.nix is now hardcoded.
Confusingly, this appears to trigger a rebuild. Maybe I've missed something.
- a lot of the old-style host.nix & deploy.nix machinery in nix-hexchen
does not work with flakes, and their newer replacements are not exposed
by upstream; I've put basic imitations of the relevant parts in this repo
- (in particular, directories in hosts/ won't become deployable configs
automatically)
- parts of the code are now probably more complicated than they'd have to be
- old variables names were preserved; confusingly, this means the flake
inputs are still called "sources"
Intended for KontraIAA; requirements were that it should be a simple and
non-confusing as possible.
I tried both KiwiIRC and thelounge, and found both horrible to
package (a fact not helped by the somewhat opaque structure of
nixpkgs.nodePackages, which does contain a version of thelounge but
will apparently ignore overrides of the src attribute).
Instead, this now contains a very hacky version of thelounge, which
merely takes the already-built version from nixpkgs and glues some extra
css to it which hides potentially confusing fields.
Things hidden on the "connect" screen:
- the "name" field (since thelounge offers "nick" "name" and "realname"
by default, which seems too much for something embedded on a website)
- the "I have a password" checkbox
Things hidden on the general view:
- the button to open the side panel (the panel itself is not hidden,
and will appear by itself on wider layouts), so that users will only
see that one channel
- the "channel options" menu (which includes a "leave channel" option
which would effectively break the webchat)
Things not addressed:
- thelounge has autocompletion for /join /leave, etc. Do we want to
disable that as well?
- It would probably useful to suppress all the "x joined the channel"
messages. Thelounge supports this, but apparently doesn't support
setting it as default?
Misc:
- for now, users will be connected to #thelounge on libera.chat, which
appears to be okay with being used as an experimental channel
- I allowed prefetching link previews, but only on the server's side
(i.e. users' browsers won't fetch content from arbitrary sites)
- not yet tested on hainich, but should work (tested in a NixOS
container)
- currently assumes a "webchat.voc.hacc.space" domain (I think we had a
voc domain? but I forgot where it is …)
Among other things, this contains the "collapsable reply threads" feature
which makes it behave similar to slack.
Also, after spending thirty minutes or so attempting to teach niv that
it should really only fetch the tag "5.37.0" from the mattermost-server
repository and not any other commit, branch, or similar (there is a
"release-5.37" branch, but that seems to be for active development), I
have temporarily given up on it and typed in the urls manually.
Unfortunately, this means that any kind of `niv update` will now break
things. If anyone knows how to use niv correctly for this please patch
this; otherwise I guess we can extract mattermost out from niv again.
