So here is what has been keeping me up at night: At some point I
realized that nix actually made a somewhat passable language for CGI
programming:
* That `builtins.getEnv` exists as one of the impurities of Nix is
perfect as environment variables are the main way of communication
from the web server to the CGI application.
* We can actually read from the filesystem via builtins.readDir and
builtins.readFile with bearable overhead if we avoid importing the
used paths into the nix store.
* Templating and routing are convenient to implement via indented strings
and attribute sets respectively.
Of course there are obvious limitation:
* The overhead of derivations is probably much to great for them to be
useful via IfD.
* Even without derivations, nix evaluation is very slow to the point
were a trivial application takes between 100ms and 400ms to produce a
response.
* We can't really cause effects other than producing a response which
makes it not viable for a lot of applications. There are some ways
around this:
* With a custom interpreter we could have streaming and multiplexed
I/O (using lazy lists emulated via attrsets) to cause such effects,
but it would probably perform terribly.
* We can use builtins.fetchurl to call other HTTP-based microservices,
but only in very limited constraints, i. e. only GET, no headers,
and only if the tarball ttl is set to 0 in the global nix.conf.
* Terrible error handling capabilities because builtins.tryEval actually
doesn't catch a lot of errors.
To prove that it actually works, there are some demo applications,
which I invite you to run and potentially break horribly:
nix-build -A web.bubblegum.examples && ./result
# navigate to http://localhost:9000
The setup uses thttpd and executes the nix CGI scripts using
users.sterni.nint which automatically passed `depot`, so they can
import the cgi library.
Change-Id: I3a22a749612211627e5f8301c31ec2e7a872812c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2746
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
web-brutalism is so 3 years ago, bro
but seriously, I'd like to start putting some actual stuff here, so
let's make it look halfway-decent.
Change-Id: Ic78d725b3755c2307c7ea155af8d0f90e287830c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2697
Reviewed-by: glittershark <grfn@gws.fyi>
Tested-by: BuildkiteCI
Get achilles building in Nix as part of the depot's build tree. This
involved making it work with stable rust, since the depot only exposes
stable rust to sub-packages, which turned out to be fairly
straightforward.
Also adds libffi as a new top-level expose, since it's required to build achilles
Change-Id: I5f6dedb26c0b81ec258aedde1973e74903c07ece
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2612
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
The breaking removal of triangulationEdges was not that big of a deal
after all: It was just renamed to edgesAsPoints apparently, so the fix
is easy enough and we can save one override.
hgeometry-combinatorial's doctests seem to trigger some kind of GHC
dynamic linking bug (https://github.com/noinia/hgeometry/issues/132) so
we disable the tests.
Change-Id: Iba2a64cade4d1a55fa4b81846e1116f282d4590a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2608
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
The following changes in dependencies of xanthous broke the build and
have been fixed in this CL. Thus we can reenable CI for xanthous.
* random 1.2.0 removed the Read instance for StdGen, so we need use
System.Random.Internal to un-newtype StdGen into an SMGen in the
appropriate places as that type still has a Show and Read instance.
Requires a new direct dependency on splitmix as well.
* witherable 4.0 renamed Data.Witherable into Witherable and no longer
exports Filter.
* random 1.2.0 probably also broke the Function instance for GameState
which contains a StdGen. I'm not exactly sure which change exactly
triggered this, but the fix is easy enough: We implement a Function
instance for SMGen using functionShow allowing us to write a Function
instance for StdGen using functionMap. I've put these instances into
Xanthous.Orphans.
* hgeometry 0.12.0.0 removes the triangulationEdges function (which is
also not mentioned in the changelog, so I'm not sure if there's a
replacement yet). Fix by pinning to 0.11.0.0 for now.
* hedgehog-classes: relax bounds on semirings
Change-Id: I3617d8916d753b386c9fa80062be6bcbdfee0131
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2607
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
I actually wanted to check up on regex-tdfa-text in owothia, but
realized it was actually in a dependency. When porting the patch for
chatter to nixpkgs, I wondered if we could get rid of other overrides
or if we need to fix anything else in upstream.
* aeson, attoparsec, cassava, psqueues, hedgehog: jailbreaks are
no longer necessary
* fgl, fgl-arbitrary: upstream has the versions pinned by now
* hgeometry, hgeometry-combinatoral: upstream has moved past the
pinned versions, but we don't need to keep them downgraded as
xanthous's build is not broken by them.
* random-source: the upstream compiler shouldn't crash anymore,
additionally upstream has the version pinned here currently
* semialign: upstream also has 1.1.0.1 by now
* splitmix: splitmix has been fixed upstream and haskellPackages
has moved past 0.1
* hspec-core: test suite passes or upstream has disabled it as well
* QuickCheck: upstream advanced to the same version
* vinyl: upstream moved past the pinned version, causes no build failures
* comonad-extras: has been fixed upstream
Change-Id: I34eff81ceaac005f2ad90dd9c1d3e623b8da91c0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2606
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
Making this a monthly service apparently.
Necessary changes:
* 3p: expose emacs27 instead of emacs26 which got removed
users/tazjin/{camden, frog}: switch from emacs26 to emacs27
* 3p/lieer: google_api_python_client got renamed to
google-api-python-client
Change-Id: I1011665d10eebc99990addbef6a8a6b000b93896
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2605
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
Reviewed-by: tazjin <mail@tazj.in>
Imports the current state of the tvl.fyi zone and configures simple CI
checks on the file format.
No deployment automation exists for this (yet?).
Change-Id: Ia7d72e02b9f6d3adef994c5dc1898cc0df9dfcfb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2600
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
Reviewed-by: sterni <sternenseemann@systemli.org>
htmlman is a very simple nix based static site generator which is
intended for rendering HTML representations for man pages plus an index
page listing all available pages. For the sake of simplicity (and unlike
previous iterations of this piece of code) other documentation artifacts
and formats are not supported.
Usually web services like GitHub and depot's web interface are pretty
good at displaying "normal" documentation artifacts like markdown files,
but man pages are usually not rendered — with the additional problem
that it's source is virtually unreadable. htmlman should provide a
simple static site generator which can be plugged into GitHub actions or
the like to automatically generate rendered version of man pages tracked
in version control.
Change-Id: Ib53292964b3ff84c32d70c5fde257a2edb8c2122
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2596
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: Profpatsch <mail@profpatsch.de>
Reviewed-by: sterni <sternenseemann@systemli.org>
Main motivation for this is to get the openldap update that fixes
10 CVEs: CVE-2020-36221 to including CVE-2020-36230. See also this
issue which lists them all: https://github.com/NixOS/nixpkgs/issues/113490
Someone should also redeploy whitby as soon as this lands in canon and
all build failures have been fixed.
Things done to resolve upstream breakages:
* grpc no longer takes abseil-cpp as an input, it has also been removed
in the override.
* Upgrade glittershark's kernel to 5.11 since the linuxPackages_5_9
attribute has been removed by upstream and the patch used by them is
available for 5.11 as well.
* The fixed output hash for third_patry.apereo-cas changed for some reason.
* Remove the pin of haskellPackages.vector from the haskell overlay. It
broke as the most recent version of vector in nixos-unstable no longer
depends on semigroups. This effectively updates vector from 0.12.1.2
to 0.12.2.0.
* Align two comments in tvix/libstore/worker-protocol.hh because the
updated clang-format now demands that.
Change-Id: I2ecf10a98de935e9222acf1feaea447d4c11ed2d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2538
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: glittershark <grfn@gws.fyi>
Reviewed-by: sterni <sternenseemann@systemli.org>
Nobody has actually done any experimentation with typed Go, so we're
getting rid of it for now - it's causing annoying IFD during build
graph generation.
Change-Id: Ibac3dea98ebed1b3ee08acda184d24c500cf695d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2458
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: Profpatsch <mail@profpatsch.de>
Uses inotify to watch a file and print when it is modified, so we can
update the parser and display the sexp on the terminal.
Now the setup is good enough to start experiementing with queries on
the syntax tree.
Change-Id: I091587fc495ff627c79a69a52915aaaa8c51fcd2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2411
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
The owners plugin should in theory be able to match on subdirs (at
least according to its documentation, but it doesn’t and nobody has
any idea how to debug it.
We already know that subdirectories work just fine, so let’s go the
path of least resistance because frankly, I couldn’t care any less.
The haskell overlay also moves to the subdir, this way both can be
changed in the same go by the same people.
Change-Id: I7d98f48afa649ad2c58e38e674e1c4df09039c1c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2347
Tested-by: BuildkiteCI
Reviewed-by: kanepyork <rikingcoding@gmail.com>
Reviewed-by: lukegb <lukegb@tvl.fyi>
