refactor(tvix/eval): rewrite xml emitter to be simple-stupid

In order to be compatible with the nix XML generator, it’s easier to
generate the XML directly, instead of going through a library which we
have to bend to do what we need.

Removes dependency on `xml-rs`, which came with a full XML parser that
we didn’t use. Only takes a tiny bit of code for the XML escaping,
somewhat simplified.

I add a little escaping value, to make sure we have the same behaviour
as nix proper.

Interestingly enough, we never need to escape XML attribute names,
because the `builtins.toXML` format encodes user-defined values as
attribute keys only. So we only escape attribute values.

Fixes: https://b.tvl.fyi/issues/399
Change-Id: If4d407d324864b3bb9aa3160e2ec6889f7727127
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11697
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: Profpatsch <mail@profpatsch.de>
This commit is contained in:
Profpatsch 2024-05-20 15:50:33 +02:00 committed by clbot
parent e7be342256
commit 5b2ba0efa1
9 changed files with 205 additions and 89 deletions

View file

@ -13222,10 +13222,6 @@ rec {
packageId = "tvix-eval-builtin-macros";
rename = "builtin-macros";
}
{
name = "xml-rs";
packageId = "xml-rs";
}
];
devDependencies = [
{
@ -16041,18 +16037,6 @@ rec {
};
resolvedDefaultFeatures = [ "default" "unsupported" ];
};
"xml-rs" = rec {
crateName = "xml-rs";
version = "0.8.19";
edition = "2021";
crateBin = [ ];
sha256 = "0nnpvk3fv32hgh7vs9gbg2swmzxx5yz73f4b7rak7q39q2x9rjqg";
libName = "xml";
authors = [
"Vladimir Matveev <vmatveev@citrine.cc>"
];
};
"xz2" = rec {
crateName = "xz2";
version = "0.1.7";