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nixpkgs/pkgs/by-name/cu/cue/validator.nix
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24 lines
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Nix

{
cue,
writeShellScript,
lib,
}:
# `document` must be a fragment of definition or structure that the input data will be matched against.
# `document` must exist in the Cue schema file provided (`cueSchemaFile`).
# The result is a script that can be used to validate the input data (JSON/YAML and more can be supported depending on Cue)
# against the fragment described by `document` or the whole definition.
# The script will be strict and enforce concrete values, i.e. partial documents are not supported.
cueSchemaFile:
{
document ? null,
}:
writeShellScript "validate-using-cue" ''
${cue}/bin/cue \
--all-errors \
vet \
--concrete \
"$1" \
${cueSchemaFile} \
${lib.optionalString (document != null) "-d \"${document}\""}
''