depot/third_party/nixpkgs/doc/doc-support/lib-function-docs.nix

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# Generates the documentation for library functions via nixdoc.
{ pkgs, locationsXml, libsets }:
with pkgs; stdenv.mkDerivation {
name = "nixpkgs-lib-docs";
src = ../../lib;
buildInputs = [ nixdoc ];
installPhase = ''
function docgen {
# TODO: wrap lib.$1 in <literal>, make nixdoc not escape it
if [[ -e "../lib/$1.nix" ]]; then
nixdoc -c "$1" -d "lib.$1: $2" -f "$1.nix" > "$out/$1.xml"
else
nixdoc -c "$1" -d "lib.$1: $2" -f "$1/default.nix" > "$out/$1.xml"
fi
echo "<xi:include href='$1.xml' />" >> "$out/index.xml"
}
mkdir -p "$out"
cat > "$out/index.xml" << 'EOF'
<?xml version="1.0" encoding="utf-8"?>
<root xmlns:xi="http://www.w3.org/2001/XInclude">
EOF
${lib.concatMapStrings ({ name, description }: ''
docgen ${name} ${lib.escapeShellArg description}
'') libsets}
echo "</root>" >> "$out/index.xml"
ln -s ${locationsXml} $out/locations.xml
'';
}