texlive: add missing perl dependencies for latexindent

pkgs/tools/typesetting/tex/texlive/bin.nix

@@ -2,7 +2,7 @@
 , texlive
 , zlib, libiconv, libpng, libX11
 , freetype, gd, libXaw, icu, ghostscript, libXpm, libXmu, libXext
-, perl, pkgconfig, autoreconfHook
+, perl, perlPackages, pkgconfig, autoreconfHook
 , poppler, libpaper, graphite2, zziplib, harfbuzz, potrace, gmp, mpfr
 , cairo, pixman, xorg, clisp, biber
 , makeWrapper
@@ -364,4 +364,30 @@ xindy = stdenv.mkDerivation {
   '';
 };
 
+latexindent = perlPackages.buildPerlPackage rec {
+  inherit (src) name version;
+
+  src = stdenv.lib.head (builtins.filter (p: p.tlType == "run") texlive.latexindent.pkgs);
+
+  outputs = [ "out" ];
+
+  propagatedBuildInputs = with perlPackages; [ FileHomeDir LogDispatch LogLog4perl UnicodeLineBreak YAMLTiny ];
+
+  postPatch = ''
+    substituteInPlace scripts/latexindent/LatexIndent/GetYamlSettings.pm \
+      --replace '$FindBin::RealBin/defaultSettings.yaml' ${src}/scripts/latexindent/defaultSettings.yaml
+  '';
+
+  # Dirty hack to apply perlFlags, but do no build
+  preConfigure = ''
+    touch Makefile.PL
+  '';
+  buildPhase = ":";
+  installPhase = ''
+    install -D ./scripts/latexindent/latexindent.pl "$out"/bin/latexindent
+    mkdir -p "$out"/${perl.libPrefix}
+    cp -r ./scripts/latexindent/LatexIndent "$out"/${perl.libPrefix}/
+  '';
+};
+
 }