nixpkgs/pkgs/test/texlive/default.nix

{ lib, runCommandNoCC, fetchurl, file, texlive, writeShellScript }:

{
  chktex = runCommandNoCC "texlive-test-chktex" {
    nativeBuildInputs = [
      (with texlive; combine { inherit scheme-infraonly chktex; })
    ];
    input = builtins.toFile "chktex-sample.tex" ''
      \documentclass{article}
      \begin{document}
        \LaTeX is great
      \end{document}
    '';
  } ''
    chktex -v -nall -w1 "$input" 2>&1 | tee "$out"
    grep "One warning printed" "$out"
  '';

  dvipng = lib.recurseIntoAttrs {
    # https://github.com/NixOS/nixpkgs/issues/75605
    basic = runCommandNoCC "texlive-test-dvipng-basic" {
      nativeBuildInputs = [ file texlive.combined.scheme-medium ];
      input = fetchurl {
        name = "test_dvipng.tex";
        url = "http://git.savannah.nongnu.org/cgit/dvipng.git/plain/test_dvipng.tex?id=b872753590a18605260078f56cbd6f28d39dc035";
        sha256 = "1pjpf1jvwj2pv5crzdgcrzvbmn7kfmgxa39pcvskl4pa0c9hl88n";
      };
    } ''
      cp "$input" ./document.tex

      latex document.tex
      dvipng -T tight -strict -picky document.dvi
      for f in document*.png; do
        file "$f" | tee output
        grep PNG output
      done

      mkdir "$out"
      mv document*.png "$out"/
    '';

    # test dvipng's limited capability to render postscript specials via GS
    ghostscript = runCommandNoCC "texlive-test-ghostscript" {
      nativeBuildInputs = [ file (with texlive; combine { inherit scheme-small dvipng; }) ];
      input = builtins.toFile "postscript-sample.tex" ''
        \documentclass{minimal}
        \begin{document}
          Ni
          \special{ps:
            newpath
            0 0 moveto
            7 7 rlineto
            0 7 moveto
            7 -7 rlineto
            stroke
            showpage
          }
        \end{document}
      '';
      gs_trap = writeShellScript "gs_trap.sh" ''
        exit 1
      '';
    } ''
      cp "$gs_trap" ./gs
      export PATH=$PWD:$PATH
      # check that the trap works
      gs && exit 1

      cp "$input" ./document.tex

      latex document.tex
      dvipng -T 1in,1in -strict -picky document.dvi
      for f in document*.png; do
        file "$f" | tee output
        grep PNG output
      done

      mkdir "$out"
      mv document*.png "$out"/
    '';
  };

  # https://github.com/NixOS/nixpkgs/issues/75070
  dvisvgm = runCommandNoCC "texlive-test-dvisvgm" {
    nativeBuildInputs = [ file texlive.combined.scheme-medium ];
    input = builtins.toFile "dvisvgm-sample.tex" ''
      \documentclass{article}
      \begin{document}
        mwe
      \end{document}
    '';
  } ''
    cp "$input" ./document.tex

    latex document.tex
    dvisvgm document.dvi -n -o document_dvi.svg
    cat document_dvi.svg
    file document_dvi.svg | grep SVG

    pdflatex document.tex
    dvisvgm -P document.pdf -n -o document_pdf.svg
    cat document_pdf.svg
    file document_pdf.svg | grep SVG

    mkdir "$out"
    mv document*.svg "$out"/
  '';
}