fixups.patch

diff --git a/opt/brother/Printers/mfcj3930dw/lpd/brmfcj3930dwfilter b/opt/brother/Printers/mfcj3930dw/lpd/brmfcj3930dwfilter
index 64114ab..6216f8b 100755
Binary files a/opt/brother/Printers/mfcj3930dw/lpd/brmfcj3930dwfilter and b/opt/brother/Printers/mfcj3930dw/lpd/brmfcj3930dwfilter differ
diff --git a/opt/brother/Printers/mfcj3930dw/lpd/filter_mfcj3930dw b/opt/brother/Printers/mfcj3930dw/lpd/filter_mfcj3930dw
index 3ae6723..1c49cfa 100755
--- a/opt/brother/Printers/mfcj3930dw/lpd/filter_mfcj3930dw
+++ b/opt/brother/Printers/mfcj3930dw/lpd/filter_mfcj3930dw
@@ -14,7 +14,7 @@ my $offset="";

 my $HWMARGINS="yes";

-my $PRINTER = $0;
+my $PRINTER = $ENV{PRINTER};
 my $INPUT_TEMP='';
 my $FILE_TYPE="PostScript";
 my $LOGFILE = "/tmp/br_lpdfilter_ink.log";
@@ -45,7 +45,7 @@ sub logprint  {



-my $BR_PRT_PATH = Cwd::realpath ($0);
+my $BR_PRT_PATH = Cwd::realpath ($ENV{BR_PRT_PATH});

 $BR_PRT_PATH =~ s/$PRINTER\/lpd\/.*$/$PRINTER\//g;

@@ -172,7 +172,7 @@ elsif ( $resolution eq "300" ){

 logprint(1, "size_gs = $size_gs ,size_br = $size_br \n");

-my $GHOST_SCRIPT=`which gs`;
+my $GHOST_SCRIPT="gs";
 chomp($GHOST_SCRIPT);

 #my $OUTPUT_TYPE="bit";
@@ -227,13 +227,13 @@ elsif ( $DEBUG eq '2' ){

     logprint(1, "file type = <$FILE_TYPE>\n");
 	if ( $FILE_TYPE eq "PDF\n" ){
-    	logprint(1, "/usr/bin/pdf2ps  $INPUT_TEMP $TMP_PS\n");
+    	logprint(1, "pdf2ps  $INPUT_TEMP $TMP_PS\n");
 		`cp $INPUT_TEMP /tmp/tmp.pdf`;		
 		$TMP_PS="/tmp/tmp.ps";		
-		`/usr/bin/pdf2ps  $INPUT_TEMP $TMP_PS`;
+		`pdf2ps  $INPUT_TEMP $TMP_PS`;
 		`cat $TMP_PS| sed s/'%%HiResBoundingBox:'/'%HiResBoundingBox:'/g >> /tmp/br_lpdfilter_ink_gsout.dat`;	
     	logprint(1, " echo  '<</ImagingBBox [$left $top $right $bottom] /PageOffset [-$left $top]>> setpagedevice' > /tmp/br_lpdfilter_ink_gsout.dat\n");
-    	logprint(1, " /usr/bin/pdf2ps  $INPUT_TEMP $TMP_PS| cat $TMP_PS| sed s/'%%HiResBoundingBox:'/'%HiResBoundingBox:'/g > /tmp/br_lpdfilter_ink_gsout.dat\n");
+    	logprint(1, " pdf2ps  $INPUT_TEMP $TMP_PS| cat $TMP_PS| sed s/'%%HiResBoundingBox:'/'%HiResBoundingBox:'/g > /tmp/br_lpdfilter_ink_gsout.dat\n");

  	}else{
 	   `cat $INPUT_TEMP      >> /tmp/br_lpdfilter_ink_gsout.dat`;
@@ -272,7 +272,7 @@ else{
 #		`cp $INPUT_TEMP /tmp/tmp".pdf`;
 #		`cp $INPUT_TEMP $TMP_PDF`;				
 #		$TMP_PS="/tmp/tmp.ps";		
-		`/usr/bin/pdf2ps  $INPUT_TEMP $TMP_PS`;
+		`pdf2ps  $INPUT_TEMP $TMP_PS`;
 		`cat $TMP_PS| sed s/'%%HiResBoundingBox:'/'%HiResBoundingBox:'/g >>$TMP_PS1`;	

     }else{

mfcj3930dw-cupswrapper.nix

{
  lib,
  stdenv,
  fetchurl,
  makeWrapper,
  dpkg,
  cups,
  perl,
  coreutils,
  gnused,
  gnugrep,
  pkgs,
  mfcj3930dw-lpr
}:
  let
    model      = "mfcj3930dw";
    wrapperDir = "opt/brother/Printers/${ model }/cupswrapper";
  in
    stdenv.mkDerivation rec {
      pname = "${ model }-cupswrapper";
      version = "1.0.1-0";

      src = fetchurl {
        url = "https://download.brother.com/welcome/dlf103038/${ model }cupswrapper-${version}.i386.deb";
        sha256 = "sha256-oAmM4tnWGzQ79yyxkxIV3SLrE3PL+VAQJ7dtU+lxTPI=";
      };

      unpackCmd = "mkdir -p ./deb/; ${ dpkg }/bin/dpkg-deb -x $curSrc ./deb/";

      nativeBuildInputs = [ makeWrapper ];
      buildInputs = [ cups perl coreutils gnused gnugrep mfcj3930dw-lpr ];

      patches = [ ./printer-regex.patch ];

      patchPhase = ''
        patchPhase

        pushd "${ wrapperDir }"

        substituteInPlace "cupswrapper${ model }" \
          --replace /usr/share/cups/model "$out/share/cups/model" \
          --replace /usr/share/ppd "$out/share/ppd" \
          --replace /usr/lib/cups/filter "$out/lib/cups/filter" \
          --replace /usr/lib64/cups/filter "$out/lib64/cups/filter" \
          --replace /opt "$out/opt" \
          --replace /usr "$out/usr" \
          --replace /etc "$out/etc" \
          --replace "cp " "\cp -p "

        popd
      '';

      installPhase = ''
        mkdir -p $out
        cp -a . $out

        sed -i '/\$DEBUG=0;/c\$DEBUG=1;' $out/${ wrapperDir }/brother_lpdwrapper_${ model }

        wrapProgram "$out/${ wrapperDir }/brother_lpdwrapper_${ model }" \
          --inherit-argv0 \
          --prefix PATH ":" ${ lib.makeBinPath [ coreutils gnugrep mfcj3930dw-lpr ] }

        # Link LPR things
        ln -s ${ mfcj3930dw-lpr }/opt/brother/Printers/mfcj3930dw/lpd $out/opt/brother/Printers/mfcj3930dw/lpd
        ln -s ${ mfcj3930dw-lpr }/opt/brother/Printers/mfcj3930dw/inf $out/opt/brother/Printers/mfcj3930dw/inf

        mkdir -p $out/share/cups/model/Brother/
        ln -s $out/${ wrapperDir }/brother_${ model }_printer_en.ppd $out/share/cups/model/Brother/

        mkdir -p $out/lib/cups/filter/
        ln -s "$out/${ wrapperDir }/brother_lpdwrapper_${ model }" "$out/lib/cups/filter/"
      '';

      meta = with lib; {
        homepage = "https://www.brother.com/";
        description = "Brother MFC-J3930DW CUPS wrapper driver";
        license = licenses.gpl2Only;
        platforms = platforms.linux;
        downloadPage = "https://support.brother.com/g/b/downloadlist.aspx?c=us&lang=en&prod=${ model }_all&os=128&autolayerclose=1";
        # maintainers = with maintainers; [ svavs ];
      };
    }

mfcj3930dw-lpr.nix

{
  lib,
  stdenv_32bit,
  fetchurl,
  glibc,
  cups,
  dpkg,
  ghostscript,
  a2ps,
  coreutils,
  gnused,
  gawk,
  file,
  gnugrep,
  makeWrapper,
  perl,
  buildFHSEnv
}:
  let
    stdenv = stdenv_32bit;

    version   = "1.0.1-0";
    model     = "mfcj3930dw";
    driverDir = "opt/brother/Printers/${ model }";

    debSrc = fetchurl {
      url = "https://download.brother.com/welcome/dlf103014/${ model }lpr-${ version }.i386.deb";
      sha256 = "sha256-l3ViK3dJOXNhw6VsathXY/89x4NWHeZJ13qRK0RMAEc=";
    };

    lpr-pkg = stdenv.mkDerivation rec {
      inherit version;

      pname = "${ model }-lpr-pkg";

      src = debSrc;

      nativeBuildInputs = [ makeWrapper dpkg ];
      buildInputs = [ cups perl ghostscript a2ps gnused coreutils ];

      unpackCmd = "mkdir -p ./deb/; dpkg-deb -x $curSrc ./deb/";

      installPhase = ''
        mkdir -p $out/${ driverDir }
        cp -a ${ driverDir }/. $out/${ driverDir }/

        mkdir -p $out/bin
        cp -a usr/bin/. $out/bin/
      '';
    };

    # The binary filter is a tool and has hardcoded paths to /opt/brother/Printers/
    # So we just wrap it in FHS and call it a day
    infFhs = buildFHSEnv rec {
      name = "${ model }-lpd-inf-fhs";

      targetPkgs = pkgs: with pkgs; [
        lpr-pkg
        cups perl ghostscript a2ps gnused coreutils file
      ];
    };

    lpr = stdenv.mkDerivation rec {
      inherit version;

      pname = "${ model }-lpr";

      src = debSrc;

      nativeBuildInputs = [ makeWrapper dpkg ];
      buildInputs = [ cups perl ghostscript a2ps ];

      unpackCmd = "mkdir -p ./deb/; dpkg-deb -x $curSrc ./deb/";

      patches = [ ./fixups.patch ];

      patchPhase = ''
        INTERPRETER="${ stdenv.cc.bintools.dynamicLinker }"

        patchPhase

        # Fix the driver binary

        patchelf \
          --set-rpath "${ stdenv.cc.cc.lib }/lib" \
          --set-interpreter "$INTERPRETER" \
          ${ driverDir }/lpd/br${ model }filter

        # Fix brprintconf

        # TODO: there are strings in the file referring to /opt/brother/Printers/%s/inf/br
        #       that would need fixing

        mkdir bin/
        mv usr/bin/brprintconf_${ model } bin/
        rm -rf usr/bin

        patchelf \
          --set-rpath ${ stdenv.cc.cc.lib }/lib \
          --set-interpreter "$INTERPRETER" \
          bin/brprintconf_${ model }
      '';

      installPhase = ''
        mkdir -p $out/${ driverDir }/lpd
        cp -a ${ driverDir }/lpd/. $out/${ driverDir }/lpd

        # Link inf directory
        ln -s ${ lpr-pkg }/opt/brother/Printers/mfcj3930dw/inf $out/opt/brother/Printers/mfcj3930dw/inf

        mkdir $out/bin

        cat > "$out/bin/brprintconf_${ model }" <<EOSH
        #!/bin/sh
        set -x
        exec "${ infFhs }/bin/${ model }-lpd-inf-fhs" -c "set -x; exec -a "brprintconf_${ model }" brprintconf_${ model } \"\\\$@\"" -- "\$@"
        EOSH

        chmod +x "$out/bin/brprintconf_mfcj3930dw"

        # Link bin
        ln -s ${ lpr-pkg }/bin $out/bin

        wrapProgram "$out/${ driverDir }/lpd/filter_${ model }" \
          --set PRINTER "${ model }" \
          --set BR_PRT_PATH "$out/${ driverDir }/lpd/filter_${ model }" \
          --prefix PATH ":" ${ lib.makeBinPath [ ghostscript a2ps file gnused gnugrep coreutils ] }

        FILTER_FHS_WRAPPER="$out/${ driverDir }/lpd/br${ model }filter"
        FILTER_BINARY="$out/${ driverDir }/lpd/.br${ model }filter-wrapped"

        mv "$FILTER_FHS_WRAPPER" "$FILTER_BINARY"

        cat > "$FILTER_FHS_WRAPPER" <<EOSH
        #!/bin/sh
        set -x
        exec "${ infFhs }/bin/${ model }-lpd-inf-fhs" -c "set -x; exec -a "br${ model }filter" $FILTER_BINARY \"\\\$@\"" -- "\$@"
        EOSH

        chmod +x "$FILTER_FHS_WRAPPER"
      '';

      meta = with lib; {
        homepage = "https://www.brother.com/";
        description = "Brother MFC-J3930DW LPR driver";
        license = licenses.unfree;
        platforms = platforms.linux;
        downloadPage = "https://support.brother.com/g/b/downloadlist.aspx?c=us&lang=en&prod=${ model }_all&os=128&autolayerclose=1";
        # maintainers = with maintainers; [ svavs ];
      };
    };
  in
    lpr

printer-regex.patch

diff --git a/opt/brother/Printers/mfcj3930dw/cupswrapper/brother_lpdwrapper_mfcj3930dw b/opt/brother/Printers/mfcj3930dw/cupswrapper/brother_lpdwrapper_mfcj3930dw
index 29b788d..1fc9861 100755
--- a/opt/brother/Printers/mfcj3930dw/cupswrapper/brother_lpdwrapper_mfcj3930dw
+++ b/opt/brother/Printers/mfcj3930dw/cupswrapper/brother_lpdwrapper_mfcj3930dw
@@ -85,7 +85,7 @@ if ( @ARGV >= 6 ){
 }


-$PRINTER =~ s/^\/opt\/.*\/Printers\///g;
+$PRINTER =~ s/^(\/.*?)?\/opt\/.*\/Printers\///g;
 $PRINTER =~ s/\/cupswrapper//g;
 $PRINTER =~ s/\///g;

@@ -507,7 +507,12 @@ unlink $LATESTINFO;
 my $TEMPRC = "/tmp/br".$PRINTER."rc_".$$;


-`cp  $basedir/inf/br${PRINTER}rc  $TEMPRC`;
+if( defined $ENV{BRPRINTERRCFILE} ) {
+  `cp  $ENV{BRPRINTERRCFILE}  $TEMPRC`;
+} else {
+  `cp  $basedir/inf/br${PRINTER}rc  $TEMPRC`;
+}
+
 $ENV{BRPRINTERRCFILE} = $TEMPRC;

 logprint( 0 , "TEMPRC    = $TEMPRC\n");