How to configure ghostscript on macos

[nielsbosma]

I'm using this ghostscript build from anaconda osx-64/ghostscript-9.54.0-h96cf925_2.tar.bz2.

I don't want to install ghostscript on the machine so I unzip this to ~/.ghostscript/

In my C# code I then set:

MagickNET.SetGhostscriptDirectory("~/.ghostscript/bin");

I'm then getting this error:

ImageMagick.MagickDelegateErrorException: FailedToExecuteCommand `'gs' -sstdout=%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 '-sDEVICE=pngalpha' -dTextAlphaBits=4 -dGraphicsAlphaBits=4 '-r72x72' -dFirstPage=1 -dLastPage=1 -dEPSCrop '-sOutputFile=/var/folders/z2/l2wtfwl949b0zj6t8t_vj2p40000gn/T/magick-rzApJ8zxK2Rb2

On Windows this works fine.

The build seems to be fine when running directly in the CLI.

[dlemstra]

I don't understand what you mean by this statement:

The build seems to be fine when running directly in the CLI.

[nielsbosma]

What I mean is that the ghostscript library in ~/.ghostscript/bin works fine from the CLI.

[dlemstra]

The MagickNET.SetGhostscriptDirectory method only works on Windows. I will update the documentation to make this more clear. I am also wondering if I should throw an exception on a non windows platform for those that don't read the documentation. I don't know how you can do this but you should add ~/.ghostscript/bin to the path of the user that is running the application.

[dlemstra]

Thanks for the console application but I don't own a mac so I cannot reproduce this locally. Have you tried to use MagickNET.SetFontConfigDirectory?

[nielsbosma]

Yes, I've tried that. I'd be happy to sponsor with a mac cloud VM if that helps?

[nielsbosma]

I decided I don't need Ghostscript in the end. But would be very good if there was any way to get fontconfig working.

[dlemstra]

Why is the MagickNET.SetFontConfigDirectory method not working? Did you put the required files in that folder?

[nielsbosma]

I keep getting Fontconfig error: Cannot load default config file
ImageMagick.MagickTypeErrorException: UnableToReadFont helvetica' @ error/annotate.c/RenderFreetype/1538 at ImageMagick.NativeInstance.CheckException(IntPtr exception, IntPtr result) in /_/src/Magick.NET/Native/NativeInstance.cs:line 57 at ImageMagick.MagickImage.NativeMagickImage.ReadFile(IMagickSettings1 settings) in //src/Magick.NET/Native/MagickImage.cs:line 7159
at ImageMagick.MagickImage.Read(String fileName, IMagickReadSettings1 readSettings, Boolean ping) in /_/src/Magick.NET/MagickImage.cs:line 7344 at ImageMagick.MagickImage.Read(String fileName, IMagickReadSettings1 readSettings) in //src/Magick.NET/MagickImage.cs:line 5124
at ImageMagick.MagickImage.Read(String fileName) in //src/Magick.NET/MagickImage.cs:line 5085
at ImageMagick.MagickImage..ctor(String fileName) in //src/Magick.NET/MagickImage.cs:line 198
at ImageMagickTest.Program.TestWithText() in /Users/filestar/Desktop/ImageMagickTest/Program.cs:line 55
at ImageMagickTest.Program.Main(String[] args) in /Users/filestar/Desktop/ImageMagickTest/Program.cs:line 23

What is the required files?

I download this https://anaconda.org/conda-forge/fontconfig/2.14.0/download/osx-64/fontconfig-2.14.0-h676cef8_0.tar.bz2

Unzip it and set:

MagickNET.SetFontConfigDirectory(Path.Combine(fcPath, "bin"));

(I've also tried without the "bin" part)

[nielsbosma]

FYI: I got it working by setting:
MagickNET.SetFontConfigDirectory(Path.Combine(fcPath, "etc", "fonts"));

My issue now is that fontconfig spits out a bunch of warnings on the console:

Fontconfig warning: "/Users/filestar/.config/com.filestar.macos/resources/debug/fontconfig/2.14.0/etc/fonts/fonts.conf", line 5: unknown element "description"
Fontconfig warning: "/Users/filestar/.config/com.filestar.macos/resources/debug/fontconfig/2.14.0/etc/fonts/conf.d/10-hinting-slight.conf", line 4: unknown element "description"
Fontconfig warning: "/Users/filestar/.config/com.filestar.macos/resources/debug/fontconfig/2.14.0/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 4: unknown element "description"
Fontconfig warning: "/Users/filestar/.config/com.filestar.macos/resources/debug/fontconfig/2.14.0/etc/fonts/conf.d/11-lcdfilter-default.conf", line 4: unknown element "description"

Can these be turned off?

/Niels

[dlemstra]

You will need to patch your fonts.conf file and remove the unknown element description.