Pack mono gtk-sharp application as AppImage

Creating AppImages
1

Hello everybody,

I’m developer of AudioCuesheetEditor https://sourceforge.net/p/audiocuesheet and would like to pack my application as an AppImage, but don’t know, where to start. I use fedora 28 with KDE environment.
To the application: It’s a mono gtk-sharp application, which also needs external libraries (SFML,CSFML,etc).
I’m not completely new to packaging, I also provided fedora RPMs some time ago, but now I would like to do the packaging more distribution open, so that’s why I’m here. I would like to deploy pre build binaries, what is the best way to do so? Is there some kind of spec to write? How do I get an AppImage?

Thanks for your help.
Sven

2

I haven’t packaged anything myself in AppImage format, but unless I’m wrong, AppImageKit is where you should start, specifically the appimagetool section on the Readme.

3

As for Mono, I am really not an expert on it but there are some notes on https://github.com/AppImage/AppImageKit/wiki/Bundling-Mono-apps.

Perhaps @Juniorsnet knows more.

4

Well thanks for your response. I’m not familiar with AppImage, so where do I start? I also read about the appimagetool, but how do I install it? And how do I use it? There must be some kind of specification, to tell the tool how to bundle my binaries, or am I missing something?

5

Please see https://github.com/AppImage/appimagekit/wiki and please let’s know here if you are missing any information thereafter. Thanks.

6

Maybe this script can help: https://gist.github.com/darealshinji/67b7705d186a5e4bc8e0438aa339b7a1
I have also mentioned this here: https://github.com/AppImage/AppImages/issues/332#issuecomment-393499284

7

Thank you. Very helpful.

To everyone packaging Mono/Gtk# applications as AppImages, please let us know here.

8

Maybe using dotnet publish would work?

See this .NET Core AppImage example of how to deploy .NET Core (Mono) applications as an AppImage using dotnet publish -f netcoreapp3.1 -r linux-x64 from within a .cs program.

9

If someone would like to try Mono/Gtk# application, it would be nice to package Pinta image editing program from https://www.pinta-project.com/releases/

It is already available as Snap and Flatpack package, but no AppImage yet.

10

Hey everyone I made SDL2-CS with Dotnet 3.1 ( netcoreapp3.1 ) = it works fine without requirements like ( filename ).so not found

If you want know to copy from installed or compiled libSDL2 libraries

Example: cp -a /usr/lib/(arch)-linux-gnu/libSDL2^ PATH-TO-AppDir/lib/(arch)-linux-gnu/

For published minimal Dotnet final application as
mkdir PATH-TO-AppDir/DotNetApp
And copy file contents from publish directory to DotNetApp than you know how did somebody like mono’s appimage LD_LIBRARY_PATH for finding with libSDL2 libraries.

It is really easy to bundle with AppImage

11

Hi @DeafMan1983, welcome to AppImage.

So you succeeded in making an AppImage of your project? Is it available for download somewhere? Then I can put it through our automated compatibility test.

12

Hey @probono, thanks for welcome!

Oh sorry I forget that. I will create one and I will show ok… sorry for late time.

13

UPDATED: I want show an example MonoRuntime ( 5.20.1 include Gtk#2 and Gtk+2 packages ( without themes and Stock images ) But I want try if it works as well. Check Google Drive

// EDIT: Remember that if you want completed Gtk2 runtime then you need share folder for themes, icon and stick images and make default theme like

Gtk.Settings.Default.ThemeName = "Xamarin-Dark";

And make sure compile and bundle in AppImage. Thanks!

// EDIT 2:
Yaaayyy I am very excited to make AppImage with Pinta = SUCCESSFULLY = Click Here!
PS Please tell Pinta Development! I made simple AppImage ( Include Package installation from Ubuntu or newest version with Pinta and Mono Runtime 5.20.1 with Mono.Addins 3 files and Gtk2 Packages with Icons ) If you have problem then you can try with appimage file --mount … If youz can change icons and theme as default…

Enjoy bundling and embedding AppImage

14

@DeafMan1983, I downloaded Pinta from your “EDIT 2” link from your above post and then on Ubuntu 20.04 I executed commands:
chmod a+x Pinta
. /Pinta
and I’ve got error message:

/tmp/.mount_Pinta2GPOIa/MonoRuntime/bin/mono: symbol lookup error: /tmp/.mount_Pinta2GPOIa/MonoRuntime/bin/mono: undefined symbol: clock_getres, version GLIBC_2.2.5

Do I need anything else to do?

15

Ah you use Ubuntu 20.04. Mono need compatible for Ubuntu 20.04 because I use Momo for Ubuntu 18.04.x. You should unpack to Pinta.AppDir and download Mono Runtime Raw version ( Minimal package ) for Ubuntu 20.04 x64 then you copy 3 bin, etc and lib to Pinta.AppDir/MonoRuntime then download appimagetool and type ,/appimagetool Pinta.AppDir Pinta and try your Pinta

16

I am not very familiar with AppImage, but if I understand correctly AppImage is Linux distribution and version dependent? For example Pinta’s AppImage should be build for multiple Linux distributions/versions in separate process one for each distribution/version?

17

AppImages will run on all systems that are as new as or newer than the system the binaries that went into the AppImage were built on.

Exception: AppImages that bundle everything, including glibc. Those can also run on older distributions than the one that was used for building what went into the AppImage.

18

[quote=“DeafMan1983, post:13, topic:402”]
Yaaayyy I am very excited to make AppImage with Pinta = SUCCESSFULLY = Click Here !
PS Please tell Pinta Development![/quote]

Great success! :+1:

Best contact them directly:

19

Build on Ubuntu xenial, which is currently the oldest still-supported Ubuntu release.

20

Is this also the case in Pinta build by @DeafMan1983? He build Pinta on Ubuntu 18.04 where allegedly working fine, but I am using Ubuntu 20.04 and appimage package does not work. Am I missing something?

Can someone build Pinta to work on Ubuntu 20.04? I am not a developer, just end-user.