Handling of MIME types

snapcraft
1

Hi there,
I have successfully created a .desktop file for my snapped application (brynhild) and it shows up correctly in the start menu etc:

apps:
brynhild:
command: bin/desktop-launch $SNAP/brynhild
desktop: desktop/volsung-brynhild.desktop

This is how the desktop file looks like:
[Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
Terminal=false
Exec=brynhild %F
Name=Brynhild
Icon=brynhild-icon
Categories=Geothermal;
MimeType=application/x-brynhild;

Question: There is currently no reference to the file brynhild.xml which defines my MimeType in the snapcraft.yaml file. How would I reference it correctly so that the snapped volsung.brynhild application associates with it?

3

AFAIK this is not possible from within your snap, or when installing your snap. However, just because you are using a snap shouldn’t mean users are prevented from accessing basic functionality. The trick is to ask the user to run a post-install script manually. Here is an example of how I have implemented this: https://snapcraft.io/kaffelogic-studio

The post install script looks like this

    echo Installing mime types for .ext1 and .ext2
    cp /snap/mysnap/current/opt/mysnap/mysnap.xml /usr/share/mime/packages
    update-mime-database /usr/share/mime