Unable to create Chome-OS shortcut for non-containing *.desktop package

[mineshanya]

I faced this problem when tried to add codium shortcut.

Carefully! The following actions might have negative side effects! Do at your own risk!

The thing is that crew-launcher search *.desktop existence in /usr/local/etc/crew/meta/*.filelist and doesn't check in default directories like /usr/local/share/applications/*.desktop.

So, as *.desktop wasn't created during initial package installation, crew-launcher throws an error:

chronos@localhost / $ crew-launcher add codium
Cannot find an '.desktop' file for codium :/

So, i created /usr/local/share/applications/codium.desktop file:

[Desktop Entry]
Name=VSCodium
GenericName=Programming Text Editor
Comment=Programming Text Editor
Exec=/usr/local/bin/codium
#Exec=/usr/local/VSCodium-linux-x64/bin/codium #Alternative path
Icon=/usr/local/VSCodium-linux-x64/resources/app/resources/linux/code.png
Terminal=false
Type=Application
Categories=Programming;
Keywords=VS;Coding;

Then I added this file entry to codium.filelist:

chronos@localhost / $ echo "/usr/local/share/applications/codium.desktop" >> /usr/local/etc/crew/meta/codium.filelist

And now the first error solved! But.........

Now I stucked at this point:

And at this point I faced a second trouble:
crew-launcher searchs icon again in *.filelist with pattern declared in *.desktop file plus 3 file extension variants.
In my case icon path in *.desktop was:

Icon=/usr/local/VSCodium-linux-x64/resources/app/resources/linux/code.png

And what crew-launcher tried to find in *.filelist:

/usr/local/VSCodium-linux-x64/resources/app/resources/linux/code.png.svg
/usr/local/VSCodium-linux-x64/resources/app/resources/linux/code.png.xpm
/usr/local/VSCodium-linux-x64/resources/app/resources/linux/code.png.png

U see? double *.png! So, after I stucked at "Add to launcher" button and canceled command via Ctrl+C i've got an another error:

chronos@localhost / $ crew-launcher add codium
Unable to find an icon :/

So, the last thing is to remove icon's file extension in *.desktop file:

chronos@localhost / $ nano /usr/local/share/applications/codium.desktop

And change this:

Icon=/usr/local/VSCodium-linux-x64/resources/app/resources/linux/code.png

To this:

Icon=/usr/local/VSCodium-linux-x64/resources/app/resources/linux/code

It breaks normal *.desktop behavior, but allows crew-launcher to successfully generate a shortcut.

And now everything works fine:

After all mentioned actions it might worth to revert *.filelist to it's initial state. But I left my changes as I think the whole effect would be in removing the manually created *.desktop during package removal, idk.