Compressor "lzo" is not supported!

[MikeJerred]

• Electron-Builder Version: 23.2.0

• Node Version: 16.14.2

• Electron Version: 19.0.4
• Electron Type (current, beta, nightly): current

• Target: linux snap x64

If I add this setting to electron-builder.yml:

snap:
  compression: lzo

Then the build fails with:

  ⨯ cannot execute  cause=exit status 1
                    errorOut=/home/runner/.cache/electron-builder/appimage/appimage-12.0.1/linux-x64/mksquashfs: Compressor "lzo" is not supported!
    /home/runner/.cache/electron-builder/appimage/appimage-12.0.1/linux-x64/mksquashfs: Compressors available:
    	gzip (default)
    	xz

Either this is a bug, or the documentation is incorrect at https://www.electron.build/configuration/snap.html which states:

compression “xz” | “lzo” | “undefined” - Sets the compression type for the snap. Can be xz, lzo, or null.

[shensven]

same problem，see here https://github.com/shensven/Yadds/runs/7433015109?check_suite_focus=true

[mkinitcpio]

Same problem.

[mkinitcpio]

Update: I found the root of problem. This version mksquashfs that used for build package don't have lzo compression flag.

Screenshot

Quick fix: create a symlink to the original mksquashfs from OS (MAC/linux)

For me it works now!

[MikeJerred]

@mkinitcpio do your AppImage builds still work?

[mkinitcpio]

@MikeJerred Not tested yet, but now I have a problem with publishing to the snap store. Problem with checksum :(

[MikeJerred]

@mkinitcpio Might be related to this PR: https://github.com/electron-userland/electron-builder/pull/7110

I managed to get compression working but it required some monkey-patching of app-builder-lib

[mkinitcpio]

@MikeJerred, Yeees, I used you hack. So, I finded a solution how to publish my package.

https://forum.snapcraft.io/t/snapcraft-review-fails-wrong-permissions-electron-builder/10061

And steps to build "normal" package:

1. Use your patch for app-builder-lib
2. Use the solution from the link that I send before.
3. Upload.

I have no possibility to check it for AppImage (I use only snap in my app).

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