AppImage started failing when file association contains multiple extensions

[lutzroeder]

• Version: 20.26.1
• Target: Linux/AppImage

npx electron-builder --linux started failing when electron-builder.yml or package.json contains multiple file extensions for a single association. Works when building --mac and --win.

  ⨯ appimage.AppImageConfiguration.FileAssociations: []appimage.FileAssociation: appimage.FileAssociation.Ext: ReadString: expects " or n, but found [, error found in #10 byte of ...|t","ext":["txt","doc|..., bigger context ...|6}],"fileAssociations":[{"name":"Document","ext":["txt","doc"]}]}|...

Simple repro: repro3204.zip

[lutzroeder]

@develar, @AdrianoFerrari, is this a recent regression in AppImage file extension support?

[AdrianoFerrari]

Thanks for making it easy to reproduce.
I'll look into this in pockets of time over next few days.

[AdrianoFerrari]

First impressions, @lutzroeder :
As far as I can tell FileAssociation should contain both a name and an ext, for each entry. So it should probably be:

[{"name":"Document","ext":"txt"}, {"name":"Document", "ext": "doc"}]

Or in YAML:

fileAssociations:
  - name: Document
    ext: txt
  - name: Document
    ext: doc

Seems to run OK when I do that (well, except for other package.json complains like missing author email).

Not sure why that would have worked with --mac and --win though...

[lutzroeder]

Makes sense and thank you for looking into this. Guess it should either turn into a breaking change allowing only one extension per association and Win/Mac should flag arrays as an error as well or it should be fixed for AppImage.

[develar]

It is regression and will be addressed soon.

[fxha]

This issue is still not fixed. Any progress here or wontfix but please update the documentation if so?

[fxha]

There is another problem associated with the workaround @AdrianoFerrari mentioned. The workaround also fails when using the same icon for more than one entry on macOS.

• Multiple extension in one entry result in an error on Linux: log
• Using multiple entries but same icon result in an error on macOS: log

[ollm]

This error is still present when build AppImage in the current version of electron-builder (22.3.1)

This is the error you are currently giving:

⨯ appimage.AppImageConfiguration.FileAssociations: []appimage.FileAssociation: appimage.FileAssociation.Ext: ReadString: expects " or n, but found [, error found in #10 byte of ...|G","ext":["jpg","jpe|..., bigger context ...|eAssociations":[{"description":"Image JPG","ext":["jpg","jpeg","jif","jfi","jfif","jfif-tbnl","jpe"]|...  
⨯ /my-app-dir/node_modules/app-builder-bin/linux/x64/app-builder exited with code ERR_ELECTRON_BUILDER_CANNOT_EXECUTE  stackTrace=
           Error: /my-app-dir/node_modules/app-builder-bin/linux/x64/app-builder exited with code ERR_ELECTRON_BUILDER_CANNOT_EXECUTE
               at ChildProcess.<anonymous> (/my-app-dir/node_modules/builder-util/src/util.ts:239:14)
               at Object.onceWrapper (events.js:313:26)
               at ChildProcess.emit (events.js:223:5)
               at maybeClose (internal/child_process.js:1021:16)
               at Process.ChildProcess._handle.onexit (internal/child_process.js:283:5)

For example, this works

"fileAssociations": [
	{
		"description": "Image JPG",
		"ext": "jpg",
		"role": "Viewer"
	}
]

But this gives error

"fileAssociations": [
	{
		"description": "Image JPG",
		"ext": [
			"jpg",
			"jpeg",
			"jif",
			"jfi",
			"jfif",
			"jfif-tbnl",
			"jpe"
		],
		"role": "Viewer"
	}
]

[Kilian]

as of 22.11.8 this is still an issue.

[arantes555]

Also still having the same issue.

[AlanSean]

as of 22.13.1 this is still an issue.