XDG_DATA_DIRS is missing when starting AppImage on Fedora 24

[probonopd]

• Version: 5.23.2

• Target: Linux AppImage

The script used as AppRun in electron-builder fails on systems that have no $XDG_DATA_DIRS environment variable set, e.g., Fedora 24.

In AppImageKit, AppRun.c normally sets $XDG_DATA_DIRS so that this is not an issue there, but since AppRun.c from AppImageKit is not used in electron-builder, this needs to be taken care of in the script that electron-builder uses as its AppRun. The best behavior would probably be to set $XDG_DATA_DIRS to $APPDIR/usr/share:$HOME/.local/share:/usr/local/share/:/usr/share, or remove the line that checks for XDG_DATA_DIRS being set.

See
toolkit-for-ynab/unofficial-desktop-for-ynab#1
vercel/hyper#551
AppImage/AppImageKit#208

[develar]

Thanks!