RKWard | Submit to flathub (#13)

[Thomas Friedrichsmeier (@tfry)]

Thomas Friedrichsmeier commented:


https://github.com/flathub/flathub/pull/3042

On hold for now, because executing binaries outside the sandbox fails due to problems with the paths they see: https://docs.flatpak.org/en/latest/sandbox-permissions.html (e.g. gcc would be at /var/run/host/usr/bin, and can be started, but will fail as soon as it looks for any other files in /usr; same for R).

Plan to work around this:
 - Create a chroot-wrapper to start external R. The chroot dir (inside /app, I guess) will have the standard paths mapped in.
 - Start system-installed R inside that chroot.
 - Whenever passing paths between frontend and backend, make sure to map them as appropriate (this is going to be quite a hassle, but is a long-term-plan anyway, in order to allow remote R backends, for instance).
 - R will no longer be bundled inside the flatpak, after this, but be an external dependency (if allowed)

---

For reference:
flatpak cheat-cheet: https://develop.kde.org/docs/build/flatpak/publishing/

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