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If the user gives us a override or command-line argument that we cannot obey, like --filesystem=/usr/share/whatever or --filesystem=/run/flatpak/whatever, then it's confusing that we silently ignore it. We should give them an opportunity to see that their override was ineffective. However, there are a few situations where we still want to keep quiet. If there is a --filesystem argument for something that simply doesn't exist, we don't diagnose the failure to share it: that avoids creating unnecessary noise for apps that opportunistically share locations that might or might not exist, like the way the Steam app on Flathub asks for access to $XDG_RUNTIME_DIR/app/com.discordapp.Discord. Similarly, if we have been asked for --filesystem=host, the root directory is very likely to contain symlinks into a reserved path, like /lib -> usr/lib. We don't need a user-visible warning for that. We actually use the equivalent of g_message() rather than g_warning(), to avoid this being fatal during unit testing (in particular when we do a `flatpak info` on an app that has never been run, which will be unable to share its `.var/app` subdirectory). `app/flatpak-main.c` currently displays them as equivalent to each other anyway. Signed-off-by: Simon McVittie <smcv@collabora.com>
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux.
See https://flatpak.org/ for more information.
Community discussion happens in #flatpak:matrix.org, on the mailing list, and on the Flathub Discourse.
Read documentation for Flatpak here.
Contributing
Flatpak welcomes contributions from anyone! Here are some ways you can help:
- Fix one of the issues and submit a PR
- Update flatpak's translations and submit a PR
- Improve flatpak's documentation, hosted at http://docs.flatpak.org and developed over in flatpak-docs
- Find a bug and submit a detailed report including your OS, flatpak version, and the steps to reproduce
- Add your favorite application to Flathub by writing a flatpak-builder manifest and submitting it
- Improve the Flatpak support in your favorite Linux distribution
Hacking
See CONTRIBUTING.md
Related Projects
Here are some notable projects in the Flatpak ecosystem:
- Flatseal: An app for managing permissions of Flatpak apps without using the CLI
- Flat-manager: A tool for managing Flatpak repositories