toonn 9555918151 nix-darwin: simplify activation script invocation ... In #587, kalbasit introduce the `-i` flag so the sudo invocation would run in an environment with `HOME` set to the correct value for the target user. This was necessary to be able to set up multiple users without interfering with the invoking user's `HOME`. In #807, I switched to `-s` instead because I managed to get an invalid shell set for my user by switching `useUserPackages` from `true` to `false` which changes the location where packages are installed and `~/.nix-profile/bin/<my-shell>` was no longer valid. This was based on the assumption that `SHELL` would be set to some sensible value by Home Manager at this point. This turned out to be false as reported in #2900. In 0ced6d6d (this commit's parent at this time), I explicitly set `SHELL` to `${pkgs.bash}` so it is definitely set to a good shell when invoking the activation script. However, #807 broke activation for multiple users, the original motivation for `-i`, as reported in #2856. I fixed this in #2857 by additionally passing `--set-home`. Further discussion with rycee in #3040 made me realize that the activation script already has a good Nix store bash shebang. So all the problems have been caused, not by the shell used for the activation script but by sudo trying to use a different shell at all. `-i` uses the shell set in the `passwd` file for the target user, but this can become invalid as happened to me. `-s` uses either `SHELL` if it's defined or the invoking user's shell as set in the `passwd` file. By explicitly setting this to a shell provided by Nix we make sure we're not trying to launch a non-existent shell. However, we're clearly already running in an existing shell and because of `--set-home` we can activate other users properly so there's not actually any need to try to have sudo start a different shell first, it just adds an extra process that then goes on to run the activation script with a good bash because of the shebang. Dropping `-s` altogether and keeping `--set-home` should avoid all of these issues.		2022-09-19 22:02:58 +02:00
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default.nix	nix-darwin: simplify activation script invocation	2022-09-19 22:02:58 +02:00