We’re already allowing `/tmp` anyway, so this should be harmless,
and it fixes a regression in the default configuration caused by
moving the build directories out of `temp-dir`. (For instance, that
broke the Lix `guessOrInventPath.sockets` test.)
Note that removing `/tmp` breaks quite a few builds, so although it may
be a good idea in general it would require work on the Nixpkgs side.
Fixes: 749afbbe99
Change-Id: I6a6a69645f429bc50d4cb24283feda3d3091f534
Using `AllowDaemon::Disallow` here broke `ssh-ng://` remote builds in
multi‐user setups where the remote builder user does not have write
access to the store, now that the automatic store selection logic
has changed. Switch to the default behaviour for this path to fix that.
This causes `ssh-ng://` builds to use the daemon by default on the
remote end, even as `root`. I think this is desirable, as the previous
change already made `ssh://` behave this way, and the pitfalls of
local stores apply to remote builds too. For instance, there were
persistent `ulimit` issues on the NixOS Hydra macOS builders that were
resolved by forcing use of the daemon, and I believe the Linux builders
also go through the daemon these days due to using non‐`root` SSH
users. I believe that the `root` vs. non‐`root` difference is just
as confusing for remote builds as it is for local ones.
`ssh-ng://root@builder?remote-store=local` can be used to revert back
to the previous default if necessary.
Closes: #884
Fixes: 9a59106c17
Change-Id: I6a6a696410f46cd3f2f5a94073ea924ad45dc99c
This allows other functions to parameterize over it themselves. An
enum class is used to avoid API misuse.
Change-Id: I6a6a6964d2b5ad47ae5ea9eb11af9b6373ce2141
Emily