This flag allows the user to optionally exclude
switch-to-confguration.pl from toplevel.
This is interesting for appliance images where you don't want to re-build
the system. This flag is called `rebuildable` because the standard
interface to do this is `nixos-rebuild` which will not work anymore with
this change.
We should sometimes restart the units rather than reloading them so the
changes are actually applied. / and /nix are explicitly excluded because
there was some very old issue where these were unmounted. I don't think
this will affect many people since most people use fstab mounts instead
but I plan to adapt this behavior for fstab mounts as well in the future
(once I wrote a test for the fstab thingies).
This avoids creating a build-time reference on `boot.kernelParams` if
the configuration does not use a kernel, i.e., `boot.kernel.enable` is
set to `false`.
These variables were previously used by the activation script
build commands, but are now embedded into those commands for
to improve reusability for an upcoming addition.
This helps with understanding the code.
We might make this not depend on environment variables later.
systemBuilderArgs is a form of global state, which isn't helpful.
This patch fixes "Argument list too long" build failure when passing a
list of store paths to system.extraDependencies that exceeds Linux'
MAX_ARG_STRLEN limit of 128 KiB. With the shortest possible derivation
names (one byte), the 128 KiB limit is equivalent to about 2850
derivations. With longer derivations names, the limit is hit earlier.
Fix this restriction.
Note that this does not add to the `forbiddenDependenciesRegex`
code because that code check should be unaffected as it only checks
output dependencies, not build dependencies.
Build deps are added after that check, if those are enabled in the
first place.
When `nixpkgs.hostPlatform` != `nixpkgs.buildPlatform`, building the
top-level attribute fails since the bootspec portion of the system
builder tries to reference the host platform's `jq`. Change this to
reference the build platform's `jq`.
This removes the feature preview warning, enable by default bootspec,
adds a validation flag to prevent Go to go into build-time closure.
This will break all downstream users of bootspec as those changes are
not backward-compatible.
This option allows adding the build closure of the system to its
runtime closure, enabling fully-offline rebuilds (as long as no new
packages are added).
We separate the different steps (injecting the toplevel and injecting
the specialisations) so that it's easy to document what each snippet is
actually doing.
