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nix/tests/functional/dyn-drv/build-built-drv.sh
John Ericson 57348b677b Restore dynamic derivations!
This method does *not* create a new type of goal. We instead just make
`DerivationGoal` more sophisticated, which is much easier to do now that
`DerivationBuildingGoal` has been split from it (and so many fields are
gone, or or local variables instead).

This avoids the need for a secondarily trampoline goal that interacted
poorly with `addWantedOutputs`. That, I hope, will mean the bugs from
before do not reappear.

There may in fact be a reason to introduce such a trampoline in the
future, but it would only happen in conjunction with getting rid of
`addWantedOutputs`.

Restores the functionality (and tests) that was reverted in
f4f28cdd0e.
2025-05-21 17:31:41 -04:00

26 lines
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#!/usr/bin/env bash
source common.sh
# In the corresponding nix file, we have two derivations: the first, named `hello`,
# is a normal recursive derivation, while the second, named dependent, has the
# new outputHashMode "text". Note that in "dependent", we don't refer to the
# build output of `hello`, but only to the path of the drv file. For this reason,
# we only need to:
#
# - instantiate `hello`
# - build `producingDrv`
# - check that the path of the output coincides with that of the original derivation
out1=$(nix build -f ./text-hashed-output.nix hello --no-link)
clearStore
drvDep=$(nix-instantiate ./text-hashed-output.nix -A producingDrv)
# Store layer needs bugfix
requireDaemonNewerThan "2.30pre20250515"
out2=$(nix build "${drvDep}^out^out" --no-link)
test $out1 == $out2