2020-10-12 23:51:23 +00:00
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#!/usr/bin/env bash
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source common.sh
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2021-09-30 23:57:07 +00:00
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# Globally enable the ca derivations experimental flag
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sed -i 's/experimental-features = .*/& ca-derivations ca-references/' "$NIX_CONF_DIR/nix.conf"
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2020-10-12 23:51:23 +00:00
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# In the corresponding nix file, we have two derivations: the first, named root,
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# is a normal recursive derivation, while the second, named dependent, has the
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# new outputHashMode "text". Note that in "dependent", we don't refer to the
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# build output of root, but only to the path of the drv file. For this reason,
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# we only need to:
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#
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# - instantiate the root derivation
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# - build the dependent derivation
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# - check that the path of the output coincides with that of the original derivation
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drv=$(nix-instantiate --experimental-features ca-derivations ./text-hashed-output.nix -A root)
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2023-02-28 17:46:00 +00:00
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nix show-derivation "$drv"
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2020-10-12 23:51:23 +00:00
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drvDep=$(nix-instantiate --experimental-features ca-derivations ./text-hashed-output.nix -A dependent)
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2023-02-28 17:46:00 +00:00
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nix show-derivation "$drvDep"
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2020-10-12 23:51:23 +00:00
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out1=$(nix-build --experimental-features ca-derivations ./text-hashed-output.nix -A dependent --no-out-link)
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2021-09-30 23:57:07 +00:00
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nix path-info $drv --derivation --json | jq
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nix path-info $out1 --derivation --json | jq
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2020-10-12 23:51:23 +00:00
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test $out1 == $drv
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