nix-super/tests/functional/gc-runtime.sh

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#!/usr/bin/env bash
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source common.sh
case $system in
*linux*)
;;
*)
skipTest "Not running Linux";
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esac
set -m # enable job control, needed for kill
profiles="$NIX_STATE_DIR"/profiles
rm -rf "$profiles"
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nix-env -p "$profiles/test" -f ./gc-runtime.nix -i gc-runtime
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outPath=$(nix-env -p "$profiles/test" -q --no-name --out-path gc-runtime)
echo "$outPath"
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echo "backgrounding program..."
"$profiles"/test/program &
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sleep 2 # hack - wait for the program to get started
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child=$!
echo PID=$child
nix-env -p "$profiles/test" -e gc-runtime
nix-env -p "$profiles/test" --delete-generations old
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nix-store --gc
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kill -- -$child
if ! test -e "$outPath"; then
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echo "running program was garbage collected!"
exit 1
fi
exit 0