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source common.sh
clearStore
garbage1=$(nix add-to-store --name garbage1 ./nar-access.sh)
garbage2=$(nix add-to-store --name garbage2 ./nar-access.sh)
garbage3=$(nix add-to-store --name garbage3 ./nar-access.sh)
ls -l $garbage3
POSIXLY_CORRECT=1 du $garbage3
fake_free=$TEST_ROOT/fake-free
export _NIX_TEST_FREE_SPACE_FILE=$fake_free
echo 1100 > $fake_free
expr=$(cat <<EOF
with import ./config.nix; mkDerivation {
name = "gc-A";
buildCommand = ''
set -x
[[ \$(ls \$NIX_STORE/*-garbage? | wc -l) = 3 ]]
mkdir \$out
echo foo > \$out/bar
echo 1...
sleep 2
echo 200 > ${fake_free}.tmp1
mv ${fake_free}.tmp1 $fake_free
echo 2...
sleep 2
echo 3...
sleep 2
echo 4...
[[ \$(ls \$NIX_STORE/*-garbage? | wc -l) = 1 ]]
'';
}
EOF
)
expr2=$(cat <<EOF
with import ./config.nix; mkDerivation {
name = "gc-B";
buildCommand = ''
set -x
mkdir \$out
echo foo > \$out/bar
echo 1...
sleep 2
echo 200 > ${fake_free}.tmp2
mv ${fake_free}.tmp2 $fake_free
echo 2...
sleep 2
echo 3...
sleep 2
echo 4...
'';
}
EOF
)
nix build --impure -v -o $TEST_ROOT/result-A -L --expr "$expr" \
--min-free 1000 --max-free 2000 --min-free-check-interval 1 &
pid=$!
nix build --impure -v -o $TEST_ROOT/result-B -L --expr "$expr2" \
--min-free 1000 --max-free 2000 --min-free-check-interval 1
wait "$pid"
[[ foo = $(cat $TEST_ROOT/result-A/bar) ]]
[[ foo = $(cat $TEST_ROOT/result-B/bar) ]]
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