lix/tests/gc.sh

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storeExpr=$($TOP/src/nix-instantiate/nix-instantiate dependencies.nix)
outPath=$($TOP/src/nix-store/nix-store -rvv "$storeExpr")
# Set a GC root.
ln -s $outPath "$NIX_LOCALSTATE_DIR"/nix/gcroots/foo
$NIX_BIN_DIR/nix-collect-garbage
# Check that the root and its dependencies haven't been deleted.
cat $outPath/foobar
cat $outPath/input-2/bar
# Check that the derivation has been GC'd.
if cat $storeExpr > /dev/null; then false; fi