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source common.sh
mkdir -p $TEST_ROOT/cache2 $TEST_ROOT/patches
RESULT=$TEST_ROOT/result
# Build version 1 and 2 of the "foo" package.
$NIX_BIN_DIR/nix-push --copy $TEST_ROOT/cache2 $TEST_ROOT/manifest1 \
$($nixbuild -o $RESULT binary-patching.nix --arg version 1)
out2=$($nixbuild -o $RESULT binary-patching.nix --arg version 2)
$NIX_BIN_DIR/nix-push --copy $TEST_ROOT/cache2 $TEST_ROOT/manifest2 $out2
rm $RESULT
# Generate a binary patch.
$NIX_BIN_DIR/generate-patches.pl $TEST_ROOT/cache2 $TEST_ROOT/patches \
file://$TEST_ROOT/patches $TEST_ROOT/manifest1 $TEST_ROOT/manifest2
grep -q "patch {" $TEST_ROOT/manifest2
# Get rid of version 2.
$nixstore --delete $out2
! test -e $out2
# Pull the manifest containing the patch.
clearManifests
$NIX_BIN_DIR/nix-pull file://$TEST_ROOT/manifest2
# To make sure that we're using the patch, delete the full NARs.
rm -f $TEST_ROOT/cache2/*
# Now rebuild it. This should use the patch generated above.
$nixbuild -o $RESULT binary-patching.nix --arg version 2
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