Add compilation flags and check size in CI (#321)

* Comment

* Revert build-bpf

* Fix size

Author: guibescos

docker/Dockerfile

@@ -66,6 +66,7 @@ RUN ./pyth-client/scripts/patch-solana.sh
 
 # Build and test the oracle program.
 RUN cd pyth-client && ./scripts/build-bpf.sh .
+RUN cd pyth-client && ./scripts/check-size.sh
 # Run aggregation logic tests
 RUN cd pyth-client && ./scripts/run-aggregation-tests.sh
 RUN /bin/bash -l -c "pytest-3 --pyargs pyth"

scripts/build-bpf.sh

@@ -34,9 +34,9 @@ rm ./target/*-keypair.json
 #build Rust and link it with C
 cd "${PYTH_DIR}"
 cargo clean
-cargo test-bpf
+cargo-test-bpf
 cargo clean
-cargo build-bpf
+cargo-build-bpf -- -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort
 
 sha256sum ./target/**/*.so
 

scripts/check-size.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+#
+# While Solana doesn't support resizing programs, the oracle binary needs to be smaller than 81760 bytes
+ORACLE_SIZE=$(wc -c ./target/deploy/pyth_oracle.so | awk '{print $1}')
+if [ $ORACLE_SIZE -lt 81760 ]
+then
+    echo "Size of pyth_oracle.so is small enough to be deployed to mainnet."
+    echo $ORACLE_SIZE
+else
+    echo "Size of pyth_oracle.so is too big to be deployed to mainnet."
+    echo $ORACLE_SIZE
+    exit 1
+fi