Script to print sizes of all integration test contracts (use-ink#1851)

* Script to print sizes of all integration test contracts

* print only filename of wasm

* Process a single contract per script invocation

* Rename

* Remove extension

scripts/contract_size.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+SCRIPT_NAME="${BASH_SOURCE[0]}"
+MANIFEST_PATH=$1
+
+function usage {
+  cat << EOF
+Usage: ${SCRIPT_NAME} MANIFEST_PATH
+
+Build and print the contract name and size for the given manifest path, if it is a valid ink! contract project.
+Use with `find` (see EXAMPLES) to print the contract name and size for all ink! contracts in a directory.
+
+MANIFEST_PATH
+  Path to the Cargo.toml manifest file for a contract project
+
+EXAMPLES
+  ${SCRIPT_NAME} ./Cargo.toml
+  find ./integration-tests/ -name "Cargo.toml" -exec ${SCRIPT_NAME} {} \;
+
+EOF
+}
+
+if [ -z "$MANIFEST_PATH" ]; then
+  usage
+  exit 1
+fi
+
+BUILD_RESULT=$(cargo contract build --manifest-path "$MANIFEST_PATH" --release --quiet --output-json 2>/dev/null)
+
+if [ $? -eq 0 ]; then
+    # only print the contract name and size if the build was successful
+    DEST_WASM=$(echo "$BUILD_RESULT" | jq -r .dest_wasm)
+    CONTRACT_NAME=$(basename "$DEST_WASM" .wasm)
+    CONTRACT_SIZE=$(stat -c %s "$DEST_WASM")
+
+    echo "$CONTRACT_NAME" "$CONTRACT_SIZE"
+fi