From 1f1d9fce5898bd37b6055d12c5967d1d301e1d9e Mon Sep 17 00:00:00 2001
From: Jessica Grebenschikov <Jessica.greben1+github@gmail.com>
Date: Wed, 20 Jan 2021 10:57:47 -0800
Subject: [PATCH] satellite/console/wasm: add test to confirm wasm size isnt
 growing

Change-Id: I975a9f8ac3f6b98cc213140fdd7a99557efe14c8
---
 Jenkinsfile.public        |  1 +
 Makefile                  |  5 +++++
 scripts/test-wasm-size.sh | 19 +++++++++++++++++++
 3 files changed, 25 insertions(+)
 create mode 100755 scripts/test-wasm-size.sh

diff --git a/Jenkinsfile.public b/Jenkinsfile.public
index 4c24993e7..51e99de05 100644
--- a/Jenkinsfile.public
+++ b/Jenkinsfile.public
@@ -57,6 +57,7 @@ pipeline {
                         sh 'golangci-lint --config /go/ci/.golangci.yml -j=2 run'
                         sh 'check-mod-tidy -mod .build/go.mod.orig'
                         sh 'make check-monitoring'
+                        sh 'make test-wasm-size'
                     }
                 }
 
diff --git a/Makefile b/Makefile
index d5ddd4102..4709bcdaa 100644
--- a/Makefile
+++ b/Makefile
@@ -129,6 +129,11 @@ check-monitoring: ## Check for locked monkit calls that have changed
 	|| (echo "Locked monkit metrics have been changed. Notify #data-science and run \`go run github.com/storj/ci/check-monitoring -out monkit.lock ./...\` to update monkit.lock file." \
 	&& exit 1)
 
+.PHONY: test-wasm-size
+test-wasm-size: ## Test that the built .wasm code has not increased in size
+	@echo "Running ${@}"
+	@./scripts/test-wasm-size.sh
+
 ##@ Build
 
 .PHONY: storagenode-console
diff --git a/scripts/test-wasm-size.sh b/scripts/test-wasm-size.sh
new file mode 100755
index 000000000..a63f2dcd7
--- /dev/null
+++ b/scripts/test-wasm-size.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -ueo pipefail
+set +x
+
+cleanup(){
+    rm main.wasm
+    echo "cleaned up test successfully"
+}
+trap cleanup EXIT
+
+cd satellite/console/wasm && pwd && GOOS=js GOARCH=wasm go build -o main.wasm .
+BUILD_SIZE=$(stat -c %s main.wasm)
+CURRENT_SIZE=10000000
+if [ $BUILD_SIZE -gt $CURRENT_SIZE ]; then
+    echo "Wasm size is too big, was $CURRENT_SIZE but now it is $BUILD_SIZE"
+    exit 1
+fi
+
+echo "Wasm size did not increase and it is $BUILD_SIZE (limit: $CURRENT_SIZE)"