Reproducible builds: WASM

Author: kaloudis

.gitignore

@@ -19,5 +19,8 @@ wasm-client.wasm
 # Mobile build output
 build/
 
+# Reproducible build output
+reproducible-builds/
+
 # Misc
 *.DS_Store

Dockerfile-wasm

@@ -0,0 +1,14 @@
+#Get golang 1.17.3-buster as a base image
+FROM golang:1.17.3-buster@sha256:ee3a388a872237ddb600de3ab9512e73df0043f8878f0f355baeb5b723ef16ec as builder
+
+#Define the working directory in the container
+WORKDIR /app
+
+#Copy all files from root into the container
+COPY . ./
+
+#Use go mod tidy to handle dependencies
+RUN go mod tidy
+
+#Run the make task
+RUN make wasm

Makefile

@@ -20,7 +20,7 @@ GOLIST := go list $(PKG)/... | grep -v '/vendor/'
 XARGS := xargs -L 1
 
 LDFLAGS := -s -w -buildid=
-LDFLAGS_MOBILE := -ldflags "$(call make_ldflags, ${tags}, -s -w)"
+LDFLAGS_MOBILE := -ldflags "$(call make_ldflags, ${tags}, -s -w -buildid=)"
 
 RM := rm -f
 CP := cp
@@ -66,7 +66,7 @@ build:
 wasm:
 	# The appengine build tag is needed because of the jessevdk/go-flags library
 	# that has some OS specific terminal code that doesn't compile to WASM.
-	cd cmd/wasm-client; GOOS=js GOARCH=wasm go build -trimpath -ldflags="$(LDFLAGS)" -tags="$(RPC_TAGS)" -v -o wasm-client.wasm .
+	cd cmd/wasm-client; CGO_ENABLED=0 GOOS=js GOARCH=wasm go build -trimpath -ldflags="$(LDFLAGS)" -tags="$(RPC_TAGS)" -v -o wasm-client.wasm .
 	$(CP) cmd/wasm-client/wasm-client.wasm example/wasm-client.wasm
 
 apple:
@@ -87,10 +87,45 @@ macos:
 android:
 	@$(call print, "Building Android library ($(ANDROID_BUILD)).")
 	mkdir -p $(ANDROID_BUILD_DIR)
-	GOOS=js $(GOMOBILE_BIN) bind -target=android -tags="mobile $(DEV_TAGS) $(RPC_TAGS)" -androidapi 21 $(LDFLAGS_MOBILE) -v -o $(ANDROID_BUILD) $(MOBILE_PKG)
+	CGO_ENABLED=0 GO386=softfloat GOOS=js $(GOMOBILE_BIN) bind -target=android -tags="mobile $(DEV_TAGS) $(RPC_TAGS)" -androidapi 21 $(LDFLAGS_MOBILE) -v -o $(ANDROID_BUILD) -trimpath $(MOBILE_PKG)
 
 mobile: ios android
 
+repro-wasm:
+	#Build the repro-wasm image
+	docker build -f Dockerfile-wasm -t repro-wasm-image --no-cache .
+
+	#Run the repro-wasm-image in a new container called repro-wasm
+	docker run --name repro-wasm  repro-wasm-image
+
+	#Copy the compiled WASM file to the host machine
+	mkdir -p reproducible-builds
+	docker cp repro-wasm:/app/cmd/wasm-client/wasm-client.wasm ./reproducible-builds/
+	
+	#Remove the repro-wasm container
+	docker rm repro-wasm
+
+	#Remove the repro-wasm-image
+	docker image rm repro-wasm-image
+
+repro-android:
+	#Build the repro-android image
+	docker build -f Dockerfile-android -t repro-android-image --no-cache .
+
+	#Run the repro-android-image in a new container called repro-android
+	docker run --name repro-android repro-android-image
+
+	#Copy the built Android library files to the host machine
+	mkdir -p reproducible-builds/android
+	docker cp repro-android:/gomobile/src/github.com/lightninglabs/lightning-node-connect/build/android/lnc-mobile.aar ./reproducible-builds/android
+	docker cp repro-android:/gomobile/src/github.com/lightninglabs/lightning-node-connect/build/android/lnc-mobile-sources.jar ./reproducible-builds/android
+	
+	#Remove the repro-android container
+	docker rm repro-android
+
+	#Remove the repro-android-image
+	docker image rm repro-android-image
+
 # =======
 # TESTING
 # =======