Add Arm64 Build (#36)

.github/workflows/ci.yml

@@ -4,16 +4,18 @@ on: push
 jobs:
   weasyprint-build:
     name: Build WeasyPrint
-    runs-on: ubuntu-latest
     strategy:
       matrix:
         version: ["3.12", "3.13"]
+        arch: ["x86_64", "arm64"]
+    runs-on: ${{ matrix.arch == 'x86_64' && 'ubuntu-24.04' || 'ubuntu-24.04-arm' }}
     env:
       RUNTIME: ${{ matrix.version }}
+      ARCH: ${{ matrix.arch }}
     steps:
       - uses: actions/checkout@v4
       - name: Build Layer 
-        run: make build/weasyprint-layer-python${{ matrix.version }}.zip
+        run: make build/weasyprint-layer-python${{ matrix.version }}-${{ matrix.arch }}.zip
       - name: Test weasyprint
         run: |
           mkdir output
@@ -22,11 +24,11 @@ jobs:
           make test.print.report
           rm -rf build/opt
         env:
-          TEST_FILENAME: build/test-report-${{ matrix.version }}.pdf 
+          TEST_FILENAME: build/test-report-${{ matrix.version }}-${{ matrix.arch }}.pdf 
       - name: Upload Build
         uses: actions/upload-artifact@v4
         with:
-          name: WeasyPrint Layer Build ${{ matrix.version }}
+          name: WeasyPrint Layer Build ${{ matrix.version }} ${{ matrix.arch }}
           path: build
   weasyprint-release:
     name: Release WeasyPrint

Makefile

@@ -1,24 +1,30 @@
-PLATFORM ?= linux/amd64
 RUNTIME ?= 3.12
+ARCH ?= x86_64
 TEST_FILENAME ?= report.pdf
 DOCKER_RUN=docker run --rm --platform=${PLATFORM} -e RUNTIME_VERSION=${RUNTIME}
 
+ifeq ($(ARCH), arm64)
+ PLATFORM=linux/arm64
+else
+ PLATFORM=linux/amd64
+endif
+
 .PHONY: stack.deploy.weasyprint clean test.start.container test.print.report
 
-all: build/weasyprint-layer-python$(RUNTIME).zip
+all: build/weasyprint-layer-python$(RUNTIME)-$(ARCH).zip
 
-build/weasyprint-layer-python$(RUNTIME).zip: weasyprint/layer_builder.sh \
+build/weasyprint-layer-python$(RUNTIME)-$(ARCH).zip: weasyprint/layer_builder.sh \
     build/fonts-layer.zip \
     | _build
 	${DOCKER_RUN} \
 	    -v `pwd`/weasyprint:/out \
 			--entrypoint "/out/layer_builder.sh" \
 	    -t public.ecr.aws/lambda/python:${RUNTIME} 
-	mv -f ./weasyprint/layer.zip ./build/weasyprint-layer-python${RUNTIME}-no-fonts.zip
+	mv -f ./weasyprint/layer.zip ./build/weasyprint-layer-python${RUNTIME}-${ARCH}-no-fonts.zip
 	cd build && rm -rf ./opt && mkdir opt \
 	    && unzip fonts-layer.zip -d opt \
-	    && unzip weasyprint-layer-python${RUNTIME}-no-fonts.zip -d opt \
-	    && cd opt && zip -r9 ../weasyprint-layer-python${RUNTIME}.zip .
+	    && unzip weasyprint-layer-python${RUNTIME}-${ARCH}-no-fonts.zip -d opt \
+	    && cd opt && zip -r9 ../weasyprint-layer-python${RUNTIME}-${ARCH}.zip .
 
 build/fonts-layer.zip: fonts/layer_builder.sh | _build
 	${DOCKER_RUN} \
@@ -42,11 +48,10 @@ stack.deploy:
 	cd cdk-stacks && npm install && npm run build
 	cdk deploy --app ./cdk-stacks/bin/app.js --stack PrintStack --parameters uploadBucketName=${BUCKET}
 
-test.start.container: build/weasyprint-layer-python$(RUNTIME).zip
+test.start.container: build/weasyprint-layer-python$(RUNTIME)-$(ARCH).zip
 	${DOCKER_RUN} \
-	    -e GDK_PIXBUF_MODULE_FILE="/opt/lib/loaders.cache" \
 	    -e FONTCONFIG_PATH="/opt/fonts" \
-	    -e XDG_DATA_DIRS="/opt/lib" \
+	    -e LD_LIBRARY_PATH="/opt/lib" \
 	    -v `pwd`/weasyprint:/var/task \
 	    -v `pwd`/build/opt:/opt \
 			-p 9000:8080 \

README.md

@@ -3,7 +3,7 @@
 This is a collection of AWS Lambda layers and functions to render pdf documents and images from HTML.
 
 Download layers from release section or build them yourself (requires: make, docker, zip, unzip, jq).
-The layers support only Amazon Linux 2023 runtimes, eg. python3.12.
+The layers support only Amazon Linux 2023 runtimes, eg. python3.12 and python3.13.
 
 ## Fonts
 
@@ -24,7 +24,7 @@ Run `make build/ghostscript-layer.zip` to build the layer.
 
 Build the layer with:
 
-    $ make build/weasyprint-layer-python3.12.zip
+    $ make build/weasyprint-layer-python3.12-x86_64.zip
 
 To test your build:
 
@@ -42,19 +42,18 @@ Deploy layer:
     $ aws lambda publish-layer-version \
         --region <region> \
         --layer-name <name> \
-        --zip-file fileb://build/weasyprint-layer-python3.12.zip
+        --zip-file fileb://build/weasyprint-layer-python3.12-x86_64.zip
 
 Lambda must be configured with these env vars:
 
-    GDK_PIXBUF_MODULE_FILE="/opt/lib/loaders.cache"
+    LD_LIBRARY_PATH="/opt/lib"
     FONTCONFIG_PATH="/opt/fonts"
-    XDG_DATA_DIRS="/opt/lib"
 
-If you are using the release zip files ensure your Lambda instruction set architecture is set to `x86_64` and not `arm64`.
+arm64 is also supported! Use the arm64 zip under Releases or build using "ARCH=arm64 make build/weasyprint-layer-python3.12-arm64.zip"
 
 To build a layer for python3.13 runime use:
 
-    RUNTIME=3.13 make build/weasyprint-layer-python3.13.zip
+    RUNTIME=3.13 make build/weasyprint-layer-python3.13-x86_64.zip
 
 ### Docker Lambda
 

weasyprint/Makefile

@@ -1,8 +1,10 @@
-PLATFORM ?= linux/amd64
-ifeq ($(PLATFORM), linux/arm64)
+ARCH ?= x86_64
+ifeq ($(ARCH), arm64)
  RIE_BIN=aws-lambda-rie-arm64
+ PLATFORM=linux/arm64
 else
  RIE_BIN=aws-lambda-rie
+ PLATFORM=linux/amd64
 endif
 
 ${RIE_BIN}/aws-lambda-rie: