Added ARM support

Author: Umkus

.github/workflows/docker-workflow.yml

@@ -9,6 +9,7 @@ on:
       - master
   schedule:
     - cron: '0 0 * * *'
+  workflow_dispatch:
 
 jobs:
   build:
@@ -36,14 +37,7 @@ jobs:
           git show-ref --tags --quiet --verify -- "refs/tags/$sharp_version" || release_exists="false"
           echo "release_exists=$release_exists" >> $GITHUB_OUTPUT
       - name: Build
-        id: docker_build
-        uses: docker/build-push-action@v4
-        with:
-          context: .
-          file: ./Dockerfile
-          tags: amazon-linux-sharp-layer:dev
-      - name: Copy artifacts
-        run: docker run -v "${{ github.workspace }}/dist":/dist amazon-linux-sharp-layer:dev
+        run: npm ci --arch=x64 --platform=linux
       - name: Create release
         uses: svenstaro/upload-release-action@v2
         with:

README.md

@@ -1,34 +1,26 @@
 # AWS Sharp layer
-This AWS lambda layer contains a pre-built [sharp](https://www.npmjs.com/package/sharp) npm library.
-It is optimized for the most frugal space usage possible.
+This AWS lambda layer contains a pre-built [sharp](https://www.npmjs.com/package/sharp) npm library, so that you could "just use" it in your lambda code:
 
-# Getting
-A pre-built layer zip file is available on the [Releases page](../../releases), alongside the size of the layer.
+```javascript
+import sharp from 'sharp'
+// ...
+```
 
-# Building
+It holds only necessary files to minimize its weight (16Mb).
+It also supports all currently supported AWS lambda node runtimes (>=`nodejs14.x`) and architectures (`x86_64` and `arm64`).
 
-## Dependencies
-* Docker
+# Getting
+A pre-built layer zip file is available on the [Releases page](../../releases).
 
-## Steps
-1. Clone the repo: 
-    ```shell script
-    git clone git@github.com:Umkus/lambda-layer-sharp.git
-    cd lambda-layer-sharp/
-    ```
-1. Install dependencies:
-    ```shell script
-    docker run -v "$PWD":/var/task --entrypoint npm public.ecr.aws/lambda/nodejs:18 --no-audit --progress=false --arch=x64 --platform=linux ci
-    ```
-1. Build the layer:
+You can import it into your AWS account throught the Lambda console or with the following command:
     ```shell script
-    docker run -v "$PWD":/var/task --entrypoint node public.ecr.aws/lambda/nodejs:18 ./node_modules/webpack/bin/webpack.js
-    ```
-1. Perform a smoke-test:
-    ```shell script
-    docker run -w /var/task/dist/nodejs -v "$PWD":/var/task --entrypoint node public.ecr.aws/lambda/nodejs:18 -e "console.log(require('sharp'))"
-    ```
-1. Import created layer into your AWS account:
-    ```shell script
-    aws lambda publish-layer-version --layer-name sharp --description "Sharp layer" --license-info "Apache License 2.0" --zip-file fileb://dist/sharp-layer.zip --compatible-runtimes nodejs14.x nodejs16.x nodejs18.x
+    aws lambda publish-layer-version --layer-name sharp --description "Sharp layer" --license-info "Apache License 2.0" --zip-file fileb://dist/sharp-layer.zip --compatible-runtimes nodejs14.x nodejs16.x nodejs18.x --compatible-architectures x86_64 arm64
     ```
+
+# Building
+Install dependencies (this will wipe your existing `node_modules/` directory):
+```shell script
+npm ci --arch=x64 --platform=linux
+```
+
+Build will be performed automatically upon deps installation.

package-lock.json

@@ -14,6 +14,11 @@
   "dependencies": {
     "sharp": "^0.31.3"
   },
+  "scripts": {
+    "postinstall": "npm run install-arm && npm run build",
+    "install-arm": "npm install --prefix /tmp/sharp --arch=arm64 --platform=linux sharp && cp -R /tmp/sharp/node_modules/sharp node_modules/",
+    "build": "node ./node_modules/webpack/bin/webpack.js"
+  },
   "engines": {
     "node": ">=14"
   },

package.json

@@ -45,5 +45,6 @@ module.exports = {
   },
   externals: {
     './sharp-linux-x64.node': './build/Release/sharp-linux-x64.node',
+    './sharp-linux-arm64v8.node': './build/Release/sharp-linux-arm64v8.node',
   },
 };