feat: initial commit

.devcontainer/devcontainer.json

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+{
+  "name": "Pillow Lambda Layer Builder",
+  "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
+
+  "features": {
+    "ghcr.io/devcontainers/features/git:1": {},
+    "ghcr.io/devcontainers/features/github-cli:1": {},
+    "ghcr.io/devcontainers/features/python:1": {
+      "version": "3.13"
+    }
+  },
+
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-python.python",
+        "ms-python.pylint",
+        "ms-python.black-formatter",
+        "ms-toolsai.jupyter",
+        "redhat.vscode-yaml",
+        "ms-vscode.makefile-tools"
+      ],
+      "settings": {
+        "python.defaultInterpreterPath": "/usr/local/bin/python",
+        "python.linting.enabled": true,
+        "python.linting.pylintEnabled": true,
+        "python.formatting.provider": "black",
+        "python.testing.pytestEnabled": true,
+        "files.exclude": {
+          "**/build": true,
+          "**/__pycache__": true,
+          "**/*.pyc": true
+        }
+      }
+    }
+  },
+
+  "postCreateCommand": "apt-get update && apt-get install -y python3.9 python3.9-dev python3.10 python3.10-dev python3.11 python3.11-dev python3.12 python3.12-dev && chmod +x scripts/*.sh && ./scripts/build-multi-version.sh && ./scripts/test-multi-version.sh",
+
+  "postStartCommand": "echo 'Pillow Lambda Layer Builder ready! Layer built and tested successfully.'",
+
+  "remoteUser": "root",
+
+  "runArgs": [
+    "--init"
+  ]
+}

.devcontainer/setup.sh

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+#!/bin/bash
+set -e
+
+echo "Setting up Pillow Lambda Layer Builder environment..."
+
+# Update package lists
+apt-get update
+
+# Install software-properties-common for adding PPAs
+apt-get install -y software-properties-common
+
+# Add deadsnakes PPA for multiple Python versions
+add-apt-repository ppa:deadsnakes/ppa -y
+
+# Update package lists again
+apt-get update
+
+# Install all Python versions and their development packages
+echo "Installing Python versions..."
+apt-get install -y \
+    python3.9 python3.9-dev python3.9-distutils \
+    python3.10 python3.10-dev python3.10-distutils \
+    python3.11 python3.11-dev python3.11-distutils \
+    python3.12 python3.12-dev \
+    python3.13 python3.13-dev
+
+# Install pip and ensure it's available for all Python versions
+echo "Setting up pip for all Python versions..."
+apt-get install -y python3-pip python3.9-venv python3.10-venv python3.11-venv python3.12-venv python3.13-venv
+python3 -m pip install --upgrade pip
+
+# Install pip for each Python version using get-pip.py
+echo "Installing pip for each Python version..."
+curl -sS https://bootstrap.pypa.io/get-pip.py -o get-pip.py
+python3.9 get-pip.py --ignore-installed --break-system-packages
+python3.10 get-pip.py --ignore-installed --break-system-packages
+python3.11 get-pip.py --ignore-installed --break-system-packages
+python3.12 get-pip.py --ignore-installed --break-system-packages
+python3.13 get-pip.py --ignore-installed --break-system-packages
+rm get-pip.py
+
+# Make scripts executable
+chmod +x aws-lambda-pillow-layer/scripts/*.sh
+
+echo "Environment setup complete!"

.github/workflows/ci.yml

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+name: Pillow Lambda Layer CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    name: Build and Test Python ${{ matrix.python-version }}
+    permissions:
+      contents: read
+      actions: write
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            gcc g++ make zlib1g-dev libjpeg-dev libpng-dev \
+            libtiff-dev libwebp-dev libfreetype6-dev liblcms2-dev \
+            libffi-dev libopenjp2-7-dev libharfbuzz-dev libfribidi-dev \
+            libxcb1-dev
+
+      - name: Build Pillow layer
+        run: |
+          chmod +x scripts/*.sh
+          ./scripts/build.sh
+
+      - name: Test Pillow layer
+        run: |
+          ./scripts/test.sh
+
+      - name: Upload layer artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: pillow-layer-python${{ matrix.python-version }}
+          path: build/pillow-layer.zip
+
+  release:
+    runs-on: ubuntu-latest
+    needs: build-and-test
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    permissions:
+      contents: write
+      actions: read
+      id-token: write
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Download layer artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: pillow-layer-python${{ matrix.python-version }}
+          path: layers/
+
+      - name: Create Release for Python ${{ matrix.python-version }}
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: python${{ matrix.python-version }}-v${{ github.run_number }}
+          name: Pillow Layer Python ${{ matrix.python-version }} v${{ github.run_number }}
+          body: |
+            ## Pillow Lambda Layer for Python ${{ matrix.python-version }}
+
+            This release contains a production-ready Pillow layer for AWS Lambda with Python ${{ matrix.python-version }}.
+
+            ### Features
+            - Pillow 10.4.0
+            - Python ${{ matrix.python-version }} support
+            - x86_64 architecture
+            - Optimized for Lambda runtime
+            - Supports JPG, PNG, GIF, WEBP formats
+
+            ### Usage
+            Upload the `pillow-layer.zip` file to AWS Lambda as a layer.
+
+            ### Layer Details
+            - **Size**: ~3.6MB (compressed)
+            - **Runtime**: Python ${{ matrix.python-version }}
+            - **Architecture**: x86_64
+          files: layers/pillow-layer.zip
+          draft: false
+          prerelease: false

.github/workflows/commitmsg-conform.yml

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+name: Commit Message Conformance
+on:
+  pull_request: {}
+permissions:
+  statuses: write
+  checks: write
+  contents: read
+  pull-requests: read
+jobs:
+  commitmsg-conform:
+    uses: actionsforge/actions/.github/workflows/commitmsg-conform.yml@main

.github/workflows/markdown-lint.yml

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+name: Markdown Lint
+
+on:
+  pull_request: {}
+
+permissions:
+  statuses: write
+  checks: write
+  contents: read
+  pull-requests: read
+
+jobs:
+  markdown-lint:
+    uses: actionsforge/actions/.github/workflows/markdown-lint.yml@main

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual environments
+venv/
+env/
+ENV/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# AWS
+.aws/
+
+# Layer build artifacts
+build/
+*.zip
+
+# Test files
+test_pillow.py
+test.jpg
+test.png
+test.webp
+
+# Temporary files
+*.tmp
+*.temp