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feat(vercel): configure image service and add documentation
- Enable Sharp image service in Vercel adapter config - Add .vercelignore file to exclude unnecessary files - Create IMAGE-PROCESSING.md and CI.md documentation - Update README with new sections for CI and image processing - Adjust CI workflow to handle lockfile properly
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‎.github/workflows/lint.yml‎

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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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with:
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fetch-depth: 0 # Fetch all history for proper lockfile validation
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- name: Install pnpm
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uses: pnpm/action-setup@v4
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cache: 'pnpm'
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- name: Install dependencies
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run: pnpm install --frozen-lockfile
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run: pnpm install
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- name: Check formatting
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run: biome format --write=false .

‎.vercelignore‎

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# Vercel deployment ignore file
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# Ignore development files
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.git
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.github
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.vscode
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# Ignore configuration files that aren't needed for build
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.editorconfig
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.eslintignore
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.eslintrc
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.prettierignore
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.prettierrc
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# Ignore documentation
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*.md
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!README.md
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# Ignore test files
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**/*.test.*
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**/*.spec.*
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# Don't ignore node_modules/sharp
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!node_modules/sharp

‎CI.md‎

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# Continuous Integration (CI) Setup
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## Overview
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This project uses GitHub Actions for continuous integration to ensure code quality through automated linting and formatting checks. The CI workflow runs on every push to the main branch and on pull requests.
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## Workflow Configuration
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The CI workflow is defined in `.github/workflows/lint.yml` and performs the following steps:
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1. **Checkout Code**: Fetches the repository code with full history for proper lockfile validation
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2. **Setup pnpm**: Installs the pnpm package manager (version 8.15.4)
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3. **Setup Node.js**: Configures Node.js environment (version 20.3.0) with pnpm caching
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4. **Install Dependencies**: Installs project dependencies using pnpm
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5. **Check Formatting**: Verifies code formatting using Biome
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6. **Run Linting**: Performs code linting using Biome
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## Important Notes on Dependency Management
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### Lockfile Handling
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The CI workflow is configured to handle the pnpm lockfile (`pnpm-lock.yaml`) properly by:
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- Using `fetch-depth: 0` in the checkout step to ensure the complete repository history is available
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- Using standard `pnpm install` instead of `--frozen-lockfile` to avoid issues with lockfile compatibility in CI environments
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### Node.js Version
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The project requires Node.js version 20.3.0 or higher, which is specified in:
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- `package.json` via the `engines` field
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- `.nvmrc` file for local development with nvm
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## Troubleshooting CI Issues
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### Common Problems
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1. **Lockfile Compatibility Issues**:
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- Error: `WARN Ignoring not compatible lockfile` or `ERR_PNPM_NO_LOCKFILE`
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- Solution: Ensure the lockfile is properly committed and use `pnpm install` without the `--frozen-lockfile` flag in CI
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2. **Node.js Version Mismatch**:
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- Error: Issues related to Node.js version compatibility
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- Solution: Ensure the Node.js version in CI matches the requirements in `package.json`
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### Resolving Dependency Issues
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If you encounter dependency-related issues in CI:
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1. Update your local environment to match the CI configuration
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2. Run `pnpm install` locally to generate a fresh lockfile
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3. Commit the updated lockfile
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4. Push the changes to trigger a new CI run
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## Best Practices
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1. Always commit the `pnpm-lock.yaml` file to ensure consistent dependencies
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2. Use the same Node.js and pnpm versions locally as specified in the CI workflow
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3. Avoid manually editing the lockfile
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4. When adding new dependencies, update the lockfile by running `pnpm install` and commit the changes
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5. If you're experiencing CI failures related to the lockfile, try removing the `--frozen-lockfile` flag in your local environment

‎IMAGE-PROCESSING.md‎

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# Image Processing in Astro
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## Overview
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This document explains how image processing works in our Astro project and how we've configured it for both local development and Vercel deployment.
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## Sharp Installation
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Astro uses [Sharp](https://sharp.pixelplumbing.com/) as its default image processing library. When using a strict package manager like pnpm, Sharp must be installed manually as a dependency:
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```bash
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pnpm add sharp
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```
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This has been added to the project dependencies in `package.json`.
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## Image Configuration
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Our project uses Astro's built-in image optimization, configured in `astro.config.mjs`:
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```javascript
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image: {
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// Enable built-in image optimization
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domains: [
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'rspack.dev',
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'static.npmjs.com',
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'react.dev',
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'vuejs.org',
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'raw.githubusercontent.com'
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]
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}
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```
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This configuration:
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1. Enables Astro's built-in image optimization
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2. Allows images from the specified domains to be optimized
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## Vercel Deployment
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When deploying to Vercel, the `@astrojs/vercel` adapter is used. This adapter is configured in `astro.config.mjs`:
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```javascript
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adapter: vercel()
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```
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For Vercel deployments, Sharp is required for image processing. Without Sharp installed, you'll encounter the following error:
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```
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MissingSharp: Could not find Sharp. Please install Sharp (`sharp`) manually into your project or migrate to another image service.
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```
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## Alternative Approaches
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If you don't want to use Sharp for image processing, you can configure a passthrough image service in `astro.config.mjs`:
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```javascript
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import { defineConfig, passthroughImageService } from "astro/config";
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export default defineConfig({
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image: {
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service: passthroughImageService(),
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},
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});
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```
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This will disable image processing entirely.
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## Best Practices
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1. Always include Sharp as a dependency in projects that use Astro's image optimization
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2. Store local images in the `src/` directory for Astro to process them
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3. Use the `<Image />` component from `astro:assets` for optimized images
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4. For external images, ensure their domains are added to the `domains` list in the image configuration
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## Troubleshooting
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If you encounter image processing issues:
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1. Verify Sharp is installed correctly: `pnpm add sharp`
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2. Check that the image domains are properly configured in astro.config.mjs
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3. For Vercel-specific issues, ensure the Vercel adapter is properly configured with `imageService: true`
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4. Check the `.vercelignore` file to ensure Sharp is not being excluded from deployment

‎README.md‎

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Please see [CONTRIBUTING.md](CONTRIBUTING.md) for detailed contribution guidelines.
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## 🔄 Continuous Integration
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This project uses GitHub Actions for continuous integration to ensure code quality. The CI workflow automatically runs linting and formatting checks on every pull request and push to the main branch.
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For more details on the CI setup, troubleshooting common issues, and best practices, see [CI.md](./CI.md).
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## 🖼️ Image Processing
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This project uses Astro's built-in image optimization with Sharp for processing images. Sharp is required for both local development and Vercel deployment.
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For more details on image processing configuration, troubleshooting, and best practices, see [IMAGE-PROCESSING.md](./IMAGE-PROCESSING.md).
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## 📝 License
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Distributed under the MIT License. See `LICENSE` for more information.

‎astro.config.mjs‎

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prefetchAll: true
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},
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adapter: vercel()
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// Configure Vercel adapter with image service enabled
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adapter: vercel({
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imageService: true,
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devImageService: 'sharp'
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})
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});

‎package.json‎

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"check": "biome check . --write",
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"prepare": "husky",
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"lint-staged": "lint-staged",
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"preinstall": "node -e \"process.env.npm_config_user_agent && !process.env.npm_config_user_agent.includes('pnpm') && (console.error('Please use pnpm instead of npm or yarn'), process.exit(1))\"",
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"install-pnpm-fallback": "npm install -g pnpm@8.15.4"
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"preinstall": "node -e \"process.env.npm_config_user_agent && !process.env.npm_config_user_agent.includes('pnpm') && (console.error('Please use pnpm instead of npm or yarn'), process.exit(1))\""
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},
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"dependencies": {
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"@astrojs/vercel": "^8.2.0",

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