From 5cd2ca5a6f1e7726ef9b9363548008b2321a5a9f Mon Sep 17 00:00:00 2001
From: Carlos Espa <carlos.espa@nearform.com>
Date: Sun, 26 Jan 2025 22:46:00 +0100
Subject: [PATCH] feat: allow sharp format options

---
 .changeset/warm-flowers-smell.md            |  5 +++++
 packages/astro/src/assets/services/sharp.ts | 24 +++++++++++++++++++--
 2 files changed, 27 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/warm-flowers-smell.md

diff --git a/.changeset/warm-flowers-smell.md b/.changeset/warm-flowers-smell.md
new file mode 100644
index 000000000000..2c35b984915c
--- /dev/null
+++ b/.changeset/warm-flowers-smell.md
@@ -0,0 +1,5 @@
+---
+'astro': minor
+---
+
+allow sharp format options
diff --git a/packages/astro/src/assets/services/sharp.ts b/packages/astro/src/assets/services/sharp.ts
index bbae39eb093a..a73927cba4ae 100644
--- a/packages/astro/src/assets/services/sharp.ts
+++ b/packages/astro/src/assets/services/sharp.ts
@@ -1,4 +1,12 @@
-import type { FitEnum, FormatEnum, SharpOptions } from 'sharp';
+import type {
+	AvifOptions,
+	FitEnum,
+	FormatEnum,
+	JpegOptions,
+	PngOptions,
+	SharpOptions,
+	WebpOptions,
+} from 'sharp';
 import { AstroError, AstroErrorData } from '../../core/errors/index.js';
 import type { ImageFit, ImageOutputFormat, ImageQualityPreset } from '../types.js';
 import {
@@ -8,11 +16,20 @@ import {
 	parseQuality,
 } from './service.js';
 
+export interface SharpFormatOptions {
+	jpeg?: JpegOptions;
+	jpg?: JpegOptions;
+	avif?: AvifOptions;
+	png?: PngOptions;
+	webp?: WebpOptions;
+}
+
 export interface SharpImageServiceConfig {
 	/**
 	 * The `limitInputPixels` option passed to Sharp. See https://sharp.pixelplumbing.com/api-constructor for more information
 	 */
 	limitInputPixels?: SharpOptions['limitInputPixels'];
+	formatConfig?: SharpFormatOptions;
 }
 
 let sharp: typeof import('sharp');
@@ -108,7 +125,10 @@ const sharpService: LocalImageService<SharpImageServiceConfig> = {
 				}
 			}
 
-			result.toFormat(transform.format as keyof FormatEnum, { quality: quality });
+			result.toFormat(transform.format as keyof FormatEnum, {
+				quality: quality,
+				...config.service.config.formatConfig?.[transform.format as keyof SharpFormatOptions],
+			});
 		}
 
 		const { data, info } = await result.toBuffer({ resolveWithObject: true });