feat: 添加图片压缩优化

This commit is contained in:
lirtual 2024-12-20 11:49:53 +08:00
parent a6c2231c36
commit dbf1cb8818
3 changed files with 703 additions and 0 deletions

568
package-lock.json generated
View File

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"node_modules/global-directory": {
"version": "4.0.1",
"resolved": "https://registry.npmjs.org/global-directory/-/global-directory-4.0.1.tgz",
@ -4128,6 +4639,13 @@
"node": ">=10.13.0"
}
},
"node_modules/is-arrayish": {
"version": "0.3.2",
"resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.3.2.tgz",
"integrity": "sha512-eVRqCvVlZbuw3GrM63ovNSNAeA1K16kaR/LRY/92w0zxQ5/1YzwblUX652i4Xs9RwAGjW9d9y6X88t8OaAJfWQ==",
"dev": true,
"license": "MIT"
},
"node_modules/is-core-module": {
"version": "2.15.0",
"resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.15.0.tgz",
@ -5874,6 +6392,46 @@
"resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
"integrity": "sha512-MATJdZp8sLqDl/68LfQmbP8zKPLQNV6BIZoIgrscFDQ+RsvK/BxeDQOgyxKKoh0y/8h3BqVFnCqQ/gd+reiIXA=="
},
"node_modules/sharp": {
"version": "0.33.5",
"resolved": "https://registry.npmjs.org/sharp/-/sharp-0.33.5.tgz",
"integrity": "sha512-haPVm1EkS9pgvHrQ/F3Xy+hgcuMV0Wm9vfIBSiwZ05k+xgb0PkBQpGsAA/oWdDobNaZTH5ppvHtzCFbnSEwHVw==",
"dev": true,
"hasInstallScript": true,
"license": "Apache-2.0",
"dependencies": {
"color": "^4.2.3",
"detect-libc": "^2.0.3",
"semver": "^7.6.3"
},
"engines": {
"node": "^18.17.0 || ^20.3.0 || >=21.0.0"
},
"funding": {
"url": "https://opencollective.com/libvips"
},
"optionalDependencies": {
"@img/sharp-darwin-arm64": "0.33.5",
"@img/sharp-darwin-x64": "0.33.5",
"@img/sharp-libvips-darwin-arm64": "1.0.4",
"@img/sharp-libvips-darwin-x64": "1.0.4",
"@img/sharp-libvips-linux-arm": "1.0.5",
"@img/sharp-libvips-linux-arm64": "1.0.4",
"@img/sharp-libvips-linux-s390x": "1.0.4",
"@img/sharp-libvips-linux-x64": "1.0.4",
"@img/sharp-libvips-linuxmusl-arm64": "1.0.4",
"@img/sharp-libvips-linuxmusl-x64": "1.0.4",
"@img/sharp-linux-arm": "0.33.5",
"@img/sharp-linux-arm64": "0.33.5",
"@img/sharp-linux-s390x": "0.33.5",
"@img/sharp-linux-x64": "0.33.5",
"@img/sharp-linuxmusl-arm64": "0.33.5",
"@img/sharp-linuxmusl-x64": "0.33.5",
"@img/sharp-wasm32": "0.33.5",
"@img/sharp-win32-ia32": "0.33.5",
"@img/sharp-win32-x64": "0.33.5"
}
},
"node_modules/shebang-command": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
@ -5927,6 +6485,16 @@
"url": "https://github.com/sponsors/isaacs"
}
},
"node_modules/simple-swizzle": {
"version": "0.2.2",
"resolved": "https://registry.npmjs.org/simple-swizzle/-/simple-swizzle-0.2.2.tgz",
"integrity": "sha512-JA//kQgZtbuY83m+xT+tXJkmJncGMTFT+C+g2h2R9uxkYIrE2yy9sgmcLhCnw57/WSD+Eh3J97FPEDFnbXnDUg==",
"dev": true,
"license": "MIT",
"dependencies": {
"is-arrayish": "^0.3.1"
}
},
"node_modules/sisteransi": {
"version": "1.0.5",
"resolved": "https://registry.npmjs.org/sisteransi/-/sisteransi-1.0.5.tgz",

View File

@ -35,11 +35,13 @@
"dependency-cruiser": "^16.3.10",
"eslint": "^9.7.0",
"eslint-plugin-import-x": "^4.2.1",
"glob": "^11.0.0",
"inquirer": "^11.0.2",
"jsdom": "^24.0.0",
"lefthook": "^1.6.12",
"msw": "^2.4.9",
"phaser3spectorjs": "^0.0.8",
"sharp": "^0.33.5",
"typedoc": "^0.26.4",
"typescript": "^5.5.3",
"typescript-eslint": "^8.0.0-alpha.54",

133
scripts/optimize-images.js Normal file
View File

@ -0,0 +1,133 @@
import sharp from 'sharp';
import { promises as fs } from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';
import { glob } from 'glob';
import os from 'os';
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const sourceDir = 'public/images';
const outputDir = 'dist/images';
// 统计数据
let totalFiles = 0;
let totalOriginalSize = 0;
let totalOptimizedSize = 0;
let successCount = 0;
let failCount = 0;
let startTime = Date.now();
// 文件大小阈值(字节)
const SMALL_FILE_THRESHOLD = 5 * 1024; // 5KB
async function optimizeImage(inputPath) {
const relativePath = path.relative(sourceDir, inputPath);
const outputPath = path.join(outputDir, relativePath);
const outputDirPath = path.dirname(outputPath);
await fs.mkdir(outputDirPath, { recursive: true });
try {
const inputStats = await fs.stat(inputPath);
const isSmallFile = inputStats.size < SMALL_FILE_THRESHOLD;
// 根据文件大小选择不同的压缩策略
let sharpInstance = sharp(inputPath);
if (isSmallFile) {
// 小文件使用无损压缩策略
await sharpInstance
.png({
compressionLevel: 9,
effort: 10,
palette: false // 不使用调色板模式
})
.toFile(outputPath);
} else {
// 大文件使用有损压缩策略
await sharpInstance
.png({
quality: 80,
compressionLevel: 9,
palette: true,
colors: 256,
dither: 0.5,
effort: 10
})
.toFile(outputPath);
}
const outputStats = await fs.stat(outputPath);
const savings = ((inputStats.size - outputStats.size) / inputStats.size * 100).toFixed(2);
// 如果优化后文件更大,使用原始文件
if (outputStats.size > inputStats.size) {
await fs.copyFile(inputPath, outputPath);
console.log(`⚠️ ${relativePath} (使用原始文件)`);
} else {
console.log(`${relativePath}`);
}
// 更新统计数据
totalOriginalSize += inputStats.size;
totalOptimizedSize += Math.min(inputStats.size, outputStats.size);
successCount++;
console.log(` 原始大小: ${(inputStats.size / 1024).toFixed(2)}KB`);
console.log(` 优化大小: ${(Math.min(inputStats.size, outputStats.size) / 1024).toFixed(2)}KB`);
console.log(` 节省: ${((inputStats.size - Math.min(inputStats.size, outputStats.size)) / inputStats.size * 100).toFixed(2)}%\n`);
} catch (error) {
console.error(`✗ 处理 ${relativePath} 时出错:`, error);
failCount++;
}
}
function printReport() {
const endTime = Date.now();
const duration = ((endTime - startTime) / 1000).toFixed(2);
const totalSavings = ((totalOriginalSize - totalOptimizedSize) / totalOriginalSize * 100).toFixed(2);
console.log('\n========== 优化结果报告 ==========');
console.log(`处理总文件数: ${totalFiles}`);
console.log(`成功处理: ${successCount} 个文件`);
console.log(`处理失败: ${failCount} 个文件`);
console.log(`原始总大小: ${(totalOriginalSize / 1024 / 1024).toFixed(2)}MB`);
console.log(`优化后总大小: ${(totalOptimizedSize / 1024 / 1024).toFixed(2)}MB`);
console.log(`总体积减少: ${totalSavings}%`);
console.log(`处理耗时: ${duration}`);
console.log(`CPU核心数: ${os.cpus().length}`);
console.log('================================\n');
}
async function processImages() {
try {
// 清空输出目录
await fs.rm(outputDir, { recursive: true, force: true });
await fs.mkdir(outputDir, { recursive: true });
// 获取所有PNG文件
const files = await glob(path.join(sourceDir, '**/*.png'));
totalFiles = files.length;
console.log(`找到 ${files.length} 个PNG文件需要优化\n`);
// 使用工作池并行处理图片限制并发数为CPU核心数
const concurrency = os.cpus().length;
const chunks = [];
for (let i = 0; i < files.length; i += concurrency) {
chunks.push(files.slice(i, i + concurrency));
}
for (const chunk of chunks) {
await Promise.all(chunk.map(file => optimizeImage(file)));
}
printReport();
} catch (error) {
console.error('处理过程中发生错误:', error);
}
}
processImages();