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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -89,6 +89,8 @@ feature: | |
| crossorigin="anonymous" | ||
| async> | ||
| </script> | ||
| search: | ||
| enable: true | ||
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| i18n: | ||
| default: zh-CN | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,144 @@ | ||
| const fs = require('fs'); | ||
| const path = require('path'); | ||
| const { isFeatureEnabled } = require('./utils'); | ||
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| class SearchIndexBuilder { | ||
| constructor(config, pages, getNavigation) { | ||
| this.config = config; | ||
| this.pages = pages; | ||
| this.getNavigation = getNavigation; | ||
| this.baseUrl = config?.site?.baseUrl || ''; | ||
| this.searchIndex = new Map(); // 使用 Map 存储，键为 langCode:url | ||
| } | ||
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| // 获取语言代码 | ||
| getLanguageCode(lang) { | ||
| return typeof lang === 'object' ? lang.key : lang; | ||
| } | ||
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| // 处理导航项 | ||
| processNavItem(item, lang) { | ||
| if (!item) return; | ||
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| if (item.href) { | ||
| // 将 /.html 转换为 /index.html | ||
| const normalizedHref = item.href === '/.html' ? '/index.html' : item.href; | ||
| const metadata = this.pages.get(normalizedHref) || {}; | ||
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| const langCode = this.getLanguageCode(lang); | ||
| const key = `${langCode}:${normalizedHref}`; | ||
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| // 处理文件内容 | ||
| const filePath = this.getFilePath(normalizedHref); | ||
| if (filePath && fs.existsSync(filePath)) { | ||
| const content = fs.readFileSync(filePath, 'utf-8'); | ||
| const { title, processedContent } = this.parseContent(content, filePath); | ||
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| // 构建搜索项 | ||
| const searchItem = { | ||
| title, | ||
| content: processedContent, | ||
| url: this.buildUrl(normalizedHref, lang), | ||
| lang: langCode, | ||
| lastModified: metadata?.gitInfo?.revision?.lastModifiedTime | ||
| }; | ||
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| this.searchIndex.set(key, searchItem); | ||
| } | ||
| } | ||
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| // 递归处理子项 | ||
| if (Array.isArray(item.items)) { | ||
| item.items.forEach(subItem => this.processNavItem(subItem, lang)); | ||
| } | ||
| } | ||
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| // 从 URL 获取文件路径 | ||
| getFilePath(url) { | ||
| // 移除开头的斜杠并将 .html 转换为 .md | ||
| const relativePath = url.replace(/^\//, '').replace(/\.html$/, '.md'); | ||
| return path.join(this.config.sourcePath, relativePath); | ||
| } | ||
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| // 构建完整的 URL | ||
| buildUrl(url, lang) { | ||
| const isI18nEnabled = isFeatureEnabled(this.config, 'i18n'); | ||
| const langCode = this.getLanguageCode(lang); | ||
| const normalizedUrl = url.startsWith('/') ? url.substring(1) : url; | ||
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| // 当启用国际化时才添加语言前缀 | ||
| const fullUrl = isI18nEnabled && langCode | ||
| ? `${langCode}/${normalizedUrl}` | ||
| : normalizedUrl; | ||
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| return this.baseUrl | ||
| ? `${this.baseUrl}/${fullUrl}` | ||
| : `/${fullUrl}`; | ||
| } | ||
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| // 解析文件内容 | ||
| parseContent(content, filePath) { | ||
| // 解析 frontmatter | ||
| const frontMatterMatch = content.match(/^---\n([\s\S]*?)\n---/); | ||
| let title = ''; | ||
| let processedContent = content; | ||
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| if (frontMatterMatch) { | ||
| const frontMatter = frontMatterMatch[1]; | ||
| const titleMatch = frontMatter.match(/title:\s*(.+)/); | ||
| if (titleMatch) { | ||
| title = titleMatch[1].trim(); | ||
| } | ||
| processedContent = content.slice(frontMatterMatch[0].length).trim(); | ||
| } | ||
|
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| // 如果没有在 frontmatter 中找到标题，尝试从内容中提取 | ||
| if (!title) { | ||
| const titleMatch = processedContent.match(/^#\s+(.*)$/m); | ||
| title = titleMatch ? titleMatch[1] : path.basename(filePath, '.md'); | ||
| } | ||
|
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| // 清理 Markdown 语法 | ||
| processedContent = this.cleanMarkdown(processedContent); | ||
|
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| return { title, processedContent }; | ||
| } | ||
|
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| // 清理 Markdown 语法 | ||
| cleanMarkdown(content) { | ||
| return content | ||
| .replace(/^#.*$/gm, '') // 移除标题 | ||
| .replace(/\[([^\]]+)\]\([^)]+\)/g, '$1') // 转换链接为纯文本 | ||
| .replace(/[*_~`]/g, '') // 移除强调语法 | ||
| .replace(/```[\s\S]*?```/g, '') // 移除代码块 | ||
| .replace(/^\s*[-+*]\s+/gm, '') // 移除列表标记 | ||
| .replace(/^\s*\d+\.\s+/gm, '') // 移除有序列表标记 | ||
| .replace(/\n{2,}/g, '\n') // 合并多个换行 | ||
| .replace(/\s+/g, ' ') // 合并多个空格 | ||
| .trim(); | ||
| } | ||
|
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| // 生成搜索索引 | ||
| generate() { | ||
| const isI18nEnabled = isFeatureEnabled(this.config, 'i18n'); | ||
| const languages = isI18nEnabled | ||
| ? (this.config.languages || [this.config.i18n?.default || 'en']) | ||
| : ['']; // 空字符串表示没有语言前缀 | ||
|
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| // 收集每种语言的内容 | ||
| for (const lang of languages) { | ||
| const navItems = this.getNavigation(lang) || []; | ||
| navItems.forEach(item => this.processNavItem(item, lang)); | ||
| } | ||
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| // 转换为数组并写入文件 | ||
| const searchData = Array.from(this.searchIndex.values()); | ||
| const outputPath = path.join(this.config.outputPath, 'search-index.json'); | ||
| fs.writeFileSync(outputPath, JSON.stringify(searchData, null, 2), 'utf8'); | ||
| console.log('✓ 生成搜索索引完成'); | ||
|
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| return searchData; | ||
| } | ||
| } | ||
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| module.exports = SearchIndexBuilder; |
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