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@yuhufe/wtool-vdiff

v0.0.11

Published

Monaco diff viewer as Vue 3 Web Component

Readme

@yuhufe/wtool-vdiff

Demo: https://defghy.github.io/web-toolkits/v-diff/

基于 Monaco 的框架无关 DiffViewer,可集成到 React、Vue、原生 JS 等前端项目。


特性

  • 框架无关 :通过 Web Component 封装,函数调用即可挂载
  • 双模式输入 :支持 diffPatch(unified diff)和 diffPair(文件对)
  • 自适应高度 :按变更行数计算编辑器高度,减少空白
  • 折叠未变更区域 :默认折叠无差异区域,保留变更上下文
  • 顶部工具栏 :提供文件名、增删行统计、viewed 标记和 raw 模式
  • 文件列表 Diff :通过文件数组生成可搜索的文件树,支持选择联动和虚拟滚动

安装

npm install @yuhufe/wtool-vdiff
# 或
pnpm add @yuhufe/wtool-vdiff

快速开始

方式一:diffPatch(unified diff)

import { createDiffViewer } from '@yuhufe/wtool-vdiff'

const viewer = createDiffViewer(document.getElementById('diff-container')!, {
  diffPatch: `--- a/src/index.ts
+++ b/src/index.ts
@@ -1,5 +1,6 @@
 import { foo } from './foo'
-const x = 1
+const x = 2
+const y = 3
 export { foo }`,
})

// 更新
viewer.update({ diffPatch: newPatch })

// 销毁
viewer.destroy()

方式二:diffPair(文件对)

import { createDiffViewer } from '@yuhufe/wtool-vdiff'

const viewer = createDiffViewer(document.getElementById('diff-container')!, {
  diffPair: [
    { filename: 'src/index.ts', content: 'const x = 1\nexport { foo }' },
    { filename: 'src/index.ts', content: 'const x = 2\nconst y = 3\nexport { foo }' },
  ],
  language: 'typescript',
})

文件列表 Diff

createDiffFiles 展示可搜索的文件树和虚拟滚动 Diff 列表,选择文件时自动滚动并高亮。

<div id="diff-files-container"></div>

<style>
  #diff-files-container {
    width: 100%;
    height: 560px;
    overflow: hidden;
  }
</style>
import { createDiffFiles, type DiffFile } from '@yuhufe/wtool-vdiff'

const diffFiles: DiffFile[] = [
  {
    diffPatch: `--- src/index.ts
+++ src/index.ts
@@ -1,2 +1,3 @@
 import { foo } from './foo'
-export { foo }
+const version = 2
+export { foo, version }`,
  },
  {
    diffPair: [
      {
        filename: 'src/utils/sum.ts',
        content: 'export const sum = (a: number, b: number) => a + b',
      },
      {
        filename: 'src/utils/sum.ts',
        content: 'export function sum(a: number, b: number) {\n  return a + b\n}',
      },
    ],
  },
]

const filesViewer = createDiffFiles(document.getElementById('diff-files-container')!, {
  diffFiles,
  viewerStyle: { maxHeight: '360px' },
})

// 销毁
filesViewer.destroy()

组件根据 fullPath 构建目录树。外层容器需设置明确高度,且每个文件的最终 fullPath 必须唯一。文件内容通过 diffPatchdiffPair 提供。

省略 fullPath 时,组件按以下顺序推导文件路径:

  1. 显式 fullPath
  2. diffPair 中修改后文件的 filename,其次为原文件
  3. diffPatch+++ 头部

diffPatch 中的文件名会原样保留,也可通过 fullPath 覆盖。无法确定路径时,组件会抛出带数组下标的 TypeError


loader 配置

库通过 @monaco-editor/loader 按需加载 Monaco。默认使用 jsDelivr CDN,生产环境建议本地加载。

方式一:自定义 CDN 路径

import { loader } from '@yuhufe/wtool-vdiff'

loader.config({
  paths: { vs: 'https://your-cdn.example.com/monaco-editor/0.53.0/min/vs' },
})

方式二:本地加载(Vite 推荐)

import * as monaco from 'monaco-editor'
import editorWorker from 'monaco-editor/esm/vs/editor/editor.worker?worker'
import tsWorker from 'monaco-editor/esm/vs/language/typescript/ts.worker?worker'
import jsonWorker from 'monaco-editor/esm/vs/language/json/json.worker?worker'
import cssWorker from 'monaco-editor/esm/vs/language/css/css.worker?worker'
import htmlWorker from 'monaco-editor/esm/vs/language/html/html.worker?worker'
import { loader } from '@yuhufe/wtool-vdiff'

self.MonacoEnvironment = {
  getWorker(_, label) {
    if (label === 'json') return new jsonWorker()
    if (label === 'css' || label === 'scss' || label === 'less') return new cssWorker()
    if (label === 'html' || label === 'handlebars' || label === 'razor') return new htmlWorker()
    if (label === 'typescript' || label === 'javascript') return new tsWorker()
    return new editorWorker()
  },
}

loader.config({ monaco })

请在首次调用 createDiffViewer 前配置 loader


API

createDiffViewer(target, props?)

挂载 DiffViewer。

| 参数 | 类型 | 必填 | 说明 | | -------- | ----------------- | ---- | -------- | | target | HTMLElement | ✅ | 挂载容器 | | props | DiffViewerProps | ❌ | 初始属性 |

返回值:DiffViewerInstance

| 方法 | 签名 | 说明 | | --------- | ------------------------------------------- | ------------ | | update | (props: Partial<DiffViewerProps>) => void | 更新 props | | destroy | () => void | 销毁并从 DOM 移除 |


createDiffFiles(target, props?)

挂载文件列表 Diff。

| 参数 | 类型 | 必填 | 说明 | | -------- | ---------------- | ---- | -------- | | target | HTMLElement | ✅ | 挂载容器 | | props | DiffFilesProps | ❌ | 初始属性 |

返回值:DiffFilesInstance

| 方法 | 签名 | 说明 | | --------- | ------------------------------------------ | ------------ | | update | (props: Partial<DiffFilesProps>) => void | 更新 props | | destroy | () => void | 销毁并从 DOM 移除 |

DiffFilesProps

| 属性 | 类型 | 默认值 | 说明 | | ------------- | ---------------------- | ------ | --------------------- | | diffFiles | DiffFile[] | [] | 文件数组 | | viewerStyle | WtoolDiffViewerStyle | {} | 单个 DiffViewer 的样式 |

DiffFile

| 属性 | 类型 | 必填 | 说明 | | ------------- | ------------------------------------------------- | ---- | -------------------------------------------------------- | | fullPath | string | ❌ | 文件完整路径;省略时根据 diffPairdiffPatch 推导 | | diffPatch | string | ❌ | Unified diff 字符串,与 diffPair 二选一 | | diffPair | { filename: string; content: string \| null }[] | ❌ | 原文件和修改后文件 |

FileTreeDiffFile 的废弃别名,建议迁移到 DiffFile


DiffViewerProps

| 属性 | 类型 | 默认值 | 说明 | | -------------- | ----------------------------------------- | ------------- | ----------------------------------------------------- | | diffPatch | string | '' | Unified diff 字符串,与 diffPair 二选一 | | diffPair | { filename: string; content: string }[] | [] | 原文件和修改后文件,与 diffPatch 二选一 | | language | string | 'plaintext' | Monaco 语言标识,如 'typescript''python' | | options | DiffEditorOptions | {} | 透传至 Monaco Diff Editor | | modelOptions | ModelOptions | {} | 透传至 Monaco 文本模型 | | viewerStyle | WtoolDiffViewerStyle | — | 外层尺寸 |


WtoolDiffViewerStyle

| 属性 | 类型 | 说明 | | ----------- | --------- | ------------------------------ | | width | string | 宽度,默认 100% | | height | string | 固定高度,优先于自适应高度 | | minHeight | string | 最小高度,默认 100px | | maxHeight | string | 最大高度,默认 250px | | viewed | boolean | 是否已读的初始值,默认 false | | rawed | boolean | 是否显示原始文件,默认 false |

尺寸支持 pxvh


DiffEditorOptions(Monaco 透传)

选项见 Monaco Editor 官方文档