@git-diff-view/react NPM

A React UI Component to render `git diff` data, support `Split View` and `Unified View`, just like `GitHub` and `GitLab`.

Usage

There are two ways to use this component:

Use the DiffView component directly.

import { DiffView, DiffModeEnum } from "@git-diff-view/react";
import "@git-diff-view/react/styles/diff-view.css";

<DiffView<string>
  // use data
  data={{
    oldFile?: { fileName?: string | null; fileLang?: string | null; content?: string | null };
    newFile?: { fileName?: string | null; fileLang?: string | null; content?: string | null };
    hunks: string[];
  }}
  extendData={{oldFile: {10: {data: 'foo'}}, newFile: {20: {data: 'bar'}}}}
  renderExtendLine={({ data }) => ReactNode}
  diffViewFontSize={number}
  diffViewHighlight={boolean}
  diffViewMode={DiffModeEnum.Split | DiffModeEnum.Unified}
  diffViewWrap={boolean}
  diffViewAddWidget
  onAddWidgetClick={({ side, lineNumber }) => void}
  renderWidgetLine={({ onClose, side, lineNumber }) => ReactNode}
/>

Use the DiffView component with @git-diff-view/core/@git-diff-view/file

// with @git-diff-view/file
import { DiffFile, generateDiffFile } from "@git-diff-view/file";
const file = generateDiffFile(
  data?.oldFile?.fileName || "",
  data?.oldFile?.content || "",
  data?.newFile?.fileName || "",
  data?.newFile?.content || "",
  data?.oldFile?.fileLang || "",
  data?.newFile?.fileLang || ""
);
file.init();
file.buildSplitDiffLines();
file.buildUnifiedDiffLines();

// with @git-diff-view/core
import { DiffFile } from "@git-diff-view/core";
const file = new DiffFile(
  data?.oldFile?.fileName || "",
  data?.oldFile?.content || "",
  data?.newFile?.fileName || "",
  data?.newFile?.content || "",
  data?.hunks || [],
  data?.oldFile?.fileLang || "",
  data?.newFile?.fileLang || ""
);
file.init();
file.buildSplitDiffLines();
file.buildUnifiedDiffLines();

// use current data to render
<DiffView diffFile={file} {...props} />;
// or use the bundle data to render, eg: postMessage/httpRequest
const bundle = file.getBundle();
const diffFile = DiffFile.createInstance(data || {}, bundle);
<DiffView diffFile={diffFile} {...props} />;

Props

Props	Description
data	The diff data need to show, type: `{ oldFile: {fileName?: string, content?: string}, newFile: {fileName?: string, content?: string}, hunks: string[] }`, you can only pass hunks data, and the component will generate the oldFile and newFile data automatically
diffFile	the target data to render
renderWidgetLine	return a valid `react` element to show the widget, this element will render when you click the `addWidget` button in the diff view
renderExtendLine	return a valid `react` element to show the extend data
extendData	a list to store the extend data to show in the `Diff View`, type: {oldFile: {lineNumber: {data: any}}, newFile: {lineNumber: {data: any}}}
diffViewFontSize	the fontSize for the DiffView component, type: number
diffViewHighlight	enable syntax highlight, type: boolean
diffViewMode	the mode for the DiffView component, type: `DiffModeEnum.Split` or `DiffModeEnum.Unified`
diffViewWrap	enable code line auto wrap, type: boolean
diffViewAddWidget	enable `addWidget` button, type: boolean
onAddWidgetClick	when the `addWidget` button clicked, type: `({ side: "old" \| "new", lineNumber: number }) => void`