b826c2d7a9
- Add highlightDiff utility React component for diff rendering - Add CSS styles for diff-add (green), diff-del (red), diff-hunk (blue) line highlighting - Integrate highlightDiff in TaskChangesTab for inline diffs - Integrate highlightDiff in ChangedFilesModal for file diffs - Add unit tests for highlightDiff utility
43 lines
1.4 KiB
TypeScript
43 lines
1.4 KiB
TypeScript
import React from "react";
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/**
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* Highlights diff output by wrapping each line in a <span> with appropriate CSS classes.
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*
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* - Lines starting with `+` (but not `+++`) → class `diff-add`
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* - Lines starting with `-` (but not `---`) → class `diff-del`
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* - Lines starting with `@@` → class `diff-hunk`
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* - Context lines and other diff headers → no special class
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*
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* @param diff - The raw diff string to highlight
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* @returns An array of React nodes with appropriate span wrappers
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*/
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export function highlightDiff(diff: string): React.ReactNode[] {
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const lines = diff.split("\n");
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return lines.map((line, index) => {
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// Determine the class for this line based on its prefix
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let className = "";
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if (line.startsWith("+") && !line.startsWith("+++")) {
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className = "diff-add";
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} else if (line.startsWith("-") && !line.startsWith("---")) {
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className = "diff-del";
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} else if (line.startsWith("@@")) {
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className = "diff-hunk";
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}
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// Wrap in a span if we have a class, otherwise return the line as-is
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if (className) {
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return (
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<span key={index} className={className}>
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{`${line}\n`}
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</span>
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);
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}
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// For lines without special classes, we still need to add the newline
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// We use a fragment to avoid unnecessary wrapper elements
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return <React.Fragment key={index}>{`${line}\n`}</React.Fragment>;
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});
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}
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