24 lines
1.1 KiB
JavaScript
24 lines
1.1 KiB
JavaScript
export function reversePatch(structuredPatch) {
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if (Array.isArray(structuredPatch)) {
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// (See comment in unixToWin for why we need the pointless-looking anonymous function here)
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return structuredPatch.map(patch => reversePatch(patch)).reverse();
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}
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return Object.assign(Object.assign({}, structuredPatch), { oldFileName: structuredPatch.newFileName, oldHeader: structuredPatch.newHeader, newFileName: structuredPatch.oldFileName, newHeader: structuredPatch.oldHeader, hunks: structuredPatch.hunks.map(hunk => {
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return {
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oldLines: hunk.newLines,
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oldStart: hunk.newStart,
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newLines: hunk.oldLines,
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newStart: hunk.oldStart,
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lines: hunk.lines.map(l => {
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if (l.startsWith('-')) {
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return `+${l.slice(1)}`;
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}
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if (l.startsWith('+')) {
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return `-${l.slice(1)}`;
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}
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return l;
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})
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};
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}) });
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}
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