Function applyChunksToContent

src/core/tools/apply-patch/apply.ts:123–142

(originalContent: string, filePath: string, chunks: UpdateFileChunk[])

 * @returns The new file content
 */
export function applyChunksToContent(originalContent: string, filePath: string, chunks: UpdateFileChunk[]): string {
	// Split content into lines
	let originalLines = originalContent.split("\n")

	// Drop trailing empty element that results from final newline
	// so that line counts match standard diff behavior
	if (originalLines.length > 0 && originalLines[originalLines.length - 1] === "") {
		originalLines = originalLines.slice(0, -1)
	}

	const replacements = computeReplacements(originalLines, filePath, chunks)
	let newLines = applyReplacements(originalLines, replacements)

	// Ensure file ends with newline
	if (newLines.length === 0 || newLines[newLines.length - 1] !== "") {
		newLines = [...newLines, ""]
	}

	return newLines.join("\n")
}

/**
 * Process a single hunk and return the file change.