Method update

src/integrations/editor/DiffViewProvider.ts:249–324

(accumulatedContent: string, isFinal: boolean)

	}

	async update(accumulatedContent: string, isFinal: boolean) {
		if (!this.relPath || !this.activeLineController || !this.fadedOverlayController) {
			throw new Error("Required values not set")
		}

		this.newContent = accumulatedContent
		const accumulatedLines = accumulatedContent.split("\n")

		if (!isFinal) {
			accumulatedLines.pop() // Remove the last partial line only if it's not the final update.
		}

		const diffEditor = this.activeDiffEditor
		const document = diffEditor?.document

		if (!diffEditor || !document) {
			throw new Error("User closed text editor, unable to edit file...")
		}

		// Place cursor at the beginning of the diff editor to keep it out of
		// the way of the stream animation, but do this without stealing focus
		const beginningOfDocument = new vscode.Position(0, 0)
		diffEditor.selection = new vscode.Selection(beginningOfDocument, beginningOfDocument)

		const endLine = accumulatedLines.length
		// Replace all content up to the current line with accumulated lines.
		const edit = new vscode.WorkspaceEdit()
		const rangeToReplace = new vscode.Range(0, 0, endLine, 0)
		const contentToReplace =
			accumulatedLines.slice(0, endLine).join("\n") + (accumulatedLines.length > 0 ? "\n" : "")
		edit.replace(document.uri, rangeToReplace, this.stripAllBOMs(contentToReplace))
		await vscode.workspace.applyEdit(edit)
		// Update decorations.
		this.activeLineController.setActiveLine(endLine)
		this.fadedOverlayController.updateOverlayAfterLine(endLine, document.lineCount)
		// Scroll to the current line without stealing focus.
		const ranges = this.activeDiffEditor?.visibleRanges
		if (ranges && ranges.length > 0 && ranges[0].start.line < endLine && ranges[0].end.line > endLine) {
			this.scrollEditorToLine(endLine)
		}

		// Update the streamedLines with the new accumulated content.
		this.streamedLines = accumulatedLines

		if (isFinal) {
			// Handle any remaining lines if the new content is shorter than the
			// original.
			if (this.streamedLines.length < document.lineCount) {
				const edit = new vscode.WorkspaceEdit()
				edit.delete(document.uri, new vscode.Range(this.streamedLines.length, 0, document.lineCount, 0))
				await vscode.workspace.applyEdit(edit)
			}

			// Preserve empty last line if original content had one.
			const hasEmptyLastLine = this.originalContent?.endsWith("\n")

			if (hasEmptyLastLine && !accumulatedContent.endsWith("\n")) {
				accumulatedContent += "\n"