Add 5 pi extensions: pi-subagents, pi-crew, rpiv-pi, pi-interactive-shell, pi-intercom

extensions/pi-interactive-shell/pty-log.ts

@@ -0,0 +1,59 @@
+import { stripVTControlCharacters } from "node:util";
+
+export const MAX_RAW_OUTPUT_SIZE = 1024 * 1024;
+
+export function trimRawOutput(rawOutput: string, lastStreamPosition: number): { rawOutput: string; lastStreamPosition: number } {
+	if (rawOutput.length <= MAX_RAW_OUTPUT_SIZE) {
+		return { rawOutput, lastStreamPosition };
+	}
+	const keepSize = Math.floor(MAX_RAW_OUTPUT_SIZE / 2);
+	const trimAmount = rawOutput.length - keepSize;
+	return {
+		rawOutput: rawOutput.substring(trimAmount),
+		lastStreamPosition: Math.max(0, lastStreamPosition - trimAmount),
+	};
+}
+
+export function sliceLogOutput(text: string, options: { offset?: number; limit?: number; stripAnsi?: boolean } = {}): {
+	slice: string;
+	totalLines: number;
+	totalChars: number;
+	sliceLineCount: number;
+} {
+	let source = text;
+	if (options.stripAnsi !== false && source) {
+		source = stripVTControlCharacters(source);
+	}
+	if (!source) {
+		return { slice: "", totalLines: 0, totalChars: 0, sliceLineCount: 0 };
+	}
+
+	const normalized = source.replace(/\r\n/g, "\n");
+	const lines = normalized.split("\n");
+	if (lines.length > 0 && lines[lines.length - 1] === "") {
+		lines.pop();
+	}
+
+	const totalLines = lines.length;
+	const totalChars = source.length;
+	let start: number;
+	if (typeof options.offset === "number" && Number.isFinite(options.offset)) {
+		start = Math.max(0, Math.floor(options.offset));
+	} else if (options.limit !== undefined) {
+		const tailCount = Math.max(0, Math.floor(options.limit));
+		start = Math.max(totalLines - tailCount, 0);
+	} else {
+		start = 0;
+	}
+
+	const end = typeof options.limit === "number" && Number.isFinite(options.limit)
+		? start + Math.max(0, Math.floor(options.limit))
+		: undefined;
+	const selectedLines = lines.slice(start, end);
+	return {
+		slice: selectedLines.join("\n"),
+		totalLines,
+		totalChars,
+		sliceLineCount: selectedLines.length,
+	};
+}