Reorganize file structure: core/, utils/, modes/interactive/components/, modes/interactive/theme/

packages/coding-agent/src/core/tools/bash.ts

@@ -0,0 +1,191 @@
+import { randomBytes } from "node:crypto";
+import { createWriteStream } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import type { AgentTool } from "@mariozechner/pi-ai";
+import { Type } from "@sinclair/typebox";
+import { spawn } from "child_process";
+import { getShellConfig, killProcessTree } from "../../utils/shell.js";
+import { DEFAULT_MAX_BYTES, DEFAULT_MAX_LINES, formatSize, type TruncationResult, truncateTail } from "./truncate.js";
+
+/**
+ * Generate a unique temp file path for bash output
+ */
+function getTempFilePath(): string {
+	const id = randomBytes(8).toString("hex");
+	return join(tmpdir(), `pi-bash-${id}.log`);
+}
+
+const bashSchema = Type.Object({
+	command: Type.String({ description: "Bash command to execute" }),
+	timeout: Type.Optional(Type.Number({ description: "Timeout in seconds (optional, no default timeout)" })),
+});
+
+interface BashToolDetails {
+	truncation?: TruncationResult;
+	fullOutputPath?: string;
+}
+
+export const bashTool: AgentTool<typeof bashSchema> = {
+	name: "bash",
+	label: "bash",
+	description: `Execute a bash command in the current working directory. Returns stdout and stderr. Output is truncated to last ${DEFAULT_MAX_LINES} lines or ${DEFAULT_MAX_BYTES / 1024}KB (whichever is hit first). If truncated, full output is saved to a temp file. Optionally provide a timeout in seconds.`,
+	parameters: bashSchema,
+	execute: async (
+		_toolCallId: string,
+		{ command, timeout }: { command: string; timeout?: number },
+		signal?: AbortSignal,
+	) => {
+		return new Promise((resolve, reject) => {
+			const { shell, args } = getShellConfig();
+			const child = spawn(shell, [...args, command], {
+				detached: true,
+				stdio: ["ignore", "pipe", "pipe"],
+			});
+
+			// We'll stream to a temp file if output gets large
+			let tempFilePath: string | undefined;
+			let tempFileStream: ReturnType<typeof createWriteStream> | undefined;
+			let totalBytes = 0;
+
+			// Keep a rolling buffer of the last chunk for tail truncation
+			const chunks: Buffer[] = [];
+			let chunksBytes = 0;
+			// Keep more than we need so we have enough for truncation
+			const maxChunksBytes = DEFAULT_MAX_BYTES * 2;
+
+			let timedOut = false;
+
+			// Set timeout if provided
+			let timeoutHandle: NodeJS.Timeout | undefined;
+			if (timeout !== undefined && timeout > 0) {
+				timeoutHandle = setTimeout(() => {
+					timedOut = true;
+					onAbort();
+				}, timeout * 1000);
+			}
+
+			const handleData = (data: Buffer) => {
+				totalBytes += data.length;
+
+				// Start writing to temp file once we exceed the threshold
+				if (totalBytes > DEFAULT_MAX_BYTES && !tempFilePath) {
+					tempFilePath = getTempFilePath();
+					tempFileStream = createWriteStream(tempFilePath);
+					// Write all buffered chunks to the file
+					for (const chunk of chunks) {
+						tempFileStream.write(chunk);
+					}
+				}
+
+				// Write to temp file if we have one
+				if (tempFileStream) {
+					tempFileStream.write(data);
+				}
+
+				// Keep rolling buffer of recent data
+				chunks.push(data);
+				chunksBytes += data.length;
+
+				// Trim old chunks if buffer is too large
+				while (chunksBytes > maxChunksBytes && chunks.length > 1) {
+					const removed = chunks.shift()!;
+					chunksBytes -= removed.length;
+				}
+			};
+
+			// Collect stdout and stderr together
+			if (child.stdout) {
+				child.stdout.on("data", handleData);
+			}
+			if (child.stderr) {
+				child.stderr.on("data", handleData);
+			}
+
+			// Handle process exit
+			child.on("close", (code) => {
+				if (timeoutHandle) {
+					clearTimeout(timeoutHandle);
+				}
+				if (signal) {
+					signal.removeEventListener("abort", onAbort);
+				}
+
+				// Close temp file stream
+				if (tempFileStream) {
+					tempFileStream.end();
+				}
+
+				// Combine all buffered chunks
+				const fullBuffer = Buffer.concat(chunks);
+				const fullOutput = fullBuffer.toString("utf-8");
+
+				if (signal?.aborted) {
+					let output = fullOutput;
+					if (output) output += "\n\n";
+					output += "Command aborted";
+					reject(new Error(output));
+					return;
+				}
+
+				if (timedOut) {
+					let output = fullOutput;
+					if (output) output += "\n\n";
+					output += `Command timed out after ${timeout} seconds`;
+					reject(new Error(output));
+					return;
+				}
+
+				// Apply tail truncation
+				const truncation = truncateTail(fullOutput);
+				let outputText = truncation.content || "(no output)";
+
+				// Build details with truncation info
+				let details: BashToolDetails | undefined;
+
+				if (truncation.truncated) {
+					details = {
+						truncation,
+						fullOutputPath: tempFilePath,
+					};
+
+					// Build actionable notice
+					const startLine = truncation.totalLines - truncation.outputLines + 1;
+					const endLine = truncation.totalLines;
+
+					if (truncation.lastLinePartial) {
+						// Edge case: last line alone > 30KB
+						const lastLineSize = formatSize(Buffer.byteLength(fullOutput.split("\n").pop() || "", "utf-8"));
+						outputText += `\n\n[Showing last ${formatSize(truncation.outputBytes)} of line ${endLine} (line is ${lastLineSize}). Full output: ${tempFilePath}]`;
+					} else if (truncation.truncatedBy === "lines") {
+						outputText += `\n\n[Showing lines ${startLine}-${endLine} of ${truncation.totalLines}. Full output: ${tempFilePath}]`;
+					} else {
+						outputText += `\n\n[Showing lines ${startLine}-${endLine} of ${truncation.totalLines} (${formatSize(DEFAULT_MAX_BYTES)} limit). Full output: ${tempFilePath}]`;
+					}
+				}
+
+				if (code !== 0 && code !== null) {
+					outputText += `\n\nCommand exited with code ${code}`;
+					reject(new Error(outputText));
+				} else {
+					resolve({ content: [{ type: "text", text: outputText }], details });
+				}
+			});
+
+			// Handle abort signal - kill entire process tree
+			const onAbort = () => {
+				if (child.pid) {
+					killProcessTree(child.pid);
+				}
+			};
+
+			if (signal) {
+				if (signal.aborted) {
+					onAbort();
+				} else {
+					signal.addEventListener("abort", onAbort, { once: true });
+				}
+			}
+		});
+	},
+};