mirror of
https://github.com/google-gemini/gemini-cli.git
synced 2026-03-13 23:51:16 -07:00
2db8fb20fa
Establishes core data contracts and state management for enhanced tool outputs. - Introduces GrepResult, ListDirectoryResult, and ReadManyFilesResult types. - Updates tools to return structured data instead of flat strings. - Preserves confirmation details and diff stats in terminal tool states. - Ensures backward compatibility in standard CLI views via safe type guards.
676 lines
21 KiB
TypeScript
676 lines
21 KiB
TypeScript
/**
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* @license
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* Copyright 2025 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import type { MessageBus } from '../confirmation-bus/message-bus.js';
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import fs from 'node:fs';
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import fsPromises from 'node:fs/promises';
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import path from 'node:path';
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import { spawn } from 'node:child_process';
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import { globStream } from 'glob';
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import type { ToolInvocation, ToolResult } from './tools.js';
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import { execStreaming } from '../utils/shell-utils.js';
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import {
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DEFAULT_TOTAL_MAX_MATCHES,
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DEFAULT_SEARCH_TIMEOUT_MS,
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} from './constants.js';
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import { BaseDeclarativeTool, BaseToolInvocation, Kind } from './tools.js';
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import { makeRelative, shortenPath } from '../utils/paths.js';
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import { getErrorMessage, isNodeError } from '../utils/errors.js';
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import { isGitRepository } from '../utils/gitUtils.js';
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import type { Config } from '../config/config.js';
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import type { FileExclusions } from '../utils/ignorePatterns.js';
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import { ToolErrorType } from './tool-error.js';
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import { GREP_TOOL_NAME } from './tool-names.js';
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import { debugLogger } from '../utils/debugLogger.js';
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// --- Interfaces ---
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/**
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* Parameters for the GrepTool
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*/
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export interface GrepToolParams {
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/**
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* The regular expression pattern to search for in file contents
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*/
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pattern: string;
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/**
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* The directory to search in (optional, defaults to current directory relative to root)
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*/
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dir_path?: string;
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/**
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* File pattern to include in the search (e.g. "*.js", "*.{ts,tsx}")
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*/
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include?: string;
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}
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/**
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* Result object for a single grep match
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*/
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interface GrepMatch {
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filePath: string;
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lineNumber: number;
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line: string;
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}
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class GrepToolInvocation extends BaseToolInvocation<
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GrepToolParams,
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ToolResult
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> {
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private readonly fileExclusions: FileExclusions;
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constructor(
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private readonly config: Config,
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params: GrepToolParams,
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messageBus: MessageBus,
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_toolName?: string,
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_toolDisplayName?: string,
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) {
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super(params, messageBus, _toolName, _toolDisplayName);
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this.fileExclusions = config.getFileExclusions();
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}
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/**
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* Parses a single line of grep-like output (git grep, system grep).
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* Expects format: filePath:lineNumber:lineContent
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* @param {string} line The line to parse.
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* @param {string} basePath The absolute directory for path resolution.
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* @returns {GrepMatch | null} Parsed match or null if malformed.
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*/
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private parseGrepLine(line: string, basePath: string): GrepMatch | null {
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if (!line.trim()) return null;
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// Use regex to locate the first occurrence of :<digits>:
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// This allows filenames to contain colons, as long as they don't look like :<digits>:
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// Note: This regex assumes filenames do not contain colons, or at least not followed by digits.
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const match = line.match(/^(.+?):(\d+):(.*)$/);
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if (!match) return null;
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const [, filePathRaw, lineNumberStr, lineContent] = match;
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const lineNumber = parseInt(lineNumberStr, 10);
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if (!isNaN(lineNumber)) {
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const absoluteFilePath = path.resolve(basePath, filePathRaw);
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const relativeCheck = path.relative(basePath, absoluteFilePath);
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if (
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relativeCheck === '..' ||
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relativeCheck.startsWith(`..${path.sep}`) ||
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path.isAbsolute(relativeCheck)
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) {
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return null;
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}
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const relativeFilePath = path.relative(basePath, absoluteFilePath);
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return {
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filePath: relativeFilePath || path.basename(absoluteFilePath),
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lineNumber,
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line: lineContent,
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};
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}
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return null;
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}
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async execute(signal: AbortSignal): Promise<ToolResult> {
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try {
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const workspaceContext = this.config.getWorkspaceContext();
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const pathParam = this.params.dir_path;
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let searchDirAbs: string | null = null;
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if (pathParam) {
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searchDirAbs = path.resolve(this.config.getTargetDir(), pathParam);
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const validationError = this.config.validatePathAccess(
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searchDirAbs,
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'read',
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);
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if (validationError) {
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return {
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llmContent: validationError,
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returnDisplay: 'Error: Path not in workspace.',
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error: {
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message: validationError,
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type: ToolErrorType.PATH_NOT_IN_WORKSPACE,
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},
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};
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}
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try {
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const stats = await fsPromises.stat(searchDirAbs);
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if (!stats.isDirectory()) {
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return {
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llmContent: `Path is not a directory: ${searchDirAbs}`,
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returnDisplay: 'Error: Path is not a directory.',
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error: {
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message: `Path is not a directory: ${searchDirAbs}`,
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type: ToolErrorType.PATH_IS_NOT_A_DIRECTORY,
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},
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};
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}
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} catch (error: unknown) {
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if (isNodeError(error) && error.code === 'ENOENT') {
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return {
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llmContent: `Path does not exist: ${searchDirAbs}`,
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returnDisplay: 'Error: Path does not exist.',
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error: {
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message: `Path does not exist: ${searchDirAbs}`,
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type: ToolErrorType.FILE_NOT_FOUND,
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},
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};
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}
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const errorMessage = getErrorMessage(error);
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return {
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llmContent: `Failed to access path stats for ${searchDirAbs}: ${errorMessage}`,
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returnDisplay: 'Error: Failed to access path.',
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error: {
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message: `Failed to access path stats for ${searchDirAbs}: ${errorMessage}`,
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type: ToolErrorType.GREP_EXECUTION_ERROR,
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},
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};
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}
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}
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const searchDirDisplay = pathParam || '.';
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// Determine which directories to search
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let searchDirectories: readonly string[];
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if (searchDirAbs === null) {
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// No path specified - search all workspace directories
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searchDirectories = workspaceContext.getDirectories();
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} else {
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// Specific path provided - search only that directory
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searchDirectories = [searchDirAbs];
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}
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// Collect matches from all search directories
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let allMatches: GrepMatch[] = [];
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const totalMaxMatches = DEFAULT_TOTAL_MAX_MATCHES;
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// Create a timeout controller to prevent indefinitely hanging searches
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const timeoutController = new AbortController();
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const timeoutId = setTimeout(() => {
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timeoutController.abort();
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}, DEFAULT_SEARCH_TIMEOUT_MS);
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// Link the passed signal to our timeout controller
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const onAbort = () => timeoutController.abort();
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if (signal.aborted) {
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onAbort();
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} else {
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signal.addEventListener('abort', onAbort, { once: true });
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}
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try {
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for (const searchDir of searchDirectories) {
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const remainingLimit = totalMaxMatches - allMatches.length;
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if (remainingLimit <= 0) break;
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const matches = await this.performGrepSearch({
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pattern: this.params.pattern,
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path: searchDir,
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include: this.params.include,
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maxMatches: remainingLimit,
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signal: timeoutController.signal,
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});
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// Add directory prefix if searching multiple directories
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if (searchDirectories.length > 1) {
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const dirName = path.basename(searchDir);
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matches.forEach((match) => {
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match.filePath = path.join(dirName, match.filePath);
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});
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}
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allMatches = allMatches.concat(matches);
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}
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} finally {
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clearTimeout(timeoutId);
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signal.removeEventListener('abort', onAbort);
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}
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let searchLocationDescription: string;
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if (searchDirAbs === null) {
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const numDirs = workspaceContext.getDirectories().length;
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searchLocationDescription =
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numDirs > 1
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? `across ${numDirs} workspace directories`
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: `in the workspace directory`;
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} else {
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searchLocationDescription = `in path "${searchDirDisplay}"`;
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}
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if (allMatches.length === 0) {
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const noMatchMsg = `No matches found for pattern "${this.params.pattern}" ${searchLocationDescription}${this.params.include ? ` (filter: "${this.params.include}")` : ''}.`;
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return { llmContent: noMatchMsg, returnDisplay: `No matches found` };
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}
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const wasTruncated = allMatches.length >= totalMaxMatches;
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// Group matches by file
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const matchesByFile = allMatches.reduce(
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(acc, match) => {
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const fileKey = match.filePath;
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if (!acc[fileKey]) {
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acc[fileKey] = [];
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}
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acc[fileKey].push(match);
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acc[fileKey].sort((a, b) => a.lineNumber - b.lineNumber);
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return acc;
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},
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{} as Record<string, GrepMatch[]>,
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);
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const matchCount = allMatches.length;
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const matchTerm = matchCount === 1 ? 'match' : 'matches';
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let llmContent = `Found ${matchCount} ${matchTerm} for pattern "${this.params.pattern}" ${searchLocationDescription}${this.params.include ? ` (filter: "${this.params.include}")` : ''}`;
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if (wasTruncated) {
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llmContent += ` (results limited to ${totalMaxMatches} matches for performance)`;
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}
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llmContent += `:\n---\n`;
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for (const filePath in matchesByFile) {
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llmContent += `File: ${filePath}
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`;
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matchesByFile[filePath].forEach((match) => {
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const trimmedLine = match.line.trim();
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llmContent += `L${match.lineNumber}: ${trimmedLine}\n`;
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});
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llmContent += '---\n';
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}
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return {
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llmContent: llmContent.trim(),
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returnDisplay: {
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summary: `Found ${matchCount} ${matchTerm}${wasTruncated ? ' (limited)' : ''}`,
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matches: allMatches.map((m) => ({
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filePath: m.filePath,
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lineNumber: m.lineNumber,
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line: m.line,
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})),
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},
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};
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} catch (error) {
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debugLogger.warn(`Error during GrepLogic execution: ${error}`);
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const errorMessage = getErrorMessage(error);
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return {
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llmContent: `Error during grep search operation: ${errorMessage}`,
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returnDisplay: `Error: ${errorMessage}`,
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error: {
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message: errorMessage,
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type: ToolErrorType.GREP_EXECUTION_ERROR,
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},
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};
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}
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}
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/**
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* Checks if a command is available in the system's PATH.
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* @param {string} command The command name (e.g., 'git', 'grep').
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* @returns {Promise<boolean>} True if the command is available, false otherwise.
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*/
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private isCommandAvailable(command: string): Promise<boolean> {
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return new Promise((resolve) => {
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const checkCommand = process.platform === 'win32' ? 'where' : 'command';
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const checkArgs =
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process.platform === 'win32' ? [command] : ['-v', command];
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try {
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const child = spawn(checkCommand, checkArgs, {
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stdio: 'ignore',
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shell: true,
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});
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child.on('close', (code) => resolve(code === 0));
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child.on('error', (err) => {
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debugLogger.debug(
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`[GrepTool] Failed to start process for '${command}':`,
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err.message,
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);
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resolve(false);
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});
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} catch {
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resolve(false);
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}
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});
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}
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/**
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* Performs the actual search using the prioritized strategies.
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* @param options Search options including pattern, absolute path, and include glob.
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* @returns A promise resolving to an array of match objects.
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*/
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private async performGrepSearch(options: {
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pattern: string;
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path: string; // Expects absolute path
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include?: string;
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maxMatches: number;
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signal: AbortSignal;
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}): Promise<GrepMatch[]> {
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const { pattern, path: absolutePath, include, maxMatches } = options;
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let strategyUsed = 'none';
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try {
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// --- Strategy 1: git grep ---
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const isGit = isGitRepository(absolutePath);
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const gitAvailable = isGit && (await this.isCommandAvailable('git'));
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if (gitAvailable) {
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strategyUsed = 'git grep';
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const gitArgs = [
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'grep',
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'--untracked',
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'-n',
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'-E',
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'--ignore-case',
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pattern,
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];
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if (include) {
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gitArgs.push('--', include);
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}
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try {
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const generator = execStreaming('git', gitArgs, {
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cwd: absolutePath,
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signal: options.signal,
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allowedExitCodes: [0, 1],
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});
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const results: GrepMatch[] = [];
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for await (const line of generator) {
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const match = this.parseGrepLine(line, absolutePath);
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if (match) {
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results.push(match);
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if (results.length >= maxMatches) {
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break;
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}
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}
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}
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return results;
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} catch (gitError: unknown) {
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debugLogger.debug(
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`GrepLogic: git grep failed: ${getErrorMessage(
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gitError,
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)}. Falling back...`,
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);
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}
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}
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// --- Strategy 2: System grep ---
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debugLogger.debug(
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'GrepLogic: System grep is being considered as fallback strategy.',
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);
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const grepAvailable = await this.isCommandAvailable('grep');
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if (grepAvailable) {
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strategyUsed = 'system grep';
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const grepArgs = ['-r', '-n', '-H', '-E', '-I'];
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// Extract directory names from exclusion patterns for grep --exclude-dir
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const globExcludes = this.fileExclusions.getGlobExcludes();
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const commonExcludes = globExcludes
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.map((pattern) => {
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let dir = pattern;
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if (dir.startsWith('**/')) {
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dir = dir.substring(3);
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}
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if (dir.endsWith('/**')) {
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dir = dir.slice(0, -3);
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} else if (dir.endsWith('/')) {
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dir = dir.slice(0, -1);
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}
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// Only consider patterns that are likely directories. This filters out file patterns.
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if (dir && !dir.includes('/') && !dir.includes('*')) {
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return dir;
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}
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return null;
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})
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.filter((dir): dir is string => !!dir);
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commonExcludes.forEach((dir) => grepArgs.push(`--exclude-dir=${dir}`));
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if (include) {
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grepArgs.push(`--include=${include}`);
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}
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grepArgs.push(pattern);
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grepArgs.push('.');
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const results: GrepMatch[] = [];
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try {
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const generator = execStreaming('grep', grepArgs, {
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cwd: absolutePath,
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signal: options.signal,
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allowedExitCodes: [0, 1],
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});
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for await (const line of generator) {
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const match = this.parseGrepLine(line, absolutePath);
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if (match) {
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results.push(match);
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if (results.length >= maxMatches) {
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break;
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}
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}
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}
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return results;
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} catch (grepError: unknown) {
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if (
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grepError instanceof Error &&
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/Permission denied|Is a directory/i.test(grepError.message)
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) {
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return results;
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}
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debugLogger.debug(
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`GrepLogic: System grep failed: ${getErrorMessage(
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grepError,
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)}. Falling back...`,
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);
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}
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}
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// --- Strategy 3: Pure JavaScript Fallback ---
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debugLogger.debug(
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'GrepLogic: Falling back to JavaScript grep implementation.',
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);
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strategyUsed = 'javascript fallback';
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const globPattern = include ? include : '**/*';
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const ignorePatterns = this.fileExclusions.getGlobExcludes();
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const filesStream = globStream(globPattern, {
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cwd: absolutePath,
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dot: true,
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ignore: ignorePatterns,
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absolute: true,
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nodir: true,
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signal: options.signal,
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});
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const regex = new RegExp(pattern, 'i');
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const allMatches: GrepMatch[] = [];
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for await (const filePath of filesStream) {
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if (allMatches.length >= maxMatches) break;
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const fileAbsolutePath = filePath;
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// security check
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const relativePath = path.relative(absolutePath, fileAbsolutePath);
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if (
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relativePath === '..' ||
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relativePath.startsWith(`..${path.sep}`) ||
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path.isAbsolute(relativePath)
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)
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continue;
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try {
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const content = await fsPromises.readFile(fileAbsolutePath, 'utf8');
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const lines = content.split(/\r?\n/);
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for (let index = 0; index < lines.length; index++) {
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const line = lines[index];
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if (regex.test(line)) {
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allMatches.push({
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filePath:
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path.relative(absolutePath, fileAbsolutePath) ||
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path.basename(fileAbsolutePath),
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lineNumber: index + 1,
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line,
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});
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if (allMatches.length >= maxMatches) break;
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}
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}
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} catch (readError: unknown) {
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// Ignore errors like permission denied or file gone during read
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if (!isNodeError(readError) || readError.code !== 'ENOENT') {
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debugLogger.debug(
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`GrepLogic: Could not read/process ${fileAbsolutePath}: ${getErrorMessage(
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readError,
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)}`,
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);
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}
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}
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}
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return allMatches;
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} catch (error: unknown) {
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debugLogger.warn(
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`GrepLogic: Error in performGrepSearch (Strategy: ${strategyUsed}): ${getErrorMessage(
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error,
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)}`,
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);
|
|
throw error; // Re-throw
|
|
}
|
|
}
|
|
|
|
getDescription(): string {
|
|
let description = `'${this.params.pattern}'`;
|
|
if (this.params.include) {
|
|
description += ` in ${this.params.include}`;
|
|
}
|
|
if (this.params.dir_path) {
|
|
const resolvedPath = path.resolve(
|
|
this.config.getTargetDir(),
|
|
this.params.dir_path,
|
|
);
|
|
if (
|
|
resolvedPath === this.config.getTargetDir() ||
|
|
this.params.dir_path === '.'
|
|
) {
|
|
description += ` within ./`;
|
|
} else {
|
|
const relativePath = makeRelative(
|
|
resolvedPath,
|
|
this.config.getTargetDir(),
|
|
);
|
|
description += ` within ${shortenPath(relativePath)}`;
|
|
}
|
|
} else {
|
|
// When no path is specified, indicate searching all workspace directories
|
|
const workspaceContext = this.config.getWorkspaceContext();
|
|
const directories = workspaceContext.getDirectories();
|
|
if (directories.length > 1) {
|
|
description += ` across all workspace directories`;
|
|
}
|
|
}
|
|
return description;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation of the Grep tool logic (moved from CLI)
|
|
*/
|
|
export class GrepTool extends BaseDeclarativeTool<GrepToolParams, ToolResult> {
|
|
static readonly Name = GREP_TOOL_NAME;
|
|
constructor(
|
|
private readonly config: Config,
|
|
messageBus: MessageBus,
|
|
) {
|
|
super(
|
|
GrepTool.Name,
|
|
'SearchText',
|
|
'Searches for a regular expression pattern within file contents. Max 100 matches.',
|
|
Kind.Search,
|
|
{
|
|
properties: {
|
|
pattern: {
|
|
description: `The regular expression (regex) pattern to search for within file contents (e.g., 'function\\s+myFunction', 'import\\s+\\{.*\\}\\s+from\\s+.*').`,
|
|
type: 'string',
|
|
},
|
|
dir_path: {
|
|
description:
|
|
'Optional: The absolute path to the directory to search within. If omitted, searches the current working directory.',
|
|
type: 'string',
|
|
},
|
|
include: {
|
|
description: `Optional: A glob pattern to filter which files are searched (e.g., '*.js', '*.{ts,tsx}', 'src/**'). If omitted, searches all files (respecting potential global ignores).`,
|
|
type: 'string',
|
|
},
|
|
},
|
|
required: ['pattern'],
|
|
type: 'object',
|
|
},
|
|
messageBus,
|
|
true,
|
|
false,
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Validates the parameters for the tool
|
|
* @param params Parameters to validate
|
|
* @returns An error message string if invalid, null otherwise
|
|
*/
|
|
protected override validateToolParamValues(
|
|
params: GrepToolParams,
|
|
): string | null {
|
|
try {
|
|
new RegExp(params.pattern);
|
|
} catch (error) {
|
|
return `Invalid regular expression pattern provided: ${params.pattern}. Error: ${getErrorMessage(error)}`;
|
|
}
|
|
|
|
// Only validate dir_path if one is provided
|
|
if (params.dir_path) {
|
|
const resolvedPath = path.resolve(
|
|
this.config.getTargetDir(),
|
|
params.dir_path,
|
|
);
|
|
const validationError = this.config.validatePathAccess(
|
|
resolvedPath,
|
|
'read',
|
|
);
|
|
if (validationError) {
|
|
return validationError;
|
|
}
|
|
|
|
// We still want to check if it's a directory
|
|
try {
|
|
const stats = fs.statSync(resolvedPath);
|
|
if (!stats.isDirectory()) {
|
|
return `Path is not a directory: ${resolvedPath}`;
|
|
}
|
|
} catch (error: unknown) {
|
|
if (isNodeError(error) && error.code === 'ENOENT') {
|
|
return `Path does not exist: ${resolvedPath}`;
|
|
}
|
|
return `Failed to access path stats for ${resolvedPath}: ${getErrorMessage(error)}`;
|
|
}
|
|
}
|
|
|
|
return null; // Parameters are valid
|
|
}
|
|
|
|
protected createInvocation(
|
|
params: GrepToolParams,
|
|
messageBus: MessageBus,
|
|
_toolName?: string,
|
|
_toolDisplayName?: string,
|
|
): ToolInvocation<GrepToolParams, ToolResult> {
|
|
return new GrepToolInvocation(
|
|
this.config,
|
|
params,
|
|
messageBus,
|
|
_toolName,
|
|
_toolDisplayName,
|
|
);
|
|
}
|
|
}
|