Files
oh-my-pi/packages/coding-agent/src/tools/grep.ts
T
can1357 7ce3bb6906 feat(coding-agent): introduced hashline format v2 with colon separators and tag-based API
- Changed hashline format separator from pipe (|) to colon (:) for improved readability across all tools and output formats.
- Refactored hashline edit API with operation-based structure: renamed delete->rm, rename->mv, set->target/new_content, and added explicit op field for operation types.
- Updated hashline hash encoding from 4-character base36 to 2-character hexadecimal for more compact representation.
- Replaced anchor terminology with tags throughout hashline documentation and API for clearer semantics.
2026-02-19 22:04:18 +01:00

490 lines
17 KiB
TypeScript

import * as path from "node:path";
import type { AgentTool, AgentToolContext, AgentToolResult, AgentToolUpdateCallback } from "@oh-my-pi/pi-agent-core";
import { type GrepResult, grep } from "@oh-my-pi/pi-natives";
import type { Component } from "@oh-my-pi/pi-tui";
import { Text } from "@oh-my-pi/pi-tui";
import { untilAborted } from "@oh-my-pi/pi-utils";
import { type Static, Type } from "@sinclair/typebox";
import { renderPromptTemplate } from "../config/prompt-templates";
import type { RenderResultOptions } from "../extensibility/custom-tools/types";
import type { Theme } from "../modes/theme/theme";
import { computeLineHash } from "../patch/hashline";
import grepDescription from "../prompts/tools/grep.md" with { type: "text" };
import { Ellipsis, Hasher, type RenderCache, renderStatusLine, renderTreeList, truncateToWidth } from "../tui";
import { resolveFileDisplayMode } from "../utils/file-display-mode";
import type { ToolSession } from ".";
import type { OutputMeta } from "./output-meta";
import { resolveToCwd } from "./path-utils";
import { formatCount, formatEmptyMessage, formatErrorMessage, PREVIEW_LIMITS } from "./render-utils";
import { ToolError } from "./tool-errors";
import { toolResult } from "./tool-result";
import { DEFAULT_MAX_COLUMN, type TruncationResult, truncateHead } from "./truncate";
const grepSchema = Type.Object({
pattern: Type.String({ description: "Regex pattern to search for" }),
path: Type.Optional(Type.String({ description: "File or directory to search (default: cwd)" })),
glob: Type.Optional(Type.String({ description: "Filter files by glob pattern (e.g., '*.js')" })),
type: Type.Optional(Type.String({ description: "Filter by file type (e.g., js, py, rust)" })),
i: Type.Optional(Type.Boolean({ description: "Case-insensitive search (default: false)" })),
pre: Type.Optional(Type.Number({ description: "Lines of context before matches" })),
post: Type.Optional(Type.Number({ description: "Lines of context after matches" })),
multiline: Type.Optional(Type.Boolean({ description: "Enable multiline matching" })),
limit: Type.Optional(Type.Number({ description: "Limit output to first N matches (default: 100)" })),
offset: Type.Optional(Type.Number({ description: "Skip first N entries before applying limit (default: 0)" })),
});
export type GrepToolInput = Static<typeof grepSchema>;
const DEFAULT_MATCH_LIMIT = 100;
export interface GrepToolDetails {
truncation?: TruncationResult;
matchLimitReached?: number;
resultLimitReached?: number;
linesTruncated?: boolean;
meta?: OutputMeta;
scopePath?: string;
matchCount?: number;
fileCount?: number;
files?: string[];
fileMatches?: Array<{ path: string; count: number }>;
truncated?: boolean;
error?: string;
}
type GrepParams = Static<typeof grepSchema>;
export class GrepTool implements AgentTool<typeof grepSchema, GrepToolDetails> {
readonly name = "grep";
readonly label = "Grep";
readonly description: string;
readonly parameters = grepSchema;
constructor(private readonly session: ToolSession) {
const displayMode = resolveFileDisplayMode(session);
this.description = renderPromptTemplate(grepDescription, {
IS_HASHLINE_MODE: displayMode.hashLines,
IS_LINE_NUMBER_MODE: !displayMode.hashLines && displayMode.lineNumbers,
});
}
async execute(
_toolCallId: string,
params: GrepParams,
signal?: AbortSignal,
_onUpdate?: AgentToolUpdateCallback<GrepToolDetails>,
_toolContext?: AgentToolContext,
): Promise<AgentToolResult<GrepToolDetails>> {
const { pattern, path: searchDir, glob, type, i, pre, post, multiline, limit, offset } = params;
return untilAborted(signal, async () => {
const normalizedPattern = pattern.trim();
if (!normalizedPattern) {
throw new ToolError("Pattern must not be empty");
}
const normalizedOffset = offset === undefined ? 0 : Number.isFinite(offset) ? Math.floor(offset) : Number.NaN;
if (normalizedOffset < 0 || !Number.isFinite(normalizedOffset)) {
throw new ToolError("Offset must be a non-negative number");
}
const rawLimit = limit === undefined ? undefined : Number.isFinite(limit) ? Math.floor(limit) : Number.NaN;
if (rawLimit !== undefined && (!Number.isFinite(rawLimit) || rawLimit < 0)) {
throw new ToolError("Limit must be a non-negative number");
}
const normalizedLimit = rawLimit !== undefined && rawLimit > 0 ? rawLimit : undefined;
const defaultContextBefore = this.session.settings.get("grep.contextBefore");
const defaultContextAfter = this.session.settings.get("grep.contextAfter");
const normalizedContextBefore = pre ?? defaultContextBefore;
const normalizedContextAfter = post ?? defaultContextAfter;
const ignoreCase = i ?? false;
const patternHasNewline = normalizedPattern.includes("\n") || normalizedPattern.includes("\\n");
const effectiveMultiline = multiline ?? patternHasNewline;
const useHashLines = resolveFileDisplayMode(this.session).hashLines;
let searchPath: string;
const internalRouter = this.session.internalRouter;
if (searchDir && internalRouter?.canHandle(searchDir)) {
const resource = await internalRouter.resolve(searchDir);
if (!resource.sourcePath) {
throw new ToolError(`Cannot grep internal URL without a backing file: ${searchDir}`);
}
searchPath = resource.sourcePath;
} else {
searchPath = resolveToCwd(searchDir || ".", this.session.cwd);
}
const scopePath = (() => {
const relative = path.relative(this.session.cwd, searchPath).replace(/\\/g, "/");
return relative.length === 0 ? "." : relative;
})();
let isDirectory: boolean;
try {
const stat = await Bun.file(searchPath).stat();
isDirectory = stat.isDirectory();
} catch {
throw new ToolError(`Path not found: ${searchPath}`);
}
const effectiveOutputMode = "content";
const effectiveLimit = normalizedLimit ?? DEFAULT_MATCH_LIMIT;
// Run grep
let result: GrepResult;
try {
result = await grep({
pattern: normalizedPattern,
path: searchPath,
glob: glob?.trim() || undefined,
type: type?.trim() || undefined,
ignoreCase,
multiline: effectiveMultiline,
hidden: true,
cache: false,
maxCount: effectiveLimit,
offset: normalizedOffset > 0 ? normalizedOffset : undefined,
contextBefore: normalizedContextBefore,
contextAfter: normalizedContextAfter,
maxColumns: DEFAULT_MAX_COLUMN,
mode: effectiveOutputMode,
});
} catch (err) {
if (err instanceof Error && err.message.startsWith("regex parse error")) {
throw new ToolError(err.message);
}
throw err;
}
const formatPath = (filePath: string): string => {
// returns paths starting with / (the virtual root)
const cleanPath = filePath.startsWith("/") ? filePath.slice(1) : filePath;
if (isDirectory) {
return cleanPath.replace(/\\/g, "/");
}
return path.basename(cleanPath);
};
// Build output
const files = new Set<string>();
const fileList: string[] = [];
const fileMatchCounts = new Map<string, number>();
const recordFile = (filePath: string) => {
const relative = formatPath(filePath);
if (!files.has(relative)) {
files.add(relative);
fileList.push(relative);
}
};
if (result.totalMatches === 0) {
const details: GrepToolDetails = {
scopePath,
matchCount: 0,
fileCount: 0,
files: [],
truncated: false,
};
return toolResult(details).text("No matches found").done();
}
const outputLines: string[] = [];
let linesTruncated = false;
let matchIndex = 0;
for (const match of result.matches) {
recordFile(match.path);
const relativePath = formatPath(match.path);
matchIndex += 1;
if (matchIndex > 1) {
outputLines.push("");
}
outputLines.push(`${matchIndex}. ${relativePath}:${match.lineNumber}`);
const lineNumbers: number[] = [match.lineNumber];
if (match.contextBefore) {
for (const ctx of match.contextBefore) {
lineNumbers.push(ctx.lineNumber);
}
}
if (match.contextAfter) {
for (const ctx of match.contextAfter) {
lineNumbers.push(ctx.lineNumber);
}
}
const lineWidth = Math.max(...lineNumbers.map(value => value.toString().length));
const formatLine = (lineNumber: number, line: string, isMatch: boolean): string => {
if (useHashLines) {
const ref = `${lineNumber}#${computeLineHash(lineNumber, line)}`;
return isMatch ? `>>${ref}:${line}` : ` ${ref}:${line}`;
}
const padded = lineNumber.toString().padStart(lineWidth, " ");
return isMatch ? `>>${padded}:${line}` : ` ${padded}:${line}`;
};
// Add context before
if (match.contextBefore) {
for (const ctx of match.contextBefore) {
outputLines.push(formatLine(ctx.lineNumber, ctx.line, false));
}
}
// Add match line
outputLines.push(formatLine(match.lineNumber, match.line, true));
if (match.truncated) {
linesTruncated = true;
}
// Add context after
if (match.contextAfter) {
for (const ctx of match.contextAfter) {
outputLines.push(formatLine(ctx.lineNumber, ctx.line, false));
}
}
// Track per-file counts
fileMatchCounts.set(relativePath, (fileMatchCounts.get(relativePath) ?? 0) + 1);
}
const rawOutput = outputLines.join("\n");
const truncation = truncateHead(rawOutput, { maxLines: Number.MAX_SAFE_INTEGER });
const output = truncation.content;
const truncated = Boolean(result.limitReached || truncation.truncated || linesTruncated);
const details: GrepToolDetails = {
scopePath,
matchCount: result.totalMatches,
fileCount: result.filesWithMatches,
files: fileList,
fileMatches: fileList.map(path => ({
path,
count: fileMatchCounts.get(path) ?? 0,
})),
truncated,
matchLimitReached: result.limitReached ? effectiveLimit : undefined,
};
if (truncation.truncated) details.truncation = truncation;
if (linesTruncated) details.linesTruncated = true;
const resultBuilder = toolResult(details)
.text(output)
.limits({
matchLimit: result.limitReached ? effectiveLimit : undefined,
columnMax: linesTruncated ? DEFAULT_MAX_COLUMN : undefined,
});
if (truncation.truncated) {
resultBuilder.truncation(truncation, { direction: "head" });
}
return resultBuilder.done();
});
}
}
// =============================================================================
// TUI Renderer
// =============================================================================
interface GrepRenderArgs {
pattern: string;
path?: string;
glob?: string;
type?: string;
i?: boolean;
pre?: number;
post?: number;
multiline?: boolean;
limit?: number;
offset?: number;
}
const COLLAPSED_TEXT_LIMIT = PREVIEW_LIMITS.COLLAPSED_LINES * 2;
export const grepToolRenderer = {
inline: true,
renderCall(args: GrepRenderArgs, uiTheme: Theme): Component {
const meta: string[] = [];
if (args.path) meta.push(`in ${args.path}`);
if (args.glob) meta.push(`glob:${args.glob}`);
if (args.type) meta.push(`type:${args.type}`);
if (args.i) meta.push("case:insensitive");
if (args.pre !== undefined && args.pre > 0) {
meta.push(`pre:${args.pre}`);
}
if (args.post !== undefined && args.post > 0) {
meta.push(`post:${args.post}`);
}
if (args.multiline) meta.push("multiline");
if (args.limit !== undefined && args.limit > 0) meta.push(`limit:${args.limit}`);
if (args.offset !== undefined && args.offset > 0) meta.push(`offset:${args.offset}`);
const text = renderStatusLine(
{ icon: "pending", title: "Grep", description: args.pattern || "?", meta },
uiTheme,
);
return new Text(text, 0, 0);
},
renderResult(
result: { content: Array<{ type: string; text?: string }>; details?: GrepToolDetails; isError?: boolean },
options: RenderResultOptions,
uiTheme: Theme,
args?: GrepRenderArgs,
): Component {
const details = result.details;
if (result.isError || details?.error) {
const errorText = details?.error || result.content?.find(c => c.type === "text")?.text || "Unknown error";
return new Text(formatErrorMessage(errorText, uiTheme), 0, 0);
}
const hasDetailedData = details?.matchCount !== undefined || details?.fileCount !== undefined;
if (!hasDetailedData) {
const textContent = result.content?.find(c => c.type === "text")?.text;
if (!textContent || textContent === "No matches found") {
return new Text(formatEmptyMessage("No matches found", uiTheme), 0, 0);
}
const lines = textContent.split("\n").filter(line => line.trim() !== "");
const description = args?.pattern ?? undefined;
const header = renderStatusLine(
{ icon: "success", title: "Grep", description, meta: [formatCount("item", lines.length)] },
uiTheme,
);
let cached: RenderCache | undefined;
return {
render(width: number): string[] {
const { expanded } = options;
const key = new Hasher().bool(expanded).u32(width).digest();
if (cached?.key === key) return cached.lines;
const listLines = renderTreeList(
{
items: lines,
expanded,
maxCollapsed: COLLAPSED_TEXT_LIMIT,
itemType: "item",
renderItem: line => uiTheme.fg("toolOutput", line),
},
uiTheme,
);
const result = [header, ...listLines].map(l => truncateToWidth(l, width, Ellipsis.Omit));
cached = { key, lines: result };
return result;
},
invalidate() {
cached = undefined;
},
};
}
const matchCount = details?.matchCount ?? 0;
const fileCount = details?.fileCount ?? 0;
const truncation = details?.meta?.truncation;
const limits = details?.meta?.limits;
const truncated = Boolean(
details?.truncated || truncation || limits?.matchLimit || limits?.resultLimit || limits?.columnTruncated,
);
if (matchCount === 0) {
const header = renderStatusLine(
{ icon: "warning", title: "Grep", description: args?.pattern, meta: ["0 matches"] },
uiTheme,
);
return new Text([header, formatEmptyMessage("No matches found", uiTheme)].join("\n"), 0, 0);
}
const summaryParts = [formatCount("match", matchCount), formatCount("file", fileCount)];
const meta = [...summaryParts];
if (details?.scopePath) meta.push(`in ${details.scopePath}`);
if (truncated) meta.push(uiTheme.fg("warning", "truncated"));
const description = args?.pattern ?? undefined;
const header = renderStatusLine(
{ icon: truncated ? "warning" : "success", title: "Grep", description, meta },
uiTheme,
);
const textContent = result.content?.find(c => c.type === "text")?.text ?? "";
const rawLines = textContent.split("\n");
const hasSeparators = rawLines.some(line => line.trim().length === 0);
const matchGroups: string[][] = [];
if (hasSeparators) {
let current: string[] = [];
for (const line of rawLines) {
if (line.trim().length === 0) {
if (current.length > 0) {
matchGroups.push(current);
current = [];
}
continue;
}
current.push(line);
}
if (current.length > 0) matchGroups.push(current);
} else {
for (const line of rawLines) {
if (line.trim().length === 0) continue;
matchGroups.push([line]);
}
}
const getCollapsedMatchLimit = (groups: string[][], maxLines: number): number => {
if (groups.length === 0) return 0;
let usedLines = 0;
let count = 0;
for (const group of groups) {
if (count > 0 && usedLines + group.length > maxLines) break;
usedLines += group.length;
count += 1;
if (usedLines >= maxLines) break;
}
return count;
};
const truncationReasons: string[] = [];
if (limits?.matchLimit) truncationReasons.push(`limit ${limits.matchLimit.reached} matches`);
if (limits?.resultLimit) truncationReasons.push(`limit ${limits.resultLimit.reached} results`);
if (truncation) truncationReasons.push(truncation.truncatedBy === "lines" ? "line limit" : "size limit");
if (limits?.columnTruncated) truncationReasons.push(`line length ${limits.columnTruncated.maxColumn}`);
if (truncation?.artifactId) truncationReasons.push(`full output: artifact://${truncation.artifactId}`);
const extraLines =
truncationReasons.length > 0 ? [uiTheme.fg("warning", `truncated: ${truncationReasons.join(", ")}`)] : [];
let cached: RenderCache | undefined;
return {
render(width: number): string[] {
const { expanded } = options;
const key = new Hasher().bool(expanded).u32(width).digest();
if (cached?.key === key) return cached.lines;
const maxCollapsed = expanded
? matchGroups.length
: getCollapsedMatchLimit(matchGroups, COLLAPSED_TEXT_LIMIT);
const matchLines = renderTreeList(
{
items: matchGroups,
expanded,
maxCollapsed,
itemType: "match",
renderItem: group => group.map(line => uiTheme.fg("toolOutput", line)),
},
uiTheme,
);
const result = [header, ...matchLines, ...extraLines].map(l => truncateToWidth(l, width, Ellipsis.Omit));
cached = { key, lines: result };
return result;
},
invalidate() {
cached = undefined;
},
};
},
mergeCallAndResult: true,
};