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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { GitIgnoreParser, GitIgnoreFilter } from '../utils/gitIgnoreParser.js';
import { isGitRepository } from '../utils/gitUtils.js';
import * as path from 'path';
const GEMINI_IGNORE_FILE_NAME = '.geminiignore';
export interface FilterFilesOptions {
respectGitIgnore?: boolean;
respectGeminiIgnore?: boolean;
}
export class FileDiscoveryService {
private gitIgnoreFilter: GitIgnoreFilter | null = null;
private geminiIgnoreFilter: GitIgnoreFilter | null = null;
private projectRoot: string;
constructor(projectRoot: string) {
this.projectRoot = path.resolve(projectRoot);
if (isGitRepository(this.projectRoot)) {
const parser = new GitIgnoreParser(this.projectRoot);
try {
parser.loadGitRepoPatterns();
} catch (_error) {
// ignore file not found
}
this.gitIgnoreFilter = parser;
}
const gParser = new GitIgnoreParser(this.projectRoot);
try {
gParser.loadPatterns(GEMINI_IGNORE_FILE_NAME);
} catch (_error) {
// ignore file not found
}
this.geminiIgnoreFilter = gParser;
}
/**
* Filters a list of file paths based on git ignore rules
*/
filterFiles(
filePaths: string[],
options: FilterFilesOptions = {
respectGitIgnore: true,
respectGeminiIgnore: true,
},
): string[] {
return filePaths.filter((filePath) => {
if (options.respectGitIgnore && this.shouldGitIgnoreFile(filePath)) {
return false;
}
if (
options.respectGeminiIgnore &&
this.shouldGeminiIgnoreFile(filePath)
) {
return false;
}
return true;
});
}
/**
* Checks if a single file should be git-ignored
*/
shouldGitIgnoreFile(filePath: string): boolean {
if (this.gitIgnoreFilter) {
return this.gitIgnoreFilter.isIgnored(filePath);
}
return false;
}
/**
* Checks if a single file should be gemini-ignored
*/
shouldGeminiIgnoreFile(filePath: string): boolean {
if (this.geminiIgnoreFilter) {
return this.geminiIgnoreFilter.isIgnored(filePath);
}
return false;
}
/**
* Unified method to check if a file should be ignored based on filtering options
*/
shouldIgnoreFile(
filePath: string,
options: FilterFilesOptions = {},
): boolean {
const { respectGitIgnore = true, respectGeminiIgnore = true } = options;
if (respectGitIgnore && this.shouldGitIgnoreFile(filePath)) {
return true;
}
if (respectGeminiIgnore && this.shouldGeminiIgnoreFile(filePath)) {
return true;
}
return false;
}
/**
* Returns loaded patterns from .geminiignore
*/
getGeminiIgnorePatterns(): string[] {
return this.geminiIgnoreFilter?.getPatterns() ?? [];
}
}
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