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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { GitIgnoreParser } from './gitIgnoreParser.js';
import * as fs from 'fs/promises';
import * as path from 'path';
import * as os from 'os';
describe('GitIgnoreParser', () => {
let parser: GitIgnoreParser;
let projectRoot: string;
async function createTestFile(filePath: string, content = '') {
const fullPath = path.join(projectRoot, filePath);
await fs.mkdir(path.dirname(fullPath), { recursive: true });
await fs.writeFile(fullPath, content);
}
async function setupGitRepo() {
await fs.mkdir(path.join(projectRoot, '.git'), { recursive: true });
}
beforeEach(async () => {
projectRoot = await fs.mkdtemp(path.join(os.tmpdir(), 'gitignore-test-'));
parser = new GitIgnoreParser(projectRoot);
});
afterEach(async () => {
await fs.rm(projectRoot, { recursive: true, force: true });
});
describe('initialization', () => {
it('should initialize without errors when no .gitignore exists', async () => {
await setupGitRepo();
expect(() => parser.loadGitRepoPatterns()).not.toThrow();
});
it('should load .gitignore patterns when file exists', async () => {
await setupGitRepo();
const gitignoreContent = `
# Comment
node_modules/
*.log
/dist
.env
`;
await createTestFile('.gitignore', gitignoreContent);
parser.loadGitRepoPatterns();
expect(parser.getPatterns()).toEqual([
'.git',
'node_modules/',
'*.log',
'/dist',
'.env',
]);
expect(parser.isIgnored(path.join('node_modules', 'some-lib'))).toBe(
true,
);
expect(parser.isIgnored(path.join('src', 'app.log'))).toBe(true);
expect(parser.isIgnored(path.join('dist', 'index.js'))).toBe(true);
expect(parser.isIgnored('.env')).toBe(true);
});
it('should handle git exclude file', async () => {
await setupGitRepo();
await createTestFile(
path.join('.git', 'info', 'exclude'),
'temp/\n*.tmp',
);
parser.loadGitRepoPatterns();
expect(parser.getPatterns()).toEqual(['.git', 'temp/', '*.tmp']);
expect(parser.isIgnored(path.join('temp', 'file.txt'))).toBe(true);
expect(parser.isIgnored(path.join('src', 'file.tmp'))).toBe(true);
});
it('should handle custom patterns file name', async () => {
// No .git directory for this test
await createTestFile('.geminiignore', 'temp/\n*.tmp');
parser.loadPatterns('.geminiignore');
expect(parser.getPatterns()).toEqual(['temp/', '*.tmp']);
expect(parser.isIgnored(path.join('temp', 'file.txt'))).toBe(true);
expect(parser.isIgnored(path.join('src', 'file.tmp'))).toBe(true);
});
it('should initialize without errors when no .geminiignore exists', () => {
expect(() => parser.loadPatterns('.geminiignore')).not.toThrow();
});
});
describe('isIgnored', () => {
beforeEach(async () => {
await setupGitRepo();
const gitignoreContent = `
node_modules/
*.log
/dist
/.env
src/*.tmp
!src/important.tmp
`;
await createTestFile('.gitignore', gitignoreContent);
parser.loadGitRepoPatterns();
});
it('should always ignore .git directory', () => {
expect(parser.isIgnored('.git')).toBe(true);
expect(parser.isIgnored(path.join('.git', 'config'))).toBe(true);
expect(parser.isIgnored(path.join(projectRoot, '.git', 'HEAD'))).toBe(
true,
);
});
it('should ignore files matching patterns', () => {
expect(
parser.isIgnored(path.join('node_modules', 'package', 'index.js')),
).toBe(true);
expect(parser.isIgnored('app.log')).toBe(true);
expect(parser.isIgnored(path.join('logs', 'app.log'))).toBe(true);
expect(parser.isIgnored(path.join('dist', 'bundle.js'))).toBe(true);
expect(parser.isIgnored('.env')).toBe(true);
expect(parser.isIgnored(path.join('config', '.env'))).toBe(false); // .env is anchored to root
});
it('should ignore files with path-specific patterns', () => {
expect(parser.isIgnored(path.join('src', 'temp.tmp'))).toBe(true);
expect(parser.isIgnored(path.join('other', 'temp.tmp'))).toBe(false);
});
it('should handle negation patterns', () => {
expect(parser.isIgnored(path.join('src', 'important.tmp'))).toBe(false);
});
it('should not ignore files that do not match patterns', () => {
expect(parser.isIgnored(path.join('src', 'index.ts'))).toBe(false);
expect(parser.isIgnored('README.md')).toBe(false);
});
it('should handle absolute paths correctly', () => {
const absolutePath = path.join(projectRoot, 'node_modules', 'lib');
expect(parser.isIgnored(absolutePath)).toBe(true);
});
it('should handle paths outside project root by not ignoring them', () => {
const outsidePath = path.resolve(projectRoot, '..', 'other', 'file.txt');
expect(parser.isIgnored(outsidePath)).toBe(false);
});
it('should handle relative paths correctly', () => {
expect(parser.isIgnored(path.join('node_modules', 'some-package'))).toBe(
true,
);
expect(
parser.isIgnored(path.join('..', 'some', 'other', 'file.txt')),
).toBe(false);
});
it('should normalize path separators on Windows', () => {
expect(parser.isIgnored(path.join('node_modules', 'package'))).toBe(true);
expect(parser.isIgnored(path.join('src', 'temp.tmp'))).toBe(true);
});
it('should handle root path "/" without throwing error', () => {
expect(() => parser.isIgnored('/')).not.toThrow();
expect(parser.isIgnored('/')).toBe(false);
});
it('should handle absolute-like paths without throwing error', () => {
expect(() => parser.isIgnored('/some/path')).not.toThrow();
expect(parser.isIgnored('/some/path')).toBe(false);
});
it('should handle paths that start with forward slash', () => {
expect(() => parser.isIgnored('/node_modules')).not.toThrow();
expect(parser.isIgnored('/node_modules')).toBe(false);
});
});
describe('getIgnoredPatterns', () => {
it('should return the raw patterns added', async () => {
await setupGitRepo();
const gitignoreContent = '*.log\n!important.log';
await createTestFile('.gitignore', gitignoreContent);
parser.loadGitRepoPatterns();
expect(parser.getPatterns()).toEqual(['.git', '*.log', '!important.log']);
});
});
});
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