gitignore.js•2.51 kB
import * as fs from 'fs';
import * as path from 'path';
import ignore from 'ignore';
/**
* Class for parsing and applying .gitignore rules
*/
export class GitIgnoreParser {
/**
* Creates a new GitIgnore parser
* @param rootPath The root directory to start from
*/
constructor(rootPath) {
this.rootPath = rootPath;
this.ig = ignore();
this.loaded = false;
}
/**
* Loads gitignore rules from the root directory
*/
loadRules() {
try {
const gitignorePath = path.join(this.rootPath, '.gitignore');
// Check if .gitignore exists
if (fs.existsSync(gitignorePath)) {
const content = fs.readFileSync(gitignorePath, 'utf8');
this.ig = ignore().add(content);
this.loaded = true;
console.log('GitIgnore rules loaded successfully');
return true;
}
else {
console.log('No .gitignore file found, no ignore rules will be applied');
this.loaded = false;
return false;
}
}
catch (error) {
console.error('Error loading .gitignore rules:', error);
this.loaded = false;
return false;
}
}
/**
* Checks if a path should be ignored based on gitignore rules
* @param filePath Path to check (relative to the root directory)
* @returns True if the path should be ignored, false otherwise
*/
shouldIgnore(filePath) {
// If no rules are loaded, don't ignore anything
if (!this.loaded) {
return false;
}
// Make path relative to root if it's absolute
let relativePath = filePath;
if (path.isAbsolute(filePath)) {
relativePath = path.relative(this.rootPath, filePath);
}
// Normalize path separators to forward slashes for ignore to work correctly
relativePath = relativePath.replace(/\\/g, '/');
return this.ig.ignores(relativePath);
}
/**
* Filters an array of paths based on gitignore rules
* @param paths Array of paths to filter
* @returns Array of paths that should not be ignored
*/
filterPaths(paths) {
// If no rules are loaded, return all paths
if (!this.loaded) {
return paths;
}
return paths.filter(p => !this.shouldIgnore(p));
}
}
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