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Limit recursion when looking for .gitignore files (#8103)

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Co-authored-by: cornmander <shikhman@google.com>
This commit is contained in:
Billy Biggs
2025-09-09 14:45:37 -07:00
committed by GitHub
parent da58b93026
commit de5a31c3b6
1 changed files with 35 additions and 24 deletions
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59
packages/core/src/utils/gitIgnoreParser.ts
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@@ -18,6 +18,7 @@ export class GitIgnoreParser implements GitIgnoreFilter {
private projectRoot: string;
private ig: Ignore = ignore();
private patterns: string[] = [];
private readonly maxScannedDirs = 200;
constructor(projectRoot: string) {
this.projectRoot = path.resolve(projectRoot);
@@ -33,34 +34,44 @@ export class GitIgnoreParser implements GitIgnoreFilter {
this.findAndLoadGitignoreFiles(this.projectRoot);
}
private findAndLoadGitignoreFiles(dir: string): void {
const relativeDir = path.relative(this.projectRoot, dir);
private findAndLoadGitignoreFiles(startDir: string): void {
const queue: string[] = [startDir];
let scannedDirs = 0;
let queueHead = 0;
// For sub-directories, check if they are ignored before proceeding.
// The root directory (relativeDir === '') should not be checked.
if (relativeDir && this.isIgnored(relativeDir)) {
return;
}
while (queueHead < queue.length && scannedDirs < this.maxScannedDirs) {
const dir = queue[queueHead];
queueHead++;
scannedDirs++;
// Load patterns from .gitignore in the current directory
const gitignorePath = path.join(dir, '.gitignore');
if (fs.existsSync(gitignorePath)) {
this.loadPatterns(path.relative(this.projectRoot, gitignorePath));
}
const relativeDir = path.relative(this.projectRoot, dir);
// Recurse into subdirectories
try {
const entries = fs.readdirSync(dir, { withFileTypes: true });
for (const entry of entries) {
if (entry.name === '.git') {
continue;
}
if (entry.isDirectory()) {
this.findAndLoadGitignoreFiles(path.join(dir, entry.name));
}
// For sub-directories, check if they are ignored before proceeding.
// The root directory (relativeDir === '') should not be checked.
if (relativeDir && this.isIgnored(relativeDir)) {
continue;
}
// Load patterns from .gitignore in the current directory
const gitignorePath = path.join(dir, '.gitignore');
if (fs.existsSync(gitignorePath)) {
this.loadPatterns(path.relative(this.projectRoot, gitignorePath));
}
// Recurse into subdirectories
try {
const entries = fs.readdirSync(dir, { withFileTypes: true });
for (const entry of entries) {
if (entry.name === '.git') {
continue;
}
if (entry.isDirectory()) {
queue.push(path.join(dir, entry.name));
}
}
} catch (_error) {
// ignore readdir errors
}
} catch (_error) {
// ignore readdir errors
}
}