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Add proactive rate limit checking to prevent API exhaustion #5

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Add proactive rate limit checking to prevent API exhaustion #5

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43 changes: 43 additions & 0 deletions src/analyzer.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,43 @@ class GitHubArtifactsAnalyzer {
});
}

private async checkRateLimit() {
try {
const { data: rateLimit } = await this.octokit.rateLimit.get();
const core = rateLimit.resources.core;

return {
limited: core.remaining === 0,
resetAt: new Date(core.reset * 1000),
remaining: core.remaining
};
} catch (error) {
// If we can't check rate limits, assume not limited
return { limited: false };
}
}

private async checkAndWaitIfNearLimit(threshold = 500) {
const rateLimitStatus = await this.checkRateLimit();

if (rateLimitStatus.remaining !== undefined &&
rateLimitStatus.remaining <= threshold &&
rateLimitStatus.resetAt) {
const now = new Date();
const waitMs = rateLimitStatus.resetAt.getTime() - now.getTime();

if (waitMs > 0) {
const waitMinutes = Math.ceil(waitMs / 60000);
console.log(chalk.yellow(
`\n⏳ Rate limit low (${rateLimitStatus.remaining} requests remaining). ` +
`Waiting until ${rateLimitStatus.resetAt.toLocaleTimeString()} (${waitMinutes} minute${waitMinutes !== 1 ? 's' : ''})...`
));
await this.sleep(waitMs + 1000); // Add 1 second buffer
console.log(chalk.green(`✓ Rate limit reset. Resuming operations...\n`));
}
}
}

async analyzeAllRepositories(username, options = { includeExpired: false, minSize: 0 }) {
// Get authenticated user if no username provided
if (!username) {
Expand Down Expand Up @@ -44,6 +81,9 @@ class GitHubArtifactsAnalyzer {

// Process repositories in batches to avoid rate limiting
for (const repo of userRepos) {
// Proactively check rate limit before processing each repository
await this.checkAndWaitIfNearLimit();

console.log(chalk.gray(` Checking ${repo.full_name}${repo.private ? ' (private)' : ''}...`));
try {
const analysis = await this.analyzeRepository(repo.owner.login, repo.name, options);
Expand Down Expand Up @@ -98,6 +138,9 @@ class GitHubArtifactsAnalyzer {
} else {
// Process repositories in batches to avoid rate limiting
for (const repo of repos) {
// Proactively check rate limit before processing each repository
await this.checkAndWaitIfNearLimit();

console.log(chalk.gray(` Checking ${repo.full_name}...`));
try {
const analysis = await this.analyzeRepository(repo.owner.login, repo.name, options);
Expand Down