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#!/usr/bin/env bun
import { parseArgs } from "util"
const defaultRepo = "anomalyco/opencode"
const defaultAgeMonths = 1
const defaultThreshold = 2
const defaultSleepMs = 20_000
const defaultPrintLimit = 50
const positiveReactions = new Set(["THUMBS_UP", "HEART", "HOORAY", "ROCKET"])
const cleanupLabel = "automated-pr-cleanup"
const { values } = parseArgs({
args: Bun.argv.slice(2),
options: {
execute: { type: "boolean", default: false },
"dry-run": { type: "boolean", default: false },
repo: { type: "string", default: defaultRepo },
threshold: { type: "string", default: String(defaultThreshold) },
"age-months": { type: "string", default: String(defaultAgeMonths) },
"max-close": { type: "string" },
"sleep-ms": { type: "string", default: String(defaultSleepMs) },
"print-limit": { type: "string", default: String(defaultPrintLimit) },
help: { type: "boolean", short: "h", default: false },
},
})
if (values.help) {
console.log(`
Usage: bun script/github/close-prs.ts [options]
Dry-run is the default. The script only comments and closes PRs when --execute is passed.
Criteria:
- PRs created within the last month are untouched
- PRs older than one month are closed when they have fewer than 2 positive reactions
- Positive reactions are THUMBS_UP, HEART, HOORAY, and ROCKET reactions on the PR
Options:
--execute Comment and close matching PRs
--dry-run Explicitly run without changing anything
--repo <owner/repo> Repository to clean up (default: ${defaultRepo})
--threshold <n> Positive reaction threshold (default: ${defaultThreshold})
--age-months <n> Age cutoff in months (default: ${defaultAgeMonths})
--max-close <n> Maximum matching PRs to process
--sleep-ms <n> Delay between closing PRs (default: ${defaultSleepMs})
--print-limit <n> Number of matching PRs to print in dry-run (default: ${defaultPrintLimit})
-h, --help Show this help message
Examples:
bun script/github/close-prs.ts
bun script/github/close-prs.ts --threshold 2 --print-limit 100
bun script/github/close-prs.ts --execute --threshold 2 --max-close 25
`)
process.exit(0)
}
if (values.execute && values["dry-run"]) {
console.error("Use either --execute or --dry-run, not both")
process.exit(1)
}
const token = await requireToken()
const repo = requireRepo(values.repo)
const threshold = requirePositiveInteger("threshold", values.threshold)
const ageMonths = requirePositiveInteger("age-months", values["age-months"])
const maxClose =
values["max-close"] === undefined ? undefined : requirePositiveInteger("max-close", values["max-close"])
const sleepMs = requireNonNegativeInteger("sleep-ms", values["sleep-ms"])
const printLimit = requireNonNegativeInteger("print-limit", values["print-limit"])
const cutoff = subtractMonths(new Date(), ageMonths)
const headers = {
Authorization: `Bearer ${token}`,
"Content-Type": "application/json",
Accept: "application/vnd.github+json",
"X-GitHub-Api-Version": "2022-11-28",
}
type PullRequest = {
number: number
title: string
url: string
createdAt: string
reactionGroups: Array<{
content: string
users: {
totalCount: number
}
}>
labels: {
nodes: Array<{
name: string
}>
}
}
type GraphqlResponse = {
data?: {
rateLimit: {
cost: number
remaining: number
resetAt: string
}
repository: {
pullRequests: {
pageInfo: {
hasNextPage: boolean
endCursor: string | null
}
nodes: PullRequest[]
}
}
}
errors?: Array<{
message: string
}>
}
type CleanupCandidate = PullRequest & {
positiveReactions: number
}
const message = `Automated PR Cleanup
Thank you for contributing to opencode.
Due to the high volume of PRs from users and AI agents, we periodically close older PRs using automated criteria so maintainers can focus review time on the most active and community-supported contributions.
This PR was closed because it matched the following cleanup criteria:
- The PR was created more than ${ageMonths === 1 ? "1 month" : `${ageMonths} months`} ago
- The PR had fewer than ${threshold} positive reactions
- Positive reactions are counted as thumbs-up, heart, celebration, or rocket reactions on the PR
PRs created within the last ${ageMonths === 1 ? "month are" : `${ageMonths} months are`} not affected by this cleanup.
If you believe this PR was closed incorrectly, or if you are still actively working on it, please leave a comment explaining why it should be reopened. A maintainer can review and reopen it if appropriate.
Thanks again for taking the time to contribute.`
async function main() {
console.log(`${values.execute ? "EXECUTE" : "DRY RUN"}: PR cleanup for ${repo.owner}/${repo.name}`)
console.log(`Cutoff: ${cutoff.toISOString()}`)
console.log(`Threshold: fewer than ${threshold} positive reactions`)
const prs = await fetchOpenPullRequests()
const recentCount = prs.filter((pr) => new Date(pr.createdAt) >= cutoff).length
const matching = prs
.map((pr) => ({ ...pr, positiveReactions: positiveReactionCount(pr) }))
.filter((pr) => new Date(pr.createdAt) < cutoff && pr.positiveReactions < threshold)
const candidates = matching.filter((pr) => !hasPriorCleanup(pr))
const selected = maxClose === undefined ? candidates : candidates.slice(0, maxClose)
console.log(`Fetched ${prs.length} open PRs`)
console.log(`Matching cleanup criteria: ${matching.length}`)
console.log(`Skipped previously cleaned PRs: ${matching.length - candidates.length}`)
console.log(`Recent PRs untouched: ${recentCount}`)
console.log(
`Older PRs with at least ${threshold} positive reactions untouched: ${prs.length - matching.length - recentCount}`,
)
if (selected.length === 0) return
if (!values.execute) {
console.log(`\nDry-run only. Re-run with --execute to comment and close matching PRs.`)
console.log(`Showing ${Math.min(printLimit, selected.length)} of ${selected.length} matching PRs:\n`)
for (const pr of selected.slice(0, printLimit)) {
console.log(`#${pr.number} ${pr.createdAt} positive=${pr.positiveReactions} ${pr.url}`)
}
if (selected.length > printLimit) console.log(`... ${selected.length - printLimit} more not shown`)
return
}
await ensureCleanupLabel()
console.log(`\nCommenting and closing ${selected.length} PRs...`)
for (const pr of selected) {
await closePullRequest(pr)
if (sleepMs > 0) await sleep(sleepMs)
}
console.log(`Closed ${selected.length} PRs`)
}
async function fetchOpenPullRequests() {
const prs: PullRequest[] = []
let endCursor: string | null = null
while (true) {
const page = await graphql({
query: `query($owner: String!, $name: String!, $endCursor: String) {
rateLimit {
cost
remaining
resetAt
}
repository(owner: $owner, name: $name) {
pullRequests(first: 100, states: OPEN, orderBy: { field: CREATED_AT, direction: ASC }, after: $endCursor) {
pageInfo {
hasNextPage
endCursor
}
nodes {
number
title
url
createdAt
reactionGroups {
content
users {
totalCount
}
}
labels(first: 100) {
nodes {
name
}
}
}
}
}
}`,
variables: {
owner: repo.owner,
name: repo.name,
endCursor,
},
})
prs.push(...page.repository.pullRequests.nodes)
console.log(
`Fetched ${prs.length} PRs, GraphQL rate limit remaining ${page.rateLimit.remaining} (cost ${page.rateLimit.cost})`,
)
if (page.rateLimit.remaining < 100) {
const delay = Math.max(0, new Date(page.rateLimit.resetAt).getTime() - Date.now()) + 1_000
console.warn(`GraphQL rate limit low; sleeping ${Math.ceil(delay / 1000)}s until reset`)
await sleep(delay)
}
if (!page.repository.pullRequests.pageInfo.hasNextPage) return prs
endCursor = page.repository.pullRequests.pageInfo.endCursor
}
}
async function graphql(input: { query: string; variables: Record<string, string | null> }) {
const response = await githubRequest("/graphql", {
method: "POST",
body: JSON.stringify(input),
})
const body = (await response.json()) as GraphqlResponse
if (body.errors?.length)
throw new Error(`GitHub GraphQL error: ${body.errors.map((error) => error.message).join(", ")}`)
if (!body.data) throw new Error("GitHub GraphQL response did not include data")
return body.data
}
async function closePullRequest(pr: CleanupCandidate) {
await githubRequest(`/repos/${repo.owner}/${repo.name}/issues/${pr.number}/comments`, {
method: "POST",
body: JSON.stringify({ body: message }),
})
await githubRequest(`/repos/${repo.owner}/${repo.name}/pulls/${pr.number}`, {
method: "PATCH",
body: JSON.stringify({ state: "closed" }),
})
await githubRequest(`/repos/${repo.owner}/${repo.name}/issues/${pr.number}/labels`, {
method: "POST",
body: JSON.stringify({ labels: [cleanupLabel] }),
})
console.log(`Closed #${pr.number} positive=${pr.positiveReactions} ${pr.url}`)
}
async function ensureCleanupLabel() {
const response = await fetch(
`https://api.github.com/repos/${repo.owner}/${repo.name}/labels/${encodeURIComponent(cleanupLabel)}`,
{
headers,
},
)
if (response.ok) return
if (response.status !== 404)
throw new Error(`Failed to check cleanup label: ${response.status} ${response.statusText}`)
await githubRequest(`/repos/${repo.owner}/${repo.name}/labels`, {
method: "POST",
body: JSON.stringify({
name: cleanupLabel,
color: "ededed",
description: "PR was closed by automated cleanup",
}),
})
}
async function githubRequest(path: string, init: RequestInit, attempt = 0): Promise<Response> {
const response = await fetch(path.startsWith("https://") ? path : `https://api.github.com${path}`, {
...init,
headers: {
...headers,
...init.headers,
},
})
if (response.ok) return response
const body = await response.text()
const retryAfter = response.headers.get("retry-after")
const reset = response.headers.get("x-ratelimit-reset")
const retryMs = retryAfter
? Number(retryAfter) * 1000
: response.headers.get("x-ratelimit-remaining") === "0" && reset
? Math.max(0, Number(reset) * 1000 - Date.now()) + 1_000
: body.toLowerCase().includes("secondary rate limit")
? 300_000
: response.status >= 500
? Math.min(300_000, 10_000 * 2 ** attempt)
: 0
if ((response.status === 403 || response.status === 429 || response.status >= 500) && retryMs > 0 && attempt < 10) {
console.warn(`GitHub request failed; sleeping ${Math.ceil(retryMs / 1000)}s before retry ${attempt + 1}`)
await sleep(retryMs)
return githubRequest(path, init, attempt + 1)
}
throw new Error(`GitHub request failed: ${response.status} ${response.statusText}\n${body}`)
}
function positiveReactionCount(pr: PullRequest) {
return pr.reactionGroups
.filter((group) => positiveReactions.has(group.content))
.reduce((total, group) => total + group.users.totalCount, 0)
}
function hasPriorCleanup(pr: PullRequest) {
return pr.labels.nodes.some((label) => label.name === cleanupLabel)
}
function requireRepo(value: string | undefined) {
if (!value) throw new Error("repo is required")
const [owner, name] = value.split("/")
if (!owner || !name) throw new Error(`Invalid repo ${value}; expected owner/name`)
return { owner, name }
}
async function requireToken() {
const envToken = process.env.GITHUB_TOKEN ?? process.env.GH_TOKEN
if (envToken) return envToken
const proc = Bun.spawn(["gh", "auth", "token"], {
stdout: "pipe",
stderr: "pipe",
})
const stdout = await new Response(proc.stdout).text()
const stderr = await new Response(proc.stderr).text()
const exitCode = await proc.exited
if (exitCode === 0 && stdout.trim()) return stdout.trim()
throw new Error(
`GitHub authentication is required. Set GITHUB_TOKEN/GH_TOKEN or run gh auth login.\n${stderr.trim()}`,
)
}
function requirePositiveInteger(name: string, value: string | undefined) {
const parsed = Number(value)
if (!Number.isInteger(parsed) || parsed <= 0) throw new Error(`${name} must be a positive integer`)
return parsed
}
function requireNonNegativeInteger(name: string, value: string | undefined) {
const parsed = Number(value)
if (!Number.isInteger(parsed) || parsed < 0) throw new Error(`${name} must be a non-negative integer`)
return parsed
}
function subtractMonths(date: Date, months: number) {
const result = new Date(date)
const day = result.getUTCDate()
result.setUTCDate(1)
result.setUTCMonth(result.getUTCMonth() - months)
result.setUTCDate(
Math.min(day, new Date(Date.UTC(result.getUTCFullYear(), result.getUTCMonth() + 1, 0)).getUTCDate()),
)
return result
}
function sleep(ms: number) {
return new Promise((resolve) => setTimeout(resolve, ms))
}
void main().catch((error) => {
console.error("Error:", error)
process.exit(1)
})
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