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stats.ts
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#!/usr/bin/env bun
async function sendToPostHog(event: string, properties: Record<string, any>) {
const key = process.env["POSTHOG_KEY"]
if (!key) {
console.warn("POSTHOG_API_KEY not set, skipping PostHog event")
return
}
const response = await fetch("https://us.i.posthog.com/i/v0/e/", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({
distinct_id: "download",
api_key: key,
event,
properties: {
...properties,
},
}),
}).catch(() => null)
if (response && !response.ok) {
console.warn(`PostHog API error: ${response.status}`)
}
}
interface Asset {
name: string
download_count: number
}
interface Release {
tag_name: string
name: string
assets: Asset[]
}
interface NpmDownloadsRange {
start: string
end: string
package: string
downloads: Array<{
downloads: number
day: string
}>
}
async function fetchNpmDownloads(packageName: string): Promise<number> {
try {
// Use a range from 2020 to current year + 5 years to ensure it works forever
const currentYear = new Date().getFullYear()
const endYear = currentYear + 5
const response = await fetch(`https://api.npmjs.org/downloads/range/2020-01-01:${endYear}-12-31/${packageName}`)
if (!response.ok) {
console.warn(`Failed to fetch npm downloads for ${packageName}: ${response.status}`)
return 0
}
const data: NpmDownloadsRange = await response.json()
return data.downloads.reduce((total, day) => total + day.downloads, 0)
} catch (error) {
console.warn(`Error fetching npm downloads for ${packageName}:`, error)
return 0
}
}
async function fetchReleases(): Promise<Release[]> {
const releases: Release[] = []
let page = 1
const per = 100
while (true) {
const url = `https://api.github.com/repos/anomalyco/opencode/releases?page=${page}&per_page=${per}`
const response = await fetch(url)
if (!response.ok) {
throw new Error(`GitHub API error: ${response.status} ${response.statusText}`)
}
const batch: Release[] = await response.json()
if (batch.length === 0) break
releases.push(...batch)
console.log(`Fetched page ${page} with ${batch.length} releases`)
if (batch.length < per) break
page++
await new Promise((resolve) => setTimeout(resolve, 1000))
}
return releases
}
function calculate(releases: Release[]) {
let total = 0
const stats = []
for (const release of releases) {
let downloads = 0
const assets = []
for (const asset of release.assets) {
downloads += asset.download_count
assets.push({
name: asset.name,
downloads: asset.download_count,
})
}
total += downloads
stats.push({
tag: release.tag_name,
name: release.name,
downloads,
assets,
})
}
return { total, stats }
}
async function save(githubTotal: number, npmDownloads: number) {
const file = "STATS.md"
const date = new Date().toISOString().split("T")[0]
const total = githubTotal + npmDownloads
let previousGithub = 0
let previousNpm = 0
let previousTotal = 0
let content = ""
try {
content = await Bun.file(file).text()
const lines = content.trim().split("\n")
for (let i = lines.length - 1; i >= 0; i--) {
const line = lines[i].trim()
if (line.startsWith("|") && !line.includes("Date") && !line.includes("---")) {
const match = line.match(
/\|\s*[\d-]+\s*\|\s*([\d,]+)\s*(?:\([^)]*\))?\s*\|\s*([\d,]+)\s*(?:\([^)]*\))?\s*\|\s*([\d,]+)\s*(?:\([^)]*\))?\s*\|/,
)
if (match) {
previousGithub = parseInt(match[1].replace(/,/g, ""))
previousNpm = parseInt(match[2].replace(/,/g, ""))
previousTotal = parseInt(match[3].replace(/,/g, ""))
break
}
}
}
} catch {
content =
"# Download Stats\n\n| Date | GitHub Downloads | npm Downloads | Total |\n|------|------------------|---------------|-------|\n"
}
const githubChange = githubTotal - previousGithub
const npmChange = npmDownloads - previousNpm
const totalChange = total - previousTotal
const githubChangeStr =
githubChange > 0
? ` (+${githubChange.toLocaleString()})`
: githubChange < 0
? ` (${githubChange.toLocaleString()})`
: " (+0)"
const npmChangeStr =
npmChange > 0 ? ` (+${npmChange.toLocaleString()})` : npmChange < 0 ? ` (${npmChange.toLocaleString()})` : " (+0)"
const totalChangeStr =
totalChange > 0
? ` (+${totalChange.toLocaleString()})`
: totalChange < 0
? ` (${totalChange.toLocaleString()})`
: " (+0)"
const line = `| ${date} | ${githubTotal.toLocaleString()}${githubChangeStr} | ${npmDownloads.toLocaleString()}${npmChangeStr} | ${total.toLocaleString()}${totalChangeStr} |\n`
if (!content.includes("# Download Stats")) {
content =
"# Download Stats\n\n| Date | GitHub Downloads | npm Downloads | Total |\n|------|------------------|---------------|-------|\n"
}
await Bun.write(file, content + line)
await Bun.spawn(["bunx", "prettier", "--write", file]).exited
console.log(
`\nAppended stats to ${file}: GitHub ${githubTotal.toLocaleString()}${githubChangeStr}, npm ${npmDownloads.toLocaleString()}${npmChangeStr}, Total ${total.toLocaleString()}${totalChangeStr}`,
)
}
console.log("Fetching GitHub releases for anomalyco/opencode...\n")
const releases = await fetchReleases()
console.log(`\nFetched ${releases.length} releases total\n`)
const { total: githubTotal, stats } = calculate(releases)
console.log("Fetching npm all-time downloads for opencode-ai...\n")
const npmDownloads = await fetchNpmDownloads("opencode-ai")
console.log(`Fetched npm all-time downloads: ${npmDownloads.toLocaleString()}\n`)
await save(githubTotal, npmDownloads)
await sendToPostHog("download", {
count: githubTotal,
source: "github",
})
await sendToPostHog("download", {
count: npmDownloads,
source: "npm",
})
const totalDownloads = githubTotal + npmDownloads
console.log("=".repeat(60))
console.log(`TOTAL DOWNLOADS: ${totalDownloads.toLocaleString()}`)
console.log(` GitHub: ${githubTotal.toLocaleString()}`)
console.log(` npm: ${npmDownloads.toLocaleString()}`)
console.log("=".repeat(60))
console.log("-".repeat(60))
console.log(`GitHub Total: ${githubTotal.toLocaleString()} downloads across ${releases.length} releases`)
console.log(`npm Total: ${npmDownloads.toLocaleString()} downloads`)
console.log(`Combined Total: ${totalDownloads.toLocaleString()} downloads`)