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raw-changelog.ts
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261 lines (218 loc) · 7.66 KB
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#!/usr/bin/env bun
import { $ } from "bun"
import { parseArgs } from "util"
type Release = {
tag_name: string
draft: boolean
}
type Commit = {
hash: string
author: string | null
message: string
areas: Set<string>
}
type User = Map<string, Set<string>>
type Diff = {
sha: string
login: string | null
message: string
}
const repo = process.env.GH_REPO ?? "anomalyco/opencode"
const bot = ["actions-user", "opencode", "opencode-agent[bot]"]
const team = [
...(await Bun.file(new URL("../.github/TEAM_MEMBERS", import.meta.url))
.text()
.then((x) => x.split(/\r?\n/).map((x) => x.trim()))
.then((x) => x.filter((x) => x && !x.startsWith("#")))),
...bot,
]
const order = ["Core", "TUI", "Desktop", "SDK", "Extensions"] as const
const sections = {
core: "Core",
tui: "TUI",
app: "Desktop",
tauri: "Desktop",
sdk: "SDK",
plugin: "SDK",
"extensions/zed": "Extensions",
"extensions/vscode": "Extensions",
github: "Extensions",
} as const
function ref(input: string) {
if (input === "HEAD") return input
if (input.startsWith("v")) return input
if (input.match(/^\d+\.\d+\.\d+(?:[-+][0-9A-Za-z.-]+)?$/)) return `v${input}`
return input
}
async function latest() {
const data = await $`gh api "/repos/${repo}/releases?per_page=100"`.json()
const release = (data as Release[]).find((item) => !item.draft)
if (!release) throw new Error("No releases found")
return release.tag_name.replace(/^v/, "")
}
async function diff(base: string, head: string) {
const list: Diff[] = []
for (let page = 1; ; page++) {
const text =
await $`gh api "/repos/${repo}/compare/${base}...${head}?per_page=100&page=${page}" --jq '.commits[] | {sha: .sha, login: .author.login, message: .commit.message}'`.text()
const batch = text
.split("\n")
.filter(Boolean)
.map((line) => JSON.parse(line) as Diff)
if (batch.length === 0) break
list.push(...batch)
if (batch.length < 100) break
}
return list
}
function section(areas: Set<string>) {
const priority = ["core", "tui", "app", "tauri", "sdk", "plugin", "extensions/zed", "extensions/vscode", "github"]
for (const area of priority) {
if (areas.has(area)) return sections[area as keyof typeof sections]
}
return "Core"
}
function reverted(commits: Commit[]) {
const seen = new Map<string, Commit>()
for (const commit of commits) {
const match = commit.message.match(/^Revert "(.+)"$/)
if (match) {
const msg = match[1]!
if (seen.has(msg)) seen.delete(msg)
else seen.set(commit.message, commit)
continue
}
const revert = `Revert "${commit.message}"`
if (seen.has(revert)) {
seen.delete(revert)
continue
}
seen.set(commit.message, commit)
}
return [...seen.values()]
}
async function commits(from: string, to: string) {
const base = ref(from)
const head = ref(to)
const data = new Map<string, { login: string | null; message: string }>()
for (const item of await diff(base, head)) {
data.set(item.sha, { login: item.login, message: item.message.split("\n")[0] ?? "" })
}
const log =
await $`git log ${base}..${head} --format=%H -- packages/opencode packages/sdk packages/plugin packages/desktop packages/app sdks/vscode packages/extensions github`.text()
const list: Commit[] = []
for (const hash of log.split("\n").filter(Boolean)) {
const item = data.get(hash)
if (!item) continue
if (item.message.match(/^(ignore:|test:|chore:|ci:|release:)/i)) continue
const diff = await $`git diff-tree --no-commit-id --name-only -r ${hash}`.text()
const areas = new Set<string>()
for (const file of diff.split("\n").filter(Boolean)) {
if (file.startsWith("packages/opencode/src/cli/cmd/")) areas.add("tui")
else if (file.startsWith("packages/opencode/")) areas.add("core")
else if (file.startsWith("packages/desktop/src-tauri/")) areas.add("tauri")
else if (file.startsWith("packages/desktop/") || file.startsWith("packages/app/")) areas.add("app")
else if (file.startsWith("packages/sdk/") || file.startsWith("packages/plugin/")) areas.add("sdk")
else if (file.startsWith("packages/extensions/")) areas.add("extensions/zed")
else if (file.startsWith("sdks/vscode/") || file.startsWith("github/")) areas.add("extensions/vscode")
}
if (areas.size === 0) continue
list.push({
hash: hash.slice(0, 7),
author: item.login,
message: item.message,
areas,
})
}
return reverted(list)
}
async function contributors(from: string, to: string) {
const base = ref(from)
const head = ref(to)
const users: User = new Map()
for (const item of await diff(base, head)) {
const title = item.message.split("\n")[0] ?? ""
if (!item.login || team.includes(item.login)) continue
if (title.match(/^(ignore:|test:|chore:|ci:|release:)/i)) continue
if (!users.has(item.login)) users.set(item.login, new Set())
users.get(item.login)!.add(title)
}
return users
}
async function published(to: string) {
if (to === "HEAD") return
const body = await $`gh release view ${ref(to)} --repo ${repo} --json body --jq .body`.text().catch(() => "")
if (!body) return
const lines = body.split(/\r?\n/)
const start = lines.findIndex((line) => line.startsWith("**Thank you to "))
if (start < 0) return
return lines.slice(start).join("\n").trim()
}
async function thanks(from: string, to: string, reuse: boolean) {
const release = reuse ? await published(to) : undefined
if (release) return release.split(/\r?\n/)
const users = await contributors(from, to)
if (users.size === 0) return []
const lines = [`**Thank you to ${users.size} community contributor${users.size > 1 ? "s" : ""}:**`]
for (const [name, commits] of users) {
lines.push(`- @${name}:`)
for (const commit of commits) lines.push(` - ${commit}`)
}
return lines
}
function format(from: string, to: string, list: Commit[], thanks: string[]) {
const grouped = new Map<string, string[]>()
for (const title of order) grouped.set(title, [])
for (const commit of list) {
const title = section(commit.areas)
const attr = commit.author && !team.includes(commit.author) ? ` (@${commit.author})` : ""
grouped.get(title)!.push(`- \`${commit.hash}\` ${commit.message}${attr}`)
}
const lines = [`Last release: ${ref(from)}`, `Target ref: ${to}`, ""]
if (list.length === 0) {
lines.push("No notable changes.")
}
for (const title of order) {
const entries = grouped.get(title)
if (!entries || entries.length === 0) continue
lines.push(`## ${title}`)
lines.push(...entries)
lines.push("")
}
if (thanks.length > 0) {
if (lines.at(-1) !== "") lines.push("")
lines.push("## Community Contributors Input")
lines.push("")
lines.push(...thanks)
}
if (lines.at(-1) === "") lines.pop()
return lines.join("\n")
}
if (import.meta.main) {
const { values } = parseArgs({
args: Bun.argv.slice(2),
options: {
from: { type: "string", short: "f" },
to: { type: "string", short: "t", default: "HEAD" },
help: { type: "boolean", short: "h", default: false },
},
})
if (values.help) {
console.log(`
Usage: bun script/raw-changelog.ts [options]
Options:
-f, --from <version> Starting version (default: latest non-draft GitHub release)
-t, --to <ref> Ending ref (default: HEAD)
-h, --help Show this help message
Examples:
bun script/raw-changelog.ts
bun script/raw-changelog.ts --from 1.0.200
bun script/raw-changelog.ts -f 1.0.200 -t 1.0.205
`)
process.exit(0)
}
const to = values.to!
const from = values.from ?? (await latest())
const list = await commits(from, to)
console.log(format(from, to, list, await thanks(from, to, !values.from)))
}