| 1 | import { spawn, type ChildProcess } from "node:child_process"; |
| 2 | import { createHash } from "node:crypto"; |
| 3 | import { existsSync, statSync, accessSync, readdirSync, readFileSync, constants as fsc } from "node:fs"; |
| 4 | import path from "node:path"; |
| 5 | import { constants } from "node:os"; |
| 6 | |
| 7 | export const sleep = (ms: number) => new Promise<void>((r) => setTimeout(r, ms)); |
| 8 | |
| 9 | export function nowIso(): string { |
| 10 | return new Date().toISOString(); |
| 11 | } |
| 12 | |
| 13 | /** Splits a command line into words, honouring single and double quotes. */ |
| 14 | export function shellWords(s: string): string[] { |
| 15 | const out: string[] = []; |
| 16 | let cur = ""; |
| 17 | let has = false; |
| 18 | let q: string | null = null; |
| 19 | for (let i = 0; i < s.length; i++) { |
| 20 | const ch = s[i]!; |
| 21 | if (q) { |
| 22 | if (ch === q) q = null; |
| 23 | else if (ch === "\\" && q === '"' && (s[i + 1] === '"' || s[i + 1] === "\\")) cur += s[++i]; |
| 24 | else cur += ch; |
| 25 | continue; |
| 26 | } |
| 27 | if (ch === '"' || ch === "'") { |
| 28 | q = ch; |
| 29 | has = true; |
| 30 | } else if (/\s/.test(ch)) { |
| 31 | if (has || cur) out.push(cur); |
| 32 | cur = ""; |
| 33 | has = false; |
| 34 | } else { |
| 35 | cur += ch; |
| 36 | has = true; |
| 37 | } |
| 38 | } |
| 39 | if (has || cur) out.push(cur); |
| 40 | return out; |
| 41 | } |
| 42 | |
| 43 | /** Locates an executable in a PATH string. */ |
| 44 | export function which(cmd: string, pathEnv: string | undefined = process.env.PATH): string | null { |
| 45 | if (cmd.includes("/")) return existsSync(cmd) ? cmd : null; |
| 46 | for (const dir of (pathEnv ?? "").split(path.delimiter)) { |
| 47 | if (!dir) continue; |
| 48 | const p = path.join(dir, cmd); |
| 49 | try { |
| 50 | accessSync(p, fsc.X_OK); |
| 51 | if (statSync(p).isFile()) return p; |
| 52 | } catch { |
| 53 | /* next */ |
| 54 | } |
| 55 | } |
| 56 | return null; |
| 57 | } |
| 58 | |
| 59 | export interface ExecOptions { |
| 60 | cwd?: string; |
| 61 | env?: NodeJS.ProcessEnv; |
| 62 | onLine?: (line: string, stream: "stdout" | "stderr") => void; |
| 63 | input?: string; |
| 64 | timeoutMs?: number; |
| 65 | /** Called with the child so callers can kill it on cancellation. */ |
| 66 | onSpawn?: (child: ChildProcess) => void; |
| 67 | /** Collect stdout/stderr (bounded). */ |
| 68 | capture?: boolean; |
| 69 | maxCapture?: number; |
| 70 | } |
| 71 | |
| 72 | export interface ExecResult { |
| 73 | exitCode: number; |
| 74 | signal: NodeJS.Signals | null; |
| 75 | stdout: string; |
| 76 | stderr: string; |
| 77 | timedOut: boolean; |
| 78 | stdoutTruncated: boolean; |
| 79 | stderrTruncated: boolean; |
| 80 | } |
| 81 | |
| 82 | /** Kills a detached child's whole process group. */ |
| 83 | export function killTree(child: ChildProcess, graceMs = 5000): void { |
| 84 | if (child.pid === undefined || child.exitCode !== null || child.signalCode !== null) return; |
| 85 | const pid = child.pid; |
| 86 | const k = (sig: NodeJS.Signals) => { |
| 87 | try { |
| 88 | process.kill(-pid, sig); |
| 89 | } catch { |
| 90 | try { |
| 91 | child.kill(sig); |
| 92 | } catch { |
| 93 | /* gone */ |
| 94 | } |
| 95 | } |
| 96 | }; |
| 97 | k("SIGTERM"); |
| 98 | const t = setTimeout(() => k("SIGKILL"), graceMs); |
| 99 | t.unref(); |
| 100 | child.once("exit", () => clearTimeout(t)); |
| 101 | } |
| 102 | |
| 103 | /** Splits a stream into lines, invoking `cb` per line (partial last line flushed at end). */ |
| 104 | export class LineSplitter { |
| 105 | private buf = ""; |
| 106 | constructor(private cb: (line: string) => void) {} |
| 107 | write(chunk: string): void { |
| 108 | this.buf += chunk; |
| 109 | let i: number; |
| 110 | while ((i = this.buf.indexOf("\n")) >= 0) { |
| 111 | const line = this.buf.slice(0, i).replace(/\r$/, ""); |
| 112 | this.buf = this.buf.slice(i + 1); |
| 113 | this.cb(line); |
| 114 | } |
| 115 | } |
| 116 | end(): void { |
| 117 | if (this.buf.length) { |
| 118 | const l = this.buf.replace(/\r$/, ""); |
| 119 | this.buf = ""; |
| 120 | this.cb(l); |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | /** Spawns a process in its own process group and streams its output by line. */ |
| 126 | export function exec(cmd: string, args: string[], o: ExecOptions = {}): Promise<ExecResult> { |
| 127 | return new Promise((resolve) => { |
| 128 | const max = o.maxCapture ?? 1024 * 1024; |
| 129 | let stdout = ""; |
| 130 | let stderr = ""; |
| 131 | let stdoutTruncated = false; |
| 132 | let stderrTruncated = false; |
| 133 | let timedOut = false; |
| 134 | let child: ChildProcess; |
| 135 | try { |
| 136 | child = spawn(cmd, args, { |
| 137 | cwd: o.cwd, |
| 138 | env: o.env, |
| 139 | detached: true, |
| 140 | stdio: [o.input !== undefined ? "pipe" : "ignore", "pipe", "pipe"], |
| 141 | }); |
| 142 | } catch (e) { |
| 143 | resolve({ exitCode: 127, signal: null, stdout: "", stderr: String(e), timedOut: false, stdoutTruncated, stderrTruncated }); |
| 144 | return; |
| 145 | } |
| 146 | o.onSpawn?.(child); |
| 147 | const so = new LineSplitter((l) => o.onLine?.(l, "stdout")); |
| 148 | const se = new LineSplitter((l) => o.onLine?.(l, "stderr")); |
| 149 | child.stdout!.setEncoding("utf8"); |
| 150 | child.stderr!.setEncoding("utf8"); |
| 151 | child.stdout!.on("data", (d: string) => { |
| 152 | if (o.capture) { |
| 153 | if (stdout.length < max) stdout += d; |
| 154 | else stdoutTruncated = true; |
| 155 | } |
| 156 | so.write(d); |
| 157 | }); |
| 158 | child.stderr!.on("data", (d: string) => { |
| 159 | if (o.capture) { |
| 160 | if (stderr.length < max) stderr += d; |
| 161 | else stderrTruncated = true; |
| 162 | } |
| 163 | se.write(d); |
| 164 | }); |
| 165 | if (o.input !== undefined) { |
| 166 | child.stdin!.on("error", () => {}); |
| 167 | child.stdin!.end(o.input); |
| 168 | } |
| 169 | let timer: NodeJS.Timeout | undefined; |
| 170 | if (o.timeoutMs && o.timeoutMs > 0) { |
| 171 | timer = setTimeout(() => { |
| 172 | timedOut = true; |
| 173 | killTree(child); |
| 174 | }, o.timeoutMs); |
| 175 | } |
| 176 | let spawnError: Error | null = null; |
| 177 | child.on("error", (e) => { |
| 178 | spawnError = e; |
| 179 | }); |
| 180 | child.on("close", (code, signal) => { |
| 181 | if (timer) clearTimeout(timer); |
| 182 | so.end(); |
| 183 | se.end(); |
| 184 | if (stdout.length > max) { |
| 185 | stdout = stdout.slice(0, max); |
| 186 | stdoutTruncated = true; |
| 187 | } |
| 188 | if (stderr.length > max) { |
| 189 | stderr = stderr.slice(0, max); |
| 190 | stderrTruncated = true; |
| 191 | } |
| 192 | if (spawnError && code === null) { |
| 193 | const msg = (spawnError as NodeJS.ErrnoException).code === "ENOENT" ? `${cmd}: command not found` : String(spawnError); |
| 194 | o.onLine?.(msg, "stderr"); |
| 195 | resolve({ exitCode: 127, signal: null, stdout, stderr: stderr + msg, timedOut, stdoutTruncated, stderrTruncated }); |
| 196 | return; |
| 197 | } |
| 198 | resolve({ exitCode: code ?? (signal ? 128 + (constants.signals[signal] ?? 0) : 1), signal, stdout, stderr, timedOut, stdoutTruncated, stderrTruncated }); |
| 199 | }); |
| 200 | }); |
| 201 | } |
| 202 | |
| 203 | // ---------------------------------------------------------------- glob |
| 204 | |
| 205 | function globToRegex(pattern: string): RegExp { |
| 206 | let re = ""; |
| 207 | for (let i = 0; i < pattern.length; i++) { |
| 208 | const c = pattern[i]!; |
| 209 | if (c === "*") { |
| 210 | if (pattern[i + 1] === "*") { |
| 211 | // `**/` matches zero or more directories |
| 212 | if (pattern[i + 2] === "/") { |
| 213 | re += "(?:.*/)?"; |
| 214 | i += 2; |
| 215 | } else { |
| 216 | re += ".*"; |
| 217 | i++; |
| 218 | } |
| 219 | } else re += "[^/]*"; |
| 220 | } else if (c === "?") re += "[^/]"; |
| 221 | else if (c === "[") { |
| 222 | const j = pattern.indexOf("]", i); |
| 223 | if (j > i) { |
| 224 | re += pattern.slice(i, j + 1).replace(/^\[!/, "[^"); |
| 225 | i = j; |
| 226 | } else re += "\\["; |
| 227 | } else re += c.replace(/[.+^${}()|\\]/g, "\\$&"); |
| 228 | } |
| 229 | return new RegExp(`^${re}$`); |
| 230 | } |
| 231 | |
| 232 | function walk(root: string, rel: string, out: string[], skip: (rel: string) => boolean, includeDirs: boolean): void { |
| 233 | let entries; |
| 234 | try { |
| 235 | entries = readdirSync(path.join(root, rel), { withFileTypes: true }); |
| 236 | } catch { |
| 237 | return; |
| 238 | } |
| 239 | for (const e of entries) { |
| 240 | const r = rel ? `${rel}/${e.name}` : e.name; |
| 241 | if (skip(r)) continue; |
| 242 | if (e.isDirectory()) { |
| 243 | if (includeDirs) out.push(r + "/"); |
| 244 | walk(root, r, out, skip, includeDirs); |
| 245 | } else out.push(r); |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Expands glob patterns (relative to `root`, or absolute) into absolute file |
| 251 | * paths. Supports `*`, `**`, `?`, `[...]` and `!negation`. Literal paths |
| 252 | * (no glob chars) are returned as-is when they exist (files or directories). |
| 253 | */ |
| 254 | export function globPaths(root: string, patterns: string[], opts: { filesOnly?: boolean } = {}): string[] { |
| 255 | const include: Array<{ base: string; re: RegExp | null; literal: string | null }> = []; |
| 256 | const exclude: RegExp[] = []; |
| 257 | const results = new Set<string>(); |
| 258 | for (let p of patterns) { |
| 259 | p = p.trim(); |
| 260 | if (!p || p.startsWith("#")) continue; |
| 261 | const neg = p.startsWith("!"); |
| 262 | if (neg) p = p.slice(1); |
| 263 | if (p.startsWith("~/")) p = path.join(process.env.HOME ?? "/root", p.slice(2)); |
| 264 | const abs = path.isAbsolute(p) ? p : path.join(root, p); |
| 265 | if (neg) { |
| 266 | exclude.push(globToRegex(path.normalize(abs).replace(/\/$/, ""))); |
| 267 | exclude.push(globToRegex(path.normalize(abs).replace(/\/$/, "") + "/**")); |
| 268 | continue; |
| 269 | } |
| 270 | if (!/[*?[]/.test(abs)) { |
| 271 | include.push({ base: abs, re: null, literal: path.normalize(abs) }); |
| 272 | continue; |
| 273 | } |
| 274 | // base dir = longest prefix without glob chars |
| 275 | const parts = path.normalize(abs).split("/"); |
| 276 | const baseParts: string[] = []; |
| 277 | for (const part of parts) { |
| 278 | if (/[*?[]/.test(part)) break; |
| 279 | baseParts.push(part); |
| 280 | } |
| 281 | include.push({ base: baseParts.join("/") || "/", re: globToRegex(path.normalize(abs)), literal: null }); |
| 282 | } |
| 283 | for (const inc of include) { |
| 284 | if (inc.literal) { |
| 285 | if (existsSync(inc.literal)) { |
| 286 | if (opts.filesOnly && statSync(inc.literal).isDirectory()) { |
| 287 | const files: string[] = []; |
| 288 | walk(inc.literal, "", files, () => false, false); |
| 289 | for (const f of files) results.add(path.join(inc.literal, f)); |
| 290 | } else results.add(inc.literal); |
| 291 | } |
| 292 | continue; |
| 293 | } |
| 294 | const files: string[] = []; |
| 295 | walk(inc.base, "", files, (r) => r === ".git" || r.endsWith("/.git"), !opts.filesOnly); |
| 296 | for (const f of files) { |
| 297 | const full = path.join(inc.base, f.replace(/\/$/, "")); |
| 298 | if (inc.re!.test(full)) results.add(full); |
| 299 | } |
| 300 | } |
| 301 | let list = [...results]; |
| 302 | if (exclude.length) list = list.filter((f) => !exclude.some((re) => re.test(f))); |
| 303 | // drop entries that are inside another included directory (avoid duplicates in tarballs) |
| 304 | if (!opts.filesOnly) { |
| 305 | const set = new Set(list); |
| 306 | list = list.filter((f) => { |
| 307 | let d = path.dirname(f); |
| 308 | while (d !== "/" && d !== ".") { |
| 309 | if (set.has(d)) return false; |
| 310 | d = path.dirname(d); |
| 311 | } |
| 312 | return true; |
| 313 | }); |
| 314 | } |
| 315 | return list.sort(); |
| 316 | } |
| 317 | |
| 318 | /** `hashFiles()` as on GitHub: sha256 over the sha256 of each matched file (workspace-relative). */ |
| 319 | export function hashFiles(workspace: string, patterns: string[]): string { |
| 320 | const files = globPaths(workspace, patterns, { filesOnly: true }).filter((f) => f.startsWith(workspace + "/")); |
| 321 | if (files.length === 0) return ""; |
| 322 | const outer = createHash("sha256"); |
| 323 | for (const f of files) { |
| 324 | try { |
| 325 | outer.update(createHash("sha256").update(readFileSync(f)).digest()); |
| 326 | } catch { |
| 327 | /* unreadable: skip */ |
| 328 | } |
| 329 | } |
| 330 | return outer.digest("hex"); |
| 331 | } |
| 332 | |
| 333 | // ---------------------------------------------------------------- semver-ish |
| 334 | |
| 335 | export type Ver = [number, number, number]; |
| 336 | |
| 337 | export function parseVer(v: string): Ver | null { |
| 338 | const m = /^\s*[vV]?(?:go)?(\d+)(?:\.(\d+))?(?:\.(\d+))?/.exec(v); |
| 339 | if (!m) return null; |
| 340 | return [Number(m[1]), Number(m[2] ?? 0), Number(m[3] ?? 0)]; |
| 341 | } |
| 342 | |
| 343 | export function cmpVer(a: Ver, b: Ver): number { |
| 344 | return a[0] - b[0] || a[1] - b[1] || a[2] - b[2]; |
| 345 | } |
| 346 | |
| 347 | /** Matches a version against a range like `22`, `22.x`, `^20.1`, `>=18 <21`, `20 || 22`, `*`. */ |
| 348 | export function satisfies(version: string, range: string): boolean { |
| 349 | const v = parseVer(version); |
| 350 | if (!v) return false; |
| 351 | const r = range.trim(); |
| 352 | if (r === "" || r === "*" || r === "x" || /^(latest|current|node|stable)$/i.test(r)) return true; |
| 353 | return r.split("||").some((alt) => { |
| 354 | const comps = alt.trim().replace(/([<>=~^]+)\s+/g, "$1").split(/\s+/).filter(Boolean); |
| 355 | // hyphen range "a - b" |
| 356 | const hy = /^(\S+)\s+-\s+(\S+)$/.exec(alt.trim()); |
| 357 | if (hy) { |
| 358 | const lo = parseVer(hy[1]!); |
| 359 | const hi = parseVer(hy[2]!); |
| 360 | return !!lo && !!hi && cmpVer(v, lo) >= 0 && cmpVer(v, hi) <= 0; |
| 361 | } |
| 362 | return comps.every((c) => matchComparator(v, c)); |
| 363 | }); |
| 364 | } |
| 365 | |
| 366 | function matchComparator(v: Ver, c: string): boolean { |
| 367 | const m = /^(>=|<=|>|<|=|\^|~)?\s*[vV]?(.*)$/.exec(c)!; |
| 368 | const op = m[1] ?? ""; |
| 369 | const body = m[2]!; |
| 370 | const parts = body.split("."); |
| 371 | const nums: Array<number | null> = [0, 1, 2].map((i) => { |
| 372 | const p = parts[i]; |
| 373 | if (p === undefined || p === "x" || p === "X" || p === "*" || p === "") return null; |
| 374 | const n = parseInt(p, 10); |
| 375 | return Number.isNaN(n) ? null : n; |
| 376 | }); |
| 377 | if (nums[0] === null) return true; |
| 378 | const full: Ver = [nums[0]!, nums[1] ?? 0, nums[2] ?? 0]; |
| 379 | const specified = nums[1] === null ? 1 : nums[2] === null ? 2 : 3; |
| 380 | const cmp = cmpVer(v, full); |
| 381 | switch (op) { |
| 382 | case ">=": return cmp >= 0; |
| 383 | case "<=": return specified === 3 ? cmp <= 0 : cmpVer(v, bump(full, specified)) < 0; |
| 384 | case ">": return specified === 3 ? cmp > 0 : cmpVer(v, bump(full, specified)) >= 0; |
| 385 | case "<": return cmp < 0; |
| 386 | case "^": { |
| 387 | const hi: Ver = full[0] > 0 || specified === 1 ? [full[0] + 1, 0, 0] : full[1] > 0 || specified === 2 ? [0, full[1] + 1, 0] : [0, 0, full[2] + 1]; |
| 388 | return cmp >= 0 && cmpVer(v, hi) < 0; |
| 389 | } |
| 390 | case "~": { |
| 391 | const hi: Ver = specified === 1 ? [full[0] + 1, 0, 0] : [full[0], full[1] + 1, 0]; |
| 392 | return cmp >= 0 && cmpVer(v, hi) < 0; |
| 393 | } |
| 394 | default: |
| 395 | return cmp >= 0 && cmpVer(v, bump(full, specified)) < 0; |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | function bump(v: Ver, specified: number): Ver { |
| 400 | if (specified === 1) return [v[0] + 1, 0, 0]; |
| 401 | if (specified === 2) return [v[0], v[1] + 1, 0]; |
| 402 | return [v[0], v[1], v[2] + 1]; |
| 403 | } |
| 404 | |
| 405 | /** Picks the highest version from `versions` that satisfies `range`. */ |
| 406 | export function maxSatisfying(versions: string[], range: string): string | null { |
| 407 | let best: string | null = null; |
| 408 | let bestV: Ver | null = null; |
| 409 | for (const s of versions) { |
| 410 | if (!satisfies(s, range)) continue; |
| 411 | const v = parseVer(s)!; |
| 412 | if (!bestV || cmpVer(v, bestV) > 0) { |
| 413 | best = s; |
| 414 | bestV = v; |
| 415 | } |
| 416 | } |
| 417 | return best; |
| 418 | } |
| 419 | |
| 420 | export function runnerArch(): "X64" | "ARM64" | "ARM" | "X86" { |
| 421 | switch (process.arch) { |
| 422 | case "arm64": return "ARM64"; |
| 423 | case "arm": return "ARM"; |
| 424 | case "ia32": return "X86"; |
| 425 | default: return "X64"; |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | /** Splits a multi-line / comma-ish input into entries. */ |
| 430 | export function inputList(v: string | undefined, splitComma = false): string[] { |
| 431 | if (!v) return []; |
| 432 | return v |
| 433 | .split(splitComma ? /[\n,]/ : /\n/) |
| 434 | .map((s) => s.trim()) |
| 435 | .filter(Boolean); |
| 436 | } |
| 437 | |
| 438 | export function truthyInput(v: string | undefined, dflt: boolean): boolean { |
| 439 | if (v === undefined || v === "") return dflt; |
| 440 | return /^(true|yes|1|on)$/i.test(v.trim()); |
| 441 | } |