730 lines
18 KiB
Plaintext
730 lines
18 KiB
Plaintext
/* BARE_OS_BIN_API 1.0.0 — bump when staged /bin script semantics change (see developer guide). */
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/** Shared helpers for drive-resident /bin scripts (prepended before each command). */
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function bareStdin(ctx) {
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return typeof ctx.shellStdin === 'string' ? ctx.shellStdin : ''
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}
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/** @param {number} mode @param {'file' | 'directory' | 'symlink'} type */
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function bareFormatModeString(mode, type) {
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const typeChar = type === 'directory' ? 'd' : type === 'symlink' ? 'l' : '-'
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const perm = mode & 0o777
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const r = (bit) => (perm & bit ? 'r' : '-')
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const w = (bit) => (perm & bit ? 'w' : '-')
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const x = (bit) => (perm & bit ? 'x' : '-')
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return (
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typeChar +
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r(0o400) +
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w(0o200) +
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x(0o100) +
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r(0o040) +
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w(0o020) +
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x(0o010) +
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r(0o004) +
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w(0o002) +
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x(0o001)
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)
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}
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/** @param {number} mtimeMs @param {number} [nowMs] */
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function bareFormatLsMtime(mtimeMs, nowMs) {
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const now = nowMs != null ? nowMs : Date.now()
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const d = new Date(mtimeMs)
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const months = [
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'Jan',
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'Feb',
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'Mar',
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'Apr',
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'May',
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'Jun',
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'Jul',
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'Aug',
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'Sep',
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'Oct',
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'Nov',
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'Dec'
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]
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const mon = months[d.getMonth()]
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const day = String(d.getDate()).padStart(2, ' ')
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const sixMo = 180 * 24 * 3600 * 1000
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if (Math.abs(now - mtimeMs) > sixMo) {
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const yr = String(d.getFullYear()).padStart(4, ' ')
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return mon + ' ' + day + ' ' + yr
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}
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const hh = String(d.getHours()).padStart(2, '0')
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const mm = String(d.getMinutes()).padStart(2, '0')
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return mon + ' ' + day + ' ' + hh + ':' + mm
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}
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/** @param {number} size */
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function barePosixBlocks(size) {
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return Math.ceil(Number(size) / 512) || 0
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}
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/**
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* Raw stdout for NUL/binary when **`process.stdout.write`** is missing.
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* If **`ctx.bareOsBinWrite(Uint8Array|string)`** is set (tests / host), use it.
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* @param {Record<string, unknown>} ctx
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* @param {string | Uint8Array} chunk
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* @returns {boolean}
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*/
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function bareOsEmitRaw(ctx, chunk) {
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if (typeof ctx.bareOsBinWrite === 'function') {
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const b4 = ctx.b4a
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const u8 =
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typeof chunk === 'string'
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? b4 && typeof b4.from === 'function'
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? b4.from(chunk)
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: new TextEncoder().encode(chunk)
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: chunk
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ctx.bareOsBinWrite(u8 instanceof Uint8Array ? u8 : new Uint8Array(u8))
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return true
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}
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const w = globalThis.process?.stdout?.write
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if (typeof w === 'function') {
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w.call(globalThis.process.stdout, chunk)
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return true
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}
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return false
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}
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/** Session env map (`vfs.env`, then `ctx.env`). Never throws. */
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function bareOsEnv(ctx) {
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const v = ctx && ctx.vfs && ctx.vfs.env
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if (v && typeof v === 'object') return v
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const e = ctx && ctx.env
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if (e && typeof e === 'object') return e
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return {}
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}
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/**
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* Strict POSIX-ish decimal integer (no octal, no exponent, no empty).
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* @param {unknown} s
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* @returns {number}
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*/
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function bareOsParseDecInt(s) {
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const t = String(s == null ? '' : s).trim()
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if (!/^[+-]?(?:0|[1-9][0-9]*)$/.test(t)) return NaN
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const n = Number.parseInt(t, 10)
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return Number.isSafeInteger(n) ? n : NaN
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}
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/** @param {unknown} s */
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function bareOsParseNonNegInt(s) {
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const n = bareOsParseDecInt(s)
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return n >= 0 ? n : NaN
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}
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/**
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* @param {Record<string, unknown>} ctx
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* @param {string} name
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* @param {number} fallback
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* @param {number} [min]
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* @param {number} [max]
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*/
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function bareOsEnvInt(ctx, name, fallback, min, max) {
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const raw = bareOsEnv(ctx)[name]
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if (raw == null || raw === '') return fallback
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const n = Number.parseInt(String(raw), 10)
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if (!Number.isFinite(n)) return fallback
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let v = n
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if (min != null && v < min) v = min
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if (max != null && v > max) v = max
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return v
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}
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/**
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* @param {Record<string, unknown>} ctx
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* @param {string} msg
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* @param {number} [code]
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*/
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function bareOsFail(ctx, msg, code) {
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if (msg) ctx.console.error(msg)
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ctx.exitCode = code == null ? 1 : code
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}
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/** @param {unknown} e */
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function bareOsIsNotFoundErr(e) {
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const code = e && typeof e === 'object' ? e.code : ''
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if (code === 'ENOENT') return true
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const msg = String((e && e.message) || e || '')
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return /ENOENT|No such file|not found/i.test(msg)
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}
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/**
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* @param {Record<string, unknown>} ctx
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* @param {unknown} buf
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* @returns {Uint8Array}
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*/
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function bareOsToU8(ctx, buf) {
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if (!buf) return new Uint8Array(0)
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if (buf instanceof Uint8Array) return buf
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if (ctx && ctx.b4a && typeof ctx.b4a.from === 'function') return ctx.b4a.from(buf)
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return new Uint8Array(buf)
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}
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/** @param {string} dir @param {string} name */
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function bareOsJoinPath(dir, name) {
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const d = String(dir || '').replace(/\/+$/, '')
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const n = String(name || '').replace(/^\/+/, '')
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if (!d || d === '/') return '/' + n
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return d + '/' + n
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}
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/** @param {string} p */
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function bareOsBaseName(p) {
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const t = String(p || '').replace(/\/+$/, '')
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if (!t || t === '/') return t === '/' ? '/' : ''
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const i = t.lastIndexOf('/')
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return i < 0 ? t : t.slice(i + 1) || t
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}
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/** @param {string} p */
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function bareOsParentDir(p) {
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const t = String(p || '').replace(/\/+$/, '') || '/'
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if (t === '/') return '/'
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const i = t.lastIndexOf('/')
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return i <= 0 ? '/' : t.slice(0, i) || '/'
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}
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/** @param {string} p */
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function bareOsNormPath(p) {
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return String(p || '').replace(/\/+$/, '') || '/'
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}
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/**
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* @param {Record<string, unknown>} ctx
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* @param {string} p
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*/
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function bareOsResolvePath(ctx, p) {
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if (ctx && ctx.vfs && typeof ctx.vfs.resolveLogical === 'function') {
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try {
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return String(ctx.vfs.resolveLogical(p) || p)
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} catch {
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/* fall through */
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}
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}
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return String(p || '')
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}
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/**
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* True when dest is src or lives under src (self-copy / self-move).
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* @param {Record<string, unknown>} ctx
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* @param {string} src
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* @param {string} dest
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*/
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function bareOsDestInsideSrc(ctx, src, dest) {
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const s = bareOsNormPath(bareOsResolvePath(ctx, src))
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const d = bareOsNormPath(bareOsResolvePath(ctx, dest))
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if (s === d) return true
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if (s === '/') return d !== '/'
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return d === s || d.startsWith(s + '/')
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}
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const BARE_OS_B64_ALPH =
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'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
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/** @param {Uint8Array} u8 */
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function bareOsB64Encode(u8) {
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let out = ''
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let i = 0
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for (; i + 2 < u8.length; i += 3) {
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const n = (u8[i] << 16) | (u8[i + 1] << 8) | u8[i + 2]
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out +=
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BARE_OS_B64_ALPH[(n >> 18) & 63] +
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BARE_OS_B64_ALPH[(n >> 12) & 63] +
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BARE_OS_B64_ALPH[(n >> 6) & 63] +
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BARE_OS_B64_ALPH[n & 63]
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}
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const rest = u8.length - i
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if (rest === 1) {
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const n = u8[i] << 16
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out += BARE_OS_B64_ALPH[(n >> 18) & 63] + BARE_OS_B64_ALPH[(n >> 12) & 63] + '=='
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} else if (rest === 2) {
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const n = (u8[i] << 16) | (u8[i + 1] << 8)
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out +=
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BARE_OS_B64_ALPH[(n >> 18) & 63] +
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BARE_OS_B64_ALPH[(n >> 12) & 63] +
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BARE_OS_B64_ALPH[(n >> 6) & 63] +
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'='
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}
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return out
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}
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/**
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* RFC 4648 Base64 decode (also accepts URL-safe alphabet). Rejects junk.
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* @param {string} s
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* @returns {Uint8Array}
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*/
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function bareOsB64Decode(s) {
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const t = String(s).replace(/\s+/g, '')
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if (!t) return new Uint8Array(0)
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if (t.length % 4 === 1) throw new Error('invalid base64 length')
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let pad = 0
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if (t.endsWith('==')) pad = 2
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else if (t.endsWith('=')) pad = 1
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const body = pad ? t.slice(0, t.length - pad) : t
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const bytes = []
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let buf = 0
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let bits = 0
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for (let i = 0; i < body.length; i++) {
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const c = body[i]
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let v = BARE_OS_B64_ALPH.indexOf(c)
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if (v < 0) {
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if (c === '-') v = 62
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else if (c === '_') v = 63
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else throw new Error('invalid base64 character')
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}
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buf = (buf << 6) | v
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bits += 6
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if (bits >= 8) {
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bits -= 8
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bytes.push((buf >> bits) & 255)
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}
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}
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if (pad) {
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const want = Math.floor((body.length * 6) / 8)
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if (bytes.length > want) bytes.length = want
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}
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return new Uint8Array(bytes)
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}
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/**
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* @param {string} s
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* @returns {Uint8Array}
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*/
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function bareOsHexDecode(s) {
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const t = String(s).replace(/\s+/g, '')
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if (t.length % 2 !== 0) throw new Error('odd hex length')
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const out = new Uint8Array(t.length / 2)
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for (let i = 0; i < out.length; i++) {
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const pair = t.slice(i * 2, i * 2 + 2)
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if (!/^[0-9a-fA-F]{2}$/.test(pair)) throw new Error('invalid hex')
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out[i] = Number.parseInt(pair, 16)
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}
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return out
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}
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/** @param {Uint8Array} u8 */
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function bareOsHexEncode(u8) {
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let s = ''
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for (let i = 0; i < u8.length; i++) s += u8[i].toString(16).padStart(2, '0')
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return s
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}
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/**
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* @param {string} line
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* @param {string | null} delim
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* @param {number} start1
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* @param {number | null} end1
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*/
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function sortKeySlice(line, delim, start1, end1) {
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/** @type {string[]} */
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let fields
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if (delim != null) {
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if (delim === '') fields = line.split('')
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else fields = line.split(delim)
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} else {
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const t = line.trim()
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fields = t.length ? t.split(/\s+/) : []
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}
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const i0 = Math.max(0, start1 - 1)
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const i1 = end1 != null ? end1 : fields.length
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const slice = fields.slice(i0, i1)
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if (delim != null) return slice.join(delim)
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return slice.join(' ')
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}
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/**
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* @param {object} o
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* @param {string} o.line
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* @param {boolean} o.numeric
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* @param {boolean} o.fold
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* @param {number | null} o.keyStart
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* @param {number | null} o.keyEnd
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* @param {string | null} o.dForKey
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*/
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function sortKeyObj(o) {
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const keyText =
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o.keyStart != null
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? sortKeySlice(o.line, o.dForKey, o.keyStart, o.keyEnd)
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: o.line
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if (o.numeric) {
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const m = String(keyText).match(
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/^\s*(-?(?:\d+(?:\.\d*)?|\.\d+)(?:[eE][+-]?\d+)?)/
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)
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if (m) return { n: Number(m[1]), raw: keyText }
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return { n: Number.POSITIVE_INFINITY, raw: keyText }
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}
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if (o.fold) return { n: 0, raw: keyText.toLowerCase() }
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return { n: 0, raw: keyText }
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}
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/**
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* @param {Record<string, unknown> | undefined} ctx
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*/
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function sortLocaleTag(ctx) {
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const env =
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ctx && ctx.vfs && ctx.vfs.env && typeof ctx.vfs.env === 'object'
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? ctx.vfs.env
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: ctx && ctx.env && typeof ctx.env === 'object'
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? ctx.env
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: {}
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const t = String(
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/** @type {Record<string, string>} */ (env).LC_ALL ||
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/** @type {Record<string, string>} */ (env).LC_COLLATE ||
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'C'
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).trim()
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return t || 'C'
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}
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/**
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* @param {Record<string, unknown> | undefined} ctx
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* @param {string} a
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* @param {string} b
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*/
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function sortLocaleCompareRaw(ctx, a, b) {
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const tag = sortLocaleTag(ctx)
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if (tag === 'C' || tag === 'POSIX') {
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return a < b ? -1 : a > b ? 1 : 0
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}
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try {
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return String(a).localeCompare(String(b), tag, { sensitivity: 'variant' })
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} catch {
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return a < b ? -1 : a > b ? 1 : 0
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}
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}
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/**
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* @param {string} x
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* @param {string} y
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* @param {object} opts
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* @param {boolean} opts.numeric
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* @param {boolean} opts.reverse
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* @param {boolean} opts.fold
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* @param {number | null} opts.keyStart
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* @param {number | null} opts.keyEnd
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* @param {string | null} opts.dForKey
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* @param {Record<string, unknown> | undefined} [opts.ctx]
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* @returns {number}
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*/
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function sortCompareLines(x, y, opts) {
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const base = {
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numeric: opts.numeric,
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fold: opts.fold,
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keyStart: opts.keyStart,
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keyEnd: opts.keyEnd,
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dForKey: opts.dForKey
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}
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const kx = sortKeyObj({ ...base, line: x })
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const ky = sortKeyObj({ ...base, line: y })
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if (opts.numeric) {
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if (kx.n !== ky.n) {
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const ord = kx.n < ky.n ? -1 : 1
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return opts.reverse ? -ord : ord
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}
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}
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let cmp = sortLocaleCompareRaw(opts.ctx, kx.raw, ky.raw)
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if (cmp === 0) cmp = sortLocaleCompareRaw(opts.ctx, x, y)
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return opts.reverse ? -cmp : cmp
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}
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async function run(ctx, argv) {
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const vfs = ctx.vfs
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let numeric = false
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let reverse = false
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let uniq = false
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let fold = false
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/** @type {'off' | 'verbose' | 'quiet'} */
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let checkMode = 'off'
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let stable = false
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/** @type {string | null} */
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let outFile = null
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/** @type {string | undefined} */
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let delim
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/** @type {number | null} */
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let keyStart = null
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/** @type {number | null} */
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let keyEnd = null
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let i = 1
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while (i < argv.length) {
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const a = argv[i]
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if (a === '--') {
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i++
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break
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}
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if (a === '--check' || a === '--check=diagnose-first') {
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checkMode = 'verbose'
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i++
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continue
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}
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if (a === '--check=silent' || a === '--check=quiet') {
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checkMode = 'quiet'
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i++
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continue
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}
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if (a === '-C') {
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checkMode = 'quiet'
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i++
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continue
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}
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if (a === '-c') {
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checkMode = 'verbose'
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i++
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continue
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}
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if (a === '-s' || a === '--stable') {
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stable = true
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i++
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continue
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}
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if (a === '-o' || a === '--output') {
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const f = argv[++i]
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if (f === undefined) {
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ctx.console.error('sort: option requires an argument -- output')
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ctx.exitCode = 1
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return
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}
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outFile = f
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i++
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continue
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}
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if (a.startsWith('--output=')) {
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outFile = a.slice('--output='.length) || null
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if (!outFile) {
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ctx.console.error('sort: option requires an argument -- output')
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ctx.exitCode = 1
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return
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}
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i++
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continue
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}
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if (a === '-n' || a === '--numeric-sort' || a === '-g') {
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numeric = true
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i++
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continue
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|
}
|
|
if (a === '-r' || a === '--reverse') {
|
|
reverse = true
|
|
i++
|
|
continue
|
|
}
|
|
if (a === '-u' || a === '--unique') {
|
|
uniq = true
|
|
i++
|
|
continue
|
|
}
|
|
if (a === '-f' || a === '--ignore-case') {
|
|
fold = true
|
|
i++
|
|
continue
|
|
}
|
|
if (a === '-t' || a === '--field-separator') {
|
|
const d = argv[++i]
|
|
if (d === undefined) {
|
|
ctx.console.error('sort: option requires an argument -- t')
|
|
ctx.exitCode = 1
|
|
return
|
|
}
|
|
delim = d === '\\t' ? '\t' : d
|
|
i++
|
|
continue
|
|
}
|
|
if (a.startsWith('-t') && a.length > 2) {
|
|
delim = a.slice(2) === 't' ? '\t' : a.slice(2)
|
|
i++
|
|
continue
|
|
}
|
|
if (a === '-k' || a === '--key') {
|
|
const spec = argv[++i]
|
|
if (spec === undefined) {
|
|
ctx.console.error('sort: option requires an argument -- k')
|
|
ctx.exitCode = 1
|
|
return
|
|
}
|
|
const parts = String(spec).split(',')
|
|
keyStart = Number.parseInt(parts[0], 10)
|
|
keyEnd =
|
|
parts[1] !== undefined && parts[1] !== ''
|
|
? Number.parseInt(parts[1], 10)
|
|
: null
|
|
if (!Number.isFinite(keyStart) || keyStart < 1) {
|
|
ctx.console.error('sort: invalid key specification')
|
|
ctx.exitCode = 1
|
|
return
|
|
}
|
|
if (
|
|
keyEnd != null &&
|
|
(!Number.isFinite(keyEnd) || keyEnd < keyStart)
|
|
) {
|
|
ctx.console.error('sort: invalid key specification')
|
|
ctx.exitCode = 1
|
|
return
|
|
}
|
|
i++
|
|
continue
|
|
}
|
|
if (/^-k\d/.test(a)) {
|
|
const spec = a.slice(2)
|
|
const parts = String(spec).split(',')
|
|
keyStart = Number.parseInt(parts[0], 10)
|
|
keyEnd =
|
|
parts[1] !== undefined && parts[1] !== ''
|
|
? Number.parseInt(parts[1], 10)
|
|
: null
|
|
if (!Number.isFinite(keyStart) || keyStart < 1) {
|
|
ctx.console.error('sort: invalid key specification')
|
|
ctx.exitCode = 1
|
|
return
|
|
}
|
|
i++
|
|
continue
|
|
}
|
|
if (a.startsWith('-') && a.length > 1) {
|
|
let j = 1
|
|
let ok = true
|
|
while (j < a.length) {
|
|
const c = a[j++]
|
|
if (c === 'n') numeric = true
|
|
else if (c === 'r') reverse = true
|
|
else if (c === 'u') uniq = true
|
|
else if (c === 'f') fold = true
|
|
else if (c === 'c') checkMode = 'verbose'
|
|
else if (c === 'C') checkMode = 'quiet'
|
|
else if (c === 's') stable = true
|
|
else {
|
|
ok = false
|
|
break
|
|
}
|
|
}
|
|
if (ok) {
|
|
i++
|
|
continue
|
|
}
|
|
}
|
|
break
|
|
}
|
|
|
|
const files = argv.slice(i).filter((x) => x !== '--')
|
|
/** @type {string[]} */
|
|
let lines = []
|
|
if (!files.length) {
|
|
const s = bareStdin(ctx)
|
|
lines = s.length ? s.split('\n') : []
|
|
if (lines.length && lines[lines.length - 1] === '') lines.pop()
|
|
} else {
|
|
for (const f of files) {
|
|
if (f === '-') {
|
|
const s = bareStdin(ctx)
|
|
const part = s.length ? s.split('\n') : []
|
|
if (part.length && part[part.length - 1] === '') part.pop()
|
|
lines.push(...part)
|
|
continue
|
|
}
|
|
const buf = await vfs.readFile(f)
|
|
if (!buf) {
|
|
ctx.console.error('sort: ' + f + ': No such file')
|
|
ctx.exitCode = 1
|
|
continue
|
|
}
|
|
const part = ctx.b4a.toString(buf).split('\n')
|
|
if (part.length && part[part.length - 1] === '') part.pop()
|
|
lines.push(...part)
|
|
}
|
|
}
|
|
|
|
const dForKey = delim === undefined ? null : delim
|
|
const cmpOpts = {
|
|
numeric,
|
|
reverse,
|
|
fold,
|
|
keyStart,
|
|
keyEnd,
|
|
dForKey,
|
|
ctx
|
|
}
|
|
|
|
if (checkMode !== 'off') {
|
|
const checkLabel = files.length === 1 ? files[0] : '-'
|
|
for (let li = 0; li < lines.length - 1; li++) {
|
|
const aLine = lines[li]
|
|
const bLine = lines[li + 1]
|
|
const c = sortCompareLines(aLine, bLine, cmpOpts)
|
|
if (uniq && c === 0) {
|
|
ctx.exitCode = 1
|
|
if (checkMode === 'verbose') {
|
|
ctx.console.error(
|
|
'sort: ' +
|
|
checkLabel +
|
|
':' +
|
|
(li + 2) +
|
|
': disorder: ' +
|
|
bLine
|
|
)
|
|
}
|
|
return
|
|
}
|
|
if (c > 0) {
|
|
ctx.exitCode = 1
|
|
if (checkMode === 'verbose') {
|
|
ctx.console.error(
|
|
'sort: ' +
|
|
checkLabel +
|
|
':' +
|
|
(li + 2) +
|
|
': disorder: ' +
|
|
bLine
|
|
)
|
|
}
|
|
return
|
|
}
|
|
}
|
|
ctx.exitCode = 0
|
|
return
|
|
}
|
|
|
|
/** @param {string} x
|
|
* @param {string} y */
|
|
function cmpPair(x, y) {
|
|
const primary = sortCompareLines(x, y, cmpOpts)
|
|
if (primary !== 0 || !stable) return primary
|
|
return 0
|
|
}
|
|
|
|
if (stable) {
|
|
const decorated = lines.map((line, idx) => ({ line, idx }))
|
|
decorated.sort((a, b) => {
|
|
const p = sortCompareLines(a.line, b.line, cmpOpts)
|
|
if (p !== 0) return p
|
|
return a.idx - b.idx
|
|
})
|
|
lines = decorated.map((d) => d.line)
|
|
} else {
|
|
lines.sort(cmpPair)
|
|
}
|
|
|
|
if (uniq) {
|
|
const out = []
|
|
let prev = null
|
|
for (const ln of lines) {
|
|
if (prev != null && sortCompareLines(prev, ln, cmpOpts) === 0) continue
|
|
out.push(ln)
|
|
prev = ln
|
|
}
|
|
lines = out
|
|
}
|
|
|
|
const body = lines.length ? lines.join('\n') + '\n' : ''
|
|
|
|
if (outFile != null) {
|
|
try {
|
|
await vfs.writeFile(outFile, ctx.b4a.from(body))
|
|
} catch (e) {
|
|
ctx.console.error('sort: ' + outFile + ': ' + (e.message || e))
|
|
ctx.exitCode = 1
|
|
return
|
|
}
|
|
} else if (lines.length) {
|
|
ctx.console.log(lines.join('\n'))
|
|
}
|
|
}
|