482 lines
13 KiB
Plaintext
482 lines
13 KiB
Plaintext
/* BARE_OS_BIN_API 1.0.0 — bump when staged /bin script semantics change (see developer guide). */
|
|
/** Shared helpers for drive-resident /bin scripts (prepended before each command). */
|
|
function bareStdin(ctx) {
|
|
return typeof ctx.shellStdin === 'string' ? ctx.shellStdin : ''
|
|
}
|
|
|
|
/** @param {number} mode @param {'file' | 'directory' | 'symlink'} type */
|
|
function bareFormatModeString(mode, type) {
|
|
const typeChar = type === 'directory' ? 'd' : type === 'symlink' ? 'l' : '-'
|
|
const perm = mode & 0o777
|
|
const r = (bit) => (perm & bit ? 'r' : '-')
|
|
const w = (bit) => (perm & bit ? 'w' : '-')
|
|
const x = (bit) => (perm & bit ? 'x' : '-')
|
|
return (
|
|
typeChar +
|
|
r(0o400) +
|
|
w(0o200) +
|
|
x(0o100) +
|
|
r(0o040) +
|
|
w(0o020) +
|
|
x(0o010) +
|
|
r(0o004) +
|
|
w(0o002) +
|
|
x(0o001)
|
|
)
|
|
}
|
|
|
|
/** @param {number} mtimeMs @param {number} [nowMs] */
|
|
function bareFormatLsMtime(mtimeMs, nowMs) {
|
|
const now = nowMs != null ? nowMs : Date.now()
|
|
const d = new Date(mtimeMs)
|
|
const months = [
|
|
'Jan',
|
|
'Feb',
|
|
'Mar',
|
|
'Apr',
|
|
'May',
|
|
'Jun',
|
|
'Jul',
|
|
'Aug',
|
|
'Sep',
|
|
'Oct',
|
|
'Nov',
|
|
'Dec'
|
|
]
|
|
const mon = months[d.getMonth()]
|
|
const day = String(d.getDate()).padStart(2, ' ')
|
|
const sixMo = 180 * 24 * 3600 * 1000
|
|
if (Math.abs(now - mtimeMs) > sixMo) {
|
|
const yr = String(d.getFullYear()).padStart(4, ' ')
|
|
return mon + ' ' + day + ' ' + yr
|
|
}
|
|
const hh = String(d.getHours()).padStart(2, '0')
|
|
const mm = String(d.getMinutes()).padStart(2, '0')
|
|
return mon + ' ' + day + ' ' + hh + ':' + mm
|
|
}
|
|
|
|
/** @param {number} size */
|
|
function barePosixBlocks(size) {
|
|
return Math.ceil(Number(size) / 512) || 0
|
|
}
|
|
|
|
/**
|
|
* Raw stdout for NUL/binary when **`process.stdout.write`** is missing.
|
|
* If **`ctx.bareOsBinWrite(Uint8Array|string)`** is set (tests / host), use it.
|
|
* @param {Record<string, unknown>} ctx
|
|
* @param {string | Uint8Array} chunk
|
|
* @returns {boolean}
|
|
*/
|
|
function bareOsEmitRaw(ctx, chunk) {
|
|
if (typeof ctx.bareOsBinWrite === 'function') {
|
|
const b4 = ctx.b4a
|
|
const u8 =
|
|
typeof chunk === 'string'
|
|
? b4 && typeof b4.from === 'function'
|
|
? b4.from(chunk)
|
|
: new TextEncoder().encode(chunk)
|
|
: chunk
|
|
ctx.bareOsBinWrite(u8 instanceof Uint8Array ? u8 : new Uint8Array(u8))
|
|
return true
|
|
}
|
|
const w = globalThis.process?.stdout?.write
|
|
if (typeof w === 'function') {
|
|
w.call(globalThis.process.stdout, chunk)
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
/** Session env map (`vfs.env`, then `ctx.env`). Never throws. */
|
|
function bareOsEnv(ctx) {
|
|
const v = ctx && ctx.vfs && ctx.vfs.env
|
|
if (v && typeof v === 'object') return v
|
|
const e = ctx && ctx.env
|
|
if (e && typeof e === 'object') return e
|
|
return {}
|
|
}
|
|
|
|
/**
|
|
* Strict POSIX-ish decimal integer (no octal, no exponent, no empty).
|
|
* @param {unknown} s
|
|
* @returns {number}
|
|
*/
|
|
function bareOsParseDecInt(s) {
|
|
const t = String(s == null ? '' : s).trim()
|
|
if (!/^[+-]?(?:0|[1-9][0-9]*)$/.test(t)) return NaN
|
|
const n = Number.parseInt(t, 10)
|
|
return Number.isSafeInteger(n) ? n : NaN
|
|
}
|
|
|
|
/** @param {unknown} s */
|
|
function bareOsParseNonNegInt(s) {
|
|
const n = bareOsParseDecInt(s)
|
|
return n >= 0 ? n : NaN
|
|
}
|
|
|
|
/**
|
|
* @param {Record<string, unknown>} ctx
|
|
* @param {string} name
|
|
* @param {number} fallback
|
|
* @param {number} [min]
|
|
* @param {number} [max]
|
|
*/
|
|
function bareOsEnvInt(ctx, name, fallback, min, max) {
|
|
const raw = bareOsEnv(ctx)[name]
|
|
if (raw == null || raw === '') return fallback
|
|
const n = Number.parseInt(String(raw), 10)
|
|
if (!Number.isFinite(n)) return fallback
|
|
let v = n
|
|
if (min != null && v < min) v = min
|
|
if (max != null && v > max) v = max
|
|
return v
|
|
}
|
|
|
|
/**
|
|
* @param {Record<string, unknown>} ctx
|
|
* @param {string} msg
|
|
* @param {number} [code]
|
|
*/
|
|
function bareOsFail(ctx, msg, code) {
|
|
if (msg) ctx.console.error(msg)
|
|
ctx.exitCode = code == null ? 1 : code
|
|
}
|
|
|
|
/** @param {unknown} e */
|
|
function bareOsIsNotFoundErr(e) {
|
|
const code = e && typeof e === 'object' ? e.code : ''
|
|
if (code === 'ENOENT') return true
|
|
const msg = String((e && e.message) || e || '')
|
|
return /ENOENT|No such file|not found/i.test(msg)
|
|
}
|
|
|
|
/**
|
|
* @param {Record<string, unknown>} ctx
|
|
* @param {unknown} buf
|
|
* @returns {Uint8Array}
|
|
*/
|
|
function bareOsToU8(ctx, buf) {
|
|
if (!buf) return new Uint8Array(0)
|
|
if (buf instanceof Uint8Array) return buf
|
|
if (ctx && ctx.b4a && typeof ctx.b4a.from === 'function') return ctx.b4a.from(buf)
|
|
return new Uint8Array(buf)
|
|
}
|
|
|
|
/** @param {string} dir @param {string} name */
|
|
function bareOsJoinPath(dir, name) {
|
|
const d = String(dir || '').replace(/\/+$/, '')
|
|
const n = String(name || '').replace(/^\/+/, '')
|
|
if (!d || d === '/') return '/' + n
|
|
return d + '/' + n
|
|
}
|
|
|
|
/** @param {string} p */
|
|
function bareOsBaseName(p) {
|
|
const t = String(p || '').replace(/\/+$/, '')
|
|
if (!t || t === '/') return t === '/' ? '/' : ''
|
|
const i = t.lastIndexOf('/')
|
|
return i < 0 ? t : t.slice(i + 1) || t
|
|
}
|
|
|
|
/** @param {string} p */
|
|
function bareOsParentDir(p) {
|
|
const t = String(p || '').replace(/\/+$/, '') || '/'
|
|
if (t === '/') return '/'
|
|
const i = t.lastIndexOf('/')
|
|
return i <= 0 ? '/' : t.slice(0, i) || '/'
|
|
}
|
|
|
|
/** @param {string} p */
|
|
function bareOsNormPath(p) {
|
|
return String(p || '').replace(/\/+$/, '') || '/'
|
|
}
|
|
|
|
/**
|
|
* @param {Record<string, unknown>} ctx
|
|
* @param {string} p
|
|
*/
|
|
function bareOsResolvePath(ctx, p) {
|
|
if (ctx && ctx.vfs && typeof ctx.vfs.resolveLogical === 'function') {
|
|
try {
|
|
return String(ctx.vfs.resolveLogical(p) || p)
|
|
} catch {
|
|
/* fall through */
|
|
}
|
|
}
|
|
return String(p || '')
|
|
}
|
|
|
|
/**
|
|
* True when dest is src or lives under src (self-copy / self-move).
|
|
* @param {Record<string, unknown>} ctx
|
|
* @param {string} src
|
|
* @param {string} dest
|
|
*/
|
|
function bareOsDestInsideSrc(ctx, src, dest) {
|
|
const s = bareOsNormPath(bareOsResolvePath(ctx, src))
|
|
const d = bareOsNormPath(bareOsResolvePath(ctx, dest))
|
|
if (s === d) return true
|
|
if (s === '/') return d !== '/'
|
|
return d === s || d.startsWith(s + '/')
|
|
}
|
|
|
|
const BARE_OS_B64_ALPH =
|
|
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
|
|
|
|
/** @param {Uint8Array} u8 */
|
|
function bareOsB64Encode(u8) {
|
|
let out = ''
|
|
let i = 0
|
|
for (; i + 2 < u8.length; i += 3) {
|
|
const n = (u8[i] << 16) | (u8[i + 1] << 8) | u8[i + 2]
|
|
out +=
|
|
BARE_OS_B64_ALPH[(n >> 18) & 63] +
|
|
BARE_OS_B64_ALPH[(n >> 12) & 63] +
|
|
BARE_OS_B64_ALPH[(n >> 6) & 63] +
|
|
BARE_OS_B64_ALPH[n & 63]
|
|
}
|
|
const rest = u8.length - i
|
|
if (rest === 1) {
|
|
const n = u8[i] << 16
|
|
out += BARE_OS_B64_ALPH[(n >> 18) & 63] + BARE_OS_B64_ALPH[(n >> 12) & 63] + '=='
|
|
} else if (rest === 2) {
|
|
const n = (u8[i] << 16) | (u8[i + 1] << 8)
|
|
out +=
|
|
BARE_OS_B64_ALPH[(n >> 18) & 63] +
|
|
BARE_OS_B64_ALPH[(n >> 12) & 63] +
|
|
BARE_OS_B64_ALPH[(n >> 6) & 63] +
|
|
'='
|
|
}
|
|
return out
|
|
}
|
|
|
|
/**
|
|
* RFC 4648 Base64 decode (also accepts URL-safe alphabet). Rejects junk.
|
|
* @param {string} s
|
|
* @returns {Uint8Array}
|
|
*/
|
|
function bareOsB64Decode(s) {
|
|
const t = String(s).replace(/\s+/g, '')
|
|
if (!t) return new Uint8Array(0)
|
|
if (t.length % 4 === 1) throw new Error('invalid base64 length')
|
|
let pad = 0
|
|
if (t.endsWith('==')) pad = 2
|
|
else if (t.endsWith('=')) pad = 1
|
|
const body = pad ? t.slice(0, t.length - pad) : t
|
|
const bytes = []
|
|
let buf = 0
|
|
let bits = 0
|
|
for (let i = 0; i < body.length; i++) {
|
|
const c = body[i]
|
|
let v = BARE_OS_B64_ALPH.indexOf(c)
|
|
if (v < 0) {
|
|
if (c === '-') v = 62
|
|
else if (c === '_') v = 63
|
|
else throw new Error('invalid base64 character')
|
|
}
|
|
buf = (buf << 6) | v
|
|
bits += 6
|
|
if (bits >= 8) {
|
|
bits -= 8
|
|
bytes.push((buf >> bits) & 255)
|
|
}
|
|
}
|
|
if (pad) {
|
|
const want = Math.floor((body.length * 6) / 8)
|
|
if (bytes.length > want) bytes.length = want
|
|
}
|
|
return new Uint8Array(bytes)
|
|
}
|
|
|
|
/**
|
|
* @param {string} s
|
|
* @returns {Uint8Array}
|
|
*/
|
|
function bareOsHexDecode(s) {
|
|
const t = String(s).replace(/\s+/g, '')
|
|
if (t.length % 2 !== 0) throw new Error('odd hex length')
|
|
const out = new Uint8Array(t.length / 2)
|
|
for (let i = 0; i < out.length; i++) {
|
|
const pair = t.slice(i * 2, i * 2 + 2)
|
|
if (!/^[0-9a-fA-F]{2}$/.test(pair)) throw new Error('invalid hex')
|
|
out[i] = Number.parseInt(pair, 16)
|
|
}
|
|
return out
|
|
}
|
|
|
|
/** @param {Uint8Array} u8 */
|
|
function bareOsHexEncode(u8) {
|
|
let s = ''
|
|
for (let i = 0; i < u8.length; i++) s += u8[i].toString(16).padStart(2, '0')
|
|
return s
|
|
}
|
|
|
|
async function run(ctx, argv) {
|
|
let human = false
|
|
const paths = []
|
|
for (let i = 1; i < argv.length; i++) {
|
|
const a = argv[i]
|
|
if (a === '--help') {
|
|
ctx.console.log(
|
|
'usage: df [-h] [FILE]...\nSynthetic disk free for Bare OS (Hyperdrive model; not block devices).'
|
|
)
|
|
return
|
|
}
|
|
if (a === '-h' || a === '--human-readable') {
|
|
human = true
|
|
continue
|
|
}
|
|
if (a.startsWith('-')) {
|
|
ctx.console.error('df: unsupported option ' + a)
|
|
ctx.exitCode = 1
|
|
return
|
|
}
|
|
paths.push(a)
|
|
}
|
|
function fmtK(n) {
|
|
if (!human) return String(n)
|
|
if (n < 1024) return n + 'K'
|
|
if (n < 1024 * 1024) return (n / 1024).toFixed(1) + 'M'
|
|
return (n / 1024 / 1024).toFixed(1) + 'G'
|
|
}
|
|
function parseMounts(text) {
|
|
const out = []
|
|
const lines = String(text || '')
|
|
.split('\n')
|
|
.map((s) => s.trim())
|
|
.filter(Boolean)
|
|
for (const line of lines) {
|
|
const cols = line.split(/\s+/)
|
|
if (cols.length < 4) continue
|
|
out.push({
|
|
filesystem: cols[0],
|
|
mountpoint: cols[1],
|
|
fstype: cols[2],
|
|
options: cols[3]
|
|
})
|
|
}
|
|
return out
|
|
}
|
|
function normalizePath(p) {
|
|
const s = String(p || '').trim()
|
|
if (!s) return '/'
|
|
if (s === '/') return '/'
|
|
return s.replace(/\/+$/, '') || '/'
|
|
}
|
|
function mountForPath(p, mounts) {
|
|
const path = normalizePath(p)
|
|
let best = null
|
|
for (const m of mounts) {
|
|
const mp = normalizePath(m.mountpoint)
|
|
if (mp === '/') {
|
|
if (!best) best = m
|
|
continue
|
|
}
|
|
if (path === mp || path.startsWith(mp + '/')) {
|
|
if (!best || mp.length > normalizePath(best.mountpoint).length) best = m
|
|
}
|
|
}
|
|
return best
|
|
}
|
|
function statsFromSv(sv, fallbackTotalK, fallbackUsedK) {
|
|
if (sv && typeof sv.f_blocks === 'number' && typeof sv.f_bfree === 'number') {
|
|
const bsize = typeof sv.f_bsize === 'number' ? sv.f_bsize : 4096
|
|
const totalK = Math.max(1024, Math.ceil((sv.f_blocks * bsize) / 1024))
|
|
const freeB = sv.f_bavail ?? sv.f_bfree
|
|
const freeK = Math.max(0, Math.ceil((freeB * bsize) / 1024))
|
|
const usedK = Math.max(0, totalK - freeK)
|
|
return { totalK, usedK, freeK }
|
|
}
|
|
const totalK = Math.max(1024, Number(fallbackTotalK) || 1024)
|
|
const usedK = Math.max(0, Number(fallbackUsedK) || 0)
|
|
return { totalK, usedK, freeK: Math.max(0, totalK - usedK) }
|
|
}
|
|
|
|
let totalK = 1024 * 1024
|
|
let usedK = 4096
|
|
/** @type {Record<string, unknown> | null} */
|
|
let resources = null
|
|
try {
|
|
const buf = await ctx.vfs.readFile('/proc/bare_os_quotas')
|
|
if (buf) {
|
|
const j = JSON.parse(ctx.b4a.toString(buf))
|
|
if (j && typeof j.pipelineMaxBytes === 'number')
|
|
totalK = Math.max(1024, Math.ceil(j.pipelineMaxBytes / 1024) * 1024)
|
|
}
|
|
} catch {
|
|
/* ignore */
|
|
}
|
|
try {
|
|
const rbuf = await ctx.vfs.readFile('/proc/bare_os_resources')
|
|
if (rbuf) {
|
|
const j = JSON.parse(ctx.b4a.toString(rbuf))
|
|
resources = j && typeof j === 'object' ? j : null
|
|
const sv = j && j.statvfs
|
|
const st = statsFromSv(sv, totalK, usedK)
|
|
totalK = st.totalK
|
|
usedK = st.usedK
|
|
}
|
|
} catch {
|
|
/* ignore */
|
|
}
|
|
/** @type {{ filesystem: string, mountpoint: string, fstype: string, options: string }[]} */
|
|
let mounts = []
|
|
try {
|
|
const mbuf = await ctx.vfs.readFile('/proc/mounts')
|
|
if (mbuf) mounts = parseMounts(ctx.b4a.toString(mbuf))
|
|
} catch {
|
|
/* ignore */
|
|
}
|
|
if (!mounts.length) {
|
|
mounts = [
|
|
{ filesystem: 'bare-hyperdrive', mountpoint: '/', fstype: 'hyperdrive', options: 'ro' }
|
|
]
|
|
}
|
|
/** @type {typeof mounts} */
|
|
let selected = mounts
|
|
if (paths.length) {
|
|
const byMount = new Map()
|
|
for (const p of paths) {
|
|
const m = mountForPath(p, mounts)
|
|
if (m) byMount.set(normalizePath(m.mountpoint), m)
|
|
}
|
|
selected = [...byMount.values()]
|
|
}
|
|
if (!selected.length) {
|
|
ctx.console.error('df: no matching filesystems')
|
|
ctx.exitCode = 1
|
|
return
|
|
}
|
|
const sv =
|
|
resources &&
|
|
typeof resources === 'object' &&
|
|
resources.statvfs &&
|
|
typeof resources.statvfs === 'object'
|
|
? resources.statvfs
|
|
: null
|
|
const sysSv =
|
|
sv && typeof sv.systemDrive === 'object' && sv.systemDrive
|
|
? sv.systemDrive
|
|
: sv
|
|
const base = statsFromSv(sysSv, totalK, usedK)
|
|
|
|
ctx.console.log('Filesystem 1K-blocks Used Available Use% Mounted on')
|
|
for (const m of selected) {
|
|
const st = base
|
|
const pct = st.totalK > 0 ? Math.min(100, Math.round((st.usedK / st.totalK) * 100)) : 0
|
|
ctx.console.log(
|
|
String(m.filesystem || 'bare-hyperdrive').padEnd(15) +
|
|
' ' +
|
|
fmtK(st.totalK).padStart(12) +
|
|
' ' +
|
|
fmtK(st.usedK).padStart(8) +
|
|
' ' +
|
|
fmtK(st.freeK).padStart(10) +
|
|
' ' +
|
|
String(pct).padStart(3) +
|
|
'% ' +
|
|
String(m.mountpoint || '/')
|
|
)
|
|
}
|
|
}
|