103 lines
2.8 KiB
Plaintext
103 lines
2.8 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
|
|
}
|
|
|
|
async function run(ctx, argv) {
|
|
for (let i = 1; i < argv.length; i++) {
|
|
if (argv[i] === '-h' || argv[i] === '--help') {
|
|
ctx.console.log('usage: sync\nFlush filesystem buffers (no-op on Bare OS; exits 0).')
|
|
return
|
|
}
|
|
if (argv[i].startsWith('-')) {
|
|
ctx.console.error('sync: unknown option ' + argv[i])
|
|
ctx.exitCode = 1
|
|
return
|
|
}
|
|
}
|
|
}
|