123 lines
2.9 KiB
Plaintext
123 lines
2.9 KiB
Plaintext
/** 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 =
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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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* rm — remove files or directories.
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* Flags: -r -R --recursive, -f --force, -- ; bundled e.g. -rf
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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 recursive = false
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let force = false
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const files = []
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let dash = false
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for (let i = 1; i < argv.length; i++) {
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const a = argv[i]
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if (dash) {
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files.push(a)
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continue
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}
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if (a === '--') {
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dash = true
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continue
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}
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if (a === '--recursive' || a === '-r' || a === '-R') {
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recursive = true
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continue
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}
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if (a === '--force' || a === '-f') {
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force = true
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continue
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}
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if (a.startsWith('-') && a.length > 1) {
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for (let j = 1; j < a.length; j++) {
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const c = a[j]
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if (c === 'r' || c === 'R') recursive = true
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else if (c === 'f') force = true
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}
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continue
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}
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files.push(a)
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}
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if (!files.length) {
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ctx.console.error('rm: missing operand')
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ctx.exitCode = 1
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return
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}
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const doRm =
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vfs && typeof vfs.rm === 'function'
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? (p) => vfs.rm(p, { recursive, force })
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: async (p) => {
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if (recursive) throw new Error('recursive rm not supported')
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return vfs.unlink(p)
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}
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for (const f of files) {
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try {
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await doRm(f)
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} catch (e) {
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if (force) continue
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ctx.console.error('rm: ' + f + ': ' + (e.message || e))
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ctx.exitCode = 1
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}
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}
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}
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