139 lines
3.9 KiB
Plaintext
139 lines
3.9 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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async function mvCopyPath(ctx, from, to, recursive) {
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const st = await ctx.vfs.lstat(from)
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if (!st) return false
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if (st.type === 'symlink') {
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await ctx.vfs.symlink(await ctx.vfs.readlink(from), to)
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return true
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}
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if (st.type === 'file') {
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const buf = await ctx.vfs.readFile(from)
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if (!buf) return false
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await ctx.vfs.writeFile(to, buf)
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return true
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}
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if (st.type === 'directory') {
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if (!recursive) return false
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await ctx.vfs.mkdir(to, { recursive: true })
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const names = await ctx.vfs.readdir(from)
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for (const n of names) {
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if (n === '.bareos_empty') continue
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const f = from.replace(/\/+$/, '') + '/' + n
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const t = to.replace(/\/+$/, '') + '/' + n
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if (!(await mvCopyPath(ctx, f, t, true))) return false
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}
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return true
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}
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return false
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}
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async function run(ctx, argv) {
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const paths = argv.slice(1).filter((a) => a && a !== '--')
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if (paths.length < 2) {
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ctx.console.error('usage: mv SOURCE... DEST')
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ctx.exitCode = 1
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return
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}
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const dest = paths.pop()
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const sources = paths
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let destIsDir = false
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try {
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const dst = await ctx.vfs.lstat(dest)
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destIsDir = !!(dst && dst.type === 'directory')
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} catch {
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destIsDir = false
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}
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if (sources.length > 1 && !destIsDir) {
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ctx.console.error('mv: target is not a directory')
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ctx.exitCode = 1
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return
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}
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for (const src of sources) {
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const base = src.replace(/\/+$/, '').split('/').pop() || src
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const target =
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destIsDir || sources.length > 1
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? dest.replace(/\/+$/, '') + '/' + base
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: dest
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try {
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const st = await ctx.vfs.lstat(src)
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const singleFileToFile =
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sources.length === 1 && !destIsDir && st && st.type === 'file'
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if (singleFileToFile) {
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const buf = await ctx.vfs.readFile(src)
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if (!buf) throw new Error('cannot read source')
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await ctx.vfs.writeFile(target, buf)
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await ctx.vfs.unlink(src)
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continue
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}
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if (!(await mvCopyPath(ctx, src, target, true))) {
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throw new Error('cannot copy')
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}
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await ctx.vfs.rm(src, { recursive: true, force: true })
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} catch (e) {
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ctx.console.error('mv: ' + src + ': ' + ((e && 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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