Raven Scott
4fa8c14079
BARE_OS_SHELL_STREAMING=1, BARE_OS_SHELL_STREAMING_MULT=2, BARE_OS_PIPELINE_MAX_BYTES (512 MiB), and BARE_OS_PIPELINE_MAX_LINES (2M) so the high-throughput ~512 MiB burst profile does not require pre-launch exports. Align getconf Tier-1 statics with those bases; note legacy rc.profile exports; refresh handbook, environment appendix, cookbook, and bare-os-booter CHANGELOG.
299 lines
10 KiB
Plaintext
299 lines
10 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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/**
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* Subset of POSIX.1-2017 getconf — fixed values for Bare OS (no host sysconf).
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* Unknown names exit with status 1 (matches common getconf for invalid var).
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* Live pathconf: **`getconf NAME /absolute/path`** delegates to **`ctx.bareOsPathconf`** when set.
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*/
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const CONF = {
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PATH_MAX: '4096',
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NAME_MAX: '255',
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/** POSIX minimum for ARG_MAX; Bare uses a conservative cap for runBinCommand argv. */
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_POSIX_ARG_MAX: '4096',
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ARG_MAX: '262144',
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LINE_MAX: '2048',
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/** POSIX.1-2008 */
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_POSIX_VERSION: '200809',
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_POSIX2_VERSION: '200809',
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NGROUPS_MAX: '32',
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OPEN_MAX: '256',
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STREAM_MAX: '256',
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TZNAME_MAX: '32',
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_POSIX_CHOWN_RESTRICTED: '1',
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_POSIX_NO_TRUNC: '1',
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_POSIX_VDISABLE: '0',
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_POSIX_JOB_CONTROL: '0',
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_POSIX_SAVED_IDS: '0',
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/** Named segments under `/dev/shm` (in-memory; not a host shm_open). */
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_POSIX_SHARED_MEMORY_OBJECTS: '1',
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_POSIX_MESSAGE_PASSING: '1',
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_POSIX_ASYNCHRONOUS_IO: '0',
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/** Bare shell line length (reasonable REPL limit, not a hard kernel cap). */
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BARE_OS_INPUT_LINE_MAX: '8192',
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/** Defaults for simulated pipelines (stock booter seeds larger session env when host is silent; Tier-2 live caps differ); see handbook §3. */
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BARE_OS_PIPELINE_MAX_STAGES: '32',
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BARE_OS_PIPELINE_MAX_BYTES: '536870912',
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BARE_OS_PIPELINE_MAX_LINES: '2000000',
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/** Default cap for find -exec/-ok invocations per run (override with env). */
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BARE_OS_FIND_EXEC_MAX: '64',
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/** Max lines `yes` prints before stopping (override with BARE_OS_YES_MAX_LINES). */
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BARE_OS_YES_MAX_LINES: '100000',
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/** Max input lines `shuf` will hold in memory (override with BARE_OS_SHUF_MAX_LINES). */
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BARE_OS_SHUF_MAX_LINES: '50000',
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/** Max output chunk files `split` may create (override with BARE_OS_SPLIT_MAX_FILES). */
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BARE_OS_SPLIT_MAX_FILES: '10000',
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_POSIX_THREAD_ATTR_STACKSIZE: '65536',
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_SC_PAGESIZE: '4096',
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_SC_PAGE_SIZE: '4096',
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_SC_OPEN_MAX: '256',
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_SC_STREAM_MAX: '256',
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_SC_CHILD_MAX: '0',
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_SC_CLK_TCK: '100',
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_SC_PHYS_PAGES: '524288',
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_SC_AVPHYS_PAGES: '262144',
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_SC_ARG_MAX: '262144',
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_SC_NPROCESSORS_CONF: '4',
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/** Online processors (static default; live override via `ctx.bareOsGetconfSysconf` + `BARE_OS_NPROC`). */
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_SC_NPROCESSORS_ONLN: '4',
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_SC_HOST_NAME_MAX: '255',
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_POSIX_HOST_NAME_MAX: '255',
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_SC_MONOTONIC_CLOCK: '1',
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/** Dynamic when `ctx.bareOsGetconfSysconf` + native bare-hrtime; static default 0. */
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_SC_MONOTONIC_CLOCK_RES: '0',
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_SC_TRACE: '-1',
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_SC_TRACE_VERSION: '-1',
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_SC_RAW_SOCKETS: '-1',
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_SC_ADVISORY_INFO: '0',
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_SC_BARRIERS: '-1',
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_SC_SPIN_LOCKS: '1',
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_SC_TIMER_MAX: '32',
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_SC_DELAYTIMER_MAX: '0',
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_SC_ATEXIT_MAX: '32',
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_SC_LINE_MAX: '2048',
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_SC_BC_BASE_MAX: '99',
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_SC_BC_DIM_MAX: '2048',
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_SC_BC_SCALE_MAX: '99',
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_SC_SYMLOOP_MAX: '32',
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_SC_IOV_MAX: '1024',
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_SC_UIO_MAXIOV: '1024',
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_SC_THREAD_DESTRUCTOR_ITERATIONS: '4',
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_SC_TTY_NAME_MAX: '32',
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_SC_LOGIN_NAME_MAX: '256',
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/** Defaults; live session: **`ctx.bareOsGetconfSysconf`** (pipeline limits, swarm caps, …). */
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_SC_BARE_OS_PIPELINE_MAX_BYTES: '536870912',
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_SC_BARE_OS_PIPELINE_MAX_LINES: '2000000',
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_SC_BARE_OS_PIPELINE_MAX_STAGES: '32',
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_SC_BARE_OS_GLOB_MAX_MATCHES: '4096',
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_SC_BARE_OS_SHELL_LOOP_MAX: '10000',
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_SC_BARE_OS_EXEC_MAX_DEPTH: '64',
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_SC_BARE_OS_XARGS_MAX_PROCS: '8',
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_SC_BARE_OS_SWARM_MAX_PEERS: '512',
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_SC_BARE_OS_SWARM_MAX_CLIENT_CONNECTIONS: '256',
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_SC_BARE_OS_SWARM_MAX_SERVER_CONNECTIONS: '256',
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_SC_BARE_OS_SWARM_MAX_PARALLEL: '64',
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_SC_BARE_OS_DGRAM_RECVQ_MAX: '256',
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_SC_BARE_OS_ACCEPT_QUEUE_MAX: '64',
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_PC_PATH_MAX: '4096',
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_PC_NAME_MAX: '255',
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_PC_CHOWN_RESTRICTED: '1',
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_PC_NO_TRUNC: '1',
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_PC_FILESIZEBITS: '64',
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_PC_LINK_MAX: '1',
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_PC_MAX_CANON: '255',
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_PC_MAX_INPUT: '512',
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_PC_PIPE_BUF: '4096',
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_PC_2_SYMLINKS: '1',
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/** Comma-separated `ctx.bareOsSyscall` op names implemented in stock booter. */
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BARE_OS_SYSCALL_OPS:
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'accept,access,bind,chdir,chmod,clock_gettime,connect,exists,fcntl,fdatasync,fsync,ftruncate,getcwd,getsockopt,kill,link,listen,lstat,mkdir,mount,mq_open,mq_receive,mq_send,nanosleep,pathconf,posix_fadvise,posixPoll,readFile,readdir,readlink,readv,recv,recvfrom,recvmsg,rename,rmdir,select,send,sendmsg,setsockopt,shutdown,socket,stat,symlink,truncate,umask,umount,unlink,utimes,writeFile,writev',
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/** POSIX.1 XSH-style names documented in `/proc/bare_os/syscalls.json` opsDetail (socket family are syscall probes returning ENOSYS-shaped results). */
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BARE_OS_POSIX_XSH_OPS:
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'open,close,read,write,readv,writev,getsockopt,setsockopt,lseek,nanosleep,clock_gettime,posix_fadvise,pipe,dup,dup2,fcntl,poll,select,umask,fsync,fdatasync,socket,bind,listen,accept,connect,send,recv,recvfrom,sendmsg,recvmsg,shutdown',
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/** Encodings accepted by `/bin/iconv` (subset; case-insensitive names). */
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BARE_OS_ICONV_ENCODINGS: 'UTF-8,ISO-8859-1,UTF-16LE,UTF-16BE',
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/** Synthetic process table JSON path (logical VFS). */
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BARE_OS_PROC_PROCESS_TABLE: '/proc/bare_os/process_table.json',
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/** Sidecar suffix for synthetic POSIX ACL text (`getfacl` / `setfacl`). */
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BARE_OS_ACL_SIDECAR_SUFFIX: '.bare_acl',
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/** Sidecar suffix for extended-attribute JSON (`xattr`). */
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BARE_OS_XATTR_SIDECAR_SUFFIX: '.bare_xattr.json',
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/** Incremental kernel.ext.d reload after boot (`ctx.bareOsReloadKernelExtDropinsSafe`); 0/1 hint only. */
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BARE_OS_KERNEL_EXT_D_HOT_RELOAD: '0',
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/** Operator hint for hyperblob-style dedup in host pipelines; guest VFS does not enable automatically. */
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BARE_OS_VFS_HYPERBLOBS_DEDUP: '0',
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/** This binary: fixed catalog. Use `getconf NAME /path` + `ctx.bareOsPathconf` for live pathconf. */
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BARE_OS_GETCONF_SOURCE: 'static_catalog',
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/** Guest session denies read/write/unlink/chmod on sealed `/.bare/account` and `/.bare/vault/**` unless BARE_OS_GUEST_BARE_READ_ALL=1. */
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BARE_OS_GUEST_SENSITIVE_BARE_DENY: '1',
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/** Optional `/.bare-os/acct/…` segment before `home/` and `tmp/` (BARE_OS_PERSONAL_ACCT_PREFIX). */
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BARE_OS_PERSONAL_ACCT_PREFIX_FEATURE: '1',
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/** Legacy flat-root → `/.bare-os/home/<seg>/` migration state file on the personal drive. */
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BARE_OS_PERSONAL_ROOT_MIGRATION_STATE: '/.bare-os/migration/legacy-root-v1.json',
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/** Replication hook counter: vfs.replication_warm_full_invalidate (metrics / kernelCounters). */
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BARE_OS_REPLICATION_WARM_FULL_INVALIDATE_METRIC: 'vfs.replication_warm_full_invalidate'
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}
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async function run(ctx, argv) {
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const args = argv.slice(1).filter((a) => a !== '--')
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let dumpAll = false
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/** @type {string[]} */
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const positional = []
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for (const a of args) {
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if (a === '-a') dumpAll = true
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else if (!a.startsWith('-')) positional.push(a)
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else {
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ctx.console.error('getconf: unknown option: ' + a)
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ctx.exitCode = 1
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return
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}
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}
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if (dumpAll) {
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for (const k of Object.keys(CONF).sort()) {
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ctx.console.log(k + '\n' + CONF[k])
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}
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ctx.exitCode = 0
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return
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}
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if (positional.length === 2) {
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const varName = positional[0]
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const pathSpec = positional[1]
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if (
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typeof ctx.bareOsPathconf === 'function' &&
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pathSpec.startsWith('/')
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) {
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try {
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const v = ctx.bareOsPathconf(pathSpec, varName)
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ctx.console.log(String(v))
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ctx.exitCode = 0
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return
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} catch (e) {
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ctx.console.error('getconf: ' + (e?.message || String(e)))
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ctx.exitCode = 1
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return
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}
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}
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}
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if (positional.length !== 1) {
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ctx.console.error('usage: getconf [-a] system_var [path_for_pathconf]')
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ctx.exitCode = 1
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return
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}
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const name = positional[0]
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if (typeof ctx.bareOsGetconfSysconf === 'function') {
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try {
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const dyn = ctx.bareOsGetconfSysconf(name)
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if (dyn != null && dyn !== '') {
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ctx.console.log(String(dyn))
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ctx.exitCode = 0
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return
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}
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} catch (e) {
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ctx.console.error('getconf: ' + (e?.message || String(e)))
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ctx.exitCode = 1
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return
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}
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}
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if (Object.prototype.hasOwnProperty.call(CONF, name)) {
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ctx.console.log(CONF[name])
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ctx.exitCode = 0
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return
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}
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ctx.console.error('getconf: ' + name + ': unknown variable')
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ctx.exitCode = 1
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}
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