@struktoai/mirage-core/dist/commands/builtin/general/uname.js

A Unified Virtual Filesystem For AI Agents

// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
import { IOResult } from "../../../io/types.js";
import { command } from "../../config.js";
import { specOf } from "../../spec/builtins.js";
import { extraOperandError } from "../../spec/usage.js";
import { CommandName } from "../../spec/types.js";
import { FlagView } from "../../spec/flag_view.js";
import { HOSTNAME } from "../constants.js";
import { VERSION } from "../../../version.js";
const ENC = new TextEncoder();
// What uname reports, in GNU's print order and keyed by each option's dest.
// Mirage is no kernel: it answers as the GNU/Linux userland its commands
// implement, the way gVisor and WSL1 answer `Linux` for the interface they
// emulate, and names itself in the node, release and version fields, the
// version field carrying its own version. Fixed, so every host (the browser
// included) prints the same line and no host detail leaks.
const UNAME_FIELDS = [
    ['kernel_name', 'Linux'],
    ['nodename', HOSTNAME],
    ['kernel_release', 'mirage'],
    ['kernel_version', `#1 Mirage ${VERSION}`],
    ['machine', 'x86_64'],
    ['processor', 'unknown'],
    ['hardware_platform', 'unknown'],
    ['operating_system', 'GNU/Linux'],
];
const UNKNOWN = 'unknown';
// GNU `uname`: one field per option, in GNU's order, never the order typed.
// No option is `-s`. `-a` prints every field except an `unknown` processor or
// hardware platform, which only `-p` and `-i` without `-a` print, as GNU
// does. Pinned against coreutils 9.7.
function uname(_accessor, paths, texts, ctx) {
    const fl = new FlagView(ctx.flags, specOf('uname'));
    const extra = texts[0];
    if (extra !== undefined)
        throw extraOperandError(CommandName.UNAME, extra);
    const chosen = fl.asBool('all')
        ? UNAME_FIELDS.filter(([, value]) => value !== UNKNOWN).map(([, value]) => value)
        : UNAME_FIELDS.filter(([dest]) => fl.asBool(dest)).map(([, value]) => value);
    if (chosen.length === 0)
        chosen.push(UNAME_FIELDS[0]?.[1] ?? '');
    return [ENC.encode(chosen.join(' ') + '\n'), new IOResult()];
}
export const GENERAL_UNAME = command({
    name: 'uname',
    vfs: null,
    spec: specOf('uname'),
    fn: uname,
});
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