@struktoai/mirage-core/dist/commands/builtin/generic/expand.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 { specOf } from "../../spec/builtins.js";
import { FlagView } from "../../spec/flag_view.js";
import { IOResult } from "../../../io/types.js";
import { stdinStream, streamOutput } from "../utils/stream.js";
import { reportedStream } from "../utils/operands.js";
import { asyncChain } from "../../../io/stream.js";
import { openStream } from "../../../rs/stream.js";
import { byteView } from "../../../shell/bytes.js";
import { StreamRefusal } from "../../../rs/errors.js";
export function parseFlags(bag) {
    const fl = new FlagView(bag, specOf('expand'));
    const tabs = fl.asList('tabs');
    return { tabs, initialOnly: fl.asBool('initial') };
}
export async function expandGeneric(paths, ctx, stream) {
    stream = stdinStream(stream, ctx.stdin);
    const parsed = parseFlags(ctx.flags);
    let engine;
    try {
        engine = await openStream('expand', {
            tabs: parsed.tabs.map((tab) => byteView(tab)),
            initial_only: parsed.initialOnly,
        });
    }
    catch (error) {
        if (!(error instanceof StreamRefusal))
            throw error;
        return [
            null,
            new IOResult({ exitCode: 1, stderr: new TextEncoder().encode(`${error.message}\n`) }),
        ];
    }
    const io = new IOResult();
    const sources = paths.map((p) => reportedStream(stream(p), io, p, 'expand'));
    const source = paths.length > 0 ? asyncChain(sources) : (ctx.stdin ?? new Uint8Array());
    return [streamOutput(engine, source, ctx.signal), io];
}
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