@struktoai/mirage-core/dist/core/databricks_volume/stream.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 { rechunk } from "../../io/stream.js";
import { recordStream } from "../../observe/context.js";
import { VFSName } from "../../types.js";
import { downloadStream } from "./client.js";
import { isNotFound } from "./errors.js";
import { backendPath } from "./path.js";
import { enoent } from "../../errors/fs.js";
const DEFAULT_CHUNK_SIZE = 8192;
export async function* readStream(accessor, path) {
    const virtual = path.virtual;
    const remotePath = backendPath(accessor.config, path);
    const rec = recordStream('read', virtual, VFSName.DATABRICKS_VOLUME);
    try {
        for await (const piece of rechunk(downloadStream(accessor, remotePath), DEFAULT_CHUNK_SIZE)) {
            if (rec !== null)
                rec.bytes += piece.byteLength;
            yield piece;
        }
    }
    catch (exc) {
        if (isNotFound(exc))
            throw enoent(path.virtual);
        throw exc;
    }
    if (rec !== null)
        rec.complete = true;
}
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