@struktoai/mirage-core/dist/core/tidb_filesystem/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 { backendPath } from "./path.js";
import { readError } from "./read.js";
export async function* readStream(accessor, path, chunkSize = 8192) {
    if (chunkSize <= 0)
        throw new RangeError('chunkSize must be positive');
    const rec = recordStream('read', path.virtual, VFSName.TIDB_FILESYSTEM);
    const remotePath = backendPath(accessor.config, path);
    try {
        for await (const piece of rechunk(downloadStream(accessor, remotePath), chunkSize)) {
            if (rec !== null)
                rec.bytes += piece.byteLength;
            yield piece;
        }
    }
    catch (exc) {
        throw (await readError(accessor, path, exc)) ?? exc;
    }
    if (rec !== null)
        rec.complete = true;
}
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