@struktoai/mirage-core/dist/process/stdio.js

A Unified Virtual Filesystem For AI Agents

import { Channel, JobConsole } from "../shell/console/index.js";
import { BytePipe, CAPACITY } from "../io/pipe.js";
import { PipeClosed } from "../io/errors.js";
import { OutputStream } from "../io/stream.js";
export class ProcessInput {
    pipe;
    closed = false;
    bytesRead = 0;
    constructor(capacity = CAPACITY) {
        this.pipe = new BytePipe(capacity);
    }
    async write(data) {
        if (data.byteLength === 0)
            return;
        if (this.closed)
            throw new PipeClosed();
        await this.pipe.write(data);
    }
    close() {
        this.closed = true;
        this.pipe.end();
    }
    stop() {
        this.close();
        this.pipe.closeReader();
    }
    async *read() {
        for await (const chunk of this.pipe.stream()) {
            this.bytesRead += chunk.byteLength;
            yield chunk;
        }
    }
    stream() {
        return new OutputStream(this.read(), () => {
            this.stop();
            return Promise.resolve();
        });
    }
}
export class ProcessOutput extends JobConsole {
    mergeStderr;
    stdout;
    stderr;
    constructor(mergeStderr = false, bufferBytes = CAPACITY) {
        super();
        this.mergeStderr = mergeStderr;
        this.stdout = new ProcessInput(bufferBytes);
        this.stderr = new ProcessInput(bufferBytes);
    }
    async emit(channel, data) {
        await (channel === Channel.STDERR && !this.mergeStderr ? this.stderr : this.stdout).write(data);
    }
    end() {
        this.stdout.close();
        this.stderr.close();
    }
    stop() {
        this.stdout.stop();
        this.stderr.stop();
    }
}
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