@struktoai/mirage-core/dist/commands/builtin/generic/crossmount/relay/relay.js

A Unified Virtual Filesystem For AI Agents

import { runAwk } from "./awk.js";
import { runCp } from "./cp.js";
import { runLs } from "./ls.js";
import { runMv } from "./mv.js";
import { runSed } from "./sed.js";
import { runTar } from "./tar.js";
import { runTee } from "./tee.js";
import { runUnzip } from "./unzip.js";
import { runWc } from "./wc.js";
import { runZip } from "./zip_cmd.js";
import { DISPATCH_BUILDERS, RELAY_COMMANDS } from "../constants.js";
import { runDispatch } from "../../../generic_bind/dispatch.js";
// Run a command whose work must see every operand at once. Pure wiring:
// every operand is read or written through dispatch primitives on its owning
// mount, and the shared generic does the work in its primitive mode, so
// output matches the single-mount commands.
export async function runRelay(cmdName, scopes, textArgs, flagKwargs, dispatch, 
// Single-mount runner: wc counts each operand with its own mount's wc,
// since a mount can count without reading; only its layout spans the line.
// awk runs once on its first file's mount, reading the rest through the
// dispatcher, so every operand keeps its own name.
runSingle, 
// Maps an operand to its storage identity, for the transfer commands
// that must tell a real move from one whose two prefixes address a
// single store.
storageKey, 
// Name-plane facts for the generics that render them (ls: links, attr
// overlay, child mounts) and for the archivers' scan (tar, zip: links,
// mount boundaries).
vfs, 
// The session view, for the generic that renders the session's
// profile (ls -l).
sessionView, stdin = null, 
// The session's working directory, which cp resolves a typed link source
// against.
cwd = '/', argv = [], checkUnlink, diff, ids, signal) {
    if (!RELAY_COMMANDS.has(cmdName))
        throw new Error(`Unsupported cross-mount relay command: ${cmdName}`);
    if (cmdName === 'awk')
        return runAwk(scopes, textArgs, flagKwargs, runSingle, stdin);
    // bc runs its files, then standard input, as one program: once, on its
    // first file's mount, reading the rest through the dispatcher. Only that
    // file names the mount, so none of the others is checked against a backend
    // that does not hold it.
    if (cmdName === 'bc')
        return runSingle('bc', scopes, textArgs, flagKwargs, { stdin, resolveHint: scopes[0] ?? null });
    if (cmdName === 'sed')
        return runSed(scopes, textArgs, flagKwargs, dispatch, stdin, cwd, argv, sessionView?.snapshot());
    if (cmdName === 'wc')
        return runWc(scopes, flagKwargs, dispatch, runSingle, cwd, vfs, stdin);
    if (cmdName === 'ls')
        return runLs(scopes, flagKwargs, dispatch, vfs, sessionView);
    if (cmdName === 'cp')
        return runCp(scopes, flagKwargs, dispatch, storageKey, vfs, cwd, stdin);
    if (cmdName === 'mv') {
        return runMv(scopes, flagKwargs, dispatch, storageKey, vfs, stdin, checkUnlink);
    }
    if (cmdName === 'tar')
        return runTar(scopes, textArgs, flagKwargs, dispatch, cwd, vfs, stdin);
    if (cmdName === 'tee')
        return runTee(scopes, flagKwargs, dispatch, stdin, storageKey);
    if (cmdName === 'unzip')
        return runUnzip(scopes, textArgs, flagKwargs, dispatch, cwd);
    if (cmdName === 'zip')
        return runZip(scopes, flagKwargs, dispatch, vfs);
    const builder = DISPATCH_BUILDERS.get(cmdName);
    if (builder !== undefined) {
        return runDispatch(builder, scopes, textArgs, flagKwargs, dispatch, cwd, vfs, stdin, signal, argv, undefined, diff, ids);
    }
    throw new Error(`No cross-mount composition for ${cmdName}`);
}
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