@struktoai/mirage-core/dist/core/hierarchy/unlink.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 { eisdir, enoent } from "../../errors/fs.js";
import { INVALID } from "./scope.js";
/**
 * Build a hierarchy unlink: classify, refuse, delete.
 *
 * A deleter owns only the backend delete call, handed the row the parent's
 * listing names; classification and the directory refusal happen here,
 * identically for every backend. The match rides along because a delete
 * addressed inside a container needs the container's slots (gcal deletes an
 * event from a calendar), while a globally-id-addressed backend just ignores
 * it. Mirrors `make_unlink` in `mirage/core/hierarchy/unlink.py`.
 */
export function makeUnlink(detect, options) {
    const { deleters } = options;
    return async function unlink(accessor, path, entry = null) {
        const match = detect(path);
        const deleter = deleters[match.kind];
        if (deleter === undefined) {
            if (match.kind !== INVALID && !match.scope?.leaf)
                throw eisdir(path.virtual);
            throw enoent(path);
        }
        if (entry === null)
            throw enoent(path);
        await deleter(accessor, match, entry);
    };
}
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