@struktoai/mirage-core
Version:
A Unified Virtual Filesystem For AI Agents
57 lines • 2.16 kB
JavaScript
// ========= 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 { FileStat, FileType } from "../../types.js";
import { contentTypeForPath } from "../../utils/filetype.js";
import { gnuBasename, norm } from "../../utils/path.js";
import { lookupError } from "./dest.js";
/**
* What `stat` answers for the normalized key `p`, null when nothing is there.
* Mirrors Python's `key_stat`.
*/
export function keyStat(store, p) {
const attrs = store.attrs.get(p) ?? {};
if (store.dirs.has(p)) {
return new FileStat({
name: gnuBasename(p),
modified: store.modified.get(p) ?? null,
type: FileType.DIRECTORY,
mode: attrs.mode ?? null,
uid: attrs.uid ?? null,
gid: attrs.gid ?? null,
atime: attrs.atime ?? null,
});
}
const data = store.files.get(p);
if (data === undefined)
return null;
return new FileStat({
name: gnuBasename(p),
size: data.byteLength,
modified: store.modified.get(p) ?? null,
type: FileType.FILE,
content: contentTypeForPath(p),
mode: attrs.mode ?? null,
uid: attrs.uid ?? null,
gid: attrs.gid ?? null,
atime: attrs.atime ?? null,
});
}
export function stat(accessor, path) {
const p = norm(path.mountPath);
const found = keyStat(accessor.store, p);
if (found === null)
throw lookupError(accessor, path, p);
return Promise.resolve(found);
}
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