@struktoai/mirage-core
Version:
A Unified Virtual Filesystem For AI Agents
60 lines • 2.5 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 { enotdir } from "../../errors/fs.js";
import { FileStat, FileType } from "../../types.js";
import { toIsoZ } from "../../utils/dates.js";
import { contentTypeForPath } from "../../utils/filetype.js";
import { rawPathOf } from "../../utils/key_prefix.js";
import { ancestors, norm } from "../../utils/path.js";
import { statEntry } from "./client.js";
import { kindsOf, lookupError } from "./dest.js";
import { hasStatus } from "./errors.js";
import { backendPath } from "./path.js";
export function fileStat(entry) {
const modified = entry.mtime !== null && entry.mtime !== 0 ? toIsoZ(new Date(entry.mtime * 1000)) : null;
if (entry.isDir)
return new FileStat({ name: entry.name, modified, type: FileType.DIRECTORY });
return new FileStat({
name: entry.name,
size: entry.size,
modified,
type: FileType.FILE,
content: contentTypeForPath(entry.name),
});
}
/**
* A path's metadata from one HEAD; a trailing slash asks for the directory
* of that name, as it does on an object store.
*/
export async function stat(accessor, path) {
const key = norm(path.mountPath);
if (key === '/')
return new FileStat({ name: '/', type: FileType.DIRECTORY });
const directory = rawPathOf(path).endsWith('/');
let entry;
try {
entry = await statEntry(accessor, backendPath(accessor.config, path), directory);
}
catch (exc) {
if (!hasStatus(exc, 404))
throw exc;
const kinds = await kindsOf(accessor, [...ancestors(key), key]);
const found = kinds.get(key) ?? null;
if (directory && found !== null && !found.isDir)
throw enotdir(path);
throw lookupError(kinds, path, key);
}
return fileStat(entry);
}
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