@struktoai/mirage-core/dist/core/langfuse/stat.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 { ContentType, FileStat, FileType } from "../../types.js";
import { stripSlash } from "../../utils/slash.js";
import { makeStat } from "../hierarchy/stat.js";
import { jsonBytes } from "../render/json.js";
import { fetchTraceFile } from "./read.js";
import { EXTRAS } from "./readdir.js";
import { detectScope } from "./scope.js";
// A trace listing stops at defaultTraceLimit and defaultFromTimestamp while
// read fetches any trace by id, so a trace the listing left out is probed
// the way read reaches it; the probe fetched the whole trace, so its
// rendered size is exact. Mirrors python's `_stat_trace`.
async function statTrace(accessor, match, path, entry) {
    if (entry !== null)
        return entry;
    const data = await fetchTraceFile(accessor, match, path);
    return new FileStat({
        name: stripSlash(path.vfsPath).split('/').pop() ?? '',
        type: FileType.FILE,
        content: ContentType.JSON,
        size: jsonBytes(data).byteLength,
    });
}
export const stat = makeStat(detectScope, {
    overrides: {
        trace: statTrace,
        session_trace: statTrace,
    },
    extras: EXTRAS,
});
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