@apidevtools/json-schema-ref-parser/dist/lib/resolvers/file.js

Parse, Resolve, and Dereference JSON Schema $ref pointers

import * as url from "../util/url.js";
import { ResolverError } from "../util/errors.js";
export default {
    /**
     * The order that this resolver will run, in relation to other resolvers.
     */
    order: 100,
    /**
     * Determines whether this resolver can read a given file reference.
     * Resolvers that return true will be tried, in order, until one successfully resolves the file.
     * Resolvers that return false will not be given a chance to resolve the file.
     */
    canRead(file) {
        return url.isFileSystemPath(file.url);
    },
    /**
     * Reads the given file and returns its raw contents as a Buffer.
     */
    async read(file) {
        let path;
        const fs = await import("fs");
        try {
            path = url.toFileSystemPath(file.url);
        }
        catch (err) {
            const e = err;
            e.message = `Malformed URI: ${file.url}: ${e.message}`;
            throw new ResolverError(e, file.url);
        }
        // strip trailing slashes
        if (path.endsWith("/") || path.endsWith("\\")) {
            path = path.slice(0, -1);
        }
        try {
            return await fs.promises.readFile(path);
        }
        catch (err) {
            const e = err;
            e.message = `Error opening file ${path}: ${e.message}`;
            throw new ResolverError(e, path);
        }
    },
};