hardhat/dist/src/internal/core/plugins/resolve-plugin-list.js

Hardhat is an extensible developer tool that helps smart contract developers increase productivity by reliably bringing together the tools they want.

import { HardhatError } from "@nomicfoundation/hardhat-errors";
import { ensureError } from "@nomicfoundation/hardhat-utils/error";
import { detectPluginNpmDependencyProblems } from "./detect-plugin-npm-dependency-problems.js";
/**
 * Resolves the plugin list, returning them in the right order.
 */
export async function resolvePluginList(projectRoot, userConfigPluginList = []) {
    return reverseTopologicalSort(projectRoot, userConfigPluginList);
}
/**
 * Returns an array of reverse topological order of the plugins and their dependencies.
 *
 * If two plugins have no order between them, their relative order should be that of the input array.
 *
 * @param plugins The plugins.
 * @returns The ordered plugins.
 */
async function reverseTopologicalSort(projectRoot, plugins) {
    const visitedPlugins = new Map();
    const result = [];
    async function dfs(plugin) {
        const visited = visitedPlugins.get(plugin.id);
        if (visited !== undefined) {
            if (visited !== plugin) {
                throw new HardhatError(HardhatError.ERRORS.CORE.GENERAL.DUPLICATED_PLUGIN_ID, { id: plugin.id });
            }
            return;
        }
        visitedPlugins.set(plugin.id, plugin);
        if (plugin.dependencies !== undefined) {
            let dependencyModules;
            try {
                dependencyModules = await Promise.all(plugin.dependencies());
            }
            catch (error) {
                ensureError(error);
                await detectPluginNpmDependencyProblems(projectRoot, plugin);
                throw new HardhatError(HardhatError.ERRORS.CORE.PLUGINS.PLUGIN_DEPENDENCY_FAILED_LOAD, {
                    pluginId: plugin.id,
                }, error);
            }
            for (const dependencyModule of dependencyModules) {
                await dfs(dependencyModule.default);
            }
        }
        result.push(plugin);
    }
    for (const plugin of plugins) {
        await dfs(plugin);
    }
    return result;
}
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