@teambit/harmony
Version:
abstract extension system
151 lines • 6.02 kB
JavaScript
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Harmony = void 0;
require("reflect-metadata");
const extension_graph_1 = __importDefault(require("./extension-graph/extension-graph"));
const exceptions_1 = require("./exceptions");
const utils_1 = require("./utils");
const config_1 = require("./config");
const runtimes_1 = require("./runtimes/runtimes");
const exceptions_2 = require("./runtimes/exceptions");
class Harmony {
constructor(
/**
* extension graph
*/
graph,
/**
* harmony top level config
*/
config, runtimes, activeRuntime, depOptions) {
this.graph = graph;
this.config = config;
this.runtimes = runtimes;
this.activeRuntime = activeRuntime;
this.depOptions = depOptions;
this.current = null;
}
/**
* list all registered extensions
*/
get extensions() {
return this.graph.nodes;
}
/**
* list all registered extensions ids
*/
get extensionsIds() {
return [...this.graph.nodes.keys()];
}
/**
* load an Aspect into the dependency graph.
*/
load(extensions) {
return __awaiter(this, void 0, void 0, function* () {
return this.set(extensions);
});
}
/**
* set extensions during Harmony runtime.
* hack!
*/
set(extensions) {
return __awaiter(this, void 0, void 0, function* () {
this.graph.load(extensions);
// Only load new extensions and their dependencies
const extensionsToLoad = extensions.map((ext) => {
// @ts-ignore
return Reflect.getMetadata('harmony:name', ext) || ext.id || ext.name;
});
// @ts-ignore
yield this.graph.enrichRuntime(this.runtime, this.runtimes, () => { });
// @ts-ignore
const subgraphs = this.graph.successorsSubgraph(extensionsToLoad);
if (subgraphs) {
const executionOrder = subgraphs.toposort(true);
yield (0, utils_1.asyncForEach)(executionOrder, (ext) => __awaiter(this, void 0, void 0, function* () {
if (!this.runtime)
throw new exceptions_2.RuntimeNotDefined(this.activeRuntime);
yield this.runOne(ext, this.runtime);
}));
}
});
}
runOne(extension, runtime) {
return __awaiter(this, void 0, void 0, function* () {
if (extension.loaded)
return;
// create an index of all vertices in dependency graph
const deps = this.graph.getRuntimeDependencies(extension, runtime, this.depOptions);
const instances = deps.map(extension => extension.instance);
try {
return extension.__run(instances, this, runtime);
}
catch (err) {
throw new exceptions_1.ExtensionLoadError(extension, err);
}
});
}
getDependencies(aspect) {
if (!this.runtime)
throw new exceptions_2.RuntimeNotDefined(this.activeRuntime);
return this.graph.getRuntimeDependencies(aspect, this.runtime, this.depOptions);
}
initExtension(id) {
this.current = id;
}
endExtension() {
this.current = null;
}
/**
* get an extension from harmony.
*/
get(id) {
const extension = this.graph.get(id);
if (!extension || !extension.instance)
throw new Error(`failed loading extension ${id}`);
return extension.instance;
}
resolveRuntime(name) {
return this.runtimes.get(name);
}
run(requireFn) {
return __awaiter(this, void 0, void 0, function* () {
const runtime = this.resolveRuntime(this.activeRuntime);
this.runtime = runtime;
const defaultRequireFn = (aspect, runtime) => __awaiter(this, void 0, void 0, function* () {
const runtimeFile = runtime.getRuntimeFile(aspect.files);
if (!runtimeFile)
return;
// runtime.require(runtimeFile);
});
// requireFn ? await requireFn(aspect, runtime) : defaultRequireFn(this.graph);
yield this.graph.enrichRuntime(runtime, this.runtimes, requireFn || defaultRequireFn, this.depOptions);
const executionOrder = this.graph.byExecutionOrder();
yield (0, utils_1.asyncForEach)(executionOrder, (ext) => __awaiter(this, void 0, void 0, function* () {
yield this.runOne(ext, runtime);
}));
});
}
static load(aspects_1, runtime_1, globalConfig_1) {
return __awaiter(this, arguments, void 0, function* (aspects, runtime, globalConfig, options = {}) {
const aspectGraph = extension_graph_1.default.from(aspects, options);
const runtimes = yield runtimes_1.Runtimes.load(aspectGraph);
return new Harmony(aspectGraph, config_1.Config.from(globalConfig), runtimes, runtime, options);
});
}
}
exports.Harmony = Harmony;
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