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94 lines
2.8 KiB
94 lines
2.8 KiB
"use strict";
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import * as _ from "underscore";
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import tasks from "./tasks";
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// TaskProcessor does not look like EventEmitter, so no need to extend EventEmitter and use `emit' here.
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const createTaskProcessor = (task, outerProcessor: TaskProcessor, callback) => {
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const result: TaskProcessor = {};
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const createTaskWorker = () => tasks[task.type](task.params || {}, result);
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const errors: string[] = [];
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const process = () => createTaskWorker().process();
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const getOuterPrefix = (prefix) => {
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if (task.name && prefix) {
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return `${task.name}/${prefix}`;
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}
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return String(task.name || "") + String(prefix || "");
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};
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const onError = (message, prefix) => {
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errors.push(message);
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outerProcessor.onError(message, getOuterPrefix(prefix));
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};
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const onWarn = (message, prefix) => outerProcessor.onWarn(message, getOuterPrefix(prefix));
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const onInfo = (message, prefix) => outerProcessor.onInfo(message, getOuterPrefix(prefix));
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const processTask = (innerTask, innerCallback) => {
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const innerProcessor = createTaskProcessor(innerTask, result, innerCallback);
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innerProcessor.process();
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};
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const done = () => callback(errors.join("\r\n"));
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result.process = process;
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result.onError = onError;
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result.onWarn = onWarn;
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result.onInfo = onInfo;
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result.processTask = processTask;
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result.done = done;
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result.context = outerProcessor.context;
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return result;
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};
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const pushMessage = (list, message, parts, index) => {
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if (!index) {
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list.$allMessages = list.$allMessages || [];
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list.$allMessages.push({
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message,
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prefix: parts.join("/"),
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});
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}
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list.$messages = list.$messages || [];
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if (index === parts.length) {
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return list.$messages.push(message);
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}
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return pushMessage(list, message, parts, index + 1);
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};
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const addFlag = (flags) => (flagName) => {
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flags[flagName] = true;
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};
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const containsFlag = (flags) => (flagName) => flags[flagName];
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export const processTask = (task, context, callback) => {
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const errors = {};
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const warns = {};
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const infos = {};
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const messages = {};
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const messageProcessor = (list) => (message, prefix) => {
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const parts = prefix.split("/");
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pushMessage(list, message, parts, 0);
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pushMessage(messages, message, parts, 0);
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};
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const flags = {};
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const processor = createTaskProcessor(task, {
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context: _.extend(context, {
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addFlag: addFlag(flags),
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containsFlag: containsFlag(flags),
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}),
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onError: messageProcessor(errors),
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onInfo: messageProcessor(infos),
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onWarn: messageProcessor(warns),
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}, (err) => callback(err, {
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errors,
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infos,
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messages,
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warns,
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}));
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processor.process();
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};
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