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89 lines
2.9 KiB
89 lines
2.9 KiB
"use strict";
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import { ChildProcess, spawn } from "child_process";
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import * as JSONParse from "json-parse-safe";
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import { WritableStreamBuffer } from "stream-buffers";
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import { Task } from "../types";
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const wrapBuilder = (builder: ChildProcess, input: string, onExit: (code: number, result: string, builderError: string) => void) => {
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const stdoutPromise = new Promise((resolve, reject) => {
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const streamBuffer = new WritableStreamBuffer();
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builder.stdout
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.on("error", reject)
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.pipe(streamBuffer)
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.on("error", reject)
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.on("finish", () => {
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streamBuffer.end();
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resolve(streamBuffer.getContentsAsString());
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});
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});
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const stderrPromise = new Promise((resolve, reject) => {
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const streamBuffer = new WritableStreamBuffer();
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builder.stderr
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.on("error", reject)
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.pipe(streamBuffer)
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.on("error", reject)
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.on("finish", () => {
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streamBuffer.end();
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resolve(streamBuffer.getContentsAsString());
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});
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});
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const builderPromise = new Promise((resolve) => {
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builder.stdin.write(input);
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builder.stdin.end();
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builder.on("exit", resolve);
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});
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Promise.all([stdoutPromise, stderrPromise, builderPromise]).then((values) => {
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const [result, builderError, code] = values;
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onExit(code as number, result as string, builderError as string);
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}).catch((err) => onExit(0, "", err));
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};
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export default ((params, processor) => () => {
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const input = JSON.stringify(params);
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const builder = spawn(processor.settings.builderExecutable, [params.command]);
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processor.onInfo(`DotNetBuilderWrapper processing (at ${new Date().toISOString()}): ${input}`);
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wrapBuilder(builder, input, (code, result, builderError) => {
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if (code || builderError) {
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processor.onError(`Return code is ${code}\r\n${builderError}`);
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return processor.done();
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}
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const { value, error } = JSONParse(result);
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if (error || !value || !value.Messages) {
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processor.onError(`Malformed JSON: ${error}`);
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processor.onInfo(result);
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return processor.done();
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}
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const messages = value.Messages;
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messages.forEach((message) => {
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if (!message) {
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return processor.onError("Message is null");
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}
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switch (message.Type) {
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case "info":
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return processor.onInfo(message.Body);
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case "warn":
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return processor.onWarn(message.Body);
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default:
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return processor.onError(message.Body);
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}
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});
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processor.onInfo(`Done DotNetBuilderWrapper processing (at ${new Date().toISOString()})`);
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return processor.done();
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});
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}) as Task;
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