isaacscript/dist/commands/monitor/spawnModDirectorySyncer.js

A command line tool for managing Isaac mods written in TypeScript.

import { fatalError } from "complete-node";
import { fork } from "node:child_process";
import path from "node:path";
import { FILE_SYNCED_MESSAGE, MAIN_LUA, MOD_SOURCE_PATH, } from "../../constants.js";
import { getModTargetDirectoryName } from "../../utils.js";
import { notifyGameCommand, notifyGameMsg } from "./notifyGame.js";
const SUBPROCESS_NAME = "modDirectorySyncer";
const SUBPROCESS_DESCRIPTION = "Directory syncer";
export function spawnModDirectorySyncer(config) {
    const processPath = path.join(import.meta.dirname, SUBPROCESS_NAME, SUBPROCESS_NAME);
    const modTargetName = getModTargetDirectoryName(config);
    const modTargetPath = path.join(config.modsDirectory, modTargetName);
    const directorySyncer = fork(processPath, [MOD_SOURCE_PATH, modTargetPath]);
    directorySyncer.on("message", (msg) => {
        // It is possible for a sub-process to send a non-string message.
        if (typeof msg !== "string") {
            fatalError(`Received a non-string message from the "${SUBPROCESS_NAME}" subprocess:`, msg);
        }
        notifyGameMsg(msg);
        // If the "main.lua" file was successfully copied over, we also have to tell isaacscript-watcher
        // to reload the mod. Look for something like: "File synced: \main.lua"
        if (msg === `${FILE_SYNCED_MESSAGE} ${path.sep}${MAIN_LUA}`) {
            notifyGameCommand(`luamod ${modTargetName}`);
            notifyGameCommand("restart");
            notifyGameMsg("Reloaded the mod.");
        }
    });
    directorySyncer.on("close", (code) => {
        fatalError(`Error: ${SUBPROCESS_DESCRIPTION} subprocess closed with code: ${code}`);
    });
    directorySyncer.on("exit", (code) => {
        fatalError(`Error: ${SUBPROCESS_DESCRIPTION} subprocess exited with code: ${code}`);
    });
}
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