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d9d1a10e78
@ -1,12 +1,3 @@
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# OpenModLauncher-Base
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# OpenModLauncher-Base
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A small Minecraft launcher codebase
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A small Minecraft launcher codebase
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This is currently a work in progress for another project of mine but it can be used in other projects too as I try to be the least project-specific as I can be.
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Please note I reused and rearranged a lot of code from a launcher I've programmed earlier this year.
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## Features
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At the time of writing this README, this launcher can only download a Minecraft version specified in meta.json into a given directory.
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Launching Minecraft, installing a mod loader on top of many versions and downloading custom files are the main planned features.
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@ -1,10 +0,0 @@
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const path = require("node:path");
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const fs = require("node:fs");
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module.exports = {
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"check_install": function (directory) {
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return new Promise(function (resolve, reject) {
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resolve(fs.existsSync(path.join(directory, "versions")));
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});
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}
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};
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@ -1,146 +0,0 @@
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const path = require("node:path");
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const fs = require("node:fs");
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const fsPromises = require("node:fs/promises");
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const httpsWrapper = require("./util/https.js");
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const utilities = require("./util/functions.js");
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let maxConcurrentDownloads = 16;
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let downloadQueue = [];
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let totalDownloads = 0;
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let isDownloading = false;
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let ongoingDownloads = 0;
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function waitUntilDownloadsFinish() {
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return new Promise(async function (resolve, reject) {
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var downloadCountChecker = setInterval(function () {
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if (ongoingDownloads < 1 && downloadQueue.length < 1 && !isDownloading) {
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resolve(clearInterval(downloadCountChecker));
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}
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}, 256);
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});
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}
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module.exports = {
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"download_file": function (url, filePath) {
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return new Promise(async function (resolve, reject) {
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var directory = path.dirname(filePath);
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if (!(await fs.existsSync(directory))) await fsPromises.mkdir(directory, {"recursive": true});
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var writeStream = fs.createWriteStream(filePath);
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writeStream.on("finish", resolve);
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httpsWrapper.getStream(url).then(function (response) {
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response.pipe(writeStream);
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}).catch(reject);
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});
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},
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"process_queue": function (progressCB) {
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return new Promise(async function (resolve, reject) {
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totalDownloads = downloadQueue.length;
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if (downloadQueue.length > 0) isDownloading = true;
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if (progressCB) {
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progressCB(0.0, 0, downloadQueue.length, totalDownloads);
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}
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while (downloadQueue.length > 0) {
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if (ongoingDownloads < maxConcurrentDownloads) {
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setImmediate(function (downloadData) {
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module.exports.download_file(downloadData.url, downloadData.path).then(function () {
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ongoingDownloads--;
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if (downloadQueue.length < 1) {
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isDownloading = false;
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}
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}).catch(function (error) {
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ongoingDownloads--;
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downloadQueue.push(downloadData);
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});
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}, downloadQueue.shift());
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ongoingDownloads++;
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let progress = (totalDownloads - (downloadQueue.length + ongoingDownloads)) / totalDownloads;
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if (progressCB) {
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progressCB(progress, ongoingDownloads, downloadQueue.length, totalDownloads);
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}
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} else {
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await utilities.sleep(256);
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}
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}
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waitUntilDownloadsFinish().then(function () {
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if (progressCB) {
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progressCB(1.0, 0, 0, totalDownloads);
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}
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resolve();
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}).catch(reject);
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});
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},
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"download_minecraft": function (directory, meta, manifestSource, progressCB) {
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return new Promise(async function (resolve, reject) {
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let gameManifest = JSON.parse(await httpsWrapper.get(manifestSource["versions_manifest"]));
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let versionInManifest = gameManifest.versions.find(ver => ver.id == meta["version"]);
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if (!versionInManifest) {
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return reject(new Error("Minecraft version \"" + meta["version"] + "\" could not be found in given source. "));
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}
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if (!fs.existsSync(directory)) await fsPromises.mkdir(directory, {"recursive": true});
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let versionDirectory = path.join(directory, "versions", meta["version"]);
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if (!fs.existsSync(versionDirectory)) await fsPromises.mkdir(versionDirectory, {"recursive": true});
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let versionManifest = JSON.parse(await httpsWrapper.get(versionInManifest.url));
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fs.writeFileSync(path.join(versionDirectory, meta["version"] + ".json"), JSON.stringify(versionManifest, null, "\t"));
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let librariesDirectory = path.join(directory, "libraries");
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for (let l = 0; l < versionManifest.libraries.length; l++) {
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let library = versionManifest.libraries[l];
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if ("classifiers" in library.downloads) continue; // Attempt at skipping platform-specific code, hoping the game still starts.
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let libraryFilePath = path.join(librariesDirectory, ...(library.downloads.artifact.path.split("/")));
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downloadQueue.push({
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"url": library.downloads.artifact.url,
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"path": libraryFilePath
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});
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}
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let assetsDirectory = path.join(directory, "assets");
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let assetIndexesDirectory = path.join(assetsDirectory, "indexes");
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if (!fs.existsSync(assetIndexesDirectory)) await fsPromises.mkdir(assetIndexesDirectory, {"recursive": true});
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let assetIndexPath = path.join(assetIndexesDirectory, versionManifest.assetIndex.id + ".json");
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let assetIndex = JSON.parse(await httpsWrapper.get(versionManifest.assetIndex.url));
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fs.writeFileSync(assetIndexPath, JSON.stringify(assetIndex, null, "\t"));
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let assetObjectsDirectory = path.join(assetsDirectory, "objects");
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for (const assetLocation in assetIndex.objects) {
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if (assetIndex.objects.hasOwnProperty(assetLocation)) {
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let asset = assetIndex.objects[assetLocation];
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let assetPath = [
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asset.hash.substring(0, 2), asset.hash
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];
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downloadQueue.push({
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"url": manifestSource["asset_base"] + assetPath.join("/"),
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"path": path.join(assetObjectsDirectory, ...assetPath)
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});
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}
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}
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downloadQueue.push({
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"url": versionManifest.downloads.client.url,
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"path": path.join(versionDirectory, meta["version"] + ".jar")
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});
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if (!isDownloading) await module.exports.process_queue(progressCB);
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resolve(true);
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});
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}
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};
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@ -1,7 +0,0 @@
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module.exports = {
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"sleep": function (delay) {
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return new Promise(function (resolve, reject) {
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setTimeout(resolve, delay);
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});
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}
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};
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@ -1,35 +0,0 @@
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const https = require("https");
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module.exports = {
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"get": function (url) {
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return new Promise(function (resolve, reject) {
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var request = https.get(url, function (response) {
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if (response.statusCode != 200) return reject(new Error("Response status code wasn't 200. "));
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response.setEncoding("utf-8");
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let body = "";
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response.on("data", function (chunk) {
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body += chunk;
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});
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response.on("end", function () {
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resolve(body);
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});
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});
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request.on("error", reject);
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});
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},
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"getStream": function (url) {
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return new Promise(function (resolve, reject) {
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var request = https.get(url, function (response) {
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if (response.statusCode != 200) return reject(new Error("Response status code wasn't 200"));
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resolve(response);
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});
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request.on("error", reject);
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});
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}
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};
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86
main.js
86
main.js
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const path = require("node:path");
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const fs = require("node:fs");
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const os = require("node:os");
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const electron = require("electron");
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const downloader = require("./lib/downloader.js");
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const checker = require("./lib/checker.js");
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let meta = JSON.parse(fs.readFileSync(path.join(__dirname, "meta.json"), "utf-8"));
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let sources = JSON.parse(fs.readFileSync(path.join(__dirname, "sources.json"), "utf-8"));
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let osPlatform = os.platform();
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let userHome = os.homedir();
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let gameDirectory;
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switch (osPlatform) {
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case "win32":
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gameDirectory = path.join(userHome, "AppData", "Roaming", ...(meta["install_directory"]).split("/"));
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break;
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case "darwin":
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gameDirectory = path.join(userHome, "Library", "Application Support", ...(meta["install_directory"]).split("/"));
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break;
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case "linux":
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gameDirectory = path.join(userHome, ...(meta["install_directory"]).split("/"));
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break;
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default:
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gameDirectory = path.join(userHome, ...(meta["install_directory"]).split("/"));
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break;
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}
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let window;
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function showProgress(progress, ongoing, remaining, total) {
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window.setProgressBar(progress);
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window.webContents.send("event", {
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"type": "download-progress",
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"data": {
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"ongoing": ongoing,
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"remaining": remaining,
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"total": total
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}
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});
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}
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electron.app.on("ready", function () {
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window = new electron.BrowserWindow({
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"width": 960,
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"height": 560,
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"webPreferences": {
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"nodeIntegration": true,
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"contextIsolation": true,
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"preload": path.join(__dirname, "preload.js")
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},
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"title": "OpenModLauncher",
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"icon": path.join(__dirname, "res", "img", "logo.png"),
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"frame": false,
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"transparent": true,
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"resizable": false,
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"show": false
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});
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window.loadFile(path.join(__dirname, "views", "main.html"));
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window.on("ready-to-show", window.show);
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});
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electron.ipcMain.handle("minimize", function (event) {
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return window.minimize();
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});
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electron.ipcMain.handle("close", function (event) {
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return window.close();
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});
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electron.ipcMain.handle("is-installed", function (event) {
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return checker.check_install(gameDirectory);
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});
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electron.ipcMain.handle("install", function (event) {
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return downloader.download_minecraft(gameDirectory, meta["minecraft"], sources["minecraft"], showProgress);
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});
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electron.app.on("window-all-closed", function () {
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electron.app.quit();
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});
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@ -1,6 +0,0 @@
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{
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"install_directory": "games/.openmod",
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"minecraft": {
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"version": "1.7.10"
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}
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}
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13
package.json
13
package.json
@ -1,13 +0,0 @@
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{
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"name": "openmodlauncher",
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"version": "0.0.1",
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"description": "A small Minecraft launcher codebase",
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"main": "main.js",
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"repository": "https://gitea.x3f200c.net/X3F200C/OpenModLauncher-Base.git",
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"author": "X3F200C <x3f200c@x3f200c.net>",
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"license": "GNU-GPLv3",
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"private": false,
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"scripts": {
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"start": "electron ."
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}
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}
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18
preload.js
18
preload.js
@ -1,18 +0,0 @@
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const electron = require("electron");
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electron.contextBridge.exposeInMainWorld("minimizeWindow", function () {
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return electron.ipcRenderer.invoke("minimize");
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});
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electron.contextBridge.exposeInMainWorld("closeWindow", function () {
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return electron.ipcRenderer.invoke("close");
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});
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electron.contextBridge.exposeInMainWorld("game", {
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"isInstalled": function () {
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||||||
return electron.ipcRenderer.invoke("is-installed");
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||||||
},
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||||||
"install": function () {
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|
||||||
return electron.ipcRenderer.invoke("install");
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||||||
}
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||||||
});
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@ -1,47 +0,0 @@
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:root {
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|
||||||
color: rgba(248, 248, 248, 1.0);
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||||||
}
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||||||
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||||||
body {
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||||||
margin: 0px;
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||||||
}
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|
||||||
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||||||
#titlebar {
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|
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display: flex;
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||||||
flex-direction: row;
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|
||||||
justify-content: space-between;
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||||||
align-items: center;
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||||||
-webkit-app-region: drag;
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||||||
width: 100%;
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|
||||||
height: 24px;
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||||||
position: absolute;
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||||||
top: 0px;
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||||||
left: 0px;
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|
||||||
background-color: rgba(16, 16, 16, 1.0);
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||||||
}
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||||||
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||||||
#window-actions {
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||||||
display: flex;
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|
||||||
flex-direction: row;
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|
||||||
height: 100%;
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|
||||||
-webkit-app-region: no-drag;
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|
||||||
pointer-events: all;
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|
||||||
}
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|
||||||
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|
||||||
.window-action {
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|
||||||
background-color: rgba(24, 24, 32, 1.0);
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|
||||||
width: 32px;
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|
||||||
height: 100%;
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|
||||||
}
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|
||||||
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|
||||||
.window-action:hover {
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|
||||||
background-color: rgba(48, 48, 64, 1.0);
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|
||||||
}
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|
||||||
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|
||||||
#window-close {
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|
||||||
background-color: rgba(128, 0, 0, 1.0);
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|
||||||
}
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|
||||||
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|
||||||
#window-close:hover {
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|
||||||
background-color: rgba(248, 0, 0, 1.0);
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|
||||||
}
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|
||||||
@ -1,9 +0,0 @@
|
|||||||
{
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|
||||||
"minecraft": {
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|
||||||
"versions_manifest": "https://launchermeta.mojang.com/mc/game/version_manifest_v2.json",
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|
||||||
"asset_base": "https://resources.download.minecraft.net/"
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|
||||||
},
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|
||||||
"custom": {
|
|
||||||
"files_manifest": "${CUSTOM_MANIFEST_URL}"
|
|
||||||
}
|
|
||||||
}
|
|
||||||
@ -1,22 +0,0 @@
|
|||||||
<!DOCTYPE html>
|
|
||||||
<html lang="en" dir="ltr">
|
|
||||||
<head>
|
|
||||||
<meta charset="utf-8">
|
|
||||||
<title>OpenModLauncher</title>
|
|
||||||
|
|
||||||
<link rel="stylesheet" href="../res/css/main.css">
|
|
||||||
</head>
|
|
||||||
<body>
|
|
||||||
<div id="titlebar">
|
|
||||||
<span>OpenModLauncher</span>
|
|
||||||
<div id="window-actions">
|
|
||||||
<div class="window-action" id="window-minimize" onclick="minimizeWindow();">
|
|
||||||
|
|
||||||
</div>
|
|
||||||
<div class="window-action" id="window-close" onclick="closeWindow();">
|
|
||||||
|
|
||||||
</div>
|
|
||||||
</div>
|
|
||||||
</div>
|
|
||||||
</body>
|
|
||||||
</html>
|
|
||||||
Loading…
Reference in New Issue
Block a user