Add reposervers.js
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rubenwardy
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877287574b
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a424861839
293
service/reposervers.js
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293
service/reposervers.js
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"esversion: 6";
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"use strict"
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class RepoServer {
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constructor(cachepath) {}
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saveCache() {}
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getServerName() {}
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// Returns tupple: user, repo. Returns immediately
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getRepoFromURL(url) {}
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connect() {}
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getRepoURL(repo) {}
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// Returns a promise which will give you a description on completion
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getDescriptionFromRepo(repo) {}
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// Returns a promise which will give you depends.txt on completion
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getDependsFromRepo(repo) {}
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// Returns a promise which will give you a tuple: download link and hash
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getDownloadAndHash(repo, branch) {}
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// Registers a on change listener
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registerListener(repo) {}
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}
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var fs = require('fs');
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var Promise = require('bluebird');
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class GithubRepoServer extends RepoServer {
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getServerName() {
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return "github.com"
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}
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constructor(github_auth, cachepath) {
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super();
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this.github = null;
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this.github_auth = github_auth;
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this.cachepath = cachepath
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this.cache = {};
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this.hits = 0;
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this.misses = 0;
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try {
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this.cache = JSON.parse(fs.readFileSync(this.cachepath, 'utf8'));
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} catch(e) {
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this.cache = {};
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}
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}
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saveCache() {
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console.log("Saving cache...");
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fs.writeFile(this.cachepath, JSON.stringify(this.cache));
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}
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connect() {
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var GitHubApi = require("github");
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this.github = new GitHubApi({
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// optional
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// debug: true,
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protocol: "https",
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host: "api.github.com", // should be api.github.com for GitHub
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pathPrefix: "", // for some GHEs; none for GitHub
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headers: {
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"user-agent": "MtMods4Android Server" // GitHub is happy with a unique user agent
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},
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Promise: Promise,
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followRedirects: true, // default: true; there's currently an issue with non-get redirects, so allow ability to disable follow-redirects
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timeout: 5000
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});
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this.github.authenticate({
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type: "oauth",
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token: this.github_auth
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});
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return true;
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}
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getRepoFromURL(link) {
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var re = /github.com\/([\w-]+)\/([\w-]+)/g;
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if (re) {
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var m = re.exec(link);
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if (m) {
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return {
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user: m[1],
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repo: m[2]
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};
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}
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} else {
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console.log("failed to compile");
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}
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return null;
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}
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getRepoURL(repo) {
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return "https://github.com/" + repo.user + "/" + repo.repo + ".git";
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}
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getDescriptionFromRepo(repo) {
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if (!this.github) {
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this.connect();
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}
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var me = this;
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return new Promise(function(resolve, reject) {
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var idx = repo.user + "/" + repo.repo;
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var cached = me.cache[idx];
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if (cached && cached.desc) {
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me.hits++;
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resolve(cached.desc.text);
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} else {
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me.misses++;
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me.github.repos.getContent({
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user: repo.user,
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repo: repo.repo,
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path: "description.txt"
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}).then(function(data) {
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if (data && data.content) {
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if (!cached) {
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cached = {}
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me.cache[idx] = cached;
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}
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var desc = new Buffer(data.content, 'base64').toString();
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cached.desc = {
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text: desc,
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timestamp: new Date().getTime()
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}
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resolve(desc);
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} else {
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if (!cached) {
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me.cache[idx] = {};
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}
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cached.desc = {
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text: "",
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timestamp: new Date().getTime()
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}
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reject();
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}
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}).catch(function(e) {
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if (!cached) {
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me.cache[idx] = {};
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}
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cached.desc = {
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text: "",
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timestamp: new Date().getTime()
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}
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reject();
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})
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}
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});
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}
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getDependsFromRepo(repo) {
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if (!this.github) {
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this.connect();
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}
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var me = this;
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return new Promise(function(resolve, reject) {
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me.github.repos.getContent({
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user: repo.user,
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repo: repo.repo,
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path: "depends.txt"
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}).then(function(data) {
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if (data && data.content) {
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resolve(new Buffer(data.content, 'base64'));
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} else {
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reject();
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}
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}).catch(function(e) {
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reject(e);
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});
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});
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}
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getDownloadAndHash(repo, branch) {
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if (!this.github) {
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this.connect();
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}
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var me = this;
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return new Promise(function (resolve, reject) {
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var idx = repo.user + "/" + repo.repo;
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var cached = me.cache[idx];
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if (cached && cached.download) {
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me.hits++;
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resolve({
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link: cached.download.link,
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commit: cached.download.sha
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});
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} else {
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me.misses++;
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var req = {
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user: repo.user,
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repo: repo.repo,
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per_page: 1
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};
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if (branch) {
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req.sha = branch;
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}
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me.github.repos.getCommits(req).then(function(res) {
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if (res && res.length == 1) {
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var sha = res[0].sha;
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if (!cached) {
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cached = {}
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me.cache[idx] = cached;
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}
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var link = "https://github.com/" + repo.user + "/" +
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repo.repo + "/archive/" + sha + ".zip"
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cached.download = {
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link: link,
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sha: sha,
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timestamp: new Date().getTime()
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}
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resolve({
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link: link,
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commit: sha
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});
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} else {
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reject();
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}
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}).catch(function(e) {
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reject(e);
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});
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}
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})
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}
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getAllInfo(repo, mod) {
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var me = this;
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return new Promise(function(resolve, reject) {
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me.getDownloadAndHash(repo, null).then(function(res) {
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var link = res.link;
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var commit = res.commit;
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mod.download_link = link;
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mod.commit_hash = commit;
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me.getDescriptionFromRepo(repo).then(function(desc) {
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mod.description = desc;
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resolve();
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}).catch(function(e) {
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resolve();
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});
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me.registerListener(repo).then(function(res) {
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console.log("Registered repo!");
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console.log(res);
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}).catch(function(e) {
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if (e) console.log(e);
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});
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}).catch(function(e) {
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reject("unable to get download: " + e);
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});
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// reject("504: Gateway Timeout");
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});
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}
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registerListener(repo) {
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var me = this;
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return new Promise(function(resolve, reject) {
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var idx = repo.user + "/" + repo.repo;
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var cached = me.cache[idx];
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if (!cached) {
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cached = {};
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me.cache[idx] = cached;
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} else if (cached.hook_registered) {
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resolve();
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return;
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} else if (repo.user != "minetest-mods") {
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reject();
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return;
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}
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cached.hook_registered = true;
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me.github.repos.createHook({
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user: repo.user,
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repo: repo.repo,
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name: "web",
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config: {
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url: "http://app-mtmm.rubenwardy.com/v2/notify-mod-update"
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}
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}).then(resolve).catch(reject);
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});
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}
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}
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module.exports = {
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RepoServer: RepoServer,
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GithubRepoServer: GithubRepoServer
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}
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