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const path = require('path');
const fs = require('fs');
const {promisify} = require('util');
const utils = require("../utils");
const updates = require('../data/updates');
const config = require('../config');
const access = promisify(fs.access);
const readFile = promisify(fs.readFile);
const GIT_DIR = path.join(__dirname, '..', '..', '.git');
module.exports = ({ bot, knex, config, commands }) => {
commands.addInboxServerCommand('version', [], async (msg, args, thread) => {
const packageJson = require('../../package.json');
const packageVersion = packageJson.version;
let response = `Modmail v${packageVersion}`;
let isGit;
try {
await access(GIT_DIR);
isGit = true;
} catch (e) {
isGit = false;
}
if (isGit) {
let commitHash;
const HEAD = await readFile(path.join(GIT_DIR, 'HEAD'), {encoding: 'utf8'});
if (HEAD.startsWith('ref:')) {
// Branch
const ref = HEAD.match(/^ref: (.*)$/m)[1];
commitHash = (await readFile(path.join(GIT_DIR, ref), {encoding: 'utf8'})).trim();
} else {
// Detached head
commitHash = HEAD.trim();
}
response += ` (${commitHash.slice(0, 7)})`;
}
if (config.updateNotifications) {
const availableUpdate = await updates.getAvailableUpdate();
if (availableUpdate) {
response += ` (version ${availableUpdate} available)`;
}
}
utils.postSystemMessageWithFallback(msg.channel, thread, response);
});
};
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