556 lines
17 KiB
JavaScript
556 lines
17 KiB
JavaScript
const Myt = require('./myt');
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const Command = require('./lib/command');
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const fs = require('fs-extra');
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const nodegit = require('nodegit');
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const ExporterEngine = require('./lib/exporter-engine');
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const connExt = require('./lib/conn');
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const repoExt = require('./lib/repo');
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const SqlString = require('sqlstring');
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/**
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* Pushes changes to remote.
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*/
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class Push extends Command {
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static usage = {
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description: 'Apply changes into database',
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params: {
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force: 'Answer yes to all questions',
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commit: 'Wether to save the commit SHA into database',
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sums: 'Save SHA sums of pushed objects',
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triggers: 'Wether to exclude triggers, used to generate local DB'
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},
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operand: 'remote'
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};
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static opts = {
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alias: {
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force: 'f',
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commit: 'c',
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sums: 's',
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triggers: 't'
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},
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boolean: [
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'force',
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'commit',
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'sums',
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'triggers'
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]
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};
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async run(myt, opts) {
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const conn = await myt.dbConnect();
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this.conn = conn;
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if (opts.remote == 'local')
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opts.commit = true;
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// Obtain exclusive lock
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const [[row]] = await conn.query(
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`SELECT GET_LOCK('myt_push', 30) getLock`);
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const pingTimeout = setInterval(async() => {
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try {
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await conn.ping()
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} catch (e) {}
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}, 60 * 1000);
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if (!row.getLock) {
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let isUsed = 0;
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if (row.getLock == 0) {
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const [[row]] = await conn.query(
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`SELECT IS_USED_LOCK('myt_push') isUsed`);
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isUsed = row.isUsed;
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}
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throw new Error(`Cannot obtain exclusive lock, used by connection ${isUsed}`);
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}
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async function releaseLock() {
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await conn.query(`DO RELEASE_LOCK('myt_push')`);
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}
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try {
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await this.push(myt, opts, conn);
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} catch(err) {
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try {
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await releaseLock();
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} catch (e) {}
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throw err;
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} finally {
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clearInterval(pingTimeout);
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}
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await releaseLock();
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}
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async push(myt, opts, conn) {
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const pushConn = await myt.createConnection();
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// Get database version
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const dbVersion = await myt.fetchDbVersion() || {};
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console.log(
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`Database information:`
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+ `\n -> Version: ${dbVersion.number}`
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+ `\n -> Commit: ${dbVersion.gitCommit}`
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);
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if (!dbVersion.number)
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dbVersion.number = String('0').padStart(opts.versionDigits, '0');
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if (!/^[0-9]*$/.test(dbVersion.number))
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throw new Error('Wrong database version');
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// Prevent push to production by mistake
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if (opts.remote == 'production') {
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console.log(
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'\n ( ( ) ( ( ) ) '
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+ '\n )\\ ))\\ ) ( /( )\\ ) ( ))\\ ) ( /( ( /( '
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+ '\n(()/(()/( )\\()|()/( ( )\\ ) /(()/( )\\()) )\\())'
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+ '\n /(_))(_)|(_)\\ /(_)) )\\ (((_) ( )(_))(_)|(_)\\ ((_)\\ '
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+ '\n(_))(_)) ((_|_))_ _ ((_))\\___(_(_()|__)) ((_) _((_)'
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+ '\n| _ \\ _ \\ / _ \\| \\| | | ((/ __|_ _|_ _| / _ \\| \\| |'
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+ '\n| _/ /| (_) | |) | |_| || (__ | | | | | (_) | . |'
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+ '\n|_| |_|_\\ \\___/|___/ \\___/ \\___| |_| |___| \\___/|_|\\_|'
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+ '\n'
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);
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if (!opts.force) {
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const readline = require('readline');
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const rl = readline.createInterface({
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input: process.stdin,
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output: process.stdout
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});
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const answer = await new Promise(resolve => {
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rl.question('Are you sure? (Default: no) [yes|no] ', resolve);
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});
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rl.close();
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if (answer !== 'yes')
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throw new Error('Changes aborted');
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}
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}
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// Apply versions
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console.log('Applying versions.');
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let nChanges = 0;
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let silent = true;
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const versionsDir = opts.versionsDir;
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function logVersion(version, name, action, error) {
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let actionMsg;
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switch(action) {
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case 'apply':
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actionMsg = '[A]'.green;
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break;
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case 'ignore':
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actionMsg = '[I]'.blue;
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break;
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default:
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actionMsg = '[W]'.yellow;
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}
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console.log('', (actionMsg + version).bold, name);
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}
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function logScript(type, message, error) {
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console.log(' ', type.bold, message);
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}
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const skipFiles = new Set([
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'README.md',
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'.archive'
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]);
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if (await fs.pathExists(versionsDir)) {
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const versionDirs = await fs.readdir(versionsDir);
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for (const versionDir of versionDirs) {
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if (skipFiles.has(versionDir)) continue;
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const version = await myt.loadVersion(versionDir);
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if (!version) {
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logVersion('[?????]'.yellow, versionDir, 'warn',
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`Wrong directory name.`
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);
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continue;
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}
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if (version.number.length != dbVersion.number.length) {
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logVersion('[*****]'.gray, versionDir, 'warn'
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`Bad version length, should have ${dbVersion.number.length} characters.`
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);
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continue;
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}
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const {apply} = version;
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if (apply) silent = false;
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if (silent) continue;
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const action = apply ? 'apply' : 'ignore';
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logVersion(`[${version.number}]`.cyan, version.name, action);
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if (!apply) continue;
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for (const script of version.scripts) {
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const scriptFile = script.file;
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if (!script.matchRegex) {
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logScript('[W]'.yellow, scriptFile, `Wrong file name.`);
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continue;
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}
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const actionMsg = script.apply ? '[+]'.green : '[I]'.blue;
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logScript(actionMsg, scriptFile);
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if (!script.apply) continue;
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let err;
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try {
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await connExt.queryFromFile(pushConn,
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`${versionsDir}/${versionDir}/${scriptFile}`);
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} catch (e) {
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err = e;
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}
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await conn.query(
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`INSERT INTO versionLog
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SET code = ?,
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number = ?,
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file = ?,
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user = USER(),
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updated = NOW(),
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errorNumber = ?,
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errorMessage = ?
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ON DUPLICATE KEY UPDATE
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updated = VALUES(updated),
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user = VALUES(user),
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errorNumber = VALUES(errorNumber),
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errorMessage = VALUES(errorMessage)`,
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[
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opts.code,
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version.number,
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scriptFile,
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err && err.errno,
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err && err.message
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]
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);
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if (err) throw err;
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nChanges++;
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}
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await this.updateVersion('number', version.number);
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}
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}
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// Apply routines
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console.log('Applying changed routines.');
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const gitExists = await fs.pathExists(`${opts.workspace}/.git`);
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let nRoutines = 0;
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const changes = await this.changedRoutines(dbVersion.gitCommit);
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const routines = [];
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for (const change of changes)
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if (change.isRoutine)
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routines.push([
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change.schema,
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change.name,
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change.type.name
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]);
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if (routines.length) {
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await conn.query(
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`DROP TEMPORARY TABLE IF EXISTS tProcsPriv`
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);
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await conn.query(
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`CREATE TEMPORARY TABLE tProcsPriv
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ENGINE = MEMORY
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SELECT * FROM mysql.procs_priv
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WHERE (Db, Routine_name, Routine_type) IN (?)`,
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[routines]
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);
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}
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const engine = new ExporterEngine(conn, opts);
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await engine.init();
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async function finalize() {
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await engine.saveInfo();
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if (routines.length) {
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await conn.query('FLUSH PRIVILEGES');
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await conn.query(`DROP TEMPORARY TABLE tProcsPriv`);
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}
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}
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for (const change of changes)
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try {
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if (opts.triggers && change.type.name === 'TRIGGER')
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continue;
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const schema = change.schema;
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const name = change.name;
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const type = change.type.name.toLowerCase();
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const fullPath = `${opts.routinesDir}/${change.path}.sql`;
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const exists = await fs.pathExists(fullPath);
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let newSql;
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if (exists)
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newSql = await fs.readFile(fullPath, 'utf8');
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const oldSql = await engine.fetchRoutine(type, schema, name);
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const oldSum = engine.getShaSum(type, schema, name);
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const isMockFn = type == 'function'
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&& schema == opts.versionSchema
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&& opts.remote == 'local'
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&& opts.mockDate
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&& opts.mockFunctions
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&& opts.mockFunctions.indexOf(name) !== -1;
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const ignore = newSql == oldSql || isMockFn;
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let statusMsg;
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if (exists && !oldSql)
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statusMsg = '[+]'.green;
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else if (!exists)
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statusMsg = '[-]'.red;
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else
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statusMsg = '[·]'.yellow;
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let actionMsg;
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if (ignore)
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actionMsg = '[I]'.blue;
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else
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actionMsg = '[A]'.green;
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const typeMsg = `[${change.type.abbr}]`[change.type.color];
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console.log('',
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(actionMsg + statusMsg).bold,
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typeMsg.bold,
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change.fullName
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);
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if (!ignore) {
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const scapedSchema = SqlString.escapeId(schema, true);
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if (exists) {
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if (change.type.name === 'VIEW')
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await pushConn.query(`USE ${scapedSchema}`);
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await connExt.multiQuery(pushConn, newSql);
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if (change.isRoutine) {
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await conn.query(
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`INSERT IGNORE INTO mysql.procs_priv
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SELECT * FROM tProcsPriv
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WHERE Db = ?
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AND Routine_name = ?
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AND Routine_type = ?`,
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[schema, name, change.type.name]
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);
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}
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if (opts.sums || oldSum || (opts.sumViews && type === 'view'))
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await engine.fetchShaSum(type, schema, name);
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} else {
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const escapedName =
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scapedSchema + '.' +
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SqlString.escapeId(name, true);
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const query = `DROP ${change.type.name} IF EXISTS ${escapedName}`;
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await pushConn.query(query);
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engine.deleteShaSum(type, schema, name);
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}
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nRoutines++;
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}
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} catch (err) {
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try {
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await finalize();
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} catch (e) {
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console.error(e);
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}
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throw err;
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}
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await finalize();
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if (nRoutines > 0) {
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console.log(` -> ${nRoutines} routines have changed.`);
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} else
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console.log(` -> No routines changed.`);
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if (gitExists && opts.commit) {
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const repo = await nodegit.Repository.open(this.opts.workspace);
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const head = await repo.getHeadCommit();
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if (head && dbVersion.gitCommit !== head.sha())
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await this.updateVersion('gitCommit', head.sha());
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}
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// End
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await pushConn.end();
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}
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async updateVersion(column, value) {
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column = SqlString.escapeId(column, true);
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await this.conn.query(
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`INSERT INTO version
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SET code = ?,
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${column} = ?,
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updated = NOW()
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ON DUPLICATE KEY UPDATE
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${column} = VALUES(${column}),
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updated = VALUES(updated)`,
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[
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this.opts.code,
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value
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]
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);
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}
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async changedRoutines(commitSha) {
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const repo = await this.myt.openRepo();
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const changes = [];
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const changesMap = new Map();
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async function pushChanges(diff) {
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if (!diff) return;
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const patches = await diff.patches();
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for (const patch of patches) {
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const path = patch.newFile().path();
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const match = path.match(/^routines\/(.+)\.sql$/);
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if (!match) continue;
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let change = changesMap.get(match[1]);
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if (!change) {
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change = {path: match[1]};
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changes.push(change);
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changesMap.set(match[1], change);
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}
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change.mark = patch.isDeleted() ? '-' : '+';
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}
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}
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const head = await repo.getHeadCommit();
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if (head && commitSha) {
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let commit;
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let notFound;
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try {
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commit = await repo.getCommit(commitSha);
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notFound = false;
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} catch (err) {
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if (err.errorFunction == 'Commit.lookup')
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notFound = true;
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else
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throw err;
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}
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if (notFound) {
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console.warn(`Database commit not found, trying git fetch`.yellow);
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await repo.fetchAll();
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commit = await repo.getCommit(commitSha);
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}
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const commitTree = await commit.getTree();
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const headTree = await head.getTree();
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const diff = await headTree.diff(commitTree);
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await pushChanges(diff);
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}
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await pushChanges(await repoExt.getUnstaged(repo));
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await pushChanges(await repoExt.getStaged(repo));
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const routines = [];
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for (const change of changes)
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routines.push(new Routine(change));
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return routines.sort((a, b) => {
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if (b.mark != a.mark)
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return b.mark == '-' ? -1 : 1;
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if (b.type.name !== a.type.name) {
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if (b.type.name == 'VIEW')
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return -1;
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if (a.type.name == 'VIEW')
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return 1;
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}
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return a.path.localeCompare(b.path);
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});
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}
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}
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const typeMap = {
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events: {
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name: 'EVENT',
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abbr: 'EVNT',
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color: 'cyan'
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},
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functions: {
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name: 'FUNCTION',
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abbr: 'FUNC',
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color: 'cyan'
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},
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procedures: {
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name: 'PROCEDURE',
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abbr: 'PROC',
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color: 'yellow'
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},
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triggers: {
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name: 'TRIGGER',
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abbr: 'TRIG',
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color: 'blue'
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},
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views: {
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name: 'VIEW',
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abbr: 'VIEW',
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color: 'magenta'
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},
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};
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const routineTypes = new Set([
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'FUNCTION',
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'PROCEDURE'
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]);
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class Routine {
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constructor(change) {
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const path = change.path;
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const split = path.split('/');
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const schema = split[0];
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const type = typeMap[split[1]];
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const name = split[2];
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if (split.length !== 3 || !type)
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throw new Error(`Wrong routine path for '${path}', check that the sql file is located in the correct directory`);
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Object.assign(this, {
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path,
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mark: change.mark,
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type,
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schema,
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name,
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fullName: `${schema}.${name}`,
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isRoutine: routineTypes.has(type.name)
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});
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}
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}
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module.exports = Push;
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if (require.main === module)
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new Myt().run(Push);
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