42 lines
1.8 KiB
JavaScript
42 lines
1.8 KiB
JavaScript
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const debug = require('debug')('knex-migrator:lock-table');
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const errors = require('../lib/errors');
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/**
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* @description Private helper to create the migration lock table. The helper is called as part of `runDatabaseUpgrades`.
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* @returns {*}
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*/
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module.exports.up = function (connection) {
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debug('Ensure Lock Table.');
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return connection.schema.hasTable('migrations_lock')
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.then(function (table) {
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if (table) {
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return;
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}
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return connection.schema.createTable('migrations_lock', function (table) {
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table.string('lock_key', 191).nullable(false).primary();
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table.boolean('locked').default(0);
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table.dateTime('acquired_at').nullable();
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table.dateTime('released_at').nullable();
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}).then(function () {
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return connection('migrations_lock')
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.insert({
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lock_key: 'km01',
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locked: 0
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});
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}).catch(function (err) {
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// CASE: sqlite db is locked (e.g. concurrent migrations are running)
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if (err.errno === 5) {
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throw new errors.MigrationsAreLockedError({
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message: 'Migrations are running at the moment. Please wait that the lock get`s released.',
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context: 'Either the release was never released because of a e.g. died process or a parallel process is migrating at the moment.',
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help: 'If you know what you are doing, you can manually release the lock by running `UPDATE migrations_lock set locked=0 where lock_key=\'km01\';`.'
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});
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}
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throw err;
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});
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});
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};
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