From 91ddabbb9b07aceda161210fe8f4262e936a0a44 Mon Sep 17 00:00:00 2001
From: Elian Doran <contact@eliandoran.me>
Date: Sun, 18 Feb 2024 13:44:41 +0200
Subject: [PATCH] server-ts: Remove redundant file

---
 src/services/migration.js | 137 --------------------------------------
 1 file changed, 137 deletions(-)
 delete mode 100644 src/services/migration.js

diff --git a/src/services/migration.js b/src/services/migration.js
deleted file mode 100644
index fc6c04443..000000000
--- a/src/services/migration.js
+++ /dev/null
@@ -1,137 +0,0 @@
-const backupService = require('./backup');
-const sql = require('./sql');
-const fs = require('fs-extra');
-const log = require('./log');
-const utils = require('./utils');
-const resourceDir = require('./resource_dir');
-const appInfo = require('./app_info');
-const cls = require('./cls');
-
-async function migrate() {
-    const currentDbVersion = getDbVersion();
-
-    if (currentDbVersion < 214) {
-        log.error("Direct migration from your current version is not supported. Please upgrade to the latest v0.60.4 first and only then to this version.");
-
-        utils.crash();
-        return;
-    }
-
-    // backup before attempting migration
-    await backupService.backupNow(
-        // creating a special backup for version 0.60.4, the changes in 0.61 are major.
-        currentDbVersion === 214
-            ? `before-migration-v060`
-            : 'before-migration'
-    );
-
-    const migrations = fs.readdirSync(resourceDir.MIGRATIONS_DIR).map(file => {
-        const match = file.match(/^([0-9]{4})__([a-zA-Z0-9_ ]+)\.(sql|js)$/);
-        if (!match) {
-            return null;
-        }
-
-        const dbVersion = parseInt(match[1]);
-        if (dbVersion > currentDbVersion) {
-            const name = match[2];
-            const type = match[3];
-
-            return {
-                dbVersion: dbVersion,
-                name: name,
-                file: file,
-                type: type
-            };
-        } else {
-            return null;
-        }
-    }).filter(el => !!el);
-
-    migrations.sort((a, b) => a.dbVersion - b.dbVersion);
-
-    // all migrations are executed in one transaction - upgrade either succeeds, or the user can stay at the old version
-    // otherwise if half of the migrations succeed, user can't use any version - DB is too "new" for the old app,
-    // and too old for the new app version.
-
-    cls.setMigrationRunning(true);
-
-    sql.transactional(() => {
-        for (const mig of migrations) {
-            try {
-                log.info(`Attempting migration to version ${mig.dbVersion}`);
-
-                executeMigration(mig);
-
-                sql.execute(`UPDATE options
-                             SET value = ?
-                             WHERE name = ?`, [mig.dbVersion.toString(), "dbVersion"]);
-
-                log.info(`Migration to version ${mig.dbVersion} has been successful.`);
-            } catch (e) {
-                log.error(`error during migration to version ${mig.dbVersion}: ${e.stack}`);
-                log.error("migration failed, crashing hard"); // this is not very user-friendly :-/
-
-                utils.crash();
-                break; // crash() above does not seem to work right away
-            }
-        }
-    });
-
-    if (currentDbVersion === 214) {
-        // special VACUUM after the big migration
-        log.info("VACUUMing database, this might take a while ...");
-        sql.execute("VACUUM");
-    }
-}
-
-function executeMigration(mig) {
-    if (mig.type === 'sql') {
-        const migrationSql = fs.readFileSync(`${resourceDir.MIGRATIONS_DIR}/${mig.file}`).toString('utf8');
-
-        console.log(`Migration with SQL script: ${migrationSql}`);
-
-        sql.executeScript(migrationSql);
-    } else if (mig.type === 'js') {
-        console.log("Migration with JS module");
-
-        const migrationModule = require(`${resourceDir.MIGRATIONS_DIR}/${mig.file}`);
-        migrationModule();
-    } else {
-        throw new Error(`Unknown migration type '${mig.type}'`);
-    }
-}
-
-function getDbVersion() {
-    return parseInt(sql.getValue("SELECT value FROM options WHERE name = 'dbVersion'"));
-}
-
-function isDbUpToDate() {
-    const dbVersion = getDbVersion();
-
-    const upToDate = dbVersion >= appInfo.dbVersion;
-
-    if (!upToDate) {
-        log.info(`App db version is ${appInfo.dbVersion}, while db version is ${dbVersion}. Migration needed.`);
-    }
-
-    return upToDate;
-}
-
-async function migrateIfNecessary() {
-    const currentDbVersion = getDbVersion();
-
-    if (currentDbVersion > appInfo.dbVersion && process.env.TRILIUM_IGNORE_DB_VERSION !== 'true') {
-        log.error(`Current DB version ${currentDbVersion} is newer than the current DB version ${appInfo.dbVersion}, which means that it was created by a newer and incompatible version of Trilium. Upgrade to the latest version of Trilium to resolve this issue.`);
-
-        utils.crash();
-    }
-
-    if (!isDbUpToDate()) {
-        await migrate();
-    }
-}
-
-module.exports = {
-    migrateIfNecessary,
-    isDbUpToDate
-};