Add initial version of dijkstra backend cloudron image

node_modules/knex/lib/migrate/sources/fs-migrations.js

@@ -0,0 +1,98 @@
+const fs = require('fs');
+const path = require('path');
+const { promisify } = require('util');
+const { sortBy, filter } = require('lodash');
+
+const readDirAsync = promisify(fs.readdir);
+
+const DEFAULT_LOAD_EXTENSIONS = Object.freeze([
+  '.co',
+  '.coffee',
+  '.eg',
+  '.iced',
+  '.js',
+  '.litcoffee',
+  '.ls',
+  '.ts',
+]);
+
+class FsMigrations {
+  constructor(migrationDirectories, sortDirsSeparately, loadExtensions) {
+    this.sortDirsSeparately = sortDirsSeparately;
+
+    if (!Array.isArray(migrationDirectories)) {
+      migrationDirectories = [migrationDirectories];
+    }
+    this.migrationsPaths = migrationDirectories;
+    this.loadExtensions = loadExtensions || DEFAULT_LOAD_EXTENSIONS;
+  }
+
+  /**
+   * Gets the migration names
+   * @returns Promise<string[]>
+   */
+  getMigrations(loadExtensions) {
+    // Get a list of files in all specified migration directories
+    const readMigrationsPromises = this.migrationsPaths.map((configDir) => {
+      const absoluteDir = path.resolve(process.cwd(), configDir);
+      return readDirAsync(absoluteDir).then((files) => ({
+        files,
+        configDir,
+        absoluteDir,
+      }));
+    });
+
+    return Promise.all(readMigrationsPromises).then((allMigrations) => {
+      const migrations = allMigrations.reduce((acc, migrationDirectory) => {
+        // When true, files inside the folder should be sorted
+        if (this.sortDirsSeparately) {
+          migrationDirectory.files = migrationDirectory.files.sort();
+        }
+
+        migrationDirectory.files.forEach((file) =>
+          acc.push({ file, directory: migrationDirectory.configDir })
+        );
+
+        return acc;
+      }, []);
+
+      // If true we have already sorted the migrations inside the folders
+      // return the migrations fully qualified
+      if (this.sortDirsSeparately) {
+        return filterMigrations(
+          this,
+          migrations,
+          loadExtensions || this.loadExtensions
+        );
+      }
+
+      return filterMigrations(
+        this,
+        sortBy(migrations, 'file'),
+        loadExtensions || this.loadExtensions
+      );
+    });
+  }
+
+  getMigrationName(migration) {
+    return migration.file;
+  }
+
+  getMigration(migration) {
+    const absoluteDir = path.resolve(process.cwd(), migration.directory);
+    return require(path.join(absoluteDir, migration.file));
+  }
+}
+
+function filterMigrations(migrationSource, migrations, loadExtensions) {
+  return filter(migrations, (migration) => {
+    const migrationName = migrationSource.getMigrationName(migration);
+    const extension = path.extname(migrationName);
+    return loadExtensions.includes(extension);
+  });
+}
+
+module.exports = {
+  DEFAULT_LOAD_EXTENSIONS,
+  FsMigrations,
+};