diff options
migrations - wip - 005 multivault migration
Diffstat (limited to 'app/scripts/lib/migrator')
-rw-r--r-- | app/scripts/lib/migrator/index.js | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/app/scripts/lib/migrator/index.js b/app/scripts/lib/migrator/index.js index 02d8c2335..ab5a757b3 100644 --- a/app/scripts/lib/migrator/index.js +++ b/app/scripts/lib/migrator/index.js @@ -7,22 +7,31 @@ class Migrator { this.migrations = migrations.sort((a, b) => a.version - b.version) let lastMigration = this.migrations.slice(-1)[0] // use specified defaultVersion or highest migration version - this.defaultVersion = opts.defaultVersion || lastMigration && lastMigration.version || 0 + this.defaultVersion = opts.defaultVersion || (lastMigration && lastMigration.version) || 0 } // run all pending migrations on meta in place - migrateData (meta = { version: this.defaultVersion }) { + migrateData (versionedData = this.generateInitialState()) { let remaining = this.migrations.filter(migrationIsPending) return ( - asyncQ.eachSeries(remaining, (migration) => migration.migrate(meta)) - .then(() => meta) + asyncQ.eachSeries(remaining, (migration) => migration.migrate(versionedData)) + .then(() => versionedData) ) // migration is "pending" if hit has a higher // version number than currentVersion function migrationIsPending(migration) { - return migration.version > meta.version + return migration.version > versionedData.meta.version + } + } + + generateInitialState (initState) { + return { + meta: { + version: this.defaultVersion, + }, + data: initState, } } |