Migration (#120)

Go mod tidy

[skip ci] Add modules/migration to docs

[skip ci] update date

fmt

Merge branch 'master' into feature/migration

# Conflicts:
#	pkg/routes/api/v1/info.go

Add docs on how to create a migrator

Add available migrators to /info endpoint

Return a message once everything was migrated successfully

Add swagger docs for wunderlist migration

Docs for migration [skip ci]

Fix due date fixture in migration test

Fix staticcheck

Fix lint

Logging and cleanup

Make the migrator work with real data

Add routes for migration

Fix misspell

Add method to store a full vikunja structure into vikunja

Add getting all data from wunderlist

Add attachment migration from wunderlist

Add done and done at to wunderlist migrator

Add todo

Add wunderlist auth url implementation

Fix lint

Finish wunderlist migration

Added all structs for the wunderlist migratior

Fix owner field being null for user shared namespaces (#119)

Update copyright year (#118)

Add option to disable registration (#117)

Added migrator interface

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/120

docs/content/doc/development/structure.md

@@ -22,6 +22,10 @@ In general, this api repo has the following structure:
   * `metrics`
   * `migration`
   * `models`
+  * `modules`
+    * `migration`
+      * `handler`
+      * `wunderlist`
   * `red`
   * `routes`
     * `api/v1`
@@ -85,7 +89,7 @@ To learn how it works and how to add new metrics, take a look at [how metrics wo
 This package handles all migrations.
 All migrations are stored and executed here.
 
-To learn more, take a look at the [migrations docs]({{< ref "../development/migrations.md">}}).
+To learn more, take a look at the [migrations docs]({{< ref "../development/db-migrations.md">}}).
 
 ### models
 
@@ -97,6 +101,12 @@ Because this package is pretty huge, there are several documents and how-to's ab
 * [Adding a feature]({{< ref "../practical-instructions/feature.md">}})
 * [Making calls to the database]({{< ref "../practical-instructions/database.md">}})
 
+### modules
+
+#### migration
+
+See [writing a migrator]({{< ref "migration.md" >}}).
+
 ### red (redis)
 
 This package initializes a connection to a redis server.