Entity Framework Core Migrations Script Generator

Entity Framework Core Migrations Script Generator is a very simple extensions to make it easy to generate migration script for projects using Entity Framework Core with Code-First. This tool internally calls dotnet ef migrations script.

How to generate migration scripts

With this task it's very easy to generate migration scripts:

• Add Entity Framework Core Migrations Script Generator task to your build pipeline.
• Select the project where the database project.
• Enter the names of the database contexts.
• If your database context is defined in a library, you also need to select an executable project that is using this library as start-up project.
• You could also change the directory where the migrations scripts should be stored. By default they are stored in a folder named migrations.
• If you are using .NET Core 3, you could enable Install dependencies for .NET Core 3 to auto install the global tool dotnet-ef.
• If you are using .NET Core 2, you may be able to build your application but you get an error when creating migration scripts. If that's the case you're probably using .NET Core 3 SDK which doesn't have built-in support to do this. To solve this, just add Use .NET Core before this task and select version 2.2.207 for instance.

When the build is completed you should have migrations scripts stored in the package. They named {{NameOfTheDatabaseContext}}.sql. Under most circumstances it's safe to run these migrations on every release even if you haven't done any changes.

How to apply migrations to your databases

When you have your migration scripts ready you just need to apply them in a release pipeline. If you have your databases in Azure you could to like this:

• Add the task Azure SQL Database Deployment to your release pipeline.
• Enter the details of your database.
• In the option SQL Script select the migration script from the package.

If you have several databases, add a new task for each database.