move site imports migration to clickhouse repo

priv/ingest_repo/migrations/20240528115149_migrate_site_imports.exs

@@ -0,0 +1,33 @@
+defmodule Plausible.IngestRepo.Migrations.MigrateSiteImports do
+  use Ecto.Migration
+
+  def up do
+    if Plausible.ce?() do
+      Ecto.Migrator.with_repo(Plausible.Repo, fn _repo ->
+        %Postgrex.Result{rows: rows} =
+          Plausible.Repo.query!(
+            "select inserted_at from schema_migrations where version=20240528115149"
+          )
+
+        case rows do
+          [[already_ran_at]] ->
+            IO.puts(
+              "skipping site_imports migration since it has already been run at #{already_ran_at}"
+            )
+
+            nil
+
+          [] ->
+            {:ok, _, _} =
+              Ecto.Migrator.with_repo(Plausible.ClickhouseRepo, fn _repo ->
+                Plausible.DataMigration.SiteImports.run(dry_run?: false)
+              end)
+        end
+      end)
+    end
+  end
+
+  def down do
+    raise "Irreversible"
+  end
+end