X-Git-Url: https://git.squeep.com/?a=blobdiff_plain;f=priv%2Frepo%2Fmigrations%2F20181218172826_users_and_activities_flake_id.exs;h=c58d829afcdf84ffb24a884f5b48cea35dd71078;hb=b221d77a6da07c684bdbc63ddf4500e0d7ffeae8;hp=39d45f7e8be30f09a4fe4b79c2c0db3632cd0f9d;hpb=465fb4327dab5eccdb8b88d6da5670007bd7110e;p=akkoma

diff --git a/priv/repo/migrations/20181218172826_users_and_activities_flake_id.exs b/priv/repo/migrations/20181218172826_users_and_activities_flake_id.exs
index 39d45f7e8..c58d829af 100644
--- a/priv/repo/migrations/20181218172826_users_and_activities_flake_id.exs
+++ b/priv/repo/migrations/20181218172826_users_and_activities_flake_id.exs
@@ -1,5 +1,9 @@
 defmodule Pleroma.Repo.Migrations.UsersAndActivitiesFlakeId do
   use Ecto.Migration
+  alias Pleroma.Clippy
+  require Integer
+  import Ecto.Query
+  alias Pleroma.Repo
 
   # This migrates from int serial IDs to custom Flake:
   #   1- create a temporary uuid column
@@ -8,28 +12,38 @@ defmodule Pleroma.Repo.Migrations.UsersAndActivitiesFlakeId do
   #   4- update relation pkeys with the new ids
   #   5- rename the temporary column to id
   #   6- re-create the constraints
-  def change do
+  def up do
     # Old serial int ids are transformed to 128bits with extra padding.
     # The application (in `Pleroma.FlakeId`) handles theses IDs properly as integers; to keep compatibility
     # with previously issued ids.
-    #execute "update activities set external_id = CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid);"
-    #execute "update users set external_id = CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid);"
+    # execute "update activities set external_id = CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid);"
+    # execute "update users set external_id = CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid);"
 
-    # Lock both tables to avoid a running server to meddling with our transaction
-    execute "LOCK TABLE activities;"
-    execute "LOCK TABLE users;"
+    clippy = start_clippy_heartbeats()
 
-    execute "ALTER TABLE activities DROP CONSTRAINT activities_pkey CASCADE;"
-    execute "ALTER TABLE users DROP CONSTRAINT users_pkey CASCADE;"
+    # Lock both tables to avoid a running server to meddling with our transaction
+    execute("LOCK TABLE activities;")
+    execute("LOCK TABLE users;")
 
-    execute "ALTER TABLE activities ALTER COLUMN id DROP default;"
-    execute "ALTER TABLE users ALTER COLUMN id DROP default;"
+    execute("""
+      ALTER TABLE activities
+      DROP CONSTRAINT activities_pkey CASCADE,
+      ALTER COLUMN id DROP default,
+      ALTER COLUMN id SET DATA TYPE uuid USING CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid),
+      ADD PRIMARY KEY (id);
+    """)
 
-    execute "ALTER TABLE activities ALTER COLUMN id SET DATA TYPE uuid USING CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid);"
-    execute "ALTER TABLE users ALTER COLUMN id SET DATA TYPE uuid USING CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid);"
+    execute("""
+    ALTER TABLE users
+    DROP CONSTRAINT users_pkey CASCADE,
+    ALTER COLUMN id DROP default,
+    ALTER COLUMN id SET DATA TYPE uuid USING CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid),
+    ADD PRIMARY KEY (id);
+    """)
 
-    execute "ALTER TABLE activities ADD PRIMARY KEY (id);"
-    execute "ALTER TABLE users ADD PRIMARY KEY (id);"
+    execute(
+      "UPDATE users SET info = jsonb_set(info, '{pinned_activities}', array_to_json(ARRAY(select jsonb_array_elements_text(info->'pinned_activities')))::jsonb);"
+    )
 
     # Fkeys:
     # Activities - Referenced by:
@@ -44,13 +58,81 @@ defmodule Pleroma.Repo.Migrations.UsersAndActivitiesFlakeId do
     #  TABLE "push_subscriptions" CONSTRAINT "push_subscriptions_user_id_fkey" FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
     #  TABLE "websub_client_subscriptions" CONSTRAINT "websub_client_subscriptions_user_id_fkey" FOREIGN KEY (user_id) REFERENCES users(id)
 
-    execute "ALTER TABLE notifications ALTER COLUMN activity_id SET DATA TYPE uuid USING CAST( LPAD( TO_HEX(activity_id), 32, '0' ) AS uuid);"
-    execute "ALTER TABLE notifications ADD CONSTRAINT notifications_activity_id_fkey FOREIGN KEY (activity_id) REFERENCES activities(id) ON DELETE CASCADE;"
+    execute("""
+    ALTER TABLE notifications
+    ALTER COLUMN activity_id SET DATA TYPE uuid USING CAST( LPAD( TO_HEX(activity_id), 32, '0' ) AS uuid),
+    ADD CONSTRAINT notifications_activity_id_fkey FOREIGN KEY (activity_id) REFERENCES activities(id) ON DELETE CASCADE;
+    """)
 
-    for table <- ~w(notifications filters lists oauth_authorizations oauth_tokens password_reset_tokens push_subscriptions websub_client_subscriptions) do
-      execute "ALTER TABLE #{table} ALTER COLUMN user_id SET DATA TYPE uuid USING CAST( LPAD( TO_HEX(user_id), 32, '0' ) AS uuid);"
-      execute "ALTER TABLE #{table} ADD CONSTRAINT #{table}_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE;"
+    for table <-
+          ~w(notifications filters lists oauth_authorizations oauth_tokens password_reset_tokens push_subscriptions websub_client_subscriptions) do
+      execute("""
+      ALTER TABLE #{table}
+      ALTER COLUMN user_id SET DATA TYPE uuid USING CAST( LPAD( TO_HEX(user_id), 32, '0' ) AS uuid),
+      ADD CONSTRAINT #{table}_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE;
+      """)
     end
 
+    flush()
+
+    stop_clippy_heartbeats(clippy)
+  end
+
+  def down, do: :ok
+
+  defp start_clippy_heartbeats() do
+    count = from(a in "activities", select: count(a.id)) |> Repo.one!()
+
+    if count > 5000 do
+      heartbeat_interval = :timer.minutes(2) + :timer.seconds(30)
+
+      all_tips =
+        Clippy.tips() ++
+          [
+            "The migration is still running, maybe it's time for another “tea”?",
+            "Happy rabbits practice a cute behavior known as a\n“binky:” they jump up in the air\nand twist\nand spin around!",
+            "Nothing and everything.\n\nI still work.",
+            "Pleroma runs on a Raspberry Pi!\n\n  … but this migration will take forever if you\nactually run on a raspberry pi",
+            "Status? Stati? Post? Note? Toot?\nRepeat? Reboost? Boost? Retweet? Retoot??\n\nI-I'm confused."
+          ]
+
+      heartbeat = fn heartbeat, runs, all_tips, tips ->
+        tips =
+          if Integer.is_even(runs) do
+            tips = if tips == [], do: all_tips, else: tips
+            [tip | tips] = Enum.shuffle(tips)
+            Clippy.puts(tip)
+            tips
+          else
+            IO.puts(
+              "\n -- #{DateTime.to_string(DateTime.utc_now())} Migration still running, please wait…\n"
+            )
+
+            tips
+          end
+
+        :timer.sleep(heartbeat_interval)
+        heartbeat.(heartbeat, runs + 1, all_tips, tips)
+      end
+
+      Clippy.puts([
+        [:red, :bright, "It looks like you are running an older instance!"],
+        [""],
+        [:bright, "This migration may take a long time", :reset, " -- so you probably should"],
+        ["go drink a cofe, or a tea, or a beer, a whiskey, a vodka,"],
+        ["while it runs to deal with your temporary fediverse pause!"]
+      ])
+
+      :timer.sleep(heartbeat_interval)
+      spawn_link(fn -> heartbeat.(heartbeat, 1, all_tips, []) end)
+    end
+  end
+
+  defp stop_clippy_heartbeats(pid) do
+    if pid do
+      Process.unlink(pid)
+      Process.exit(pid, :kill)
+      Clippy.puts([[:green, :bright, "Hurray!!", "", "", "Migration completed!"]])
+    end
   end
 end