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@@ -20,30 +20,6 @@ defmodule Mix.Tasks.Pleroma.Database do |
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@shortdoc "A collection of database related tasks" |
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@moduledoc File.read!("docs/administration/CLI_tasks/database.md") |
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# Rolls back a specific migration (leaving subsequent migrations applied) |
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# Based on https://stackoverflow.com/a/53825840 |
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def run(["rollback", version]) do |
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start_pleroma() |
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version = String.to_integer(version) |
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re = ~r/^#{version}_.*\.exs/ |
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path = Application.app_dir(:pleroma, Path.join(["priv", "repo", "migrations"])) |
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result = |
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with {:find, "" <> file} <- {:find, Enum.find(File.ls!(path), &String.match?(&1, re))}, |
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{:compile, [{mod, _} | _]} <- {:compile, Code.compile_file(Path.join(path, file))}, |
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{:rollback, :ok} <- {:rollback, Ecto.Migrator.down(Repo, version, mod)} do |
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{:ok, "Reversed migration: #{file}"} |
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else |
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{:find, _} -> {:error, "No migration found with version prefix: #{version}"} |
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{:compile, e} -> {:error, "Problem compiling migration module: #{inspect(e)}"} |
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{:rollback, e} -> {:error, "Problem reversing migration: #{inspect(e)}"} |
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e -> {:error, "Something unexpected happened: #{inspect(e)}"} |
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end |
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IO.inspect(result) |
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end |
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def run(["remove_embedded_objects" | args]) do |
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{options, [], []} = |
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OptionParser.parse( |
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@@ -194,4 +170,33 @@ defmodule Mix.Tasks.Pleroma.Database do |
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end) |
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|> Stream.run() |
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end |
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# Rolls back a specific migration (leaving subsequent migrations applied). |
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# WARNING: imposes a risk of unrecoverable data loss — proceed at your own responsibility. |
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# Based on https://stackoverflow.com/a/53825840 |
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def run(["rollback", version]) do |
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prompt = "SEVERE WARNING: this operation may result in unrecoverable data loss. Continue?" |
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if shell_prompt(prompt, "n") in ~w(Yn Y y) do |
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{_, result, _} = |
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Ecto.Migrator.with_repo(Pleroma.Repo, fn repo -> |
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version = String.to_integer(version) |
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re = ~r/^#{version}_.*\.exs/ |
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path = Ecto.Migrator.migrations_path(repo) |
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with {:find, "" <> file} <- {:find, Enum.find(File.ls!(path), &String.match?(&1, re))}, |
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{:compile, [{mod, _} | _]} <- {:compile, Code.compile_file(Path.join(path, file))}, |
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{:rollback, :ok} <- {:rollback, Ecto.Migrator.down(repo, version, mod)} do |
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{:ok, "Reversed migration: #{file}"} |
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else |
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{:find, _} -> {:error, "No migration found with version prefix: #{version}"} |
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{:compile, e} -> {:error, "Problem compiling migration module: #{inspect(e)}"} |
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{:rollback, e} -> {:error, "Problem reversing migration: #{inspect(e)}"} |
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e -> {:error, "Something unexpected happened: #{inspect(e)}"} |
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end |
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end) |
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IO.inspect(result) |
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end |
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end |
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end |