akkoma/lib/mix/tasks/migrate_local_uploads.ex

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defmodule Mix.Tasks.MigrateLocalUploads do
use Mix.Task
import Mix.Ecto
alias Pleroma.{Upload, Uploaders.Local, Uploaders.S3}
require Logger
@log_every 50
@shortdoc "Migrate uploads from local to remote storage"
def run([target_uploader | args]) do
delete? = Enum.member?(args, "--delete")
Application.ensure_all_started(:pleroma)
local_path = Pleroma.Config.get!([Local, :uploads])
uploader = Module.concat(Pleroma.Uploaders, target_uploader)
unless Code.ensure_loaded?(uploader) do
raise("The uploader #{inspect(uploader)} is not an existing/loaded module.")
end
target_enabled? = Pleroma.Config.get([Upload, :uploader]) == uploader
unless target_enabled? do
Pleroma.Config.put([Upload, :uploader], uploader)
end
Logger.info("Migrating files from local #{local_path} to #{to_string(uploader)}")
if delete? do
Logger.warn(
"Attention: uploaded files will be deleted, hope you have backups! (--delete ; cancel with ^C)"
)
:timer.sleep(:timer.seconds(5))
end
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uploads =
File.ls!(local_path)
|> Enum.map(fn id ->
root_path = Path.join(local_path, id)
cond do
File.dir?(root_path) ->
files = for file <- File.ls!(root_path), do: {id, file, Path.join([root_path, file])}
case List.first(files) do
{id, file, path} ->
{%Pleroma.Upload{id: id, name: file, path: id <> "/" <> file, tempfile: path},
root_path}
_ ->
nil
end
File.exists?(root_path) ->
file = Path.basename(id)
[hash, ext] = String.split(id, ".")
{%Pleroma.Upload{id: hash, name: file, path: file, tempfile: root_path}, root_path}
true ->
nil
end
end)
|> Enum.filter(& &1)
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total_count = length(uploads)
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Logger.info("Found #{total_count} uploads")
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uploads
|> Task.async_stream(
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fn {upload, root_path} ->
case Upload.store(upload, uploader: uploader, filters: [], size_limit: nil) do
{:ok, _} ->
if delete?, do: File.rm_rf!(root_path)
Logger.debug("uploaded: #{inspect(upload.path)} #{inspect(upload)}")
:ok
error ->
Logger.error("failed to upload #{inspect(upload.path)}: #{inspect(error)}")
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end
end,
timeout: 150_000
)
|> Stream.chunk_every(@log_every)
|> Enum.reduce(0, fn done, count ->
count = count + length(done)
Logger.info("Uploaded #{count}/#{total_count} files")
count
end)
Logger.info("Done!")
end
def run(_) do
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Logger.error("Usage: migrate_local_uploads S3|Swift [--delete]")
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end
end