e935f01358
Fix temp files generated during the upload process not being cleaned up quickly enough. This included downloaded files, generated preview images, and Ugoira video conversions. Before we relied on `Tempfile` cleaning up files automatically. But this only happened when the Tempfile object was garbage collected, which could take a long time. In the meantime we could have hundreds of megabytes of temp files hanging around. The fix is to explicitly close temp files when we're done with them. But the standard `Tempfile` class doesn't immediately delete the file when it's closed. So we also have to introduce a Danbooru::Tempfile wrapper that deletes the tempfile as soon as it's closed.
48 lines
1.2 KiB
Ruby
48 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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# A StorageManager that stores file on remote filesystem using rclone. Rclone
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# can store files on most cloud storage systems. Requires the `rclone` binary to
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# be installed and configured.
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#
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# @see https://rclone.org/
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class StorageManager::Rclone < StorageManager
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class Error < StandardError; end
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attr_reader :remote, :bucket, :rclone_path, :rclone_options, :base_dir
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def initialize(remote:, bucket:, base_dir: nil, rclone_path: "rclone", rclone_options: {}, **options)
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@remote = remote
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@bucket = bucket
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@base_dir = base_dir.to_s
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@rclone_path = rclone_path
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@rclone_options = rclone_options
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super(**options)
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end
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def store(file, path)
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rclone "copyto", file.path, key(path)
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end
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def delete(path)
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rclone "delete", key(path)
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end
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def open(path)
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file = Danbooru::Tempfile.new(binmode: true)
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rclone "copyto", key(path), file.path
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file
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end
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def rclone(*args)
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success = system(rclone_path, *rclone_options, *args)
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raise Error, "rclone #{args.join(" ")}: #{$?}" if !success
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end
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def key(path)
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":#{remote}:#{bucket}#{full_path(path)}"
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end
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def full_path(path)
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File.join(base_dir, path)
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end
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end
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