74 lines
2.0 KiB
Ruby
74 lines
2.0 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Git
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# This class behaves like a struct with fields :blob_id, :blob_size, :operation, :old_path, :new_path
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# All those fields are (binary) strings or integers
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class RawDiffChange
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attr_reader :blob_id, :blob_size, :old_path, :new_path, :operation
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def initialize(raw_change)
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if raw_change.is_a?(Gitaly::GetRawChangesResponse::RawChange)
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@blob_id = raw_change.blob_id
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@blob_size = raw_change.size
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@old_path = raw_change.old_path_bytes.presence
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@new_path = raw_change.new_path_bytes.presence
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@operation = raw_change.operation&.downcase || :unknown
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else
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parse(raw_change)
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end
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end
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private
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# Input data has the following format:
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#
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# When a file has been modified:
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# 7e3e39ebb9b2bf433b4ad17313770fbe4051649c 669 M\tfiles/ruby/popen.rb
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#
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# When a file has been renamed:
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# 85bc2f9753afd5f4fc5d7c75f74f8d526f26b4f3 107 R060\tfiles/js/commit.js.coffee\tfiles/js/commit.coffee
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def parse(raw_change)
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@blob_id, @blob_size, @raw_operation, raw_paths = raw_change.split(' ', 4)
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@blob_size = @blob_size.to_i
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@operation = extract_operation
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@old_path, @new_path = extract_paths(raw_paths)
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end
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def extract_paths(file_path)
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case operation
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when :copied, :renamed
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file_path.split(/\t/)
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when :deleted
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[file_path, nil]
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when :added
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[nil, file_path]
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else
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[file_path, file_path]
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end
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end
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def extract_operation
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return :unknown unless @raw_operation
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case @raw_operation[0]
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when 'A'
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:added
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when 'C'
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:copied
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when 'D'
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:deleted
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when 'M'
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:modified
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when 'R'
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:renamed
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when 'T'
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:type_changed
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else
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:unknown
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end
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end
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end
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end
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end
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