gitlab-org--gitlab-foss/app/controllers/projects/blame_controller.rb

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# Controller for viewing a file's blame
class Projects::BlameController < Projects::ApplicationController
include ExtractsPath
before_action :require_non_empty_project
before_action :assign_ref_vars
before_action :authorize_download_code!
def show
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@blob = @repository.blob_at(@commit.id, @path)
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return render_404 unless @blob
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environment_params = @repository.branch_exists?(@ref) ? { ref: @ref } : { commit: @commit }
@environment = EnvironmentsFinder.new(@project, current_user, environment_params).execute.last
@blame_groups = Gitlab::Blame.new(@blob, @commit).groups
end
end