2019-07-07 11:18:12 +05:30
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# frozen_string_literal: true
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#
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# fog-core v2 changed the namespace format:
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#
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# Old: Fog::<service>::<provider> (e.g. Fog::Storage::AWS).
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# New: Fog::<provider>::<service> (e.g. Fog::AWS::Storage)
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#
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# To preserve backwards compatibility, fog-core v2.1.0 tries to load the
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# old schema first, but falls back to the older version if that
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# fails. This creates misleading warnings with fog-aws. See
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# https://github.com/fog/fog-aws/issues/504#issuecomment-468067991 for
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# more details.
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#
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# fog-core v2.1.2 reverses the load order
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# (https://github.com/fog/fog-core/pull/229), which works for fog-aws
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# but causes a stream of deprecation warnings for fog-google.
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# fog-google locked the dependency on fog-core v2.1.0 as a result
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# (https://github.com/fog/fog-google/issues/421) until the new namespace
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# is supported.
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#
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# Since we currently have some Fog gems that have not been updated, this
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# monkey patch makes a smarter decision about which namespace to try
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# first. This squelches a significant number of warning messages.
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#
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# Since this patch is mostly cosmetic, it can be removed safely at any
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# time, but it's probably best to wait until the following issues are
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# closed:
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#
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# fog-google: https://github.com/fog/fog-google/issues/421
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# fog-rackspace: https://github.com/fog/fog-rackspace/issues/29
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# fog-aliyun: https://github.com/fog/fog-aliyun/issues/23
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module Fog
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module ServicesMixin
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# Gems that have not yet updated with the new fog-core namespace
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LEGACY_FOG_PROVIDERS = %w(google rackspace aliyun).freeze
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2019-12-21 20:55:43 +05:30
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# rubocop:disable Gitlab/ConstGetInheritFalse
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2019-07-07 11:18:12 +05:30
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def service_provider_constant(service_name, provider_name)
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args = service_provider_search_args(service_name, provider_name)
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Fog.const_get(args.first).const_get(*const_get_args(args.second))
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rescue NameError # Try to find the constant from in an alternate location
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Fog.const_get(args.second).const_get(*const_get_args(args.first))
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end
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def service_provider_search_args(service_name, provider_name)
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if LEGACY_FOG_PROVIDERS.include?(provider_name.downcase)
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[service_name, provider_name]
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else
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[provider_name, service_name]
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end
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end
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2019-12-21 20:55:43 +05:30
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# rubocop:enable Gitlab/ConstGetInheritFalse
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2019-07-07 11:18:12 +05:30
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end
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end
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