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Viewing changes to src/github.com/juju/juju/upgrades/providerchanges.go

  • Committer: Nicholas Skaggs
  • Date: 2016-10-24 20:56:05 UTC
  • Revision ID: nicholas.skaggs@canonical.com-20161024205605-z8lta0uvuhtxwzwl
Initi with beta15

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src/github.com/juju/juju/upgrades/providerchanges.go
 
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// Copyright 2015 Canonical Ltd.
 
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// Licensed under the AGPLv3, see LICENCE file for details.
 
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package upgrades
 
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import (
 
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        "github.com/juju/errors"
 
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        "github.com/juju/juju/environs"
 
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        "github.com/juju/juju/provider"
 
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        "github.com/juju/version"
 
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)
 
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func upgradeProviderChanges(env environs.Environ, reader environConfigReader, ver version.Number) error {
 
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        cfg, err := reader.ModelConfig()
 
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        if err != nil {
 
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                return errors.Annotate(err, "reading model config")
 
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        }
 
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        upgrader, ok := env.(provider.Upgradeable)
 
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        if !ok {
 
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                logger.Debugf("provider %q has no upgrades", cfg.Type())
 
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                return nil
 
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        }
 
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        if err := upgrader.RunUpgradeStepsFor(ver); err != nil {
 
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                return errors.Annotate(err, "running upgrade steps")
 
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        }
 
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        return nil
 
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}