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Viewing changes to src/github.com/juju/juju/cmd/juju/service/unset.go

  • Committer: Package Import Robot
  • Author(s): Curtis C. Hovey
  • Date: 2015-09-29 19:43:29 UTC
  • mfrom: (47.1.4 wily-proposed)
  • Revision ID: package-import@ubuntu.com-20150929194329-9y496tbic30hc7vp
Tags: 1.24.6-0ubuntu1~15.04.1
https://launchpad.net/bugs/1500916
https://launchpad.net/bugs/1497087
Backport of 1.24.6 from wily. (LP: #1500916, #1497087)

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src/github.com/juju/juju/cmd/juju/service/unset.go
 
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// Copyright 2012-2015 Canonical Ltd.
 
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// Licensed under the AGPLv3, see LICENCE file for details.
 
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package service
 
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import (
 
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        "errors"
 
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        "github.com/juju/cmd"
 
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        "github.com/juju/juju/cmd/envcmd"
 
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        "github.com/juju/juju/cmd/juju/block"
 
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)
 
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// UnsetCommand sets configuration values of a service back
 
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// to their default.
 
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type UnsetCommand struct {
 
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        envcmd.EnvCommandBase
 
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        ServiceName string
 
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        Options     []string
 
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        api         UnsetServiceAPI
 
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}
 
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const unsetDoc = `
 
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Set one or more configuration options for the specified service to their
 
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default. See also the set commmand to set one or more configuration options for
 
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a specified service.
 
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`
 
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func (c *UnsetCommand) Info() *cmd.Info {
 
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        return &cmd.Info{
 
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                Name:    "unset",
 
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                Args:    "<service> name ...",
 
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                Purpose: "set service config options back to their default",
 
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                Doc:     unsetDoc,
 
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        }
 
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}
 
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func (c *UnsetCommand) Init(args []string) error {
 
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        if len(args) == 0 {
 
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                return errors.New("no service name specified")
 
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        }
 
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        c.ServiceName = args[0]
 
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        c.Options = args[1:]
 
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        if len(c.Options) == 0 {
 
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                return errors.New("no configuration options specified")
 
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        }
 
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        return nil
 
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}
 
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// UnsetServiceAPI defines the methods on the client API
 
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// that the service unset command calls.
 
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type UnsetServiceAPI interface {
 
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        Close() error
 
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        ServiceUnset(service string, options []string) error
 
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}
 
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func (c *UnsetCommand) getAPI() (UnsetServiceAPI, error) {
 
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        if c.api != nil {
 
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                return c.api, nil
 
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        }
 
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        return c.NewAPIClient()
 
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}
 
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// Run resets the configuration of a service.
 
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func (c *UnsetCommand) Run(ctx *cmd.Context) error {
 
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        apiclient, err := c.getAPI()
 
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        if err != nil {
 
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                return err
 
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        }
 
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        defer apiclient.Close()
 
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        return block.ProcessBlockedError(apiclient.ServiceUnset(c.ServiceName, c.Options), block.BlockChange)
 
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}