launchpad.net/~rogpeppe/juju-core/500-errgo-fix@v0.0.0-20140213181702-000000002356/cmd/juju/addrelation.go (about)

     1  // Copyright 2012, 2013 Canonical Ltd.
     2  // Licensed under the AGPLv3, see LICENCE file for details.
     3  
     4  package main
     5  
     6  import (
     7  	"fmt"
     8  
     9  	"launchpad.net/juju-core/cmd"
    10  	"launchpad.net/juju-core/juju"
    11  )
    12  
    13  // AddRelationCommand adds a relation between two service endpoints.
    14  type AddRelationCommand struct {
    15  	cmd.EnvCommandBase
    16  	Endpoints []string
    17  }
    18  
    19  func (c *AddRelationCommand) Info() *cmd.Info {
    20  	return &cmd.Info{
    21  		Name:    "add-relation",
    22  		Args:    "<service1>[:<relation name1>] <service2>[:<relation name2>]",
    23  		Purpose: "add a relation between two services",
    24  	}
    25  }
    26  
    27  func (c *AddRelationCommand) Init(args []string) error {
    28  	if len(args) != 2 {
    29  		return fmt.Errorf("a relation must involve two services")
    30  	}
    31  	c.Endpoints = args
    32  	return nil
    33  }
    34  
    35  func (c *AddRelationCommand) Run(_ *cmd.Context) error {
    36  	client, err := juju.NewAPIClientFromName(c.EnvName)
    37  	if err != nil {
    38  		return err
    39  	}
    40  	defer client.Close()
    41  	_, err = client.AddRelation(c.Endpoints...)
    42  	return err
    43  }