github.com/djenriquez/nomad-1@v0.8.1/command/acl_policy_list.go (about)

     1  package command
     2  
     3  import (
     4  	"fmt"
     5  	"strings"
     6  
     7  	"github.com/hashicorp/nomad/api"
     8  	"github.com/posener/complete"
     9  )
    10  
    11  type ACLPolicyListCommand struct {
    12  	Meta
    13  }
    14  
    15  func (c *ACLPolicyListCommand) Help() string {
    16  	helpText := `
    17  Usage: nomad acl policy list
    18  
    19    List is used to list available ACL policies.
    20  
    21  General Options:
    22  
    23    ` + generalOptionsUsage() + `
    24  
    25  List Options:
    26  
    27    -json
    28      Output the ACL policies in a JSON format.
    29  
    30    -t
    31      Format and display the ACL policies using a Go template.
    32  `
    33  
    34  	return strings.TrimSpace(helpText)
    35  }
    36  
    37  func (c *ACLPolicyListCommand) AutocompleteFlags() complete.Flags {
    38  	return mergeAutocompleteFlags(c.Meta.AutocompleteFlags(FlagSetClient),
    39  		complete.Flags{
    40  			"-json": complete.PredictNothing,
    41  			"-t":    complete.PredictAnything,
    42  		})
    43  }
    44  
    45  func (c *ACLPolicyListCommand) AutocompleteArgs() complete.Predictor {
    46  	return complete.PredictNothing
    47  }
    48  
    49  func (c *ACLPolicyListCommand) Synopsis() string {
    50  	return "List ACL policies"
    51  }
    52  
    53  func (c *ACLPolicyListCommand) Run(args []string) int {
    54  	var json bool
    55  	var tmpl string
    56  
    57  	flags := c.Meta.FlagSet("acl policy list", FlagSetClient)
    58  	flags.Usage = func() { c.Ui.Output(c.Help()) }
    59  	flags.BoolVar(&json, "json", false, "")
    60  	flags.StringVar(&tmpl, "t", "", "")
    61  
    62  	if err := flags.Parse(args); err != nil {
    63  		return 1
    64  	}
    65  
    66  	// Check that we got no arguments
    67  	args = flags.Args()
    68  	if l := len(args); l != 0 {
    69  		c.Ui.Error(c.Help())
    70  		return 1
    71  	}
    72  
    73  	// Get the HTTP client
    74  	client, err := c.Meta.Client()
    75  	if err != nil {
    76  		c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
    77  		return 1
    78  	}
    79  
    80  	// Fetch info on the policy
    81  	policies, _, err := client.ACLPolicies().List(nil)
    82  	if err != nil {
    83  		c.Ui.Error(fmt.Sprintf("Error listing ACL policies: %s", err))
    84  		return 1
    85  	}
    86  
    87  	if json || len(tmpl) > 0 {
    88  		out, err := Format(json, tmpl, policies)
    89  		if err != nil {
    90  			c.Ui.Error(err.Error())
    91  			return 1
    92  		}
    93  
    94  		c.Ui.Output(out)
    95  		return 0
    96  	}
    97  
    98  	c.Ui.Output(formatPolicies(policies))
    99  	return 0
   100  }
   101  
   102  func formatPolicies(policies []*api.ACLPolicyListStub) string {
   103  	if len(policies) == 0 {
   104  		return "No policies found"
   105  	}
   106  
   107  	output := make([]string, 0, len(policies)+1)
   108  	output = append(output, fmt.Sprintf("Name|Description"))
   109  	for _, p := range policies {
   110  		output = append(output, fmt.Sprintf("%s|%s", p.Name, p.Description))
   111  	}
   112  
   113  	return formatList(output)
   114  }