/
osc.go
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/
osc.go
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// osc.go - roscoe command line
package main
import (
"errors"
"fmt"
"log"
"os"
"reflect"
"github.com/voxelbrain/goptions"
"roscoe/client"
"roscoe/flavor"
// "roscoe/osclib"
"roscoe/server"
)
const (
Version = "0.1"
)
type CmdFunc func(c *client.Client, opts interface{}) error
var ListCmds map[string]CmdFunc = map[string]CmdFunc{
"flavors": DoListFlavors,
"servers": DoListServers,
}
var ShowCmds map[string]CmdFunc = map[string]CmdFunc{
// "flavor": DoShowFlavor,
"server": DoShowServer,
}
func getField(opts interface{}, name string) (r reflect.Value) {
v := reflect.ValueOf(opts).Elem()
if v.Kind() == reflect.Struct {
r = v.FieldByName(name)
return r
}
return r
}
func DoListFlavors(c *client.Client, opts interface{}) error {
if getField(opts, "All").Bool() {
fmt.Printf("all\n")
}
flavors, err := flavor.List(c, "")
if err != nil {
log.Fatal(err)
}
fmt.Printf("flavors: %+v\n", flavors)
for k, v := range flavors.Flavors {
fmt.Printf("%d: %s\n", k, v.Id)
}
return nil
}
func DoListServers(c *client.Client, opts interface{}) error {
if getField(opts, "Servers").FieldByName("All").Bool() {
fmt.Printf("all\n")
}
servers, err := server.List(c, "")
fmt.Printf("c: %+v\n\n", *servers)
return err
}
/*
func DoShowFlavor(c *client.Client, args []string, opts interface{}) error {
x := getField(opts, "Flavor").FieldByName("F")
fmt.Printf("DoShowFlavor: %+v\n", x)
attr := make(flavor.Attr)
attr["name"] = args[1]
flavors, err := flavor.Show(c, attr)
if err != nil {
fmt.Print("Error: ", err, "\n")
} else {
fmt.Printf("flavors: %+v\n\n", flavors.Flavors[0].A)
}
return err
}
*/
func DoShowServer(c *client.Client, opts interface{}) error {
// if getField(opts, "Servers").FieldByName("All").Bool() {
// fmt.Printf("all\n")
// }
attr := make(server.Attr)
attr["name"] = "npd01"
servers, err := server.Show(c, attr)
if err != nil {
fmt.Print("Error: ", err, "\n")
} else {
fmt.Printf("c: %+v\n\n", *servers)
}
return err
}
// Display the usage message and exit
func Usage() {
goptions.PrintHelp()
os.Exit(1)
}
// Simple helper to set an environment var as default
func SetEnvOpt(env string, opt string) (res string) {
res = os.Getenv(env)
if opt != "" {
res = opt
}
return res
}
// Extract auth credentials from command line and environment
func GetAuthCreds(opts OptType) (creds client.Credentials, err error) {
creds.AuthUrl = SetEnvOpt("OS_AUTH_URL", opts.AuthUrl)
if creds.AuthUrl == "" {
err = errors.New("OS_AUTH_URL not found")
}
creds.OSAuth.TenantName = SetEnvOpt("OS_TENANT_NAME", opts.Tenant)
if creds.OSAuth.TenantName == "" {
err = errors.New("OS_TENANT_NAME not found")
}
creds.OSAuth.PasswordCredentials.Username = SetEnvOpt("OS_USERNAME", opts.Username)
if creds.OSAuth.PasswordCredentials.Username == "" {
err = errors.New("OS_USERNAME not found")
}
creds.OSAuth.PasswordCredentials.Password = SetEnvOpt("OS_PASSWORD", opts.Password)
if creds.OSAuth.PasswordCredentials.Password == "" {
// if password == "" here go look in keyring?
}
return
}
type OptType struct {
// TODO(dtroyer): Fix help strings to reflect required args
Tenant string `goptions:"--os-tenant, description='Tenant name'"`
Username string `goptions:"--os-username, description='Username'"`
Password string `goptions:"--os-password, description='Password'"`
AuthUrl string `goptions:"--os-auth-url, description='Authentication URL'"`
Debug bool `goptions:"-x, --debug, description='Enable debugging'"`
Help bool `goptions:"-h, --help, description='Display this help messahe'"`
Verbose bool `goptions:"-v, --verbose, description='Be not quiet with output'"`
goptions.Verbs
ListFlavors struct {
All bool `goptions:"--all, description='List all flavors'"`
} `goptions:"listflavors"`
ListServers struct {
All bool `goptions:"--all, description='List all servers'"`
} `goptions:"listservers"`
Show struct {
goptions.Verbs
Flavor struct {
F string // `goptions:"--qaz"`
} `goptions:"flavor"`
Server struct {
S string //`goptions:"-s, --server, description='Server to connect to'"`
} `goptions:"server"`
} `goptions:"show"`
Version struct {
Identity bool `goptions:"--identity, mutexgroup='apiver', description='Show Identity API version'"`
} `goptions:"version"`
}
func main() {
var options OptType = OptType{
Debug: false,
Verbose: false,
}
goptions.Parse(&options)
// Propagate debug setting to packages
client.Debug = &options.Debug
if len(os.Args) <= 1 || options.Help {
Usage()
}
// Get our credentials
creds, err := GetAuthCreds(options)
if err != nil {
log.Fatal(err)
}
// Make a new client with these creds
c, err := client.NewClient(creds, nil)
if err != nil {
log.Fatal(err)
}
if options.Debug {
fmt.Printf("token: %s\n", c.Token)
fmt.Printf("servcat: %s\n", c.ServCat)
}
fmt.Printf("verbs: %+v\n", options.Verbs)
// fmt.Printf("obj: %+v\n", options.Show.Verbs)
switch options.Verbs {
case "listflavors":
fmt.Print("Args: ", os.Args[1:], "\n")
if len(os.Args) > 1 {
if f, ok := ListCmds["flavors"]; ok {
err = f(c, &options.ListFlavors)
} else {
fmt.Printf("Unknown command: %s %s\n", options.Verbs, os.Args[1])
fmt.Print("Args: ", os.Args[1:], "\n")
}
} else {
Usage()
}
os.Exit(0)
case "listservers":
if len(os.Args) > 2 {
if f, ok := ListCmds["servers"]; ok {
err = f(c, &options.ListServers)
} else {
fmt.Printf("Unknown command: %s %s\n", options.Verbs, os.Args[3])
fmt.Print("Args: ", os.Args[1:], "\n")
}
} else {
Usage()
}
os.Exit(0)
case "show":
if len(os.Args) > 2 {
if f, ok := ShowCmds[string(options.Show.Verbs)]; ok {
err = f(c, &options.Show)
} else {
fmt.Printf("Unknown command: %s %s\n", options.Verbs, os.Args[3])
fmt.Print("Args: ", os.Args[1:], "\n")
}
} else {
Usage()
}
os.Exit(0)
case "version":
if options.Version.Identity {
// Identity API versions
// osclib.GetVersions(c.Auth)
os.Exit(0)
} else {
fmt.Printf("Version: %s\n", Version)
os.Exit(0)
}
default:
fmt.Printf("Unknown verb: %s\n", options.Verbs)
Usage()
}
// attr := make(server.Attr)
// attr["name"] = "npd01"
// servers, err := server.Show(c, attr)
// if err != nil {
// log.Fatal(err)
// }
// fmt.Printf("c: %+v\n\n", *servers)
}