forked from cloudfoundry-community/cf-plugin-open
/
open.go
162 lines (143 loc) · 3.88 KB
/
open.go
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package main
import (
"encoding/json"
"errors"
"fmt"
"os"
"strings"
"io"
"github.com/cloudfoundry/cli/plugin"
"github.com/skratchdot/open-golang/open"
)
type serviceInstanceResponse struct {
Entity serviceInstance `json:"entity"`
}
type serviceInstance struct {
DashboardURL string `json:"dashboard_url"`
}
func main() {
plugin.Start(&OpenPlugin{})
}
// OpenPlugin empty struct for plugin
type OpenPlugin struct{}
// Run of seeder plugin
func (plugin OpenPlugin) Run(cliConnection plugin.CliConnection, args []string) {
err := checkArgs(cliConnection, args)
if err != nil {
os.Exit(1)
}
if args[0] == "open" {
plugin.runAppOpen(cliConnection, args)
} else if args[0] == "service-open" {
plugin.runServiceOpen(cliConnection, args)
}
}
// GetMetadata of plugin
func (OpenPlugin) GetMetadata() plugin.PluginMetadata {
return plugin.PluginMetadata{
Name: "open",
Version: plugin.VersionType{Major: 1, Minor: 1, Build: 0},
Commands: []plugin.Command{
{
Name: "open",
HelpText: "open app url in browser",
UsageDetails: plugin.Usage{
Usage: "open <appname>",
},
},
{
Name: "service-open",
HelpText: "open service instance dashboard in browser",
UsageDetails: plugin.Usage{
Usage: "service-open <servicename>",
},
},
},
}
}
func (plugin OpenPlugin) runAppOpen(cliConnection plugin.CliConnection, args []string) {
output, err := cliConnection.CliCommandWithoutTerminalOutput("app", args[1])
if err != nil {
fmt.Fprintln(os.Stdout, "error: app does not exist")
os.Exit(1)
}
url, err := getUrlFromOutput(output)
if err != nil {
fmt.Fprintln(os.Stdout, "error: ", err)
os.Exit(1)
}
open.Run(multiRoutesMenu(os.Stdin, url))
}
func getUrlFromOutput(output []string) ([]string, error) {
urls := []string{}
for _, line := range output {
splitLine := strings.Split(strings.TrimSpace(line), " ")
if splitLine[0] == "urls:" {
if len(splitLine) > 1 {
for p := 1; p < len(splitLine); p++ {
url := "http://" + strings.Trim(splitLine[p], ",")
url = strings.TrimSpace(url)
urls = append(urls, url)
}
} else if len(splitLine) == 1 {
return []string{""}, errors.New("App has no route")
}
}
}
return urls, nil
}
func multiRoutesMenu(input io.Reader, urls []string) string {
if len(urls) == 1 {
return urls[0]
} else {
var choice int
fmt.Println("Multiple routes detected. Please choose one: ")
for u := 0; u < len(urls); u++ {
fmt.Printf("%d - %s\n", u+1, urls[u])
}
fmt.Print("Enter route to open: ")
fmt.Fscanf(input, "%d", &choice)
for !(choice >= 1 && choice <= len(urls)) {
fmt.Printf("Please enter valid number(1 to %d): ", len(urls))
fmt.Fscanf(input, "%d", &choice)
}
return urls[choice-1]
}
}
func (plugin OpenPlugin) runServiceOpen(cliConnection plugin.CliConnection, args []string) {
output, err := cliConnection.CliCommandWithoutTerminalOutput("service", args[1], "--guid")
if err != nil {
fmt.Fprintln(os.Stdout, "error: service does not exist")
os.Exit(1)
}
serviceInstanceGUID := strings.TrimSpace(output[0])
output, err = cliConnection.CliCommandWithoutTerminalOutput("curl", fmt.Sprintf("/v2/service_instances/%s", serviceInstanceGUID))
if err != nil {
fmt.Fprintln(os.Stdout, "error: service does not exist")
os.Exit(1)
}
jsonStr := ""
for _, line := range output {
jsonStr += line + "\n"
}
response := serviceInstanceResponse{}
json.Unmarshal([]byte(jsonStr), &response)
url := response.Entity.DashboardURL
if url == "" {
fmt.Println("No dashboard available")
} else {
open.Run(url)
}
}
func checkArgs(cliConnection plugin.CliConnection, args []string) error {
if len(args) < 2 {
if args[0] == "open" {
cliConnection.CliCommand(args[0], "-h")
return errors.New("Appname is needed")
} else if args[0] == "service-open" {
cliConnection.CliCommand(args[0], "-h")
return errors.New("Appname is needed")
}
}
return nil
}