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cli.go
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cli.go
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package main
import (
"errors"
"flag"
"fmt"
"net/http"
"os"
)
type WorkSpaceCommand struct {
fs *flag.FlagSet
}
func NewWorkSpaceCommand() *WorkSpaceCommand {
wsc := WorkSpaceCommand{
fs: flag.NewFlagSet("workspace", flag.ContinueOnError),
}
return &wsc
}
func (wsc *WorkSpaceCommand) Init(args []string) error {
return wsc.fs.Parse(args)
}
func (wsc *WorkSpaceCommand) Name() string {
return wsc.fs.Name()
}
func (wsc *WorkSpaceCommand) Run(db *DataBase) error {
if len(os.Args) <= 2 {
printUsage()
return errors.New("workspace command requires subcommand")
}
subCmds := []Runner{
NewWsNewCommand(),
NewWsDelCommand(),
NewWsListCommand(),
NewWsOpenCommand(),
NewWsSaveCommand(),
NewWsUpdateCommand(),
NewWsDeleteCommand(),
}
for _, cmd := range subCmds {
if cmd.Name() == os.Args[2] {
cmd.Init(os.Args[3:])
return cmd.Run(db)
}
}
return fmt.Errorf("unknown command %s", os.Args[2])
}
type HelpCommand struct {
fs *flag.FlagSet
}
func NewHelpCommand() *HelpCommand {
h := HelpCommand{
fs: flag.NewFlagSet("help", flag.ContinueOnError),
}
return &h
}
func (h *HelpCommand) Init(args []string) error {
return h.fs.Parse(args)
}
func (h *HelpCommand) Name() string {
return h.fs.Name()
}
func (h *HelpCommand) Run(db *DataBase) error {
printUsage()
return nil
}
// workspace new ...
type WsNewCommand struct {
fs *flag.FlagSet
name string
}
func NewWsNewCommand() *WsNewCommand {
new := WsNewCommand{
fs: flag.NewFlagSet("new", flag.ContinueOnError),
}
new.fs.StringVar(&new.name, "name", "", "The name of the workspace")
return &new
}
func (new *WsNewCommand) Name() string {
return new.fs.Name()
}
func (new *WsNewCommand) Init(args []string) error {
return new.fs.Parse(args)
}
func (new *WsNewCommand) Run(db *DataBase) error {
if new.name == "" {
printUsage()
return errors.New("workspace name is required")
}
if err := db.CreateWorkSpace(new.name); err != nil {
return err
}
if err := SaveToDB(db); err != nil {
return errors.New("save workspaces error: " + err.Error())
}
fmt.Printf("workspace %s created successfully \n", new.name)
return nil
}
// workspace del ...
type WsDelCommand struct {
fs *flag.FlagSet
name string
}
func NewWsDelCommand() *WsDelCommand {
del := WsDelCommand{
fs: flag.NewFlagSet("del", flag.ContinueOnError),
}
del.fs.StringVar(&del.name, "name", "", "The name of the workspace")
return &del
}
func (del *WsDelCommand) Name() string {
return del.fs.Name()
}
func (del *WsDelCommand) Init(args []string) error {
return del.fs.Parse(args)
}
func (del *WsDelCommand) Run(db *DataBase) error {
if del.name == "" {
printUsage()
return errors.New("workspace name is required")
}
if err := db.DeleteWorkSpace(del.name); err != nil {
return err
}
if err := SaveToDB(db); err != nil {
return errors.New("save workspaces error: " + err.Error())
}
fmt.Printf("workspace %s deleted successfully", del.name)
return nil
}
// workspace list ...
type WsListCommand struct {
fs *flag.FlagSet
}
func NewWsListCommand() *WsListCommand {
list := WsListCommand{
fs: flag.NewFlagSet("list", flag.ContinueOnError),
}
return &list
}
func (list *WsListCommand) Name() string {
return list.fs.Name()
}
func (list *WsListCommand) Init(args []string) error {
return list.fs.Parse(args)
}
func (list *WsListCommand) Run(db *DataBase) error {
fmt.Println("workspaces:", db.ListWorkSpaces())
return nil
}
// workspace open ...
type WsOpenCommand struct {
fs *flag.FlagSet
}
func NewWsOpenCommand() *WsOpenCommand {
open := WsOpenCommand{
fs: flag.NewFlagSet("open", flag.ContinueOnError),
}
return &open
}
func (open *WsOpenCommand) Name() string {
return open.fs.Name()
}
func (open *WsOpenCommand) Init(args []string) error {
return open.fs.Parse(args)
}
func (open *WsOpenCommand) Run(db *DataBase) error {
html, err := generateHtmlPage(db)
if err != nil {
return err
}
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/html")
w.Write([]byte(html))
})
http.ListenAndServe(":8080", nil)
return nil
}
// workspace save ...
type WsSaveCommand struct {
fs *flag.FlagSet
workspace string
contract string
address string
note string
}
func NewWsSaveCommand() *WsSaveCommand {
save := WsSaveCommand{
fs: flag.NewFlagSet("save", flag.ContinueOnError),
}
save.fs.StringVar(&save.workspace, "workspace", "", "The name of the workspace")
save.fs.StringVar(&save.contract, "contract", "", "The name of the contract")
save.fs.StringVar(&save.address, "address", "", "The address of the contract")
save.fs.StringVar(&save.note, "note", "", "The extra information of the contract")
return &save
}
func (save *WsSaveCommand) Name() string {
return save.fs.Name()
}
func (save *WsSaveCommand) Init(args []string) error {
return save.fs.Parse(args)
}
func (save *WsSaveCommand) Run(db *DataBase) error {
if err := db.Save(save.workspace, save.contract, save.address, save.note); err != nil {
return err
}
if err := SaveToDB(db); err != nil {
return errors.New("save workspaces error: " + err.Error())
}
fmt.Printf("The contract information [%s -> %s] has been saved successfully. \n", save.contract, save.address)
return nil
}
// workspace update ...
type WsUpdateCommand struct {
fs *flag.FlagSet
workspace string
contract string
address string
note string
}
func NewWsUpdateCommand() *WsUpdateCommand {
update := WsUpdateCommand{
fs: flag.NewFlagSet("update", flag.ContinueOnError),
}
update.fs.StringVar(&update.workspace, "workspace", "", "The name of the workspace")
update.fs.StringVar(&update.contract, "contract", "", "The name of the contract")
update.fs.StringVar(&update.address, "address", "", "The address of the contract")
update.fs.StringVar(&update.note, "note", "", "The extra information of the contract")
return &update
}
func (update *WsUpdateCommand) Name() string {
return update.fs.Name()
}
func (update *WsUpdateCommand) Init(args []string) error {
return update.fs.Parse(args)
}
func (update *WsUpdateCommand) Run(db *DataBase) error {
if err := db.Update(update.workspace, update.contract, update.address, update.note); err != nil {
return err
}
if err := SaveToDB(db); err != nil {
return errors.New("save workspaces error: " + err.Error())
}
fmt.Printf("The contract information [%s] has been updated successfully. \n", update.contract)
return nil
}
// workspace delete ...
type WsDeleteCommand struct {
fs *flag.FlagSet
workspace string
contract string
}
func NewWsDeleteCommand() *WsDeleteCommand {
delete := WsDeleteCommand{
fs: flag.NewFlagSet("delete", flag.ContinueOnError),
}
delete.fs.StringVar(&delete.workspace, "workspace", "", "The name of the workspace")
delete.fs.StringVar(&delete.contract, "contract", "", "The name of the contract")
return &delete
}
func (delete *WsDeleteCommand) Name() string {
return delete.fs.Name()
}
func (delete *WsDeleteCommand) Init(args []string) error {
return delete.fs.Parse(args)
}
func (delete *WsDeleteCommand) Run(db *DataBase) error {
if err := db.Delete(delete.workspace, delete.contract); err != nil {
return err
}
if err := SaveToDB(db); err != nil {
return errors.New("save workspaces error: " + err.Error())
}
fmt.Printf("The contract information [%s] has been deleted successfully.", delete.contract)
return nil
}
type Runner interface {
Init([]string) error
Run(*DataBase) error
Name() string
}
func printUsage() {
fmt.Println("Usage:")
fmt.Println(" workspace new --name <name>, Create a new workspace.")
fmt.Println(" workspace del --name <name>, Delete a new workspace.")
fmt.Println(" workspace list, List the workspaces managed by the current user.")
fmt.Println(" workspace open, Open the workspace with the default browser at http://127.0.0.1:8080.")
fmt.Println(" workspace save --workspace <workspace> --contract <name> --address <addr>, --note <something>, Save the contract address into the workspace.")
fmt.Println(" workspace update --workspace <workspace> --contract <name> --address <addr>, --note <something>, Update the contract address in the specified workspace.")
fmt.Println(" workspace delete --workspace <workspace> --contract <name> --address <addr>, --note <something>, Update the contract address in the specified workspace.")
}
func run(args []string) error {
cmds := []Runner{
NewWorkSpaceCommand(),
NewHelpCommand(),
}
db := DataBase{}
if err := LoadDB(&db); err != nil {
return errors.New("load workspaces error: " + err.Error())
}
for _, cmd := range cmds {
if cmd.Name() == args[0] {
cmd.Init(os.Args[2:])
return cmd.Run(&db)
}
}
printUsage()
return fmt.Errorf("unknown command %s", os.Args[1])
}