mirror of
https://github.com/go-micro/go-micro.git
synced 2025-03-29 20:39:48 +02:00
Use internal runtime package for gomu run (#2248)
This change refactors the `gomu run` command to use Go Micro's internal runtime package in order to run services. Not only does this clean up duplicate functionality between Go Micro and Gomu, but also adds the feature to Gomu to run remote projects. For example, the following command pulls in a remote project and runs it locally. ```bash gomu run github.com/auditemarlow/helloworld ``` The `gomu run` command remains backwards compatible. By invoking `gomu run` in a Go Micro project directory, Gomu will simply run that project.
This commit is contained in:
Niek den Breeje
GitHub
parent
270d910b73
commit
a58b8883f8
cmd/gomu
@ -5,17 +5,40 @@ import (
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"os"
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"os/signal"
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"path/filepath"
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"time"
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"strings"
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"github.com/asim/go-micro/cmd/gomu/cmd"
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"github.com/asim/go-micro/v3/runtime"
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"github.com/asim/go-micro/v3/runtime/local/git"
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"github.com/fsnotify/fsnotify"
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"github.com/urfave/cli/v2"
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)
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var (
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DefaultRetries = 3
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flags []cli.Flag = []cli.Flag{
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&cli.StringFlag{
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Name: "command",
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Usage: "command to execute",
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},
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&cli.StringFlag{
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Name: "args",
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Usage: "command arguments",
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},
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&cli.StringFlag{
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Name: "type",
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Usage: "the type of service to operate on",
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},
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}
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)
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// NewCommand returns a new run command.
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func NewCommand() *cli.Command {
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return &cli.Command{
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Name: "run",
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Usage: "Build and run a service continuously",
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Usage: "Build and run a service continuously, e.g. gomu run [github.com/auditemarlow/helloworld]",
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Flags: flags,
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Action: Run,
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}
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}
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@ -23,76 +46,114 @@ func NewCommand() *cli.Command {
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// Run runs a service and watches the project directory for change events. On
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// write, the service is restarted. Exits on error.
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func Run(ctx *cli.Context) error {
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service := newService()
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if err := service.Start(); err != nil {
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wd, err := os.Getwd()
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if err != nil {
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return err
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}
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defer service.Stop()
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sig := make(chan os.Signal)
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done := make(chan bool)
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signal.Notify(sig, os.Interrupt)
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go func() {
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<-sig
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service.Stop()
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done <- true
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}()
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go func() {
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for {
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service.Wait()
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fmt.Println("Service has stopped, restarting service")
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service.Start()
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time.Sleep(time.Second)
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}
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}()
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watcher, err := fsnotify.NewWatcher()
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source, err := git.ParseSourceLocal(wd, ctx.Args().First())
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if err != nil {
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fmt.Println(err)
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return err
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}
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defer watcher.Close()
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go func() {
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for {
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select {
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case event, ok := <-watcher.Events:
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if !ok {
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return
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svc := &runtime.Service{
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Name: source.RuntimeName(),
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Source: source.RuntimeSource(),
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Version: source.Ref,
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Metadata: make(map[string]string),
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}
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typ := ctx.String("type")
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command := strings.TrimSpace(ctx.String("command"))
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args := strings.TrimSpace(ctx.String("args"))
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r := *cmd.DefaultCmd.Options().Runtime
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var retries = DefaultRetries
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if ctx.IsSet("retries") {
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retries = ctx.Int("retries")
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}
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opts := []runtime.CreateOption{
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runtime.WithOutput(os.Stdout),
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runtime.WithRetries(retries),
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runtime.CreateType(typ),
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}
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if len(command) > 0 {
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opts = append(opts, runtime.WithCommand(command))
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}
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if len(args) > 0 {
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opts = append(opts, runtime.WithArgs(args))
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}
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if err := r.Create(svc, opts...); err != nil {
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return err
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}
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done := make(chan bool)
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if r.String() == "local" {
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sig := make(chan os.Signal)
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signal.Notify(sig, os.Interrupt)
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go func() {
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<-sig
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r.Delete(svc)
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done <- true
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}()
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}
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if source.Local {
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watcher, err := fsnotify.NewWatcher()
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if err != nil {
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fmt.Println(err)
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}
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defer watcher.Close()
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go func() {
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for {
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select {
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case event, ok := <-watcher.Events:
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if !ok {
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return
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}
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if event.Op&fsnotify.Write == fsnotify.Write {
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r.Update(svc)
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}
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if event.Op&fsnotify.Create == fsnotify.Create {
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watcher.Add(event.Name)
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}
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if event.Op&fsnotify.Remove == fsnotify.Remove {
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watcher.Remove(event.Name)
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}
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case err, ok := <-watcher.Errors:
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if !ok {
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return
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}
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fmt.Println("ERROR", err)
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}
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if event.Op&fsnotify.Write == fsnotify.Write {
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service.Stop()
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}
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if event.Op&fsnotify.Create == fsnotify.Create {
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watcher.Add(event.Name)
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}
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if event.Op&fsnotify.Remove == fsnotify.Remove {
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watcher.Remove(event.Name)
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}
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case err, ok := <-watcher.Errors:
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if !ok {
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return
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}
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fmt.Println("ERROR", err)
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}
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}()
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var files []string
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filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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files = append(files, path)
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return nil
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})
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for _, file := range files {
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if err := watcher.Add(file); err != nil {
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return err
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}
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}
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}()
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var files []string
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filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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files = append(files, path)
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return nil
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})
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for _, file := range files {
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if err := watcher.Add(file); err != nil {
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return err
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}
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}
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<-done
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if r.String() == "local" {
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<-done
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}
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return nil
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}
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@ -1,62 +0,0 @@
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// +build !windows
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package run
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import (
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"os"
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"os/exec"
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"syscall"
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)
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// Service is the interface that wraps the service that should run.
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//
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// Start starts the service and exits on error.
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//
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// Stop stops the service and exits on error.
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//
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// Wait waits for the service to exit and exits on error.
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type Service interface {
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Start() error
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Stop() error
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Wait() error
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}
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type service struct {
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cmd *exec.Cmd
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running bool
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}
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// Start starts the service and exits on error.
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func (s *service) Start() error {
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if s.running {
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return nil
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}
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s.cmd = exec.Command("go", "run", ".")
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s.cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
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s.cmd.Stdout = os.Stdout
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s.cmd.Stderr = os.Stderr
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s.running = true
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return s.cmd.Start()
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}
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// Stop stops the service and exits on error.
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func (s *service) Stop() error {
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if !s.running {
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return nil
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}
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s.running = false
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return syscall.Kill(-s.cmd.Process.Pid, syscall.SIGTERM)
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}
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// Wait waits for the service to exit and exits on error.
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func (s *service) Wait() error {
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return s.cmd.Wait()
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}
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func newService() *service {
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service := new(service)
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return service
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}
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@ -1,66 +0,0 @@
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// +build windows
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package run
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import (
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"os"
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"os/exec"
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"syscall"
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)
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// Service is the interface that wraps the service that should run.
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//
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// Start starts the service and exits on error.
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//
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// Stop stops the service and exits on error.
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//
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// Wait waits for the service to exit and exits on error.
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type Service interface {
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Start() error
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Stop() error
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Wait() error
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}
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type service struct {
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cmd *exec.Cmd
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running bool
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}
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// Start starts the service and exits on error.
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func (s *service) Start() error {
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if s.running {
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return nil
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}
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s.cmd = exec.Command("go", "run", ".")
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s.cmd.SysProcAttr = &syscall.SysProcAttr{}
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s.cmd.Stdout = os.Stdout
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s.cmd.Stderr = os.Stderr
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s.running = true
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return s.cmd.Start()
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}
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// Stop stops the service and exits on error.
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func (s *service) Stop() error {
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if !s.running {
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return nil
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}
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s.running = false
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pro, err := os.FindProcess(s.cmd.Process.Pid)
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if err != nil {
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return err
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}
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return pro.Signal(syscall.SIGTERM)
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}
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// Wait waits for the service to exit and exits on error.
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func (s *service) Wait() error {
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return s.cmd.Wait()
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}
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func newService() *service {
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service := new(service)
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return service
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}
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@ -71,8 +71,6 @@ github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmV
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github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
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github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
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github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
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github.com/asim/go-micro/v3 v3.6.0 h1:I6UVJBpBtWNKCjWf0dRpZznRCW9TR4DXjV4wieyGhK0=
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github.com/asim/go-micro/v3 v3.6.0/go.mod h1:cNGIIYQcp0qy+taNYmrBdaIHeqMWHV5ZH/FfQzfOyE8=
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github.com/asim/go-micro/v3 v3.6.1-0.20210831082736-088ccb50019c h1:bwjwOyCBbClb9BwnVo8XohDYzA3Huk/PVpxSfqrx3xg=
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github.com/asim/go-micro/v3 v3.6.1-0.20210831082736-088ccb50019c/go.mod h1:UQd2JfP/+4goQxddksr2r6ZSaUXNIlVE8hlepbAx/DI=
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github.com/aws/aws-sdk-go v1.37.27/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
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@ -346,8 +344,6 @@ github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m
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github.com/mattn/go-tty v0.0.0-20180219170247-931426f7535a/go.mod h1:XPvLUNfbS4fJH25nqRHfWLMa1ONC8Amw+mIA639KxkE=
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github.com/mattn/go-tty v0.0.3/go.mod h1:ihxohKRERHTVzN+aSVRwACLCeqIoZAWpoICkkvrWyR0=
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github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
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github.com/micro/cli/v2 v2.1.2 h1:43J1lChg/rZCC1rvdqZNFSQDrGT7qfMrtp6/ztpIkEM=
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github.com/micro/cli/v2 v2.1.2/go.mod h1:EguNh6DAoWKm9nmk+k/Rg0H3lQnDxqzu5x5srOtGtYg=
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github.com/miekg/dns v1.0.14/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
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github.com/miekg/dns v1.1.40/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
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github.com/miekg/dns v1.1.43 h1:JKfpVSCB84vrAmHzyrsxB5NAr5kLoMXZArPSw7Qlgyg=
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