Use 'docker compose' by default

We now fall back to 'docker-compose' if need be

README.md

@@ -296,12 +296,6 @@ By default we only show logs from the last hour, so that we're not putting too m
 
 If you are running lazydocker in Docker container, it is a know bug, that you can't see logs or CPU usage.
 
-### Why isn't my docker-compose environment being used?
-
-By default Compose V1 (`docker-compose` with the hyphen) is used as the docker-compose command. You will need to make sure you have the `docker-compose` command available for lazydocker to be able to use.
-
-If you use Compose V2 (`docker compose` without the hyphen), alternatively, you can change the docker-compose command used via the `commandTemplates.dockerCompose` config value.
-
 ## Alternatives
 
 - [docui](https://github.com/skanehira/docui) - Skanehira beat me to the punch on making a docker terminal UI, so definitely check out that repo as well! I think the two repos can live in harmony though: lazydocker is more about managing existing containers/services, and docui is more about creating and configuring them.

docs/Config.md

@@ -65,7 +65,7 @@ logs:
   since: '60m' # set to '' to show all logs
   tail: '' # set to 200 to show last 200 lines of logs
 commandTemplates:
-  dockerCompose: docker-compose # Determines the Docker Compose command to run, referred to as .DockerCompose in commandTemplates
+  dockerCompose: docker compose # Determines the Docker Compose command to run, referred to as .DockerCompose in commandTemplates
   restartService: '{{ .DockerCompose }} restart {{ .Service.Name }}'
   up:  '{{ .DockerCompose }} up -d'
   down: '{{ .DockerCompose }} down'

pkg/commands/docker.go

@@ -113,12 +113,7 @@ func NewDockerCommand(log *logrus.Entry, osCommand *OSCommand, tr *i18n.Translat
 		Closers:                []io.Closer{tunnelCloser},
 	}
 
-	command := utils.ApplyTemplate(
-		config.UserConfig.CommandTemplates.CheckDockerComposeConfig,
-		dockerCommand.NewCommandObject(CommandObject{}),
-	)
-
-	log.Warn(command)
+	dockerCommand.setDockerComposeCommand(config)
 
 	err = osCommand.RunCommand(
 		utils.ApplyTemplate(
@@ -134,6 +129,18 @@ func NewDockerCommand(log *logrus.Entry, osCommand *OSCommand, tr *i18n.Translat
 	return dockerCommand, nil
 }
 
+func (c *DockerCommand) setDockerComposeCommand(config *config.AppConfig) {
+	if config.UserConfig.CommandTemplates.DockerCompose != "docker compose" {
+		return
+	}
+
+	// it's possible that a user is still using docker-compose, so we'll check if 'docker comopose' is available, and if not, we'll fall back to 'docker-compose'
+	err := c.OSCommand.RunCommand("docker compose version")
+	if err != nil {
+		config.UserConfig.CommandTemplates.DockerCompose = "docker-compose"
+	}
+}
+
 func (c *DockerCommand) Close() error {
 	return utils.CloseMany(c.Closers)
 }

pkg/config/app_config.go

@@ -168,7 +168,7 @@ type CommandTemplatesConfig struct {
 
 	// DockerCompose is for your docker-compose command. You may want to combine a
 	// few different docker-compose.yml files together, in which case you can set
-	// this to "docker-compose -f foo/docker-compose.yml -f
+	// this to "docker compose -f foo/docker-compose.yml -f
 	// bah/docker-compose.yml". The reason that the other docker-compose command
 	// templates all start with {{ .DockerCompose }} is so that they can make use
 	// of whatever you've set in this value rather than you having to copy and
@@ -200,7 +200,7 @@ type CommandTemplatesConfig struct {
 	// and ensure they're running before trying to run the service at hand
 	RecreateService string `yaml:"recreateService,omitempty"`
 
-	// AllLogs is for showing what you get from doing `docker-compose logs`. It
+	// AllLogs is for showing what you get from doing `docker compose logs`. It
 	// combines all the logs together
 	AllLogs string `yaml:"allLogs,omitempty"`
 
@@ -385,7 +385,7 @@ func GetDefaultConfig() UserConfig {
 			Tail:       "",
 		},
 		CommandTemplates: CommandTemplatesConfig{
-			DockerCompose:            "docker-compose",
+			DockerCompose:            "docker compose",
 			RestartService:           "{{ .DockerCompose }} restart {{ .Service.Name }}",
 			StartService:             "{{ .DockerCompose }} start {{ .Service.Name }}",
 			Up:                       "{{ .DockerCompose }} up -d",
@@ -502,7 +502,7 @@ func NewAppConfig(name, version, commit, date string, buildSource string, debugg
 		return nil, err
 	}
 
-	// Pass compose files as individual -f flags to docker-compose
+	// Pass compose files as individual -f flags to docker compose
 	if len(composeFiles) > 0 {
 		userConfig.CommandTemplates.DockerCompose += " -f " + strings.Join(composeFiles, " -f ")
 	}

pkg/config/app_config_test.go

@@ -15,7 +15,7 @@ func TestDockerComposeCommandNoFiles(t *testing.T) {
 	}
 
 	actual := conf.UserConfig.CommandTemplates.DockerCompose
-	expected := "docker-compose"
+	expected := "docker compose"
 	if actual != expected {
 		t.Fatalf("Expected %s but got %s", expected, actual)
 	}
@@ -29,7 +29,7 @@ func TestDockerComposeCommandSingleFile(t *testing.T) {
 	}
 
 	actual := conf.UserConfig.CommandTemplates.DockerCompose
-	expected := "docker-compose -f one.yml"
+	expected := "docker compose -f one.yml"
 	if actual != expected {
 		t.Fatalf("Expected %s but got %s", expected, actual)
 	}
@@ -43,7 +43,7 @@ func TestDockerComposeCommandMultipleFiles(t *testing.T) {
 	}
 
 	actual := conf.UserConfig.CommandTemplates.DockerCompose
-	expected := "docker-compose -f one.yml -f two.yml -f three.yml"
+	expected := "docker compose -f one.yml -f two.yml -f three.yml"
 	if actual != expected {
 		t.Fatalf("Expected %s but got %s", expected, actual)
 	}