From c9b6fd62a05d3bcdd543f39eac0a95e08cc6f8c8 Mon Sep 17 00:00:00 2001
From: AJ ONeal <coolaj86@gmail.com>
Date: Thu, 27 Jun 2019 03:46:02 -0600
Subject: [PATCH] WIP tested linux system installer

---
 .../dist/etc/systemd/system/_name_.service.tmpl   | 11 +++++------
 cmd/watchdog/installer/install_linux.go           | 15 +++++++++++++--
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/cmd/watchdog/installer/dist/etc/systemd/system/_name_.service.tmpl b/cmd/watchdog/installer/dist/etc/systemd/system/_name_.service.tmpl
index 2af4774..e7cd86e 100644
--- a/cmd/watchdog/installer/dist/etc/systemd/system/_name_.service.tmpl
+++ b/cmd/watchdog/installer/dist/etc/systemd/system/_name_.service.tmpl
@@ -1,16 +1,15 @@
 # Pre-req
 # sudo mkdir -p {{ .Local }}/opt/{{ .Name }}/ {{ .Local }}/var/log/{{ .Name }}
 {{ if not .Local -}}
-{{ if .User -}}
+{{- if and .User ( ne "root" .User ) -}}
 # sudo adduser {{ .User }} --home /opt/{{ .Name }}
 # sudo chown -R {{ .User }}:{{ .Group }} /opt/{{ .Name }}/ /var/log/{{ .Name }}
 {{- end }}
-{{- end }}
-
+{{ end -}}
 # Post-install
-# sudo systemctl {{ if .Local -}} --user {{- end }} daemon-reload
-# sudo systemctl {{ if .Local -}} --user {{- end }} restart {{ .Name }}.service
-# sudo journalctl {{ if .Local -}} --user {{- end }} -xefu {{ .Name }}
+# sudo systemctl {{ if .Local -}} --user {{ end -}} daemon-reload
+# sudo systemctl {{ if .Local -}} --user {{ end -}} restart {{ .Name }}.service
+# sudo journalctl {{ if .Local -}} --user {{ end -}} -xefu {{ .Name }}
 
 [Unit]
 Description={{ .Title }} - {{ .Desc }}
diff --git a/cmd/watchdog/installer/install_linux.go b/cmd/watchdog/installer/install_linux.go
index 869dbda..14bd47c 100644
--- a/cmd/watchdog/installer/install_linux.go
+++ b/cmd/watchdog/installer/install_linux.go
@@ -32,7 +32,7 @@ func install(c *Config) error {
 		// https://wiki.archlinux.org/index.php/Systemd/User
 		serviceDir = filepath.Join(c.home, ".local/share/systemd/user")
 	}
-	err = os.MkdirAll(filepath.Dir(serviceDir), 0750)
+	err := os.MkdirAll(filepath.Dir(serviceDir), 0750)
 	if nil != err {
 		return err
 	}
@@ -59,7 +59,18 @@ func install(c *Config) error {
 	if err := ioutil.WriteFile(servicePath, rw.Bytes(), 0644); err != nil {
 		return fmt.Errorf("ioutil.WriteFile error: %v", err)
 	}
-	fmt.Printf("Wrote %q\n", servicePath)
 
+	// TODO template this as well?
+	userspace := ""
+	sudo := "sudo "
+	if !c.System {
+		userspace = "--user "
+		sudo = ""
+	}
+	fmt.Printf("System service installed as '%s'.\n", servicePath)
+	fmt.Printf("Run the following to start '%s':\n", c.Name)
+	fmt.Printf("\t" + sudo + "systemctl " + userspace + "daemon-reload\n")
+	fmt.Printf("\t"+sudo+"systemctl "+userspace+"restart %s.service\n", c.Name)
+	fmt.Printf("\t"+sudo+"journalctl "+userspace+"-xefu %s\n", c.Name)
 	return nil
 }