Refactored config system again

app/commands.go

@@ -1,8 +1,11 @@
 package app
 
 import (
+	"encoding/json"
 	"fmt"
+	"io"
 	"log"
+	"net/http"
 	"os"
 	"os/exec"
 	"os/user"
@@ -15,7 +18,8 @@ import (
 
 var (
 	VersionCmd = basicCmd("version", "Show version", versionCmd)
-	NewKeyCmd  = basicCmd("gen-key", "Generates encryption key", newKeyCmd)
+	NewKeyCmd  = basicCmd("gen-key", "Generates encryption key", GenKeyCmd)
+	UpdateCmd  = basicCmd("update", "Updates if new version is found", updateCmd)
 	DevCmd     = basicCmd("dev", "Dev Function", devCmd)
 
 	domainCertDir string
@@ -74,7 +78,7 @@ func versionCmd(cmd *cobra.Command, args []string) {
 	)
 }
 
-func newKeyCmd(cmd *cobra.Command, args []string) {
+func GenKeyCmd(cmd *cobra.Command, args []string) {
 	key, err := common.GenerateKey()
 	if err != nil {
 		log.Fatalf("%v", err)
@@ -82,6 +86,41 @@ func newKeyCmd(cmd *cobra.Command, args []string) {
 	fmt.Printf(key)
 }
 
+func updateCmd(cmd *cobra.Command, args []string) {
+	if os.Geteuid() != 0 {
+		log.Fatal(fmt.Errorf("installation must be run as root"))
+	}
+
+	err := LoadConfig()
+	if err != nil {
+		log.Fatalf("%v", err)
+	}
+	resp, err := http.Get(SourceCertmanRepo + "/latest")
+	if err != nil {
+		log.Fatalf("%v", err)
+	}
+	defer resp.Body.Close()
+	body, err := io.ReadAll(resp.Body)
+
+	var release GiteaRelease
+	err = json.Unmarshal(body, &release)
+	if err != nil {
+		log.Fatalf("%v", err)
+	}
+
+	for _, asset := range release.Assets {
+		if strings.Contains(asset.Name, Config().App.Mode) {
+			if !strings.Contains(asset.Name, common.Version) {
+				fmt.Printf("Found a newer version: %s\n", asset.Name)
+				err = downloadFile("/usr/local/bin/certman", SourceCertmanRepo+"/"+strconv.Itoa(release.Id)+"/assets/"+strconv.Itoa(asset.Id))
+				if err != nil {
+					log.Fatalf("%v", err)
+				}
+			}
+		}
+	}
+}
+
 func newDomainCmd(domain, domainDir string, dirOverridden bool) error {
 	//TODO add config option for "overridden dir"
 	if !common.IsValidFQDN(domain) {
@@ -160,15 +199,8 @@ func installCmd(isThin bool, mode string) error {
 				return fmt.Errorf("error creating group: %v: output %s", err, output)
 			}
 		}
-		certmanUser, err := user.Lookup("certman")
-		if err != nil {
-			return fmt.Errorf("error getting user certman: %v", err)
-		}
-		uid, err := strconv.Atoi(strings.TrimSpace(certmanUser.Uid))
-		if err != nil {
-			return err
-		}
-		gid, err := strconv.Atoi(strings.TrimSpace(certmanUser.Gid))
+		//TODO chmod after chown
+		uid, gid, err := GetUserIds("certman")
 		if err != nil {
 			return err
 		}
@@ -187,5 +219,12 @@ func installCmd(isThin bool, mode string) error {
 	} else {
 		CreateConfig(mode)
 	}
+
+	//TODO move executable to /usr/bin
+	//execPath, err := os.Executable()
+	//if err != nil {
+	//	return err
+	//}
+
 	return nil
 }