feat: implement distribution-specific build

Makefile

@@ -1,3 +1,6 @@
+UPDATE_URL=https://noisetorch.epicgamer.org
+UPDATE_PUBKEY=3mL+rBi4yBZ1wGimQ/oSQCjxELzgTh+673H4JdzQBOk=
+
 dev: rnnoise
 	mkdir -p bin/
 	go generate
@@ -14,7 +17,7 @@ release: rnnoise
 
 	mkdir -p tmp/.local/bin/
 	go generate
-	CGO_ENABLED=0 GOOS=linux go build -tags release -a -ldflags '-s -w -extldflags "-static"' .
+	CGO_ENABLED=0 GOOS=linux go build -tags release -a -ldflags '-s -w -extldflags "-static" -X main.distribution=official -X main.updateURL=${UPDATE_URL} -X main.publicKeyString=${UPDATE_PUBKEY}' .
 	upx noisetorch
 	mv noisetorch tmp/.local/bin/
 	cd tmp/; \

main.go

@@ -41,6 +41,10 @@ type device struct {
 }
 
 const appName = "NoiseTorch"
+var distribution = "custom"  // will be changed by build
+
+var updateURL = ""  // ditto
+var publicKeyString = ""  // ditto
 
 func main() {
 	opt := parseCLIOpts()
@@ -50,7 +54,7 @@ func main() {
 	} else {
 		log.SetOutput(ioutil.Discard)
 	}
-	log.Printf("Application starting. Version: %s\n", version)
+	log.Printf("Application starting. Version: %s (%s)\n", version, distribution)
 	log.Printf("CAP_SYS_RESOURCE: %t\n", hasCapSysResource(getCurrentCaps()))
 
 	initializeConfigIfNot()

ui.go

@@ -345,7 +345,7 @@ func versionView(ctx *ntcontext, w *nucular.Window) {
 	w.Row(50).Dynamic(1)
 	w.Label("Version", "CB")
 	w.Row(50).Dynamic(1)
-	w.Label(version, "CB")
+	w.Label(fmt.Sprintf("%s (%s)", version, distribution), "CB")
 	w.Row(50).Dynamic(1)
 	w.Spacing(1)
 	w.Row(20).Dynamic(2)

update.go

@@ -14,9 +14,6 @@ import (
 	"strings"
 )
 
-var updateURL = "https://noisetorch.epicgamer.org"
-var publicKeyString = "3mL+rBi4yBZ1wGimQ/oSQCjxELzgTh+673H4JdzQBOk="
-
 type updateui struct {
 	serverVersion string
 	available     bool
@@ -24,7 +21,14 @@ type updateui struct {
 	updatingText  string
 }
 
+func updateable() bool {
+	return updateURL != "" && publicKeyString != ""
+}
+
 func updateCheck(ctx *ntcontext) {
+	if !updateable() {
+		return
+	}
 	log.Println("Checking for updates")
 	bodybuf, err := fetchFile("version.txt")
 	if err != nil {
@@ -41,6 +45,9 @@ func updateCheck(ctx *ntcontext) {
 }
 
 func update(ctx *ntcontext) {
+	if !updateable() {
+		return
+	}
 	sig, err := fetchFile("NoiseTorch_x64.tgz.sig")
 	if err != nil {
 		log.Println("Couldn't fetch signature", err)

update_noop.go

@@ -9,6 +9,10 @@ type updateui struct {
 	updatingText  string
 }
 
+func updateable() bool {
+	return false
+}
+
 func updateCheck(ctx *ntcontext) {
 	// noop for non-release versions
 }