chore: document build the enabled task.

cmd/prebuild/main.go

@@ -20,13 +20,13 @@ func init() {
 
 	// Define the tasks applied by default
 	prepare.Register(
-		"synchronise",
-		"ignore",
-		"merge",
-		"configure",
-		"setflags",
-		"overwrite",
-		"systemd-default",
+		"synchronise",     // Initialize a new clean apparmor.d build directory
+		"ignore",          // Ignore profiles and files from dist/ignore
+		"merge",           // Merge profiles (from group/, profiles-*-*/) to a unified apparmor.d directory
+		"configure",       // Set distribution specificities
+		"setflags",        // Set flags as definied in dist/flags
+		"overwrite",       // Overwrite dummy upstream profiles
+		"systemd-default", // Set systemd unit drop in files for dbus profiles
 	)
 
 	// Build tasks applied by default
@@ -65,9 +65,6 @@ func init() {
 		/etc/apparmor.d/whonix-firewall
 		`
 	}
-	if prebuild.ABI == 3 {
-		builder.Register("abi3")
-	}
 }
 
 func main() {

pkg/prebuild/cli/cli.go

@@ -86,21 +86,11 @@ func Prebuild() {
 		builder.Register("enforce")
 	}
 
-	switch abi {
-	case 3:
-		prebuild.ABI = 3
-		builder.Register("abi3")
-	case 4:
-		prebuild.ABI = 4
-		for i, b := range builder.Builds {
-			if b.Name() == "abi3" {
-				builder.Builds = append(builder.Builds[:i], builder.Builds[i+1:]...)
-				break
+	if abi != nilABI {
+		prebuild.ABI = abi
 	}
-		}
-	case nilABI:
-	default:
-		logging.Fatal("ABI %d not supported", abi)
+	if prebuild.ABI == 3 {
+		builder.Register("abi3") // Convert all profiles from abi 4.0 to abi 3.0
 	}
 
 	if file != "" {

pkg/prebuild/prepare/merge.go

@@ -20,7 +20,7 @@ func init() {
 	RegisterTask(&Merge{
 		Base: prebuild.Base{
 			Keyword: "merge",
-			Msg:     "Merge all profiles into a unified apparmor.d directory",
+			Msg:     "Merge profiles (from group/, profiles-*-*/) to a unified apparmor.d directory",
 		},
 	})
 }