final: refactor for removal of system package and reduction of interactions to state package

State query command has been moved to main where it belongs, "system" information are now fetched in app.New and stored in *App with accessors for relevant values. Exit (cleanup-related) functions are separated into its dedicated "final" package.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>

state.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"git.ophivana.moe/cat/fortify/internal/state"
+	"os"
+	"text/tabwriter"
+)
+
+var (
+	stateActionEarly [2]bool
+)
+
+func init() {
+	flag.BoolVar(&stateActionEarly[0], "state", false, "print state information of active launchers")
+	flag.BoolVar(&stateActionEarly[1], "state-current", false, "print state information of active launchers for the specified user")
+}
+
+// tryState is called after app initialisation
+func tryState() {
+	var w *tabwriter.Writer
+
+	switch {
+	case stateActionEarly[0]:
+		state.MustPrintLauncherStateGlobal(&w, a.RunDir())
+	case stateActionEarly[1]:
+		state.MustPrintLauncherState(&w, a.RunDir(), a.Uid)
+	default:
+		return
+	}
+
+	if w != nil {
+		if err := w.Flush(); err != nil {
+			fmt.Println("warn: error formatting output:", err)
+		}
+	} else {
+		fmt.Println("No information available")
+	}
+
+	os.Exit(0)
+}