rename to fortify and restructure

More sandbox features will be added and this will no longer track ego's features and behaviour.

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

internal/system/retrieve.go

@@ -0,0 +1,28 @@
+package system
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"strconv"
+)
+
+func Retrieve(verbose bool) {
+	if V != nil {
+		panic("system info retrieved twice")
+	}
+
+	v := &Values{Share: path.Join(os.TempDir(), "fortify."+strconv.Itoa(os.Geteuid())), Verbose: verbose}
+
+	if r, ok := os.LookupEnv(xdgRuntimeDir); !ok {
+		fmt.Println("Env variable", xdgRuntimeDir, "unset")
+
+		// too early for fatal
+		os.Exit(1)
+	} else {
+		v.Runtime = r
+		v.RunDir = path.Join(v.Runtime, "fortify")
+	}
+
+	V = v
+}

internal/system/value.go

@@ -0,0 +1,17 @@
+package system
+
+const (
+	xdgRuntimeDir = "XDG_RUNTIME_DIR"
+)
+
+type Values struct {
+	Share   string
+	Runtime string
+	RunDir  string
+	Verbose bool
+}
+
+var (
+	V           *Values
+	MethodFlags [2]bool
+)