exit: move final and early code to internal package

Exit cleanup state information is now stored in a dedicated struct and built up using methods of that struct.

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

internal/state/data.go

@@ -4,6 +4,8 @@ import (
 	"encoding/gob"
 	"os"
 	"path"
+
+	"git.ophivana.moe/cat/fortify/internal"
 )
 
 // we unfortunately have to assume there are never races between processes
@@ -14,10 +16,12 @@ type launcherState struct {
 	Launcher   string
 	Argv       []string
 	Command    []string
-	Capability Enablements
+	Capability internal.Enablements
 }
 
-func ReadLaunchers(runDirPath, uid string) ([]*launcherState, error) {
+// ReadLaunchers reads all launcher state file entries for the requested user
+// and if decode is true decodes these launchers as well.
+func ReadLaunchers(runDirPath, uid string, decode bool) ([]*launcherState, error) {
 	var f *os.File
 	var r []*launcherState
 	launcherPrefix := path.Join(runDirPath, uid)
@@ -39,7 +43,11 @@ func ReadLaunchers(runDirPath, uid string) ([]*launcherState, error) {
 
 					var s launcherState
 					r = append(r, &s)
-					return gob.NewDecoder(f).Decode(&s)
+					if decode {
+						return gob.NewDecoder(f).Decode(&s)
+					} else {
+						return nil
+					}
 				}
 			}(); err != nil {
 				return nil, err

internal/state/enablement.go

@@ -1,34 +0,0 @@
-package state
-
-type (
-	Enablement  uint8
-	Enablements uint64
-)
-
-const (
-	EnableWayland Enablement = iota
-	EnableX
-	EnableDBus
-	EnablePulse
-
-	enableLength
-)
-
-var enablementString = [enableLength]string{
-	"Wayland",
-	"X11",
-	"D-Bus",
-	"PulseAudio",
-}
-
-func (e Enablement) String() string {
-	return enablementString[e]
-}
-
-func (e Enablement) Mask() Enablements {
-	return 1 << e
-}
-
-func (es Enablements) Has(e Enablement) bool {
-	return es&e.Mask() != 0
-}

internal/state/print.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 	"text/tabwriter"
 
+	"git.ophivana.moe/cat/fortify/internal"
 	"git.ophivana.moe/cat/fortify/internal/verbose"
 )
 
@@ -31,7 +32,7 @@ func MustPrintLauncherStateGlobal(w **tabwriter.Writer, runDirPath string) {
 }
 
 func MustPrintLauncherState(w **tabwriter.Writer, runDirPath, uid string) {
-	launchers, err := ReadLaunchers(runDirPath, uid)
+	launchers, err := ReadLaunchers(runDirPath, uid, true)
 	if err != nil {
 		fmt.Println("Error reading launchers:", err)
 		os.Exit(1)
@@ -49,7 +50,7 @@ func MustPrintLauncherState(w **tabwriter.Writer, runDirPath, uid string) {
 
 	for _, state := range launchers {
 		enablementsDescription := strings.Builder{}
-		for i := Enablement(0); i < enableLength; i++ {
+		for i := internal.Enablement(0); i < internal.EnableLength; i++ {
 			if state.Capability.Has(i) {
 				enablementsDescription.WriteString(", " + i.String())
 			}

internal/state/track.go

@@ -8,10 +8,12 @@ import (
 	"os/exec"
 	"path"
 	"strconv"
+
+	"git.ophivana.moe/cat/fortify/internal"
 )
 
 // SaveProcess called after process start, before wait
-func SaveProcess(uid string, cmd *exec.Cmd, runDirPath string, command []string, enablements Enablements) (string, error) {
+func SaveProcess(uid string, cmd *exec.Cmd, runDirPath string, command []string, enablements internal.Enablements) (string, error) {
 	statePath := path.Join(runDirPath, uid, strconv.Itoa(cmd.Process.Pid))
 	state := launcherState{
 		PID:        cmd.Process.Pid,