Fix creation of configdir in prehook

Move prehook dir settings to main to ensure that running the tests
does not result in the configdir being created.

internal/prehook/prehook.go

@@ -12,22 +12,14 @@ import (
 	"net"
 	"os"
 	"os/exec"
-	"path/filepath"
 	"time"
 
 	"github.com/la5nta/pat/internal/debug"
-	"github.com/la5nta/pat/internal/directories"
 	"golang.org/x/sync/errgroup"
 )
 
 var ErrConnNotWrapped = errors.New("connection not wrapped for prehook")
 
-func init() {
-	// Add {config-dir}/prehooks/ to PATH
-	prehooksPath := filepath.Join(directories.ConfigDir(), "prehooks")
-	os.Setenv("PATH", fmt.Sprintf(`%s%c%s`, prehooksPath, os.PathListSeparator, os.Getenv("PATH")))
-}
-
 type Script struct {
 	File string
 	Args []string

main.go

@@ -208,6 +208,7 @@ var fOptions struct {
 	Listen       string
 	MailboxPath  string
 	ConfigPath   string
+	PrehooksPath string
 	LogPath      string
 	EventLogPath string
 	FormsPath    string
@@ -225,11 +226,13 @@ func optionsSet() *pflag.FlagSet {
 	defaultMBox := filepath.Join(directories.DataDir(), "mailbox")
 	defaultFormsPath := filepath.Join(directories.DataDir(), "Standard_Forms")
 	defaultConfigPath := filepath.Join(directories.ConfigDir(), "config.json")
+	defaultPrehooksPath := filepath.Join(directories.ConfigDir(), "prehooks")
 	defaultLogPath := filepath.Join(directories.StateDir(), strings.ToLower(buildinfo.AppName+".log"))
 	defaultEventLogPath := filepath.Join(directories.StateDir(), "eventlog.json")
 	set.StringVar(&fOptions.MailboxPath, "mbox", defaultMBox, "Path to mailbox directory.")
 	set.StringVar(&fOptions.FormsPath, "forms", defaultFormsPath, "Path to forms directory.")
 	set.StringVar(&fOptions.ConfigPath, "config", defaultConfigPath, "Path to config file.")
+	set.StringVar(&fOptions.PrehooksPath, "prehooks", defaultPrehooksPath, "Path to prehooks")
 	set.StringVar(&fOptions.LogPath, "log", defaultLogPath, "Path to log file. The file is truncated on each startup.")
 	set.StringVar(&fOptions.EventLogPath, "event-log", defaultEventLogPath, "Path to event log file.")
 
@@ -308,6 +311,8 @@ func main() {
 		os.Setenv("GZIP_EXPERIMENT", "1")
 	}
 
+	os.Setenv("PATH", fmt.Sprintf(`%s%c%s`, fOptions.PrehooksPath, os.PathListSeparator, os.Getenv("PATH")))
+
 	// Parse configuration file
 	var err error
 	config, err = LoadConfig(fOptions.ConfigPath, cfg.DefaultConfig)