Windows and !Windows file code

cmd/rqlite/history/file.go

@@ -1,6 +1,6 @@
-package history
+//go:build !windows
 
-// This file would be for linux, file_linux.go. Also create file_windows.go
+package history
 
 import (
 	"io"
@@ -8,19 +8,15 @@ import (
 	"path/filepath"
 )
 
-func Reader() io.ReadCloser {
-	file := os.Getenv("RQLITE_HISTFILE")
-	if file == "" {
-		file = "rqlite_history"
-	}
+const historyFile = ".rqlite_history"
 
+func Reader() io.ReadCloser {
 	hdir, err := os.UserHomeDir()
 	if err != nil {
 		return nil
 	}
 
-	// Call OS-specific function actually
-	f, err := os.Open(filepath.Join(hdir, file))
+	f, err := os.Open(filepath.Join(hdir, historyFile))
 	if err != nil {
 		return nil
 	}
@@ -28,18 +24,12 @@ func Reader() io.ReadCloser {
 }
 
 func Writer() io.WriteCloser {
-	file := os.Getenv("RQLITE_HISTFILE")
-	if file == "" {
-		file = "rqlite_history"
-	}
-
 	hdir, err := os.UserHomeDir()
 	if err != nil {
 		return nil
 	}
 
-	// Call OS-specific function actually
-	f, err := os.OpenFile(filepath.Join(hdir, file), os.O_RDWR|os.O_CREATE, 0755)
+	f, err := os.OpenFile(filepath.Join(hdir, historyFile), os.O_RDWR|os.O_CREATE, 0755)
 	if err != nil {
 		return nil
 	}

cmd/rqlite/history/file_windows.go

@@ -0,0 +1,52 @@
+package history
+
+import (
+	"io"
+	"os"
+	"path/filepath"
+	"syscall"
+)
+
+const historyFile = "rqlite_history"
+
+func setHidden(path string) error {
+	filenameW, err := syscall.UTF16PtrFromString(path)
+	if err != nil {
+		return err
+	}
+
+	err = syscall.SetFileAttributes(filenameW, syscall.FILE_ATTRIBUTE_HIDDEN)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func Reader() io.ReadCloser {
+	hdir, err := os.UserHomeDir()
+	if err != nil {
+		return nil
+	}
+
+	f, err := os.Open(filepath.Join(hdir, historyFile))
+	if err != nil {
+		return nil
+	}
+	return f
+}
+
+func Writer() io.WriteCloser {
+	hdir, err := os.UserHomeDir()
+	if err != nil {
+		return nil
+	}
+
+	path := filepath.Join(hdir, historyFile)
+	f, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE, 0755)
+	if err != nil {
+		return nil
+	}
+	setHidden(path) // best effort
+	return f
+}