Introduce config_dir(), move both to os_ specific files.

Breaks windows build. Will be fixed in a moment.

Author: nsf

config.go

@@ -12,10 +12,6 @@ import (
 	"strconv"
 )
 
-func config_file() string {
-	return filepath.Join(xdg_home_dir(), "gocode", "config.json")
-}
-
 //-------------------------------------------------------------------------
 // config
 //
@@ -135,7 +131,7 @@ func (this *config) write() error {
 	}
 
 	// make sure config dir exists
-	dir := filepath.Join(xdg_home_dir(), "gocode")
+	dir := config_dir()
 	if !file_exists(dir) {
 		os.MkdirAll(dir, 0755)
 	}

os_posix.go

@@ -36,3 +36,13 @@ func get_executable_filename() string {
 	}
 	return ""
 }
+
+// config location
+
+func config_dir() string {
+	return filepath.Join(xdg_home_dir(), "gocode")
+}
+
+func config_file() string {
+	return filepath.Join(xdg_home_dir(), "gocode", "config.json")
+}