fix: GRUB menu entries appear in English after system upgrade (#201)

Supplement locale-related environment variables when
 calling the deepin-immutable-ctl command.

Log: 修复系统语言为汉语时，GRUB 菜单项在系统升级后变为英语
pms: Bug-316123, Bug-323697

Author: electricface

src/lastore-daemon/common.go

@@ -25,6 +25,7 @@ import (
 	"github.com/linuxdeepin/lastore-daemon/src/internal/config"
 	"github.com/linuxdeepin/lastore-daemon/src/internal/system"
 	"github.com/linuxdeepin/lastore-daemon/src/internal/system/apt"
+	"github.com/linuxdeepin/lastore-daemon/src/internal/utils"
 
 	"github.com/godbus/dbus/v5"
 	"github.com/linuxdeepin/go-lib/dbusutil"
@@ -143,6 +144,24 @@ func getLang(envVars procfs.EnvVars) string {
 	return ""
 }
 
+var originalLocaleEnvs []string
+
+// collectAndClearLocaleEnvs collects current locale environment variables,
+// clears them from the environment, and stores the original values for later use
+func collectAndClearLocaleEnvs() {
+	originalLocaleEnvs = nil
+	// Iterate over the list of environment variable names related to locale settings
+	for _, localeEnvName := range []string{"LC_ALL", "LANGUAGE",
+		"LC_MESSAGES", "LANG"} {
+		localeEnvValue, exists := os.LookupEnv(localeEnvName)
+		if exists {
+			// Store the original locale environment variables for later use
+			originalLocaleEnvs = append(originalLocaleEnvs, localeEnvName+"="+localeEnvValue)
+		}
+		_ = utils.UnsetEnv(localeEnvName)
+	}
+}
+
 func listPackageDesktopFiles(pkg string) []string {
 	var result []string
 	filenames := system.ListPackageFile(pkg)

src/lastore-daemon/immutable.go

@@ -16,6 +16,7 @@ func (i *immutableManager) osTreeCmd(args []string) (out string, err error) {
 		args = append(args, "-v")
 		cmd := exec.Command(DEEPIN_IMMUTABLE_CTL, args...) // #nosec G204
 		cmd.Env = append(os.Environ(), "IMMUTABLE_DISABLE_REMOUNT=false")
+		cmd.Env = append(cmd.Env, originalLocaleEnvs...)
 		logger.Info("run command:", cmd.Args)
 		var stdout, stderr bytes.Buffer
 		cmd.Stdout = &stdout

src/lastore-daemon/main.go

@@ -14,7 +14,6 @@ import (
 	. "github.com/linuxdeepin/lastore-daemon/src/internal/config"
 	"github.com/linuxdeepin/lastore-daemon/src/internal/system"
 	"github.com/linuxdeepin/lastore-daemon/src/internal/system/dut"
-	"github.com/linuxdeepin/lastore-daemon/src/internal/utils"
 
 	"github.com/godbus/dbus/v5"
 	"github.com/linuxdeepin/dde-api/inhibit_hint"
@@ -61,10 +60,8 @@ func main() {
 		return
 	}
 
-	_ = utils.UnsetEnv("LC_ALL")
-	_ = utils.UnsetEnv("LANGUAGE")
-	_ = utils.UnsetEnv("LC_MESSAGES")
-	_ = utils.UnsetEnv("LANG")
+	// Collect and clear locale environment variables
+	collectAndClearLocaleEnvs()
 
 	gettext.InitI18n()
 	gettext.Textdomain("lastore-daemon")