feat: publish sanitized custom.97 source

common/log_text.go

@@ -0,0 +1,35 @@
+package common
+
+import (
+	_ "embed"
+	"fmt"
+	"strings"
+)
+
+// Server log lines are English. logTextZhCN holds the Chinese text of the
+// lines that have one, keyed by their English format.
+//
+//go:embed log_text.zh-CN.json
+var logTextZhCN []byte
+
+// logTexts is the translation table DEFAULT_LANGUAGE selected; nil prints English.
+var logTexts map[string]string
+
+// SetLogLanguage selects the language of server log lines. A language that
+// starts with "zh" prints the Chinese text; anything else prints English.
+func SetLogLanguage(language string) {
+	logTexts = nil
+	if !strings.HasPrefix(strings.ToLower(strings.TrimSpace(language)), "zh") {
+		return
+	}
+	_ = Unmarshal(logTextZhCN, &logTexts)
+}
+
+// LogText formats a server log line in the language of DEFAULT_LANGUAGE. format is
+// the English text and the key of its translation in log_text.zh-CN.json.
+func LogText(format string, args ...any) string {
+	if translated, ok := logTexts[format]; ok {
+		return fmt.Sprintf(translated, args...)
+	}
+	return fmt.Sprintf(format, args...)
+}