Initialize readline input history mechanism.readline

2 files changed, 14 insertions, 0 deletions

diff --git a/src/epy_reader/config.py b/src/epy_reader/config.py
index db70a98..1948afd 100644
--- a/src/epy_reader/config.py
+++ b/src/epy_reader/config.py
@@ -1,6 +1,7 @@
 import dataclasses
 import json
 import os
+import readline
 import sys
 from typing import Mapping, Tuple, Union
 
@@ -36,6 +37,12 @@ class Config(AppData):
         # to build help menu text
         self.keymap_user_dict = keymap_dict
 
+        if os.path.isdir(self.prefix):
+            self.input_history_file = os.path.join(self.prefix, 'readline_history.txt')
+            if os.path.isfile(self.input_history_file):
+                readline.read_history_file(self.input_history_file)
+                readline.set_history_length(1000)
+
     @property
     def filepath(self) -> str:
         return os.path.join(self.prefix, "configuration.json") if self.prefix else os.devnull
diff --git a/src/epy_reader/reader.py b/src/epy_reader/reader.py
index ee615f8..310833a 100644
--- a/src/epy_reader/reader.py
+++ b/src/epy_reader/reader.py
@@ -4,6 +4,7 @@ import dataclasses
 import multiprocessing
 import os
 import re
+import readline
 import shutil
 import signal
 import sqlite3
@@ -135,6 +136,9 @@ class Reader:
         self.tts_support: bool = bool(self._tts_speaker)
         self.is_speaking: bool = False
 
+        # readline history
+        self.input_history_file = config.input_history_file
+
         # multi process & progress percentage
         self._multiprocess_support: bool = False if multiprocessing.cpu_count() == 1 else True
         self._process_counting_letter: Optional[multiprocessing.Process] = None
@@ -703,6 +707,9 @@ class Reader:
     def cleanup(self) -> None:
         self.ebook.cleanup()
 
+        if self.input_history_file:
+            readline.write_history_file(self.input_history_file)
+
         if isinstance(self._process_counting_letter, multiprocessing.Process):
             if self._process_counting_letter.is_alive():
                 self._process_counting_letter.terminate()