From 3a5a46253df244b5c0d2ff05ddcb511c04077805 Mon Sep 17 00:00:00 2001
From: Paul Gauthier <paul@aider.chat>
Date: Thu, 8 May 2025 15:57:56 -0700
Subject: [PATCH] feat: redesign spinner animation with tail

---
 aider/utils.py | 39 +++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/aider/utils.py b/aider/utils.py
index 0ec5ad5cc..b8b1e7b15 100644
--- a/aider/utils.py
+++ b/aider/utils.py
@@ -267,36 +267,43 @@ class Spinner:
 
         # Pre-render the animation frames using pure ASCII so they will
         # always display, even on very limited terminals.
-        ascii_forward = """
-[#------]
-[-#-----]
-[--#----]
-[---#---]
-[----#--]
-[-----#-]
-[------#]
+        ascii_frames = """
+[#=-----]
+[=#-----]
+[-=#----]
+[--=#---]
+[---=#--]
+[----=#-]
+[-----=#]
+[-----#=]
+[----#=-]
+[---#=--]
+[---#=--]
+[---#=--]
+[--#=---]
+[-#=----]
 """.strip().splitlines()
 
         # If unicode is supported, swap the ASCII chars for nicer glyphs.
         if self._supports_unicode():
-            scan_char, trail_char = "≡", "─"
-            forward = [f.replace("#", scan_char).replace("-", trail_char) for f in ascii_forward]
+            scan_char, tail_char, trail_char = "≡", "=", "─"
+            frames = [f.replace("#", scan_char).replace("-", trail_char) for f in ascii_frames]
         else:
-            scan_char, trail_char = "#", "-"
-            forward = ascii_forward
+            scan_char, tail_char, trail_char = "#", "=", "-"
+            frames = ascii_frames
 
         # Bounce the scanner back and forth.
-        self.frames = forward + forward[-2:0:-1]
+        self.frames = frames
         self.frame_idx = 0
         self.scan_char = scan_char
-        self.width = len(forward[0]) - 2  # number of chars between the brackets
-        self.animation_len = len(forward[0])
+        self.width = len(frames[0]) - 2  # number of chars between the brackets
+        self.animation_len = len(frames[0])
 
     def _supports_unicode(self) -> bool:
         if not self.is_tty:
             return False
         try:
-            sys.stdout.write("∎\b \b")
+            sys.stdout.write("≡\b─\b")
             sys.stdout.flush()
             return True
         except UnicodeEncodeError: