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feat: redesign spinner animation with tail

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Paul Gauthier 2025-05-08 15:57:56 -07:00 • committed by Paul Gauthier (aider)
parent 5bb891b2bb
commit 3a5a46253d
1 changed files with 23 additions and 16 deletions
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39
aider/utils.py
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@ -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: