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Fix spinner spam in non-TTY mode (Claude Code)

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- Detect if running in real terminal vs captured output
- In TTY: show animated spinner with carriage returns
- In non-TTY: print simple static messages (no animation)
- Prevents output file from exploding with spinner frames

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Matt Van Horn
2026-01-23 16:57:33 -08:00
parent 7b3150a69d
commit 4e871a4f35
1 changed files with 36 additions and 11 deletions
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scripts/lib/ui.py
+36 -11
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@@ -1,11 +1,15 @@
"""Terminal UI utilities for last30days skill."""
import os
import sys
import time
import threading
import random
from typing import Optional
# Check if we're in a real terminal (not captured by Claude Code)
IS_TTY = sys.stderr.isatty()
# ANSI color codes
class Colors:
PURPLE = '\033[95m'
@@ -82,6 +86,7 @@ class Spinner:
self.running = False
self.thread: Optional[threading.Thread] = None
self.frame_idx = 0
self.shown_static = False
def _spin(self):
while self.running:
@@ -93,20 +98,33 @@ class Spinner:
def start(self):
self.running = True
self.thread = threading.Thread(target=self._spin, daemon=True)
self.thread.start()
if IS_TTY:
# Real terminal - animate
self.thread = threading.Thread(target=self._spin, daemon=True)
self.thread.start()
else:
# Not a TTY (Claude Code) - just print once
if not self.shown_static:
sys.stderr.write(f"⏳ {self.message}\n")
sys.stderr.flush()
self.shown_static = True
def update(self, message: str):
self.message = message
if not IS_TTY and not self.shown_static:
# Print update in non-TTY mode
sys.stderr.write(f"⏳ {message}\n")
sys.stderr.flush()
def stop(self, final_message: str = ""):
self.running = False
if self.thread:
self.thread.join(timeout=0.2)
# Clear the line
sys.stderr.write("\r" + " " * 80 + "\r")
if IS_TTY:
# Clear the line in real terminal
sys.stderr.write("\r" + " " * 80 + "\r")
if final_message:
sys.stderr.write(f"{Colors.GREEN}✓{Colors.RESET} {final_message}\n")
sys.stderr.write(f"✓ {final_message}\n")
sys.stderr.flush()
@@ -122,8 +140,12 @@ class ProgressDisplay:
self._show_banner()
def _show_banner(self):
sys.stderr.write(MINI_BANNER + "\n")
sys.stderr.write(f"{Colors.DIM}Topic: {Colors.RESET}{Colors.BOLD}{self.topic}{Colors.RESET}\n\n")
if IS_TTY:
sys.stderr.write(MINI_BANNER + "\n")
sys.stderr.write(f"{Colors.DIM}Topic: {Colors.RESET}{Colors.BOLD}{self.topic}{Colors.RESET}\n\n")
else:
# Simple text for non-TTY
sys.stderr.write(f"/last30days · researching: {self.topic}\n")
sys.stderr.flush()
def start_reddit(self):
@@ -171,10 +193,13 @@ class ProgressDisplay:
def show_complete(self, reddit_count: int, x_count: int):
elapsed = time.time() - self.start_time
sys.stderr.write(f"\n{Colors.GREEN}{Colors.BOLD}✓ Research complete{Colors.RESET} ")
sys.stderr.write(f"{Colors.DIM}({elapsed:.1f}s){Colors.RESET}\n")
sys.stderr.write(f" {Colors.YELLOW}Reddit:{Colors.RESET} {reddit_count} threads ")
sys.stderr.write(f"{Colors.CYAN}X:{Colors.RESET} {x_count} posts\n\n")
if IS_TTY:
sys.stderr.write(f"\n{Colors.GREEN}{Colors.BOLD}✓ Research complete{Colors.RESET} ")
sys.stderr.write(f"{Colors.DIM}({elapsed:.1f}s){Colors.RESET}\n")
sys.stderr.write(f" {Colors.YELLOW}Reddit:{Colors.RESET} {reddit_count} threads ")
sys.stderr.write(f"{Colors.CYAN}X:{Colors.RESET} {x_count} posts\n\n")
else:
sys.stderr.write(f"✓ Research complete ({elapsed:.1f}s) - Reddit: {reddit_count} threads, X: {x_count} posts\n")
sys.stderr.flush()
def show_cached(self, age_hours: float = None):