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Merge pull request #309 from tcdent/init-qol
Re-prompt user for project name instead of exiting, spinner for package install
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| import itertools | ||
| import shutil | ||
| import sys | ||
| import threading | ||
| import time | ||
| from typing import Optional, Literal | ||
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| from agentstack import log | ||
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| class Spinner: | ||
| def __init__(self, message="Working", delay=0.1): | ||
| self.spinner = itertools.cycle(['⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏']) | ||
| self.delay = delay | ||
| self.message = message | ||
| self.running = False | ||
| self.spinner_thread = None | ||
| self.start_time = None | ||
| self._lock = threading.Lock() | ||
| self._last_printed_len = 0 | ||
| self._last_message = "" | ||
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| def _clear_line(self): | ||
| """Clear the current line in terminal.""" | ||
| sys.stdout.write('\r' + ' ' * self._last_printed_len + '\r') | ||
| sys.stdout.flush() | ||
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| def spin(self): | ||
| while self.running: | ||
| with self._lock: | ||
| elapsed = time.time() - self.start_time | ||
| terminal_width = shutil.get_terminal_size().columns | ||
| spinner_char = next(self.spinner) | ||
| time_str = f"{elapsed:.1f}s" | ||
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| # Format: [spinner] Message... [time] | ||
| message = f"\r{spinner_char} {self.message}... [{time_str}]" | ||
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| # Ensure we don't exceed terminal width | ||
| if len(message) > terminal_width: | ||
| message = message[:terminal_width - 3] + "..." | ||
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| # Clear previous line and print new one | ||
| self._clear_line() | ||
| sys.stdout.write(message) | ||
| sys.stdout.flush() | ||
| self._last_printed_len = len(message) | ||
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| time.sleep(self.delay) | ||
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| def __enter__(self): | ||
| self.start() | ||
| return self | ||
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| def __exit__(self, exc_type, exc_val, exc_tb): | ||
| self.stop() | ||
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| def start(self): | ||
| if not self.running: | ||
| self.running = True | ||
| self.start_time = time.time() | ||
| self.spinner_thread = threading.Thread(target=self.spin) | ||
| self.spinner_thread.start() | ||
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| def stop(self): | ||
| if self.running: | ||
| self.running = False | ||
| if self.spinner_thread: | ||
| self.spinner_thread.join() | ||
| with self._lock: | ||
| self._clear_line() | ||
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| def update_message(self, message): | ||
| """Update spinner message and ensure clean line.""" | ||
| with self._lock: | ||
| self._clear_line() | ||
| self.message = message | ||
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| def clear_and_log(self, message, color: Literal['success', 'info'] = 'success'): | ||
| """Temporarily clear spinner, print message, and resume spinner. | ||
| Skips printing if message is the same as the last message printed.""" | ||
| with self._lock: | ||
| # Skip if message is same as last one | ||
| if hasattr(self, '_last_message') and self._last_message == message: | ||
| return | ||
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| self._clear_line() | ||
| if color == 'success': | ||
| log.success(message) | ||
| else: | ||
| log.info(message) | ||
| sys.stdout.flush() | ||
|
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| # Store current message | ||
| self._last_message = message |
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