forked from aegis/pyserveX
pyservectl init
This commit is contained in:
Илья Глазунов
@@ -0,0 +1,290 @@
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"""
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pyserve logs - View service logs
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"""
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import asyncio
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import sys
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import time
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from pathlib import Path
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from typing import Optional
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import click
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@click.command("logs")
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@click.argument("services", nargs=-1)
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@click.option(
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"-f",
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"--follow",
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is_flag=True,
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help="Follow log output",
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)
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@click.option(
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"--tail",
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"tail",
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default=100,
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type=int,
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help="Number of lines to show from the end",
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)
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@click.option(
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"--since",
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"since",
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default=None,
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help="Show logs since timestamp (e.g., '10m', '1h', '2024-01-01')",
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)
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@click.option(
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"--until",
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"until_time",
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default=None,
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help="Show logs until timestamp",
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)
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@click.option(
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"-t",
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"--timestamps",
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is_flag=True,
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help="Show timestamps",
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)
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@click.option(
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"--no-color",
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is_flag=True,
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help="Disable colored output",
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)
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@click.option(
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"--filter",
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"filter_pattern",
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default=None,
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help="Filter logs by pattern",
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)
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@click.pass_obj
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def logs_cmd(
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ctx,
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services: tuple,
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follow: bool,
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tail: int,
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since: Optional[str],
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until_time: Optional[str],
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timestamps: bool,
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no_color: bool,
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filter_pattern: Optional[str],
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):
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"""
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View service logs.
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If no services are specified, shows logs from all services.
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\b
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Examples:
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pyserve logs # All logs
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pyserve logs api # Logs from api service
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pyserve logs api admin # Logs from multiple services
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pyserve logs -f # Follow logs
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pyserve logs --tail 50 # Last 50 lines
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pyserve logs --since "10m" # Logs from last 10 minutes
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"""
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from ..output import console, print_error, print_info
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from ..state import StateManager
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state_manager = StateManager(Path(".pyserve"), ctx.project)
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if services:
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log_files = [
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(name, state_manager.get_service_log_file(name)) for name in services
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]
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else:
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all_services = state_manager.get_all_services()
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if not all_services:
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main_log = Path("logs/pyserve.log")
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if main_log.exists():
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log_files = [("pyserve", main_log)]
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else:
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print_info("No logs available. Start services with 'pyserve up'")
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return
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else:
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log_files = [
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(name, state_manager.get_service_log_file(name))
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for name in all_services
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]
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existing_logs = [(name, path) for name, path in log_files if path.exists()]
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if not existing_logs:
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print_info("No log files found")
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return
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since_time = _parse_time(since) if since else None
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until_timestamp = _parse_time(until_time) if until_time else None
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colors = ["cyan", "green", "yellow", "blue", "magenta"]
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service_colors = {
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name: colors[i % len(colors)] for i, (name, _) in enumerate(existing_logs)
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}
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if follow:
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asyncio.run(
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_follow_logs(
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existing_logs,
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service_colors,
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timestamps,
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no_color,
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filter_pattern,
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)
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)
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else:
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_read_logs(
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existing_logs,
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service_colors,
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tail,
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since_time,
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until_timestamp,
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timestamps,
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no_color,
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filter_pattern,
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)
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def _parse_time(time_str: str) -> Optional[float]:
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import re
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from datetime import datetime, timedelta
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# Relative time (e.g., "10m", "1h", "2d")
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match = re.match(r"^(\d+)([smhd])$", time_str)
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if match:
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value = int(match.group(1))
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unit = match.group(2)
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units = {"s": 1, "m": 60, "h": 3600, "d": 86400}
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return time.time() - (value * units[unit])
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# Relative phrase (e.g., "10m ago")
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match = re.match(r"^(\d+)([smhd])\s+ago$", time_str)
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if match:
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value = int(match.group(1))
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unit = match.group(2)
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units = {"s": 1, "m": 60, "h": 3600, "d": 86400}
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return time.time() - (value * units[unit])
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# ISO format
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try:
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dt = datetime.fromisoformat(time_str)
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return dt.timestamp()
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except ValueError:
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pass
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return None
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def _read_logs(
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log_files,
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service_colors,
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tail: int,
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since_time: Optional[float],
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until_time: Optional[float],
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timestamps: bool,
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no_color: bool,
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filter_pattern: Optional[str],
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):
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from ..output import console
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import re
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all_lines = []
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for service_name, log_path in log_files:
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try:
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with open(log_path) as f:
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lines = f.readlines()
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# Take last N lines
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lines = lines[-tail:] if tail else lines
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for line in lines:
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line = line.rstrip()
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if not line:
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continue
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if filter_pattern and filter_pattern not in line:
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continue
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line_time = None
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timestamp_match = re.match(r"^(\d{4}-\d{2}-\d{2}[T ]\d{2}:\d{2}:\d{2})", line)
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if timestamp_match:
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try:
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from datetime import datetime
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line_time = datetime.fromisoformat(
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timestamp_match.group(1).replace(" ", "T")
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).timestamp()
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except ValueError:
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pass
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if since_time and line_time and line_time < since_time:
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continue
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if until_time and line_time and line_time > until_time:
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continue
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all_lines.append((line_time or 0, service_name, line))
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except Exception as e:
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console.print(f"[red]Error reading {log_path}: {e}[/red]")
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all_lines.sort(key=lambda x: x[0])
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for _, service_name, line in all_lines:
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if len(log_files) > 1:
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# Multiple services - prefix with service name
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if no_color:
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console.print(f"{service_name} | {line}")
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else:
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color = service_colors.get(service_name, "white")
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console.print(f"[{color}]{service_name}[/{color}] | {line}")
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else:
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console.print(line)
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async def _follow_logs(
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log_files,
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service_colors,
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timestamps: bool,
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no_color: bool,
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filter_pattern: Optional[str],
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):
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from ..output import console
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positions = {}
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for service_name, log_path in log_files:
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if log_path.exists():
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positions[service_name] = log_path.stat().st_size
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else:
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positions[service_name] = 0
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console.print("[dim]Following logs... Press Ctrl+C to stop[/dim]\n")
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try:
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while True:
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for service_name, log_path in log_files:
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if not log_path.exists():
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continue
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current_size = log_path.stat().st_size
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if current_size > positions[service_name]:
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with open(log_path) as f:
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f.seek(positions[service_name])
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new_content = f.read()
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positions[service_name] = f.tell()
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for line in new_content.splitlines():
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if filter_pattern and filter_pattern not in line:
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continue
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if len(log_files) > 1:
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if no_color:
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console.print(f"{service_name} | {line}")
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else:
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color = service_colors.get(service_name, "white")
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console.print(f"[{color}]{service_name}[/{color}] | {line}")
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else:
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console.print(line)
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await asyncio.sleep(0.5)
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except KeyboardInterrupt:
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console.print("\n[dim]Stopped following logs[/dim]")
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