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Merge pull request #122 from Bubobubobubobubo/rewrite
This is the big rewrite Sardine truly needed to start on the right track. Many many thanks to @thegamecracks for his invaluable contribution to the project. Now for new features :)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,158 +1,61 @@ | ||
| # https://github.com/python/cpython/blob/main/Lib/asyncio/__main__.py | ||
| # Taken from the CPython Github Repository. Custom version of the | ||
| # asyncio REPL that will autoload Sardine whenever started. | ||
|
|
||
| import concurrent.futures | ||
| import threading | ||
| import platform | ||
| import warnings | ||
| import inspect | ||
| import asyncio | ||
| import psutil | ||
| import types | ||
| import code | ||
| import ast | ||
| import os | ||
|
|
||
| from appdirs import user_data_dir | ||
| from asyncio import futures | ||
| from pathlib import Path | ||
| from rich import print as pretty_print | ||
| from rich.panel import Panel | ||
|
|
||
| system = platform.system() | ||
|
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||
| # Setting very high priority for this process (time-critical) | ||
| warning_text = "[yellow]/!\\\\[/yellow] [red bold] Run Sardine faster by starting it using\ | ||
| \nadministrator priviledges (sudo on Unix..)[/red bold] [yellow]/!\\\\[/yellow]" | ||
| if system == "Windows": | ||
| try: | ||
| p = psutil.Process(os.getpid()) | ||
| p.nice(psutil.HIGH_PRIORITY_CLASS) | ||
| except psutil.AccessDenied: | ||
| pretty_print(Panel.fit(warning_text)) | ||
| pass | ||
| else: | ||
| try: | ||
| p = psutil.Process(os.getpid()) | ||
| p.nice(-20) | ||
| except psutil.AccessDenied: | ||
| pretty_print(Panel.fit(warning_text)) | ||
| pass | ||
|
|
||
|
|
||
| # Appdirs boilerplate | ||
| APP_NAME, APP_AUTHOR = "Sardine", "Bubobubobubo" | ||
| USER_DIR = Path(user_data_dir(APP_NAME, APP_AUTHOR)) | ||
|
|
||
|
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| class AsyncIOInteractiveConsole(code.InteractiveConsole): | ||
| def __init__(self, locals, loop): | ||
| super().__init__(locals) | ||
| self.compile.compiler.flags |= ast.PyCF_ALLOW_TOP_LEVEL_AWAIT | ||
|
|
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| self.loop = loop | ||
|
|
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| def runcode(self, code): | ||
| future = concurrent.futures.Future() | ||
|
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| def callback(): | ||
| global repl_future | ||
| global repl_future_interrupted | ||
|
|
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| repl_future = None | ||
| repl_future_interrupted = False | ||
|
|
||
| func = types.FunctionType(code, self.locals) | ||
| try: | ||
| coro = func() | ||
| except SystemExit: | ||
| raise | ||
| except KeyboardInterrupt as ex: | ||
| repl_future_interrupted = True | ||
| future.set_exception(ex) | ||
| return | ||
| except BaseException as ex: | ||
| future.set_exception(ex) | ||
| return | ||
|
|
||
| if not inspect.iscoroutine(coro): | ||
| future.set_result(coro) | ||
| return | ||
|
|
||
| try: | ||
| repl_future = self.loop.create_task(coro) | ||
| futures._chain_future(repl_future, future) | ||
| except BaseException as exc: | ||
| future.set_exception(exc) | ||
|
|
||
| loop.call_soon_threadsafe(callback) | ||
|
|
||
| try: | ||
| return future.result() | ||
| except SystemExit: | ||
| raise | ||
| except BaseException: | ||
| if repl_future_interrupted: | ||
| self.write("\nKeyboardInterrupt\n") | ||
| else: | ||
| self.showtraceback() | ||
|
|
||
|
|
||
| class REPLThread(threading.Thread): | ||
| def run(self): | ||
| try: | ||
| banner = () | ||
| console.push("""import os""") | ||
| console.push("""os.environ['SARDINE_INIT_SESSION'] = 'YES'""") | ||
| console.push("""from sardine import *""") | ||
| console.interact(banner=banner, exitmsg="exiting asyncio REPL...") | ||
| finally: | ||
| warnings.filterwarnings( | ||
| "ignore", | ||
| message=r"^coroutine .* was never awaited$", | ||
| category=RuntimeWarning, | ||
| ) | ||
|
|
||
| loop.call_soon_threadsafe(loop.stop) | ||
| import click | ||
|
|
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| from . import console | ||
| from .profiler import Profiler | ||
|
|
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| CONTEXT_SETTINGS = { | ||
| "help_option_names": ["-h", "--help"], | ||
| } | ||
|
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|
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| @click.group( | ||
| context_settings=CONTEXT_SETTINGS, | ||
| help="Starts sardine in an asyncio REPL.", | ||
| invoke_without_command=True, | ||
| ) | ||
| @click.version_option( | ||
| package_name="sardine", | ||
| prog_name=__package__, | ||
| message="%(prog)s for %(package)s v%(version)s", | ||
| ) | ||
| @click.pass_context | ||
| def main(ctx: click.Context): | ||
| if ctx.invoked_subcommand is None: | ||
| console.start() | ||
|
|
||
|
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| @main.command( | ||
| short_help="Run sardine with a background profiler (requires the yappi package)", | ||
| help=""" | ||
| This command starts the deterministic profiler, yappi, and measures statistics | ||
| for both sardine and any functions written in the console. Once the REPL | ||
| is closed, a pstats file will be written containing the session's stats. | ||
| You can inspect the file's contents with Python's built-in pstats module | ||
| or a third-party package like snakeviz. | ||
| """, | ||
| ) | ||
| @click.option( | ||
| "-c", | ||
| "--clock", | ||
| default="wall", | ||
| help="The clock type to use. Wall time includes time spent waiting, " | ||
| "while CPU time ignores it.", | ||
| show_default=True, | ||
| type=click.Choice(("cpu", "wall"), case_sensitive=False), | ||
| ) | ||
| @click.option( | ||
| "-o", | ||
| "filepath", | ||
| default="stats.prof", | ||
| help="The path to use when outputting the pstats file", | ||
| show_default=True, | ||
| type=click.Path(dir_okay=False, writable=True), | ||
| ) | ||
| def profile(clock: str, filepath: str): | ||
| profiler = Profiler(clock=clock, filepath=filepath) | ||
| with profiler: | ||
| console.start() | ||
|
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|
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| if __name__ == "__main__": | ||
| loop = asyncio.new_event_loop() | ||
| asyncio.set_event_loop(loop) | ||
|
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| repl_locals = {"asyncio": asyncio} | ||
| for key in { | ||
| "__name__", | ||
| "__package__", | ||
| "__loader__", | ||
| "__spec__", | ||
| "__builtins__", | ||
| "__file__", | ||
| }: | ||
| repl_locals[key] = locals()[key] | ||
|
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| console = AsyncIOInteractiveConsole(repl_locals, loop) | ||
|
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| repl_future = None | ||
| repl_future_interrupted = False | ||
|
|
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| try: | ||
| import readline # NoQA | ||
| except ImportError: | ||
| pass | ||
|
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| repl_thread = REPLThread() | ||
| repl_thread.daemon = True | ||
| repl_thread.start() | ||
|
|
||
| while True: | ||
| try: | ||
| loop.run_forever() | ||
| except KeyboardInterrupt: | ||
| if repl_future and not repl_future.done(): | ||
| repl_future.cancel() | ||
| repl_future_interrupted = True | ||
| continue | ||
| else: | ||
| break | ||
| main() |
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