llama-stack-mirror/llama_toolchain/common/exec.py
Ashwin Bharambe e830814399
Introduce Llama stack distributions (#22)
* Add distribution CLI scaffolding

* More progress towards `llama distribution install`

* getting closer to a distro definition, distro install + configure works

* Distribution server now functioning

* read existing configuration, save enums properly

* Remove inference uvicorn server entrypoint and llama inference CLI command

* updated dependency and client model name

* Improved exception handling

* local imports for faster cli

* undo a typo, add a passthrough distribution

* implement full-passthrough in the server

* add safety adapters, configuration handling, server + clients

* cleanup, moving stuff to common, nuke utils

* Add a Path() wrapper at the earliest place

* fixes

* Bring agentic system api to toolchain

Add adapter dependencies and resolve adapters using a topological sort

* refactor to reduce size of `agentic_system`

* move straggler files and fix some important existing bugs

* ApiSurface -> Api

* refactor a method out

* Adapter -> Provider

* Make each inference provider into its own subdirectory

* installation fixes

* Rename Distribution -> DistributionSpec, simplify RemoteProviders

* dict key instead of attr

* update inference config to take model and not model_dir

* Fix passthrough streaming, send headers properly not part of body :facepalm

* update safety to use model sku ids and not model dirs

* Update cli_reference.md

* minor fixes

* add DistributionConfig, fix a bug in model download

* Make install + start scripts do proper configuration automatically

* Update CLI_reference

* Nuke fp8_requirements, fold fbgemm into common requirements

* Update README, add newline between API surface configurations

* Refactor download functionality out of the Command so can be reused

* Add `llama model download` alias for `llama download`

* Show message about checksum file so users can check themselves

* Simpler intro statements

* get ollama working

* Reduce a bunch of dependencies from toolchain

Some improvements to the distribution install script

* Avoid using `conda run` since it buffers everything

* update dependencies and rely on LLAMA_TOOLCHAIN_DIR for dev purposes

* add validation for configuration input

* resort imports

* make optional subclasses default to yes for configuration

* Remove additional_pip_packages; move deps to providers

* for inline make 8b model the default

* Add scripts to MANIFEST

* allow installing from test.pypi.org

* Fix #2 to help with testing packages

* Must install llama-models at that same version first

* fix PIP_ARGS

---------

Co-authored-by: Hardik Shah <hjshah@fb.com>
Co-authored-by: Hardik Shah <hjshah@meta.com>
2024-08-08 13:38:41 -07:00

105 lines
3.1 KiB
Python

# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import errno
import os
import pty
import select
import signal
import subprocess
import sys
import termios
from termcolor import cprint
# run a command in a pseudo-terminal, with interrupt handling,
# useful when you want to run interactive things
def run_with_pty(command):
master, slave = pty.openpty()
old_settings = termios.tcgetattr(sys.stdin)
original_sigint = signal.getsignal(signal.SIGINT)
ctrl_c_pressed = False
def sigint_handler(signum, frame):
nonlocal ctrl_c_pressed
ctrl_c_pressed = True
cprint("\nCtrl-C detected. Aborting...", "white", attrs=["bold"])
try:
# Set up the signal handler
signal.signal(signal.SIGINT, sigint_handler)
new_settings = termios.tcgetattr(sys.stdin)
new_settings[3] = new_settings[3] & ~termios.ECHO # Disable echo
new_settings[3] = new_settings[3] & ~termios.ICANON # Disable canonical mode
termios.tcsetattr(sys.stdin, termios.TCSADRAIN, new_settings)
process = subprocess.Popen(
command,
stdin=slave,
stdout=slave,
stderr=slave,
universal_newlines=True,
preexec_fn=os.setsid,
)
# Close the slave file descriptor as it's now owned by the subprocess
os.close(slave)
def handle_io():
while not ctrl_c_pressed:
try:
rlist, _, _ = select.select([sys.stdin, master], [], [], 0.1)
if sys.stdin in rlist:
data = os.read(sys.stdin.fileno(), 1024)
if not data:
break
os.write(master, data)
if master in rlist:
data = os.read(master, 1024)
if not data:
break
sys.stdout.buffer.write(data)
sys.stdout.flush()
except KeyboardInterrupt:
# This will be raised when Ctrl+C is pressed
break
if process.poll() is not None:
break
handle_io()
except (EOFError, KeyboardInterrupt):
pass
except OSError as e:
if e.errno != errno.EIO:
raise
finally:
# Clean up
termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_settings)
signal.signal(signal.SIGINT, original_sigint)
os.close(master)
if process.poll() is None:
process.terminate()
process.wait()
return process.returncode
def run_command(command):
process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
output, error = process.communicate()
if process.returncode != 0:
print(f"Error: {error.decode('utf-8')}")
sys.exit(1)
return output.decode("utf-8")