sapling/eden/cli/buck.py
Andres Suarez fbdb46f5cb Tidy up license headers
Reviewed By: chadaustin

Differential Revision: D17872966

fbshipit-source-id: cd60a364a2146f0dadbeca693b1d4a5d7c97ff63
2019-10-11 05:28:23 -07:00

80 lines
2.7 KiB
Python

#!/usr/bin/env python3
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2.
import errno
import glob
import os
import subprocess
from typing import List
def find_buck_projects_in_repo(path: str) -> List[str]:
# This is a largely Facebook specific way to discover the likely
# buck project locations in our repos.
# While fbsource has a top level buckconfig, we don't really use
# it in our projects today. Instead, our projects tend to have
# their own configuration files one level down. This glob()
# finds those directories for us.
buck_configs = glob.glob(f"{path}/*/.buckconfig")
projects = [os.path.dirname(config) for config in buck_configs]
if os.path.isfile(f"{path}/.buckconfig"):
projects.append(path)
return projects
def is_buckd_running_for_path(path: str) -> bool:
pid_file = os.path.join(path, ".buckd", "pid")
try:
with open(pid_file, "r") as f:
buckd_pid = int(f.read().strip())
except OSError as exc:
if exc.errno == errno.ENOENT:
return False
raise
# Test whether that pid is still alive
try:
os.kill(buckd_pid, 0)
return True
except OSError:
return False
def stop_buckd_for_path(path: str) -> None:
print(f"Stopping buck in {path}...")
subprocess.run(
# Using BUCKVERSION=last here to avoid triggering a download
# of a new version of buck just to kill off buck.
# This is specific to Facebook's deployment of buck, and has
# no impact on the behavior of the opensource buck executable.
["env", "BUCKVERSION=last", "buck", "kill"],
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL,
cwd=path,
)
def stop_buckd_for_repo(path: str) -> None:
"""Stop the major buckd instances that are likely to be running for path"""
for project in find_buck_projects_in_repo(path):
if is_buckd_running_for_path(project):
stop_buckd_for_path(project)
def buck_clean_repo(path: str) -> None:
for project in find_buck_projects_in_repo(path):
print(f"Cleaning buck in {project}...")
subprocess.run(
# Using BUCKVERSION=last here to avoid triggering a download
# of a new version of buck just to remove some dirs
# This is specific to Facebook's deployment of buck, and has
# no impact on the behavior of the opensource buck executable.
["env", "NO_BUCKD=true", "BUCKVERSION=last", "buck", "clean"],
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL,
cwd=project,
)