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#!/usr/bin/python
import os
import sys
import argparse
import subprocess
if __name__ == "__main__":
DEFAULT_PARTICLES_DIR = "/particles"
PARTICLES_DIR = os.getenv("PARTICLES_DIR", DEFAULT_PARTICLES_DIR)
DEFAULT_BUILD_DIR = "/kogaion"
BUILD_DIR = os.getenv("BUILD_GIT_DIR", DEFAULT_BUILD_DIR)
DEFAULT_MATTER_ARGS = "--commit --gentle --push --sync --sync-best-effort"
MATTER_ARGS = os.getenv("MATTER_ARGS", DEFAULT_MATTER_ARGS)
CHROOT_SCRIPT = "/kogaion/bin/matter-scheduler-chroot" # this is in build.git
ENV_VARS_HELP = """\
Environment variables:
%s = path inside chroot containing Matter spec files (also called particles)
default: %s
%s = path inside chroot containing the build.git repository checkout
default: %s
%s = custom "matter" arguments
default: %s
""" % (
"PARTICLES_DIR",
DEFAULT_PARTICLES_DIR,
"BUILD_GIT_DIR",
DEFAULT_BUILD_DIR,
"MATTER_ARGS",
DEFAULT_MATTER_ARGS,)
parser = argparse.ArgumentParser(
description='Entropy Matter, execution scheduler',
epilog=ENV_VARS_HELP,
formatter_class=argparse.RawDescriptionHelpFormatter)
parser.add_argument("chroot", metavar="<chroot>",
help="path to chroot")
nsargs = parser.parse_args(sys.argv[1:])
chroot_dir = nsargs.chroot
if not os.path.isdir(chroot_dir):
sys.stderr.write("chroot directory is not available\n")
raise SystemExit(1)
if os.getuid() != 0:
sys.stderr.write("root access required\n")
raise SystemExit(1)
os.environ["PARTICLES_DIR"] = PARTICLES_DIR
os.environ["BUILD_GIT_DIR"] = BUILD_DIR
os.environ["MATTER_ARGS"] = MATTER_ARGS
os.chroot(chroot_dir)
os.chdir("/")
try:
rc = subprocess.call(CHROOT_SCRIPT)
except Exception as err:
sys.stderr.write(repr(err) + "\n")
rc = 1
raise SystemExit(rc)
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