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#!/usr/bin/env python3
import argparse
import dataclasses
import os
import shutil
import shlex
import subprocess
import sys
import textwrap
from argparse import ArgumentParser, Namespace
from pathlib import Path
_SCRIPT_NAME = Path(sys.argv[0]).name
_SCRIPT_DIR = Path(sys.argv[0]).parent.resolve()
_TOP_LEVEL = Path(
subprocess.check_output(["git", "rev-parse", "--show-toplevel"], text=True).strip()
)
class JqBinResolver:
def __init__(self, parser: ArgumentParser) -> None:
parser.add_argument("--jq-bin", help="jq executable")
def resolve(self, args: Namespace) -> Path:
res_str = args.jq_bin or shutil.which("jq")
if res_str is None:
print(textwrap.dedent("""
jq not found.
Try setting --jq-bin or ensuring it's on your PATH.
On debian, it can be installed with:
apt install jq
"""))
sys.exit(1)
res = Path(res_str)
if not os.access(res, os.X_OK):
print(f"jq resolved to {res}, but it isn't an executable file")
sys.exit(1)
return res
class ChutneyBinResolver:
def __init__(self, parser: ArgumentParser) -> None:
parser.add_argument("--chutney-bin", help="chutney executable")
def resolve(self, args: Namespace) -> Path:
res_str = args.chutney_bin or shutil.which("chutney")
if res_str is None:
print(textwrap.dedent("""
chutney (https://gitlab.torproject.org/tpo/core/chutney) not found.
Try setting --chutney-bin or ensuring it's on your PATH.
quick install:
python3 -m pip install git+https://gitlab.torproject.org/tpo/core/chutney.git
"""))
sys.exit(1)
res = Path(res_str)
if not os.access(res, os.X_OK):
print(f"chutney resolved to {res}, but it isn't an executable file")
sys.exit(1)
return res
class ArtiBinResolver:
def __init__(self, parser: ArgumentParser) -> None:
parser.add_argument("--arti-bin", help="arti executable")
def resolve(self, args: Namespace) -> Path:
res_str = args.arti_bin
if res_str is None:
for s in [
"target/x86_64-unknown-linux-gnu/quicktest/arti",
"target/quicktest/arti",
"target/x86_64-unknown-linux-gnu/debug/arti",
"target/debug/arti",
]:
p = _TOP_LEVEL.joinpath(Path(s))
if p.exists():
res_str = str(p)
break
if res_str is None:
print(textwrap.dedent("""
arti client not found.
Try setting --arti-bin or building one in this repo:
cargo build --locked --profile=quicktest -p arti
"""))
sys.exit(1)
res = Path(res_str)
if not os.access(res, os.X_OK):
print(f"arti resolved to {res}, but it isn't an executable file")
sys.exit(1)
return res
class ArtiBenchBinResolver:
def __init__(self, parser: ArgumentParser) -> None:
parser.add_argument("--arti-bench-bin", help="arti-bench executable")
def resolve(self, args: Namespace) -> Path:
res_str = args.arti_bin
if res_str is None:
for s in [
"target/x86_64-unknown-linux-gnu/release/arti-bench",
"target/release/arti-bench",
"target/x86_64-unknown-linux-gnu/quicktest/arti-bench",
"target/quicktest/arti-bench",
"target/x86_64-unknown-linux-gnu/debug/arti-bench",
"target/debug/arti-bench",
]:
p = _TOP_LEVEL.joinpath(Path(s))
if p.exists():
res_str = str(p)
break
if res_str is None:
print(textwrap.dedent("""
arti-bench not found.
Try setting --arti-bench-bin or building one in this repo:
cargo build --locked --profile=quicktest -p arti-bench
"""))
sys.exit(1)
res = Path(res_str)
if not os.access(res, os.X_OK):
print(f"arti-bench resolved to {res}, but it isn't an executable file")
sys.exit(1)
return res
class ChutneyDataDirResolver:
def __init__(self, parser: ArgumentParser) -> None:
parser.add_argument(
"--chutney-data-dir", help="directory for chutney to put its data"
)
def resolve(self, args: Namespace) -> Path:
return Path(
args.chutney_data_dir or os.getenv("CHUTNEY_DATA_DIR") or os.getcwd()
)
class ChutneyNetworkResolver:
def __init__(self, parser: ArgumentParser) -> None:
parser.add_argument(
"--network", "-n", help="flag to 'chutney init' specifying network to use."
)
def resolve(self, args: Namespace) -> str:
return args.network or "--net-from-script-path=" + str(
_SCRIPT_DIR.joinpath("networks", "arti-ci")
)
@dataclasses.dataclass
class Config:
chutney: Path
arti: Path
arti_bench: Path
jq: Path
chutney_data_dir: Path
network: str
class ConfigResolver:
def __init__(self, parser: ArgumentParser) -> None:
self._jq_resolver = JqBinResolver(parser)
self._chutney_resolver = ChutneyBinResolver(parser)
self._arti_resolver = ArtiBinResolver(parser)
self._arti_bench_resolver = ArtiBenchBinResolver(parser)
self._chutney_data_dir_resolver = ChutneyDataDirResolver(parser)
self._network_resolver = ChutneyNetworkResolver(parser)
def resolve(self, args: Namespace) -> Config:
return Config(
chutney=self._chutney_resolver.resolve(args),
arti=self._arti_resolver.resolve(args),
arti_bench=self._arti_bench_resolver.resolve(args),
jq=self._jq_resolver.resolve(args),
chutney_data_dir=self._chutney_data_dir_resolver.resolve(args),
network=self._network_resolver.resolve(args),
)
def _main() -> None:
# Set up command-line parser, registering config options
parser = argparse.ArgumentParser(
prog=_SCRIPT_NAME, description="Configure a chutney testbed"
)
config_resolver = ConfigResolver(parser)
args = parser.parse_args()
config = config_resolver.resolve(args)
with Path(_SCRIPT_DIR).joinpath("arti.run").open("w") as c:
print(f"target={shlex.quote(config.network)}", file=c)
print(f"jq_bin={shlex.quote(str(config.jq))}", file=c)
print(f"arti_bench_bin={shlex.quote(str(config.arti_bench))}", file=c)
print(f"chutney_bin={shlex.quote(str(config.chutney))}", file=c)
print(f"export CHUTNEY_ARTI={shlex.quote(str(config.arti))}", file=c)
print(
f"export CHUTNEY_DATA_DIR={shlex.quote(str(config.chutney_data_dir))}",
file=c,
)
if __name__ == "__main__":
_main()
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