amaranth/nmigen/build/run.py

84 lines
2.6 KiB
Python

from collections import OrderedDict
from contextlib import contextmanager
import os
import sys
import subprocess
import tempfile
import zipfile
__all__ = ["BuildPlan", "BuildProducts"]
class BuildPlan:
def __init__(self, script):
self.script = script
self.files = OrderedDict()
def add_file(self, filename, content):
assert isinstance(filename, str) and filename not in self.files
# Just to make sure we don't accidentally overwrite anything.
assert not os.path.normpath(filename).startswith("..")
self.files[filename] = content
def execute(self, root="build", run_script=True):
os.makedirs(root, exist_ok=True)
cwd = os.getcwd()
try:
os.chdir(root)
for filename, content in self.files.items():
dirname = os.path.dirname(filename)
if dirname:
os.makedirs(dirname, exist_ok=True)
mode = "wt" if isinstance(content, str) else "wb"
with open(filename, mode) as f:
f.write(content)
if run_script:
if sys.platform.startswith("win32"):
subprocess.run(["cmd", "/c", "{}.bat".format(self.script)], check=True)
else:
subprocess.run(["sh", "{}.sh".format(self.script)], check=True)
return BuildProducts(os.getcwd())
finally:
os.chdir(cwd)
def archive(self, file):
with zipfile.ZipFile(file, "w") as archive:
# Write archive members in deterministic order and with deterministic timestamp.
for filename in sorted(self.files):
archive.writestr(zipfile.ZipInfo(filename), self.files[filename])
class BuildProducts:
def __init__(self, root):
self._root = root
def get(self, filename, mode="b"):
assert mode in "bt"
with open(os.path.join(self._root, filename), "r" + mode) as f:
return f.read()
@contextmanager
def extract(self, *filenames):
files = []
try:
for filename in filenames:
file = tempfile.NamedTemporaryFile(prefix="nmigen_", suffix="_" + filename)
files.append(file)
file.write(self.get(filename))
if len(files) == 0:
return (yield)
elif len(files) == 1:
return (yield files[0].name)
else:
return (yield [file.name for file in files])
finally:
for file in files:
file.close()