forked from mirrors/gecko-dev
9696a1e8d2
At the same time, make the pack.sh script more verbose. Differential Revision: https://phabricator.services.mozilla.com/D167769
63 lines
2 KiB
Python
63 lines
2 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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import hashlib
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import os
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import shutil
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import stat
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import sys
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import tempfile
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from urllib.request import urlopen
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from mozpack.macpkg import Pbzx, uncpio, unxar
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def unpack_sdk(url, sha256, extract_prefix, out_dir="."):
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with tempfile.TemporaryFile() as pkg:
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hash = hashlib.sha256()
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with urlopen(url) as fh:
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# Equivalent to shutil.copyfileobj, but computes sha256 at the same time.
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while True:
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buf = fh.read(1024 * 1024)
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if not buf:
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break
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hash.update(buf)
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pkg.write(buf)
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digest = hash.hexdigest()
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if digest != sha256:
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raise Exception(f"(actual) {digest} != (expected) {sha256}")
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pkg.seek(0, os.SEEK_SET)
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for name, content in unxar(pkg):
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if name == "Payload":
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extract_payload(content, extract_prefix, out_dir)
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def extract_payload(fileobj, extract_prefix, out_dir="."):
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for path, mode, content in uncpio(Pbzx(fileobj)):
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if not path:
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continue
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path = path.decode()
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if not path.startswith(extract_prefix):
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continue
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path = os.path.join(out_dir, path[len(extract_prefix) :].lstrip("/"))
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if stat.S_ISDIR(mode):
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os.makedirs(path, exist_ok=True)
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else:
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parent = os.path.dirname(path)
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if parent:
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os.makedirs(parent, exist_ok=True)
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if stat.S_ISLNK(mode):
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os.symlink(content.read(), path)
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elif stat.S_ISREG(mode):
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with open(path, "wb") as out:
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shutil.copyfileobj(content, out)
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else:
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raise Exception(f"File mode {mode:o} is not supported")
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if __name__ == "__main__":
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unpack_sdk(*sys.argv[1:])
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