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Bump NDI to v5 SDK.
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#!/usr/bin/env nix-shell | ||
#! nix-shell -i python -p "python3.withPackages (ps: with ps; [ ps.absl-py ps.requests ])" | ||
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import hashlib | ||
import io | ||
import json | ||
import os.path | ||
import tarfile | ||
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import requests | ||
from absl import app, flags | ||
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BASE_NAME = "Install_NDI_SDK_v5_Linux" | ||
NDI_SDK_URL = f"https://downloads.ndi.tv/SDK/NDI_SDK_Linux/{BASE_NAME}.tar.gz" | ||
NDI_EXEC = f"{BASE_NAME}.sh" | ||
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NDI_ARCHIVE_MAGIC = b"__NDI_ARCHIVE_BEGIN__\n" | ||
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FLAG_out = flags.DEFINE_string("out", None, "Path to read/write version.json from/to.") | ||
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def find_version_json() -> str: | ||
if FLAG_out.value: | ||
return FLAG_out.value | ||
try_paths = ["pkgs/development/libraries/ndi/version.json", "version.json"] | ||
for path in try_paths: | ||
if os.path.exists(path): | ||
return path | ||
raise Exception( | ||
"Couldn't figure out where to write version.json; try specifying --out" | ||
) | ||
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def fetch_tarball() -> bytes: | ||
r = requests.get(NDI_SDK_URL) | ||
r.raise_for_status() | ||
return r.content | ||
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def read_version(tarball: bytes) -> str: | ||
# Find the inner script. | ||
outer_tarfile = tarfile.open(fileobj=io.BytesIO(tarball), mode="r:gz") | ||
eula_script = outer_tarfile.extractfile(NDI_EXEC).read() | ||
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# Now find the archive embedded within the script. | ||
archive_start = eula_script.find(NDI_ARCHIVE_MAGIC) + len(NDI_ARCHIVE_MAGIC) | ||
inner_tarfile = tarfile.open( | ||
fileobj=io.BytesIO(eula_script[archive_start:]), mode="r:gz" | ||
) | ||
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# Now find Version.txt... | ||
version_txt = ( | ||
inner_tarfile.extractfile("NDI SDK for Linux/Version.txt") | ||
.read() | ||
.decode("utf-8") | ||
) | ||
_, _, version = version_txt.strip().partition(" v") | ||
return version | ||
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def main(argv): | ||
tarball = fetch_tarball() | ||
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sha256 = hashlib.sha256(tarball).hexdigest() | ||
version = { | ||
"hash": f"sha256:{sha256}", | ||
"version": read_version(tarball), | ||
} | ||
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out_path = find_version_json() | ||
with open(out_path, "w") as f: | ||
json.dump(version, f) | ||
f.write("\n") | ||
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if __name__ == "__main__": | ||
app.run(main) |
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{"hash": "sha256:24ed671e140ee62ebe96a494b3f0e3a3e5ba005364a0a6ad8ebf89b3494b7644", "version": "5.5.1"} |