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74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
#!/usr/bin/env python3
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#
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# Hacky auto-patcher to update dependencies in examples.
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#
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# Receives a **formatted(!)** build.zig.zon that requires ".url" and ".hash" to be written in that order on different lines.
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#
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import sys
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import json
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from urllib.parse import urlparse, urlunparse
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from urllib.request import urlopen
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from pathlib import Path, PurePosixPath
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import re
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def main():
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build_zig_zon = Path(sys.argv[1])
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assert build_zig_zon.is_file()
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input_lines = build_zig_zon.read_text().splitlines()
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output_lines = []
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last_pkg_url: urllib.parse.ParseResult = None
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for line in input_lines:
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stripped = line.strip()
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if stripped.startswith(".url = \""):
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match = re.match('\s*\.url\s*=\s*"([^"]+)",', line)
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urlstr = match.group(1)
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last_pkg_url = urlparse(urlstr)
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output_lines.append(line)
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elif stripped.startswith(".hash = \""):
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try:
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pkg_path = PurePosixPath(last_pkg_url.path)
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assert pkg_path.suffixes == ['.tar', '.gz']
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pkg_json_url = urlunparse(
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# scheme, netloc, url, params, query, fragment
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(
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last_pkg_url.scheme, # scheme
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last_pkg_url.netloc, # netloc
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pkg_path.with_suffix("").with_suffix(".json").as_posix(), # url
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last_pkg_url.params, # params
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last_pkg_url.query, # query
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last_pkg_url.fragment, # fragment
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)
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)
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metadata = json.loads(urlopen(pkg_json_url).read())
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pkg_hash = metadata["package"]["hash"]
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line_prefix = re.match("^(\s*)", line).group(1)
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output_lines.append(f'{line_prefix}.hash = "{pkg_hash}",')
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last_pkg_url = None
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except BaseException as ex:
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print(ex)
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output_lines.append(line)
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else:
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output_lines.append(line)
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build_zig_zon.write_text("\n".join(output_lines))
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if __name__ == "__main__":
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main() |