mirror of
https://github.com/SebastianWendel/nixpkgs.git
synced 2024-09-26 23:20:18 +02:00
50954ad1c5
this partially solves the problem of "missing description" warnings of the options doc build being lost by nix build, at the cost of failing builds that previously ran. an option to disable this behaviour is provided.
87 lines
3 KiB
Python
87 lines
3 KiB
Python
import collections
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import json
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import sys
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from typing import Any, Dict, List
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JSON = Dict[str, Any]
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class Key:
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def __init__(self, path: List[str]):
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self.path = path
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def __hash__(self):
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result = 0
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for id in self.path:
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result ^= hash(id)
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return result
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def __eq__(self, other):
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return type(self) is type(other) and self.path == other.path
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Option = collections.namedtuple('Option', ['name', 'value'])
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# pivot a dict of options keyed by their display name to a dict keyed by their path
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def pivot(options: Dict[str, JSON]) -> Dict[Key, Option]:
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result: Dict[Key, Option] = dict()
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for (name, opt) in options.items():
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result[Key(opt['loc'])] = Option(name, opt)
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return result
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# pivot back to indexed-by-full-name
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# like the docbook build we'll just fail if multiple options with differing locs
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# render to the same option name.
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def unpivot(options: Dict[Key, Option]) -> Dict[str, JSON]:
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result: Dict[str, Dict] = dict()
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for (key, opt) in options.items():
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if opt.name in result:
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raise RuntimeError(
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'multiple options with colliding ids found',
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opt.name,
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result[opt.name]['loc'],
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opt.value['loc'],
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)
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result[opt.name] = opt.value
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return result
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warningsAreErrors = sys.argv[1] == "--warnings-are-errors"
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optOffset = 1 if warningsAreErrors else 0
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options = pivot(json.load(open(sys.argv[1 + optOffset], 'r')))
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overrides = pivot(json.load(open(sys.argv[2 + optOffset], 'r')))
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# fix up declaration paths in lazy options, since we don't eval them from a full nixpkgs dir
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for (k, v) in options.items():
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v.value['declarations'] = list(map(lambda s: f'nixos/modules/{s}', v.value['declarations']))
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# merge both descriptions
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for (k, v) in overrides.items():
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cur = options.setdefault(k, v).value
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for (ok, ov) in v.value.items():
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if ok == 'declarations':
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decls = cur[ok]
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for d in ov:
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if d not in decls:
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decls += [d]
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elif ok == "type":
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# ignore types of placeholder options
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if ov != "_unspecified" or cur[ok] == "_unspecified":
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cur[ok] = ov
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elif ov is not None or cur.get(ok, None) is None:
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cur[ok] = ov
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# check that every option has a description
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hasWarnings = False
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for (k, v) in options.items():
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if v.value.get('description', None) is None:
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severity = "error" if warningsAreErrors else "warning"
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hasWarnings = True
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print(f"\x1b[1;31m{severity}: option {v.name} has no description\x1b[0m", file=sys.stderr)
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v.value['description'] = "This option has no description."
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if hasWarnings and warningsAreErrors:
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print(
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"\x1b[1;31m" +
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"Treating warnings as errors. Set documentation.nixos.options.warningsAreErrors " +
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"to false to ignore these warnings." +
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"\x1b[0m",
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file=sys.stderr)
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sys.exit(1)
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json.dump(unpivot(options), fp=sys.stdout)
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