hydra.build.langexpansion module

Pure language/host list-expansion utilities shared by the sync/test/bench drivers.

hydra.build.langexpansion.expand_lang_alias(tok: str) → Sequence[str]

Expand a single language token: ‘all’ -> all languages, ‘lisp’ -> the dialects, else itself.

hydra.build.langexpansion.expand_langs(toks: Sequence[str]) → Sequence[str]

Expand a list of language tokens (aliases resolved), preserving order, deduped.

hydra.build.langexpansion.is_known_lang(lang: str) → bool

Whether a language token is a known target language.

hydra.build.langexpansion.lang_union(hosts: Sequence[str], targets: Sequence[str]) → Sequence[str]

The expanded, deduped union of two token lists (hosts + targets).

hydra.build.langexpansion.validate_langs(toks: Sequence[str]) → Sequence[str]

Validate a token list; return the unknown expanded tokens (empty = all valid).