gcubed.baseline_shl_migration

Stage and atomically migrate generated baseline SHL projections.

The operation constructs a model only in a disposable copy. It promotes the validated SHL block and leaves every other canonical model file untouched.

@dataclass(frozen=True)

class BaselineShlMigrationResult:

Describe one successfully promoted SHL baseline block.

BaselineShlMigrationResult( baseline_file: pathlib.Path, shl_rows: int, projection_years: tuple[str, ...], staged_input_hashes: dict[str, str])

baseline_file: pathlib.Path

shl_rows: int

projection_years: tuple[str, ...]

staged_input_hashes: dict[str, str]

def migrate_baseline_shl( configuration_file: pathlib.Path) -> BaselineShlMigrationResult:

Generate SHL in a disposable model copy and promote only that block.

The explicit generation call makes this independent of the destination's preserve_baseline_exogenous_projections_file setting. Any regenerated labour-productivity file must remain byte-identical to the canonical input copied into staging, preventing promotion from temporary inputs that would be discarded.

def main(argv: Sequence[str] | None = None) -> int:

Run one explicit staged baseline SHL migration.