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| 1 | +"""Read the target of `sqb rename` and `sqb mv` the way `sqb lineage` reads targets.""" |
| 2 | + |
| 3 | +from __future__ import annotations |
| 4 | + |
| 5 | +from sqlbuild.cli.commands._helpers.lineage.selection import resolve_lineage_target |
| 6 | +from sqlbuild.cli.commands.constants import COLUMN_TARGET_KIND, COLUMN_TARGET_SEPARATOR |
| 7 | +from sqlbuild.cli.commands.exceptions import CliUserError |
| 8 | +from sqlbuild.cli.commands.models import LineageTarget, RefactorCommandRequest |
| 9 | +from sqlbuild.cli.commands.types import CliCommand |
| 10 | +from sqlbuild.compiler.compile.models import CompiledObjectKey |
| 11 | +from sqlbuild.compiler.compile.types import CompiledResourceType |
| 12 | +from sqlbuild.compiler.refactoring.models import RefactorRequest |
| 13 | +from sqlbuild.compiler.refactoring.types import RefactorOperation |
| 14 | + |
| 15 | +_RENAME_USAGE: str = ( |
| 16 | + "write the target as <model> or <model>.<column>; the model: and column: prefixes are optional" |
| 17 | +) |
| 18 | +_MOVE_USAGE: str = "write the target as <model>; the model: prefix is optional" |
| 19 | +_RENAME_SCOPE: str = "sqb rename renames models and model columns" |
| 20 | +_MOVE_SCOPE: str = "sqb mv moves models" |
| 21 | + |
| 22 | + |
| 23 | +def refactor_request_for_target( |
| 24 | + *, request: RefactorCommandRequest, all_keys: dict[str, CompiledObjectKey] |
| 25 | +) -> RefactorRequest: |
| 26 | + """Read a `sqb rename` or `sqb mv` target the way `sqb lineage` reads its targets.""" |
| 27 | + |
| 28 | + raw: str = request.target.strip() |
| 29 | + target: LineageTarget = resolve_lineage_target(all_keys=all_keys, target=raw) |
| 30 | + is_move: bool = request.command == CliCommand.MV |
| 31 | + _check_target(raw=raw, target=target, is_move=is_move) |
| 32 | + model_name: str = target.name.partition(COLUMN_TARGET_SEPARATOR)[0] |
| 33 | + if is_move: |
| 34 | + return RefactorRequest( |
| 35 | + operation=RefactorOperation.MOVE_MODEL, |
| 36 | + model_name=model_name, |
| 37 | + new_name="", |
| 38 | + destination=request.destination or "", |
| 39 | + ) |
| 40 | + new_name: str = (request.new_name or "").strip() |
| 41 | + if target.column_name is None: |
| 42 | + if request.cascade: |
| 43 | + raise CliUserError("--cascade applies to column renames only", code="C954") |
| 44 | + return RefactorRequest( |
| 45 | + operation=RefactorOperation.RENAME_MODEL, |
| 46 | + model_name=model_name, |
| 47 | + new_name=new_name, |
| 48 | + ) |
| 49 | + return RefactorRequest( |
| 50 | + operation=RefactorOperation.RENAME_COLUMN, |
| 51 | + model_name=model_name, |
| 52 | + column_name=target.column_name, |
| 53 | + new_name=new_name, |
| 54 | + cascade=request.cascade, |
| 55 | + ) |
| 56 | + |
| 57 | + |
| 58 | +def _check_target(*, raw: str, target: LineageTarget, is_move: bool) -> None: |
| 59 | + verb: str = "move" if is_move else "rename" |
| 60 | + usage: str = _MOVE_USAGE if is_move else _RENAME_USAGE |
| 61 | + key: CompiledObjectKey | None = target.key |
| 62 | + if not target.name or (target.column_name is not None and not target.column_name): |
| 63 | + raise CliUserError(f"cannot {verb} '{raw}'", code="C954", help=usage) |
| 64 | + if key is not None and key.resource_type != CompiledResourceType.MODEL: |
| 65 | + raise CliUserError( |
| 66 | + f"cannot {verb} '{raw}': {key.name} is a {key.resource_type}; " |
| 67 | + f"{_MOVE_SCOPE if is_move else _RENAME_SCOPE}", |
| 68 | + code="C954", |
| 69 | + help=usage, |
| 70 | + ) |
| 71 | + if key is not None and not target.kind_matches: |
| 72 | + found: str = ( |
| 73 | + f"column: needs <model>.<column>, and {key.name} names a model" |
| 74 | + if target.kind == COLUMN_TARGET_KIND |
| 75 | + else f"{key.name} is a {key.resource_type}, not a {target.kind}" |
| 76 | + ) |
| 77 | + raise CliUserError(f"cannot {verb} '{raw}': {found}", code="C954", help=usage) |
| 78 | + if is_move and target.column_name is not None: |
| 79 | + raise CliUserError( |
| 80 | + f"sqb mv moves models; '{raw}' names a column", |
| 81 | + code="C954", |
| 82 | + help=f"rename a column with sqb rename {target.name} <new_name>", |
| 83 | + ) |
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