Support create/alter warehouse (#320)

* refactor: organize rules into separate files

* refactor: rename FUNCTION ruleset

* feat close #312, #299: support create/alter warehouse

* chore: update primer refs, changelog

CHANGELOG.md

@@ -8,6 +8,7 @@ All notable changes to this project will be documented in this file.
 
 -   sqlfmt now supports `{% materialization ... %}` and `{% call statement(...) %}` blocks ([#309](https://github.com/tconbeer/sqlfmt/issues/309)).
 -   sqlfmt now resets the SQL depth of a query after encountering an `{% endmacro %}`, `{% endtest %}`, `{% endcall %}`, or `{% endmaterialization %}` tag.
+-   sqlfmt now supports `CREATE WAREHOUSE` and `ALTER WAREHOUSE` statements ([#312](https://github.com/tconbeer/sqlfmt/issues/312), [#299](https://github.com/tconbeer/sqlfmt/issues/312))
 -   fixed a bug where we could have unsafely run *black* against jinja that contained Python keywords and their safe alternatives (e.g., `return(return_())`).
 
 ## [0.13.0] - 2022-11-01

src/sqlfmt/actions.py

@@ -9,11 +9,11 @@
 )
 from sqlfmt.line import Line
 from sqlfmt.node import Node, get_previous_token
+from sqlfmt.rule import MAYBE_WHITESPACES, Rule
 from sqlfmt.token import Token, TokenType
 
 if TYPE_CHECKING:
     from sqlfmt.analyzer import Analyzer
-    from sqlfmt.rule import Rule
 
 
 def group(*choices: str) -> str:
@@ -23,9 +23,6 @@ def group(*choices: str) -> str:
     return f"({'|'.join(choices)})"
 
 
-MAYBE_WHITESPACES: str = r"[^\S\n]*"  # any whitespace except newline
-
-
 def raise_sqlfmt_bracket_error(
     _: "Analyzer", source_string: str, match: re.Match
 ) -> None:

src/sqlfmt/dialect.py

@@ -3,7 +3,8 @@
 
 from sqlfmt.analyzer import Analyzer
 from sqlfmt.node_manager import NodeManager
-from sqlfmt.rule import MAIN, Rule
+from sqlfmt.rule import Rule
+from sqlfmt.rules import MAIN
 
 
 class Dialect(ABC):