416 lines
14 KiB
YAML
416 lines
14 KiB
YAML
# stylish-haskell configuration file
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# ==================================
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# The stylish-haskell tool is mainly configured by specifying steps. These steps
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# are a list, so they have an order, and one specific step may appear more than
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# once (if needed). Each file is processed by these steps in the given order.
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steps:
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# Convert some ASCII sequences to their Unicode equivalents. This is disabled
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# by default.
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# - unicode_syntax:
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# # In order to make this work, we also need to insert the UnicodeSyntax
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# # language pragma. If this flag is set to true, we insert it when it's
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# # not already present. You may want to disable it if you configure
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# # language extensions using some other method than pragmas. Default:
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# # true.
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# add_language_pragma: true
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# Format module header
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#
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# Currently, this option is not configurable and will format all exports and
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# module declarations to minimize diffs
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#
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# - module_header:
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# # How many spaces use for indentation in the module header.
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# indent: 4
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#
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# # Should export lists be sorted? Sorting is only performed within the
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# # export section, as delineated by Haddock comments.
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# sort: true
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#
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# # See `separate_lists` for the `imports` step.
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# separate_lists: true
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#
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# # When to break the "where".
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# # Possible values:
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# # - exports: only break when there is an explicit export list.
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# # - single: only break when the export list counts more than one export.
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# # - inline: only break when the export list is too long. This is
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# # determined by the `columns` setting. Not applicable when the export
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# # list contains comments as newlines will be required.
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# # - always: always break before the "where".
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# break_where: exports
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#
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# # Where to put open bracket
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# # Possible values:
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# # - same_line: put open bracket on the same line as the module name, before the
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# # comment of the module
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# # - next_line: put open bracket on the next line, after module comment
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# open_bracket: next_line
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# Format record definitions. This is disabled by default.
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#
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# You can control the layout of record fields. The only rules that can't be configured
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# are these:
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#
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# - "|" is always aligned with "="
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# - "," in fields is always aligned with "{"
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# - "}" is likewise always aligned with "{"
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#
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# - records:
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# # How to format equals sign between type constructor and data constructor.
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# # Possible values:
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# # - "same_line" -- leave "=" AND data constructor on the same line as the type constructor.
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# # - "indent N" -- insert a new line and N spaces from the beginning of the next line.
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# equals: "indent 2"
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#
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# # How to format first field of each record constructor.
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# # Possible values:
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# # - "same_line" -- "{" and first field goes on the same line as the data constructor.
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# # - "indent N" -- insert a new line and N spaces from the beginning of the data constructor
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# first_field: "indent 2"
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#
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# # How many spaces to insert between the column with "," and the beginning of the comment in the next line.
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# field_comment: 2
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#
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# # How many spaces to insert before "deriving" clause. Deriving clauses are always on separate lines.
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# deriving: 2
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#
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# # How many spaces to insert before "via" clause counted from indentation of deriving clause
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# # Possible values:
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# # - "same_line" -- "via" part goes on the same line as "deriving" keyword.
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# # - "indent N" -- insert a new line and N spaces from the beginning of "deriving" keyword.
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# via: "indent 2"
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#
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# # Sort typeclass names in the "deriving" list alphabetically.
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# sort_deriving: true
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#
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# # Whether or not to break enums onto several lines
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# #
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# # Default: false
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# break_enums: false
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#
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# # Whether or not to break single constructor data types before `=` sign
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# #
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# # Default: true
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# break_single_constructors: true
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#
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# # Whether or not to curry constraints on function.
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# #
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# # E.g: @allValues :: Enum a => Bounded a => Proxy a -> [a]@
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# #
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# # Instead of @allValues :: (Enum a, Bounded a) => Proxy a -> [a]@
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# #
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# # Default: false
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# curried_context: false
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# Align the right hand side of some elements. This is quite conservative
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# and only applies to statements where each element occupies a single
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# line.
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# Possible values:
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# - always - Always align statements.
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# - adjacent - Align statements that are on adjacent lines in groups.
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# - never - Never align statements.
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# All default to always.
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- simple_align:
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cases: always
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top_level_patterns: always
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records: always
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multi_way_if: always
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# Import cleanup
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- imports:
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# There are different ways we can align names and lists.
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#
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# - global: Align the import names and import list throughout the entire
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# file.
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#
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# - file: Like global, but don't add padding when there are no qualified
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# imports in the file.
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#
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# - group: Only align the imports per group (a group is formed by adjacent
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# import lines).
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#
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# - none: Do not perform any alignment.
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#
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# Default: global.
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align: none
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# The following options affect only import list alignment.
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#
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# List align has following options:
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#
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# - after_alias: Import list is aligned with end of import including
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# 'as' and 'hiding' keywords.
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#
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# > import qualified Data.List as List (concat, foldl, foldr, head,
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# > init, last, length)
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#
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# - with_alias: Import list is aligned with start of alias or hiding.
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#
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# > import qualified Data.List as List (concat, foldl, foldr, head,
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# > init, last, length)
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#
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# - with_module_name: Import list is aligned `list_padding` spaces after
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# the module name.
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#
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# > import qualified Data.List as List (concat, foldl, foldr, head,
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# init, last, length)
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#
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# This is mainly intended for use with `pad_module_names: false`.
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#
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# > import qualified Data.List as List (concat, foldl, foldr, head,
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# init, last, length, scanl, scanr, take, drop,
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# sort, nub)
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#
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# - new_line: Import list starts always on new line.
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#
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# > import qualified Data.List as List
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# > (concat, foldl, foldr, head, init, last, length)
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#
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# - repeat: Repeat the module name to align the import list.
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#
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# > import qualified Data.List as List (concat, foldl, foldr, head)
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# > import qualified Data.List as List (init, last, length)
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#
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# Default: after_alias
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list_align: after_alias
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# Right-pad the module names to align imports in a group:
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#
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# - true: a little more readable
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#
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# > import qualified Data.List as List (concat, foldl, foldr,
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# > init, last, length)
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# > import qualified Data.List.Extra as List (concat, foldl, foldr,
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# > init, last, length)
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#
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# - false: diff-safe
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#
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# > import qualified Data.List as List (concat, foldl, foldr, init,
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# > last, length)
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# > import qualified Data.List.Extra as List (concat, foldl, foldr,
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# > init, last, length)
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#
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# Default: true
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pad_module_names: true
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# Long list align style takes effect when import is too long. This is
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# determined by 'columns' setting.
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#
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# - inline: This option will put as much specs on same line as possible.
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#
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# - new_line: Import list will start on new line.
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#
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# - new_line_multiline: Import list will start on new line when it's
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# short enough to fit to single line. Otherwise it'll be multiline.
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#
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# - multiline: One line per import list entry.
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# Type with constructor list acts like single import.
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#
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# > import qualified Data.Map as M
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# > ( empty
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# > , singleton
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# > , ...
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# > , delete
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# > )
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#
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# Default: inline
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long_list_align: inline
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# Align empty list (importing instances)
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#
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# Empty list align has following options
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#
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# - inherit: inherit list_align setting
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#
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# - right_after: () is right after the module name:
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#
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# > import Vector.Instances ()
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#
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# Default: inherit
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empty_list_align: inherit
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# List padding determines indentation of import list on lines after import.
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# This option affects 'long_list_align'.
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#
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# - <integer>: constant value
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#
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# - module_name: align under start of module name.
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# Useful for 'file' and 'group' align settings.
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#
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# Default: 4
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list_padding: 4
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# Separate lists option affects formatting of import list for type
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# or class. The only difference is single space between type and list
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# of constructors, selectors and class functions.
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#
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# - true: There is single space between Foldable type and list of it's
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# functions.
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#
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# > import Data.Foldable (Foldable (fold, foldl, foldMap))
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#
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# - false: There is no space between Foldable type and list of it's
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# functions.
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#
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# > import Data.Foldable (Foldable(fold, foldl, foldMap))
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#
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# Default: true
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separate_lists: true
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# Space surround option affects formatting of import lists on a single
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# line. The only difference is single space after the initial
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# parenthesis and a single space before the terminal parenthesis.
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#
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# - true: There is single space associated with the enclosing
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# parenthesis.
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#
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# > import Data.Foo ( foo )
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#
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# - false: There is no space associated with the enclosing parenthesis
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#
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# > import Data.Foo (foo)
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#
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# Default: false
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space_surround: false
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# Post qualify option moves any qualifies found in import declarations
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# to the end of the declaration. This also adjust padding for any
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# unqualified import declarations.
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#
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# - true: Qualified as <module name> is moved to the end of the
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# declaration.
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#
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# > import Data.Bar
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# > import Data.Foo qualified as F
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#
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# - false: Qualified remains in the default location and unqualified
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# imports are padded to align with qualified imports.
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#
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# > import Data.Bar
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# > import qualified Data.Foo as F
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#
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# Default: false
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post_qualify: false
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# Language pragmas
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- language_pragmas:
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# We can generate different styles of language pragma lists.
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#
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# - vertical: Vertical-spaced language pragmas, one per line.
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#
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# - compact: A more compact style.
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#
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# - compact_line: Similar to compact, but wrap each line with
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# `{-# LANGUAGE #-}'.
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#
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# - vertical_compact: Similar to vertical, but use only one language pragma.
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#
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# Default: vertical.
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style: vertical
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# Align affects alignment of closing pragma brackets.
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#
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# - true: Brackets are aligned in same column.
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#
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# - false: Brackets are not aligned together. There is only one space
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# between actual import and closing bracket.
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#
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# Default: true
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align: true
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# stylish-haskell can detect redundancy of some language pragmas. If this
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# is set to true, it will remove those redundant pragmas. Default: true.
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remove_redundant: true
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# Language prefix to be used for pragma declaration, this allows you to
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# use other options non case-sensitive like "language" or "Language".
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# If a non correct String is provided, it will default to: LANGUAGE.
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language_prefix: LANGUAGE
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# Replace tabs by spaces. This is disabled by default.
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# - tabs:
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# # Number of spaces to use for each tab. Default: 8, as specified by the
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# # Haskell report.
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# spaces: 8
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# Remove trailing whitespace
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- trailing_whitespace: {}
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# Squash multiple spaces between the left and right hand sides of some
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# elements into single spaces. Basically, this undoes the effect of
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# simple_align but is a bit less conservative.
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# - squash: {}
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# A common setting is the number of columns (parts of) code will be wrapped
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# to. Different steps take this into account.
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#
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# Set this to null to disable all line wrapping.
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#
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# Default: 80.
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columns: 80
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# By default, line endings are converted according to the OS. You can override
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# preferred format here.
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#
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# - native: Native newline format. CRLF on Windows, LF on other OSes.
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#
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# - lf: Convert to LF ("\n").
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#
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# - crlf: Convert to CRLF ("\r\n").
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#
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# Default: native.
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newline: native
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# Sometimes, language extensions are specified in a cabal file or from the
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# command line instead of using language pragmas in the file. stylish-haskell
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# needs to be aware of these, so it can parse the file correctly.
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#
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# No language extensions are enabled by default.
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language_extensions:
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- BangPatterns
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- BlockArguments
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- BlockArguments
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- DataKinds
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- DefaultSignatures
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- DeriveDataTypeable
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- DeriveGeneric
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- DerivingVia
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- DisambiguateRecordFields
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- DuplicateRecordFields
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- EmptyDataDeriving
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- FlexibleContexts
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- FlexibleInstances
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- FunctionalDependencies
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- ImplicitParams
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- InstanceSigs
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- LambdaCase
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- MultiParamTypeClasses
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- MultiWayIf
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- MultiWayIf
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- NamedFieldPuns
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- NoImplicitPrelude
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- OverloadedLabels
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- OverloadedStrings
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- PackageImports
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- PartialTypeSignatures
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- PartialTypeSignatures
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- QuasiQuotes
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- Rank2Types
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- RecordWildCards
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- ScopedTypeVariables
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- StandaloneDeriving
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- TemplateHaskell
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- TypeApplications
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- TypeFamilies
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- TypeOperators
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- TypeSynonymInstances
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- UndecidableInstances
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# Attempt to find the cabal file in ancestors of the current directory, and
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# parse options (currently only language extensions) from that.
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#
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# Default: true
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cabal: true
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