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feat(nix/haskell): add stylish-haskell formatter

This commit is contained in:
Dmitriy Pleshevskiy 2022-04-07 17:04:30 +03:00
parent ee8cd68b5c
commit 47ef2bf95f
3 changed files with 402 additions and 10 deletions
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5
.gitignore vendored
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@ -27,3 +27,8 @@
!/programs/xmonad
/programs/xmonad/*
!/programs/xmonad/*.hs
!/programs/stylish-haskell
/programs/stylish-haskell/*
!/programs/stylish-haskell/config.yml

27
nix/home.nix
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@ -41,17 +41,24 @@ in
home.stateVersion = "21.11";
home.packages = with pkgs; [
dmenu # menu for x window system
xmobar # a minimalistic text based status bar
flameshot # powerful yet simple to use screenshot software
# system ui
dmenu # menu for x window system
xmobar # a minimalistic text based status bar
flameshot # powerful yet simple to use screenshot software
xh # friendly and fast tool for sending HTTP requests
fd # a simple, fast and user-friendly alternative to find
bat # a cat clone with syntax highlighting and git integration
# tools
xh # friendly and fast tool for sending HTTP requests
fd # a simple, fast and user-friendly alternative to find
bat # a cat clone with syntax highlighting and git integration
postgresql_12 # 🤷 I need only psql
# haskell
stylish-haskell # formatter
librewolf # a fork of firefox, focused on privacy, security and freedom
# database
postgresql_12 # 🤷 I need only psql
# browser
librewolf # a fork of firefox, focused on privacy, security and freedom
];
home.sessionVariables = {
@ -165,7 +172,7 @@ in
# add config for xmonad window manager
# "xmonad/xmonad.hs".source = ../programs/xmonad/xmonad.hs;
# "xmobar/xmobar.hs".source = ../programs/xmonad/xmobar.hs;
"stylish-haskell/config.yaml".source = ../programs/stylish-haskell/config.yml;
};
}

380
programs/stylish-haskell/config.yml Normal file
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@ -0,0 +1,380 @@
# stylish-haskell configuration file
# ==================================
# The stylish-haskell tool is mainly configured by specifying steps. These steps
# are a list, so they have an order, and one specific step may appear more than
# once (if needed). Each file is processed by these steps in the given order.
steps:
# Convert some ASCII sequences to their Unicode equivalents. This is disabled
# by default.
# - unicode_syntax:
# # In order to make this work, we also need to insert the UnicodeSyntax
# # language pragma. If this flag is set to true, we insert it when it's
# # not already present. You may want to disable it if you configure
# # language extensions using some other method than pragmas. Default:
# # true.
# add_language_pragma: true
# Format module header
#
# Currently, this option is not configurable and will format all exports and
# module declarations to minimize diffs
#
# - module_header:
# # How many spaces use for indentation in the module header.
# indent: 4
#
# # Should export lists be sorted? Sorting is only performed within the
# # export section, as delineated by Haddock comments.
# sort: true
#
# # See `separate_lists` for the `imports` step.
# separate_lists: true
#
# # When to break the "where".
# # Possible values:
# # - exports: only break when there is an explicit export list.
# # - single: only break when the export list counts more than one export.
# # - inline: only break when the export list is too long. This is
# # determined by the `columns` setting. Not applicable when the export
# # list contains comments as newlines will be required.
# # - always: always break before the "where".
# break_where: exports
#
# # Where to put open bracket
# # Possible values:
# # - same_line: put open bracket on the same line as the module name, before the
# # comment of the module
# # - next_line: put open bracket on the next line, after module comment
# open_bracket: next_line
# Format record definitions. This is disabled by default.
#
# You can control the layout of record fields. The only rules that can't be configured
# are these:
#
# - "|" is always aligned with "="
# - "," in fields is always aligned with "{"
# - "}" is likewise always aligned with "{"
#
# - records:
# # How to format equals sign between type constructor and data constructor.
# # Possible values:
# # - "same_line" -- leave "=" AND data constructor on the same line as the type constructor.
# # - "indent N" -- insert a new line and N spaces from the beginning of the next line.
# equals: "indent 2"
#
# # How to format first field of each record constructor.
# # Possible values:
# # - "same_line" -- "{" and first field goes on the same line as the data constructor.
# # - "indent N" -- insert a new line and N spaces from the beginning of the data constructor
# first_field: "indent 2"
#
# # How many spaces to insert between the column with "," and the beginning of the comment in the next line.
# field_comment: 2
#
# # How many spaces to insert before "deriving" clause. Deriving clauses are always on separate lines.
# deriving: 2
#
# # How many spaces to insert before "via" clause counted from indentation of deriving clause
# # Possible values:
# # - "same_line" -- "via" part goes on the same line as "deriving" keyword.
# # - "indent N" -- insert a new line and N spaces from the beginning of "deriving" keyword.
# via: "indent 2"
#
# # Sort typeclass names in the "deriving" list alphabetically.
# sort_deriving: true
#
# # Wheter or not to break enums onto several lines
# #
# # Default: false
# break_enums: false
#
# # Whether or not to break single constructor data types before `=` sign
# #
# # Default: true
# break_single_constructors: true
#
# # Whether or not to curry constraints on function.
# #
# # E.g: @allValues :: Enum a => Bounded a => Proxy a -> [a]@
# #
# # Instead of @allValues :: (Enum a, Bounded a) => Proxy a -> [a]@
# #
# # Default: false
# curried_context: false
# Align the right hand side of some elements. This is quite conservative
# and only applies to statements where each element occupies a single
# line.
# Possible values:
# - always - Always align statements.
# - adjacent - Align statements that are on adjacent lines in groups.
# - never - Never align statements.
# All default to always.
- simple_align:
cases: always
top_level_patterns: always
records: always
multi_way_if: always
# Import cleanup
- imports:
# There are different ways we can align names and lists.
#
# - global: Align the import names and import list throughout the entire
# file.
#
# - file: Like global, but don't add padding when there are no qualified
# imports in the file.
#
# - group: Only align the imports per group (a group is formed by adjacent
# import lines).
#
# - none: Do not perform any alignment.
#
# Default: global.
align: global
# The following options affect only import list alignment.
#
# List align has following options:
#
# - after_alias: Import list is aligned with end of import including
# 'as' and 'hiding' keywords.
#
# > import qualified Data.List as List (concat, foldl, foldr, head,
# > init, last, length)
#
# - with_alias: Import list is aligned with start of alias or hiding.
#
# > import qualified Data.List as List (concat, foldl, foldr, head,
# > init, last, length)
#
# - with_module_name: Import list is aligned `list_padding` spaces after
# the module name.
#
# > import qualified Data.List as List (concat, foldl, foldr, head,
# init, last, length)
#
# This is mainly intended for use with `pad_module_names: false`.
#
# > import qualified Data.List as List (concat, foldl, foldr, head,
# init, last, length, scanl, scanr, take, drop,
# sort, nub)
#
# - new_line: Import list starts always on new line.
#
# > import qualified Data.List as List
# > (concat, foldl, foldr, head, init, last, length)
#
# - repeat: Repeat the module name to align the import list.
#
# > import qualified Data.List as List (concat, foldl, foldr, head)
# > import qualified Data.List as List (init, last, length)
#
# Default: after_alias
list_align: after_alias
# Right-pad the module names to align imports in a group:
#
# - true: a little more readable
#
# > import qualified Data.List as List (concat, foldl, foldr,
# > init, last, length)
# > import qualified Data.List.Extra as List (concat, foldl, foldr,
# > init, last, length)
#
# - false: diff-safe
#
# > import qualified Data.List as List (concat, foldl, foldr, init,
# > last, length)
# > import qualified Data.List.Extra as List (concat, foldl, foldr,
# > init, last, length)
#
# Default: true
pad_module_names: true
# Long list align style takes effect when import is too long. This is
# determined by 'columns' setting.
#
# - inline: This option will put as much specs on same line as possible.
#
# - new_line: Import list will start on new line.
#
# - new_line_multiline: Import list will start on new line when it's
# short enough to fit to single line. Otherwise it'll be multiline.
#
# - multiline: One line per import list entry.
# Type with constructor list acts like single import.
#
# > import qualified Data.Map as M
# > ( empty
# > , singleton
# > , ...
# > , delete
# > )
#
# Default: inline
long_list_align: inline
# Align empty list (importing instances)
#
# Empty list align has following options
#
# - inherit: inherit list_align setting
#
# - right_after: () is right after the module name:
#
# > import Vector.Instances ()
#
# Default: inherit
empty_list_align: inherit
# List padding determines indentation of import list on lines after import.
# This option affects 'long_list_align'.
#
# - <integer>: constant value
#
# - module_name: align under start of module name.
# Useful for 'file' and 'group' align settings.
#
# Default: 4
list_padding: 4
# Separate lists option affects formatting of import list for type
# or class. The only difference is single space between type and list
# of constructors, selectors and class functions.
#
# - true: There is single space between Foldable type and list of it's
# functions.
#
# > import Data.Foldable (Foldable (fold, foldl, foldMap))
#
# - false: There is no space between Foldable type and list of it's
# functions.
#
# > import Data.Foldable (Foldable(fold, foldl, foldMap))
#
# Default: true
separate_lists: true
# Space surround option affects formatting of import lists on a single
# line. The only difference is single space after the initial
# parenthesis and a single space before the terminal parenthesis.
#
# - true: There is single space associated with the enclosing
# parenthesis.
#
# > import Data.Foo ( foo )
#
# - false: There is no space associated with the enclosing parenthesis
#
# > import Data.Foo (foo)
#
# Default: false
space_surround: false
# Post qualify option moves any qualifies found in import declarations
# to the end of the declaration. This also adjust padding for any
# unqualified import declarations.
#
# - true: Qualified as <module name> is moved to the end of the
# declaration.
#
# > import Data.Bar
# > import Data.Foo qualified as F
#
# - false: Qualified remains in the default location and unqualified
# imports are padded to align with qualified imports.
#
# > import Data.Bar
# > import qualified Data.Foo as F
#
# Default: false
post_qualify: false
# Language pragmas
- language_pragmas:
# We can generate different styles of language pragma lists.
#
# - vertical: Vertical-spaced language pragmas, one per line.
#
# - compact: A more compact style.
#
# - compact_line: Similar to compact, but wrap each line with
# `{-# LANGUAGE #-}'.
#
# - vertical_compact: Similar to vertical, but use only one language pragma.
#
# Default: vertical.
style: vertical
# Align affects alignment of closing pragma brackets.
#
# - true: Brackets are aligned in same column.
#
# - false: Brackets are not aligned together. There is only one space
# between actual import and closing bracket.
#
# Default: true
align: true
# stylish-haskell can detect redundancy of some language pragmas. If this
# is set to true, it will remove those redundant pragmas. Default: true.
remove_redundant: true
# Language prefix to be used for pragma declaration, this allows you to
# use other options non case-sensitive like "language" or "Language".
# If a non correct String is provided, it will default to: LANGUAGE.
language_prefix: LANGUAGE
# Replace tabs by spaces. This is disabled by default.
# - tabs:
# # Number of spaces to use for each tab. Default: 8, as specified by the
# # Haskell report.
# spaces: 8
# Remove trailing whitespace
- trailing_whitespace: {}
# Squash multiple spaces between the left and right hand sides of some
# elements into single spaces. Basically, this undoes the effect of
# simple_align but is a bit less conservative.
# - squash: {}
# A common setting is the number of columns (parts of) code will be wrapped
# to. Different steps take this into account.
#
# Set this to null to disable all line wrapping.
#
# Default: 80.
columns: 80
# By default, line endings are converted according to the OS. You can override
# preferred format here.
#
# - native: Native newline format. CRLF on Windows, LF on other OSes.
#
# - lf: Convert to LF ("\n").
#
# - crlf: Convert to CRLF ("\r\n").
#
# Default: native.
newline: native
# Sometimes, language extensions are specified in a cabal file or from the
# command line instead of using language pragmas in the file. stylish-haskell
# needs to be aware of these, so it can parse the file correctly.
#
# No language extensions are enabled by default.
# language_extensions:
# - TemplateHaskell
# - QuasiQuotes
# Attempt to find the cabal file in ancestors of the current directory, and
# parse options (currently only language extensions) from that.
#
# Default: true
cabal: true