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LuaFormatter

Reformats your Lua source code.

Build Status (Linux / MacOS) Build status (Windows) codecov

Editor support

Install

LuaRocks

The easiest way to install is to use LuaRocks.

luarocks install --server=https://luarocks.org/dev luaformatter

Build from source

Requirements

  • cmake 3.9+
  • c++ 17 compiler
  • luarocks 3.3.0+

Steps

    git clone --recurse-submodules https://github.com/Koihik/LuaFormatter.git
    cd LuaFormatter
    cmake .
    make
    make install

Usage

  ./lua-format [Lua scripts...] {OPTIONS}

    Reformats your Lua source code.

  OPTIONS:

      -h, --help                             Display this help menu
      -v, --verbose                          Turn on verbose mode
      -i                                     Reformats in-place
      --dump-config                          Dumps the default style used to stdout
      -c[file], --config=[file]              Style config file
      Lua scripts...                         Lua scripts to format
      --column-limit=[column limit]          Column limit of one line
      --indent-width=[indentation
      width]                                 Number of spaces used for indentation
      --tab-width=[tab width]                Number of spaces used per tab
      --continuation-indent-width=[Continuation
      indentation width]                     Indent width for continuations line
      --spaces-before-call=[spaces
      before call]                           Space on function calls
      --column-table-limit=[column
      table limit]                           Column limit of each line of a table
      --table-sep=[table separator]          Character to separate table fields
      This group is all exclusive:
        --use-tab                            Use tab for indentation
        --no-use-tab                         Do not use tab for indentation
      This group is all exclusive:
        --keep-simple-control-block-one-line
                                             keep block in one line
        --no-keep-simple-control-block-one-line
                                             Do not keep block in one line
      This group is all exclusive:
        --keep-simple-function-one-line      keep function in one line
        --no-keep-simple-function-one-line
                                             Do not keep function in one line
      This group is all exclusive:
        --align-args                         Align the arguments
        --no-align-args                      Do not align the arguments
      This group is all exclusive:
        --break-after-functioncall-lp        Break after '(' of function call
        --no-break-after-functioncall-lp     Do not break after '(' of function call
      This group is all exclusive:
        --break-before-functioncall-rp       Break before ')' of function call
        --no-break-before-functioncall-rp    Do not break before ')' of function call
      This group is all exclusive:
        --align-parameter                    Align the parameters
        --no-align-parameter                 Do not align the parameters
      This group is all exclusive:
        --chop-down-parameter                Chop down all parameters
        --no-chop-down-parameter             Do not chop down all parameters
      This group is all exclusive:
        --break-after-functiondef-lp         Break after '(' of function def
        --no-break-after-functiondef-lp      Do not break after '(' of function def
      This group is all exclusive:
        --break-before-functiondef-rp        Break before ')' of function def
        --no-break-before-functiondef-rp     Do not break before ')' of function def
      This group is all exclusive:
        --align-table-field                  Align fields of table
        --no-align-table-field               Do not align fields of table
      This group is all exclusive:
        --break-after-table-lb               Break after '{' of table
        --no-break-after-table-lb            Do not break after '{' of table
      This group is all exclusive:
        --break-before-table-rb              Break before '}' of table
        --no-break-before-table-rb           Do not break before '}' of table
      This group is all exclusive:
        --chop-down-table                    Chop down any table
        --no-chop-down-table                 Do not chop down any table
      This group is all exclusive:
        --chop-down-kv-table                 Chop down table if table contains key
        --no-chop-down-kv-table              Do not chop down table if table contains key
      This group is all exclusive:
        --extra-sep-at-table-end             Add a extra field separator
        --no-extra-sep-at-table-end          Do not add a extra field separator
      This group is all exclusive:
        --break-after-operator               Put break after operators
        --no-break-after-operator            Do not put break after operators
      This group is all exclusive:
        --double-quote-to-single-quote       Transform string literals to use single quote
        --no-double-quote-to-single-quote    Do not transform string literals to use single quote
      This group is all exclusive:
        --single-quote-to-double-quote       Transform string literals to use double quote
        --no-single-quote-to-double-quote    Do not transform string literals to use double quote
      "--" can be used to terminate flag options and force all following
      arguments to be treated as positional options

The program will attempt to automatically use the current directory's .lua-format file if no config file is passed in the command line. If none is found, it will try to locate a .lua-format file in a parent directory recursively. On Linux it will use $XDG_CONFIG_HOME/luaformatter/config.yaml if .lua-format does not exist. In case there's no file, it will fallback to the default configuration. The program will give the top priority to the configuration values given in the command-line, then to the configuration files and finally to the hard-coded default values.

Style configure file

Configuration parameters not specified fallback to their default values.

See this file

Default configuration

column_limit: 80
indent_width: 4
use_tab: false
tab_width: 4
continuation_indent_width: 4
spaces_before_call: 1
keep_simple_control_block_one_line: true
keep_simple_function_one_line: true
align_args: true
break_after_functioncall_lp: false
break_before_functioncall_rp: false
align_parameter: true
chop_down_parameter: false
break_after_functiondef_lp: false
break_before_functiondef_rp: false
align_table_field: true
break_after_table_lb: true
break_before_table_rb: true
chop_down_table: false
chop_down_kv_table: true
table_sep: ","
column_table_limit: column_limit
extra_sep_at_table_end: false
break_after_operator: true
double_quote_to_single_quote: false
single_quote_to_double_quote: false

Limitations

  • Do not work when source file contains syntax error
  • Do not support 'Format selection'

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Code formatter for Lua

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  • CMake 1.2%
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