r00takaspin

Mix format only changed lines

How to format only changed lines by mix format? How to integrate it with git?

1 comment

#mix #formatter

1 1506 1

2018-03-29 12:15:08 UTC

Most Liked

ctrlshiftbryan

This is not an option. Mix format wants to format the entire file passed to it. I also don’t think it ever will be added as the whole point is to add consistency.

They do offer nice options for integrating with git.

You will need to write a CI script that manually invokes mix format with the files in your git dif.

github.com

elixir-lang/elixir/blob/master/lib/mix/lib/mix/tasks/format.ex#L25




The formatter will read a `.formatter.exs` in the current directory for
formatter configuration. Evaluating this file should return a keyword list.


Here is an example `.formatter.exs` that works as a starting point:


    [
      inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
    ]


Besides the options listed in `Code.format_string!/2`, the `.formatter.exs`
supports the following options:


  * `:inputs` (a list of paths and patterns) - specifies the default inputs
    to be used by this task. For example, `["mix.exs", "{config,lib,test}/**/*.{ex,exs}"]`.
    Patterns are expanded with `Path.wildcard/2`.


  * `:subdirectories` (a list of paths and patterns) - specifies subdirectories
    that have their own formatting rules. Each subdirectory should have a
    `.formatter.exs` that configures how entries in that subdirectory should be
    formatted as. Configuration between `.formatter.exs` are not shared nor

and

github.com

elixir-lang/elixir/blob/e9dfa50c74488000d2c9de71e926cdd78609b3ac/lib/elixir/lib/code.ex#L243


  {value, binding}
end


@doc ~S"""
Formats the given code `string`.


The formatter receives a string representing Elixir code and
returns iodata representing the formatted code according to
pre-defined rules.


## Options


  * `:file` - the file which contains the string, used for error
    reporting


  * `:line` - the line the string starts, used for error reporting


  * `:line_length` - the line length to aim for when formatting
    the document. Defaults to 98.


  * `:locals_without_parens` - a keyword list of name and arity

The only real options right now are line_length and locals_without_parens

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Mix format only changed lines

r00takaspin

Mix format only changed lines

Most Liked

ctrlshiftbryan

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