Output more clear errors

[taoso]

The phpstan output is like bellow

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 ------ ------------------------
  Line   src/Foo.php            
 ------ ------------------------
  9      Undefined variable: $a
 ------ ------------------------

                                                                                                                        
 [ERROR] Found 1 error                                                                                                  
                                                                                                                        

which is awesome for human but ugly for cli app reading from pipe. It's hard to use the phpstan's result for other app like vim-syntastic.

So, I promise to add an new option the make the result output like

src/Foo.php:9  Undefined variable: $a
src/Bar.php:9  Undefined variable: $a

[ondrejmirtes]

I'd rather add some machine-readable format like JSON or XML :)

[greg0ire]

@ondrejmirtes please reconsider, see how it's done for phpcs, for instance : https://github.com/vim-syntastic/syntastic/blob/master/syntax_checkers/php/phpcs.vim#L24
Performance-wise, I think it's better to avoid serialization AND deserialization
The name of the option could be porcelain, like in git status.

[ondrejmirtes]

@greg0ire I want to add support for custom formatters which will allow this :)

[greg0ire]

Glad to hear that!

[codeinabox]

Great. I am a trying to add support in Neomake neomake/neomake#1026 and the author asked the same question

[ondrejmirtes]

@greg0ire @codeinabox @lvht Support for custom errors formatters was added in #185.