vimeo/psalm support

[MacFJA]

The project https://github.com/vimeo/psalm give good insight about code quality and possible misconception.

It would be great if phpqa have it in its available tools

[MacFJA]

I started to write the code for this feature.

Right now I have some trouble to get the number of errors (I open a PR on vimeo/psalm#206 to solve this)

[zdenekdrahos]

Good job, @MacFJA.

How do you plan to use --analyzedDirs/--ignoredDirs/--ignoredFiles in projectFiles?
I would prefer similar process like in phpstan:

1. load xml config file from .phpqa.yml
2. update projectFiles save a new xml file in --buildDir/psalm-phpqa.xml

BTW you can develop the psalm support even without XML and number of errors. If you use OutputMode::RAW_CONSOLE_OUTPUT then CLI output is used in report.

[MacFJA]

I exactly use what is done on phpstan: If no config is provided in the .phpqa.yml, I generate a config file base on --analyseDirs, --ignoredDirs and --ignoredFiles.

My code is ready, just waiting my PR to be validated ( Here some screenshot of the rendering Report HTML - 1, Report HTML - 2)

[zdenekdrahos]

@MacFJA: the code has been released in version 0.3.55.
I'm already looking forward to a phpqa PR. Screenshots look great!