Git hook management

[azukaar]

Add git hooks for precommit / prepush.

You can either use them thought gupm.json

{ 
  "git": { 
    "hooks": {
      "prepush": "g test $ChangedOrAddedFiles"
    }
  }
}

or with a script git.hooks.prepush.gs or git/hooks/prepush.gs.

• hook should be checked and registered on each command (ex: g make check if hooks are registered)

• alias should received $AllChanges, $ChangedOrAddedFiles, $ChangedFilesOnly, $AddedFiles, and $Deletedfiles as comma separated list

• Script should receive GitChanges
  {
  "filename": "A / D / M" (Added, Deleted or Modified)
  }