Check more files to determine if WordPress is present or not

[hbhalodia]

Issue

• wp core download unable to find if wordpress installation already exists in case of missing wp-load.php #164

Description

• If a user has an empty directory and then adds the empty wp-load.php file and runs wp core download, it would throw an error saying WordPress files seem to already be present here. This is only dependent point for this command to identify the WordPress files are present or not.

Solution

• Instead of a single file check, we can modify the command file and can check for multiple file as here - https://gist.github.com/danielbachhuber/9b137817e119321f03b9d09df855b3fb, as per wp core download unable to find if wordpress installation already exists in case of missing wp-load.php #164 (comment) comment as of now we don't require much complex solution so just can check for 3–4 files in directory and notify the user for the same.

Test

• Have run the behat test and all tests pass successfully, I did not exactly know if we required to add the test's because there is already a general test written for this kind of scenario,

  core-command/features/core.feature

  Lines 293 to 302 in e3212a3

  	Scenario: Don't download WordPress when files are already present
  	Given an empty directory
  	And WP files
  	When I try `wp core download`
  	Then STDERR should be:
  	"""
  	Error: WordPress files seem to already be present here.
  	"""
  	And the return code should be 1

Cc: @danielbachhuber

[danielbachhuber]

Have run the behat test and all tests pass successfully, I did not exactly know if we required to add the test's because there is already a general test written for this kind of scenario,

Makes sense, this seems fine.