Drush is hosed in D8 following /core commit

D8 is unsupported for 4.x. Needs to be fixed in drush5.

This is broke enough that I'd consider a backport however.

Some greps

grep -r include * | grep _ROOT
commands/core/drupal/batch.inc:      include_once DRUPAL_ROOT . '/' . $current_set['file'];
commands/core/drupal/batch.inc:        include_once DRUPAL_ROOT . '/' . $batch_set['file'];
...
tests/userTest.php:    $eval = "require_once DRUPAL_ROOT . '/' . variable_get('password_inc', 'includes/password.inc');";

and

grep -r drush_drupal_major_version *
grep -r drush_drupal_major_version *
commands/core/archive.drush.inc:        if (drush_drupal_major_version() >= 7) {
commands/core/cache.drush.inc:  switch(drush_drupal_major_version()) {
...

makes you wonder what impact changing a directory has.

Fixed in master. See 3d8688c.

The change for contributed commands is to use a new constant, DRUSH_DRUPAL_CORE which points to /core in D8 and Drupal root in D6/D7:

-  require_once drush_get_context('DRUSH_DRUPAL_ROOT') . '/includes/install.inc';
+  require_once DRUSH_DRUPAL_CORE . '/includes/install.inc';

I don't want 4.x to even pretend to support 4 major versions of Drupal at same time. So, no backport.

I think it would be nice to advertise these supported platforms on the project page :-)

we already do: "Note that Drush5+ works with three versions of Drupal (6,7,8). Use Drush 4 for Drupal 5."

@moshe weitzman #5 sorry ... I missed it on the project page ... I checked and it's listed

drush on D8 works ... cool.

Marked #1333790: bootstrap can't find includes/database/select.inc after /core change as duplicate.