Add option reindexallrequired

[seansan]

Add option reindexallrequired
as described here: http://magento.stackexchange.com/questions/3028/permanent-solution-for-the-common-indexing-issue

[bob2021]

I think the condition on line 166 should also check that

count($process->getUnprocessedEventsCollection()) === 0

Without this, indexers would be skipped even if they require a partial update

There are also still cases where an indexer will run even if it is not required - for example if the price indexer requires a re-index then it will also run the stock indexer as it is a dependency. A simple/ugly workaround might be to add this loop at line 164 (untested):

if ($this->getArg('reindexallrequired')) {
    foreach ($processes as $process) {
        if ($process->getStatus() == Mage_Index_Model_Process::STATUS_PENDING && count($process->getUnprocessedEventsCollection()) === 0) {
            $process->setData('runed_reindexall', true);
        }
    }
}

[seansan]

I think the main issue is to allow for a "re-run all" and if some exotic cases are missed this is OK.

• So missing a required re-run is bad and should be caught in this fix
• But if an exotic case exists where a re-run occurs - I personally would be OK with this ...
  Hope it helps

[seansan]

testing the extra condition