[development] Bootstrap Phases

[Jamie Holly]

.info files aren't processed during bootstrap. They only get processed 
during certain actions and special pages, such as flushing caches, 
visiting the modules page, etc. Once it reads the files, it then 
stores/updates the data in the system table. The actual function that 
does this is drupal_parse_info_file, located in common.inc and is most 
commonly called through module_rebuild_cache.

On the theme side a very similar process happens in the 
system_theme_data in system.module. The most common caller for that is 
from dupal_flush_all_caches().

Jamie Holly
http://hollyit.net

On 10/11/2013 11:32 AM, Chris Miller wrote:
> Hi Folks,
>
> Which bootstrap phase has enough environment established that Drupal 
> can now start going through the filesystem looking for *.info files 
> and loading modules?  Does this happen in two steps -- core and 
> contrib?  Or does this happen much later after the bootstrap phases?
>
> I spent some time stepping through bootstrap code yesterday and I was 
> unable to find the meat of the procedure.  Lots of calls to 
> drupal_static which is part of loading the internal, in-memory 
> configuration structures, and even a call to read the database "select 
> * from cache_bootstrap where cid = 'system_list';" (Where is this row 
> constructed and written to the database so bootstrapping can read it?) 
> which has the effect of loading much of $data.
>
> Thanks for the help,
>
> Chris.

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