[META] CMI conversions

[jenlampton]

The basic idea of configuration management is that functionality assembled on a development environment should be able to be deployed on a different (staging or production) environment. The configuration should be stored in version-controlled files and stored with code, rather than being mixed with content in the database.

This issue contains the complete list of all conversions to configuration management.

STATES

• [meta] Convert test variables to the state system #163 | 8337955 | Issue #1175054 by msonnabaum, chx, sun, tim.plunkett, arlinsandbulte, beejeebus: Add a storage (API) for persistent non-configuration state.

VARIABLES

• META Convert all variables to CMI #170 | D8: META Convert all variables to CMI
• CMI: Convert Search Settings to Config File #412 | Convert search settings to CMI

SYSTEMS

• Rework the actions system (CMI) #168 | D8: Convert Actions to CMI
• Convert Node/Content types to CMI #171 | D8: Convert Nodes types to CMI
• Convert Text Formats to CMI #172 | D8: Convert Text Formats to CMI
• Convert Contact categories to CMI #173 | D8: Convert Contact categories to CMI
• Convert Vocabularies to CMI #174 | D8: Convert Vocabularies to CMI
• Convert Languages to CMI #175 | D8: Convert Languages to CMI
• Convert Menus to CMI #176 | D8: Convert Menus to CMI
• Convert User roles to CMI #177 | D8: Convert User roles to CMI
• Convert Field API to CMI #178 | D8: Convert Field API to CMI
• Issue #1571632: Convert regional settings to configuration system. backdrop#376 | Convert Date formats to CMI #179 | D8: Convert Date formats to CMI
• Re-merge the CMI branch #2 | D8: Convert Image styles to CMI

POSTPONED CONVERSIONS (for now)

• Implement a drag & drop model for building layouts #86 | D8: Convert block instances to CMI (replaced by layouts)

CMI D8 Issues for review (oldest to newest)

• | #xx | c16a978 | Issue #1497088 by acrollet: Fixed Empty configuration values should return an empty string instead of an empty array.
• | N/A | 08351fa | Issue #1497132 by alexpott, pcambra, marcingy: Provide a generalised function to update variables from Drupal 7 to Drupal 8's configuration management system.
• | N/A | 7be4a6a | Issue #1444766 by acrollet, amateescu: Determine method for automatically cleaning up configuration after a module is uninstalled.
• | N/A | 68eecef | Issue #1497132 by alexpott, pcambra, marcingy: follow-up for generalized function to update variables from Drupal 7 to Drupal 8's configuration management system.
• | N/A | 1a095dd | Issue #1512676 by swentel: Fixed Simpletest doesn't clean up the config directories generated by the configuration .
• | N/A | 86eb32d | Issue #1517138 by marcingy: Fixed Simpletest does not create configuration folder causing test failures.
• | N/A | 7a48959 | Issue #1466092 by webbykat, damiankloip, Bojhan: Fixed Configuration manager is missing module description.
• | N/A | 5e65498 | Issue #1517138 by sun: Follow-up for SimpleTest does not create configuration folder causing test failures.
• | N/A | bb691f6 | Issue #1567812 by sun: Remove 'Verified' from configuration class names.
• | Issue #1493098 by sun, jcisio, pcambra, Pol, wamilton, Rok Žlender, beejeebus: convert cron settings to configuration system. backdrop#341 | 747e01c | Issue #1493098 by jcisio, pcambra, Pol, wamilton, Rok Žlender, beejeebus: Convert cron settings to configuration system.
• | Issue #1496462 by acrollet, sun, cosmicdreams, Niklas Fiekas, aspilicious: convert RSS publishing settings to configuration system. backdrop#344 | 26aaa9f | Issue #1496462 by acrollet, cosmicdreams, Niklas Fiekas | heyrocker: Convert RSS publishing settings to configuration system.
• | N/A | b08c8b4 | Issue #1464944 by heyrocker, alexpott, David_Rothstein, ksenzee: Fixed Installation of configuration system fails in some cases.
• | N/A | 4f50bc1 | Issue #1599554 by sun, dww, effulgentsia: Tutorial/guidelines for how to convert variables into configuration.

For reference, here is the meta issue from drupal.org

[jenlampton]

@quicksketch I just added all the CMI issues we had so far from the D8 backports here for your review.

[docwilmot]

Just to be clear, there is still a boat-load of variable_get() calls in the latest bd; are these all going away? Should someone make a list then?

[quicksketch]

Hi @docwilmot! Yes, we're working to remove all variables, except where we're retrieving them in .install files as part of the upgrade path. I have a PR to convert most of the remaining variables in #170, except language variables, which is a larger and separate task that we should do in #175.

[quicksketch]

Our last item here was text formats in #172. Now with it complete, we have everything we intend to include in configuration for the first release, with upgrade paths from Drupal 7. w00t!

There are number of limitations that we accepted in our config system, so I've made a new meta for CMI in Backdrop 2.x that includes the main features in config management on which we had to compromise.

I'm thrilled with the functionality we'll deliver in our 1.0 release. Even though we haven't solved every possible configuration problem, we're still light years ahead of Drupal 7 + Features module.