This commit introduces the usage of Common Table Expressions (CTEs) to
efficiently retrieve nested group hierarchies, without having to rely on
the "routes" table (which is an _incredibly_ inefficient way of getting
the data). This requires a patch to ActiveRecord (found in the added
initializer) to work properly as ActiveRecord doesn't support WITH
statements properly out of the box.
Unfortunately MySQL provides no efficient way of getting nested groups.
For example, the old routes setup could easily take 5-10 seconds
depending on the amount of "routes" in a database. Providing vastly
different logic for both MySQL and PostgreSQL will negatively impact the
development process. Because of this the various nested groups related
methods return empty relations when used in combination with MySQL.
For project authorizations the logic is split up into two classes:
* Gitlab::ProjectAuthorizations::WithNestedGroups
* Gitlab::ProjectAuthorizations::WithoutNestedGroups
Both classes get the fresh project authorizations (= as they should be
in the "project_authorizations" table), including nested groups if
PostgreSQL is used. The logic of these two classes is quite different
apart from their public interface. This complicates development a bit,
but unfortunately there is no way around this.
This commit also introduces Gitlab::GroupHierarchy. This class can be
used to get the ancestors and descendants of a base relation, or both by
using a UNION. This in turn is used by methods such as:
* Namespace#ancestors
* Namespace#descendants
* User#all_expanded_groups
Again this class relies on CTEs and thus only works on PostgreSQL. The
Namespace methods will return an empty relation when MySQL is used,
while User#all_expanded_groups will return only the groups a user is a
direct member of.
Performance wise the impact is quite large. For example, on GitLab.com
Namespace#descendants used to take around 580 ms to retrieve data for a
particular user. Using CTEs we are able to reduce this down to roughly 1
millisecond, returning the exact same data.
== On The Fly Refreshing
Refreshing of authorizations on the fly (= when
users.authorized_projects_populated was not set) is removed with this
commit. This simplifies the code, and ensures any queries used for
authorizations are not mutated because they are executed in a Rails
scope (e.g. Project.visible_to_user).
This commit includes a migration to schedule refreshing authorizations
for all users, ensuring all of them have their authorizations in place.
Said migration schedules users in batches of 5000, with 5 minutes
between every batch to smear the load around a bit.
== Spec Changes
This commit also introduces some changes to various specs. For example,
some specs for ProjectTeam assumed that creating a personal project
would _not_ lead to the owner having access, which is incorrect. Because
we also no longer refresh authorizations on the fly for new users some
code had to be added to the "empty_project" factory. This chunk of code
ensures that the owner's permissions are refreshed after creating the
project, something that is normally done in Projects::CreateService.
* commit '3a2b60f7a0109cdb84e8727a2625318a746e84dc': (151 commits)
Fixed Karma spec
Reject EE reserved namespace paths in CE as well
Updated webpack config
Include the bundler:audit job into the static-analysis job
Document serializers
Add artifact file page that uses the blob viewer
Pipeline table mini graph dropdown remains open when table is refreshed
Adds off for event hub
Compile gitlab-shell go executables
Allow to create new branch and empty WIP merge request from issue page
Moved to a view spec
Improving copy of CONTRIBUTING.md, PROCESS.md, and code_review.md
Convert seconds to minutes and hours on chat notifations
Disable navigation to Pages config if Pages is disabled
Sort the network graph both by commit date and topographically.
Add tooltips to note action buttons
Add breadcrumb, build header and pipelines submenu to artifacts browser
Update todos screenshots
removes the possibility of commit messages having carriage returns
Handle incoming emails from aliases correctly
...
This new param allows us to share project information between components
that don't share or don't have access to the same filesystem
mountpoints, for example between Gitaly and Rails or between Rails and
Gitlab-Shell hooks. The previous parameters are still supported, but if
found, gl_repository is prefered. The old parameters should be deprecated
once all components support the new format.
+ The statistics parameter was already accepted
* This commit ensure that it is respected for GET /projects/:id endpoint
+ Add documentation of the parameter and update the example response for stats
* master: (103 commits)
Include missing project attributes to Import/Export
Create the rest of the wiki docs
Fill in information about creating the wiki Home page
Move wiki doc to its own index page
Create initial file for Wiki documentation
Default to null user when asignee is unselected
Re-enable ref operations with gitaly after not-found fix
#31560 Add repo parameter to gitaly:install and workhorse:install
Remove N+1 queries when checking nodes visible to user
Don't validate reserved words if the format doesn't match
Revert "Shorten and improve some job names"
Remove unused initializer
DRY the `<<: *except-docs` a bit in `.gitlab-ci.yml`
Make the static-analysis job be run for docs branches too
Add download_snippet_path helper
Refresh the markdown cache if it was `nil`
Add some documentation for the new migration helpers
Update comments
Display comments for personal snippets
Update docs on creating a project
...
* master: (314 commits)
Better Explore Groups view
Update Carrierwave and fog-core
Add specs for Gitlab::RequestProfiler
Add scripts/static-analysis to run all the static analysers in one go
Shorten and improve some job names
Group static-analysis jobs into a single job
Don't blow up when email has no References header
Update CHANGELOG.md for 9.1.2
Add changelog
Add changelog
Show Raw button as Download for binary files
Use blob viewers for snippets
Fix typo
Fixed transient failure related to dropdown animations
Revert "Merge branch 'tc-no-todo-service-select' into 'master'"
fix link to MR 10416
Another change from .click -> .trigger('click') to make spec pass
Change from .click -> .trigger('click') to make spec pass
Disable AddColumnWithDefaultToLargeTable cop for pre-existing migrations
Add AddColumnWithDefaultToLargeTable cop
...
Conflicts:
spec/requests/api/jobs_spec.rb
Jarka Kadlecova
Douwe Maan
Grzegorz Bizon
Stan Hu
Alejandro Rodríguez
Yorick Peterse
Bob Van Landuyt
Gabriel Mazetto
Valery Sizov
Regis Boudinot
Rémy Coutable
blackst0ne
Sam Rose
Kamil Trzcinski
Sean McGivern
Robert Speicher
Mark Fletcher
Shinya Maeda
Robert Speicher
Dmitriy Zaporozhets
mhasbini