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Use Commit#notes and Note.for_commit_id when possible to make sure we use all indexes available to us
Closes #34509
See merge request gitlab-org/gitlab-ce!15253
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Rewrite the GitHub importer to perform work in parallel and greatly improve performance
Closes #33135, #38621, and #39361
See merge request gitlab-org/gitlab-ce!14731
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all the indexes available to us
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When deleting merged branches, ignore protected tags
Closes #39732
See merge request gitlab-org/gitlab-ce!15252
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Prior to this MR there were two GitHub related importers:
* Github::Import: the main importer used for GitHub projects
* Gitlab::GithubImport: importer that's somewhat confusingly used for
importing Gitea projects (apparently they have a compatible API)
This MR renames the Gitea importer to Gitlab::LegacyGithubImport and
introduces a new GitHub importer in the Gitlab::GithubImport namespace.
This new GitHub importer uses Sidekiq for importing multiple resources
in parallel, though it also has the ability to import data sequentially
should this be necessary.
The new code is spread across the following directories:
* lib/gitlab/github_import: this directory contains most of the importer
code such as the classes used for importing resources.
* app/workers/gitlab/github_import: this directory contains the Sidekiq
workers, most of which simply use the code from the directory above.
* app/workers/concerns/gitlab/github_import: this directory provides a
few modules that are included in every GitHub importer worker.
== Stages
The import work is divided into separate stages, with each stage
importing a specific set of data. Stages will schedule the work that
needs to be performed, followed by scheduling a job for the
"AdvanceStageWorker" worker. This worker will periodically check if all
work is completed and schedule the next stage if this is the case. If
work is not yet completed this worker will reschedule itself.
Using this approach we don't have to block threads by calling `sleep()`,
as doing so for large projects could block the thread from doing any
work for many hours.
== Retrying Work
Workers will reschedule themselves whenever necessary. For example,
hitting the GitHub API's rate limit will result in jobs rescheduling
themselves. These jobs are not processed until the rate limit has been
reset.
== User Lookups
Part of the importing process involves looking up user details in the
GitHub API so we can map them to GitLab users. The old importer used
an in-memory cache, but this obviously doesn't work when the work is
spread across different threads.
The new importer uses a Redis cache and makes sure we only perform
API/database calls if absolutely necessary. Frequently used keys are
refreshed, and lookup misses are also cached; removing the need for
performing API/database calls if we know we don't have the data we're
looking for.
== Performance & Models
The new importer in various places uses raw INSERT statements (as
generated by `Gitlab::Database.bulk_insert`) instead of using Rails
models. This allows us to bypass any validations and callbacks,
drastically reducing the number of SQL queries and Gitaly RPC calls
necessary to import projects.
To ensure the code produces valid data the corresponding tests check if
the produced rows are valid according to the model validation rules.
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In gitlab-org/gitlab-ce!13251 wildcard Protected Branches were handled
properly when deleting all merged branches. But this fix wasn't that
good. It also checked branch names against Protected Tags. That's not
correct.
This change will **only** check if there is a Protected Branch
matching the merged branch, and ignores Protected Tags.
Closes gitlab-org/gitlab-ce#39732.
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Make sure that every job has a stage assigned
Closes #37979
See merge request gitlab-org/gitlab-ce!14724
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Conflicts:
db/schema.rb
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Refactor Clusters to be consisted from GcpProvider and KubernetesPlatform
See merge request gitlab-org/gitlab-ce!14879
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Refactor issuable destroy action
See merge request gitlab-org/gitlab-ce!15203
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CE repository mirroring changes backport
See merge request gitlab-org/gitlab-ce!15184
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This fixes some bugs related to forked projects of which the source was deleted.
Closes #39667
See merge request gitlab-org/gitlab-ce!15150
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We need to close all merge requests coming from the project within the
entire fork network.
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[CE] Refactor controller calls into services
Closes gitlab-ee#3544
See merge request gitlab-org/gitlab-ce!15023
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Remove Filesystem check metrics that use too much CPU to handle requests
See merge request gitlab-org/gitlab-ce!15158
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Remove Private Tokens
Closes #38595 and #38447
See merge request gitlab-org/gitlab-ce!14838
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controller. Use time_with_zone in schema. Remove Gcp::Clusters from safe_model_attributes.ym
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