core: reorder the check

[rleungx]

Signed-off-by: Ryan Leung [email protected]

What problem does this PR solve?

Issue Number: Ref #5648.

What is changed and how does it work?

This PR skips some unnecessary checks and returns GenerateRegionGuideFunc early.

Check List

Tests

• Unit test

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lhy1024
• nolouch

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[codecov]

Codecov Report

Base: 75.55% // Head: 75.65% // Increases project coverage by +0.09% 🎉

Coverage data is based on head (83a8be2) compared to base (b379e26).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5653      +/-   ##
==========================================
+ Coverage   75.55%   75.65%   +0.09%     
==========================================
  Files         330      330              
  Lines       32942    32948       +6     
==========================================
+ Hits        24889    24926      +37     
+ Misses       5899     5878      -21     
+ Partials     2154     2144      -10     

Flag	Coverage Δ
unittests	75.65% <100.00%> (+0.09%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
server/core/region.go	89.98% <100.00%> (+0.08%)	⬆️
server/storage/kv/etcd_kv.go	79.71% <0.00%> (-5.80%)	⬇️
server/region_syncer/server.go	82.96% <0.00%> (-3.30%)	⬇️
server/tso/tso.go	70.22% <0.00%> (-2.25%)	⬇️
server/schedule/operator_controller.go	85.74% <0.00%> (-0.91%)	⬇️
server/statistics/store_collection.go	93.75% <0.00%> (-0.63%)	⬇️
server/cluster/unsafe_recovery_controller.go	78.96% <0.00%> (ø)
server/cluster/coordinator.go	71.78% <0.00%> (+0.18%)	⬆️
server/server.go	75.40% <0.00%> (+0.37%)	⬆️
server/cluster/cluster.go	81.68% <0.00%> (+0.42%)	⬆️
... and 11 more

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[rleungx]

/merge

[ti-chi-bot]

@rleungx: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 12a94d4

[ti-chi-bot]

@rleungx: Your PR was out of date, I have automatically updated it for you.

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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[rleungx]

/hold

[rleungx]

/hold cancel

[rleungx]

/merge

[ti-chi-bot]

@rleungx: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 83a8be2