Thanks Attila and Ivan working on this improvement.

IIUC, the major enforced rules of imports are

 <module name="CustomImportOrder">
>             <property name="sortImportsInGroupAlphabetically"
> value="true"/>
>             <property name="separateLineBetweenGroups" value="true"/>
>             <property name="customImportOrderRules"
> value="STATIC###THIRD_PARTY_PACKAGE"/>
>             <property name="tokens" value="IMPORT, STATIC_IMPORT,
> PACKAGE_DEF"/>
>   </module>


"sortImportsInGroupAlphabetically" and "separateLineBetweenGroups" look
straightforward.
"customImportOrderRules" and "tokens", can we have a little explanation of
the rule here?

BTW, I 'm not sure if Intellij has any way to help enforce these rules so
it would be easy to follow them.

Bests,
Sammi

On Mon, 10 Feb 2025 at 17:02, Attila Doroszlai <adorosz...@apache.org>
wrote:

> Hi Ozone developers,
>
> Ivan Zlenko has started working on standardizing license header and
> the order of imports.
>
> The first PR [1] adds the sample header [2], as well as checkstyle
> rules for these two items.  Rules will be initially disabled in all
> submodules.  The plan is to update submodules gradually, one at a
> time, fixing existing files and enabling the rules.
>
> For new files please start using the standard header [2] and import
> order (shown in the PR description), even if the rule is still
> disabled in the specific module.  This will help avoid accidental
> violations if PRs are merged concurrently.
>
> We will help resolve conflicts in open PRs.  Please avoid merging PRs
> with old CI results.
>
> thanks,
> Attila
>
> [1] https://github.com/apache/ozone/pull/7836
> [2]
> https://github.com/apache/ozone/blob/966145d5e869263d53c516d36a0c02e058fd24b9/hadoop-hdds/dev-support/checkstyle/license.header
>
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