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https://issues.apache.org/jira/browse/KUDU-3088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17064591#comment-17064591
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RuiChen commented on KUDU-3088:
-------------------------------
Gerrit patch in [https://gerrit.cloudera.org/#/c/15526/]
> build-if-necessary.sh don't rebuild even if thirdparty directory is changed
> ---------------------------------------------------------------------------
>
> Key: KUDU-3088
> URL: https://issues.apache.org/jira/browse/KUDU-3088
> Project: Kudu
> Issue Type: Bug
> Components: build
> Reporter: RuiChen
> Priority: Minor
>
> I update the thirdparty directory in my forked kudu project, and run
> *build-if-necessary.sh* , it can't know the changes and don't rebuild
> thirdparty libs, I find we use *git ls-tree -d HEAD thirdparty* to check the
> changes in git, it will return HASH of directory "*thirdparty*", but actually
> it will never be updated after the directory is created, even if the subtree
> of directory "thirdparty" have been changed in git.
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