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https://issues.apache.org/jira/browse/SVN-4622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18047521#comment-18047521
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Daniel Sahlberg commented on SVN-4622:
--------------------------------------
An initial try was committed in r1915215 but after discussion during the
release process of 1.15 it was decided to revert.
> revert as root always notifies for files
> ----------------------------------------
>
> Key: SVN-4622
> URL: https://issues.apache.org/jira/browse/SVN-4622
> Project: Subversion
> Issue Type: Bug
> Components: libsvn_subr
> Affects Versions: all
> Reporter: Philip Martin
> Priority: Minor
>
> $ svnadmin create repo
> $ svn import -mm repo/format file://`pwd`/repo/f
> $ umask 0022
> $ svn co file://`pwd`/repo wc
> $ sudo svn revert wc/f
> Reverted 'wc/f'
> The function svn_io__is_finfo_read_only() will check the world permissions
> when invoked with uid=root. A typical umask removes world write so this means
> that root sees every file as read-only. This causes the revert code to invoke
> svn_io_set_file_read_write() and notify. However svn_io_set_file_read_write()
> sets the owner permissions, an operation that succeeds when run as root, and
> obeys the umask so the world permissions remain read-only.
> Reported by:
> https://mail-archives.apache.org/mod_mbox/subversion-users/201602.mbox/%3C56C0738E.9010508%40i.ua%3E
> http://svn.haxx.se/users/archive-2016-02/0061.shtml
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