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From "Stefan Hett (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (SVN-4660) svn info --show-item=revision produces trailing whitespace
Date Sun, 13 Nov 2016 12:56:58 GMT

    [ https://issues.apache.org/jira/browse/SVN-4660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15661348#comment-15661348
] 

Stefan Hett edited comment on SVN-4660 at 11/13/16 12:56 PM:
-------------------------------------------------------------

Fixed by danielsh on trunk in r1769456.
Nominated for backport to 1.9.


was (Author: luke1410):
Fixed by danielsh on trunk in r1769456.

> svn info --show-item=revision produces trailing whitespace
> ----------------------------------------------------------
>
>                 Key: SVN-4660
>                 URL: https://issues.apache.org/jira/browse/SVN-4660
>             Project: Subversion
>          Issue Type: Bug
>          Components: cmdline client
>    Affects Versions: 1.9.4
>            Reporter: Stefan Hett
>             Fix For: 1.10.0
>
>
> Steps to reproduce:
> 1. Run svn info --show-item=revision >out.txt
> Expected result:
> The file out.txt contains just the revision number and a newline.
> Actual result:
> The file out.txt contains the revision number, followed by some whitespaces and a newline.
> The issue was passed on to the dev list here: http://mail-archives.apache.org/mod_mbox/subversion-dev/201610.mbox/%3C20161028184002.GA25363%40fujitsu.shahaf.local2%3E
> Rational for this being a bug/unintended behavior:
> 1. One (if not the) main use-case for the newly introduced --show-item option is to make
it easier to be used in scripts. For revisions, I used that to generate a revision range as
in: -rXXX:YYY. XXX was retrieved using --show-item=revision. Since that produced unexpected
trailing whitespaces the script command resulted in [...] -rXXX   :YYY [...] which obviously
caused an error message which was hard to debug since I didn't immediately get the idea that
the trailing whitespaces might cause the script error I saw.
> 2. It's not what the documentation in the release notes state:
> https://subversion.apache.org/docs/release-notes/1.9.html#svn-info-item
> where it's explicitly shown that the reported revision number does not have any trailing
whitespace:
> {noformat}
> ## Display the youngest revision of a repository:
> % svn info --show-item=revision https://svn.apache.org/repos/asf/subversion/trunk
> 1693514
> ## Find the root directory of a working copy:
> % svn info --show-item=wc-root
> /home/jrandom/src/svn/trunk
> {noformat}
> Note: The issue was not present in SVN < 1.9, since the --show-item-option was added
in SVN 1.9.0. Also I only tested it explicitly with SVN 1.9.4 but since the code change was
introduced in 1.9.0 I'm quite certain the behavior exists in SVN 1.9.0-1.9.3 as well.



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