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From "Stefan Hett (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SVN-4660) svn info --show-item=revision produces trailing whitespace
Date Tue, 08 Nov 2016 20:43:58 GMT
Stefan Hett created SVN-4660:
--------------------------------

             Summary: 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


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/browser

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}



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