On Wed, Jun 24, 2015 at 06:17:35PM +0200, Johannes Holmberg wrote:
----- On 24 Jun, 2015, at 09:14, Martin Kletzander [email protected] wrote:Why don't you just set XMLFILE="$TMPFILE" ? That would get rid of lot of the code changes below and would be more readable.Other than that it looks good.Good question, with a somewhat long answer. I initially did exactly what you suggest, and yes, it makes for simpler code. The only problem with it is that when xmllint finds a problem with the xml, it will output a string on the format "file name:line number: error description". If the file was provided on stdin, the file name will be something like "/tmp/virt-xml.asdf" which will not make much sense to the user. So instead I tried to be consistent: if virt-xml-validate received a filename, xmllint will receive a filename. If virt-xml-validate received data on stdin, xmllint will receive data on stdin. This way, when the xml is provided on stdin and xmllint finds a problem, the file name in the error message will just show up as "-", which is probably more in line with what the user was expecting. Anyway, it's not something I feel super-strongly about, so if you prefer to have it changed, just let me know and I'll have an updated patch for you.
I'm on the edge here. You've got perfectly good point here. If there was at least a way of simplifying each condition somehow. Each such approach pollutes the code with 'eval' or new function that makes it even more unreadable :( Anyway, I'm going into too much unnecessary details. Thanks to your explanation I'm OK with your approach, I would suggest just one teeny tiny change, and that's using 'xmllint - < $file' instead of 'cat $file | xmllint -'. If that's ok with you, just Cc me on the v2 and I'll have a look at it. Thanks, Martin
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