Mail Archives: cygwin/2006/08/06/17:38:22
Igor Peshansky wrote:
> As David said, cvs has an easy way of doing this (using "cvs diff" and
> "patch"), which will also deal with local and checked in changes to the
> same file (while your method won't).
>
>
Point taken. I will certainly look into it.
> Did you happen to notice the mention of the "--keep-newer-files" tar
> option in my original reply to you? Just add that to the last "tar", and
> you will only copy the files that were changed in your copy (presumably by
> you) after the checked in version.
>
>
Yeah I saw that reply and I had tried it. There were two problems.
1. New files will not be added to the build directory. It will say
something like
tar: ./Test/res/Test.manifest: Warning: Cannot stat: No such
file or directory
tar: Current `./Test/res/Test.manifest' is newer
and the required manifest file is not copied into the build
folder. So for the initial copy I have to
use it without the --keep-newer-files, and for the subsequent
copies I will have to use the --keep-newer-files.
2. This is the real problem. That is getting an indication whether
none of the files were updated or not. I want to proceed
with the rest of the building script only if more than one files have
been copied. I do not know how to get that using the tar
command. I tried echoing the $? value but it gives 0 all the time. The
source compiler can
detect if the sources were updated or not, on it's own, but
there are a lot of projects in one Visual Studio
Solution (about 60), that I can't wait until all those projects
have been parsed.
I am using
while read amount ; do
if [ ${amount::1} != "0" ]; then
copied=true;
fi
done < copy.log
for that purpose.
> MSDN apparently lies. XCOPY for me returns non-zero on error, and 0 on
> normal execution (no matter how many files were copied).
>
If that is the case, then there is no point in trying to check for the
xcopy return value.
As a short term solution I will stick with my original XCOPY solution.
But I will try to find out
what CVS, Make and the other tools have to offer. If there is a way of
getting if files have been replaced using the
tar command, I will try to implement that into my solution.
Although I am fairly competent at programming in C/C++, this is my first
attempt in writing a serious bash script,
and I must admit that I am both impressed and overwhelmed by it's power. :)
Thank you all for the help offered so far.
Regards
Shane
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