Guntis Ozols wrote:
> > I think move and copy tasks should be enhanced with
> > overwrite-if-filesmatch boolean attribute.
> > If set to false and source and target files match,
> > target file modification time should be left unchanged.
> > This way, long rebuilds triggered by small files can be avoided.
> >
> > What do you think? Will somebody else need it, not just me?
> > I can implement this.
Steve Loughran wrote:
> I'd file this under WORKSFORME.
> If you actually want a byte-for-byte comparision, copy a <fileset> with
> a nested <different> selector. Note that this gets very slow when there
> are lots of files to copy that havent changed, because ant still has to
> read every single byte to make sure.
This attribute BELONGS to copy.
It represents the most basic relation between files.
Yes, I actually want byte-for-byte comparison, reasons above.
Please compare:
<move overwrite-if-filesmatch="false"
file="long-dirname/long-filename-latest.xml"
tofile="long-dirname/long-filename.xml"/>
with (tested on 1.7):
<copy todir="long-dirname">
<fileset file="long-dirname/long-filename-latest.xml">
<different targetdir="long-dirname">
<mapper type="glob" from="*-latest.xml" to="*.xml"/>
</different>
</fileset>
<globmapper from="*-latest.xml" to="*.xml"/>
</copy>
<delete file="long-dirname/long-filename-latest.xml"/>
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