[rrd-developers] add/remove DS

[Pascal Gloor]

Hi Tobias and coders,


I'd like to contribute to the project with a new kind of features.  
The ability to add and remove a DS from an rrd file and merge two rrd  
in one.

Before I start anything, please warn me! Let me know if where I could  
get in trouble, which parts could be hard.

The syntax would be:

rrdtool merge <file1 in> <file2 in> [file out] (stdout if omitted)

rrdtool remove <filename> <DS:ds-name>

rrdtool add <filename in> <filename out> <the rest identical to  
rrdcreate>

and perhaps also (as the other features would probably only work with  
the latest version, however, I'm not yet sure about this):

rrdtool upgrade <filename in> [filename out] (stdout if omitted)

which would upgrade the RRD format from older versions to the current  
one.



Regards,
Pascal

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