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HRoller: allow filtering by node group
Accept the -G option, and if it's passed require that it matches anodegroup, then only output nodes belonging to that group.
Signed-off-by: Guido Trotter <ultrotter@google.com>Reviewed-by: Iustin Pop <iustin@google.com>
HRoller: print only online nodes
To make the graphs work even when instances live on offline nodes (eg.because we're offlining them just to exclude them, or because they haveinstance still on them) we just filter them out at the end, when we'regoing to print out the result....
Rename htools/ to src/
Per offline discussions, this is the first patch of therenames. Tested with "make distcheck", seems to work fine.
The only change outside of the renaming is a bit of simplification inthe .gitignore rules; otherwise, simply s/htools/src/....