On Tue, 2008-08-26 at 08:53 -0400, Michael DeHaan wrote:
> Luca Lesinigo wrote:
> > Included a patch that will add support for a "df" method to the
> > "mount" minion module. It does what its name suggests :D
> >
> > Return data is a dict: { 'mountpoint': [total_space, free_space,
> > device, fs_type] }
> >
> > I found out the hard way that XML-RPC doesn't like integers bigger
> > than 32bit, so the space is reported in 1KiB units. This gives us a
> > maximum fs size of 4TiB, which is rather small.
>
> I'm unaware of that problem. Interesting. Perhaps you should use floats.
> >
> > I never used XML-RPC directly nor touched func's implementation, but I
> > suspect there's a way to use 64bit values. At least it's there in the
> > C library xmlrpc-c, which I found out using it with rtorrent :D
> >
> > vm1 ~ # func vm2 call mount df
> > {'vm2': {'/': [8256952, 6511760, '/dev/root', 'ext3'],
> > '/dev': [10240, 10188, 'udev', 'tmpfs'],
> > '/dev/shm': [262200, 262200, 'shm', 'tmpfs']}}
> >
> >
> > ------------------------------------------------------------------------
> >
> >
> > PS, anyone knows why I get single characters if I do "for line in
> > openedfile.readline()" ?
> > I had to use file.readlines() [notice the last 's'].
>
> readline returns a string, which is iterable. A for loop on a string
> iterates through the characters in the string.
>
> What you are asking is closer to:
>
> while True:
> x = f.readline()
> if not x:
> break
> ...
>
> Though unless you are dealing with very large files there's not much
> reason to do this, and reading things entirely into memory is sufficient.
>
> That all being said, Func modules should not be parsing shell commands
> unless it's a last resort, when it's possible to get data through other
> libraries, they should use those libraries, and when they can use proc,
> they should. Parsing shell commands can be rather fragile.
Not to mention dangerous. IIRC googling 'python df' will return a number
of functional examples.
-sv
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