Provide function to get system disk partitions

[giampaolo]

From g.rodola on June 15, 2011 11:07:41

In issue 172 we added psutil.disk_usage() function which provides disk usage 
statistics starting from a given path.
What's missing is a facility to get all system partitions (mount points) to be 
used in conjunction with psutil.disk_usage() which would provide all the pieces 
to perform a complete monitoring of all disks instealled on the system.

What I have in mind:

>>> psutil.disk_partitions()
[partition(device='/dev/sda3', mountpoint='/', fstype='ext4')
partition(device='/dev/sda7', mountpoint='/home', fstype='ext4')
partition(device='/dev/sdb1', mountpoint='/media/1CA0-065B', fstype='vfat')
partition(device='/dev/sda6', mountpoint='/media/Dati', fstype='fuseblk')]

The way I see it, disk_partitions() should return information about *mounted* 
physical devices only, and hence behave more like "df" rather than "fdisk -l".
Also, "df" reports mount points which doesn't refer to actual physical devices, 
such as "/dev/shm" ( 
http://www.cyberciti.biz/tips/what-is-devshm-and-its-practical-usage.html ), 
"/var/run" and "/var/lock". 
IMO, we should ignore them.

Attached is a draft for Linux.
Still have to look into other implementations.

Attachment: linux.py

Original issue: http://code.google.com/p/psutil/issues/detail?id=174

[giampaolo]

From g.rodola on June 15, 2011 03:00:37

Implemented on Linux in r1026 .
I provided an "all" optional argument defaulting to False to filter for 
physical devices only.


>>> psutil.disk_partitions()
partition(device='/dev/sda3', mountpoint='/', fstype='ext4')
partition(device='/dev/sda7', mountpoint='/home', fstype='ext4')
partition(device='/dev/sdb1', mountpoint='/media/1CA0-065B', fstype='vfat')
partition(device='/dev/sda6', mountpoint='/media/Dati', fstype='fuseblk')
>>>


>>> psutil.disk_partitions(all=True)
partition(device='/dev/sda3', mountpoint='/', fstype='ext4')
partition(device='proc', mountpoint='/proc', fstype='proc')
partition(device='', mountpoint='/sys', fstype='sysfs')
partition(device='fusectl', mountpoint='/sys/fs/fuse/connections', 
fstype='fusectl')
partition(device='', mountpoint='/sys/kernel/debug', fstype='debugfs')
partition(device='', mountpoint='/sys/kernel/security', fstype='securityfs')
partition(device='', mountpoint='/dev', fstype='devtmpfs')
partition(device='', mountpoint='/dev/pts', fstype='devpts')
partition(device='', mountpoint='/dev/shm', fstype='tmpfs')
partition(device='', mountpoint='/var/run', fstype='tmpfs')
partition(device='', mountpoint='/var/lock', fstype='tmpfs')
partition(device='/dev/sda7', mountpoint='/home', fstype='ext4')
partition(device='binfmt_misc', mountpoint='/proc/sys/fs/binfmt_misc', 
fstype='binfmt_misc')
partition(device='gvfs-fuse-daemon', mountpoint='/home/giampaolo/.gvfs', 
fstype='fuse.gvfs-fuse-daemon')
partition(device='/dev/sdb1', mountpoint='/media/1CA0-065B', fstype='vfat')
partition(device='/dev/sda6', mountpoint='/media/Dati', fstype='fuseblk')

Status: Started
Labels: Milestone-0.2.2 Progress-1in4

[giampaolo]

From g.rodola on June 16, 2011 03:07:01

FreeBSD implementation added as r1027 .

Labels: -Progress-1in4 Progress-2in4

[giampaolo]

From g.rodola on June 17, 2011 11:04:03

Implemented on Windows in r1030 .

Labels: -Progress-2in4 Progress-3in4

[giampaolo]

From jcscoob...@gmail.com on June 27, 2011 09:46:15

Attached is a patch for OS X support.  It is identical to BSD support but I 
couldn't find a good way to share code between the BSD and OS X 
implementations.  That being said, I copied the approach for BSD to implement 
OS X support.  If you know a better way to do this so that OS X uses the BSD 
sources for this, since OS X is a BSD derivative, feel free to just commit your version.

Attachment: issue_174_os_x.patch

[giampaolo]

From g.rodola on June 27, 2011 09:56:28

Added in r1047 .
As for now I can't think of a smart way to share the same code between OSX and 
FreeBSD. I'll think about it later. Closing out as FixedInSvn for now.

Status: FixedInSVN
Labels: -Progress-3in4 Progress-4in4

[giampaolo]

From g.rodola on June 27, 2011 10:52:41

Labels: Milestone-0.3.0

[giampaolo]

From g.rodola on July 08, 2011 12:07:35

Status: Fixed

[giampaolo]

From g.rodola on March 02, 2013 04:01:08

Updated csets after the SVN -> Mercurial migration: r1026 == revision 
5e77d0b5125a r1027 == revision d05c75bf4288 r1030 == revision a566c8a5fbf6 
r1047 == revision 186496a8bd0f