[PATCH v5 0/2] Add cpupower idle-state functionality

["John B. Wyatt IV" <jwyatt@redhat.com>]

This patch series adds idle-state functionality to control cpu power
usage and to test idle states.

The number of cpus was needed in the cpupower file; I extracted out the
previously local to tuna-cli.py functionality to a separate file so the
cpu code can be used in any file in Tuna and reduce duplications. The
nics code was similar so it was also extracted to reduce the number of
global variables.

Sincerely,
John Wyatt
Software Engineer, Core Kernel
Red Hat

Changes v4 -> v5:
- Additional changes by John Kacur suggested off list to make the code
  more Pythonic, changing idle_set to cpu_power, and resolve some
  miscellaneous issues.
- Changed error messages to use stderr as requested by Crystal Wood and
  other suggestions.
- Removed Suggested-by for Crystal as she said it was unwarranted.

Changes v3 -> v4:
- Additional changes suggest by John Kacur around the use of
  @classmethods that they should've been @staticmethods and the changes
  needed for them.
- Changed the SPDX lines to be at the top of the files as requested by
  John Kacur.

Changes v2 -> v3:
- Several small improvements suggested by John Kacur off list including
  removing unnecessary string interpolation, renaming idle-set to idle_set,
  and correct placement of docstrings.

Changes v1 -> v2:
- Numerous improvements suggested by Crystal Wood including message
  text, output, error handling, moving a function to utils.py and
  structure of the code.
- Fixed a libcpupower bindings detection error that did not show on
  my local machine but did on a fresh install of Fedora GNOME 40
  reported by John Kacur.

John B. Wyatt IV (2):
  tuna: extract common cpu and nics determination code into a utils.py
    file
  tuna: Add idle_state control functionality

 tuna-cmd.py      |  64 +++++++++--------
 tuna/cpupower.py | 177 +++++++++++++++++++++++++++++++++++++++++++++++
 tuna/utils.py    |  28 ++++++++
 3 files changed, 239 insertions(+), 30 deletions(-)
 create mode 100755 tuna/cpupower.py
 create mode 100644 tuna/utils.py

-- 
2.49.0