pm: cpupower: Add install and uninstall options to bindings makefile

JIRA: https://issues.redhat.com/browse/RHEL-91191

Upstream Status: git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

commit 6de0256
Author: John B. Wyatt IV <jwyatt@redhat.com>
Date:   Wed Dec 18 20:26:02 2024 -0500

    pm: cpupower: Add install and uninstall options to bindings makefile

    Installs the .so and .py files generated by SWIG to system's site packages
    directory. This allows the Python bindings to be used system wide. This
    commit also includes documentation on setting up and installing the Python
    bindings.

    Link: https://lore.kernel.org/r/20241219012606.38963-1-jwyatt@redhat.com
    Signed-off-by: "John B. Wyatt IV" <jwyatt@redhat.com>
    Signed-off-by: "John B. Wyatt IV" <sageofredondo@gmail.com>
    Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

Signed-off-by: John B. Wyatt IV <jwyatt@redhat.com>

Author: John B. Wyatt IV

tools/power/cpupower/bindings/python/Makefile

@@ -11,6 +11,7 @@ HAVE_PYCONFIG := $(shell if which python-config >/dev/null 2>&1; then echo 1; el
 LIB_DIR := ../../lib
 PY_INCLUDE = $(firstword $(shell python-config --includes))
 OBJECTS_LIB = $(wildcard $(LIB_DIR)/*.o)
+INSTALL_DIR = $(shell python3 -c "import site; print(site.getsitepackages()[0])")
 
 all: _raw_pylibcpupower.so
 
@@ -28,6 +29,15 @@ else ifeq ($(HAVE_PYCONFIG),0)
 endif
 	swig -python raw_pylibcpupower.swg
 
+# Only installs the Python bindings
+install: _raw_pylibcpupower.so
+	install -D _raw_pylibcpupower.so $(INSTALL_DIR)/_raw_pylibcpupower.so
+	install -D raw_pylibcpupower.py $(INSTALL_DIR)/raw_pylibcpupower.py
+
+uninstall:
+	rm -f $(INSTALL_DIR)/_raw_pylibcpupower.so
+	rm -f $(INSTALL_DIR)/raw_pylibcpupower.py
+
 # Will only clean the bindings folder; will not clean the actual cpupower folder
 clean:
 	rm -f raw_pylibcpupower.py raw_pylibcpupower_wrap.c raw_pylibcpupower_wrap.o _raw_pylibcpupower.so

tools/power/cpupower/bindings/python/README

@@ -48,6 +48,31 @@ To run the test script:
 $ python test_raw_pylibcpupower.py
 
 
+developing/using the bindings directly
+--------------------------------------
+
+You need to add the Python bindings directory to your $PYTHONPATH.
+
+You would set the path in the Bash terminal or in the Bash profile:
+
+PYTHONPATH=~/linux/tools/power/cpupower/bindings/python:$PYTHONPATH
+
+This allows you to set a specific repo of the bindings to use.
+
+
+installing/uninstalling
+-----------------------
+
+Python uses a system specific site-packages folder to look up modules to import
+by default. You do not need to install cpupower to use the SWIG bindings.
+
+You can install and uninstall the bindings to the site-packages with:
+
+sudo make install
+
+sudo make uninstall
+
+
 credits
 -------