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[PATCH v7 28/31] python: add Makefile for some common tasks


From: John Snow
Subject: [PATCH v7 28/31] python: add Makefile for some common tasks
Date: Tue, 25 May 2021 20:24:51 -0400

Add "make venv" to create the pipenv-managed virtual environment that
contains our explicitly pinned dependencies.

Add "make check" to run the python linters [in the host execution
environment].

Add "make venv-check" which combines the above two: create/update the
venv, then run the linters in that explicitly managed environment.

Add "make develop" which canonizes the runes needed to get both the
linting pre-requisites (the "[devel]" part), and the editable
live-install (the "-e" part) of these python libraries.

make clean: delete miscellaneous python packaging output possibly
created by pipenv, pip, or other python packaging utilities

make distclean: delete the above, the .venv, and the editable "qemu"
package forwarder (qemu.egg-info) if there is one.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>
---
 python/PACKAGE.rst |  6 ++++++
 python/README.rst  |  6 ++++++
 python/Makefile    | 43 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+)
 create mode 100644 python/Makefile

diff --git a/python/PACKAGE.rst b/python/PACKAGE.rst
index 05ea7789fc1..b0b86cc4c31 100644
--- a/python/PACKAGE.rst
+++ b/python/PACKAGE.rst
@@ -35,3 +35,9 @@ the report.
 Optional packages necessary for running code quality analysis for this
 package can be installed with the optional dependency group "devel":
 ``pip install qemu[devel]``.
+
+``make develop`` can be used to install this package in editable mode
+(to the current environment) *and* bring in testing dependencies in one
+command.
+
+``make check`` can be used to run the available tests.
diff --git a/python/README.rst b/python/README.rst
index 6bd2c6b3547..dcf993819db 100644
--- a/python/README.rst
+++ b/python/README.rst
@@ -28,6 +28,9 @@ Installing ".[devel]" instead of "." will additionally pull 
in required
 packages for testing this package. They are not runtime requirements,
 and are not needed to simply use these libraries.
 
+Running ``make develop`` will pull in all testing dependencies and
+install QEMU in editable mode to the current environment.
+
 See `Installing packages using pip and virtual environments
 
<https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/>`_
 for more information.
@@ -39,6 +42,9 @@ Files in this directory
 - ``qemu/`` Python package source directory.
 - ``tests/`` Python package tests directory.
 - ``avocado.cfg`` Configuration for the Avocado test-runner.
+  Used by ``make check`` et al.
+- ``Makefile`` provides some common testing/installation invocations.
+  Try ``make help`` to see available targets.
 - ``MANIFEST.in`` is read by python setuptools, it specifies additional files
   that should be included by a source distribution.
 - ``PACKAGE.rst`` is used as the README file that is visible on PyPI.org.
diff --git a/python/Makefile b/python/Makefile
new file mode 100644
index 00000000000..a9da1689558
--- /dev/null
+++ b/python/Makefile
@@ -0,0 +1,43 @@
+.PHONY: help venv venv-check check clean distclean develop
+
+help:
+       @echo "python packaging help:"
+       @echo ""
+       @echo "make venv:       Create pipenv's virtual environment."
+       @echo "    NOTE: Requires Python 3.6 and pipenv."
+       @echo "          Will download packages from PyPI."
+       @echo "    Hint: (On Fedora): 'sudo dnf install python36 pipenv'"
+       @echo ""
+       @echo "make venv-check: run linters using pipenv's virtual environment."
+       @echo "    Hint: If you don't know which test to run, run this one!"
+       @echo ""
+       @echo "make develop:    Install deps for 'make check', and"
+       @echo "                 the qemu libs in editable/development mode."
+       @echo ""
+       @echo "make check:      run linters using the current environment."
+       @echo ""
+       @echo "make clean:      remove package build output."
+       @echo ""
+       @echo "make distclean:  remove venv files, qemu package forwarder,"
+       @echo "                 built distribution files, and everything"
+       @echo "                 from 'make clean'."
+
+venv: .venv
+.venv: Pipfile.lock
+       @PIPENV_VENV_IN_PROJECT=1 pipenv sync --dev --keep-outdated
+       @touch .venv
+
+venv-check: venv
+       @pipenv run make check
+
+develop:
+       pip3 install -e .[devel]
+
+check:
+       @avocado --config avocado.cfg run tests/
+
+clean:
+       python3 setup.py clean --all
+
+distclean: clean
+       rm -rf qemu.egg-info/ .venv/ dist/
-- 
2.31.1




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