Checking if Sphinx is available and read to run is tricky, and may involve installing several packages for the document build to happen. There are two options to install Sphinx: - via distro-provided packages; - via pip, using virtualenv/venv. Some recent discussions showed a couple of misleading instructions. This series improves the Sphinx detection by: - Fixing the logich with checks if a past venv is working and recommend just enabling it instead of installing a new venv; - Detect if sphinx-build stopped working on a venv. This may happen during distribution updates; - Move the PDF minimal version to be later, in order for it to be printed only after finishing the Sphinx version check; Additionally, as now the Sphinx provided on almost all modern distros are above the minimal required version, place instructions about how to install Sphinx from the distro-provided packages after placing the instructions for installing it via venv. This will hopefully help to have more developers checking documentation builds with make htmldocs --- v2: - Fix some issues at the logic that was recommending installing via distro-package manager; - Add a notice about Sphinx 3.0+ false-positive warnings due to a Sphinx bug. People using a version different than the recommended one should know about that. Mauro Carvalho Chehab (5): scripts: sphinx-pre-install: fix venv version check logic scripts: sphinx-pre-install: report broken venv scripts: sphinx-pre-install: check for PDF min version later on scripts: sphinx-pre-install: provide both venv and package installs scripts: sphinx-pre-install: place a warning for Sphinx >= 3.0 scripts/sphinx-pre-install | 90 +++++++++++++++++++++++++++++--------- 1 file changed, 69 insertions(+), 21 deletions(-) -- 2.36.1