Re: [PATCH RFC 0/2] docs: Deal with some Sphinx deprecation warnings

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Em Wed, 22 May 2019 13:04:08 -0300
Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> escreveu:

> Em Wed, 22 May 2019 09:45:59 -0600
> Jonathan Corbet <corbet@xxxxxxx> escreveu:
> 
> > On Wed, 22 May 2019 15:25:36 +0200
> > Markus Heiser <markus.heiser@xxxxxxxxxxx> wrote:
> >   
> > > Lets use 1.7 :
> > > 
> > > - no need for Use_SSI wrapper
> > > - new log should work with 1.7 [1] --> no need for kernellog.py and
> > >    additional imports, instead include on top of python modules ::
> > > 
> > >      from sphinx.util import logging
> > >      logger = logging.getLogger('kerneldoc')    
> > 
> > I think we're going to have to drag things forward at some point in the
> > not-too-distant future, but I think I'd rather not do that quite yet.  The
> > cost of supporting older sphinx for a few releases while we warn people is
> > not all that high.  So I think we should:
> > 
> >  - Put in (a future version of) my hacks for now, plus whatever else might
> >    be needed to make 2.0 work right.
> > 
> >  - Fix the fallout with regard to out-of-toctree .rst files so that we can
> >    actually build again with current sphinx.
> > 
> >  - Update Documentation/sphinx/requirements.txt to ask for something a wee
> >    bit more recent than 1.4.9.  
> 
> You should remember to also update conf.py (with currently points to 1.3):
> 
> 	# If your documentation needs a minimal Sphinx version, state it here.
> 	needs_sphinx = '1.3'
> 
> Also, if you touch there, you should also touch:
> 
> 	./scripts/sphinx-pre-install
> 
> The change there won't be as trivial as just changing this line:
> 
> 	$virtenv_dir = "sphinx_1.4";
> 
> as the script should now run sphinx-build --version, in order to check
> if the version is lower than the new minimal version. It probably makes
> sense to make it grep the version from needs_sphinx at conf.py.
> 
> >  - Add a warning when building with an older version that (say) 1.7 will
> >    be required as of (say) 5.5.  
> 
> It probably makes sense to add such check at the pre-install script,
> and add a:
> 
> 	SPHINXOPTS="-jauto"
> 
> somewhere if version is 1.7 or upper.
> 

I'm meaning something like the enclosed patch.

(PS.: I'm still working at the patch)



Thanks,
Mauro

[RFC PATCH] scripts/sphinx-pre-install: make it handle Sphinx versions

As we want to switch to a newer Sphinx version in the future,
add some version detected logic.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>

diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index f6a5c0bae31e..8835aede4c61 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -13,7 +13,7 @@ use strict;
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 
-my $virtenv_dir = "sphinx_1.4";
+my $conf = "Documentation/conf.py";
 my $requirement_file = "Documentation/sphinx/requirements.txt";
 
 #
@@ -27,6 +27,10 @@ my $optional = 0;
 my $need_symlink = 0;
 my $need_sphinx = 0;
 my $install = "";
+my $min_version;
+my $rec_version;
+my $cur_version;
+my $virtenv_dir = "sphinx_";
 
 #
 # Command line arguments
@@ -76,6 +80,52 @@ my %texlive = (
 # Subroutines that checks if a feature exists
 #
 
+sub handle_sphinx_version()
+{
+	open IN, $conf;
+	while (<IN>) {
+		if (m/^\s*needs_sphinx\s*=\s*[\'\"]([\d\.]+)[\'\"]/) {
+			$min_version=$1;
+			last;
+		}
+	}
+	close IN;
+
+	die "Can't get needs_sphinx version from $conf" if (!$min_version);
+
+	open IN, $requirement_file;
+	while (<IN>) {
+		if (m/^\s*Sphinx\s*==\s*([\d\.]+)$/) {
+			$rec_version=$1;
+			last;
+		}
+	}
+	close IN;
+
+	open IN, "sphinx-build --version 2>&1 |";
+	while (<IN>) {
+		if (m/^\s*sphinx-build\s+([\d\.]+)$/) {
+			$cur_version=$1;
+			last;
+		}
+	}
+	close IN;
+
+	$virtenv_dir .= $rec_version;
+
+	# Sphinx is not installed
+	return if (!$cur_version);
+
+	if ($cur_version lt $min_version) {
+		print "Sphinx version older than $min_version! We recommend at least $rec_version";
+		exit -1;
+	}
+
+	if ($cur_version lt $rec_version) {
+		print "Warning: we recommend at least Sphinx version $rec_version";
+	}
+}
+
 sub check_missing(%)
 {
 	my %map = %{$_[0]};
@@ -587,6 +637,8 @@ while (@ARGV) {
 	}
 }
 
+handle_sphinx_version();
+
 #
 # Determine the system type. There's no standard unique way that would
 # work with all distros with a minimal package install. So, several





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