linux-kernel - [PATCH v2 4/5] scripts: sphinx-pre-install: provide both venv and package installs

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Date:   Sat,  2 Jul 2022 11:11:28 +0100
From:   Mauro Carvalho Chehab <mchehab@...nel.org>
To:     Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        "Jonathan Corbet" <corbet@....net>,
        "Mauro Carvalho Chehab" <mchehab+huawei@...nel.org>,
        ksummit-discuss@...ts.linuxfoundation.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 4/5] scripts: sphinx-pre-install: provide both venv and package installs

As it is not a consensus about installing sphinx using venv, and
modern distributions are now shipping with Sphinx versions above
the minimal requirements to build the docs, provide both venv
and package install commands by default.

Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
---

To avoid mailbombing on a large number of people, only mailing lists were C/C on the cover.
See [PATCH v2 0/5] at: https://lore.kernel.org/all/cover.1656756450.git.mchehab@kernel.org/

 scripts/sphinx-pre-install | 55 +++++++++++++++++++++++++++++---------
 1 file changed, 42 insertions(+), 13 deletions(-)

diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index 930a6d058c12..106d75425d3f 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -25,6 +25,7 @@ my $need_sphinx = 0;
 my $need_pip = 0;
 my $need_virtualenv = 0;
 my $rec_sphinx_upgrade = 0;
+my $verbose_warn_install = 1;
 my $install = "";
 my $virtenv_dir = "";
 my $python_cmd = "";
@@ -103,10 +104,12 @@ sub check_missing(%)
 			next;
 		}
 
-		if ($is_optional) {
-			print "Warning: better to also install \"$prog\".\n";
-		} else {
-			print "ERROR: please install \"$prog\", otherwise, build won't work.\n";
+		if ($verbose_warn_install) {
+			if ($is_optional) {
+				print "Warning: better to also install \"$prog\".\n";
+			} else {
+				print "ERROR: please install \"$prog\", otherwise, build won't work.\n";
+			}
 		}
 		if (defined($map{$prog})) {
 			$install .= " " . $map{$prog};
@@ -386,7 +389,8 @@ sub give_debian_hints()
 	check_missing(\%map);
 
 	return if (!$need && !$optional);
-	printf("You should run:\n\n\tsudo apt-get install $install\n");
+	printf("You should run:\n") if ($verbose_warn_install);
+	printf("\n\tsudo apt-get install $install\n");
 }
 
 sub give_redhat_hints()
@@ -458,10 +462,12 @@ sub give_redhat_hints()
 
 	if (!$old) {
 		# dnf, for Fedora 18+
-		printf("You should run:\n\n\tsudo dnf install -y $install\n");
+		printf("You should run:\n") if ($verbose_warn_install);
+		printf("\n\tsudo dnf install -y $install\n");
 	} else {
 		# yum, for RHEL (and clones) or Fedora version < 18
-		printf("You should run:\n\n\tsudo yum install -y $install\n");
+		printf("You should run:\n") if ($verbose_warn_install);
+		printf("\n\tsudo yum install -y $install\n");
 	}
 }
 
@@ -509,7 +515,8 @@ sub give_opensuse_hints()
 	check_missing(\%map);
 
 	return if (!$need && !$optional);
-	printf("You should run:\n\n\tsudo zypper install --no-recommends $install\n");
+	printf("You should run:\n") if ($verbose_warn_install);
+	printf("\n\tsudo zypper install --no-recommends $install\n");
 }
 
 sub give_mageia_hints()
@@ -553,7 +560,8 @@ sub give_mageia_hints()
 	check_missing(\%map);
 
 	return if (!$need && !$optional);
-	printf("You should run:\n\n\tsudo $packager_cmd $install\n");
+	printf("You should run:\n") if ($verbose_warn_install);
+	printf("\n\tsudo $packager_cmd $install\n");
 }
 
 sub give_arch_linux_hints()
@@ -583,7 +591,8 @@ sub give_arch_linux_hints()
 	check_missing(\%map);
 
 	return if (!$need && !$optional);
-	printf("You should run:\n\n\tsudo pacman -S $install\n");
+	printf("You should run:\n") if ($verbose_warn_install);
+	printf("\n\tsudo pacman -S $install\n");
 }
 
 sub give_gentoo_hints()
@@ -610,7 +619,8 @@ sub give_gentoo_hints()
 
 	return if (!$need && !$optional);
 
-	printf("You should run:\n\n");
+	printf("You should run:\n") if ($verbose_warn_install);
+	printf("\n");
 
 	my $imagemagick = "media-gfx/imagemagick svg png";
 	my $cairo = "media-gfx/graphviz cairo pdf";
@@ -700,7 +710,7 @@ sub check_distros()
 
 sub deactivate_help()
 {
-	printf "\nIf you want to exit the virtualenv, you can use:\n";
+	printf "\n    If you want to exit the virtualenv, you can use:\n";
 	printf "\tdeactivate\n";
 }
 
@@ -863,7 +873,7 @@ sub recommend_sphinx_version($)
 			print "To upgrade Sphinx, use:\n\n";
 		}
 	} else {
-		print "Sphinx needs to be installed either as a package or via pip/pypi with:\n";
+		print "\nSphinx needs to be installed either:\n1) via pip/pypi with:\n\n";
 	}
 
 	$python_cmd = find_python_no_venv();
@@ -873,6 +883,25 @@ sub recommend_sphinx_version($)
 	printf "\t. $virtenv_dir/bin/activate\n";
 	printf "\tpip install -r $requirement_file\n";
 	deactivate_help();
+
+	printf "\n2) As a package with:\n";
+
+	my $old_need = $need;
+	my $old_optional = $optional;
+	%missing = ();
+	$pdf = 0;
+	$optional = 0;
+	$install = "";
+	$verbose_warn_install = 0;
+
+	add_package("python-sphinx", 0);
+	check_python_module("sphinx_rtd_theme", 1);
+
+	check_distros();
+
+	$need = $old_need;
+	$optional = $old_optional;
+
 }
 
 sub check_needs()
-- 
2.36.1