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Subject[PATCH AUTOSEL 5.2 10/76] scripts/sphinx-pre-install: don't use LaTeX with CentOS 7
Date
From: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

[ Upstream commit 56e5a633923793b31515795ad30156a307572c1e ]

There aren't enough texlive packages for LaTeX-based builds
to work on CentOS/RHEL <= 7.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
scripts/sphinx-pre-install | 68 ++++++++++++++++++++++++++++----------
1 file changed, 50 insertions(+), 18 deletions(-)

diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index 778f3ae918775..4cc2b3ee5209f 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -77,6 +77,17 @@ sub check_missing(%)
foreach my $prog (sort keys %missing) {
my $is_optional = $missing{$prog};

+ # At least on some LTS distros like CentOS 7, texlive doesn't
+ # provide all packages we need. When such distros are
+ # detected, we have to disable PDF output.
+ #
+ # So, we need to ignore the packages that distros would
+ # need for LaTeX to work
+ if ($is_optional == 2 && !$pdf) {
+ $optional--;
+ next;
+ }
+
if ($is_optional) {
print "Warning: better to also install \"$prog\".\n";
} else {
@@ -326,10 +337,10 @@ sub give_debian_hints()

if ($pdf) {
check_missing_file("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf",
- "fonts-dejavu", 1);
+ "fonts-dejavu", 2);
}

- check_program("dvipng", 1) if ($pdf);
+ check_program("dvipng", 2) if ($pdf);
check_missing(\%map);

return if (!$need && !$optional);
@@ -364,22 +375,40 @@ sub give_redhat_hints()
#
# Checks valid for RHEL/CentOS version 7.x.
#
+ my $old = 0;
+ my $rel;
+ $rel = $1 if ($system_release =~ /release\s+(\d+)/);
+
if (!($system_release =~ /Fedora/)) {
$map{"virtualenv"} = "python-virtualenv";
- }

- my $release;
+ if ($rel && $rel < 8) {
+ $old = 1;
+ $pdf = 0;

- $release = $1 if ($system_release =~ /Fedora\s+release\s+(\d+)/);
+ printf("Note: texlive packages on RHEL/CENTOS <= 7 are incomplete. Can't support PDF output\n");
+ printf("If you want to build PDF, please read:\n");
+ printf("\thttps://www.systutorials.com/241660/how-to-install-tex-live-on-centos-7-linux/\n");
+ }
+ } else {
+ if ($rel && $rel < 26) {
+ $old = 1;
+ }
+ }
+ if (!$rel) {
+ printf("Couldn't identify release number\n");
+ $old = 1;
+ $pdf = 0;
+ }

- check_rpm_missing(\@fedora26_opt_pkgs, 1) if ($pdf && $release >= 26);
- check_rpm_missing(\@fedora_tex_pkgs, 1) if ($pdf);
- check_missing_tex(1) if ($pdf);
+ check_rpm_missing(\@fedora26_opt_pkgs, 2) if ($pdf && !$old);
+ check_rpm_missing(\@fedora_tex_pkgs, 2) if ($pdf);
+ check_missing_tex(2) if ($pdf);
check_missing(\%map);

return if (!$need && !$optional);

- if ($release >= 18) {
+ if (!$old) {
# dnf, for Fedora 18+
printf("You should run:\n\n\tsudo dnf install -y $install\n");
} else {
@@ -418,8 +447,8 @@ sub give_opensuse_hints()
"texlive-zapfding",
);

- check_rpm_missing(\@suse_tex_pkgs, 1) if ($pdf);
- check_missing_tex(1) if ($pdf);
+ check_rpm_missing(\@suse_tex_pkgs, 2) if ($pdf);
+ check_missing_tex(2) if ($pdf);
check_missing(\%map);

return if (!$need && !$optional);
@@ -443,7 +472,7 @@ sub give_mageia_hints()
"texlive-fontsextra",
);

- check_rpm_missing(\@tex_pkgs, 1) if ($pdf);
+ check_rpm_missing(\@tex_pkgs, 2) if ($pdf);
check_missing(\%map);

return if (!$need && !$optional);
@@ -466,7 +495,8 @@ sub give_arch_linux_hints()
"texlive-latexextra",
"ttf-dejavu",
);
- check_pacman_missing(\@archlinux_tex_pkgs, 1) if ($pdf);
+ check_pacman_missing(\@archlinux_tex_pkgs, 2) if ($pdf);
+
check_missing(\%map);

return if (!$need && !$optional);
@@ -485,7 +515,7 @@ sub give_gentoo_hints()
);

check_missing_file("/usr/share/fonts/dejavu/DejaVuSans.ttf",
- "media-fonts/dejavu", 1) if ($pdf);
+ "media-fonts/dejavu", 2) if ($pdf);

check_missing(\%map);

@@ -553,7 +583,7 @@ sub check_distros()
my %map = (
"sphinx-build" => "sphinx"
);
- check_missing_tex(1) if ($pdf);
+ check_missing_tex(2) if ($pdf);
check_missing(\%map);
print "I don't know distro $system_release.\n";
print "So, I can't provide you a hint with the install procedure.\n";
@@ -591,11 +621,13 @@ sub check_needs()
check_program("make", 0);
check_program("gcc", 0);
check_python_module("sphinx_rtd_theme", 1) if (!$virtualenv);
- check_program("xelatex", 1) if ($pdf);
check_program("dot", 1);
check_program("convert", 1);
- check_program("rsvg-convert", 1) if ($pdf);
- check_program("latexmk", 1) if ($pdf);
+
+ # Extra PDF files - should use 2 for is_optional
+ check_program("xelatex", 2) if ($pdf);
+ check_program("rsvg-convert", 2) if ($pdf);
+ check_program("latexmk", 2) if ($pdf);

check_distros();

--
2.20.1
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