mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-24 04:34:08 +08:00
d14d0c1aea
The Arch-linux detection is hit by catting /etc/issue, whose contents is (nowadays): Arch Linux \r (\l) It sounds a little ackward to print such string, so, instead, let's use the /etc/os-release file, with exists on lots of distributions and should provide a more reliable result. We'll keep the old tests before it, in order to avoid possible regressions with the other distros, although the new way should probably work on all the currently supported distributions. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/472924557afdf2b5492ae2a48c5ecfae216d54e2.1586883286.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
805 lines
19 KiB
Perl
Executable File
805 lines
19 KiB
Perl
Executable File
#!/usr/bin/perl
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# SPDX-License-Identifier: GPL-2.0-or-later
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use strict;
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# Copyright (c) 2017-2019 Mauro Carvalho Chehab <mchehab@kernel.org>
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#
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my $prefix = "./";
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$prefix = "$ENV{'srctree'}/" if ($ENV{'srctree'});
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my $conf = $prefix . "Documentation/conf.py";
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my $requirement_file = $prefix . "Documentation/sphinx/requirements.txt";
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my $virtenv_prefix = "sphinx_";
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#
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# Static vars
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#
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my %missing;
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my $system_release;
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my $need = 0;
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my $optional = 0;
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my $need_symlink = 0;
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my $need_sphinx = 0;
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my $rec_sphinx_upgrade = 0;
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my $install = "";
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my $virtenv_dir = "";
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my $min_version;
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#
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# Command line arguments
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#
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my $pdf = 1;
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my $virtualenv = 1;
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my $version_check = 0;
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#
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# List of required texlive packages on Fedora and OpenSuse
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#
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my %texlive = (
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'amsfonts.sty' => 'texlive-amsfonts',
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'amsmath.sty' => 'texlive-amsmath',
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'amssymb.sty' => 'texlive-amsfonts',
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'amsthm.sty' => 'texlive-amscls',
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'anyfontsize.sty' => 'texlive-anyfontsize',
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'atbegshi.sty' => 'texlive-oberdiek',
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'bm.sty' => 'texlive-tools',
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'capt-of.sty' => 'texlive-capt-of',
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'cmap.sty' => 'texlive-cmap',
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'ecrm1000.tfm' => 'texlive-ec',
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'eqparbox.sty' => 'texlive-eqparbox',
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'eu1enc.def' => 'texlive-euenc',
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'fancybox.sty' => 'texlive-fancybox',
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'fancyvrb.sty' => 'texlive-fancyvrb',
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'float.sty' => 'texlive-float',
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'fncychap.sty' => 'texlive-fncychap',
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'footnote.sty' => 'texlive-mdwtools',
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'framed.sty' => 'texlive-framed',
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'luatex85.sty' => 'texlive-luatex85',
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'multirow.sty' => 'texlive-multirow',
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'needspace.sty' => 'texlive-needspace',
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'palatino.sty' => 'texlive-psnfss',
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'parskip.sty' => 'texlive-parskip',
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'polyglossia.sty' => 'texlive-polyglossia',
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'tabulary.sty' => 'texlive-tabulary',
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'threeparttable.sty' => 'texlive-threeparttable',
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'titlesec.sty' => 'texlive-titlesec',
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'ucs.sty' => 'texlive-ucs',
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'upquote.sty' => 'texlive-upquote',
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'wrapfig.sty' => 'texlive-wrapfig',
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);
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#
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# Subroutines that checks if a feature exists
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#
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sub check_missing(%)
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{
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my %map = %{$_[0]};
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foreach my $prog (sort keys %missing) {
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my $is_optional = $missing{$prog};
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# At least on some LTS distros like CentOS 7, texlive doesn't
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# provide all packages we need. When such distros are
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# detected, we have to disable PDF output.
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#
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# So, we need to ignore the packages that distros would
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# need for LaTeX to work
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if ($is_optional == 2 && !$pdf) {
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$optional--;
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next;
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}
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if ($is_optional) {
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print "Warning: better to also install \"$prog\".\n";
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} else {
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print "ERROR: please install \"$prog\", otherwise, build won't work.\n";
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}
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if (defined($map{$prog})) {
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$install .= " " . $map{$prog};
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} else {
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$install .= " " . $prog;
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}
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}
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$install =~ s/^\s//;
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}
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sub add_package($$)
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{
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my $package = shift;
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my $is_optional = shift;
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$missing{$package} = $is_optional;
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if ($is_optional) {
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$optional++;
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} else {
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$need++;
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}
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}
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sub check_missing_file($$$)
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{
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my $files = shift;
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my $package = shift;
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my $is_optional = shift;
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for (@$files) {
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return if(-e $_);
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}
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add_package($package, $is_optional);
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}
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sub findprog($)
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{
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foreach(split(/:/, $ENV{PATH})) {
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return "$_/$_[0]" if(-x "$_/$_[0]");
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}
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}
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sub check_program($$)
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{
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my $prog = shift;
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my $is_optional = shift;
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return if findprog($prog);
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add_package($prog, $is_optional);
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}
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sub check_perl_module($$)
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{
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my $prog = shift;
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my $is_optional = shift;
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my $err = system("perl -M$prog -e 1 2>/dev/null /dev/null");
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return if ($err == 0);
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add_package($prog, $is_optional);
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}
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sub check_python_module($$)
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{
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my $prog = shift;
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my $is_optional = shift;
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my $err = system("python3 -c 'import $prog' 2>/dev/null /dev/null");
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return if ($err == 0);
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my $err = system("python -c 'import $prog' 2>/dev/null /dev/null");
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return if ($err == 0);
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add_package($prog, $is_optional);
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}
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sub check_rpm_missing($$)
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{
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my @pkgs = @{$_[0]};
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my $is_optional = $_[1];
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foreach my $prog(@pkgs) {
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my $err = system("rpm -q '$prog' 2>/dev/null >/dev/null");
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add_package($prog, $is_optional) if ($err);
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}
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}
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sub check_pacman_missing($$)
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{
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my @pkgs = @{$_[0]};
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my $is_optional = $_[1];
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foreach my $prog(@pkgs) {
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my $err = system("pacman -Q '$prog' 2>/dev/null >/dev/null");
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add_package($prog, $is_optional) if ($err);
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}
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}
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sub check_missing_tex($)
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{
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my $is_optional = shift;
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my $kpsewhich = findprog("kpsewhich");
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foreach my $prog(keys %texlive) {
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my $package = $texlive{$prog};
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if (!$kpsewhich) {
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add_package($package, $is_optional);
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next;
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}
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my $file = qx($kpsewhich $prog);
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add_package($package, $is_optional) if ($file =~ /^\s*$/);
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}
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}
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sub get_sphinx_fname()
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{
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my $fname = "sphinx-build";
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return $fname if findprog($fname);
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$fname = "sphinx-build-3";
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if (findprog($fname)) {
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$need_symlink = 1;
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return $fname;
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}
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if ($virtualenv) {
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my $prog = findprog("virtualenv-3");
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$prog = findprog("virtualenv-3.5") if (!$prog);
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check_program("virtualenv", 0) if (!$prog);
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$need_sphinx = 1;
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} else {
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add_package("python-sphinx", 0);
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}
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return "";
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}
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sub check_sphinx()
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{
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my $rec_version;
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my $cur_version;
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open IN, $conf or die "Can't open $conf";
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while (<IN>) {
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if (m/^\s*needs_sphinx\s*=\s*[\'\"]([\d\.]+)[\'\"]/) {
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$min_version=$1;
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last;
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}
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}
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close IN;
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die "Can't get needs_sphinx version from $conf" if (!$min_version);
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open IN, $requirement_file or die "Can't open $requirement_file";
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while (<IN>) {
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if (m/^\s*Sphinx\s*==\s*([\d\.]+)$/) {
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$rec_version=$1;
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last;
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}
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}
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close IN;
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die "Can't get recommended sphinx version from $requirement_file" if (!$min_version);
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$virtenv_dir = $virtenv_prefix . $rec_version;
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my $sphinx = get_sphinx_fname();
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return if ($sphinx eq "");
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open IN, "$sphinx --version 2>&1 |" or die "$sphinx returned an error";
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while (<IN>) {
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if (m/^\s*sphinx-build\s+([\d\.]+)(\+\/[\da-f]+)?$/) {
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$cur_version=$1;
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last;
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}
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# Sphinx 1.2.x uses a different format
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if (m/^\s*Sphinx.*\s+([\d\.]+)$/) {
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$cur_version=$1;
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last;
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}
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}
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close IN;
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die "$sphinx didn't return its version" if (!$cur_version);
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if ($cur_version lt $min_version) {
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printf "ERROR: Sphinx version is %s. It should be >= %s (recommended >= %s)\n",
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$cur_version, $min_version, $rec_version;;
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$need_sphinx = 1;
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return;
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}
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if ($cur_version lt $rec_version) {
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printf "Sphinx version %s\n", $cur_version;
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print "Warning: It is recommended at least Sphinx version $rec_version.\n";
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$rec_sphinx_upgrade = 1;
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return;
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}
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# On version check mode, just assume Sphinx has all mandatory deps
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exit (0) if ($version_check);
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}
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#
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# Ancillary subroutines
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#
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sub catcheck($)
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{
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my $res = "";
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$res = qx(cat $_[0]) if (-r $_[0]);
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return $res;
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}
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sub which($)
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{
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my $file = shift;
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my @path = split ":", $ENV{PATH};
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foreach my $dir(@path) {
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my $name = $dir.'/'.$file;
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return $name if (-x $name );
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}
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return undef;
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}
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#
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# Subroutines that check distro-specific hints
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#
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sub give_debian_hints()
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{
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my %map = (
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"python-sphinx" => "python3-sphinx",
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"sphinx_rtd_theme" => "python3-sphinx-rtd-theme",
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"virtualenv" => "virtualenv",
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"dot" => "graphviz",
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"convert" => "imagemagick",
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"Pod::Usage" => "perl-modules",
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"xelatex" => "texlive-xetex",
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"rsvg-convert" => "librsvg2-bin",
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);
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if ($pdf) {
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check_missing_file(["/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"],
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"fonts-dejavu", 2);
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check_missing_file(["/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc",
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"/usr/share/fonts/opentype/noto/NotoSerifCJK-Regular.ttc"],
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"fonts-noto-cjk", 2);
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}
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check_program("dvipng", 2) if ($pdf);
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check_missing(\%map);
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return if (!$need && !$optional);
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printf("You should run:\n\n\tsudo apt-get install $install\n");
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}
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sub give_redhat_hints()
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{
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my %map = (
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"python-sphinx" => "python3-sphinx",
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"sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
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"virtualenv" => "python3-virtualenv",
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"dot" => "graphviz",
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"convert" => "ImageMagick",
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"Pod::Usage" => "perl-Pod-Usage",
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"xelatex" => "texlive-xetex-bin",
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"rsvg-convert" => "librsvg2-tools",
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);
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my @fedora26_opt_pkgs = (
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"graphviz-gd", # Fedora 26: needed for PDF support
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);
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my @fedora_tex_pkgs = (
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"texlive-collection-fontsrecommended",
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"texlive-collection-latex",
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"texlive-xecjk",
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"dejavu-sans-fonts",
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"dejavu-serif-fonts",
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"dejavu-sans-mono-fonts",
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);
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#
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# Checks valid for RHEL/CentOS version 7.x.
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#
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my $old = 0;
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my $rel;
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$rel = $1 if ($system_release =~ /release\s+(\d+)/);
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if (!($system_release =~ /Fedora/)) {
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$map{"virtualenv"} = "python-virtualenv";
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if ($rel && $rel < 8) {
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$old = 1;
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$pdf = 0;
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printf("Note: texlive packages on RHEL/CENTOS <= 7 are incomplete. Can't support PDF output\n");
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printf("If you want to build PDF, please read:\n");
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printf("\thttps://www.systutorials.com/241660/how-to-install-tex-live-on-centos-7-linux/\n");
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}
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} else {
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if ($rel && $rel < 26) {
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$old = 1;
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}
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}
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if (!$rel) {
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printf("Couldn't identify release number\n");
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$old = 1;
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$pdf = 0;
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}
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if ($pdf) {
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check_missing_file(["/usr/share/fonts/google-noto-cjk/NotoSansCJK-Regular.ttc"],
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"google-noto-sans-cjk-ttc-fonts", 2);
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}
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check_rpm_missing(\@fedora26_opt_pkgs, 2) if ($pdf && !$old);
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check_rpm_missing(\@fedora_tex_pkgs, 2) if ($pdf);
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check_missing_tex(2) if ($pdf);
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check_missing(\%map);
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return if (!$need && !$optional);
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if (!$old) {
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# dnf, for Fedora 18+
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printf("You should run:\n\n\tsudo dnf install -y $install\n");
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} else {
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# yum, for RHEL (and clones) or Fedora version < 18
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printf("You should run:\n\n\tsudo yum install -y $install\n");
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}
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}
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sub give_opensuse_hints()
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{
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my %map = (
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"python-sphinx" => "python3-sphinx",
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"sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
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"virtualenv" => "python3-virtualenv",
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"dot" => "graphviz",
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"convert" => "ImageMagick",
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"Pod::Usage" => "perl-Pod-Usage",
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"xelatex" => "texlive-xetex-bin",
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"rsvg-convert" => "rsvg-view",
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);
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my @suse_tex_pkgs = (
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"texlive-babel-english",
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"texlive-caption",
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"texlive-colortbl",
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"texlive-courier",
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"texlive-dvips",
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"texlive-helvetic",
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"texlive-makeindex",
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"texlive-metafont",
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"texlive-metapost",
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"texlive-palatino",
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"texlive-preview",
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"texlive-times",
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"texlive-zapfchan",
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"texlive-zapfding",
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);
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$map{"latexmk"} = "texlive-latexmk-bin";
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# FIXME: add support for installing CJK fonts
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#
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# I tried hard, but was unable to find a way to install
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# "Noto Sans CJK SC" on openSUSE
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check_rpm_missing(\@suse_tex_pkgs, 2) if ($pdf);
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check_missing_tex(2) if ($pdf);
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check_missing(\%map);
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return if (!$need && !$optional);
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printf("You should run:\n\n\tsudo zypper install --no-recommends $install\n");
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}
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sub give_mageia_hints()
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{
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my %map = (
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"python-sphinx" => "python3-sphinx",
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"sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
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"virtualenv" => "python3-virtualenv",
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"dot" => "graphviz",
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"convert" => "ImageMagick",
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"Pod::Usage" => "perl-Pod-Usage",
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"xelatex" => "texlive",
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"rsvg-convert" => "librsvg2-tools",
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);
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my @tex_pkgs = (
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"texlive-fontsextra",
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);
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$map{"latexmk"} = "texlive-collection-basic";
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if ($pdf) {
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check_missing_file(["/usr/share/fonts/google-noto-cjk/NotoSansCJK-Regular.ttc"],
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"google-noto-sans-cjk-ttc-fonts", 2);
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}
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check_rpm_missing(\@tex_pkgs, 2) if ($pdf);
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check_missing(\%map);
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return if (!$need && !$optional);
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printf("You should run:\n\n\tsudo urpmi $install\n");
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}
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|
|
sub give_arch_linux_hints()
|
|
{
|
|
my %map = (
|
|
"sphinx_rtd_theme" => "python-sphinx_rtd_theme",
|
|
"virtualenv" => "python-virtualenv",
|
|
"dot" => "graphviz",
|
|
"convert" => "imagemagick",
|
|
"xelatex" => "texlive-bin",
|
|
"latexmk" => "texlive-core",
|
|
"rsvg-convert" => "extra/librsvg",
|
|
);
|
|
|
|
my @archlinux_tex_pkgs = (
|
|
"texlive-core",
|
|
"texlive-latexextra",
|
|
"ttf-dejavu",
|
|
);
|
|
check_pacman_missing(\@archlinux_tex_pkgs, 2) if ($pdf);
|
|
|
|
if ($pdf) {
|
|
check_missing_file(["/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc"],
|
|
"noto-fonts-cjk", 2);
|
|
}
|
|
|
|
check_missing(\%map);
|
|
|
|
return if (!$need && !$optional);
|
|
printf("You should run:\n\n\tsudo pacman -S $install\n");
|
|
}
|
|
|
|
sub give_gentoo_hints()
|
|
{
|
|
my %map = (
|
|
"sphinx_rtd_theme" => "dev-python/sphinx_rtd_theme",
|
|
"virtualenv" => "dev-python/virtualenv",
|
|
"dot" => "media-gfx/graphviz",
|
|
"convert" => "media-gfx/imagemagick",
|
|
"xelatex" => "dev-texlive/texlive-xetex media-fonts/dejavu",
|
|
"rsvg-convert" => "gnome-base/librsvg",
|
|
);
|
|
|
|
check_missing_file(["/usr/share/fonts/dejavu/DejaVuSans.ttf"],
|
|
"media-fonts/dejavu", 2) if ($pdf);
|
|
|
|
if ($pdf) {
|
|
check_missing_file(["/usr/share/fonts/noto-cjk/NotoSansCJKsc-Regular.otf"],
|
|
"media-fonts/noto-cjk", 2);
|
|
}
|
|
|
|
check_missing(\%map);
|
|
|
|
return if (!$need && !$optional);
|
|
|
|
printf("You should run:\n\n");
|
|
|
|
my $imagemagick = "media-gfx/imagemagick svg png";
|
|
my $cairo = "media-gfx/graphviz cairo pdf";
|
|
my $portage_imagemagick = "/etc/portage/package.use/imagemagick";
|
|
my $portage_cairo = "/etc/portage/package.use/graphviz";
|
|
|
|
if (qx(cat $portage_imagemagick) ne "$imagemagick\n") {
|
|
printf("\tsudo su -c 'echo \"$imagemagick\" > $portage_imagemagick'\n")
|
|
}
|
|
if (qx(cat $portage_cairo) ne "$cairo\n") {
|
|
printf("\tsudo su -c 'echo \"$cairo\" > $portage_cairo'\n");
|
|
}
|
|
|
|
printf("\tsudo emerge --ask $install\n");
|
|
|
|
}
|
|
|
|
sub check_distros()
|
|
{
|
|
# Distro-specific hints
|
|
if ($system_release =~ /Red Hat Enterprise Linux/) {
|
|
give_redhat_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /CentOS/) {
|
|
give_redhat_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /Scientific Linux/) {
|
|
give_redhat_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /Oracle Linux Server/) {
|
|
give_redhat_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /Fedora/) {
|
|
give_redhat_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /Ubuntu/) {
|
|
give_debian_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /Debian/) {
|
|
give_debian_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /openSUSE/) {
|
|
give_opensuse_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /Mageia/) {
|
|
give_mageia_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /Arch Linux/) {
|
|
give_arch_linux_hints;
|
|
return;
|
|
}
|
|
if ($system_release =~ /Gentoo/) {
|
|
give_gentoo_hints;
|
|
return;
|
|
}
|
|
|
|
#
|
|
# Fall-back to generic hint code for other distros
|
|
# That's far from ideal, specially for LaTeX dependencies.
|
|
#
|
|
my %map = (
|
|
"sphinx-build" => "sphinx"
|
|
);
|
|
check_missing_tex(2) if ($pdf);
|
|
check_missing(\%map);
|
|
print "I don't know distro $system_release.\n";
|
|
print "So, I can't provide you a hint with the install procedure.\n";
|
|
print "There are likely missing dependencies.\n";
|
|
}
|
|
|
|
#
|
|
# Common dependencies
|
|
#
|
|
|
|
sub deactivate_help()
|
|
{
|
|
printf "\tIf you want to exit the virtualenv, you can use:\n";
|
|
printf "\tdeactivate\n";
|
|
}
|
|
|
|
sub check_needs()
|
|
{
|
|
# Check for needed programs/tools
|
|
check_sphinx();
|
|
|
|
if ($system_release) {
|
|
print "Detected OS: $system_release.\n\n";
|
|
} else {
|
|
print "Unknown OS\n\n";
|
|
}
|
|
|
|
print "To upgrade Sphinx, use:\n\n" if ($rec_sphinx_upgrade);
|
|
|
|
# Check for needed programs/tools
|
|
check_perl_module("Pod::Usage", 0);
|
|
check_program("make", 0);
|
|
check_program("gcc", 0);
|
|
check_python_module("sphinx_rtd_theme", 1) if (!$virtualenv);
|
|
check_program("dot", 1);
|
|
check_program("convert", 1);
|
|
|
|
# Extra PDF files - should use 2 for is_optional
|
|
check_program("xelatex", 2) if ($pdf);
|
|
check_program("rsvg-convert", 2) if ($pdf);
|
|
check_program("latexmk", 2) if ($pdf);
|
|
|
|
check_distros();
|
|
|
|
if ($need_symlink) {
|
|
printf "\tsudo ln -sf %s /usr/bin/sphinx-build\n\n",
|
|
which("sphinx-build-3");
|
|
}
|
|
if ($need_sphinx || $rec_sphinx_upgrade) {
|
|
my $min_activate = "$ENV{'PWD'}/${virtenv_prefix}${min_version}/bin/activate";
|
|
my @activates = glob "$ENV{'PWD'}/${virtenv_prefix}*/bin/activate";
|
|
|
|
@activates = sort {$b cmp $a} @activates;
|
|
|
|
if ($need_sphinx && scalar @activates > 0 && $activates[0] ge $min_activate) {
|
|
printf "\nNeed to activate a compatible Sphinx version on virtualenv with:\n";
|
|
printf "\t. $activates[0]\n";
|
|
deactivate_help();
|
|
exit (1);
|
|
} else {
|
|
my $rec_activate = "$virtenv_dir/bin/activate";
|
|
my $virtualenv = findprog("virtualenv-3");
|
|
my $rec_python3 = "";
|
|
$virtualenv = findprog("virtualenv-3.5") if (!$virtualenv);
|
|
$virtualenv = findprog("virtualenv") if (!$virtualenv);
|
|
$virtualenv = "virtualenv" if (!$virtualenv);
|
|
|
|
my $rel = "";
|
|
if (index($system_release, "Ubuntu") != -1) {
|
|
$rel = $1 if ($system_release =~ /Ubuntu\s+(\d+)[.]/);
|
|
if ($rel && $rel >= 16) {
|
|
$rec_python3 = " -p python3";
|
|
}
|
|
}
|
|
if (index($system_release, "Debian") != -1) {
|
|
$rel = $1 if ($system_release =~ /Debian\s+(\d+)/);
|
|
if ($rel && $rel >= 7) {
|
|
$rec_python3 = " -p python3";
|
|
}
|
|
}
|
|
|
|
printf "\t$virtualenv$rec_python3 $virtenv_dir\n";
|
|
printf "\t. $rec_activate\n";
|
|
printf "\tpip install -r $requirement_file\n";
|
|
deactivate_help();
|
|
|
|
$need++ if (!$rec_sphinx_upgrade);
|
|
}
|
|
}
|
|
printf "\n";
|
|
|
|
print "All optional dependencies are met.\n" if (!$optional);
|
|
|
|
if ($need == 1) {
|
|
die "Can't build as $need mandatory dependency is missing";
|
|
} elsif ($need) {
|
|
die "Can't build as $need mandatory dependencies are missing";
|
|
}
|
|
|
|
print "Needed package dependencies are met.\n";
|
|
}
|
|
|
|
#
|
|
# Main
|
|
#
|
|
|
|
while (@ARGV) {
|
|
my $arg = shift(@ARGV);
|
|
|
|
if ($arg eq "--no-virtualenv") {
|
|
$virtualenv = 0;
|
|
} elsif ($arg eq "--no-pdf"){
|
|
$pdf = 0;
|
|
} elsif ($arg eq "--version-check"){
|
|
$version_check = 1;
|
|
} else {
|
|
print "Usage:\n\t$0 <--no-virtualenv> <--no-pdf> <--version-check>\n\n";
|
|
print "Where:\n";
|
|
print "\t--no-virtualenv\t- Recommend installing Sphinx instead of using a virtualenv\n";
|
|
print "\t--version-check\t- if version is compatible, don't check for missing dependencies\n";
|
|
print "\t--no-pdf\t- don't check for dependencies required to build PDF docs\n\n";
|
|
exit -1;
|
|
}
|
|
}
|
|
|
|
#
|
|
# Determine the system type. There's no standard unique way that would
|
|
# work with all distros with a minimal package install. So, several
|
|
# methods are used here.
|
|
#
|
|
# By default, it will use lsb_release function. If not available, it will
|
|
# fail back to reading the known different places where the distro name
|
|
# is stored
|
|
#
|
|
|
|
$system_release = qx(lsb_release -d) if which("lsb_release");
|
|
$system_release =~ s/Description:\s*// if ($system_release);
|
|
$system_release = catcheck("/etc/system-release") if !$system_release;
|
|
$system_release = catcheck("/etc/redhat-release") if !$system_release;
|
|
$system_release = catcheck("/etc/lsb-release") if !$system_release;
|
|
$system_release = catcheck("/etc/gentoo-release") if !$system_release;
|
|
|
|
# This seems more common than LSB these days
|
|
if (!$system_release) {
|
|
my %os_var;
|
|
if (open IN, "cat /etc/os-release|") {
|
|
while (<IN>) {
|
|
if (m/^([\w\d\_]+)=\"?([^\"]*)\"?\n/) {
|
|
$os_var{$1}=$2;
|
|
}
|
|
}
|
|
$system_release = $os_var{"NAME"};
|
|
if (defined($os_var{"VERSION_ID"})) {
|
|
$system_release .= " " . $os_var{"VERSION_ID"} if (defined($os_var{"VERSION_ID"}));
|
|
} else {
|
|
$system_release .= " " . $os_var{"VERSION"};
|
|
}
|
|
}
|
|
}
|
|
$system_release = catcheck("/etc/issue") if !$system_release;
|
|
$system_release =~ s/\s+$//;
|
|
|
|
check_needs;
|