xref: /openbmc/linux/scripts/sphinx-pre-install (revision 5b394b2d) 
1#!/usr/bin/perl
2use strict;
3
4# Copyright (c) 2017 Mauro Carvalho Chehab <mchehab@kernel.org>
5#
6# This program is free software; you can redistribute it and/or
7# modify it under the terms of the GNU General Public License
8# as published by the Free Software Foundation; either version 2
9# of the License, or (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15
16my $virtenv_dir = "sphinx_1.4";
17my $requirement_file = "Documentation/sphinx/requirements.txt";
18
19#
20# Static vars
21#
22
23my %missing;
24my $system_release;
25my $need = 0;
26my $optional = 0;
27my $need_symlink = 0;
28my $need_sphinx = 0;
29my $install = "";
30
31#
32# Command line arguments
33#
34
35my $pdf = 1;
36my $virtualenv = 1;
37
38#
39# List of required texlive packages on Fedora and OpenSuse
40#
41
42my %texlive = (
43	'amsfonts.sty'       => 'texlive-amsfonts',
44	'amsmath.sty'        => 'texlive-amsmath',
45	'amssymb.sty'        => 'texlive-amsfonts',
46	'amsthm.sty'         => 'texlive-amscls',
47	'anyfontsize.sty'    => 'texlive-anyfontsize',
48	'atbegshi.sty'       => 'texlive-oberdiek',
49	'bm.sty'             => 'texlive-tools',
50	'capt-of.sty'        => 'texlive-capt-of',
51	'cmap.sty'           => 'texlive-cmap',
52	'ecrm1000.tfm'       => 'texlive-ec',
53	'eqparbox.sty'       => 'texlive-eqparbox',
54	'eu1enc.def'         => 'texlive-euenc',
55	'fancybox.sty'       => 'texlive-fancybox',
56	'fancyvrb.sty'       => 'texlive-fancyvrb',
57	'float.sty'          => 'texlive-float',
58	'fncychap.sty'       => 'texlive-fncychap',
59	'footnote.sty'       => 'texlive-mdwtools',
60	'framed.sty'         => 'texlive-framed',
61	'luatex85.sty'       => 'texlive-luatex85',
62	'multirow.sty'       => 'texlive-multirow',
63	'needspace.sty'      => 'texlive-needspace',
64	'palatino.sty'       => 'texlive-psnfss',
65	'parskip.sty'        => 'texlive-parskip',
66	'polyglossia.sty'    => 'texlive-polyglossia',
67	'tabulary.sty'       => 'texlive-tabulary',
68	'threeparttable.sty' => 'texlive-threeparttable',
69	'titlesec.sty'       => 'texlive-titlesec',
70	'ucs.sty'            => 'texlive-ucs',
71	'upquote.sty'        => 'texlive-upquote',
72	'wrapfig.sty'        => 'texlive-wrapfig',
73);
74
75#
76# Subroutines that checks if a feature exists
77#
78
79sub check_missing(%)
80{
81	my %map = %{$_[0]};
82
83	foreach my $prog (sort keys %missing) {
84		my $is_optional = $missing{$prog};
85
86		if ($is_optional) {
87			print "Warning: better to also install \"$prog\".\n";
88		} else {
89			print "ERROR: please install \"$prog\", otherwise, build won't work.\n";
90		}
91		if (defined($map{$prog})) {
92			$install .= " " . $map{$prog};
93		} else {
94			$install .= " " . $prog;
95		}
96	}
97
98	$install =~ s/^\s//;
99}
100
101sub add_package($$)
102{
103	my $package = shift;
104	my $is_optional = shift;
105
106	$missing{$package} = $is_optional;
107	if ($is_optional) {
108		$optional++;
109	} else {
110		$need++;
111	}
112}
113
114sub check_missing_file($$$)
115{
116	my $file = shift;
117	my $package = shift;
118	my $is_optional = shift;
119
120	return if(-e $file);
121
122	add_package($package, $is_optional);
123}
124
125sub findprog($)
126{
127	foreach(split(/:/, $ENV{PATH})) {
128		return "$_/$_[0]" if(-x "$_/$_[0]");
129	}
130}
131
132sub check_program($$)
133{
134	my $prog = shift;
135	my $is_optional = shift;
136
137	return if findprog($prog);
138
139	add_package($prog, $is_optional);
140}
141
142sub check_perl_module($$)
143{
144	my $prog = shift;
145	my $is_optional = shift;
146
147	my $err = system("perl -M$prog -e 1 2>/dev/null /dev/null");
148	return if ($err == 0);
149
150	add_package($prog, $is_optional);
151}
152
153sub check_python_module($$)
154{
155	my $prog = shift;
156	my $is_optional = shift;
157
158	my $err = system("python3 -c 'import $prog' 2>/dev/null /dev/null");
159	return if ($err == 0);
160	my $err = system("python -c 'import $prog' 2>/dev/null /dev/null");
161	return if ($err == 0);
162
163	add_package($prog, $is_optional);
164}
165
166sub check_rpm_missing($$)
167{
168	my @pkgs = @{$_[0]};
169	my $is_optional = $_[1];
170
171	foreach my $prog(@pkgs) {
172		my $err = system("rpm -q '$prog' 2>/dev/null >/dev/null");
173		add_package($prog, $is_optional) if ($err);
174	}
175}
176
177sub check_pacman_missing($$)
178{
179	my @pkgs = @{$_[0]};
180	my $is_optional = $_[1];
181
182	foreach my $prog(@pkgs) {
183		my $err = system("pacman -Q '$prog' 2>/dev/null >/dev/null");
184		add_package($prog, $is_optional) if ($err);
185	}
186}
187
188sub check_missing_tex($)
189{
190	my $is_optional = shift;
191	my $kpsewhich = findprog("kpsewhich");
192
193	foreach my $prog(keys %texlive) {
194		my $package = $texlive{$prog};
195		if (!$kpsewhich) {
196			add_package($package, $is_optional);
197			next;
198		}
199		my $file = qx($kpsewhich $prog);
200		add_package($package, $is_optional) if ($file =~ /^\s*$/);
201	}
202}
203
204sub check_sphinx()
205{
206	return if findprog("sphinx-build");
207
208	if (findprog("sphinx-build-3")) {
209		$need_symlink = 1;
210		return;
211	}
212
213	if ($virtualenv) {
214		my $prog = findprog("virtualenv-3");
215		$prog = findprog("virtualenv-3.5") if (!$prog);
216
217		check_program("virtualenv", 0) if (!$prog);
218		$need_sphinx = 1;
219	} else {
220		add_package("python-sphinx", 0);
221	}
222}
223
224#
225# Ancillary subroutines
226#
227
228sub catcheck($)
229{
230  my $res = "";
231  $res = qx(cat $_[0]) if (-r $_[0]);
232  return $res;
233}
234
235sub which($)
236{
237	my $file = shift;
238	my @path = split ":", $ENV{PATH};
239
240	foreach my $dir(@path) {
241		my $name = $dir.'/'.$file;
242		return $name if (-x $name );
243	}
244	return undef;
245}
246
247#
248# Subroutines that check distro-specific hints
249#
250
251sub give_debian_hints()
252{
253	my %map = (
254		"python-sphinx"		=> "python3-sphinx",
255		"sphinx_rtd_theme"	=> "python3-sphinx-rtd-theme",
256		"virtualenv"		=> "virtualenv",
257		"dot"			=> "graphviz",
258		"convert"		=> "imagemagick",
259		"Pod::Usage"		=> "perl-modules",
260		"xelatex"		=> "texlive-xetex",
261		"rsvg-convert"		=> "librsvg2-bin",
262	);
263
264	if ($pdf) {
265		check_missing_file("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf",
266				   "fonts-dejavu", 1);
267	}
268
269	check_program("dvipng", 1) if ($pdf);
270	check_missing(\%map);
271
272	return if (!$need && !$optional);
273	printf("You should run:\n\n\tsudo apt-get install $install\n");
274}
275
276sub give_redhat_hints()
277{
278	my %map = (
279		"python-sphinx"		=> "python3-sphinx",
280		"sphinx_rtd_theme"	=> "python3-sphinx_rtd_theme",
281		"virtualenv"		=> "python3-virtualenv",
282		"dot"			=> "graphviz",
283		"convert"		=> "ImageMagick",
284		"Pod::Usage"		=> "perl-Pod-Usage",
285		"xelatex"		=> "texlive-xetex-bin",
286		"rsvg-convert"		=> "librsvg2-tools",
287	);
288
289	my @fedora26_opt_pkgs = (
290		"graphviz-gd",		# Fedora 26: needed for PDF support
291	);
292
293	my @fedora_tex_pkgs = (
294		"texlive-collection-fontsrecommended",
295		"texlive-collection-latex",
296		"dejavu-sans-fonts",
297		"dejavu-serif-fonts",
298		"dejavu-sans-mono-fonts",
299	);
300
301	#
302	# Checks valid for RHEL/CentOS version 7.x.
303	#
304	if (! $system_release =~ /Fedora/) {
305		$map{"virtualenv"} = "python-virtualenv";
306	}
307
308	my $release;
309
310	$release = $1 if ($system_release =~ /Fedora\s+release\s+(\d+)/);
311
312	check_rpm_missing(\@fedora26_opt_pkgs, 1) if ($pdf && $release >= 26);
313	check_rpm_missing(\@fedora_tex_pkgs, 1) if ($pdf);
314	check_missing_tex(1) if ($pdf);
315	check_missing(\%map);
316
317	return if (!$need && !$optional);
318
319	if ($release >= 18) {
320		# dnf, for Fedora 18+
321		printf("You should run:\n\n\tsudo dnf install -y $install\n");
322	} else {
323		# yum, for RHEL (and clones) or Fedora version < 18
324		printf("You should run:\n\n\tsudo yum install -y $install\n");
325	}
326}
327
328sub give_opensuse_hints()
329{
330	my %map = (
331		"python-sphinx"		=> "python3-sphinx",
332		"sphinx_rtd_theme"	=> "python3-sphinx_rtd_theme",
333		"virtualenv"		=> "python3-virtualenv",
334		"dot"			=> "graphviz",
335		"convert"		=> "ImageMagick",
336		"Pod::Usage"		=> "perl-Pod-Usage",
337		"xelatex"		=> "texlive-xetex-bin",
338		"rsvg-convert"		=> "rsvg-view",
339	);
340
341	my @suse_tex_pkgs = (
342		"texlive-babel-english",
343		"texlive-caption",
344		"texlive-colortbl",
345		"texlive-courier",
346		"texlive-dvips",
347		"texlive-helvetic",
348		"texlive-makeindex",
349		"texlive-metafont",
350		"texlive-metapost",
351		"texlive-palatino",
352		"texlive-preview",
353		"texlive-times",
354		"texlive-zapfchan",
355		"texlive-zapfding",
356	);
357
358	check_rpm_missing(\@suse_tex_pkgs, 1) if ($pdf);
359	check_missing_tex(1) if ($pdf);
360	check_missing(\%map);
361
362	return if (!$need && !$optional);
363	printf("You should run:\n\n\tsudo zypper install --no-recommends $install\n");
364}
365
366sub give_mageia_hints()
367{
368	my %map = (
369		"python-sphinx"		=> "python3-sphinx",
370		"sphinx_rtd_theme"	=> "python3-sphinx_rtd_theme",
371		"virtualenv"		=> "python3-virtualenv",
372		"dot"			=> "graphviz",
373		"convert"		=> "ImageMagick",
374		"Pod::Usage"		=> "perl-Pod-Usage",
375		"xelatex"		=> "texlive",
376		"rsvg-convert"		=> "librsvg2-tools",
377	);
378
379	my @tex_pkgs = (
380		"texlive-fontsextra",
381	);
382
383	check_rpm_missing(\@tex_pkgs, 1) if ($pdf);
384	check_missing(\%map);
385
386	return if (!$need && !$optional);
387	printf("You should run:\n\n\tsudo urpmi $install\n");
388}
389
390sub give_arch_linux_hints()
391{
392	my %map = (
393		"sphinx_rtd_theme"	=> "python-sphinx_rtd_theme",
394		"virtualenv"		=> "python-virtualenv",
395		"dot"			=> "graphviz",
396		"convert"		=> "imagemagick",
397		"xelatex"		=> "texlive-bin",
398		"rsvg-convert"		=> "extra/librsvg",
399	);
400
401	my @archlinux_tex_pkgs = (
402		"texlive-core",
403		"texlive-latexextra",
404		"ttf-dejavu",
405	);
406	check_pacman_missing(\@archlinux_tex_pkgs, 1) if ($pdf);
407	check_missing(\%map);
408
409	return if (!$need && !$optional);
410	printf("You should run:\n\n\tsudo pacman -S $install\n");
411}
412
413sub give_gentoo_hints()
414{
415	my %map = (
416		"sphinx_rtd_theme"	=> "dev-python/sphinx_rtd_theme",
417		"virtualenv"		=> "dev-python/virtualenv",
418		"dot"			=> "media-gfx/graphviz",
419		"convert"		=> "media-gfx/imagemagick",
420		"xelatex"		=> "dev-texlive/texlive-xetex media-fonts/dejavu",
421		"rsvg-convert"		=> "gnome-base/librsvg",
422	);
423
424	check_missing_file("/usr/share/fonts/dejavu/DejaVuSans.ttf",
425			   "media-fonts/dejavu", 1) if ($pdf);
426
427	check_missing(\%map);
428
429	return if (!$need && !$optional);
430
431	printf("You should run:\n\n");
432	printf("\tsudo su -c 'echo \"media-gfx/imagemagick svg png\" > /etc/portage/package.use/imagemagick'\n");
433	printf("\tsudo su -c 'echo \"media-gfx/graphviz cairo pdf\" > /etc/portage/package.use/graphviz'\n");
434	printf("\tsudo emerge --ask $install\n");
435
436}
437
438sub check_distros()
439{
440	# Distro-specific hints
441	if ($system_release =~ /Red Hat Enterprise Linux/) {
442		give_redhat_hints;
443		return;
444	}
445	if ($system_release =~ /CentOS/) {
446		give_redhat_hints;
447		return;
448	}
449	if ($system_release =~ /Scientific Linux/) {
450		give_redhat_hints;
451		return;
452	}
453	if ($system_release =~ /Oracle Linux Server/) {
454		give_redhat_hints;
455		return;
456	}
457	if ($system_release =~ /Fedora/) {
458		give_redhat_hints;
459		return;
460	}
461	if ($system_release =~ /Ubuntu/) {
462		give_debian_hints;
463		return;
464	}
465	if ($system_release =~ /Debian/) {
466		give_debian_hints;
467		return;
468	}
469	if ($system_release =~ /openSUSE/) {
470		give_opensuse_hints;
471		return;
472	}
473	if ($system_release =~ /Mageia/) {
474		give_mageia_hints;
475		return;
476	}
477	if ($system_release =~ /Arch Linux/) {
478		give_arch_linux_hints;
479		return;
480	}
481	if ($system_release =~ /Gentoo/) {
482		give_gentoo_hints;
483		return;
484	}
485
486	#
487	# Fall-back to generic hint code for other distros
488	# That's far from ideal, specially for LaTeX dependencies.
489	#
490	my %map = (
491		"sphinx-build" => "sphinx"
492	);
493	check_missing_tex(1) if ($pdf);
494	check_missing(\%map);
495	print "I don't know distro $system_release.\n";
496	print "So, I can't provide you a hint with the install procedure.\n";
497	print "There are likely missing dependencies.\n";
498}
499
500#
501# Common dependencies
502#
503
504sub check_needs()
505{
506	if ($system_release) {
507		print "Detected OS: $system_release.\n";
508	} else {
509		print "Unknown OS\n";
510	}
511
512	# RHEL 7.x and clones have Sphinx version 1.1.x and incomplete texlive
513	if (($system_release =~ /Red Hat Enterprise Linux/) ||
514	    ($system_release =~ /CentOS/) ||
515	    ($system_release =~ /Scientific Linux/) ||
516	    ($system_release =~ /Oracle Linux Server/)) {
517		$virtualenv = 1;
518		$pdf = 0;
519
520		printf("NOTE: On this distro, Sphinx and TexLive shipped versions are incompatible\n");
521		printf("with doc build. So, use Sphinx via a Python virtual environment.\n\n");
522		printf("This script can't install a TexLive version that would provide PDF.\n");
523	}
524
525	# Check for needed programs/tools
526	check_sphinx();
527	check_perl_module("Pod::Usage", 0);
528	check_program("make", 0);
529	check_program("gcc", 0);
530	check_python_module("sphinx_rtd_theme", 1) if (!$virtualenv);
531	check_program("xelatex", 1) if ($pdf);
532	check_program("dot", 1);
533	check_program("convert", 1);
534	check_program("rsvg-convert", 1) if ($pdf);
535
536	check_distros();
537
538	if ($need_symlink) {
539		printf "\tsudo ln -sf %s /usr/bin/sphinx-build\n\n",
540		       which("sphinx-build-3");
541	}
542	if ($need_sphinx) {
543		my $activate = "$virtenv_dir/bin/activate";
544		if (-e "$ENV{'PWD'}/$activate") {
545			printf "\nNeed to activate virtualenv with:\n";
546			printf "\t. $activate\n";
547		} else {
548			my $virtualenv = findprog("virtualenv-3");
549			$virtualenv = findprog("virtualenv-3.5") if (!$virtualenv);
550			$virtualenv = findprog("virtualenv") if (!$virtualenv);
551			$virtualenv = "virtualenv" if (!$virtualenv);
552
553			printf "\t$virtualenv $virtenv_dir\n";
554			printf "\t. $activate\n";
555			printf "\tpip install -r $requirement_file\n";
556			$need++;
557		}
558	}
559	printf "\n";
560
561	print "All optional dependenties are met.\n" if (!$optional);
562
563	if ($need == 1) {
564		die "Can't build as $need mandatory dependency is missing";
565	} elsif ($need) {
566		die "Can't build as $need mandatory dependencies are missing";
567	}
568
569	print "Needed package dependencies are met.\n";
570}
571
572#
573# Main
574#
575
576while (@ARGV) {
577	my $arg = shift(@ARGV);
578
579	if ($arg eq "--no-virtualenv") {
580		$virtualenv = 0;
581	} elsif ($arg eq "--no-pdf"){
582		$pdf = 0;
583	} else {
584		print "Usage:\n\t$0 <--no-virtualenv> <--no-pdf>\n\n";
585		exit -1;
586	}
587}
588
589#
590# Determine the system type. There's no standard unique way that would
591# work with all distros with a minimal package install. So, several
592# methods are used here.
593#
594# By default, it will use lsb_release function. If not available, it will
595# fail back to reading the known different places where the distro name
596# is stored
597#
598
599$system_release = qx(lsb_release -d) if which("lsb_release");
600$system_release =~ s/Description:\s*// if ($system_release);
601$system_release = catcheck("/etc/system-release") if !$system_release;
602$system_release = catcheck("/etc/redhat-release") if !$system_release;
603$system_release = catcheck("/etc/lsb-release") if !$system_release;
604$system_release = catcheck("/etc/gentoo-release") if !$system_release;
605$system_release = catcheck("/etc/issue") if !$system_release;
606$system_release =~ s/\s+$//;
607
608check_needs;
609