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1#!/usr/bin/perl
2# SPDX-License-Identifier: GPL-2.0-or-later
3use strict;
4
5# Copyright (c) 2017-2020 Mauro Carvalho Chehab <mchehab@kernel.org>
6#
7
8my $prefix = "./";
9$prefix = "$ENV{'srctree'}/" if ($ENV{'srctree'});
10
11my $conf = $prefix . "Documentation/conf.py";
12my $requirement_file = $prefix . "Documentation/sphinx/requirements.txt";
13my $virtenv_prefix = "sphinx_";
14
15#
16# Static vars
17#
18
19my %missing;
20my $system_release;
21my $need = 0;
22my $optional = 0;
23my $need_symlink = 0;
24my $need_sphinx = 0;
25my $need_venv = 0;
26my $need_virtualenv = 0;
27my $rec_sphinx_upgrade = 0;
28my $install = "";
29my $virtenv_dir = "";
30my $python_cmd = "";
31my $min_version;
32my $cur_version;
33my $rec_version = "1.7.9"; # PDF won't build here
34my $min_pdf_version = "2.4.4"; # Min version where pdf builds
35
36#
37# Command line arguments
38#
39
40my $pdf = 1;
41my $virtualenv = 1;
42my $version_check = 0;
43
44#
45# List of required texlive packages on Fedora and OpenSuse
46#
47
48my %texlive = (
49 'amsfonts.sty' => 'texlive-amsfonts',
50 'amsmath.sty' => 'texlive-amsmath',
51 'amssymb.sty' => 'texlive-amsfonts',
52 'amsthm.sty' => 'texlive-amscls',
53 'anyfontsize.sty' => 'texlive-anyfontsize',
54 'atbegshi.sty' => 'texlive-oberdiek',
55 'bm.sty' => 'texlive-tools',
56 'capt-of.sty' => 'texlive-capt-of',
57 'cmap.sty' => 'texlive-cmap',
58 'ecrm1000.tfm' => 'texlive-ec',
59 'eqparbox.sty' => 'texlive-eqparbox',
60 'eu1enc.def' => 'texlive-euenc',
61 'fancybox.sty' => 'texlive-fancybox',
62 'fancyvrb.sty' => 'texlive-fancyvrb',
63 'float.sty' => 'texlive-float',
64 'fncychap.sty' => 'texlive-fncychap',
65 'footnote.sty' => 'texlive-mdwtools',
66 'framed.sty' => 'texlive-framed',
67 'luatex85.sty' => 'texlive-luatex85',
68 'multirow.sty' => 'texlive-multirow',
69 'needspace.sty' => 'texlive-needspace',
70 'palatino.sty' => 'texlive-psnfss',
71 'parskip.sty' => 'texlive-parskip',
72 'polyglossia.sty' => 'texlive-polyglossia',
73 'tabulary.sty' => 'texlive-tabulary',
74 'threeparttable.sty' => 'texlive-threeparttable',
75 'titlesec.sty' => 'texlive-titlesec',
76 'ucs.sty' => 'texlive-ucs',
77 'upquote.sty' => 'texlive-upquote',
78 'wrapfig.sty' => 'texlive-wrapfig',
79);
80
81#
82# Subroutines that checks if a feature exists
83#
84
85sub check_missing(%)
86{
87 my %map = %{$_[0]};
88
89 foreach my $prog (sort keys %missing) {
90 my $is_optional = $missing{$prog};
91
92 # At least on some LTS distros like CentOS 7, texlive doesn't
93 # provide all packages we need. When such distros are
94 # detected, we have to disable PDF output.
95 #
96 # So, we need to ignore the packages that distros would
97 # need for LaTeX to work
98 if ($is_optional == 2 && !$pdf) {
99 $optional--;
100 next;
101 }
102
103 if ($is_optional) {
104 print "Warning: better to also install \"$prog\".\n";
105 } else {
106 print "ERROR: please install \"$prog\", otherwise, build won't work.\n";
107 }
108 if (defined($map{$prog})) {
109 $install .= " " . $map{$prog};
110 } else {
111 $install .= " " . $prog;
112 }
113 }
114
115 $install =~ s/^\s//;
116}
117
118sub add_package($$)
119{
120 my $package = shift;
121 my $is_optional = shift;
122
123 $missing{$package} = $is_optional;
124 if ($is_optional) {
125 $optional++;
126 } else {
127 $need++;
128 }
129}
130
131sub check_missing_file($$$)
132{
133 my $files = shift;
134 my $package = shift;
135 my $is_optional = shift;
136
137 for (@$files) {
138 return if(-e $_);
139 }
140
141 add_package($package, $is_optional);
142}
143
144sub findprog($)
145{
146 foreach(split(/:/, $ENV{PATH})) {
147 return "$_/$_[0]" if(-x "$_/$_[0]");
148 }
149}
150
151sub find_python_no_venv()
152{
153 my $prog = shift;
154
155 my $cur_dir = qx(pwd);
156 $cur_dir =~ s/\s+$//;
157
158 foreach my $dir (split(/:/, $ENV{PATH})) {
159 next if ($dir =~ m,($cur_dir)/sphinx,);
160 return "$dir/python3" if(-x "$dir/python3");
161 }
162 foreach my $dir (split(/:/, $ENV{PATH})) {
163 next if ($dir =~ m,($cur_dir)/sphinx,);
164 return "$dir/python" if(-x "$dir/python");
165 }
166 return "python";
167}
168
169sub check_program($$)
170{
171 my $prog = shift;
172 my $is_optional = shift;
173
174 return $prog if findprog($prog);
175
176 add_package($prog, $is_optional);
177}
178
179sub check_perl_module($$)
180{
181 my $prog = shift;
182 my $is_optional = shift;
183
184 my $err = system("perl -M$prog -e 1 2>/dev/null /dev/null");
185 return if ($err == 0);
186
187 add_package($prog, $is_optional);
188}
189
190sub check_python_module($$)
191{
192 my $prog = shift;
193 my $is_optional = shift;
194
195 return if (!$python_cmd);
196
197 my $err = system("$python_cmd -c 'import $prog' 2>/dev/null /dev/null");
198 return if ($err == 0);
199
200 add_package($prog, $is_optional);
201}
202
203sub check_rpm_missing($$)
204{
205 my @pkgs = @{$_[0]};
206 my $is_optional = $_[1];
207
208 foreach my $prog(@pkgs) {
209 my $err = system("rpm -q '$prog' 2>/dev/null >/dev/null");
210 add_package($prog, $is_optional) if ($err);
211 }
212}
213
214sub check_pacman_missing($$)
215{
216 my @pkgs = @{$_[0]};
217 my $is_optional = $_[1];
218
219 foreach my $prog(@pkgs) {
220 my $err = system("pacman -Q '$prog' 2>/dev/null >/dev/null");
221 add_package($prog, $is_optional) if ($err);
222 }
223}
224
225sub check_missing_tex($)
226{
227 my $is_optional = shift;
228 my $kpsewhich = findprog("kpsewhich");
229
230 foreach my $prog(keys %texlive) {
231 my $package = $texlive{$prog};
232 if (!$kpsewhich) {
233 add_package($package, $is_optional);
234 next;
235 }
236 my $file = qx($kpsewhich $prog);
237 add_package($package, $is_optional) if ($file =~ /^\s*$/);
238 }
239}
240
241sub get_sphinx_fname()
242{
243 my $fname = "sphinx-build";
244 return $fname if findprog($fname);
245
246 $fname = "sphinx-build-3";
247 if (findprog($fname)) {
248 $need_symlink = 1;
249 return $fname;
250 }
251
252 return "";
253}
254
255sub get_sphinx_version($)
256{
257 my $cmd = shift;
258 my $ver;
259
260 open IN, "$cmd --version 2>&1 |";
261 while (<IN>) {
262 if (m/^\s*sphinx-build\s+([\d\.]+)(\+\/[\da-f]+)?$/) {
263 $ver=$1;
264 last;
265 }
266 # Sphinx 1.2.x uses a different format
267 if (m/^\s*Sphinx.*\s+([\d\.]+)$/) {
268 $ver=$1;
269 last;
270 }
271 }
272 close IN;
273 return $ver;
274}
275
276sub check_sphinx()
277{
278 my $default_version;
279
280 open IN, $conf or die "Can't open $conf";
281 while (<IN>) {
282 if (m/^\s*needs_sphinx\s*=\s*[\'\"]([\d\.]+)[\'\"]/) {
283 $min_version=$1;
284 last;
285 }
286 }
287 close IN;
288
289 die "Can't get needs_sphinx version from $conf" if (!$min_version);
290
291 open IN, $requirement_file or die "Can't open $requirement_file";
292 while (<IN>) {
293 if (m/^\s*Sphinx\s*==\s*([\d\.]+)$/) {
294 $default_version=$1;
295 last;
296 }
297 }
298 close IN;
299
300 die "Can't get default sphinx version from $requirement_file" if (!$default_version);
301
302 $virtenv_dir = $virtenv_prefix . $default_version;
303
304 my $sphinx = get_sphinx_fname();
305 if ($sphinx eq "") {
306 $need_sphinx = 1;
307 return;
308 }
309
310 $cur_version = get_sphinx_version($sphinx);
311 die ("$sphinx returned an error") if (!$cur_version);
312
313 die "$sphinx didn't return its version" if (!$cur_version);
314
315 if ($cur_version lt $min_version) {
316 printf "ERROR: Sphinx version is %s. It should be >= %s (recommended >= %s)\n",
317 $cur_version, $min_version, $default_version;
318 $need_sphinx = 1;
319 return;
320 }
321
322 if ($cur_version lt $rec_version) {
323 $rec_sphinx_upgrade = 1;
324 return;
325 }
326
327 # On version check mode, just assume Sphinx has all mandatory deps
328 exit (0) if ($version_check);
329}
330
331#
332# Ancillary subroutines
333#
334
335sub catcheck($)
336{
337 my $res = "";
338 $res = qx(cat $_[0]) if (-r $_[0]);
339 return $res;
340}
341
342sub which($)
343{
344 my $file = shift;
345 my @path = split ":", $ENV{PATH};
346
347 foreach my $dir(@path) {
348 my $name = $dir.'/'.$file;
349 return $name if (-x $name );
350 }
351 return undef;
352}
353
354#
355# Subroutines that check distro-specific hints
356#
357
358sub give_debian_hints()
359{
360 my %map = (
361 "python-sphinx" => "python3-sphinx",
362 "sphinx_rtd_theme" => "python3-sphinx-rtd-theme",
363 "ensurepip" => "python3-venv",
364 "virtualenv" => "virtualenv",
365 "dot" => "graphviz",
366 "convert" => "imagemagick",
367 "Pod::Usage" => "perl-modules",
368 "xelatex" => "texlive-xetex",
369 "rsvg-convert" => "librsvg2-bin",
370 );
371
372 if ($pdf) {
373 check_missing_file(["/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"],
374 "fonts-dejavu", 2);
375
376 check_missing_file(["/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc",
377 "/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc",
378 "/usr/share/fonts/opentype/noto/NotoSerifCJK-Regular.ttc"],
379 "fonts-noto-cjk", 2);
380 }
381
382 check_program("dvipng", 2) if ($pdf);
383 check_missing(\%map);
384
385 return if (!$need && !$optional);
386 printf("You should run:\n\n\tsudo apt-get install $install\n");
387}
388
389sub give_redhat_hints()
390{
391 my %map = (
392 "python-sphinx" => "python3-sphinx",
393 "sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
394 "virtualenv" => "python3-virtualenv",
395 "dot" => "graphviz",
396 "convert" => "ImageMagick",
397 "Pod::Usage" => "perl-Pod-Usage",
398 "xelatex" => "texlive-xetex-bin",
399 "rsvg-convert" => "librsvg2-tools",
400 );
401
402 my @fedora26_opt_pkgs = (
403 "graphviz-gd", # Fedora 26: needed for PDF support
404 );
405
406 my @fedora_tex_pkgs = (
407 "texlive-collection-fontsrecommended",
408 "texlive-collection-latex",
409 "texlive-xecjk",
410 "dejavu-sans-fonts",
411 "dejavu-serif-fonts",
412 "dejavu-sans-mono-fonts",
413 );
414
415 #
416 # Checks valid for RHEL/CentOS version 7.x.
417 #
418 my $old = 0;
419 my $rel;
420 $rel = $1 if ($system_release =~ /release\s+(\d+)/);
421
422 if (!($system_release =~ /Fedora/)) {
423 $map{"virtualenv"} = "python-virtualenv";
424
425 if ($rel && $rel < 8) {
426 $old = 1;
427 $pdf = 0;
428
429 printf("Note: texlive packages on RHEL/CENTOS <= 7 are incomplete. Can't support PDF output\n");
430 printf("If you want to build PDF, please read:\n");
431 printf("\thttps://www.systutorials.com/241660/how-to-install-tex-live-on-centos-7-linux/\n");
432 }
433 } else {
434 if ($rel && $rel < 26) {
435 $old = 1;
436 }
437 }
438 if (!$rel) {
439 printf("Couldn't identify release number\n");
440 $old = 1;
441 $pdf = 0;
442 }
443
444 if ($pdf) {
445 check_missing_file(["/usr/share/fonts/google-noto-cjk/NotoSansCJK-Regular.ttc"],
446 "google-noto-sans-cjk-ttc-fonts", 2);
447 }
448
449 check_rpm_missing(\@fedora26_opt_pkgs, 2) if ($pdf && !$old);
450 check_rpm_missing(\@fedora_tex_pkgs, 2) if ($pdf);
451 check_missing_tex(2) if ($pdf);
452 check_missing(\%map);
453
454 return if (!$need && !$optional);
455
456 if (!$old) {
457 # dnf, for Fedora 18+
458 printf("You should run:\n\n\tsudo dnf install -y $install\n");
459 } else {
460 # yum, for RHEL (and clones) or Fedora version < 18
461 printf("You should run:\n\n\tsudo yum install -y $install\n");
462 }
463}
464
465sub give_opensuse_hints()
466{
467 my %map = (
468 "python-sphinx" => "python3-sphinx",
469 "sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
470 "virtualenv" => "python3-virtualenv",
471 "dot" => "graphviz",
472 "convert" => "ImageMagick",
473 "Pod::Usage" => "perl-Pod-Usage",
474 "xelatex" => "texlive-xetex-bin",
475 );
476
477 # On Tumbleweed, this package is also named rsvg-convert
478 $map{"rsvg-convert"} = "rsvg-view" if (!($system_release =~ /Tumbleweed/));
479
480 my @suse_tex_pkgs = (
481 "texlive-babel-english",
482 "texlive-caption",
483 "texlive-colortbl",
484 "texlive-courier",
485 "texlive-dvips",
486 "texlive-helvetic",
487 "texlive-makeindex",
488 "texlive-metafont",
489 "texlive-metapost",
490 "texlive-palatino",
491 "texlive-preview",
492 "texlive-times",
493 "texlive-zapfchan",
494 "texlive-zapfding",
495 );
496
497 $map{"latexmk"} = "texlive-latexmk-bin";
498
499 # FIXME: add support for installing CJK fonts
500 #
501 # I tried hard, but was unable to find a way to install
502 # "Noto Sans CJK SC" on openSUSE
503
504 check_rpm_missing(\@suse_tex_pkgs, 2) if ($pdf);
505 check_missing_tex(2) if ($pdf);
506 check_missing(\%map);
507
508 return if (!$need && !$optional);
509 printf("You should run:\n\n\tsudo zypper install --no-recommends $install\n");
510}
511
512sub give_mageia_hints()
513{
514 my %map = (
515 "python-sphinx" => "python3-sphinx",
516 "sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
517 "virtualenv" => "python3-virtualenv",
518 "dot" => "graphviz",
519 "convert" => "ImageMagick",
520 "Pod::Usage" => "perl-Pod-Usage",
521 "xelatex" => "texlive",
522 "rsvg-convert" => "librsvg2",
523 );
524
525 my @tex_pkgs = (
526 "texlive-fontsextra",
527 );
528
529 $map{"latexmk"} = "texlive-collection-basic";
530
531 my $packager_cmd;
532 my $noto_sans;
533 if ($system_release =~ /OpenMandriva/) {
534 $packager_cmd = "dnf install";
535 $noto_sans = "noto-sans-cjk-fonts";
536 @tex_pkgs = ( "texlive-collection-fontsextra" );
537 } else {
538 $packager_cmd = "urpmi";
539 $noto_sans = "google-noto-sans-cjk-ttc-fonts";
540 }
541
542
543 if ($pdf) {
544 check_missing_file(["/usr/share/fonts/google-noto-cjk/NotoSansCJK-Regular.ttc",
545 "/usr/share/fonts/TTF/NotoSans-Regular.ttf"],
546 $noto_sans, 2);
547 }
548
549 check_rpm_missing(\@tex_pkgs, 2) if ($pdf);
550 check_missing(\%map);
551
552 return if (!$need && !$optional);
553 printf("You should run:\n\n\tsudo $packager_cmd $install\n");
554}
555
556sub give_arch_linux_hints()
557{
558 my %map = (
559 "sphinx_rtd_theme" => "python-sphinx_rtd_theme",
560 "virtualenv" => "python-virtualenv",
561 "dot" => "graphviz",
562 "convert" => "imagemagick",
563 "xelatex" => "texlive-bin",
564 "latexmk" => "texlive-core",
565 "rsvg-convert" => "extra/librsvg",
566 );
567
568 my @archlinux_tex_pkgs = (
569 "texlive-core",
570 "texlive-latexextra",
571 "ttf-dejavu",
572 );
573 check_pacman_missing(\@archlinux_tex_pkgs, 2) if ($pdf);
574
575 if ($pdf) {
576 check_missing_file(["/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc"],
577 "noto-fonts-cjk", 2);
578 }
579
580 check_missing(\%map);
581
582 return if (!$need && !$optional);
583 printf("You should run:\n\n\tsudo pacman -S $install\n");
584}
585
586sub give_gentoo_hints()
587{
588 my %map = (
589 "sphinx_rtd_theme" => "dev-python/sphinx_rtd_theme",
590 "virtualenv" => "dev-python/virtualenv",
591 "dot" => "media-gfx/graphviz",
592 "convert" => "media-gfx/imagemagick",
593 "xelatex" => "dev-texlive/texlive-xetex media-fonts/dejavu",
594 "rsvg-convert" => "gnome-base/librsvg",
595 );
596
597 check_missing_file(["/usr/share/fonts/dejavu/DejaVuSans.ttf"],
598 "media-fonts/dejavu", 2) if ($pdf);
599
600 if ($pdf) {
601 check_missing_file(["/usr/share/fonts/noto-cjk/NotoSansCJKsc-Regular.otf",
602 "/usr/share/fonts/noto-cjk/NotoSerifCJK-Regular.ttc"],
603 "media-fonts/noto-cjk", 2);
604 }
605
606 check_missing(\%map);
607
608 return if (!$need && !$optional);
609
610 printf("You should run:\n\n");
611
612 my $imagemagick = "media-gfx/imagemagick svg png";
613 my $cairo = "media-gfx/graphviz cairo pdf";
614 my $portage_imagemagick = "/etc/portage/package.use/imagemagick";
615 my $portage_cairo = "/etc/portage/package.use/graphviz";
616
617 if (qx(grep imagemagick $portage_imagemagick 2>/dev/null) eq "") {
618 printf("\tsudo su -c 'echo \"$imagemagick\" > $portage_imagemagick'\n")
619 }
620 if (qx(grep graphviz $portage_cairo 2>/dev/null) eq "") {
621 printf("\tsudo su -c 'echo \"$cairo\" > $portage_cairo'\n");
622 }
623
624 printf("\tsudo emerge --ask $install\n");
625
626}
627
628sub check_distros()
629{
630 # Distro-specific hints
631 if ($system_release =~ /Red Hat Enterprise Linux/) {
632 give_redhat_hints;
633 return;
634 }
635 if ($system_release =~ /CentOS/) {
636 give_redhat_hints;
637 return;
638 }
639 if ($system_release =~ /Scientific Linux/) {
640 give_redhat_hints;
641 return;
642 }
643 if ($system_release =~ /Oracle Linux Server/) {
644 give_redhat_hints;
645 return;
646 }
647 if ($system_release =~ /Fedora/) {
648 give_redhat_hints;
649 return;
650 }
651 if ($system_release =~ /Ubuntu/) {
652 give_debian_hints;
653 return;
654 }
655 if ($system_release =~ /Debian/) {
656 give_debian_hints;
657 return;
658 }
659 if ($system_release =~ /openSUSE/) {
660 give_opensuse_hints;
661 return;
662 }
663 if ($system_release =~ /Mageia/) {
664 give_mageia_hints;
665 return;
666 }
667 if ($system_release =~ /OpenMandriva/) {
668 give_mageia_hints;
669 return;
670 }
671 if ($system_release =~ /Arch Linux/) {
672 give_arch_linux_hints;
673 return;
674 }
675 if ($system_release =~ /Gentoo/) {
676 give_gentoo_hints;
677 return;
678 }
679
680 #
681 # Fall-back to generic hint code for other distros
682 # That's far from ideal, specially for LaTeX dependencies.
683 #
684 my %map = (
685 "sphinx-build" => "sphinx"
686 );
687 check_missing_tex(2) if ($pdf);
688 check_missing(\%map);
689 print "I don't know distro $system_release.\n";
690 print "So, I can't provide you a hint with the install procedure.\n";
691 print "There are likely missing dependencies.\n";
692}
693
694#
695# Common dependencies
696#
697
698sub deactivate_help()
699{
700 printf "\nIf you want to exit the virtualenv, you can use:\n";
701 printf "\tdeactivate\n";
702}
703
704sub check_needs()
705{
706 # Check if Sphinx is already accessible from current environment
707 check_sphinx();
708
709 if ($system_release) {
710 print "Detected OS: $system_release.\n";
711 } else {
712 print "Unknown OS\n";
713 }
714 printf "Sphinx version: %s\n\n", $cur_version if ($cur_version);
715
716 # Check python command line, trying first python3
717 $python_cmd = findprog("python3");
718 $python_cmd = check_program("python", 0) if (!$python_cmd);
719
720 # Check the type of virtual env, depending on Python version
721 if ($python_cmd) {
722 if ($virtualenv) {
723 my $tmp = qx($python_cmd --version 2>&1);
724 if ($tmp =~ m/(\d+\.)(\d+\.)/) {
725 if ($1 >= 3 && $2 >= 3) {
726 $need_venv = 1; # python 3.3 or upper
727 } else {
728 $need_virtualenv = 1;
729 }
730 if ($1 < 3) {
731 # Complain if it finds python2 (or worse)
732 printf "Warning: python$1 support is deprecated. Use it with caution!\n";
733 }
734 } else {
735 die "Warning: couldn't identify $python_cmd version!";
736 }
737 } else {
738 add_package("python-sphinx", 0);
739 }
740 }
741
742 # Set virtualenv command line, if python < 3.3
743 my $virtualenv_cmd;
744 if ($need_virtualenv) {
745 $virtualenv_cmd = findprog("virtualenv-3");
746 $virtualenv_cmd = findprog("virtualenv-3.5") if (!$virtualenv_cmd);
747 if (!$virtualenv_cmd) {
748 check_program("virtualenv", 0);
749 $virtualenv_cmd = "virtualenv";
750 }
751 }
752
753 # Check for needed programs/tools
754 check_perl_module("Pod::Usage", 0);
755 check_program("make", 0);
756 check_program("gcc", 0);
757 check_python_module("sphinx_rtd_theme", 1) if (!$virtualenv);
758 check_program("dot", 1);
759 check_program("convert", 1);
760
761 # Extra PDF files - should use 2 for is_optional
762 check_program("xelatex", 2) if ($pdf);
763 check_program("rsvg-convert", 2) if ($pdf);
764 check_program("latexmk", 2) if ($pdf);
765
766 if ($need_sphinx || $rec_sphinx_upgrade) {
767 check_python_module("ensurepip", 0) if ($need_venv);
768 }
769
770 # Do distro-specific checks and output distro-install commands
771 check_distros();
772
773 if (!$python_cmd) {
774 if ($need == 1) {
775 die "Can't build as $need mandatory dependency is missing";
776 } elsif ($need) {
777 die "Can't build as $need mandatory dependencies are missing";
778 }
779 }
780
781 # Check if sphinx-build is called sphinx-build-3
782 if ($need_symlink) {
783 printf "\tsudo ln -sf %s /usr/bin/sphinx-build\n\n",
784 which("sphinx-build-3");
785 }
786
787 # NOTE: if the system has a too old Sphinx version installed,
788 # it will recommend installing a newer version using virtualenv
789
790 if ($need_sphinx || $rec_sphinx_upgrade) {
791 my $min_activate = "$ENV{'PWD'}/${virtenv_prefix}${min_version}/bin/activate";
792 my @activates = glob "$ENV{'PWD'}/${virtenv_prefix}*/bin/activate";
793
794 if ($cur_version lt $rec_version) {
795 print "Warning: It is recommended at least Sphinx version $rec_version.\n";
796 print " If you want pdf, you need at least $min_pdf_version.\n";
797 }
798 if ($cur_version lt $min_pdf_version) {
799 print "Note: It is recommended at least Sphinx version $min_pdf_version if you need PDF support.\n";
800 }
801 @activates = sort {$b cmp $a} @activates;
802 my ($activate, $ver);
803 foreach my $f (@activates) {
804 next if ($f lt $min_activate);
805
806 my $sphinx_cmd = $f;
807 $sphinx_cmd =~ s/activate/sphinx-build/;
808 next if (! -f $sphinx_cmd);
809
810 $ver = get_sphinx_version($sphinx_cmd);
811 if ($need_sphinx && ($ver ge $min_version)) {
812 $activate = $f;
813 last;
814 } elsif ($ver gt $cur_version) {
815 $activate = $f;
816 last;
817 }
818 }
819 if ($activate ne "") {
820 if ($need_sphinx) {
821 printf "\nNeed to activate Sphinx (version $ver) on virtualenv with:\n";
822 printf "\t. $activate\n";
823 deactivate_help();
824 exit (1);
825 } else {
826 printf "\nYou may also use a newer Sphinx (version $ver) with:\n";
827 printf "\tdeactivate && . $activate\n";
828 }
829 } else {
830 my $rec_activate = "$virtenv_dir/bin/activate";
831
832 print "To upgrade Sphinx, use:\n\n" if ($rec_sphinx_upgrade);
833
834 $python_cmd = find_python_no_venv();
835
836 if ($need_venv) {
837 printf "\t$python_cmd -m venv $virtenv_dir\n";
838 } else {
839 printf "\t$virtualenv_cmd $virtenv_dir\n";
840 }
841 printf "\t. $rec_activate\n";
842 printf "\tpip install -r $requirement_file\n";
843 deactivate_help();
844
845 $need++ if (!$rec_sphinx_upgrade);
846 }
847 }
848 printf "\n";
849
850 print "All optional dependencies are met.\n" if (!$optional);
851
852 if ($need == 1) {
853 die "Can't build as $need mandatory dependency is missing";
854 } elsif ($need) {
855 die "Can't build as $need mandatory dependencies are missing";
856 }
857
858 print "Needed package dependencies are met.\n";
859}
860
861#
862# Main
863#
864
865while (@ARGV) {
866 my $arg = shift(@ARGV);
867
868 if ($arg eq "--no-virtualenv") {
869 $virtualenv = 0;
870 } elsif ($arg eq "--no-pdf"){
871 $pdf = 0;
872 } elsif ($arg eq "--version-check"){
873 $version_check = 1;
874 } else {
875 print "Usage:\n\t$0 <--no-virtualenv> <--no-pdf> <--version-check>\n\n";
876 print "Where:\n";
877 print "\t--no-virtualenv\t- Recommend installing Sphinx instead of using a virtualenv\n";
878 print "\t--version-check\t- if version is compatible, don't check for missing dependencies\n";
879 print "\t--no-pdf\t- don't check for dependencies required to build PDF docs\n\n";
880 exit -1;
881 }
882}
883
884#
885# Determine the system type. There's no standard unique way that would
886# work with all distros with a minimal package install. So, several
887# methods are used here.
888#
889# By default, it will use lsb_release function. If not available, it will
890# fail back to reading the known different places where the distro name
891# is stored
892#
893
894$system_release = qx(lsb_release -d) if which("lsb_release");
895$system_release =~ s/Description:\s*// if ($system_release);
896$system_release = catcheck("/etc/system-release") if !$system_release;
897$system_release = catcheck("/etc/redhat-release") if !$system_release;
898$system_release = catcheck("/etc/lsb-release") if !$system_release;
899$system_release = catcheck("/etc/gentoo-release") if !$system_release;
900
901# This seems more common than LSB these days
902if (!$system_release) {
903 my %os_var;
904 if (open IN, "cat /etc/os-release|") {
905 while (<IN>) {
906 if (m/^([\w\d\_]+)=\"?([^\"]*)\"?\n/) {
907 $os_var{$1}=$2;
908 }
909 }
910 $system_release = $os_var{"NAME"};
911 if (defined($os_var{"VERSION_ID"})) {
912 $system_release .= " " . $os_var{"VERSION_ID"} if (defined($os_var{"VERSION_ID"}));
913 } else {
914 $system_release .= " " . $os_var{"VERSION"};
915 }
916 }
917}
918$system_release = catcheck("/etc/issue") if !$system_release;
919$system_release =~ s/\s+$//;
920
921check_needs;
1#!/usr/bin/perl
2# SPDX-License-Identifier: GPL-2.0-or-later
3use strict;
4
5# Copyright (c) 2017-2019 Mauro Carvalho Chehab <mchehab@kernel.org>
6#
7
8my $prefix = "./";
9$prefix = "$ENV{'srctree'}/" if ($ENV{'srctree'});
10
11my $conf = $prefix . "Documentation/conf.py";
12my $requirement_file = $prefix . "Documentation/sphinx/requirements.txt";
13my $virtenv_prefix = "sphinx_";
14
15#
16# Static vars
17#
18
19my %missing;
20my $system_release;
21my $need = 0;
22my $optional = 0;
23my $need_symlink = 0;
24my $need_sphinx = 0;
25my $rec_sphinx_upgrade = 0;
26my $install = "";
27my $virtenv_dir = "";
28my $min_version;
29
30#
31# Command line arguments
32#
33
34my $pdf = 1;
35my $virtualenv = 1;
36my $version_check = 0;
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 # At least on some LTS distros like CentOS 7, texlive doesn't
87 # provide all packages we need. When such distros are
88 # detected, we have to disable PDF output.
89 #
90 # So, we need to ignore the packages that distros would
91 # need for LaTeX to work
92 if ($is_optional == 2 && !$pdf) {
93 $optional--;
94 next;
95 }
96
97 if ($is_optional) {
98 print "Warning: better to also install \"$prog\".\n";
99 } else {
100 print "ERROR: please install \"$prog\", otherwise, build won't work.\n";
101 }
102 if (defined($map{$prog})) {
103 $install .= " " . $map{$prog};
104 } else {
105 $install .= " " . $prog;
106 }
107 }
108
109 $install =~ s/^\s//;
110}
111
112sub add_package($$)
113{
114 my $package = shift;
115 my $is_optional = shift;
116
117 $missing{$package} = $is_optional;
118 if ($is_optional) {
119 $optional++;
120 } else {
121 $need++;
122 }
123}
124
125sub check_missing_file($$$)
126{
127 my $file = shift;
128 my $package = shift;
129 my $is_optional = shift;
130
131 return if(-e $file);
132
133 add_package($package, $is_optional);
134}
135
136sub findprog($)
137{
138 foreach(split(/:/, $ENV{PATH})) {
139 return "$_/$_[0]" if(-x "$_/$_[0]");
140 }
141}
142
143sub check_program($$)
144{
145 my $prog = shift;
146 my $is_optional = shift;
147
148 return if findprog($prog);
149
150 add_package($prog, $is_optional);
151}
152
153sub check_perl_module($$)
154{
155 my $prog = shift;
156 my $is_optional = shift;
157
158 my $err = system("perl -M$prog -e 1 2>/dev/null /dev/null");
159 return if ($err == 0);
160
161 add_package($prog, $is_optional);
162}
163
164sub check_python_module($$)
165{
166 my $prog = shift;
167 my $is_optional = shift;
168
169 my $err = system("python3 -c 'import $prog' 2>/dev/null /dev/null");
170 return if ($err == 0);
171 my $err = system("python -c 'import $prog' 2>/dev/null /dev/null");
172 return if ($err == 0);
173
174 add_package($prog, $is_optional);
175}
176
177sub check_rpm_missing($$)
178{
179 my @pkgs = @{$_[0]};
180 my $is_optional = $_[1];
181
182 foreach my $prog(@pkgs) {
183 my $err = system("rpm -q '$prog' 2>/dev/null >/dev/null");
184 add_package($prog, $is_optional) if ($err);
185 }
186}
187
188sub check_pacman_missing($$)
189{
190 my @pkgs = @{$_[0]};
191 my $is_optional = $_[1];
192
193 foreach my $prog(@pkgs) {
194 my $err = system("pacman -Q '$prog' 2>/dev/null >/dev/null");
195 add_package($prog, $is_optional) if ($err);
196 }
197}
198
199sub check_missing_tex($)
200{
201 my $is_optional = shift;
202 my $kpsewhich = findprog("kpsewhich");
203
204 foreach my $prog(keys %texlive) {
205 my $package = $texlive{$prog};
206 if (!$kpsewhich) {
207 add_package($package, $is_optional);
208 next;
209 }
210 my $file = qx($kpsewhich $prog);
211 add_package($package, $is_optional) if ($file =~ /^\s*$/);
212 }
213}
214
215sub get_sphinx_fname()
216{
217 my $fname = "sphinx-build";
218 return $fname if findprog($fname);
219
220 $fname = "sphinx-build-3";
221 if (findprog($fname)) {
222 $need_symlink = 1;
223 return $fname;
224 }
225
226 if ($virtualenv) {
227 my $prog = findprog("virtualenv-3");
228 $prog = findprog("virtualenv-3.5") if (!$prog);
229
230 check_program("virtualenv", 0) if (!$prog);
231 $need_sphinx = 1;
232 } else {
233 add_package("python-sphinx", 0);
234 }
235
236 return "";
237}
238
239sub check_sphinx()
240{
241 my $rec_version;
242 my $cur_version;
243
244 open IN, $conf or die "Can't open $conf";
245 while (<IN>) {
246 if (m/^\s*needs_sphinx\s*=\s*[\'\"]([\d\.]+)[\'\"]/) {
247 $min_version=$1;
248 last;
249 }
250 }
251 close IN;
252
253 die "Can't get needs_sphinx version from $conf" if (!$min_version);
254
255 open IN, $requirement_file or die "Can't open $requirement_file";
256 while (<IN>) {
257 if (m/^\s*Sphinx\s*==\s*([\d\.]+)$/) {
258 $rec_version=$1;
259 last;
260 }
261 }
262 close IN;
263
264 die "Can't get recommended sphinx version from $requirement_file" if (!$min_version);
265
266 $virtenv_dir = $virtenv_prefix . $rec_version;
267
268 my $sphinx = get_sphinx_fname();
269 return if ($sphinx eq "");
270
271 open IN, "$sphinx --version 2>&1 |" or die "$sphinx returned an error";
272 while (<IN>) {
273 if (m/^\s*sphinx-build\s+([\d\.]+)$/) {
274 $cur_version=$1;
275 last;
276 }
277 # Sphinx 1.2.x uses a different format
278 if (m/^\s*Sphinx.*\s+([\d\.]+)$/) {
279 $cur_version=$1;
280 last;
281 }
282 }
283 close IN;
284
285 die "$sphinx didn't return its version" if (!$cur_version);
286
287 if ($cur_version lt $min_version) {
288 printf "ERROR: Sphinx version is %s. It should be >= %s (recommended >= %s)\n",
289 $cur_version, $min_version, $rec_version;;
290 $need_sphinx = 1;
291 return;
292 }
293
294 if ($cur_version lt $rec_version) {
295 printf "Sphinx version %s\n", $cur_version;
296 print "Warning: It is recommended at least Sphinx version $rec_version.\n";
297 $rec_sphinx_upgrade = 1;
298 return;
299 }
300
301 # On version check mode, just assume Sphinx has all mandatory deps
302 exit (0) if ($version_check);
303}
304
305#
306# Ancillary subroutines
307#
308
309sub catcheck($)
310{
311 my $res = "";
312 $res = qx(cat $_[0]) if (-r $_[0]);
313 return $res;
314}
315
316sub which($)
317{
318 my $file = shift;
319 my @path = split ":", $ENV{PATH};
320
321 foreach my $dir(@path) {
322 my $name = $dir.'/'.$file;
323 return $name if (-x $name );
324 }
325 return undef;
326}
327
328#
329# Subroutines that check distro-specific hints
330#
331
332sub give_debian_hints()
333{
334 my %map = (
335 "python-sphinx" => "python3-sphinx",
336 "sphinx_rtd_theme" => "python3-sphinx-rtd-theme",
337 "virtualenv" => "virtualenv",
338 "dot" => "graphviz",
339 "convert" => "imagemagick",
340 "Pod::Usage" => "perl-modules",
341 "xelatex" => "texlive-xetex",
342 "rsvg-convert" => "librsvg2-bin",
343 );
344
345 if ($pdf) {
346 check_missing_file("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf",
347 "fonts-dejavu", 2);
348
349 check_missing_file("/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc",
350 "fonts-noto-cjk", 2);
351 }
352
353 check_program("dvipng", 2) if ($pdf);
354 check_missing(\%map);
355
356 return if (!$need && !$optional);
357 printf("You should run:\n\n\tsudo apt-get install $install\n");
358}
359
360sub give_redhat_hints()
361{
362 my %map = (
363 "python-sphinx" => "python3-sphinx",
364 "sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
365 "virtualenv" => "python3-virtualenv",
366 "dot" => "graphviz",
367 "convert" => "ImageMagick",
368 "Pod::Usage" => "perl-Pod-Usage",
369 "xelatex" => "texlive-xetex-bin",
370 "rsvg-convert" => "librsvg2-tools",
371 );
372
373 my @fedora26_opt_pkgs = (
374 "graphviz-gd", # Fedora 26: needed for PDF support
375 );
376
377 my @fedora_tex_pkgs = (
378 "texlive-collection-fontsrecommended",
379 "texlive-collection-latex",
380 "texlive-xecjk",
381 "dejavu-sans-fonts",
382 "dejavu-serif-fonts",
383 "dejavu-sans-mono-fonts",
384 );
385
386 #
387 # Checks valid for RHEL/CentOS version 7.x.
388 #
389 my $old = 0;
390 my $rel;
391 $rel = $1 if ($system_release =~ /release\s+(\d+)/);
392
393 if (!($system_release =~ /Fedora/)) {
394 $map{"virtualenv"} = "python-virtualenv";
395
396 if ($rel && $rel < 8) {
397 $old = 1;
398 $pdf = 0;
399
400 printf("Note: texlive packages on RHEL/CENTOS <= 7 are incomplete. Can't support PDF output\n");
401 printf("If you want to build PDF, please read:\n");
402 printf("\thttps://www.systutorials.com/241660/how-to-install-tex-live-on-centos-7-linux/\n");
403 }
404 } else {
405 if ($rel && $rel < 26) {
406 $old = 1;
407 }
408 }
409 if (!$rel) {
410 printf("Couldn't identify release number\n");
411 $old = 1;
412 $pdf = 0;
413 }
414
415 if ($pdf) {
416 check_missing_file("/usr/share/fonts/google-noto-cjk/NotoSansCJK-Regular.ttc",
417 "google-noto-sans-cjk-ttc-fonts", 2);
418 }
419
420 check_rpm_missing(\@fedora26_opt_pkgs, 2) if ($pdf && !$old);
421 check_rpm_missing(\@fedora_tex_pkgs, 2) if ($pdf);
422 check_missing_tex(2) if ($pdf);
423 check_missing(\%map);
424
425 return if (!$need && !$optional);
426
427 if (!$old) {
428 # dnf, for Fedora 18+
429 printf("You should run:\n\n\tsudo dnf install -y $install\n");
430 } else {
431 # yum, for RHEL (and clones) or Fedora version < 18
432 printf("You should run:\n\n\tsudo yum install -y $install\n");
433 }
434}
435
436sub give_opensuse_hints()
437{
438 my %map = (
439 "python-sphinx" => "python3-sphinx",
440 "sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
441 "virtualenv" => "python3-virtualenv",
442 "dot" => "graphviz",
443 "convert" => "ImageMagick",
444 "Pod::Usage" => "perl-Pod-Usage",
445 "xelatex" => "texlive-xetex-bin",
446 "rsvg-convert" => "rsvg-view",
447 );
448
449 my @suse_tex_pkgs = (
450 "texlive-babel-english",
451 "texlive-caption",
452 "texlive-colortbl",
453 "texlive-courier",
454 "texlive-dvips",
455 "texlive-helvetic",
456 "texlive-makeindex",
457 "texlive-metafont",
458 "texlive-metapost",
459 "texlive-palatino",
460 "texlive-preview",
461 "texlive-times",
462 "texlive-zapfchan",
463 "texlive-zapfding",
464 );
465
466 $map{"latexmk"} = "texlive-latexmk-bin";
467
468 # FIXME: add support for installing CJK fonts
469 #
470 # I tried hard, but was unable to find a way to install
471 # "Noto Sans CJK SC" on openSUSE
472
473 check_rpm_missing(\@suse_tex_pkgs, 2) if ($pdf);
474 check_missing_tex(2) if ($pdf);
475 check_missing(\%map);
476
477 return if (!$need && !$optional);
478 printf("You should run:\n\n\tsudo zypper install --no-recommends $install\n");
479}
480
481sub give_mageia_hints()
482{
483 my %map = (
484 "python-sphinx" => "python3-sphinx",
485 "sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
486 "virtualenv" => "python3-virtualenv",
487 "dot" => "graphviz",
488 "convert" => "ImageMagick",
489 "Pod::Usage" => "perl-Pod-Usage",
490 "xelatex" => "texlive",
491 "rsvg-convert" => "librsvg2-tools",
492 );
493
494 my @tex_pkgs = (
495 "texlive-fontsextra",
496 );
497
498 $map{"latexmk"} = "texlive-collection-basic";
499
500 if ($pdf) {
501 check_missing_file("/usr/share/fonts/google-noto-cjk/NotoSansCJK-Regular.ttc",
502 "google-noto-sans-cjk-ttc-fonts", 2);
503 }
504
505 check_rpm_missing(\@tex_pkgs, 2) if ($pdf);
506 check_missing(\%map);
507
508 return if (!$need && !$optional);
509 printf("You should run:\n\n\tsudo urpmi $install\n");
510}
511
512sub give_arch_linux_hints()
513{
514 my %map = (
515 "sphinx_rtd_theme" => "python-sphinx_rtd_theme",
516 "virtualenv" => "python-virtualenv",
517 "dot" => "graphviz",
518 "convert" => "imagemagick",
519 "xelatex" => "texlive-bin",
520 "rsvg-convert" => "extra/librsvg",
521 );
522
523 my @archlinux_tex_pkgs = (
524 "texlive-core",
525 "texlive-latexextra",
526 "ttf-dejavu",
527 );
528 check_pacman_missing(\@archlinux_tex_pkgs, 2) if ($pdf);
529
530 if ($pdf) {
531 check_missing_file("/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc",
532 "noto-fonts-cjk", 2);
533 }
534
535 check_missing(\%map);
536
537 return if (!$need && !$optional);
538 printf("You should run:\n\n\tsudo pacman -S $install\n");
539}
540
541sub give_gentoo_hints()
542{
543 my %map = (
544 "sphinx_rtd_theme" => "dev-python/sphinx_rtd_theme",
545 "virtualenv" => "dev-python/virtualenv",
546 "dot" => "media-gfx/graphviz",
547 "convert" => "media-gfx/imagemagick",
548 "xelatex" => "dev-texlive/texlive-xetex media-fonts/dejavu",
549 "rsvg-convert" => "gnome-base/librsvg",
550 );
551
552 check_missing_file("/usr/share/fonts/dejavu/DejaVuSans.ttf",
553 "media-fonts/dejavu", 2) if ($pdf);
554
555 if ($pdf) {
556 check_missing_file("/usr/share/fonts/noto-cjk/NotoSansCJKsc-Regular.otf",
557 "media-fonts/noto-cjk", 2);
558 }
559
560 check_missing(\%map);
561
562 return if (!$need && !$optional);
563
564 printf("You should run:\n\n");
565
566 my $imagemagick = "media-gfx/imagemagick svg png";
567 my $cairo = "media-gfx/graphviz cairo pdf";
568 my $portage_imagemagick = "/etc/portage/package.use/imagemagick";
569 my $portage_cairo = "/etc/portage/package.use/graphviz";
570
571 if (qx(cat $portage_imagemagick) ne "$imagemagick\n") {
572 printf("\tsudo su -c 'echo \"$imagemagick\" > $portage_imagemagick'\n")
573 }
574 if (qx(cat $portage_cairo) ne "$cairo\n") {
575 printf("\tsudo su -c 'echo \"$cairo\" > $portage_cairo'\n");
576 }
577
578 printf("\tsudo emerge --ask $install\n");
579
580}
581
582sub check_distros()
583{
584 # Distro-specific hints
585 if ($system_release =~ /Red Hat Enterprise Linux/) {
586 give_redhat_hints;
587 return;
588 }
589 if ($system_release =~ /CentOS/) {
590 give_redhat_hints;
591 return;
592 }
593 if ($system_release =~ /Scientific Linux/) {
594 give_redhat_hints;
595 return;
596 }
597 if ($system_release =~ /Oracle Linux Server/) {
598 give_redhat_hints;
599 return;
600 }
601 if ($system_release =~ /Fedora/) {
602 give_redhat_hints;
603 return;
604 }
605 if ($system_release =~ /Ubuntu/) {
606 give_debian_hints;
607 return;
608 }
609 if ($system_release =~ /Debian/) {
610 give_debian_hints;
611 return;
612 }
613 if ($system_release =~ /openSUSE/) {
614 give_opensuse_hints;
615 return;
616 }
617 if ($system_release =~ /Mageia/) {
618 give_mageia_hints;
619 return;
620 }
621 if ($system_release =~ /Arch Linux/) {
622 give_arch_linux_hints;
623 return;
624 }
625 if ($system_release =~ /Gentoo/) {
626 give_gentoo_hints;
627 return;
628 }
629
630 #
631 # Fall-back to generic hint code for other distros
632 # That's far from ideal, specially for LaTeX dependencies.
633 #
634 my %map = (
635 "sphinx-build" => "sphinx"
636 );
637 check_missing_tex(2) if ($pdf);
638 check_missing(\%map);
639 print "I don't know distro $system_release.\n";
640 print "So, I can't provide you a hint with the install procedure.\n";
641 print "There are likely missing dependencies.\n";
642}
643
644#
645# Common dependencies
646#
647
648sub check_needs()
649{
650 # Check for needed programs/tools
651 check_sphinx();
652
653 if ($system_release) {
654 print "Detected OS: $system_release.\n\n";
655 } else {
656 print "Unknown OS\n\n";
657 }
658
659 print "To upgrade Sphinx, use:\n\n" if ($rec_sphinx_upgrade);
660
661 # Check for needed programs/tools
662 check_perl_module("Pod::Usage", 0);
663 check_program("make", 0);
664 check_program("gcc", 0);
665 check_python_module("sphinx_rtd_theme", 1) if (!$virtualenv);
666 check_program("dot", 1);
667 check_program("convert", 1);
668
669 # Extra PDF files - should use 2 for is_optional
670 check_program("xelatex", 2) if ($pdf);
671 check_program("rsvg-convert", 2) if ($pdf);
672 check_program("latexmk", 2) if ($pdf);
673
674 check_distros();
675
676 if ($need_symlink) {
677 printf "\tsudo ln -sf %s /usr/bin/sphinx-build\n\n",
678 which("sphinx-build-3");
679 }
680 if ($need_sphinx || $rec_sphinx_upgrade) {
681 my $min_activate = "$ENV{'PWD'}/${virtenv_prefix}${min_version}/bin/activate";
682 my @activates = glob "$ENV{'PWD'}/${virtenv_prefix}*/bin/activate";
683
684 @activates = sort {$b cmp $a} @activates;
685
686 if ($need_sphinx && scalar @activates > 0 && $activates[0] ge $min_activate) {
687 printf "\nNeed to activate a compatible Sphinx version on virtualenv with:\n";
688 printf "\t. $activates[0]\n";
689 exit (1);
690 } else {
691 my $rec_activate = "$virtenv_dir/bin/activate";
692 my $virtualenv = findprog("virtualenv-3");
693 $virtualenv = findprog("virtualenv-3.5") if (!$virtualenv);
694 $virtualenv = findprog("virtualenv") if (!$virtualenv);
695 $virtualenv = "virtualenv" if (!$virtualenv);
696
697 printf "\t$virtualenv $virtenv_dir\n";
698 printf "\t. $rec_activate\n";
699 printf "\tpip install -r $requirement_file\n";
700
701 $need++ if (!$rec_sphinx_upgrade);
702 }
703 }
704 printf "\n";
705
706 print "All optional dependencies are met.\n" if (!$optional);
707
708 if ($need == 1) {
709 die "Can't build as $need mandatory dependency is missing";
710 } elsif ($need) {
711 die "Can't build as $need mandatory dependencies are missing";
712 }
713
714 print "Needed package dependencies are met.\n";
715}
716
717#
718# Main
719#
720
721while (@ARGV) {
722 my $arg = shift(@ARGV);
723
724 if ($arg eq "--no-virtualenv") {
725 $virtualenv = 0;
726 } elsif ($arg eq "--no-pdf"){
727 $pdf = 0;
728 } elsif ($arg eq "--version-check"){
729 $version_check = 1;
730 } else {
731 print "Usage:\n\t$0 <--no-virtualenv> <--no-pdf> <--version-check>\n\n";
732 print "Where:\n";
733 print "\t--no-virtualenv\t- Recommend installing Sphinx instead of using a virtualenv\n";
734 print "\t--version-check\t- if version is compatible, don't check for missing dependencies\n";
735 print "\t--no-pdf\t- don't check for dependencies required to build PDF docs\n\n";
736 exit -1;
737 }
738}
739
740#
741# Determine the system type. There's no standard unique way that would
742# work with all distros with a minimal package install. So, several
743# methods are used here.
744#
745# By default, it will use lsb_release function. If not available, it will
746# fail back to reading the known different places where the distro name
747# is stored
748#
749
750$system_release = qx(lsb_release -d) if which("lsb_release");
751$system_release =~ s/Description:\s*// if ($system_release);
752$system_release = catcheck("/etc/system-release") if !$system_release;
753$system_release = catcheck("/etc/redhat-release") if !$system_release;
754$system_release = catcheck("/etc/lsb-release") if !$system_release;
755$system_release = catcheck("/etc/gentoo-release") if !$system_release;
756$system_release = catcheck("/etc/issue") if !$system_release;
757$system_release =~ s/\s+$//;
758
759check_needs;