[linux-block.git] / scripts / sphinx-pre-install

#!/usr/bin/perl
use strict;

# Copyright (c) 2017 Mauro Carvalho Chehab <mchehab@kernel.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

my $virtenv_dir = "sphinx_1.4";
my $requirement_file = "Documentation/sphinx/requirements.txt";

#
# Static vars
#

my %missing;
my $system_release;
my $need = 0;
my $optional = 0;
my $need_symlink = 0;
my $need_sphinx = 0;
my $install = "";

#
# Command line arguments
#

my $pdf = 1;
my $virtualenv = 1;

#
# List of required texlive packages on Fedora and OpenSuse
#

my %texlive = (
	'adjustbox.sty'      => 'texlive-adjustbox',
	'amsfonts.sty'       => 'texlive-amsfonts',
	'amsmath.sty'        => 'texlive-amsmath',
	'amssymb.sty'        => 'texlive-amsfonts',
	'amsthm.sty'         => 'texlive-amscls',
	'anyfontsize.sty'    => 'texlive-anyfontsize',
	'atbegshi.sty'       => 'texlive-oberdiek',
	'bm.sty'             => 'texlive-tools',
	'capt-of.sty'        => 'texlive-capt-of',
	'cmap.sty'           => 'texlive-cmap',
	'ecrm1000.tfm'       => 'texlive-ec',
	'eqparbox.sty'       => 'texlive-eqparbox',
	'eu1enc.def'         => 'texlive-euenc',
	'fancybox.sty'       => 'texlive-fancybox',
	'fancyvrb.sty'       => 'texlive-fancyvrb',
	'float.sty'          => 'texlive-float',
	'fncychap.sty'       => 'texlive-fncychap',
	'footnote.sty'       => 'texlive-mdwtools',
	'framed.sty'         => 'texlive-framed',
	'luatex85.sty'       => 'texlive-luatex85',
	'multirow.sty'       => 'texlive-multirow',
	'needspace.sty'      => 'texlive-needspace',
	'palatino.sty'       => 'texlive-psnfss',
	'parskip.sty'        => 'texlive-parskip',
	'polyglossia.sty'    => 'texlive-polyglossia',
	'tabulary.sty'       => 'texlive-tabulary',
	'threeparttable.sty' => 'texlive-threeparttable',
	'titlesec.sty'       => 'texlive-titlesec',
	'ucs.sty'            => 'texlive-ucs',
	'upquote.sty'        => 'texlive-upquote',
	'wrapfig.sty'        => 'texlive-wrapfig',
);

#
# Subroutines that checks if a feature exists
#

sub check_missing(%)
{
	my %map = %{$_[0]};

	foreach my $prog (sort keys %missing) {
		my $is_optional = $missing{$prog};

		if ($is_optional) {
			print "Warning: better to also install \"$prog\".\n";
		} else {
			print "ERROR: please install \"$prog\", otherwise, build won't work.\n";
		}
		if (defined($map{$prog})) {
			$install .= " " . $map{$prog};
		} else {
			$install .= " " . $prog;
		}
	}

	$install =~ s/^\s//;
}

sub add_package($$)
{
	my $package = shift;
	my $is_optional = shift;

	$missing{$package} = $is_optional;
	if ($is_optional) {
		$optional++;
	} else {
		$need++;
	}
}

sub check_missing_file($$$)
{
	my $file = shift;
	my $package = shift;
	my $is_optional = shift;

	return if(-e $file);

	add_package($package, $is_optional);
}

sub findprog($)
{
	foreach(split(/:/, $ENV{PATH})) {
		return "$_/$_[0]" if(-x "$_/$_[0]");
	}
}

sub check_program($$)
{
	my $prog = shift;
	my $is_optional = shift;

	return if findprog($prog);

	add_package($prog, $is_optional);
}

sub check_perl_module($$)
{
	my $prog = shift;
	my $is_optional = shift;

	my $err = system("perl -M$prog -e 1 2>/dev/null /dev/null");
	return if ($err == 0);

	add_package($prog, $is_optional);
}

sub check_python_module($$)
{
	my $prog = shift;
	my $is_optional = shift;

	my $err = system("python3 -c 'import $prog' 2>/dev/null /dev/null");
	return if ($err == 0);
	my $err = system("python -c 'import $prog' 2>/dev/null /dev/null");
	return if ($err == 0);

	add_package($prog, $is_optional);
}

sub check_rpm_missing($$)
{
	my @pkgs = @{$_[0]};
	my $is_optional = $_[1];

	foreach my $prog(@pkgs) {
		my $err = system("rpm -q '$prog' 2>/dev/null >/dev/null");
		add_package($prog, $is_optional) if ($err);
	}
}

sub check_pacman_missing($$)
{
	my @pkgs = @{$_[0]};
	my $is_optional = $_[1];

	foreach my $prog(@pkgs) {
		my $err = system("pacman -Q '$prog' 2>/dev/null >/dev/null");
		add_package($prog, $is_optional) if ($err);
	}
}

sub check_missing_tex($)
{
	my $is_optional = shift;
	my $kpsewhich = findprog("kpsewhich");

	foreach my $prog(keys %texlive) {
		my $package = $texlive{$prog};
		if (!$kpsewhich) {
			add_package($package, $is_optional);
			next;
		}
		my $file = qx($kpsewhich $prog);
		add_package($package, $is_optional) if ($file =~ /^\s*$/);
	}
}

sub check_sphinx()
{
	return if findprog("sphinx-build");

	if (findprog("sphinx-build-3")) {
		$need_symlink = 1;
		return;
	}

	if ($virtualenv) {
		check_program("virtualenv", 0) if (!findprog("virtualenv-3"));
		check_program("pip", 0) if (!findprog("pip3"));
		$need_sphinx = 1;
	} else {
		add_package("python-sphinx", 0);
	}
}

#
# Ancillary subroutines
#

sub catcheck($)
{
  my $res = "";
  $res = qx(cat $_[0]) if (-r $_[0]);
  return $res;
}

sub which($)
{
	my $file = shift;
	my @path = split ":", $ENV{PATH};

	foreach my $dir(@path) {
		my $name = $dir.'/'.$file;
		return $name if (-x $name );
	}
	return undef;
}

#
# Subroutines that check distro-specific hints
#

sub give_debian_hints()
{
	my %map = (
		"python-sphinx"		=> "python3-sphinx",
		"sphinx_rtd_theme"	=> "python3-sphinx-rtd-theme",
		"virtualenv"		=> "virtualenv",
		"pip"			=> "python3-pip",
		"dot"			=> "graphviz",
		"convert"		=> "imagemagick",
		"Pod::Usage"		=> "perl-modules",
		"xelatex"		=> "texlive-xetex",
	);

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

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

	return if (!$need && !$optional);
	printf("You should run:\n\n\tsudo apt-get install $install\n");
}

sub give_redhat_hints()
{
	my %map = (
		"python-sphinx"		=> "python3-sphinx",
		"sphinx_rtd_theme"	=> "python3-sphinx_rtd_theme",
		"virtualenv"		=> "python3-virtualenv",
		"pip"			=> "python3-pip",
		"dot"			=> "graphviz",
		"convert"		=> "ImageMagick",
		"Pod::Usage"		=> "perl-Pod-Usage",
		"xelatex"		=> "texlive-xetex-bin",
	);

	my @fedora_tex_pkgs = (
		"texlive-collection-fontsrecommended",
		"texlive-collection-latex",
		"dejavu-sans-fonts",
		"dejavu-serif-fonts",
		"dejavu-sans-mono-fonts",
	);

	check_rpm_missing(\@fedora_tex_pkgs, 1) if ($pdf);
	check_missing_tex(1) if ($pdf);
	check_missing(\%map);

	return if (!$need && !$optional);
	printf("You should run:\n\n\tsudo dnf install -y $install\n");
}

sub give_opensuse_hints()
{
	my %map = (
		"python-sphinx"		=> "python3-sphinx",
		"sphinx_rtd_theme"	=> "python3-sphinx_rtd_theme",
		"virtualenv"		=> "python3-virtualenv",
		"pip"			=> "python3-pip",
		"dot"			=> "graphviz",
		"convert"		=> "ImageMagick",
		"Pod::Usage"		=> "perl-Pod-Usage",
		"xelatex"		=> "texlive-xetex-bin",
	);

	my @suse_tex_pkgs = (
		"texlive-babel-english",
		"texlive-caption",
		"texlive-colortbl",
		"texlive-courier",
		"texlive-dvips",
		"texlive-helvetic",
		"texlive-makeindex",
		"texlive-metafont",
		"texlive-metapost",
		"texlive-palatino",
		"texlive-preview",
		"texlive-times",
		"texlive-zapfchan",
		"texlive-zapfding",
	);

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

	return if (!$need && !$optional);
	printf("You should run:\n\n\tsudo zypper install --no-recommends $install\n");
}

sub give_arch_linux_hints()
{
	my %map = (
		"sphinx_rtd_theme"	=> "python-sphinx_rtd_theme",
		"virtualenv"		=> "python-virtualenv",
		"pip"			=> "python-pip",
		"dot"			=> "graphviz",
		"convert"		=> "imagemagick",
		"xelatex"		=> "texlive-bin",
	);

	my @archlinux_tex_pkgs = (
		"texlive-core",
		"texlive-latexextra",
		"ttf-dejavu",
	);
	check_pacman_missing(\@archlinux_tex_pkgs, 1) if ($pdf);
	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",
		"pip"			=> "dev-python/pip",
		"dot"			=> "media-gfx/graphviz",
		"convert"		=> "media-gfx/imagemagick",
		"xelatex"		=> "dev-texlive/texlive-xetex media-fonts/dejavu",
	);

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

	check_missing(\%map);

	return if (!$need && !$optional);
	printf("You should run:\n\n\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 =~ /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 =~ /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(1) 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 check_needs()
{
	if ($system_release) {
		print "Checking if the needed tools for $system_release are available\n";
	} else {
		print "Checking if the needed tools are present\n";
	}

	# Check for needed programs/tools
	check_sphinx();
	check_perl_module("Pod::Usage", 0);
	check_program("make", 0);
	check_program("gcc", 0);
	check_python_module("sphinx_rtd_theme", 1) if (!$virtualenv);
	check_program("xelatex", 1) if ($pdf);
	check_program("dot", 1);
	check_program("convert", 1);

	check_distros();

	if ($need_symlink) {
		printf "\tsudo ln -sf %s /usr/bin/sphinx-build\n\n",
		       which("sphinx-build-3");
	}
	if ($need_sphinx) {
		my $activate = "$virtenv_dir/bin/activate";
		if (-e "$ENV{'PWD'}/$activate") {
			printf "\nNeed to activate virtualenv with:\n";
			printf "\t. $activate\n";
		} else {
			my $virtualenv = findprog("virtualenv-3");
			$virtualenv = findprog("virtualenv") if (!$virtualenv);
			$virtualenv = "virtualenv" if (!$virtualenv);

			printf "\t$virtualenv $virtenv_dir\n";
			printf "\t. $activate\n";
			printf "\tpip install -r $requirement_file\n";
			$need++;
		}
	}
	printf "\n";

	print "All optional dependenties 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;
	} else {
		print "Usage:\n\t$0 <--no-virtualenv> <--no-pdf>\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;
$system_release = catcheck("/etc/issue") if !$system_release;
$system_release =~ s/\s+$//;

check_needs;
Commit	Line	Data
24071ac1 MCC	1	#!/usr/bin/perl
	2	use 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
5be33182	16	my $virtenv_dir = "sphinx_1.4";
fb947f3f	17	my $requirement_file = "Documentation/sphinx/requirements.txt";
5be33182	18
24071ac1 MCC	19	#
	20	# Static vars
	21	#
	22
	23	my %missing;
	24	my $system_release;
	25	my $need = 0;
	26	my $optional = 0;
	27	my $need_symlink = 0;
	28	my $need_sphinx = 0;
	29	my $install = "";
	30
	31	#
	32	# Command line arguments
	33	#
	34
	35	my $pdf = 1;
	36	my $virtualenv = 1;
	37
	38	#
	39	# List of required texlive packages on Fedora and OpenSuse
	40	#
	41
	42	my %texlive = (
	43	'adjustbox.sty' => 'texlive-adjustbox',
	44	'amsfonts.sty' => 'texlive-amsfonts',
	45	'amsmath.sty' => 'texlive-amsmath',
	46	'amssymb.sty' => 'texlive-amsfonts',
	47	'amsthm.sty' => 'texlive-amscls',
	48	'anyfontsize.sty' => 'texlive-anyfontsize',
	49	'atbegshi.sty' => 'texlive-oberdiek',
	50	'bm.sty' => 'texlive-tools',
	51	'capt-of.sty' => 'texlive-capt-of',
	52	'cmap.sty' => 'texlive-cmap',
	53	'ecrm1000.tfm' => 'texlive-ec',
	54	'eqparbox.sty' => 'texlive-eqparbox',
	55	'eu1enc.def' => 'texlive-euenc',
	56	'fancybox.sty' => 'texlive-fancybox',
	57	'fancyvrb.sty' => 'texlive-fancyvrb',
	58	'float.sty' => 'texlive-float',
	59	'fncychap.sty' => 'texlive-fncychap',
	60	'footnote.sty' => 'texlive-mdwtools',
	61	'framed.sty' => 'texlive-framed',
	62	'luatex85.sty' => 'texlive-luatex85',
	63	'multirow.sty' => 'texlive-multirow',
	64	'needspace.sty' => 'texlive-needspace',
	65	'palatino.sty' => 'texlive-psnfss',
	66	'parskip.sty' => 'texlive-parskip',
	67	'polyglossia.sty' => 'texlive-polyglossia',
	68	'tabulary.sty' => 'texlive-tabulary',
	69	'threeparttable.sty' => 'texlive-threeparttable',
	70	'titlesec.sty' => 'texlive-titlesec',
	71	'ucs.sty' => 'texlive-ucs',
	72	'upquote.sty' => 'texlive-upquote',
	73	'wrapfig.sty' => 'texlive-wrapfig',
	74	);
	75
	76	#
	77	# Subroutines that checks if a feature exists
	78	#
	79
	80	sub check_missing(%)
	81	{
	82	my %map = %{$_[0]};
83
84	foreach my $prog (sort keys %missing) {
85	my $is_optional = $missing{$prog};
86
87	if ($is_optional) {
88	print "Warning: better to also install \"$prog\".\n";
89	} else {
90	print "ERROR: please install \"$prog\", otherwise, build won't work.\n";
91	}
92	if (defined($map{$prog})) {
93	$install .= " " . $map{$prog};
94	} else {
95	$install .= " " . $prog;
96	}
97	}
98
99	$install =~ s/^\s//;
100	}
101
102	sub add_package($$)
103	{
104	my $package = shift;
105	my $is_optional = shift;
106
107	$missing{$package} = $is_optional;
108	if ($is_optional) {
109	$optional++;
110	} else {
111	$need++;
112	}
113	}
114
115	sub check_missing_file($$$)
116	{
117	my $file = shift;
118	my $package = shift;
119	my $is_optional = shift;
120
121	return if(-e $file);
122
123	add_package($package, $is_optional);
124	}
125
126	sub findprog($)
127	{
128	foreach(split(/:/, $ENV{PATH})) {
129	return "$_/$_[0]" if(-x "$_/$_[0]");
130	}
131	}
132
133	sub check_program($$)
134	{
135	my $prog = shift;
136	my $is_optional = shift;
137
138	return if findprog($prog);
139
140	add_package($prog, $is_optional);
141	}
142
143	sub check_perl_module($$)
144	{
145	my $prog = shift;
146	my $is_optional = shift;
147
148	my $err = system("perl -M$prog -e 1 2>/dev/null /dev/null");
149	return if ($err == 0);
150
151	add_package($prog, $is_optional);
152	}
153
154	sub check_python_module($$)
155	{
156	my $prog = shift;
157	my $is_optional = shift;
158
159	my $err = system("python3 -c 'import $prog' 2>/dev/null /dev/null");
160	return if ($err == 0);
161	my $err = system("python -c 'import $prog' 2>/dev/null /dev/null");
162	return if ($err == 0);
163
164	add_package($prog, $is_optional);
165	}
166
167	sub check_rpm_missing($$)
168	{
169	my @pkgs = @{$_[0]};
170	my $is_optional = $_[1];
171
172	foreach my $prog(@pkgs) {
173	my $err = system("rpm -q '$prog' 2>/dev/null >/dev/null");
174	add_package($prog, $is_optional) if ($err);
175	}
176	}
177
178	sub check_pacman_missing($$)
179	{
180	my @pkgs = @{$_[0]};
181	my $is_optional = $_[1];
182
183	foreach my $prog(@pkgs) {
184	my $err = system("pacman -Q '$prog' 2>/dev/null >/dev/null");
185	add_package($prog, $is_optional) if ($err);
186	}
187	}
188
189	sub check_missing_tex($)
190	{
191	my $is_optional = shift;
192	my $kpsewhich = findprog("kpsewhich");
193
194	foreach my $prog(keys %texlive) {
195	my $package = $texlive{$prog};
196	if (!$kpsewhich) {
197	add_package($package, $is_optional);
198	next;
199	}
200	my $file = qx($kpsewhich $prog);
201	add_package($package, $is_optional) if ($file =~ /^\s*$/);
202	}
203	}
204
205	sub check_sphinx()
206	{
207	return if findprog("sphinx-build");
208
209	if (findprog("sphinx-build-3")) {
210	$need_symlink = 1;
211	return;
212	}
213
214	if ($virtualenv) {
215	check_program("virtualenv", 0) if (!findprog("virtualenv-3"));
216	check_program("pip", 0) if (!findprog("pip3"));
217	$need_sphinx = 1;
218	} else {
219	add_package("python-sphinx", 0);
220	}
221	}
222
223	#
224	# Ancillary subroutines
225	#
226
227	sub catcheck($)
228	{
229	my $res = "";
230	$res = qx(cat $_[0]) if (-r $_[0]);
231	return $res;
232	}
233
234	sub which($)
235	{
236	my $file = shift;
237	my @path = split ":", $ENV{PATH};
238
239	foreach my $dir(@path) {
240	my $name = $dir.'/'.$file;
241	return $name if (-x $name );
242	}
243	return undef;
244	}
245
246	#
247	# Subroutines that check distro-specific hints
248	#
249
250	sub give_debian_hints()
251	{
252	my %map = (
253	"python-sphinx" => "python3-sphinx",
254	"sphinx_rtd_theme" => "python3-sphinx-rtd-theme",
255	"virtualenv" => "virtualenv",
256	"pip" => "python3-pip",
257	"dot" => "graphviz",
258	"convert" => "imagemagick",
259	"Pod::Usage" => "perl-modules",
260	"xelatex" => "texlive-xetex",
261	);
262
263	if ($pdf) {
264	check_missing_file("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf",
265	"fonts-dejavu", 1);
266	}
267
268	check_program("dvipng", 1) if ($pdf);
269	check_missing(\%map);
270
271	return if (!$need && !$optional);
272	printf("You should run:\n\n\tsudo apt-get install $install\n");
273	}
274
275	sub give_redhat_hints()
276	{
277	my %map = (
278	"python-sphinx" => "python3-sphinx",
279	"sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
280	"virtualenv" => "python3-virtualenv",
281	"pip" => "python3-pip",
282	"dot" => "graphviz",
283	"convert" => "ImageMagick",
284	"Pod::Usage" => "perl-Pod-Usage",
285	"xelatex" => "texlive-xetex-bin",
286	);
287
288	my @fedora_tex_pkgs = (
289	"texlive-collection-fontsrecommended",
290	"texlive-collection-latex",
291	"dejavu-sans-fonts",
292	"dejavu-serif-fonts",
293	"dejavu-sans-mono-fonts",
294	);
295
296	check_rpm_missing(\@fedora_tex_pkgs, 1) if ($pdf);
297	check_missing_tex(1) if ($pdf);
298	check_missing(\%map);
299
300	return if (!$need && !$optional);
301	printf("You should run:\n\n\tsudo dnf install -y $install\n");
302	}
303
304	sub give_opensuse_hints()
305	{
306	my %map = (
307	"python-sphinx" => "python3-sphinx",
308	"sphinx_rtd_theme" => "python3-sphinx_rtd_theme",
309	"virtualenv" => "python3-virtualenv",
310	"pip" => "python3-pip",
311	"dot" => "graphviz",
312	"convert" => "ImageMagick",
313	"Pod::Usage" => "perl-Pod-Usage",
314	"xelatex" => "texlive-xetex-bin",
315	);
316
317	my @suse_tex_pkgs = (
318	"texlive-babel-english",
319	"texlive-caption",
320	"texlive-colortbl",
321	"texlive-courier",
322	"texlive-dvips",
323	"texlive-helvetic",
324	"texlive-makeindex",
325	"texlive-metafont",
326	"texlive-metapost",
327	"texlive-palatino",
328	"texlive-preview",
329	"texlive-times",
330	"texlive-zapfchan",
331	"texlive-zapfding",
332	);
333
334	check_rpm_missing(\@suse_tex_pkgs, 1) if ($pdf);
335	check_missing_tex(1) if ($pdf);
336	check_missing(\%map);
337
338	return if (!$need && !$optional);
339	printf("You should run:\n\n\tsudo zypper install --no-recommends $install\n");
340	}
341
342	sub give_arch_linux_hints()
343	{
344	my %map = (
345	"sphinx_rtd_theme" => "python-sphinx_rtd_theme",
346	"virtualenv" => "python-virtualenv",
347	"pip" => "python-pip",
348	"dot" => "graphviz",
349	"convert" => "imagemagick",
350	"xelatex" => "texlive-bin",
351	);
352
353	my @archlinux_tex_pkgs = (
354	"texlive-core",
355	"texlive-latexextra",
356	"ttf-dejavu",
357	);
358	check_pacman_missing(\@archlinux_tex_pkgs, 1) if ($pdf);
359	check_missing(\%map);
360
361	return if (!$need && !$optional);
362	printf("You should run:\n\n\tsudo pacman -S $install\n");
363	}
364
365	sub give_gentoo_hints()
366	{
367	my %map = (
368	"sphinx_rtd_theme" => "dev-python/sphinx_rtd_theme",
369	"virtualenv" => "dev-python/virtualenv",
370	"pip" => "dev-python/pip",
371	"dot" => "media-gfx/graphviz",
372	"convert" => "media-gfx/imagemagick",
373	"xelatex" => "dev-texlive/texlive-xetex media-fonts/dejavu",
374	);
375
376	check_missing_file("/usr/share/fonts/dejavu/DejaVuSans.ttf",
377	"media-fonts/dejavu", 1) if ($pdf);
378
379	check_missing(\%map);
380
381	return if (!$need && !$optional);
382	printf("You should run:\n\n\tsudo emerge --ask $install\n");
383	}
384
385	sub check_distros()
386	{
387	# Distro-specific hints
388	if ($system_release =~ /Red Hat Enterprise Linux/) {
389	give_redhat_hints;
390	return;
391	}
392	if ($system_release =~ /Fedora/) {
393	give_redhat_hints;
394	return;
395	}
396	if ($system_release =~ /Ubuntu/) {
397	give_debian_hints;
398	return;
399	}
400	if ($system_release =~ /Debian/) {
401	give_debian_hints;
402	return;
403	}
404	if ($system_release =~ /openSUSE/) {
405	give_opensuse_hints;
406	return;
407	}
408	if ($system_release =~ /Arch Linux/) {
409	give_arch_linux_hints;
410	return;
411	}
412	if ($system_release =~ /Gentoo/) {
413	give_gentoo_hints;
414	return;
415	}
416
417	#
418	# Fall-back to generic hint code for other distros
419	# That's far from ideal, specially for LaTeX dependencies.
420	#
421	my %map = (
422	"sphinx-build" => "sphinx"
423	);
424	check_missing_tex(1) if ($pdf);
425	check_missing(\%map);
426	print "I don't know distro $system_release.\n";
427	print "So, I can't provide you a hint with the install procedure.\n";
428	print "There are likely missing dependencies.\n";
429	}
430
431	#
432	# Common dependencies
433	#
434
435	sub check_needs()
436	{
437	if ($system_release) {
438	print "Checking if the needed tools for $system_release are available\n";
439	} else {
440	print "Checking if the needed tools are present\n";
441	}
442
443	# Check for needed programs/tools
444	check_sphinx();
445	check_perl_module("Pod::Usage", 0);
446	check_program("make", 0);
447	check_program("gcc", 0);
448	check_python_module("sphinx_rtd_theme", 1) if (!$virtualenv);
449	check_program("xelatex", 1) if ($pdf);
450	check_program("dot", 1);
451	check_program("convert", 1);
452
453	check_distros();
454
455	if ($need_symlink) {
456	printf "\tsudo ln -sf %s /usr/bin/sphinx-build\n\n",
457	which("sphinx-build-3");
458	}
459	if ($need_sphinx) {
5be33182 MCC	460	my $activate = "$virtenv_dir/bin/activate";
	461	if (-e "$ENV{'PWD'}/$activate") {
	462	printf "\nNeed to activate virtualenv with:\n";
	463	printf "\t. $activate\n";
	464	} else {
	465	my $virtualenv = findprog("virtualenv-3");
	466	$virtualenv = findprog("virtualenv") if (!$virtualenv);
	467	$virtualenv = "virtualenv" if (!$virtualenv);
	468
	469	printf "\t$virtualenv $virtenv_dir\n";
	470	printf "\t. $activate\n";
fb947f3f	471	printf "\tpip install -r $requirement_file\n";
5be33182 MCC	472	$need++;
5be33182 MCC	473	}
24071ac1 MCC	474	}
	475	printf "\n";
	476
	477	print "All optional dependenties are met.\n" if (!$optional);
	478
	479	if ($need == 1) {
	480	die "Can't build as $need mandatory dependency is missing";
	481	} elsif ($need) {
	482	die "Can't build as $need mandatory dependencies are missing";
	483	}
	484
	485	print "Needed package dependencies are met.\n";
	486	}
	487
	488	#
	489	# Main
	490	#
	491
	492	while (@ARGV) {
	493	my $arg = shift(@ARGV);
	494
	495	if ($arg eq "--no-virtualenv") {
	496	$virtualenv = 0;
	497	} elsif ($arg eq "--no-pdf"){
	498	$pdf = 0;
	499	} else {
	500	print "Usage:\n\t$0 <--no-virtualenv> <--no-pdf>\n\n";
	501	exit -1;
	502	}
	503	}
	504
	505	#
	506	# Determine the system type. There's no standard unique way that would
	507	# work with all distros with a minimal package install. So, several
	508	# methods are used here.
	509	#
	510	# By default, it will use lsb_release function. If not available, it will
	511	# fail back to reading the known different places where the distro name
	512	# is stored
	513	#
	514
	515	$system_release = qx(lsb_release -d) if which("lsb_release");
	516	$system_release =~ s/Description:\s*// if ($system_release);
	517	$system_release = catcheck("/etc/system-release") if !$system_release;
	518	$system_release = catcheck("/etc/redhat-release") if !$system_release;
	519	$system_release = catcheck("/etc/lsb-release") if !$system_release;
	520	$system_release = catcheck("/etc/gentoo-release") if !$system_release;
	521	$system_release = catcheck("/etc/issue") if !$system_release;
	522	$system_release =~ s/\s+$//;
	523
	524	check_needs;