1#!/usr/bin/env 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_pip = 0; 26my $need_virtualenv = 0; 27my $rec_sphinx_upgrade = 0; 28my $verbose_warn_install = 1; 29my $install = ""; 30my $virtenv_dir = ""; 31my $python_cmd = ""; 32my $activate_cmd; 33my $min_version; 34my $cur_version; 35my $rec_version = "3.4.3"; 36my $latest_avail_ver; 37 38# 39# Command line arguments 40# 41 42my $pdf = 1; 43my $virtualenv = 1; 44my $version_check = 0; 45 46# 47# List of required texlive packages on Fedora and OpenSuse 48# 49 50my %texlive = ( 51 'amsfonts.sty' => 'texlive-amsfonts', 52 'amsmath.sty' => 'texlive-amsmath', 53 'amssymb.sty' => 'texlive-amsfonts', 54 'amsthm.sty' => 'texlive-amscls', 55 'anyfontsize.sty' => 'texlive-anyfontsize', 56 'atbegshi.sty' => 'texlive-oberdiek', 57 'bm.sty' => 'texlive-tools', 58 'capt-of.sty' => 'texlive-capt-of', 59 'cmap.sty' => 'texlive-cmap', 60 'ecrm1000.tfm' => 'texlive-ec', 61 'eqparbox.sty' => 'texlive-eqparbox', 62 'eu1enc.def' => 'texlive-euenc', 63 'fancybox.sty' => 'texlive-fancybox', 64 'fancyvrb.sty' => 'texlive-fancyvrb', 65 'float.sty' => 'texlive-float', 66 'fncychap.sty' => 'texlive-fncychap', 67 'footnote.sty' => 'texlive-mdwtools', 68 'framed.sty' => 'texlive-framed', 69 'luatex85.sty' => 'texlive-luatex85', 70 'multirow.sty' => 'texlive-multirow', 71 'needspace.sty' => 'texlive-needspace', 72 'palatino.sty' => 'texlive-psnfss', 73 'parskip.sty' => 'texlive-parskip', 74 'polyglossia.sty' => 'texlive-polyglossia', 75 'tabulary.sty' => 'texlive-tabulary', 76 'threeparttable.sty' => 'texlive-threeparttable', 77 'titlesec.sty' => 'texlive-titlesec', 78 'ucs.sty' => 'texlive-ucs', 79 'upquote.sty' => 'texlive-upquote', 80 'wrapfig.sty' => 'texlive-wrapfig', 81 'ctexhook.sty' => 'texlive-ctex', 82); 83 84# 85# Subroutines that checks if a feature exists 86# 87 88sub check_missing(%) 89{ 90 my %map = %{$_[0]}; 91 92 foreach my $prog (sort keys %missing) { 93 my $is_optional = $missing{$prog}; 94 95 # At least on some LTS distros like CentOS 7, texlive doesn't 96 # provide all packages we need. When such distros are 97 # detected, we have to disable PDF output. 98 # 99 # So, we need to ignore the packages that distros would 100 # need for LaTeX to work 101 if ($is_optional == 2 && !$pdf) { 102 $optional--; 103 next; 104 } 105 106 if ($verbose_warn_install) { 107 if ($is_optional) { 108 print "Warning: better to also install \"$prog\".\n"; 109 } else { 110 print "ERROR: please install \"$prog\", otherwise, build won't work.\n"; 111 } 112 } 113 if (defined($map{$prog})) { 114 $install .= " " . $map{$prog}; 115 } else { 116 $install .= " " . $prog; 117 } 118 } 119 120 $install =~ s/^\s//; 121} 122 123sub add_package($$) 124{ 125 my $package = shift; 126 my $is_optional = shift; 127 128 $missing{$package} = $is_optional; 129 if ($is_optional) { 130 $optional++; 131 } else { 132 $need++; 133 } 134} 135 136sub check_missing_file($$$) 137{ 138 my $files = shift; 139 my $package = shift; 140 my $is_optional = shift; 141 142 for (@$files) { 143 return if(-e $_); 144 } 145 146 add_package($package, $is_optional); 147} 148 149sub findprog($) 150{ 151 foreach(split(/:/, $ENV{PATH})) { 152 return "$_/$_[0]" if(-x "$_/$_[0]"); 153 } 154} 155 156sub find_python_no_venv() 157{ 158 my $prog = shift; 159 160 my $cur_dir = qx(pwd); 161 $cur_dir =~ s/\s+$//; 162 163 foreach my $dir (split(/:/, $ENV{PATH})) { 164 next if ($dir =~ m,($cur_dir)/sphinx,); 165 return "$dir/python3" if(-x "$dir/python3"); 166 } 167 foreach my $dir (split(/:/, $ENV{PATH})) { 168 next if ($dir =~ m,($cur_dir)/sphinx,); 169 return "$dir/python" if(-x "$dir/python"); 170 } 171 return "python"; 172} 173 174sub check_program($$) 175{ 176 my $prog = shift; 177 my $is_optional = shift; 178 179 return $prog if findprog($prog); 180 181 add_package($prog, $is_optional); 182} 183 184sub check_perl_module($$) 185{ 186 my $prog = shift; 187 my $is_optional = shift; 188 189 my $err = system("perl -M$prog -e 1 2>/dev/null /dev/null"); 190 return if ($err == 0); 191 192 add_package($prog, $is_optional); 193} 194 195sub check_python_module($$) 196{ 197 my $prog = shift; 198 my $is_optional = shift; 199 200 return if (!$python_cmd); 201 202 my $err = system("$python_cmd -c 'import $prog' 2>/dev/null /dev/null"); 203 return if ($err == 0); 204 205 add_package($prog, $is_optional); 206} 207 208sub check_rpm_missing($$) 209{ 210 my @pkgs = @{$_[0]}; 211 my $is_optional = $_[1]; 212 213 foreach my $prog(@pkgs) { 214 my $err = system("rpm -q '$prog' 2>/dev/null >/dev/null"); 215 add_package($prog, $is_optional) if ($err); 216 } 217} 218 219sub check_pacman_missing($$) 220{ 221 my @pkgs = @{$_[0]}; 222 my $is_optional = $_[1]; 223 224 foreach my $prog(@pkgs) { 225 my $err = system("pacman -Q '$prog' 2>/dev/null >/dev/null"); 226 add_package($prog, $is_optional) if ($err); 227 } 228} 229 230sub check_missing_tex($) 231{ 232 my $is_optional = shift; 233 my $kpsewhich = findprog("kpsewhich"); 234 235 foreach my $prog(keys %texlive) { 236 my $package = $texlive{$prog}; 237 if (!$kpsewhich) { 238 add_package($package, $is_optional); 239 next; 240 } 241 my $file = qx($kpsewhich $prog); 242 add_package($package, $is_optional) if ($file =~ /^\s*$/); 243 } 244} 245 246sub get_sphinx_fname() 247{ 248 my $fname = "sphinx-build"; 249 return $fname if findprog($fname); 250 251 $fname = "sphinx-build-3"; 252 if (findprog($fname)) { 253 $need_symlink = 1; 254 return $fname; 255 } 256 257 return ""; 258} 259 260sub get_sphinx_version($) 261{ 262 my $cmd = shift; 263 my $ver; 264 265 open IN, "$cmd --version 2>&1 |"; 266 while (<IN>) { 267 if (m/^\s*sphinx-build\s+([\d\.]+)((\+\/[\da-f]+)|(b\d+))?$/) { 268 $ver=$1; 269 last; 270 } 271 # Sphinx 1.2.x uses a different format 272 if (m/^\s*Sphinx.*\s+([\d\.]+)$/) { 273 $ver=$1; 274 last; 275 } 276 } 277 close IN; 278 return $ver; 279} 280 281sub check_sphinx() 282{ 283 open IN, $conf or die "Can't open $conf"; 284 while (<IN>) { 285 if (m/^\s*needs_sphinx\s*=\s*[\'\"]([\d\.]+)[\'\"]/) { 286 $min_version=$1; 287 last; 288 } 289 } 290 close IN; 291 292 die "Can't get needs_sphinx version from $conf" if (!$min_version); 293 294 $virtenv_dir = $virtenv_prefix . "latest"; 295 296 my $sphinx = get_sphinx_fname(); 297 if ($sphinx eq "") { 298 $need_sphinx = 1; 299 return; 300 } 301 302 $cur_version = get_sphinx_version($sphinx); 303 die "$sphinx didn't return its version" if (!$cur_version); 304 305 if ($cur_version lt $min_version) { 306 printf "ERROR: Sphinx version is %s. It should be >= %s\n", 307 $cur_version, $min_version; 308 $need_sphinx = 1; 309 return; 310 } 311 312 return if ($cur_version lt $rec_version); 313 314 # On version check mode, just assume Sphinx has all mandatory deps 315 exit (0) if ($version_check); 316} 317 318# 319# Ancillary subroutines 320# 321 322sub catcheck($) 323{ 324 my $res = ""; 325 $res = qx(cat $_[0]) if (-r $_[0]); 326 return $res; 327} 328 329sub which($) 330{ 331 my $file = shift; 332 my @path = split ":", $ENV{PATH}; 333 334 foreach my $dir(@path) { 335 my $name = $dir.'/'.$file; 336 return $name if (-x $name ); 337 } 338 return undef; 339} 340 341# 342# Subroutines that check distro-specific hints 343# 344 345sub give_debian_hints() 346{ 347 my %map = ( 348 "python-sphinx" => "python3-sphinx", 349 "yaml" => "python3-yaml", 350 "ensurepip" => "python3-venv", 351 "virtualenv" => "virtualenv", 352 "dot" => "graphviz", 353 "convert" => "imagemagick", 354 "Pod::Usage" => "perl-modules", 355 "xelatex" => "texlive-xetex", 356 "rsvg-convert" => "librsvg2-bin", 357 ); 358 359 if ($pdf) { 360 check_missing_file(["/usr/share/texlive/texmf-dist/tex/latex/ctex/ctexhook.sty"], 361 "texlive-lang-chinese", 2); 362 363 check_missing_file(["/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"], 364 "fonts-dejavu", 2); 365 366 check_missing_file(["/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc", 367 "/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc", 368 "/usr/share/fonts/opentype/noto/NotoSerifCJK-Regular.ttc"], 369 "fonts-noto-cjk", 2); 370 } 371 372 check_program("dvipng", 2) if ($pdf); 373 check_missing(\%map); 374 375 return if (!$need && !$optional); 376 printf("You should run:\n") if ($verbose_warn_install); 377 printf("\n\tsudo apt-get install $install\n"); 378} 379 380sub give_redhat_hints() 381{ 382 my %map = ( 383 "python-sphinx" => "python3-sphinx", 384 "yaml" => "python3-pyyaml", 385 "virtualenv" => "python3-virtualenv", 386 "dot" => "graphviz", 387 "convert" => "ImageMagick", 388 "Pod::Usage" => "perl-Pod-Usage", 389 "xelatex" => "texlive-xetex-bin", 390 "rsvg-convert" => "librsvg2-tools", 391 ); 392 393 my @fedora26_opt_pkgs = ( 394 "graphviz-gd", # Fedora 26: needed for PDF support 395 ); 396 397 my @fedora_tex_pkgs = ( 398 "texlive-collection-fontsrecommended", 399 "texlive-collection-latex", 400 "texlive-xecjk", 401 "dejavu-sans-fonts", 402 "dejavu-serif-fonts", 403 "dejavu-sans-mono-fonts", 404 ); 405 406 # 407 # Checks valid for RHEL/CentOS version 7.x. 408 # 409 my $old = 0; 410 my $rel; 411 my $noto_sans_redhat = "google-noto-sans-cjk-ttc-fonts"; 412 $rel = $1 if ($system_release =~ /release\s+(\d+)/); 413 414 if (!($system_release =~ /Fedora/)) { 415 $map{"virtualenv"} = "python-virtualenv"; 416 417 if ($rel && $rel < 8) { 418 $old = 1; 419 $pdf = 0; 420 421 printf("Note: texlive packages on RHEL/CENTOS <= 7 are incomplete. Can't support PDF output\n"); 422 printf("If you want to build PDF, please read:\n"); 423 printf("\thttps://www.systutorials.com/241660/how-to-install-tex-live-on-centos-7-linux/\n"); 424 } 425 } else { 426 if ($rel && $rel < 26) { 427 $old = 1; 428 } 429 if ($rel && $rel >= 38) { 430 $noto_sans_redhat = "google-noto-sans-cjk-fonts"; 431 } 432 } 433 if (!$rel) { 434 printf("Couldn't identify release number\n"); 435 $old = 1; 436 $pdf = 0; 437 } 438 439 if ($pdf) { 440 check_missing_file(["/usr/share/fonts/google-noto-cjk/NotoSansCJK-Regular.ttc", 441 "/usr/share/fonts/google-noto-sans-cjk-fonts/NotoSansCJK-Regular.ttc"], 442 $noto_sans_redhat, 2); 443 } 444 445 check_rpm_missing(\@fedora26_opt_pkgs, 2) if ($pdf && !$old); 446 check_rpm_missing(\@fedora_tex_pkgs, 2) if ($pdf); 447 check_missing_tex(2) if ($pdf); 448 check_missing(\%map); 449 450 return if (!$need && !$optional); 451 452 if (!$old) { 453 # dnf, for Fedora 18+ 454 printf("You should run:\n") if ($verbose_warn_install); 455 printf("\n\tsudo dnf install -y $install\n"); 456 } else { 457 # yum, for RHEL (and clones) or Fedora version < 18 458 printf("You should run:\n") if ($verbose_warn_install); 459 printf("\n\tsudo yum install -y $install\n"); 460 } 461} 462 463sub give_opensuse_hints() 464{ 465 my %map = ( 466 "python-sphinx" => "python3-sphinx", 467 "yaml" => "python3-pyyaml", 468 "virtualenv" => "python3-virtualenv", 469 "dot" => "graphviz", 470 "convert" => "ImageMagick", 471 "Pod::Usage" => "perl-Pod-Usage", 472 "xelatex" => "texlive-xetex-bin", 473 ); 474 475 # On Tumbleweed, this package is also named rsvg-convert 476 $map{"rsvg-convert"} = "rsvg-view" if (!($system_release =~ /Tumbleweed/)); 477 478 my @suse_tex_pkgs = ( 479 "texlive-babel-english", 480 "texlive-caption", 481 "texlive-colortbl", 482 "texlive-courier", 483 "texlive-dvips", 484 "texlive-helvetic", 485 "texlive-makeindex", 486 "texlive-metafont", 487 "texlive-metapost", 488 "texlive-palatino", 489 "texlive-preview", 490 "texlive-times", 491 "texlive-zapfchan", 492 "texlive-zapfding", 493 ); 494 495 $map{"latexmk"} = "texlive-latexmk-bin"; 496 497 # FIXME: add support for installing CJK fonts 498 # 499 # I tried hard, but was unable to find a way to install 500 # "Noto Sans CJK SC" on openSUSE 501 502 check_rpm_missing(\@suse_tex_pkgs, 2) if ($pdf); 503 check_missing_tex(2) if ($pdf); 504 check_missing(\%map); 505 506 return if (!$need && !$optional); 507 printf("You should run:\n") if ($verbose_warn_install); 508 printf("\n\tsudo zypper install --no-recommends $install\n"); 509} 510 511sub give_mageia_hints() 512{ 513 my %map = ( 514 "python-sphinx" => "python3-sphinx", 515 "yaml" => "python3-yaml", 516 "virtualenv" => "python3-virtualenv", 517 "dot" => "graphviz", 518 "convert" => "ImageMagick", 519 "Pod::Usage" => "perl-Pod-Usage", 520 "xelatex" => "texlive", 521 "rsvg-convert" => "librsvg2", 522 ); 523 524 my @tex_pkgs = ( 525 "texlive-fontsextra", 526 ); 527 528 $map{"latexmk"} = "texlive-collection-basic"; 529 530 my $packager_cmd; 531 my $noto_sans; 532 if ($system_release =~ /OpenMandriva/) { 533 $packager_cmd = "dnf install"; 534 $noto_sans = "noto-sans-cjk-fonts"; 535 @tex_pkgs = ( "texlive-collection-fontsextra" ); 536 } else { 537 $packager_cmd = "urpmi"; 538 $noto_sans = "google-noto-sans-cjk-ttc-fonts"; 539 } 540 541 542 if ($pdf) { 543 check_missing_file(["/usr/share/fonts/google-noto-cjk/NotoSansCJK-Regular.ttc", 544 "/usr/share/fonts/TTF/NotoSans-Regular.ttf"], 545 $noto_sans, 2); 546 } 547 548 check_rpm_missing(\@tex_pkgs, 2) if ($pdf); 549 check_missing(\%map); 550 551 return if (!$need && !$optional); 552 printf("You should run:\n") if ($verbose_warn_install); 553 printf("\n\tsudo $packager_cmd $install\n"); 554} 555 556sub give_arch_linux_hints() 557{ 558 my %map = ( 559 "yaml" => "python-yaml", 560 "virtualenv" => "python-virtualenv", 561 "dot" => "graphviz", 562 "convert" => "imagemagick", 563 "xelatex" => "texlive-xetex", 564 "latexmk" => "texlive-core", 565 "rsvg-convert" => "extra/librsvg", 566 ); 567 568 my @archlinux_tex_pkgs = ( 569 "texlive-core", 570 "texlive-latexextra", 571 "ttf-dejavu", 572 ); 573 check_pacman_missing(\@archlinux_tex_pkgs, 2) if ($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 && !$optional); 583 printf("You should run:\n") if ($verbose_warn_install); 584 printf("\n\tsudo pacman -S $install\n"); 585} 586 587sub give_gentoo_hints() 588{ 589 my %map = ( 590 "yaml" => "dev-python/pyyaml", 591 "virtualenv" => "dev-python/virtualenv", 592 "dot" => "media-gfx/graphviz", 593 "convert" => "media-gfx/imagemagick", 594 "xelatex" => "dev-texlive/texlive-xetex media-fonts/dejavu", 595 "rsvg-convert" => "gnome-base/librsvg", 596 ); 597 598 check_missing_file(["/usr/share/fonts/dejavu/DejaVuSans.ttf"], 599 "media-fonts/dejavu", 2) if ($pdf); 600 601 if ($pdf) { 602 check_missing_file(["/usr/share/fonts/noto-cjk/NotoSansCJKsc-Regular.otf", 603 "/usr/share/fonts/noto-cjk/NotoSerifCJK-Regular.ttc"], 604 "media-fonts/noto-cjk", 2); 605 } 606 607 check_missing(\%map); 608 609 return if (!$need && !$optional); 610 611 printf("You should run:\n") if ($verbose_warn_install); 612 printf("\n"); 613 614 my $imagemagick = "media-gfx/imagemagick svg png"; 615 my $cairo = "media-gfx/graphviz cairo pdf"; 616 my $portage_imagemagick = "/etc/portage/package.use/imagemagick"; 617 my $portage_cairo = "/etc/portage/package.use/graphviz"; 618 619 if (qx(grep imagemagick $portage_imagemagick 2>/dev/null) eq "") { 620 printf("\tsudo su -c 'echo \"$imagemagick\" > $portage_imagemagick'\n") 621 } 622 if (qx(grep graphviz $portage_cairo 2>/dev/null) eq "") { 623 printf("\tsudo su -c 'echo \"$cairo\" > $portage_cairo'\n"); 624 } 625 626 printf("\tsudo emerge --ask $install\n"); 627 628} 629 630sub check_distros() 631{ 632 # Distro-specific hints 633 if ($system_release =~ /Red Hat Enterprise Linux/) { 634 give_redhat_hints; 635 return; 636 } 637 if ($system_release =~ /CentOS/) { 638 give_redhat_hints; 639 return; 640 } 641 if ($system_release =~ /Scientific Linux/) { 642 give_redhat_hints; 643 return; 644 } 645 if ($system_release =~ /Oracle Linux Server/) { 646 give_redhat_hints; 647 return; 648 } 649 if ($system_release =~ /Fedora/) { 650 give_redhat_hints; 651 return; 652 } 653 if ($system_release =~ /Ubuntu/) { 654 give_debian_hints; 655 return; 656 } 657 if ($system_release =~ /Debian/) { 658 give_debian_hints; 659 return; 660 } 661 if ($system_release =~ /openSUSE/) { 662 give_opensuse_hints; 663 return; 664 } 665 if ($system_release =~ /Mageia/) { 666 give_mageia_hints; 667 return; 668 } 669 if ($system_release =~ /OpenMandriva/) { 670 give_mageia_hints; 671 return; 672 } 673 if ($system_release =~ /Arch Linux/) { 674 give_arch_linux_hints; 675 return; 676 } 677 if ($system_release =~ /Gentoo/) { 678 give_gentoo_hints; 679 return; 680 } 681 682 # 683 # Fall-back to generic hint code for other distros 684 # That's far from ideal, specially for LaTeX dependencies. 685 # 686 my %map = ( 687 "sphinx-build" => "sphinx" 688 ); 689 check_missing_tex(2) if ($pdf); 690 check_missing(\%map); 691 print "I don't know distro $system_release.\n"; 692 print "So, I can't provide you a hint with the install procedure.\n"; 693 print "There are likely missing dependencies.\n"; 694} 695 696# 697# Common dependencies 698# 699 700sub deactivate_help() 701{ 702 printf "\n If you want to exit the virtualenv, you can use:\n"; 703 printf "\tdeactivate\n"; 704} 705 706sub get_virtenv() 707{ 708 my $ver; 709 my $min_activate = "$ENV{'PWD'}/${virtenv_prefix}${min_version}/bin/activate"; 710 my @activates = glob "$ENV{'PWD'}/${virtenv_prefix}*/bin/activate"; 711 712 @activates = sort {$b cmp $a} @activates; 713 714 foreach my $f (@activates) { 715 next if ($f lt $min_activate); 716 717 my $sphinx_cmd = $f; 718 $sphinx_cmd =~ s/activate/sphinx-build/; 719 next if (! -f $sphinx_cmd); 720 721 my $ver = get_sphinx_version($sphinx_cmd); 722 723 if (!$ver) { 724 $f =~ s#/bin/activate##; 725 print("Warning: virtual environment $f is not working.\nPython version upgrade? Remove it with:\n\n\trm -rf $f\n\n"); 726 } 727 728 if ($need_sphinx && ($ver ge $min_version)) { 729 return ($f, $ver); 730 } elsif ($ver gt $cur_version) { 731 return ($f, $ver); 732 } 733 } 734 return ("", ""); 735} 736 737sub recommend_sphinx_upgrade() 738{ 739 my $venv_ver; 740 741 # Avoid running sphinx-builds from venv if $cur_version is good 742 if ($cur_version && ($cur_version ge $rec_version)) { 743 $latest_avail_ver = $cur_version; 744 return; 745 } 746 747 # Get the highest version from sphinx_*/bin/sphinx-build and the 748 # corresponding command to activate the venv/virtenv 749 ($activate_cmd, $venv_ver) = get_virtenv(); 750 751 # Store the highest version from Sphinx existing virtualenvs 752 if (($activate_cmd ne "") && ($venv_ver gt $cur_version)) { 753 $latest_avail_ver = $venv_ver; 754 } else { 755 $latest_avail_ver = $cur_version if ($cur_version); 756 } 757 758 # As we don't know package version of Sphinx, and there's no 759 # virtual environments, don't check if upgrades are needed 760 if (!$virtualenv) { 761 return if (!$latest_avail_ver); 762 } 763 764 # Either there are already a virtual env or a new one should be created 765 $need_pip = 1; 766 767 return if (!$latest_avail_ver); 768 769 # Return if the reason is due to an upgrade or not 770 if ($latest_avail_ver lt $rec_version) { 771 $rec_sphinx_upgrade = 1; 772 } 773 774 return $latest_avail_ver; 775} 776 777# 778# The logic here is complex, as it have to deal with different versions: 779# - minimal supported version; 780# - minimal PDF version; 781# - recommended version. 782# It also needs to work fine with both distro's package and venv/virtualenv 783sub recommend_sphinx_version($) 784{ 785 my $virtualenv_cmd = shift; 786 787 # Version is OK. Nothing to do. 788 if ($cur_version && ($cur_version ge $rec_version)) { 789 return; 790 }; 791 792 if (!$need_sphinx) { 793 # sphinx-build is present and its version is >= $min_version 794 795 #only recommend enabling a newer virtenv version if makes sense. 796 if ($latest_avail_ver gt $cur_version) { 797 printf "\nYou may also use the newer Sphinx version $latest_avail_ver with:\n"; 798 printf "\tdeactivate\n" if ($ENV{'PWD'} =~ /${virtenv_prefix}/); 799 printf "\t. $activate_cmd\n"; 800 deactivate_help(); 801 802 return; 803 } 804 return if ($latest_avail_ver ge $rec_version); 805 } 806 807 if (!$virtualenv) { 808 # No sphinx either via package or via virtenv. As we can't 809 # Compare the versions here, just return, recommending the 810 # user to install it from the package distro. 811 return if (!$latest_avail_ver); 812 813 # User doesn't want a virtenv recommendation, but he already 814 # installed one via virtenv with a newer version. 815 # So, print commands to enable it 816 if ($latest_avail_ver gt $cur_version) { 817 printf "\nYou may also use the Sphinx virtualenv version $latest_avail_ver with:\n"; 818 printf "\tdeactivate\n" if ($ENV{'PWD'} =~ /${virtenv_prefix}/); 819 printf "\t. $activate_cmd\n"; 820 deactivate_help(); 821 822 return; 823 } 824 print "\n"; 825 } else { 826 $need++ if ($need_sphinx); 827 } 828 829 # Suggest newer versions if current ones are too old 830 if ($latest_avail_ver && $latest_avail_ver ge $min_version) { 831 # If there's a good enough version, ask the user to enable it 832 if ($latest_avail_ver ge $rec_version) { 833 printf "\nNeed to activate Sphinx (version $latest_avail_ver) on virtualenv with:\n"; 834 printf "\t. $activate_cmd\n"; 835 deactivate_help(); 836 837 return; 838 } 839 840 # Version is above the minimal required one, but may be 841 # below the recommended one. So, print warnings/notes 842 843 if ($latest_avail_ver lt $rec_version) { 844 print "Warning: It is recommended at least Sphinx version $rec_version.\n"; 845 } 846 } 847 848 # At this point, either it needs Sphinx or upgrade is recommended, 849 # both via pip 850 851 if ($rec_sphinx_upgrade) { 852 if (!$virtualenv) { 853 print "Instead of install/upgrade Python Sphinx pkg, you could use pip/pypi with:\n\n"; 854 } else { 855 print "To upgrade Sphinx, use:\n\n"; 856 } 857 } else { 858 print "\nSphinx needs to be installed either:\n1) via pip/pypi with:\n\n"; 859 } 860 861 $python_cmd = find_python_no_venv(); 862 863 printf "\t$virtualenv_cmd $virtenv_dir\n"; 864 865 printf "\t. $virtenv_dir/bin/activate\n"; 866 printf "\tpip install -r $requirement_file\n"; 867 deactivate_help(); 868 869 printf "\n2) As a package with:\n"; 870 871 my $old_need = $need; 872 my $old_optional = $optional; 873 %missing = (); 874 $pdf = 0; 875 $optional = 0; 876 $install = ""; 877 $verbose_warn_install = 0; 878 879 add_package("python-sphinx", 0); 880 881 check_distros(); 882 883 $need = $old_need; 884 $optional = $old_optional; 885 886 printf "\n Please note that Sphinx >= 3.0 will currently produce false-positive\n"; 887 printf " warning when the same name is used for more than one type (functions,\n"; 888 printf " structs, enums,...). This is known Sphinx bug. For more details, see:\n"; 889 printf "\thttps://github.com/sphinx-doc/sphinx/pull/8313\n"; 890} 891 892sub check_needs() 893{ 894 # Check if Sphinx is already accessible from current environment 895 check_sphinx(); 896 897 if ($system_release) { 898 print "Detected OS: $system_release.\n"; 899 } else { 900 print "Unknown OS\n"; 901 } 902 printf "Sphinx version: %s\n\n", $cur_version if ($cur_version); 903 904 # Check python command line, trying first python3 905 $python_cmd = findprog("python3"); 906 $python_cmd = check_program("python", 0) if (!$python_cmd); 907 908 # Check the type of virtual env, depending on Python version 909 if ($python_cmd) { 910 if ($virtualenv) { 911 my $tmp = qx($python_cmd --version 2>&1); 912 if ($tmp =~ m/(\d+\.)(\d+\.)/) { 913 if ($1 < 3) { 914 # Fail if it finds python2 (or worse) 915 die "Python 3 is required to build the kernel docs\n"; 916 } 917 if ($1 == 3 && $2 < 3) { 918 # Need Python 3.3 or upper for venv 919 $need_virtualenv = 1; 920 } 921 } else { 922 die "Warning: couldn't identify $python_cmd version!"; 923 } 924 } else { 925 add_package("python-sphinx", 0); 926 } 927 } 928 929 my $venv_ver = recommend_sphinx_upgrade(); 930 931 my $virtualenv_cmd; 932 933 if ($need_pip) { 934 # Set virtualenv command line, if python < 3.3 935 if ($need_virtualenv) { 936 $virtualenv_cmd = findprog("virtualenv-3"); 937 $virtualenv_cmd = findprog("virtualenv-3.5") if (!$virtualenv_cmd); 938 if (!$virtualenv_cmd) { 939 check_program("virtualenv", 0); 940 $virtualenv_cmd = "virtualenv"; 941 } 942 } else { 943 $virtualenv_cmd = "$python_cmd -m venv"; 944 check_python_module("ensurepip", 0); 945 } 946 } 947 948 # Check for needed programs/tools 949 check_perl_module("Pod::Usage", 0); 950 check_python_module("yaml", 0); 951 check_program("make", 0); 952 check_program("gcc", 0); 953 check_program("dot", 1); 954 check_program("convert", 1); 955 956 # Extra PDF files - should use 2 for is_optional 957 check_program("xelatex", 2) if ($pdf); 958 check_program("rsvg-convert", 2) if ($pdf); 959 check_program("latexmk", 2) if ($pdf); 960 961 # Do distro-specific checks and output distro-install commands 962 check_distros(); 963 964 if (!$python_cmd) { 965 if ($need == 1) { 966 die "Can't build as $need mandatory dependency is missing"; 967 } elsif ($need) { 968 die "Can't build as $need mandatory dependencies are missing"; 969 } 970 } 971 972 # Check if sphinx-build is called sphinx-build-3 973 if ($need_symlink) { 974 printf "\tsudo ln -sf %s /usr/bin/sphinx-build\n\n", 975 which("sphinx-build-3"); 976 } 977 978 recommend_sphinx_version($virtualenv_cmd); 979 printf "\n"; 980 981 print "All optional dependencies are met.\n" if (!$optional); 982 983 if ($need == 1) { 984 die "Can't build as $need mandatory dependency is missing"; 985 } elsif ($need) { 986 die "Can't build as $need mandatory dependencies are missing"; 987 } 988 989 print "Needed package dependencies are met.\n"; 990} 991 992# 993# Main 994# 995 996while (@ARGV) { 997 my $arg = shift(@ARGV); 998 999 if ($arg eq "--no-virtualenv") { 1000 $virtualenv = 0; 1001 } elsif ($arg eq "--no-pdf"){ 1002 $pdf = 0; 1003 } elsif ($arg eq "--version-check"){ 1004 $version_check = 1; 1005 } else { 1006 print "Usage:\n\t$0 <--no-virtualenv> <--no-pdf> <--version-check>\n\n"; 1007 print "Where:\n"; 1008 print "\t--no-virtualenv\t- Recommend installing Sphinx instead of using a virtualenv\n"; 1009 print "\t--version-check\t- if version is compatible, don't check for missing dependencies\n"; 1010 print "\t--no-pdf\t- don't check for dependencies required to build PDF docs\n\n"; 1011 exit -1; 1012 } 1013} 1014 1015# 1016# Determine the system type. There's no standard unique way that would 1017# work with all distros with a minimal package install. So, several 1018# methods are used here. 1019# 1020# By default, it will use lsb_release function. If not available, it will 1021# fail back to reading the known different places where the distro name 1022# is stored 1023# 1024 1025$system_release = qx(lsb_release -d) if which("lsb_release"); 1026$system_release =~ s/Description:\s*// if ($system_release); 1027$system_release = catcheck("/etc/system-release") if !$system_release; 1028$system_release = catcheck("/etc/redhat-release") if !$system_release; 1029$system_release = catcheck("/etc/lsb-release") if !$system_release; 1030$system_release = catcheck("/etc/gentoo-release") if !$system_release; 1031 1032# This seems more common than LSB these days 1033if (!$system_release) { 1034 my %os_var; 1035 if (open IN, "cat /etc/os-release|") { 1036 while (<IN>) { 1037 if (m/^([\w\d\_]+)=\"?([^\"]*)\"?\n/) { 1038 $os_var{$1}=$2; 1039 } 1040 } 1041 $system_release = $os_var{"NAME"}; 1042 if (defined($os_var{"VERSION_ID"})) { 1043 $system_release .= " " . $os_var{"VERSION_ID"} if (defined($os_var{"VERSION_ID"})); 1044 } else { 1045 $system_release .= " " . $os_var{"VERSION"}; 1046 } 1047 } 1048} 1049$system_release = catcheck("/etc/issue") if !$system_release; 1050$system_release =~ s/\s+$//; 1051 1052check_needs; 1053