make/utilities.pm

   1 #
   2 # InspIRCd -- Internet Relay Chat Daemon
   3 #
   4 #   Copyright (C) 2010 Daniel De Graaf <danieldg@inspircd.org>
   5 #   Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
   6 #   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
   7 #   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
   8 #
   9 # This file is part of InspIRCd.  InspIRCd is free software: you can
  10 # redistribute it and/or modify it under the terms of the GNU General Public
  11 # License as published by the Free Software Foundation, version 2.
  12 #
  13 # This program is distributed in the hope that it will be useful, but WITHOUT
  14 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  15 # FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  16 # details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21
  22
  23 BEGIN {
  24         require 5.8.0;
  25 }
  26
  27 package make::utilities;
  28
  29 use strict;
  30 use warnings FATAL => qw(all);
  31
  32 use Exporter 'import';
  33 use Fcntl;
  34 use File::Path;
  35 use File::Spec::Functions qw(rel2abs);
  36 use Getopt::Long;
  37 use POSIX;
  38
  39 our @EXPORT = qw(module_installed prompt_bool prompt_dir prompt_string make_rpath pkgconfig_get_include_dirs pkgconfig_get_lib_dirs pkgconfig_check_version translate_functions promptstring);
  40
  41 # Parse the output of a *_config program,
  42 # such as pcre_config, take out the -L
  43 # directive and return an rpath for it.
  44
  45 # \e[1;32msrc/Makefile\e[0m
  46
  47 my %already_added = ();
  48 my $if_skip_lines = 0;
  49
  50 sub module_installed($)
  51 {
  52         my $module = shift;
  53         eval("use $module;");
  54         return !$@;
  55 }
  56
  57 sub prompt_bool($$$) {
  58         my ($interactive, $question, $default) = @_;
  59         my $answer = prompt_string($interactive, $question, $default ? 'y' : 'n');
  60         return $answer =~ /y/i;
  61 }
  62
  63 sub prompt_dir($$$) {
  64         my ($interactive, $question, $default) = @_;
  65         my ($answer, $create) = (undef, 'y');
  66         do {
  67                 $answer = rel2abs(prompt_string($interactive, $question, $default));
  68                 $create = prompt_bool($interactive && !-d $answer, "$answer does not exist. Create it?", 'y');
  69                 my $mkpath = eval {
  70                         mkpath($answer, 0, 0750);
  71                         return 1;
  72                 };
  73                 unless (defined $mkpath) {
  74                         print "Error: unable to create $answer!\n\n";
  75                         $create = 0;
  76                 }
  77         } while (!$create);
  78         return $answer;
  79 }
  80
  81 sub prompt_string($$$) {
  82         my ($interactive, $question, $default) = @_;
  83         return $default unless $interactive;
  84         print $question, "\n";
  85         print "[\e[1;32m$default\e[0m] => ";
  86         chomp(my $answer = <STDIN>);
  87         print "\n";
  88         return $answer ? $answer : $default;
  89 }
  90
  91 sub promptstring($$$$$)
  92 {
  93         my ($prompt, $configitem, $default, $package, $commandlineswitch) = @_;
  94         my $var;
  95         if (!$main::interactive)
  96         {
  97                 my $opt_commandlineswitch;
  98                 GetOptions ("$commandlineswitch=s" => \$opt_commandlineswitch);
  99                 if (defined $opt_commandlineswitch)
 100                 {
 101                         print "\e[1;32m$opt_commandlineswitch\e[0m\n";
 102                         $var = $opt_commandlineswitch;
 103                 }
 104                 else
 105                 {
 106                         die "Could not detect $package! Please specify the $prompt via the command line option \e[1;32m--$commandlineswitch=\"/path/to/file\"\e[0m";
 107                 }
 108         }
 109         else
 110         {
 111                 print "\nPlease enter the $prompt?\n";
 112                 print "[\e[1;32m$default\e[0m] -> ";
 113                 chomp($var = <STDIN>);
 114         }
 115         if ($var eq "")
 116         {
 117                 $var = $default;
 118         }
 119         $main::config{$configitem} = $var;
 120 }
 121
 122 sub make_rpath($;$)
 123 {
 124         my ($executable, $module) = @_;
 125         chomp(my $data = `$executable`);
 126         my $output = "";
 127         while ($data =~ /-L(\S+)/)
 128         {
 129                 my $libpath = $1;
 130                 if (!exists $already_added{$libpath})
 131                 {
 132                         print "Adding extra library path to \e[1;32m$module\e[0m ... \e[1;32m$libpath\e[0m\n";
 133                         $already_added{$libpath} = 1;
 134                 }
 135                 $output .= "-Wl,--rpath -Wl,$libpath -L$libpath " unless defined $main::opt_disablerpath;
 136                 $data =~ s/-L(\S+)//;
 137         }
 138         return $output;
 139 }
 140
 141 sub extend_pkg_path()
 142 {
 143         if (!exists $ENV{PKG_CONFIG_PATH})
 144         {
 145                 $ENV{PKG_CONFIG_PATH} = "/usr/lib/pkgconfig:/usr/local/lib/pkgconfig:/usr/local/libdata/pkgconfig:/usr/X11R6/libdata/pkgconfig";
 146         }
 147         else
 148         {
 149                 $ENV{PKG_CONFIG_PATH} .= ":/usr/local/lib/pkgconfig:/usr/local/libdata/pkgconfig:/usr/X11R6/libdata/pkgconfig";
 150         }
 151 }
 152
 153 sub pkgconfig_get_include_dirs($$$;$)
 154 {
 155         my ($packagename, $headername, $defaults, $module) = @_;
 156
 157         extend_pkg_path();
 158
 159         print "Locating include directory for package \e[1;32m$packagename\e[0m for module \e[1;32m$module\e[0m... ";
 160
 161         my $v = `pkg-config --modversion $packagename 2>/dev/null`;
 162         my $ret = `pkg-config --cflags $packagename 2>/dev/null`;
 163         my $foo = "";
 164         if ((!defined $v) || ($v eq ""))
 165         {
 166                 print "\e[31mCould not find $packagename via pkg-config\e[m (\e[1;32mplease install pkg-config\e[m)\n";
 167                 $foo = `locate "$headername" 2>/dev/null | head -n 1`;
 168                 my $find = $foo =~ /(.+)\Q$headername\E/ ? $1 : '';
 169                 chomp($find);
 170                 if ((defined $find) && ($find ne "") && ($find ne $packagename))
 171                 {
 172                         print "(\e[1;32mFound via search\e[0m) ";
 173                         $foo = "-I$1";
 174                 }
 175                 else
 176                 {
 177                         $foo = " ";
 178                         undef $v;
 179                 }
 180                 $ret = "$foo";
 181         }
 182         if (($defaults ne "") && (($ret eq "") || (!defined $ret)))
 183         {
 184                 $ret = "$foo " . $defaults;
 185         }
 186         chomp($ret);
 187         if ((($ret eq " ") || (!defined $ret)) && ((!defined $v) || ($v eq "")))
 188         {
 189                 my $key = "default_includedir_$packagename";
 190                 if (exists $main::config{$key})
 191                 {
 192                         $ret = $main::config{$key};
 193                 }
 194                 else
 195                 {
 196                         $headername =~ s/^\///;
 197                         promptstring("path to the directory containing $headername", $key, "/usr/include",$packagename,"$packagename-includes");
 198                         $packagename =~ tr/a-z/A-Z/;
 199                         if (defined $v)
 200                         {
 201                                 $main::config{$key} = "-I$main::config{$key}" . " $defaults -DVERSION_$packagename=\"$v\"";
 202                         }
 203                         else
 204                         {
 205                                 $main::config{$key} = "-I$main::config{$key}" . " $defaults -DVERSION_$packagename=\"0.0\"";
 206                         }
 207                         $main::config{$key} =~ s/^\s+//g;
 208                         $ret = $main::config{$key};
 209                         return $ret;
 210                 }
 211         }
 212         else
 213         {
 214                 chomp($v);
 215                 my $key = "default_includedir_$packagename";
 216                 $packagename =~ tr/a-z/A-Z/;
 217                 $main::config{$key} = "$ret -DVERSION_$packagename=\"$v\"";
 218                 $main::config{$key} =~ s/^\s+//g;
 219                 $ret = $main::config{$key};
 220                 print "\e[1;32m$ret\e[0m (version $v)\n";
 221         }
 222         $ret =~ s/^\s+//g;
 223         return $ret;
 224 }
 225
 226 sub pkgconfig_check_version($$;$)
 227 {
 228         my ($packagename, $version, $module) = @_;
 229
 230         extend_pkg_path();
 231
 232         print "Checking version of package \e[1;32m$packagename\e[0m is >= \e[1;32m$version\e[0m... ";
 233
 234         my $v = `pkg-config --modversion $packagename 2>/dev/null`;
 235         if (defined $v)
 236         {
 237                 chomp($v);
 238         }
 239         if ((defined $v) && ($v ne ""))
 240         {
 241                 if (!system "pkg-config --atleast-version $version $packagename")
 242                 {
 243                         print "\e[1;32mYes (version $v)\e[0m\n";
 244                         return 1;
 245                 }
 246                 else
 247                 {
 248                         print "\e[1;32mNo (version $v)\e[0m\n";
 249                         return 0;
 250                 }
 251         }
 252         # If we didnt find it, we  cant definitively say its too old.
 253         # Return ok, and let pkgconflibs() or pkgconfincludes() pick up
 254         # the missing library later on.
 255         print "\e[1;32mNo (not found)\e[0m\n";
 256         return 1;
 257 }
 258
 259 sub pkgconfig_get_lib_dirs($$$;$)
 260 {
 261         my ($packagename, $libname, $defaults, $module) = @_;
 262
 263         extend_pkg_path();
 264
 265         print "Locating library directory for package \e[1;32m$packagename\e[0m for module \e[1;32m$module\e[0m... ";
 266
 267         my $v = `pkg-config --modversion $packagename 2>/dev/null`;
 268         my $ret = `pkg-config --libs $packagename 2>/dev/null`;
 269
 270         my $foo = "";
 271         if ((!defined $v) || ($v eq ""))
 272         {
 273                 $foo = `locate "$libname" | head -n 1`;
 274                 $foo =~ /(.+)\Q$libname\E/;
 275                 my $find = $1;
 276                 chomp($find);
 277                 if ((defined $find) && ($find ne "") && ($find ne $packagename))
 278                 {
 279                         print "(\e[1;32mFound via search\e[0m) ";
 280                         $foo = "-L$1";
 281                 }
 282                 else
 283                 {
 284                         $foo = " ";
 285                         undef $v;
 286                 }
 287                 $ret = "$foo";
 288         }
 289
 290         if (($defaults ne "") && (($ret eq "") || (!defined $ret)))
 291         {
 292                 $ret = "$foo " . $defaults;
 293         }
 294         chomp($ret);
 295         if ((($ret eq " ") || (!defined $ret)) && ((!defined $v) || ($v eq "")))
 296         {
 297                 my $key = "default_libdir_$packagename";
 298                 if (exists $main::config{$key})
 299                 {
 300                         $ret = $main::config{$key};
 301                 }
 302                 else
 303                 {
 304                         $libname =~ s/^\///;
 305                         promptstring("path to the directory containing $libname", $key, "/usr/lib",$packagename,"$packagename-libs");
 306                         $main::config{$key} = "-L$main::config{$key}" . " $defaults";
 307                         $main::config{$key} =~ s/^\s+//g;
 308                         $ret = $main::config{$key};
 309                         return $ret;
 310                 }
 311         }
 312         else
 313         {
 314                 chomp($v);
 315                 print "\e[1;32m$ret\e[0m (version $v)\n";
 316                 my $key = "default_libdir_$packagename";
 317                 $main::config{$key} = $ret;
 318                 $main::config{$key} =~ s/^\s+//g;
 319                 $ret =~ s/^\s+//g;
 320         }
 321         $ret =~ s/^\s+//g;
 322         return $ret;
 323 }
 324
 325 # Translate a $CompileFlags etc line and parse out function calls
 326 # to functions within these modules at configure time.
 327 sub translate_functions($$)
 328 {
 329         my ($line,$module) = @_;
 330
 331         eval
 332         {
 333                 $module =~ /modules*\/(.+?)$/;
 334                 $module = $1;
 335
 336                 if ($line =~ /ifuname\(\!"(\w+)"\)/)
 337                 {
 338                         my $uname = $1;
 339                         if ($uname eq $^O)
 340                         {
 341                                 $line = "";
 342                                 return "";
 343                         }
 344
 345                         $line =~ s/ifuname\(\!"(.+?)"\)//;
 346                 }
 347
 348                 if ($line =~ /ifuname\("(\w+)"\)/)
 349                 {
 350                         my $uname = $1;
 351                         if ($uname ne $^O)
 352                         {
 353                                 $line = "";
 354                                 return "";
 355                         }
 356
 357                         $line =~ s/ifuname\("(.+?)"\)//;
 358                 }
 359
 360                 if ($line =~ /if\("(\w+)"\)/)
 361                 {
 362                         if (defined $main::config{$1})
 363                         {
 364                                 if (($main::config{$1} !~ /y/i) and ($main::config{$1} ne "1"))
 365                                 {
 366                                         $line = "";
 367                                         return "";
 368                                 }
 369                         }
 370
 371                         $line =~ s/if\("(.+?)"\)//;
 372                 }
 373                 if ($line =~ /if\(\!"(\w+)"\)/)
 374                 {
 375                         if (!exists $main::config{$1})
 376                         {
 377                                 $line = "";
 378                                 return "";
 379                         }
 380                         else
 381                         {
 382                                 if (defined $1)
 383                                 {
 384                                         if (exists ($main::config{$1}) and (($main::config{$1} =~ /y/i) or ($main::config{$1} eq "1")))
 385                                         {
 386                                                 $line = "";
 387                                                 return "";
 388                                         }
 389                                 }
 390                         }
 391
 392                         $line =~ s/if\(\!"(.+?)"\)//;
 393                 }
 394                 while ($line =~ /exec\("(.+?)"\)/)
 395                 {
 396                         print "Executing program for module \e[1;32m$module\e[0m ... \e[1;32m$1\e[0m\n";
 397                         my $replace = `$1`;
 398                         die $replace if ($replace =~ /Configuration failed/);
 399                         chomp($replace);
 400                         $line =~ s/exec\("(.+?)"\)/$replace/;
 401                 }
 402                 while ($line =~ /execruntime\("(.+?)"\)/)
 403                 {
 404                         $line =~ s/execruntime\("(.+?)"\)/`$1`/;
 405                 }
 406                 while ($line =~ /eval\("(.+?)"\)/)
 407                 {
 408                         print "Evaluating perl code for module \e[1;32m$module\e[0m ... ";
 409                         my $tmpfile;
 410                         do
 411                         {
 412                                 $tmpfile = tmpnam();
 413                         } until sysopen(TF, $tmpfile, O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW, 0700);
 414                         print "(Created and executed \e[1;32m$tmpfile\e[0m)\n";
 415                         print TF $1;
 416                         close TF;
 417                         my $replace = `perl $tmpfile`;
 418                         chomp($replace);
 419                         $line =~ s/eval\("(.+?)"\)/$replace/;
 420                 }
 421                 while ($line =~ /pkgconflibs\("(.+?)","(.+?)","(.+?)"\)/)
 422                 {
 423                         my $replace = pkgconfig_get_lib_dirs($1, $2, $3, $module);
 424                         $line =~ s/pkgconflibs\("(.+?)","(.+?)","(.+?)"\)/$replace/;
 425                 }
 426                 while ($line =~ /pkgconfversion\("(.+?)","(.+?)"\)/)
 427                 {
 428                         if (pkgconfig_check_version($1, $2, $module) != 1)
 429                         {
 430                                 die "Version of package $1 is too old. Please upgrade it to version \e[1;32m$2\e[0m or greater and try again.";
 431                         }
 432                         # This doesnt actually get replaced with anything
 433                         $line =~ s/pkgconfversion\("(.+?)","(.+?)"\)//;
 434                 }
 435                 while ($line =~ /pkgconflibs\("(.+?)","(.+?)",""\)/)
 436                 {
 437                         my $replace = pkgconfig_get_lib_dirs($1, $2, "", $module);
 438                         $line =~ s/pkgconflibs\("(.+?)","(.+?)",""\)/$replace/;
 439                 }
 440                 while ($line =~ /pkgconfincludes\("(.+?)","(.+?)",""\)/)
 441                 {
 442                         my $replace = pkgconfig_get_include_dirs($1, $2, "", $module);
 443                         $line =~ s/pkgconfincludes\("(.+?)","(.+?)",""\)/$replace/;
 444                 }
 445                 while ($line =~ /pkgconfincludes\("(.+?)","(.+?)","(.+?)"\)/)
 446                 {
 447                         my $replace = pkgconfig_get_include_dirs($1, $2, $3, $module);
 448                         $line =~ s/pkgconfincludes\("(.+?)","(.+?)","(.+?)"\)/$replace/;
 449                 }
 450                 while ($line =~ /rpath\("(.+?)"\)/)
 451                 {
 452                         my $replace = make_rpath($1,$module);
 453                         $replace = "" if ($^O =~ /darwin/i);
 454                         $line =~ s/rpath\("(.+?)"\)/$replace/;
 455                 }
 456         };
 457         if ($@)
 458         {
 459                 my $err = $@;
 460                 #$err =~ s/at .+? line \d+.*//g;
 461                 print "\n\nConfiguration failed. The following error occured:\n\n$err\n";
 462                 print "\nMake sure you have pkg-config installed\n";
 463                 print "\nIn the case of gnutls configuration errors on debian,\n";
 464                 print "Ubuntu, etc, you should ensure that you have installed\n";
 465                 print "gnutls-bin as well as gnutls-dev and gnutls.\n";
 466                 exit;
 467         }
 468         else
 469         {
 470                 return $line;
 471         }
 472 }
 473
 474 1;
 475