make/configure.pm

   1 #
   2 # InspIRCd -- Internet Relay Chat Daemon
   3 #
   4 #   Copyright (C) 2012-2014 Peter Powell <petpow@saberuk.com>
   5 #   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
   6 #   Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
   7 #   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
   8 #   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
   9 #
  10 # This file is part of InspIRCd.  InspIRCd is free software: you can
  11 # redistribute it and/or modify it under the terms of the GNU General Public
  12 # License as published by the Free Software Foundation, version 2.
  13 #
  14 # This program is distributed in the hope that it will be useful, but WITHOUT
  15 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  16 # FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  17 # details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22
  23
  24 BEGIN {
  25         require 5.10.0;
  26 }
  27
  28 package make::configure;
  29
  30 use feature ':5.10';
  31 use strict;
  32 use warnings FATAL => qw(all);
  33
  34 use Cwd                   qw(getcwd);
  35 use Exporter              qw(import);
  36 use File::Basename        qw(basename dirname);
  37 use File::Spec::Functions qw(catfile);
  38
  39 use make::common;
  40 use make::console;
  41 use make::utilities;
  42
  43 use constant CONFIGURE_DIRECTORY     => '.configure';
  44 use constant CONFIGURE_CACHE_FILE    => '.configure.cache';
  45 use constant CONFIGURE_CACHE_VERSION => '1';
  46
  47 our @EXPORT = qw(CONFIGURE_CACHE_FILE
  48                  CONFIGURE_CACHE_VERSION
  49                  cmd_clean
  50                  cmd_help
  51                  cmd_update
  52                  run_test
  53                  test_file
  54                  test_header
  55                  read_configure_cache
  56                  write_configure_cache
  57                  get_compiler_info
  58                  find_compiler
  59                  get_property
  60                  parse_templates);
  61
  62 sub __get_socketengines {
  63         my @socketengines;
  64         foreach (<src/socketengines/socketengine_*.cpp>) {
  65                 s/src\/socketengines\/socketengine_(\w+)\.cpp/$1/;
  66                 push @socketengines, $1;
  67         }
  68         return @socketengines;
  69 }
  70
  71 # TODO: when buildtool is done this can be mostly removed with
  72 #       the remainder being merged into parse_templates.
  73 sub __get_template_settings($$$) {
  74
  75         # These are actually hash references
  76         my ($config, $compiler, $version) = @_;
  77
  78         # Start off by populating with the config
  79         my %settings = %$config;
  80
  81         # Compiler information
  82         while (my ($key, $value) = each %{$compiler}) {
  83                 $settings{'COMPILER_' . $key} = $value;
  84         }
  85
  86         # Version information
  87         while (my ($key, $value) = each %{$version}) {
  88                 $settings{'VERSION_' . $key} = $value;
  89         }
  90
  91         # Miscellaneous information
  92         $settings{CONFIGURE_DIRECTORY} = CONFIGURE_DIRECTORY;
  93         $settings{CONFIGURE_CACHE_FILE} = CONFIGURE_CACHE_FILE;
  94         $settings{SYSTEM_NAME} = lc $^O;
  95         chomp($settings{SYSTEM_NAME_VERSION} = `uname -sr 2>/dev/null`);
  96
  97         return %settings;
  98 }
  99
 100 sub __test_compiler($) {
 101         my $compiler = shift;
 102         return 0 unless run_test("`$compiler`", !system "$compiler -v >/dev/null 2>&1");
 103         return 0 unless run_test("`$compiler`", test_file($compiler, 'compiler.cpp', '-fno-rtti'), 'compatible');
 104         return 1;
 105 }
 106
 107 sub cmd_clean {
 108         unlink CONFIGURE_CACHE_FILE;
 109 }
 110
 111 sub cmd_help {
 112         my $PWD = getcwd();
 113         my $SELIST = join ', ', __get_socketengines();
 114         print <<EOH;
 115 Usage: $0 [options]
 116
 117 When no options are specified, configure runs in interactive mode and you must
 118 specify any required values manually. If one or more options are specified,
 119 non-interactive configuration is started and any omitted values are defaulted.
 120
 121 PATH OPTIONS
 122
 123   --system                      Automatically set up the installation paths
 124                                 for system-wide installation.
 125   --prefix=[dir]                The root install directory. If this is set then
 126                                 all subdirectories will be adjusted accordingly.
 127                                 [$PWD/run]
 128   --binary-dir=[dir]            The location where the main server binary is
 129                                 stored.
 130                                 [$PWD/run/bin]
 131   --config-dir=[dir]            The location where the configuration files and
 132                                 SSL certificates are stored.
 133                                 [$PWD/run/conf]
 134   --data-dir=[dir]              The location where the data files, such as the
 135                                 pid file, are stored.
 136                                 [$PWD/run/data]
 137   --log-dir=[dir]               The location where the log files are stored.
 138                                 [$PWD/run/logs]
 139   --manual-dir=[dir]            The location where the manual files are stored.
 140                                 [$PWD/run/manuals]
 141   --module-dir=[dir]            The location where the loadable modules are
 142                                 stored.
 143                                 [$PWD/run/modules]
 144
 145 EXTRA MODULE OPTIONS
 146
 147   --enable-extras=[extras]      Enables a comma separated list of extra modules.
 148   --disable-extras=[extras]     Disables a comma separated list of extra modules.
 149   --list-extras                 Shows the availability status of all extra
 150                                 modules.
 151
 152 MISC OPTIONS
 153
 154   --clean                       Remove the configuration cache file and start
 155                                 the interactive configuration wizard.
 156   --disable-interactive         Disables the interactive configuration wizard.
 157   --distribution-label=[text]   Sets a distribution specific version label in
 158                                 the build configuration.
 159   --gid=[id|name]               Sets the group to run InspIRCd as.
 160   --help                        Show this message and exit.
 161   --socketengine=[name]         Sets the socket engine to be used. Possible
 162                                 values are $SELIST.
 163   --uid=[id|name]               Sets the user to run InspIRCd as.
 164   --update                      Updates the build environment.
 165
 166
 167 FLAGS
 168
 169   CXX=[name]                    Sets the C++ compiler to use when building the
 170                                 server. If not specified then the build system
 171                                 will search for c++, g++, clang++ or icpc.
 172
 173 If you have any problems with configuring InspIRCd then visit our IRC channel
 174 at irc.inspircd.org #InspIRCd for support.
 175
 176 EOH
 177         exit 0;
 178 }
 179
 180 sub cmd_update {
 181         print_error "You have not run $0 before. Please do this before trying to update the generated files." unless -f CONFIGURE_CACHE_FILE;
 182         say 'Updating...';
 183         my %config = read_configure_cache();
 184         my %compiler = get_compiler_info($config{CXX});
 185         my %version = get_version();
 186         parse_templates(\%config, \%compiler, \%version);
 187         say 'Update complete!';
 188         exit 0;
 189 }
 190
 191 sub run_test($$;$) {
 192         my ($what, $result, $adjective) = @_;
 193         $adjective //= 'available';
 194         print_format "Checking whether <|GREEN $what|> is $adjective ... ";
 195         print_format $result ? "<|GREEN yes|>\n" : "<|RED no|>\n";
 196         return $result;
 197 }
 198
 199 sub test_file($$;$) {
 200         my ($compiler, $file, $args) = @_;
 201         my $status = 0;
 202         $args //= '';
 203         $status ||= system "$compiler -o __test_$file make/test/$file $args >/dev/null 2>&1";
 204         $status ||= system "./__test_$file >/dev/null 2>&1";
 205         unlink "./__test_$file";
 206         return !$status;
 207 }
 208
 209 sub test_header($$;$) {
 210         my ($compiler, $header, $args) = @_;
 211         $args //= '';
 212         open(COMPILER, "| $compiler -E - $args >/dev/null 2>&1") or return 0;
 213         print COMPILER "#include <$header>";
 214         close(COMPILER);
 215         return !$?;
 216 }
 217
 218 sub read_configure_cache {
 219         my %config;
 220         open(CACHE, CONFIGURE_CACHE_FILE) or return %config;
 221         while (my $line = <CACHE>) {
 222                 next if $line =~ /^\s*($|\#)/;
 223                 my ($key, $value) = ($line =~ /^(\S+)="(.*)"$/);
 224                 $config{$key} = $value;
 225         }
 226         close(CACHE);
 227         return %config;
 228 }
 229
 230 sub write_configure_cache(%) {
 231         print_format "Writing <|GREEN ${\CONFIGURE_CACHE_FILE}|> ...\n";
 232         my %config = @_;
 233         open(CACHE, '>', CONFIGURE_CACHE_FILE) or print_error "unable to write ${\CONFIGURE_CACHE_FILE}: $!";
 234         while (my ($key, $value) = each %config) {
 235                 $value //= '';
 236                 say CACHE "$key=\"$value\"";
 237         }
 238         close(CACHE);
 239 }
 240
 241 sub get_compiler_info($) {
 242         my $binary = shift;
 243         my $version = `$binary -v 2>&1`;
 244         if ($version =~ /Apple\sLLVM\sversion\s(\d+\.\d+)/i) {
 245                 # Apple version their LLVM releases slightly differently to the mainline LLVM.
 246                 # See https://trac.macports.org/wiki/XcodeVersionInfo for more information.
 247                 return (NAME => 'AppleClang', VERSION => $1);
 248         } elsif ($version =~ /clang\sversion\s(\d+\.\d+)/i) {
 249                 return (NAME => 'Clang', VERSION => $1);
 250         } elsif ($version =~ /gcc\sversion\s(\d+\.\d+)/i) {
 251                 return (NAME => 'GCC', VERSION => $1);
 252         } elsif ($version =~ /(?:icc|icpc)\sversion\s(\d+\.\d+).\d+\s\(gcc\sversion\s(\d+\.\d+).\d+/i) {
 253                 return (NAME => 'ICC', VERSION => $1);
 254         }
 255         return (NAME => $binary, VERSION => '0.0');
 256 }
 257
 258 sub find_compiler {
 259         my @compilers = qw(c++ g++ clang++ icpc);
 260         foreach my $compiler (shift // @compilers) {
 261                 return $compiler if __test_compiler $compiler;
 262                 return "xcrun $compiler" if $^O eq 'darwin' && __test_compiler "xcrun $compiler";
 263         }
 264 }
 265
 266 sub get_property($$;$)
 267 {
 268         my ($file, $property, $default) = @_;
 269         open(MODULE, $file) or return $default;
 270         while (<MODULE>) {
 271                 if ($_ =~ /^\/\* \$(\S+): (.+) \*\/$/) {
 272                         next unless $1 eq $property;
 273                         close(MODULE);
 274                         return translate_functions($2, $file);
 275                 }
 276         }
 277         close(MODULE);
 278         return $default // '';
 279 }
 280
 281 sub parse_templates($$$) {
 282
 283         # These are actually hash references
 284         my ($config, $compiler, $version) = @_;
 285
 286         # Collect settings to be used when generating files
 287         my %settings = __get_template_settings($config, $compiler, $version);
 288
 289         # Iterate through files in make/template.
 290         foreach (<make/template/*>) {
 291                 print_format "Parsing <|GREEN $_|> ...\n";
 292                 open(TEMPLATE, $_) or print_error "unable to read $_: $!";
 293                 my (@lines, $mode, @platforms, %targets);
 294
 295                 # First pass: parse template variables and directives.
 296                 while (my $line = <TEMPLATE>) {
 297                         chomp $line;
 298
 299                         # Does this line match a variable?
 300                         while ($line =~ /(@(\w+?)@)/) {
 301                                 my ($variable, $name) = ($1, $2);
 302                                 if (defined $settings{$name}) {
 303                                         $line =~ s/\Q$variable\E/$settings{$name}/;
 304                                 } else {
 305                                         print_warning "unknown template variable '$name' in $_!";
 306                                         last;
 307                                 }
 308                         }
 309
 310                         # Does this line match a directive?
 311                         if ($line =~ /^\s*%(\w+)\s+(.+)$/) {
 312                                 if ($1 eq 'define') {
 313                                         if ($settings{$2}) {
 314                                                 push @lines, "#define $2";
 315                                         } else {
 316                                                 push @lines, "#undef $2";
 317                                         }
 318                                 } elsif ($1 eq 'mode') {
 319                                         $mode = oct $2;
 320                                 } elsif ($1 eq 'platform') {
 321                                         push @platforms, $2;
 322                                 } elsif ($1 eq 'target') {
 323                                         if ($2 =~ /(\w+)\s(.+)/) {
 324                                                 $targets{$1} = $2;
 325                                         } else {
 326                                                 $targets{DEFAULT} = $2;
 327                                         }
 328                                 } else {
 329                                         print_warning "unknown template command '$1' in $_!";
 330                                         push @lines, $line;
 331                                 }
 332                                 next;
 333                         }
 334                         push @lines, $line;
 335                 }
 336                 close(TEMPLATE);
 337
 338                 # Only proceed if this file should be templated on this platform.
 339                 if ($#platforms < 0 || grep { $_ eq $^O } @platforms) {
 340
 341                         # Add a default target if the template has not defined one.
 342                         unless (scalar keys %targets) {
 343                                 $targets{DEFAULT} = catfile(CONFIGURE_DIRECTORY, basename $_);
 344                         }
 345
 346                         # Second pass: parse makefile junk and write files.
 347                         while (my ($name, $target) = each %targets) {
 348
 349                                 # TODO: when buildtool is done this mess can be removed completely.
 350                                 my @final_lines;
 351                                 foreach my $line (@lines) {
 352
 353                                         # Are we parsing a makefile and does this line match a statement?
 354                                         if ($name =~ /(?:BSD|GNU)_MAKE/ && $line =~ /^\s*\@(\w+)(?:\s+(.+))?$/) {
 355                                                 my @tokens = split /\s/, $2 if defined $2;
 356                                                 if ($1 eq 'DO_EXPORT' && defined $2) {
 357                                                         if ($name eq 'BSD_MAKE') {
 358                                                                 foreach my $variable (@tokens) {
 359                                                                         push @final_lines, "MAKEENV += $variable='\${$variable}'";
 360                                                                 }
 361                                                         } elsif ($name eq 'GNU_MAKE') {
 362                                                                 push @final_lines, "export $2";
 363                                                         }
 364                                                 } elsif ($1 eq 'ELSE') {
 365                                                         if ($name eq 'BSD_MAKE') {
 366                                                                 push @final_lines, ".else";
 367                                                         } elsif ($name eq 'GNU_MAKE') {
 368                                                                 push @final_lines, "else";
 369                                                         }
 370                                                 } elsif ($1 eq 'ENDIF') {
 371                                                         if ($name eq 'BSD_MAKE') {
 372                                                                 push @final_lines, ".endif";
 373                                                         } elsif ($name eq 'GNU_MAKE') {
 374                                                                 push @final_lines, "endif";
 375                                                         }
 376                                                 } elsif ($1 eq 'ELSIFEQ' && defined $2) {
 377                                                         if ($name eq 'BSD_MAKE') {
 378                                                                 push @final_lines, ".elif $tokens[0] == $tokens[1]";
 379                                                         } elsif ($name eq 'GNU_MAKE') {
 380                                                                 push @final_lines, "else ifeq ($tokens[0], $tokens[1])";
 381                                                         }
 382                                                 } elsif ($1 eq 'IFDEF' && defined $2) {
 383                                                         if ($name eq 'BSD_MAKE') {
 384                                                                 push @final_lines, ".if defined($2)";
 385                                                         } elsif ($name eq 'GNU_MAKE') {
 386                                                                 push @final_lines, "ifdef $2";
 387                                                         }
 388                                                 } elsif ($1 eq 'IFEQ' && defined $2) {
 389                                                         if ($name eq 'BSD_MAKE') {
 390                                                                 push @final_lines, ".if $tokens[0] == $tokens[1]";
 391                                                         } elsif ($name eq 'GNU_MAKE') {
 392                                                                 push @final_lines, "ifeq ($tokens[0],$tokens[1])";
 393                                                         }
 394                                                 } elsif ($1 eq 'IFNEQ' && defined $2) {
 395                                                         if ($name eq 'BSD_MAKE') {
 396                                                                 push @final_lines, ".if $tokens[0] != $tokens[1]";
 397                                                         } elsif ($name eq 'GNU_MAKE') {
 398                                                                 push @final_lines, "ifneq ($tokens[0],$tokens[1])";
 399                                                         }
 400                                                 } elsif ($1 eq 'IFNDEF' && defined $2) {
 401                                                         if ($name eq 'BSD_MAKE') {
 402                                                                 push @final_lines, ".if !defined($2)";
 403                                                         } elsif ($name eq 'GNU_MAKE') {
 404                                                                 push @final_lines, "ifndef $2";
 405                                                         }
 406                                                 } elsif ($1 eq 'TARGET' && defined $2) {
 407                                                         if ($tokens[0] eq $name) {
 408                                                                 push @final_lines, substr($2, length($tokens[0]) + 1);
 409                                                         }
 410                                                 } elsif ($1 !~ /[A-Z]/) {
 411                                                         # HACK: silently ignore if lower case as these are probably make commands.
 412                                                         push @final_lines, $line;
 413                                                 } else {
 414                                                         print_warning "unknown template command '$1' in $_!";
 415                                                         push @final_lines, $line;
 416                                                 }
 417                                                 next;
 418                                         }
 419
 420                                         push @final_lines, $line;
 421                                 }
 422
 423                                 # Create the directory if it doesn't already exist.
 424                                 my $directory = dirname $target;
 425                                 unless (-e $directory) {
 426                                         print_format "Creating <|GREEN $directory|> ...\n";
 427                                         create_directory $directory, 0750 or print_error "unable to create $directory: $!";
 428                                 };
 429
 430                                 # Write the template file.
 431                                 print_format "Writing <|GREEN $target|> ...\n";
 432                                 open(TARGET, '>', $target) or print_error "unable to write $target: $!";
 433                                 foreach (@final_lines) {
 434                                         say TARGET $_;
 435                                 }
 436                                 close(TARGET);
 437
 438                                 # Set file permissions.
 439                                 if (defined $mode) {
 440                                         chmod $mode, $target;
 441                                 }
 442                         }
 443                 }
 444         }
 445 }
 446
 447 1;