/usr/bin/makepp is in makepp 2.0.98.5-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 | #!/usr/bin/perl -w
#
# Makepp version 2.0.98.5.
# $Id: makepp,v 1.223 2013/04/22 07:00:37 pfeiffer Exp $
# See /usr/share/doc/makepp/index.html for user documentation.
#
package Mpp;
use 5.008;
use strict;
use Config;
our $datadir;
BEGIN {
$datadir = '/usr/share/makepp'; unshift @INC, $datadir;
}
our $progname;
use Mpp::Text;
$Mpp::Text::pod = 'makepp_command';
BEGIN { *MAKEPP = $Mpp::Text::N[1] } # Differentiate from makeppreplay
use POSIX ();
use Mpp;
our $error_found;
our $log_level;
use Mpp::File;
use Mpp::FileOpt;
use Mpp::Makefile;
use Mpp::Rule;
use Mpp::BuildCheck::exact_match;
use Mpp::Signature::md5;
use Mpp::Event qw(when_done wait_for read_wait);
our $original_cwd = $CWD_INFO; # Remember the directory we started from.
delete $ENV{ROOT}; # This is our builtin variable.
our $MAKEFLAGS = delete $ENV{MAKEFLAGS};
our $MAKEPPFLAGS = delete $ENV{MAKEPPFLAGS};
our %global_ENV = %ENV; # Make a copy of the environment, because
# we're going to change the environment a lot.
%ENV = %global_ENV; # Some (only Solaris?) versions hang when changing $0 before %ENV
our( $assume_unchanged_dir_flag, $dont_build_dir_flag, $dont_read_dir_flag,
$sandbox_enabled_flag, $in_sandbox_dir_flag, $sandbox_warn_flag, $virtual_sandbox_flag );
# This is set if we set ASSUME_UNCHANGED /
# DONT_BUILD on any directory. Optimizations
# can be made if they aren't set.
our $dry_run; # Display commands but don't actually
# execute them.
our $n_phony_messages = 0; # Number of times we've had to warn about
# phony targets.
#
# Default settings for various command line options:
#
our $environment_override = 0; # Variables in environment do not override
# variables in the makefile by default.
our $implicitly_load_makefiles = 1; # Load a makefile from every directory
# that contains a dependency or is searched
# by a wildcard.
our $implicit_load_makeppfile_only = 0;
# Never implicitly load makefile and Makefile.
our $force_rescan = 0; # Don't use cached scanner results
our $final_rule_only = 0; # Unconditionally run only the top-level rules
our $nocache_scaninfo = 0; # Don't save scanner results
our $rm_stale_files = 0; # Ignore stale files, removing them if
# necessary, instead of treating them as
# source files.
our $no_path_executable_dependencies = 0;
# Don't add implicit dependencies on executables
# picked up from the command search path.
our @makepp_include_path = file_info $datadir, $original_cwd;
# The default directories to search for
# include files supplied with makepp.
our $remake_makefiles = 1; # Default to making the makefiles automatically.
our $gullible = 0; # Trust actions not to touch non-targets
our $stop_on_race = 0; # Stop if a race is detected.
our $last_chance_rules; # Flag allowing target pattern only rules for gmake compatibility.
# my $handle = build($objinfo);
# Starts building the specified object. When build() returns, the object
# may not have been built yet; build() returns a handle (see Mpp/Event.pm for
# details) which you can wait on if you want to wait until the build is
# actually done. The usual idiom is
# wait_for build($objinfo);
# If you do this, of course, you make it harder for makepp to build targets in
# parallel because the makepp process will not spawn any other build requests
# until this one is done.
# When any targets are built, the global variable $n_files_changed is
# updated.
sub build {
exists $_[0]{BUILD_HANDLE} and return $_[0]{BUILD_HANDLE};
# Don't start a rebuild if we're already
# trying to build it, or if we've tried
# before.
return if $error_found; # If we're quitting because of an error, don't
# start any new builds (but still propagate
# errors from existing builds).
#
# Find a rule for this object.
#
my $oinfo = $_[0]; # Name the arguments.
if( &Mpp::File::dont_read ) {
print_error "Not building inexistent `" . &absolute_filename . "' because it's marked for dont-read";
return 1;
}
if( &Mpp::File::dont_build ) {
if( exists $_[0]{xPHONY} || &file_exists ) {
Mpp::log BUILD_NOT => $oinfo
if $log_level;
} elsif( &Mpp::File::dont_build == 2 ) { # Outside of ROOT
print_error "Not building inexistent `" . &absolute_filename . "' because it's marked for dont-build";
return 1;
} else {
warn "Not building inexistent `" . &absolute_filename . "' because it's marked for dont-build\n";
}
return undef $_[0]{BUILD_HANDLE};
}
Mpp::log TRY => $oinfo
if $log_level;
# NOTE: We can't unlink the target just yet (even if it's from a repository),
# because then we couldn't use its cached scanner info. Instead, that
# happens just before (and only if) it's built.
my $rule = Mpp::File::get_rule( $oinfo ) || # Do we already have a rule for it?
#
# Make up a dummy rule if there is no rule. This makes it much easier to
# handle the case where there is a target with no action but some
# dependencies, like this:
#
# all: my_program my_other_program
#
# This is quite common in makefiles. Another more sinister idiom is like
# this:
#
# y.tab.c: y.tab.h
# y.tab.h: parse.y
# yacc -d $<
#
# This despicable idiom is the only way to tell the traditional make that the
# yacc command produces both output files. Not only is this ugly, but if the
# rule containing the action looks up-to-date but the side-effect is not, then
# the side-effect doesn't get updated. This isn't easy to fix, because by the
# time we build the side effect file, the action rule could have already been
# checked.
#
new Mpp::DefaultRule($oinfo);
# By the time we're done getting the rule, the target might have already
# been built, so just return its handle in that case. Otherwise we'll try
# to build it a second time after its rule has been nuked, and that won't
# work.
exists $oinfo->{BUILD_HANDLE} and return $oinfo->{BUILD_HANDLE};
# If we find that the rule for this target is in the middle of being
# processed, then just return as if the file were already built and hope
# for the best. (This is currently the best we can do with circular
# dependencies.)
return if exists $rule->{xSCANNING};
# If the file still looks stale (now that we've tried to load its rule), and
# we're not treating stale files as source files, then we need to error out
# here, because something specifically requested a stale file.
if( $rm_stale_files && &Mpp::File::is_stale ) {
print_error 'Not building ', $oinfo, " because it's a stale generated file";
&Mpp::File::unlink;
++$Mpp::failed_count; # Wouldn't get counted, since there's no rule
return 1;
}
#
# If a makefile contains $(MAKE), then we turn off implicit loading of other
# makefiles, assuming that the makefile is constructed to load them manually.
# This is a bit tricky, since the implicit loading flag must be passed in a
# global variable. This local modification will not apply, however, to the
# routines activated by when_done.
#
local $implicitly_load_makefiles if $implicitly_load_makefiles &&
$rule->{MAKEFILE} && exists $rule->{MAKEFILE}{xRECURSIVE_MAKE};
undef $oinfo->{BUILD_HANDLE}; # Indicate that we're trying to build.
# This will be replaced later by a real
# build handle. This must be done after
# get_rule because we may attempt to load a
# makefile in get_rule, and we don't want
# to print out a warning message about
# encountering the rule after we already tried
# to build the file.
local $rule->{xSCANNING}; # Ditto for other targets of this rule that
# we might not know about yet.
Mpp::log USE => $rule
if $log_level;
# In --final-rule-only mode, ignore the dependencies and implicit targets
# of the rule unless the target is phony.
my $dont_scan = $final_rule_only && !UNIVERSAL::isa( $rule, 'Mpp::DefaultRule' ) &&
!exists $oinfo->{xPHONY};
warn 'Ignoring dependencies of ', &absolute_filename,
" because --final-rule-only is specified\n"
if $dont_scan;
my( $all_targets, $all_dependencies, $command_string, $env ) =
$rule->find_all_targets_dependencies( $oinfo, $dont_scan );
# Find out everything that's needed for this
# command, and everything that it changes.
Mpp::log DEPEND => $all_targets, $all_dependencies
if $log_level;
#
# Build each of the dependencies:
#
my @build_handles;
if( exists $rule->{SCAN_FAILED} ) {
# If we couldn't even figure out what the dependencies are, then
# propagate error status instead of running the rule. But if -k is
# specified, then build the dependencies that we already know about.
die unless $rule->{SCAN_FAILED};
push @build_handles, $rule->{SCAN_FAILED};
my $reason = '';
if( UNIVERSAL::isa $rule->{SCAN_FAILED}, 'Mpp::File' ) {
my $finfo = $rule->{SCAN_FAILED};
my( $handle, $next );
while( $handle = $finfo->{BUILD_HANDLE} and
exists $handle->{STATUS} and
$next = $handle->{STATUS} and
UNIVERSAL::isa $next, 'Mpp::File'
) {
$finfo = $next;
}
$reason = ', because ' . absolute_filename( $finfo ) . ' failed to build';
}
print_error 'Not building ' . &absolute_filename .
' because the dependencies could not be computed' . $reason;
}
my $handle;
if( @$all_dependencies and $Mpp::keep_going || ! exists $rule->{SCAN_FAILED} ) {
local $Mpp::indent_level = $Mpp::indent_level + 2;
# Temporarily change the indentation level
# when building dependencies.
foreach my $dep (@$all_dependencies) {
next if exists $dep->{BUILD_HANDLE} && !defined $dep->{BUILD_HANDLE};
# Don't wait for what's already been done.
$handle = when_done build( $dep ), $Mpp::Text::N[0], ERROR =>
$rm_stale_files ?
sub {
if( grep !(exists $_->{xPHONY} || file_exists $_), @$all_dependencies ) {
for my $finfo ( @$all_targets ) { # Not all deps exist: target is now stale.
Mpp::log DEL_STALE => $finfo
if $log_level;
Mpp::File::unlink $finfo;
CORE::unlink Mpp::File::build_info_fname $finfo;
}
}
$dep;
} :
$dep;
$handle and push @build_handles, $handle;
# Don't bother saving it if it's blank.
}
}
$handle = when_done @build_handles, \&build_dependencies_done,
[$oinfo, $all_targets, $all_dependencies, $command_string, $rule, $env, $dont_scan]
and exists $handle->{STATUS} && !$handle->{STATUS} and
undef $handle; # If the build operation already succeeded,
# don't keep the handle around.
foreach my $target (@$all_targets) { # Tag all targets with the handle
$target->{BUILD_HANDLE} = $handle; # that builds them.
}
#
# If we're not doing a parallel make, wait for the above to finish, because
# it's very confusing if makepp gets ahead of the shell commands.
#
$Mpp::parallel_make or
wait_for $oinfo->{BUILD_HANDLE};
$oinfo->{BUILD_HANDLE};
}
#
# This subroutine is called when all the dependencies for a given target
# are finished building. We make sure the target is up to date, or if it
# isn't, we set off the build.
# Arguments:
# a) A list of all the targets.
# b) A list of all the dependencies, in sorted order.
# c) The command string to execute.
# d) The rule object to execute.
#
# Note that indentation level in the log file is handled automatically by
# the when_done mechanism.
#
sub build_dependencies_done {
my( $oinfo, $all_targets, $all_dependencies, $command_string, $rule, $env, $dont_scan ) = @_;
#
# This routine is only called if no errors were encountered in building the
# dependencies.
#
return if $error_found; # If we're quitting because of an error,
# don't start any new builds. This can happen
# if we're doing a parallel build and we got
# an error in a different, unrelated target.
for my $dep ( @$all_dependencies ) {
Mpp::File::check_for_change $dep; # Restat each dependency. This will slow down
# the build, but it's important for accuracy,
# because if a file has been edited or if
# a command altered a file without specifying
# it as a target, we won't know about it
# otherwise, and thus the build info that
# we store will be wrong. (There's still a
# time window where this can occur, but since
# we restat just before we execute the
# commands, it's much narrower.)
warn 'Target ', &absolute_filename, ' depends on temporary file ',
absolute_filename( $dep ), "\n"
if exists $dep->{xTEMP};
}
#
# Now check all the signatures of each target to see if it is up
# to date.
#
my $is_recursive_make = defined $Mpp::Recursive::command && $command_string =~ /\brecursive_makepp\b/;
# Note that the above will catch invocations
# of the recursive_makepp program, and also
# invocations of makepp when
# --traditional-recursive-make is in effect.
my $rebuild_needed; # Assume we don't need to rebuild.
my $dont_build; # Assume no files marked with --dont-build.
my $out_of_sandbox; # Assume no files marked with --out-of-sandbox.
my @targets_to_get_from_repository; # If we have to get any files from a
# repository, this is where we store them.
my @targets_to_get_from_build_cache; # Targets to get from a build cache.
my $build_cwd = $rule->build_cwd;
my $build_check_method = $rule->build_check_method;
my $sig_method = $rule->signature_method; # Get which signature checking
# algorithm we want to use.
if( $is_recursive_make ) {
$rebuild_needed = 1; # Always reexecute this command.
Mpp::log BUILD_RECURSIVE => $all_targets
if $log_level;
} elsif( $dont_scan ) {
$rebuild_needed = 1; # Always reexecute this command.
Mpp::log BUILD_FINAL => $all_targets
if $log_level;
} else {
target_loop:
foreach my $target (@$all_targets) {
last if $rebuild_needed && $dont_build;
if( Mpp::File::dont_build $target ) {
$dont_build = $target; # Remember not to clobber dont-build targets
next target_loop; # Skip to next target now.
}
unless( Mpp::File::in_sandbox $target ) {
$out_of_sandbox = $target;
$dont_build = $target unless $sandbox_warn_flag;
# Remember not to overstep sandbox
}
next target_loop if $rebuild_needed
or exists $target->{xTEMP};
# Temporary targets don't have to be up-to-date
if( exists $target->{xPHONY} ) { # If this is a phony target, then we always rebuild.
$rebuild_needed = 1;
Mpp::log BUILD_PHONY => $target
if $log_level;
next target_loop; # Keep checking for dont_build.
}
#
# Sometimes when we're using repositories, we may need to execute a rule
# but the output directory does not exist yet. If the output directory
# does not exist, but it does exist in a repository, then go ahead and
# make it. However, if the output directory does not exist in any
# repository, then don't make it, because it's possible that the
# command or the targets are erroneous, and we don't want to scatter
# junk directories around.
#
Mpp::File::mkdir $target->{'..'} # Make it with parents.
if exists $target->{'..'}{xIN_REPOSITORY} && !file_exists $target->{'..'};
if( $build_check_method->build_check( $target, $all_dependencies,
$command_string, $build_cwd,
$sig_method, $env )) { # Need to rebuild?
if( exists $target->{ALTERNATE_VERSIONS} ) { # Possibly copy from repository?
my $is_src_file = UNIVERSAL::isa $rule, 'Mpp::DefaultRule';
for( @{$target->{ALTERNATE_VERSIONS}} ) {
if( $rm_stale_files && $is_src_file && Mpp::File::was_built_by_makepp $_ ) {
Mpp::log REP_SKIP => $_
if $log_level;
next;
}
Mpp::log REP_CHECK => $_
if $log_level;
if( $is_src_file ||
!$build_check_method->build_check_from_build_info( $_, $all_dependencies, $command_string, $build_cwd, $sig_method, $env )) {
push @targets_to_get_from_repository, $target, $_;
# Remember to copy this from repository.
next target_loop; # Move on to next target.
}
}
}
if( defined $Mpp::BuildCache::used and my $build_cache = !$Mpp::BuildCache::write_only && $rule->build_cache ) {
# Do we have a build cache we can look in?
my $bc_key = $build_check_method->
build_cache_key( $target, $all_dependencies, $command_string,
$build_cwd, $sig_method, $env );
if( $bc_key ) { # Got a valid key?
my $bc_entry = $build_cache->lookup_file($bc_key);
if( $bc_entry ) { # Got a candidate entry in cache?
Mpp::log BC_FOUND => $target, $bc_key
if $log_level;
push @targets_to_get_from_build_cache, $bc_entry, $target;
next target_loop; # Move on to next target.
} else {
Mpp::log BC_NONE => $target, $bc_key
if $log_level;
}
} else {
Mpp::log BC_NO_KEY => $target
if $log_level;
}
}
$rebuild_needed = 1; # We'll need to run the command.
next target_loop; # Keep checking for dont_build.
}
}
}
$rebuild_needed ||= Mpp::BuildCache::get( $rule, \@targets_to_get_from_build_cache )
if @targets_to_get_from_build_cache;
# At this point, it appears that we won't have to run the rule.
# However, we could have a problem when we attempt to import from
# the cache, and because there could be concurrent processes operating
# on the build cache, we can't predict ahead of time whether such a
# problem will occur. The solution is to attempt the import first,
# and if it fails then fall back to rebuilding.
if( $rebuild_needed ) {
if( $dont_build ) {
# NOTE: This can trip even if the target(s) that we need are up to date
# if some other target *not* marked for dont-build isn't up to date.
# This usually isn't a problem in practice, and it appears nontrivial
# to fix.
print_error 'Not building ' . absolute_filename( $oinfo ) .
' because ' . absolute_filename( $dont_build ) .
' (a target of its rule) was marked for dont-build or out-of-sandbox';
return 1;
}
warn 'Building ', absolute_filename( $out_of_sandbox ), ", which is outside the sandbox\n"
if $out_of_sandbox;
# Do we actually need to rebuild something?
if( $is_recursive_make ) { # If this is a recursive make invocation,
# we'll have to reexecute a build
# command for it, so don't inhibit that.
foreach my $target (@$all_targets) {
delete $target->{BUILD_HANDLE};
}
}
unless( $is_recursive_make || $dry_run ) {
# For the targets that are about to be built, flush out any potentially
# stale stuff (repository links and build info) from the filesystem.
foreach my $tinfo (@$all_targets) {
++$tinfo->{BUILDING} if $Mpp::virtual_sandbox_flag;
if( grep $_, Mpp::File::build_info_string $tinfo, qw'FROM_REPOSITORY LINKED_TO_CACHE' or
!exists $tinfo->{xPHONY} && Mpp::File::check_for_change( $tinfo ), exists $tinfo->{xEXISTS} &&
(my $nw = !Mpp::File::is_writable_owner $tinfo) ) { # Compiler can't write?
Mpp::log REMOVE => $tinfo, $nw ? 'not writable' : 'repository or build cache import'
if $log_level;
Mpp::File::unlink $tinfo; # If it's from a repository, get rid of it.
# It might be a bogus file from the past.
# If it's from a build cache, delete it so
# we don't corrupt the file in the build
# cache.
} elsif( exists $tinfo->{BUILD_INFO}{SYMLINK} ) {
$tinfo->{TEMP_BUILD_INFO} = delete $tinfo->{BUILD_INFO};
next;
} elsif( exists $tinfo->{TEMP_BUILD_INFO} ) {
next;
}
Mpp::File::clear_build_info $tinfo;
}
}
$Mpp::critical_sections++;
# TBD: It would be better to mark all the targets as invalid first,
# and then restore them when the command succeeded (and ideally restore
# the ones that weren't touched if it fails). That way, we won't get
# confused if makepp stops very suddenly (e.g. kernel panic), even if
# none of the targets' timestamps changed.
my $execute_handle = $dry_run && !$is_recursive_make ?
$rule->print_command( $command_string ) :
$rule->execute( $command_string, $all_targets, $all_dependencies );
# Start executing the command, or just print it
# if -n is enabled (unless it's recursive make).
shift;
my $handle = when_done $execute_handle, \&build_target_done, \@_,
ERROR => sub {
$error_found = $_[0]
if $_[0] =~ /^signal (?:$Mpp::int_signo|$Mpp::quit_signo)$/os;
$error_found ||= $_[0] # Remember the error status. This will cause us
unless $Mpp::keep_going; # to stop compilation as soon as possible.
$Mpp::failed_count += @$all_targets;
print_error "Failed to build target", (@$all_targets>1 ? 's' : ''),
map( ' `'.absolute_filename( $_ )."'", @$all_targets ), " [$_[0]]";
Mpp::log RULE_FAILED => $rule
if $log_level; # Sometimes it's hard to tell where the problem
# was if -k was specified unless we mark it
# in the log file.
# TBD: We don't need to invalidate the build info of targets that we know
# weren't touched by the command. We can leverage the code that detects
# when we need to retouch a file (also TBD) to accomplish this.
foreach my $tinfo (@$all_targets) {
next if exists $tinfo->{xPHONY}; # Skip phony targets.
may_have_changed $tinfo; # Invalidate cached info.
# We don't really need to blow away BUILD_INFO,
# because we called clear_build_info earlier,
# but that doesn't slow things down too much.
my $deref = dereference $tinfo;
may_have_changed $deref if $tinfo != $deref;
# Since we don't know whether the command
# modified the link or its referent or both,
# need to invalidate both.
unless( $is_recursive_make || $dry_run || ref($rule) eq 'Mpp::DefaultRule' ) {
# Never store build information on recursive
# makes. They always need to be rerun every
# time we run through the makefile.
Mpp::File::set_build_info_string $tinfo,
BUILD_SIGNATURE => 'FAILED',
COMMAND => "|FAILED|$command_string",
CWD => relative_filename $rule->{MAKEFILE}{CWD}, $tinfo->{'..'};
}
}
&Mpp::File::update_build_infos # Flush the build info to disk.
unless $dry_run;
$Mpp::critical_sections--;
propagate_pending_signals;
return $_[0]; # Propagate the status.
};
return $handle; # Not finished building until the rule has
# finished executing.
}
#
# We didn't actually need to rebuild anything. We may have to copy or link
# a target from the repository, however.
#
Mpp::Repository::get( splice @targets_to_get_from_repository, 0, 2 )
and return 1 # failed
while @targets_to_get_from_repository; # Move or link the targets.
Mpp::log UP_TO_DATE => $all_targets
if $log_level;
# We need to cache the scanner info even if the action wasn't executed,
# because the existing build info may have been generated with
# --nocache_scaninfo. Since Mpp::File::set_build_info is intelligent, this
# shouldn't slow things down noticeably if the scan info didn't change.
if( UNIVERSAL::isa $build_check_method, 'Mpp::BuildCheck::exact_match' ) {
$rule->cache_scaninfo([
grep {
!exists $_->{xPHONY} &&
(Mpp::File::build_info_string $_, 'CWD' or '') eq relative_filename $build_cwd, $_->{'..'}
} @$all_targets
]);
}
foreach my $tinfo (@$all_targets) {
Mpp::File::set_rule $tinfo, undef; # Discard the rule to save memory.
}
undef; # Success, and nothing to wait for.
}
#
# This subroutine is called when a rule's command has finished executing.
# We don't reach this subroutine if an error occurred while the rule was
# executing.
#
# Arguments:
# a) A list of all the targets.
# b) A list of all the dependencies, in sorted order.
# c) The indentation level in the log file.
# d) The command string to execute.
# e) The rule object to execute.
#
# Note that indentation level in the log file is handled automatically by
# the when_done mechanism.
#
#
sub build_target_done {
my( $all_targets, $all_dependencies, $command_string, $rule, $env ) = @_;
my $implicit_phony = 0;
# TBD: We should probably do an eval on a per-target basis, because it's nice
# to clean up after the rest of the targets after one fails to have its build
# info straightened out.
eval {
my $sig_method = $rule->signature_method; # Get which signature checking
# algorithm we want to use.
my $build_cwd = $rule->build_cwd;
my $is_recursive_make = defined $Mpp::Recursive::command && $command_string =~ /\brecursive_makepp\b/;
my $build_cache = defined $Mpp::BuildCache::used && $rule->build_cache;
my $build_check_method = $rule->build_check_method;
Mpp::log SUCCESS => $rule, $all_targets
if $log_level;
#
# Update the stored build information for each target:
#
my @built_targets;
my $include = $rule->{INCLUDE};
my %uniq;
if( $include ) {
if( $rule->{INCLUDE_MD5} ? $rule->{INCLUDE_MD5} ne Mpp::Signature::md5::signature( $include ) : 1 ) {
# If we have a sig, only reread if it changed.
$uniq{sprintf '%x', $_} = $_ for @$all_dependencies;
for my $tinfo (@$all_targets) {
delete $uniq{sprintf '%x', $_} for $rule->expand_additional_deps( $tinfo );
# These may now be outdated.
}
Mpp::log LOAD_INCL => $include, $rule
if $Mpp::log_level;
local $Mpp::Makefile::rule_include = 2;
$rule->{MAKEFILE}->read_makefile( $include );
} else {
undef $include; # No change, forget about it for this time.
}
}
foreach my $tinfo (@$all_targets) {
next if exists $tinfo->{xPHONY}; # Skip phony targets.
if( $include ) { # Do this for all targets, as we don't know which one was in the :include .d
$uniq{sprintf '%x', $_} = $_ for $rule->expand_additional_deps( $tinfo );
}
may_have_changed $tinfo; # Invalidate cached info.
# We don't really need to blow away BUILD_INFO,
# because we called clear_build_info earlier,
# but that doesn't slow things down too much.
my $deref = dereference $tinfo;
may_have_changed $deref if $tinfo != $deref;
# Since we don't know whether the command modified the link
# or its referent or both, need to invalidate both.
push @built_targets, $tinfo;
}
$all_dependencies = $rule->sorted_dependencies( values %uniq )
if keys %uniq;
$rule->cache_scaninfo(\@built_targets);
my $sorted_dep_names = join "\cA", map relative_filename( $_, $build_cwd ), @$all_dependencies;
my $sorted_dep_sigs = join "\cA", map { $sig_method->signature($_) || '' } @$all_dependencies;
foreach my $tinfo (@built_targets) {
unless( $is_recursive_make || $dry_run ) {
# Never store build information on recursive
# makes. They always need to be rerun every
# time we run through the makefile.
if( my $tsig = $sig_method->signature( $tinfo )) { # File actually exists now:
# Store the information on how we built it.
my @extra;
if( %$env ) {
my @deps = sort keys %$env;
@extra = (
ENV_DEPS => join( "\cA", @deps ), ENV_VALS => join( "\cA", @{$env}{@deps} )
);
}
if( $tinfo->{LINK_DEREF} && $tinfo->{LSTAT}[Mpp::File::STAT_NLINK] == 1 ) {
# Assume nlink > 1 to mean action only created
# a link to an already existing symlink.
Mpp::log SYMLINK => $tinfo
if $log_level;
my $link = readlink absolute_filename $tinfo;
my $linkee = file_info $link, $tinfo->{'..'};
$tinfo->{LINK_DEREF} ||= $linkee;
if( grep $_ == $linkee, @$all_dependencies, @$all_targets ) {
# Don't use dereference, as that follows a link to a link.
push @extra, 'SYMLINK', $link;
} else {
warn '`' . absolute_filename_nolink( $tinfo ) . "' is a symbolic link to `$link',
which is neither a dependency of rule `" . $rule->source . "',
nor a target. That means makepp can't guarantee a correct build of that file.
Your rule should in essence follow one of these two schemes:
link: linkee
&ln --force --resolve \$(input) \$(output)
linkee link:
&echo Somehow produce linkee -o \$(output)
&ln -fr \$(outputs)\n";
}
}
Mpp::File::set_build_info_string $tinfo,
SORTED_DEPS => $sorted_dep_names,
DEP_SIGS => $sorted_dep_sigs,
BUILD_SIGNATURE => $tsig,
COMMAND => $command_string,
CWD => relative_filename( $build_cwd, $tinfo->{'..'} ),
ARCH => ARCHITECTURE, # Tag the build with the architecture, too.
@extra;
if( $build_cache && !$Mpp::BuildCache::read_only and # Store this file in a build cache?
my $bc_key = $build_check_method->
build_cache_key( $tinfo, $all_dependencies, $command_string, $build_cwd, $sig_method, $env )) {
# Store the file in cache.
unless( $build_cache->cache_file( $tinfo, $bc_key, \my $reason )) {
my $msg = 'Exporting of ' . absolute_filename( $tinfo ) . " to the build cache failed because $reason\n";
&$Mpp::BuildCache::error_hook( $msg ) if $Mpp::BuildCache::error_hook;
if( $reason =~ /\(OK\)$/ && !$stop_on_race ) {
warn $msg."This might be due to concurrent access, so we'll just skip exporting this target.\n";
} else {
die $msg;
}
}
}
} elsif( !exists $tinfo->{xTEMP} ) {
my $mfile = $rule->{MAKEFILE} || $tinfo->{'..'}{MAKEINFO};
if( $mfile && $mfile->expand_variable( 'makepp_require_phony', $rule->source )) {
$implicit_phony++; # DefaultRule has no MAKEFILE.
} elsif( UNIVERSAL::isa $rule, 'Mpp::DefaultRule' ) {
warn 'There is no rule to build inexistent ' . absolute_filename( $tinfo ) . "\n";
} elsif( $n_phony_messages++ ) { # Give a shorter message on other instances.
warn 'Target ' . absolute_filename( $tinfo ) . " is probably also phony.\n";
} else {
warn 'I attempted to build ' . absolute_filename( $tinfo ) . ',
but after successfully executing the commands, the target does not exist.
Perhaps it is a phony target? If so, the rule defining it should be modified
like this:
$(phony ', relative_filename($tinfo, $build_cwd), '): dependencies
actions
or you could also declare it as phony like this:
.PHONY: ', relative_filename( $tinfo, $build_cwd ), "\n";
}
undef $tinfo->{xPHONY};
$tinfo->{SIGNATURE} = 9e99; # Give it a very recent time to
# force rebuilding of everything that depends
# on it even if -m target_newer is in effect.
}
}
undef $tinfo->{xASSUME_NEW} if $dry_run; # If this is a dry run, the file
# didn't actually change, but force any command
# that depends on it to execute.
undef $tinfo->{BUILD_HANDLE} unless $is_recursive_make;
# No need to keep the handle around since
# the build was successful. Just leave a
# flag that we tried to build.
Mpp::File::set_rule( $tinfo, undef ); # Discard the rule to save memory.
}
my $real = ref($rule) ne 'Mpp::DefaultRule';
# Don't count targets for which there was no rule.
for( @$all_targets ) {
if( exists $_->{xPHONY} ) { ++$Mpp::n_phony_targets_built }
elsif( $real ) { ++$Mpp::n_files_changed }
}
};
my $error = $@;
&Mpp::File::update_build_infos # Flush the build info to disk.
unless $dry_run;
if( $implicit_phony ) { # Why must this block come before $critical_sections--?
warn $error if $error;
return -2;
}
$Mpp::critical_sections --;
propagate_pending_signals;
die $error if $error;
undef; # Return a success code.
}
our( $stop, $loop );
sub maybe_stop {
$stop = 1 if $loop and !defined $stop;
if( $stop ) {
$stop = 0; # Only stop once per loop (in case of prebuild)
print "\nmakepp: Stopped before building anything. Kill it; or continue with",
-t() ? " one of:\n\n\tfg\tbg" : ":\n\n",
"\tkill -CONT $$\n\n";
&flush_log;
kill STOP => $$;
}
}
# Find .makepprc upwards and add content to @ARGV
sub makepprc {
return if grep /^-(?:[h?V]|-help|-version)$/, @ARGV; # Avoid loading expensive things like huge repository.
my $finfo = Mpp::Subs::f_find_first_upwards '.makepprc', { CWD => $CWD_INFO }, 'startup', \1;
return if !$finfo or exists $finfo->{xMAKEPPRC}; # Already read?
return unless $finfo->{LSTAT}[Mpp::File::STAT_SIZE]; # Empty file is test dir boundary.
open my $fh, absolute_filename $finfo or die "$0: cannot open `.makepprc'--$!\n";
local $/;
unshift @ARGV, $finfo->{'..'} == $CWD_INFO ?
unquote_split_on_whitespace <$fh> :
('-C', $finfo->{'..'}, unquote_split_on_whitespace( <$fh> ), '-C', $CWD_INFO);
close $fh;
undef $finfo->{xMAKEPPRC}; # Mark as read
}
# parse_command_line(@ARGV, \%environment_hash);
# Parses and executes the given command line. Loads whatever makefiles are
# necessary and builds the appropriate targets, or at least starts off the
# build. (It doesn't wait until the build is finished.) Returns a list of
# build handles.
# The environment must be provided as a reference to a hash. Any rules which
# are executed have the environment set to this value before the shell is
# invoked.
# This parser only accepts options which are valid during recursive makes or
# from the load_makefile command. There are other options which are handled
# by the mainline makepp code which are not accepted here.
# parse_command_line assumes that the current directory is the proper directory
# for executing the command.
my @do_build;
our @ignore_opts;
if( $ENV{MAKEPP_IGNORE_OPTS} ) {
my( @lx, @l, @sx, @s );
for my $opt( split ' ', $ENV{MAKEPP_IGNORE_OPTS} ) {
if( $opt =~ /^--(.+)=/ ) {
push @lx, $1;
} elsif( $opt =~ /^--(.+)/ ) {
push @l, $1;
} elsif( $opt =~ /^-(.)./ ) {
push @sx, $1;
} elsif( $opt =~ /^-(.)/ ) {
push @s, $1;
} else {
die "\$MAKEPP_IGNORE_OPTS: '$opt' not understood\n";
}
}
my $nop;
local $" = '';
if( @lx || @sx ) {
my $lx = @lx ? join '|', @lx : 'DUMMY';
$lx = qr/$lx/;
my $sx = @sx > 1 ? qr/[@sx]/ : $sx[0];
push @ignore_opts, [$sx, $lx, \$nop, 1];
}
if( @l || @s ) {
my $l = @l ? join '|', @l : 'DUMMY';
$l = qr/$l/;
my $s = @s > 1 ? qr/[@s]/ : $s[0];
push @ignore_opts, [$s, $l, \$nop];
}
}
sub parse_command_line(\%@) {
local $_; # Don't mess up caller's $_.
my $this_ENV = shift; # First argument is the environment hash.
my @targets; # Targets we need to make.
my @initial_makefiles;
my @makefiles;
my @include_path = @makepp_include_path;
# Make a copy of the include path so we can
# add to it.
#
# Command line variable settings affect all makefiles regardless of where they
# are specified on the command line.
#
my %command_line_vars;
my $root_makefile;
my $target_cwd = $CWD_INFO;
my $tmp;
&makepprc;
while( @ARGV ) {
Mpp::Text::getopts \%command_line_vars, 1,
@ignore_opts,
@_,
['c', qr/root(?:[-_]?dir(?:ectory)?)?/, \$tmp, undef, sub {
$tmp = Mpp::Makefile::find_root_makefile_upwards $CWD_INFO
or $CWD_INFO->{ROOT}
or die "$0: No RootMakeppfile(.mk) found above `", absolute_filename( $CWD_INFO ), "'\n";
# See if we find a RootMakeppfile from here.
if( $tmp ) {
$root_makefile ||= $tmp; # TODO: Load multiple RootMakeppfiles for targets from multiple trees.
$tmp = $tmp->{'..'};
} else {
$tmp = $CWD_INFO->{ROOT};
}
chdir $tmp; # Switch to that directory.
$target_cwd = $tmp; # It's now the directory relative to which
# further targets are specified.
&makepprc;
}],
[qw(C directory), \$tmp, 1, sub {
if( ref $tmp ) { # Called via makepprc?
chdir $tmp; # Switch to that directory.
return;
}
$tmp = file_info $tmp;
Mpp::File::mkdir $tmp; # Make sure the directory exists.
chdir $tmp; # Switch to that directory.
$root_makefile ||= Mpp::Makefile::find_root_makefile_upwards $tmp;
# See if we find a RootMakeppfile from here.
$target_cwd = $tmp; # It's now the directory relative to which
# further targets are specified.
&makepprc;
}],
[undef, qr/dump[-_]?makep*file/, \$tmp, 1,
sub {
open my $fh, '>', $tmp or die "Failed to write $tmp--$!";
push @Mpp::close_fhs, $fh;
$CWD_INFO->{DUMP_MAKEFILE} = $fh;
}],
['e', qr/env(?:ironment)?[-_]?overrides?/, \$environment_override],
['f', qr/(?:make)?file/, \$tmp, 1, sub {
# Load a makefile without changing directory?
if( $tmp eq '-' ) { # Loading expects a real file(_info) so make one.
$tmp = Mpp::Subs::f_mktemp '';
open my $fh, '>', $tmp;
local $/; # Makefiles are small enough to slurp.
syswrite $fh, <>;
close $fh;
}
push @makefiles, [file_info( $tmp ), $CWD_INFO]; # Load makefile later
# when we can specify MAKECMDGOALS.
}],
[qw(F makeppfile), \$tmp, 1, sub {
$tmp = file_info $tmp;
my $mdir = $tmp; # Assume it is actually a directory.
Mpp::File::is_or_will_be_dir $tmp or $mdir = $tmp->{'..'};
# Default directory is the directory the
# makefile is in.
push @makefiles, [$tmp, $mdir]; # Load the makefile later.
Mpp::File::mkdir( $mdir ); # Make sure the directory exists, so we
# can cd into it.
$root_makefile ||= Mpp::Makefile::find_root_makefile_upwards $mdir;
# See if we find a RootMakeppfile from here.
$target_cwd = $mdir; # It's now the directory relative to which
# further targets are specified.
}],
['I', qr/include(?:[-_]?dir)?/, \$tmp, 1, sub {
# Specify more directories for the include
# path?
push @include_path, file_info $tmp;
}],
[undef, qr/load[-_]?make(?:pp)?file/, \$tmp, 1, sub {
$tmp = file_info $tmp;
my $mdir = $tmp; # Assume it is actually a directory.
Mpp::File::is_or_will_be_dir( $tmp ) or $mdir = $tmp->{'..'};
# Default directory is the directory the makefile is in.
push @initial_makefiles, [$tmp, $mdir]; # Load the makefile later.
Mpp::File::mkdir( $mdir ); # Make sure the directory exists, so we can cd into it.
}],
['o', qr/(?:assume[-_]?old|old[-_]?file)/, \$tmp, 1, sub {
$tmp = file_info $tmp;
$tmp->{ASSUME_UNCHANGED} = 1; # Don't pay any attention to this file.
$assume_unchanged_dir_flag = 1 if is_or_will_be_dir $tmp;
# Remember that we have to check parent dirs
}],
['r', qr/no[-_]?builtin[-_]?rules/, \$command_line_vars{makepp_no_builtin}],
# Pretend this was given as a variable.
[qw(R repository), \$tmp, 1, sub { Mpp::Subs::s_repository $tmp }],
['W', qr/(?:what[-_]?if|assume[-_]?new|new[-_]?file)/, \$tmp, 1, sub {
undef file_info( $tmp )->{xASSUME_NEW}; # Pretend this file has changed.
}],
@Mpp::common_opts;
delete $command_line_vars{makepp_no_builtin} unless defined $command_line_vars{makepp_no_builtin};
# Ref above brought this into existence.
push @targets, file_info shift @ARGV, $target_cwd
if @ARGV;
# Evidently it is a real target. This is a
# hack, because getopts has no way of handling
# normal args immediately. So we operate in
# strict mode, giving the 1st non-opt/non-var,
# at the beginning of @ARGV. Just one extra
# call per target...
}
close DATA; # Only needed for --help.
@_ = (); # Free lots of memory.
unless( defined $MAKEFLAGS ) { # 1st call
my $flags =
($environment_override ? 'e' : '') .
($Mpp::keep_going ? 'k' : '') .
($dry_run ? 'n' : '') .
($Mpp::quiet_flag ? 's' : '') .
($Mpp::log_level == 1 ? 'v' : '');
$MAKEFLAGS = join ' ',
($flags ? $flags : ()),
($Mpp::implicitly_load_makefiles ? () : '--noimplicitload'),
($Mpp::log_level ? () : '--nolog'),
($Mpp::print_directory ? () : '--noprintdirectory');
# TODO: what about -o -W
}
$root_makefile ||= Mpp::Makefile::find_root_makefile_upwards( $target_cwd );
if( $root_makefile ) {
unshift @initial_makefiles, [$root_makefile, $root_makefile->{'..'}];
my $build_root = $root_makefile->{'..'};
for( @do_build ) {
my $saw_build_root;
$_ = $_->{'..'} unless $_ == $Mpp::File::root;
while( !exists $_->{DONT_BUILD} ) {
$saw_build_root++ if $_ == $build_root;
if( $_ == $Mpp::File::root ) {
if( $saw_build_root ) {
$build_root->{DONT_BUILD} = 1;
# Found a do_build within build tree
# but not within a dont_build dir.
warn "--do-build not overriding --dont-build implies not building anything else.\n";
@do_build = ();
}
last;
}
$_ = $_->{'..'};
}
}
$dont_build_dir_flag = 1;
exists $build_root->{DONT_BUILD} or
undef $build_root->{DONT_BUILD};
exists $Mpp::File::root->{DONT_BUILD} or
$Mpp::File::root->{DONT_BUILD} = 2;
# If we have a root, don't build anything
# outside our build tree unless specifically
# requested. Use 2 to mean: implicitly set.
}
my $makecmdgoals = join(' ', map relative_filename( $_ ), @targets);
# Format MAKECMDGOALS.
if(@initial_makefiles) {
my $cwd = $CWD_INFO;
foreach (@initial_makefiles) {
Mpp::Makefile::load($_->[0], $_->[1], \%command_line_vars, $makecmdgoals,
\@include_path, $this_ENV); # Load the initial makefiles
}
chdir $cwd;
}
#
# At this point we have a list of target fileinfo structures in @targets.
# Now load makefiles. The procedure for finding a makefile is:
# 1) Use any explicitly specified on the command line.
# 2) If none, try to find one in the current directory.
# 3) If none and no RootMakeppfile, try all the directories containing targets.
#
{
last if @makefiles || $CWD_INFO->{MAKEINFO}; # last leaves this block
my $finfo = Mpp::Makefile::find_makefile_in( $CWD_INFO );
# Look in the current directory.
$finfo and @makefiles = [$finfo, $CWD_INFO] and last;
$root_makefile and last;
for( @targets ) {
$finfo = Mpp::Makefile::find_makefile_in( $_->{'..'} ) and
# Did we find one in this directory?
push @makefiles, [$finfo, $finfo->{'..'}];
}
@makefiles or @makefiles = [$CWD_INFO, $CWD_INFO];
# Load the default makefile if we still haven't found one.
}
$Mpp::Recursive::depth = # Avoid warning.
$Mpp::Recursive::depth = $command_line_vars{recursive_makepp}
if defined $Mpp::Recursive::traditional || defined $Mpp::Recursive::hybrid;
foreach (@makefiles) {
$_ = Mpp::Makefile::load($_->[0], $_->[1], \%command_line_vars, $makecmdgoals,
\@include_path, $this_ENV); # Load all the makefiles, and store
# the makeinfo structure back in @makefiles.
}
@targets or # No targets specified?
@targets = ($target_cwd->{MAKEINFO} || $makefiles[0] || $CWD_INFO)->{FIRST_TARGET} ||
# Use the first one in the first makefile. If
# we had no makefile in cwd but a
# RootMakeppfile, @makefiles is empty. That's
# why we fall back to $CWD_INFO, just so we
# don't reference undef.
die 'no targets specified and no default target in makefile `' .
absolute_filename( ($target_cwd->{MAKEINFO} || $makefiles[0])->{MAKEFILE} || $CWD_INFO ) .
"'\n";
@targets;
}
###############################################################################
#
# Parse the top level command. This is at the bottom of the file to force
# all the miscellaneous initialization stuff scattered in with the routines
# to be executed.
#
my @other_args; # Arguments that are valid at places other
# than the top level.
if( $MAKEPPFLAGS || $MAKEFLAGS ) {
unshift @ARGV, unquote_split_on_whitespace $MAKEPPFLAGS || $MAKEFLAGS;
# See if we're passed flags from a parent process.
$ARGV[0] =~ /^-/ || $ARGV[0] =~ /=/ or substr $ARGV[0], 0, 0, '-';
# If we're actually called from make, the first
# argument might not have a minus sign.
# However, don't put a minus sign in if it's
# a variable assignment.
}
undef $MAKEFLAGS; # 1st round of parsing shall set standard values.
unshift @ARGV, unquote_split_on_whitespace $ENV{_MAKEPPFLAGS}
if $ENV{_MAKEPPFLAGS};
perform eval {
# Now parse the command line, and handle the
# targets. Do fast exit without freeing all
# variables. Cleaning up the Mpp::File tree
# can take a long time and there's no need to
# do it. (This saves 8% of the run time on a
# Mpp::File tree with > 10^5 files, so it's not
# a trivial savings.)
my $tmp;
parse_command_line %global_ENV,
['b', qr/build[-_]?cache/, \$tmp, 1, sub {
Mpp::Subs::s_build_cache $tmp, undef, $progname, {global => 1};
}],
[undef, qr/build[-_]?check(?:[-_]?method)?/, \$tmp, 1, sub {
Mpp::Subs::s_build_check $tmp, undef, $progname, {global => 1};
}],
[undef, qr/do[-_]?build/, \$tmp, 1, sub {
$tmp = file_info $tmp;
undef $tmp->{DONT_BUILD};
push @do_build, $tmp;
}],
[undef, qr/do[-_]?read/, \$tmp, 1, sub {
undef file_info( $tmp )->{DONT_READ};
}],
[undef, qr/dont[-_]?build/, \$tmp, 1, sub {
$tmp = file_info $tmp;
$tmp->{DONT_BUILD} = 1;
$dont_build_dir_flag = 1 if is_or_will_be_dir $tmp;
# Remember that we have to check parent dirs
}],
[undef, qr/dont[-_]?read/, \$tmp, 1, sub {
$tmp = file_info $tmp;
$tmp->{DONT_READ} = 1;
$dont_read_dir_flag = 1 if is_or_will_be_dir $tmp;
# Remember that we have to check parent dirs
}],
[undef, qr/final[-_]?rules?[-_]?only/, \$final_rule_only],
[undef, qr/force[-_]?copy[-_]?from[-_]?bc/, eval '\$Mpp::BuildCache::force_copy'],
[undef, qr/force[-_]?rescan/, \$force_rescan],
[undef, 'gullible', \$gullible],
[undef, qr/hybrid(?:[-_]?recurs(?:ion|ive|ive[-_]?make))?/, \$Mpp::Recursive::hybrid],
[undef, qr/implicit[-_]load[-_]?[Mm]akeppfile[-_]?only/, \$implicit_load_makeppfile_only],
[undef, qr/(?:in(?:side)?[-_]?)?sand[-_]?box/, \$tmp, 1, sub {
$tmp = file_info $tmp;
$tmp->{IN_SANDBOX} = 1;
$sandbox_enabled_flag = 1; # default is now out-of-sandbox
$in_sandbox_dir_flag = 1 if is_or_will_be_dir $tmp;
# Remember that we have to check parent dirs
}],
[qw(j jobs), \$Mpp::Event::max_proc, 1, sub {
$Mpp::Event::max_proc =~ /^\d+$/ or die "$progname: invalid argument to -j\n";
if( is_windows > 0 ) {
$Mpp::Event::max_proc = 1;
warn "parallel make (-j) only supported on Cygwin or MinGW Perl\n";
return;
}
if( $Mpp::Event::max_proc != 1 ) { # More than one process?
$Mpp::parallel_make = 1;
# Remember if we're doing a parallel make.
# It's not sufficient to test $max_proc,
# because if we are doing a recursive make,
# we have to increment max_proc, and we don't
# want to switch into parallel make mode.
require File::Copy; # Needed for reemitting collected output.
# Do it once here, so as to not recheck each time.
}
}],
[undef, qr/last[-_]?chance[-_]?rules/, \$last_chance_rules],
['m', qr/signature(?:[-_]?method)?/, \$tmp, 1, sub {
Mpp::Subs::s_signature $tmp, undef, $progname, {global => 1};
}],
[undef, qr/override[-_]?signature(?:[-_]?method)?/, \$tmp, 1, sub {
Mpp::Subs::s_signature $tmp, undef, $progname, {global => 1, override => 1};
}],
[undef, qr/md5[-_]?(?:check[-_]?)?bc/, eval '\$Mpp::BuildCache::md5check'],
[undef, qr/no[-_]?cache[-_]?scaninfos?/, \$nocache_scaninfo],
[undef, qr/no[-_]?implicit[-_]?load/, \$implicitly_load_makefiles, undef, 0],
[undef, qr/no[-_]?path[-_]?exe(?:cutable)?[-_]?dep(?:s|endency|endencies)?/, \$no_path_executable_dependencies],
[undef, qr/no[-_]?populate[-_]?bc/, \$Mpp::BuildCache::read_only],
# don't populate bc with targets, just read from it
[undef, qr/no[-_]?remake[-_]?makefiles/, \$remake_makefiles, undef, 0],
# Don't remake makefiles automatically?
[undef, qr/out[-_]?of[-_]?sand[-_]?box/, \$tmp, 1, sub {
$tmp = file_info $tmp;
undef $tmp->{IN_SANDBOX};
$in_sandbox_dir_flag = 1 if is_or_will_be_dir $tmp;
# Remember that we have to check parent dirs
}],
[undef, qr/populate[-_]?bc[-_]?only/, \$Mpp::BuildCache::write_only],
[undef, qr/re?m(?:ove)?[-_]?stale(?:[-_]?files)?/, \$rm_stale_files],
[undef, qr/sand[-_]?box[-_]?warn(?:ing)?/, \$sandbox_warn_flag],
[undef, qr/loop|stop(?:[-_]?before[-_]?build(?:ing)?|[-_]?after[-_]?load(?:ing|ed)?)?/, \$loop],
[undef, qr/stop[-_]?(?:on[-_]?)?race/, \$stop_on_race],
[undef, qr/symlink[-_]?in[-_]?rep(?:os(?:itory)?)?[-_]?as[-_]?file/, eval '\$Mpp::Repository::symlink_as_file'],
[undef, qr/traditional(?:[-_]?recurs(?:ion|ive|ive[-_]?make))?/, \$Mpp::Recursive::traditional],
[undef, qr/virtual[-_]?sandbox/, \$virtual_sandbox_flag];
};
__DATA__
|