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-rwxr-xr-xcontrib/buildsystems/engine.pl394
1 files changed, 394 insertions, 0 deletions
diff --git a/contrib/buildsystems/engine.pl b/contrib/buildsystems/engine.pl
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+++ b/contrib/buildsystems/engine.pl
@@ -0,0 +1,394 @@
+#!/usr/bin/perl -w
+######################################################################
+# Do not call this script directly!
+#
+# The generate script ensures that @INC is correct before the engine
+# is executed.
+#
+# Copyright (C) 2009 Marius Storm-Olsen <mstormo@gmail.com>
+######################################################################
+use strict;
+use File::Basename;
+use File::Spec;
+use Cwd;
+use Generators;
+use Text::ParseWords;
+
+my (%build_structure, %compile_options, @makedry);
+my $out_dir = getcwd();
+my $git_dir = $out_dir;
+$git_dir =~ s=\\=/=g;
+$git_dir = dirname($git_dir) while (!-e "$git_dir/git.c" && "$git_dir" ne "");
+die "Couldn't find Git repo" if ("$git_dir" eq "");
+
+my @gens = Generators::available();
+my $gen = "Vcproj";
+
+sub showUsage
+{
+ my $genlist = join(', ', @gens);
+ print << "EOM";
+generate usage:
+ -g <GENERATOR> --gen <GENERATOR> Specify the buildsystem generator (default: $gen)
+ Available: $genlist
+ -o <PATH> --out <PATH> Specify output directory generation (default: .)
+ --make-out <PATH> Write the output of GNU Make into a file
+ -i <FILE> --in <FILE> Specify input file, instead of running GNU Make
+ -h,-? --help This help
+EOM
+ exit 0;
+}
+
+# Parse command-line options
+my $make_out;
+while (@ARGV) {
+ my $arg = shift @ARGV;
+ if ("$arg" eq "-h" || "$arg" eq "--help" || "$arg" eq "-?") {
+ showUsage();
+ exit(0);
+ } elsif("$arg" eq "--out" || "$arg" eq "-o") {
+ $out_dir = shift @ARGV;
+ } elsif("$arg" eq "--make-out") {
+ $make_out = shift @ARGV;
+ } elsif("$arg" eq "--gen" || "$arg" eq "-g") {
+ $gen = shift @ARGV;
+ } elsif("$arg" eq "--in" || "$arg" eq "-i") {
+ my $infile = shift @ARGV;
+ open(F, "<$infile") || die "Couldn't open file $infile";
+ @makedry = <F>;
+ close(F);
+ } else {
+ die "Unknown option: " . $arg;
+ }
+}
+
+# NOT using File::Spec->rel2abs($path, $base) here, as
+# it fails badly for me in the msysgit environment
+$git_dir = File::Spec->rel2abs($git_dir);
+$out_dir = File::Spec->rel2abs($out_dir);
+my $rel_dir = makeOutRel2Git($git_dir, $out_dir);
+
+# Print some information so the user feels informed
+print << "EOM";
+-----
+Generator: $gen
+Git dir: $git_dir
+Out dir: $out_dir
+-----
+Running GNU Make to figure out build structure...
+EOM
+
+# Pipe a make --dry-run into a variable, if not already loaded from file
+# Capture the make dry stderr to file for review (will be empty for a release build).
+
+my $ErrsFile = "msvc-build-makedryerrors.txt";
+@makedry = `make -C $git_dir -n MSVC=1 SKIP_VCPKG=1 V=1 2>$ErrsFile`
+if !@makedry;
+# test for an empty Errors file and remove it
+unlink $ErrsFile if -f -z $ErrsFile;
+
+if (defined $make_out) {
+ open OUT, ">" . $make_out;
+ print OUT @makedry;
+ close OUT;
+}
+
+# Parse the make output into usable info
+parseMakeOutput();
+
+# Finally, ask the generator to start generating..
+Generators::generate($gen, $git_dir, $out_dir, $rel_dir, %build_structure);
+
+# main flow ends here
+# -------------------------------------------------------------------------------------------------
+
+
+# 1) path: /foo/bar/baz 2) path: /foo/bar/baz 3) path: /foo/bar/baz
+# base: /foo/bar/baz/temp base: /foo/bar base: /tmp
+# rel: .. rel: baz rel: ../foo/bar/baz
+sub makeOutRel2Git
+{
+ my ($path, $base) = @_;
+ my $rel;
+ if ("$path" eq "$base") {
+ return ".";
+ } elsif ($base =~ /^$path/) {
+ # case 1
+ my $tmp = $base;
+ $tmp =~ s/^$path//;
+ foreach (split('/', $tmp)) {
+ $rel .= "../" if ("$_" ne "");
+ }
+ } elsif ($path =~ /^$base/) {
+ # case 2
+ $rel = $path;
+ $rel =~ s/^$base//;
+ $rel = "./$rel";
+ } else {
+ my $tmp = $base;
+ foreach (split('/', $tmp)) {
+ $rel .= "../" if ("$_" ne "");
+ }
+ $rel .= $path;
+ }
+ $rel =~ s/\/\//\//g; # simplify
+ $rel =~ s/\/$//; # don't end with /
+ return $rel;
+}
+
+sub parseMakeOutput
+{
+ print "Parsing GNU Make output to figure out build structure...\n";
+ my $line = 0;
+ while (my $text = shift @makedry) {
+ my $ate_next;
+ do {
+ $ate_next = 0;
+ $line++;
+ chomp $text;
+ chop $text if ($text =~ /\r$/);
+ if ($text =~ /\\$/) {
+ $text =~ s/\\$//;
+ $text .= shift @makedry;
+ $ate_next = 1;
+ }
+ } while($ate_next);
+
+ if ($text =~ /^test /) {
+ # options to test (eg -o) may be mistaken for linker options
+ next;
+ }
+
+ if ($text =~ /^(mkdir|msgfmt) /) {
+ # options to the Portable Object translations
+ # the line "mkdir ... && msgfmt ..." contains no linker options
+ next;
+ }
+
+ if($text =~ / -c /) {
+ # compilation
+ handleCompileLine($text, $line);
+
+ } elsif ($text =~ / -o /) {
+ # linking executable
+ handleLinkLine($text, $line);
+
+ } elsif ($text =~ /\.o / && $text =~ /\.a /) {
+ # libifying
+ handleLibLine($text, $line);
+#
+# } elsif ($text =~ /^cp /) {
+# # copy file around
+#
+# } elsif ($text =~ /^rm -f /) {
+# # shell command
+#
+# } elsif ($text =~ /^make[ \[]/) {
+# # make output
+#
+# } elsif ($text =~ /^echo /) {
+# # echo to file
+#
+# } elsif ($text =~ /^if /) {
+# # shell conditional
+#
+# } elsif ($text =~ /^tclsh /) {
+# # translation stuff
+#
+# } elsif ($text =~ /^umask /) {
+# # handling boilerplates
+#
+# } elsif ($text =~ /\$\(\:\)/) {
+# # ignore
+#
+# } elsif ($text =~ /^FLAGS=/) {
+# # flags check for dependencies
+#
+# } elsif ($text =~ /^'\/usr\/bin\/perl' -MError -e/) {
+# # perl commands for copying files
+#
+# } elsif ($text =~ /generate-cmdlist\.sh/) {
+# # command for generating list of commands
+#
+# } elsif ($text =~ /new locations or Tcl/) {
+# # command for detecting Tcl/Tk changes
+#
+# } elsif ($text =~ /mkdir -p/) {
+# # command creating path
+#
+# } elsif ($text =~ /: no custom templates yet/) {
+# # whatever
+#
+# } else {
+# print "Unhandled (line: $line): $text\n";
+ }
+ }
+
+# use Data::Dumper;
+# print "Parsed build structure:\n";
+# print Dumper(%build_structure);
+}
+
+# variables for the compilation part of each step
+my (@defines, @incpaths, @cflags, @sources);
+
+sub clearCompileStep
+{
+ @defines = ();
+ @incpaths = ();
+ @cflags = ();
+ @sources = ();
+}
+
+sub removeDuplicates
+{
+ my (%dupHash, $entry);
+ %dupHash = map { $_, 1 } @defines;
+ @defines = keys %dupHash;
+
+ %dupHash = map { $_, 1 } @incpaths;
+ @incpaths = keys %dupHash;
+
+ %dupHash = map { $_, 1 } @cflags;
+ @cflags = keys %dupHash;
+}
+
+sub handleCompileLine
+{
+ my ($line, $lineno) = @_;
+ my @parts = shellwords($line);
+ my $sourcefile;
+ shift(@parts); # ignore cmd
+ while (my $part = shift @parts) {
+ if ("$part" eq "-o") {
+ # ignore object file
+ shift @parts;
+ } elsif ("$part" eq "-c") {
+ # ignore compile flag
+ } elsif ("$part" eq "-c") {
+ } elsif ($part =~ /^.?-I/) {
+ push(@incpaths, $part);
+ } elsif ($part =~ /^.?-D/) {
+ push(@defines, $part);
+ } elsif ($part =~ /^-/) {
+ push(@cflags, $part);
+ } elsif ($part =~ /\.(c|cc|cpp)$/) {
+ $sourcefile = $part;
+ } else {
+ die "Unhandled compiler option @ line $lineno: $part";
+ }
+ }
+ @{$compile_options{"${sourcefile}_CFLAGS"}} = @cflags;
+ @{$compile_options{"${sourcefile}_DEFINES"}} = @defines;
+ @{$compile_options{"${sourcefile}_INCPATHS"}} = @incpaths;
+ clearCompileStep();
+}
+
+sub handleLibLine
+{
+ my ($line, $lineno) = @_;
+ my (@objfiles, @lflags, $libout, $part);
+ # kill cmd and rm 'prefix'
+ $line =~ s/^rm -f .* && .* rcs //;
+ my @parts = shellwords($line);
+ while ($part = shift @parts) {
+ if ($part =~ /^-/) {
+ push(@lflags, $part);
+ } elsif ($part =~ /\.(o|obj)$/) {
+ push(@objfiles, $part);
+ } elsif ($part =~ /\.(a|lib)$/) {
+ $libout = $part;
+ $libout =~ s/\.a$//;
+ } else {
+ die "Unhandled lib option @ line $lineno: $part";
+ }
+ }
+# print "LibOut: '$libout'\nLFlags: @lflags\nOfiles: @objfiles\n";
+# exit(1);
+ foreach (@objfiles) {
+ my $sourcefile = $_;
+ $sourcefile =~ s/\.o$/.c/;
+ push(@sources, $sourcefile);
+ push(@cflags, @{$compile_options{"${sourcefile}_CFLAGS"}});
+ push(@defines, @{$compile_options{"${sourcefile}_DEFINES"}});
+ push(@incpaths, @{$compile_options{"${sourcefile}_INCPATHS"}});
+ }
+ removeDuplicates();
+
+ push(@{$build_structure{"LIBS"}}, $libout);
+ @{$build_structure{"LIBS_${libout}"}} = ("_DEFINES", "_INCLUDES", "_CFLAGS", "_SOURCES",
+ "_OBJECTS");
+ @{$build_structure{"LIBS_${libout}_DEFINES"}} = @defines;
+ @{$build_structure{"LIBS_${libout}_INCLUDES"}} = @incpaths;
+ @{$build_structure{"LIBS_${libout}_CFLAGS"}} = @cflags;
+ @{$build_structure{"LIBS_${libout}_LFLAGS"}} = @lflags;
+ @{$build_structure{"LIBS_${libout}_SOURCES"}} = @sources;
+ @{$build_structure{"LIBS_${libout}_OBJECTS"}} = @objfiles;
+ clearCompileStep();
+}
+
+sub handleLinkLine
+{
+ my ($line, $lineno) = @_;
+ my (@objfiles, @lflags, @libs, $appout, $part);
+ my @parts = shellwords($line);
+ shift(@parts); # ignore cmd
+ while ($part = shift @parts) {
+ if ($part =~ /^-IGNORE/) {
+ push(@lflags, $part);
+ } elsif ($part =~ /^-[GRIMDO]/) {
+ # eat compiler flags
+ } elsif ("$part" eq "-o") {
+ $appout = shift @parts;
+ } elsif ("$part" eq "-lz") {
+ push(@libs, "zlib.lib");
+ } elsif ("$part" eq "-lcrypto") {
+ push(@libs, "libcrypto.lib");
+ } elsif ("$part" eq "-lssl") {
+ push(@libs, "libssl.lib");
+ } elsif ("$part" eq "-lcurl") {
+ push(@libs, "libcurl.lib");
+ } elsif ("$part" eq "-lexpat") {
+ push(@libs, "libexpat.lib");
+ } elsif ("$part" eq "-liconv") {
+ push(@libs, "iconv.lib");
+ } elsif ($part =~ /^[-\/]/) {
+ push(@lflags, $part);
+ } elsif ($part =~ /\.(a|lib)$/) {
+ $part =~ s/\.a$/.lib/;
+ push(@libs, $part);
+ } elsif ($part eq 'invalidcontinue.obj') {
+ # ignore - known to MSVC
+ } elsif ($part =~ /\.o$/) {
+ push(@objfiles, $part);
+ } elsif ($part =~ /\.obj$/) {
+ # do nothing, 'make' should not be producing .obj, only .o files
+ } else {
+ die "Unhandled link option @ line $lineno: $part";
+ }
+ }
+# print "AppOut: '$appout'\nLFlags: @lflags\nLibs : @libs\nOfiles: @objfiles\n";
+# exit(1);
+ foreach (@objfiles) {
+ my $sourcefile = $_;
+ $sourcefile =~ s/\.o$/.c/;
+ push(@sources, $sourcefile);
+ push(@cflags, @{$compile_options{"${sourcefile}_CFLAGS"}});
+ push(@defines, @{$compile_options{"${sourcefile}_DEFINES"}});
+ push(@incpaths, @{$compile_options{"${sourcefile}_INCPATHS"}});
+ }
+ removeDuplicates();
+
+ removeDuplicates();
+ push(@{$build_structure{"APPS"}}, $appout);
+ @{$build_structure{"APPS_${appout}"}} = ("_DEFINES", "_INCLUDES", "_CFLAGS", "_LFLAGS",
+ "_SOURCES", "_OBJECTS", "_LIBS");
+ @{$build_structure{"APPS_${appout}_DEFINES"}} = @defines;
+ @{$build_structure{"APPS_${appout}_INCLUDES"}} = @incpaths;
+ @{$build_structure{"APPS_${appout}_CFLAGS"}} = @cflags;
+ @{$build_structure{"APPS_${appout}_LFLAGS"}} = @lflags;
+ @{$build_structure{"APPS_${appout}_SOURCES"}} = @sources;
+ @{$build_structure{"APPS_${appout}_OBJECTS"}} = @objfiles;
+ @{$build_structure{"APPS_${appout}_LIBS"}} = @libs;
+ clearCompileStep();
+}