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![Jonathan Nieder](/assets/img/avatar_default.png)
On Windows the convention is to rely on filename extensions to decide whether a file is executable so Windows users are probably not relying on the executable bit of these scripts, but on other platforms it can be useful documentation. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
229 lines
6.5 KiB
Perl
Executable file
229 lines
6.5 KiB
Perl
Executable file
#!/usr/bin/perl -w
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######################################################################
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# Do not call this script directly!
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#
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# The generate script ensures that @INC is correct before the engine
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# is executed.
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#
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# Copyright (C) 2009 Marius Storm-Olsen <mstormo@gmail.com>
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######################################################################
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use strict;
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use File::Basename;
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use Cwd;
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my $file = $ARGV[0];
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die "No file provided!" if !defined $file;
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my ($cflags, $target, $type, $line);
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open(F, "<$file") || die "Couldn't open file $file";
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my @data = <F>;
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close(F);
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while (my $text = shift @data) {
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my $ate_next;
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do {
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$ate_next = 0;
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$line++;
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chomp $text;
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chop $text if ($text =~ /\r$/);
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if ($text =~ /\\$/) {
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$text =~ s/\\$//;
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$text .= shift @data;
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$ate_next = 1;
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}
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} while($ate_next);
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if($text =~ / -c /) {
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# compilation
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handleCompileLine($text, $line);
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} elsif ($text =~ / -o /) {
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# linking executable
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handleLinkLine($text, $line);
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} elsif ($text =~ /\.o / && $text =~ /\.a /) {
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# libifying
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handleLibLine($text, $line);
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# } elsif ($text =~ /^cp /) {
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# # copy file around
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#
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# } elsif ($text =~ /^rm -f /) {
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# # shell command
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#
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# } elsif ($text =~ /^make[ \[]/) {
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# # make output
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#
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# } elsif ($text =~ /^echo /) {
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# # echo to file
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#
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# } elsif ($text =~ /^if /) {
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# # shell conditional
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#
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# } elsif ($text =~ /^tclsh /) {
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# # translation stuff
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#
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# } elsif ($text =~ /^umask /) {
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# # handling boilerplates
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#
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# } elsif ($text =~ /\$\(\:\)/) {
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# # ignore
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#
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# } elsif ($text =~ /^FLAGS=/) {
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# # flags check for dependencies
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#
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# } elsif ($text =~ /^'\/usr\/bin\/perl' -MError -e/) {
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# # perl commands for copying files
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#
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# } elsif ($text =~ /generate-cmdlist\.sh/) {
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# # command for generating list of commands
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#
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# } elsif ($text =~ /^test / && $text =~ /|| rm -f /) {
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# # commands removing executables, if they exist
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#
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# } elsif ($text =~ /new locations or Tcl/) {
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# # command for detecting Tcl/Tk changes
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#
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# } elsif ($text =~ /mkdir -p/) {
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# # command creating path
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#
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# } elsif ($text =~ /: no custom templates yet/) {
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# # whatever
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} else {
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# print "Unhandled (line: $line): $text\n";
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}
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}
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close(F);
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# use Data::Dumper;
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# print "Parsed build structure:\n";
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# print Dumper(%build_structure);
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# -------------------------------------------------------------------
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# Functions under here
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# -------------------------------------------------------------------
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my (%build_structure, @defines, @incpaths, @cflags, @sources);
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sub clearCompileStep
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{
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@defines = ();
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@incpaths = ();
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@cflags = ();
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@sources = ();
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}
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sub removeDuplicates
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{
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my (%dupHash, $entry);
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%dupHash = map { $_, 1 } @defines;
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@defines = keys %dupHash;
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%dupHash = map { $_, 1 } @incpaths;
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@incpaths = keys %dupHash;
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%dupHash = map { $_, 1 } @cflags;
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@cflags = keys %dupHash;
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%dupHash = map { $_, 1 } @sources;
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@sources = keys %dupHash;
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}
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sub handleCompileLine
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{
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my ($line, $lineno) = @_;
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my @parts = split(' ', $line);
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shift(@parts); # ignore cmd
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while (my $part = shift @parts) {
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if ("$part" eq "-o") {
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# ignore object file
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shift @parts;
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} elsif ("$part" eq "-c") {
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# ignore compile flag
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} elsif ("$part" eq "-c") {
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} elsif ($part =~ /^.?-I/) {
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push(@incpaths, $part);
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} elsif ($part =~ /^.?-D/) {
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push(@defines, $part);
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} elsif ($part =~ /^-/) {
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push(@cflags, $part);
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} elsif ($part =~ /\.(c|cc|cpp)$/) {
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push(@sources, $part);
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} else {
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die "Unhandled compiler option @ line $lineno: $part";
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}
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}
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#print "Sources: @sources\nCFlags: @cflags\nDefine: @defines\nIncpat: @incpaths\n";
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#exit(1);
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}
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sub handleLibLine
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{
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my ($line, $lineno) = @_;
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my (@objfiles, @lflags, $libout, $part);
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# kill cmd and rm 'prefix'
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$line =~ s/^rm -f .* && .* rcs //;
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my @parts = split(' ', $line);
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while ($part = shift @parts) {
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if ($part =~ /^-/) {
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push(@lflags, $part);
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} elsif ($part =~ /\.(o|obj)$/) {
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push(@objfiles, $part);
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} elsif ($part =~ /\.(a|lib)$/) {
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$libout = $part;
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} else {
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die "Unhandled lib option @ line $lineno: $part";
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}
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}
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#print "LibOut: '$libout'\nLFlags: @lflags\nOfiles: @objfiles\n";
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#exit(1);
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removeDuplicates();
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push(@{$build_structure{"LIBS"}}, $libout);
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@{$build_structure{"LIBS_${libout}"}} = ("_DEFINES", "_INCLUDES", "_CFLAGS", "_SOURCES",
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"_OBJECTS");
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@{$build_structure{"LIBS_${libout}_DEFINES"}} = @defines;
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@{$build_structure{"LIBS_${libout}_INCLUDES"}} = @incpaths;
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@{$build_structure{"LIBS_${libout}_CFLAGS"}} = @cflags;
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@{$build_structure{"LIBS_${libout}_SOURCES"}} = @sources;
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@{$build_structure{"LIBS_${libout}_OBJECTS"}} = @objfiles;
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clearCompileStep();
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}
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sub handleLinkLine
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{
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my ($line, $lineno) = @_;
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my (@objfiles, @lflags, @libs, $appout, $part);
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my @parts = split(' ', $line);
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shift(@parts); # ignore cmd
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while ($part = shift @parts) {
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if ($part =~ /^-[GRIDO]/) {
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# eat compiler flags
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} elsif ("$part" eq "-o") {
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$appout = shift @parts;
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} elsif ($part =~ /^-/) {
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push(@lflags, $part);
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} elsif ($part =~ /\.(a|lib)$/) {
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push(@libs, $part);
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} elsif ($part =~ /\.(o|obj)$/) {
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push(@objfiles, $part);
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} else {
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die "Unhandled lib option @ line $lineno: $part";
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}
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}
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#print "AppOut: '$appout'\nLFlags: @lflags\nLibs : @libs\nOfiles: @objfiles\n";
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#exit(1);
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removeDuplicates();
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push(@{$build_structure{"APPS"}}, $appout);
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@{$build_structure{"APPS_${appout}"}} = ("_DEFINES", "_INCLUDES", "_CFLAGS", "_LFLAGS",
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"_SOURCES", "_OBJECTS", "_LIBS");
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@{$build_structure{"APPS_${appout}_DEFINES"}} = @defines;
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@{$build_structure{"APPS_${appout}_INCLUDES"}} = @incpaths;
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@{$build_structure{"APPS_${appout}_CFLAGS"}} = @cflags;
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@{$build_structure{"APPS_${appout}_LFLAGS"}} = @lflags;
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@{$build_structure{"APPS_${appout}_SOURCES"}} = @sources;
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@{$build_structure{"APPS_${appout}_OBJECTS"}} = @objfiles;
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@{$build_structure{"APPS_${appout}_LIBS"}} = @libs;
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clearCompileStep();
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}
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