#
# $(srcdir)/subdirmk/generate [--srcdir=SRCDIR] [--] SUBDIR...
#
-# generates in each subdirectory
-# Subdir.mk.tmp
-# Makefile
-# and in toplevel
-# main.mk.tmp
-# from in each subdirectory
-# Subdir.mk.in
-# and at toplevel
-# Perdir.mk.in
+# generates in each subdirectory from in each subdirectory
+# Subdir.mk.tmp Subdir.sd.mk
+# Makefile
+# and in toplevel and in toplevel
+# main.mk.tmp Perdir.sd.mk
use strict;
use POSIX;
}
our $writing_output;
+our $buffering_output;
our %output_files;
+our %input_files;
sub close_any_output_file() {
return unless defined $writing_output;
}
sub o {
+ if (defined $buffering_output) {
+ $buffering_output .= $_ foreach @_;
+ return;
+ }
die unless defined $writing_output;
print O @_ or die "error writing $writing_output.tmp: $!\n";
}
my $cd = $depth ? join('/', ('..',) x $depth) : '.';
o <<END;
default: all
- \@: \$@
%: FORCE-ALWAYS-RUN
- \$(MAKE) -C $cd -f main.mk ${dir_prefix}\$@
+ \@:
Makefile FORCE-ALWAYS-RUN:
- \@: \$@
+ \$(MAKE) -C $cd -f main.mk \$(addprefix ${dir_prefix},\$(MAKECMDGOALS))
.SUFFIXES:
END
}
-sub filter_subdir_mk ($$$$$) {
+sub process_input_mk ($$$$$$$$);
+sub process_input_mk ($$$$$$$$) {
my ($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $targets) = @_;
+ $var_prefix, $targets,
+ $f, $esclitr, $enoent_ok) = @_;
- #use Data::Dumper;
- #print STDERR "filter @_\n";
+ my $caps_re = qr{[A-Z]};
+ my $lc_re = qr{[a-z]};
- my $in = "${srcdir}/${dir_prefix}Subdir.mk.in";
- my $caps_re = qr{[A-Z][0-9_A-Z]*(?=\W)};
- my $lc_re = qr{[a-z][-+,0-9_a-z]*(?=\W)};
- my $esclit = '&';
- my $esc = '\\&';
+ my $esc;
+ my $set_esc = sub {
+ $esc = $$esclitr;
+ $esc =~ s/\W/\\$&/g;
+ };
+ $set_esc->();
- for my $f ($in, "${srcdir}/Perdir.mk.in") {
- open I, '<', $f or die "open $f: $!\n";
- while (<I>) {
+ my $input = new IO::File $f, '<';
+ if (!$input) {
+ die "open $f: $!\n" unless $!==ENOENT && $enoent_ok;
+ return;
+ }
+ $input_files{$f}++;
+
+ while (<$input>) {
+ if (s#^\s*$esc\:##) {
+ $buffering_output='';
+ }
for (;;) {
unless (s{^(.*?)(\\)?(?=$esc)}{}) { o $_; last; }
o $1;
- if ($2) { o $esclit; next; }
+ if ($2) { o $$esclitr; next; }
s{^$esc}{} or die "$_ ?";
- if (s{^$esc}{}) { o "$esclit$esclit" }
+ if (s{^$esc}{}) { o "$$esclitr$$esclitr" }
elsif (s{^TARGETS(?:_([0-9a-zA-Z_]+))?(?=\W)}{}) {
my $t = $1 // 'all';
o target_varname($var_prefix, $t);
o $_;
$_ = '';
} elsif (s{^!(\S+)(?:[ \t]+|$)}{}) {
- $esclit = $1;
- $esc = $esclit;
- $esc =~ s/\W/\\$&/g;
+ $$esclitr = $1;
+ $set_esc->();
+ } else {
+ die "bad escape $$esclitr$_ ";
+ }
+ }
+ if (defined $buffering_output) {
+ $_=$buffering_output;
+ $buffering_output=undef;
+ if (m#^(-?)include\s+(\S+)\s+$#) {
+ my $subf = "$srcdir/$2";
+ process_input_mk($dir_prefix, $dir_suffix, $dir_name,
+ $var_prefix, $targets,
+ $subf, $esclitr, $1);
+ o "\n";
} else {
- die "bad escape $esclit$_ ";
+ die "unknown directive $_ ";
}
}
- }
- I->error and die "read $f: $!\n";
}
+ $input->error and die "read $f: $!\n";
+ close $input or die "close $f: $!\n";
+}
+
+sub filter_subdir_mk ($$$$$) {
+ my ($dir_prefix, $dir_suffix, $dir_name,
+ $var_prefix, $targets) = @_;
+
+ #use Data::Dumper;
+ #print STDERR "filter @_\n";
+
+ my $esclit = '&';
+
+ my $pi = sub {
+ my ($f, $enoentok) = @_;
+ process_input_mk($dir_prefix, $dir_suffix, $dir_name,
+ $var_prefix, $targets,
+ "${srcdir}/$f", \$esclit, $enoentok);
+ };
+ $pi->("${dir_prefix}Subdir.sd.mk", 0);
+ $pi->("Perdir.sd.mk", 1);
}
sub process_subtree ($$);
my @targets = sort keys %targets;
foreach my $target (@targets) {
my $target_varname = target_varname($var_prefix, $target);
- print O "${dir_prefix}${target}: \$($target_varname)";
+ print O "${dir_prefix}${target}:: \$($target_varname)";
foreach my $child_subdir (@{ $targets{$target} }) {
print O " $child_subdir/$target";
}
foreach my $subdir (@subdirs) {
o "MAKEFILES += $subdir/Subdir.mk\n";
}
+ foreach my $input (sort keys %input_files) {
+ o "MAKEFILE_TEMPLATES += $input\n";
+ }
o "include \$(MAKEFILES)";
}