#
# $(srcdir)/subdirmk/generate [--srcdir=SRCDIR] [--] SUBDIR...
#
-# generates in each subdirectory from in each subdirectory
-# Subdir.mk.tmp Subdir.sd.mk
-# Makefile and included files
-# and in toplevel and in toplevel
-# main.mk.tmp Perdir.sd.mk
+# generates in each subdirectory
+# Subdir.mk.tmp
+# Makefile
+# and in toplevel
+# main.mk.tmp
use strict;
use POSIX;
$writing_output = undef;
}
-sub o {
+sub oraw {
+ die unless defined $writing_output;
+ print O @_ or die "error writing $writing_output.tmp: $!\n";
+}
+
+sub oud { # undoubled
if (defined $buffering_output) {
$buffering_output .= $_ foreach @_;
return;
}
- die unless defined $writing_output;
- print O @_ or die "error writing $writing_output.tmp: $!\n";
+ oraw @_;
+}
+
+our $ddbl;
+
+sub od { # maybe $-doubled
+ if (!$ddbl) {
+ oud @_;
+ return;
+ }
+ foreach (@_) {
+ my $e = $_;
+ $e =~ s{\$}{\$\$}g;
+ oud $e;
+ }
}
sub start_output_file ($) {
die "$writing_output ?" if $output_files{$writing_output}++;
my $tmp = "$writing_output.tmp";
open O, ">", $tmp or die "create $tmp: $!\n";
- o "# autogenerated - do not edit\n";
+ oraw "# autogenerated - do not edit\n";
}
sub install_output_files () {
my $suppress_templates=
'$(if $(filter-out clean real-clean, $(subdirmk_targets)),,'.
' MAKEFILE_TEMPLATES=)';
- o <<END;
+ oraw <<END;
default: all
\$(filter-out all,\$(MAKECMDGOALS)) all: run-main.mk
\@:
END
}
-sub process_input_mk ($$$$$$$$$);
-sub process_input_mk ($$$$$$$$$) {
- my ($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, $targets,
- $f, $esclitr, $enoent_ok) = @_;
+our ($dir_prefix, $dir_suffix, $dir_name,
+ $var_prefix, $var_prefix_name);
+
+sub dir_prefix ($) {
+ my ($path) = @_;
+ join '', map { "$_/" } @$path;
+}
+
+sub set_dir_vars ($) {
+ my ($path) = @_;
+ $dir_prefix = dir_prefix($path);
+ $dir_suffix = join '', map { "/$_" } @$path;
+ $dir_name = join '/', @$path ? @$path : '.';
+ $var_prefix_name = join '_', @$path ? @$path : qw(TOP);
+ $var_prefix = "${var_prefix_name}_";
+}
+
+sub process_input_mk ($$$$);
+sub process_input_mk ($$$$) {
+ my ($targets, $f, $esclitr, $enoent_ok) = @_;
my $caps_re = qr{[A-Z]};
my $lc_re = qr{[a-z]};
);
$pfxmap{$_} = $srcdirmap{$_}.'/' foreach keys %srcdirmap;
+ local $ddbl;
+ my @nest;
+
+ my $push_nest = sub {
+ my ($nk, $nndbl) = @_;
+ unshift @nest, [ $nk, $ddbl ];
+ $ddbl = $nndbl;
+ };
+ my $pop_nest = sub {
+ my ($nk) = @_;
+ die unless $nest[0][0] eq $nk;
+ $ddbl = (shift @nest)[1];
+ };
+
while (<$input>) {
if (s#^\s*$esc\:changequote\s+(\S+)\s+$##) {
$$esclitr = $1;
$set_esc->();
next;
- } elsif (s#^\s*$esc\:(?=(-?)include)##) {
+ } elsif (s#^\s*$esc\:endm\s+$##) {
+ $pop_nest->('Macro');
+ od "endef\n";
+ next;
+ } elsif (s#^\s*$esc\:(?=(-?)include|macro)##) {
$buffering_output='';
} elsif (m#^\s*$esc\:([a-z][-0-9a-z_]*)#) {
die "unknown directive $1";
} elsif (s{^\s*${esc}TARGETS(?:_([0-9a-zA-Z_]+))?(?=\W)}{}) {
my $t = $1 // 'all';
- o target_varname($var_prefix, $t);
+ od target_varname($var_prefix, $t);
$targets->{$t} //= [ ];
}
for (;;) {
- unless (s{^(.*?)$esc}{}) { o $_; last; }
- o $1;
- if (s{^\\$esc}{}) { o "$$esclitr" }
- elsif (s{^\\\$}{}) { o '$' }
- elsif (s{^$esc}{}) { o "$$esclitr$$esclitr" }
- elsif (m{^(?=$caps_re)}) { o $var_prefix }
- elsif (s{^\$([A-Za-z]\w+)}{}) { o "\$(${var_prefix}$1)" }
- elsif (s{^([~^]?)(?=$lc_re)}{}) { o $pfxmap{$1} }
- elsif (s{^_}{}) { o $var_prefix }
- elsif (s{^=}{}) { o $var_prefix_name }
- elsif (s{^([~^]?)/}{}) { o $pfxmap{$1} }
- elsif (s{^\.}{}) { o $dir_name }
- elsif (s{^([~^])\.}{}) { o $srcdirmap{$1} }
+ die if $ddbl && defined $buffering_output;
+ unless (s{^(.*?)$esc}{}) { od $_; last; }
+ od $1;
+ if (s{^\\$esc}{}) { od "$$esclitr" }
+ elsif (s{^\\\$}{}) { oud '$' }
+ elsif (s{^\\\s+$}{}) { }
+ elsif (s{^$esc}{}) { od "$$esclitr$$esclitr" }
+ elsif (m{^(?=$caps_re)}) { od $var_prefix }
+ elsif (s{^\$([A-Za-z]\w+)}{}) { od "\$(${var_prefix}$1)" }
+ elsif (s{^([~^]?)(?=$lc_re)}{}) { od $pfxmap{$1} }
+ elsif (s{^_}{}) { od $var_prefix }
+ elsif (s{^=}{}) { od $var_prefix_name }
+ elsif (s{^([~^]?)/}{}) { od $pfxmap{$1} }
+ elsif (s{^\.}{}) { od $dir_name }
+ elsif (s{^([~^])\.}{}) { od $srcdirmap{$1} }
+ elsif (s{^\$\-}{}) { $ddbl=undef; }
+ elsif (s{^\$\+}{}) { $ddbl=1; }
+ elsif (s{^\$\(}{}) { die unless $ddbl; oud "\$("; }
+ elsif (s{^\$(\d+)}{}) { die unless $ddbl; oud "\$($1)"; }
elsif (s{^([~^]?)(?=[ \t])}{}) {
my $prefix = $pfxmap{$1} // die;
my $after='';
if (m{([ \t])$esc}) { ($_,$after) = ($`, $1.$'); }
s{(?<=[ \t])(?=\S)(?!\\\s*$)}{$prefix}g;
- o $_;
+ od $_;
$_ = $after;
} elsif (s{^\#}{}) {
$_ = '';
} elsif (s{^![ \t]+}{}) {
- o $_;
+ od $_;
$_ = '';
} else {
die "bad escape $$esclitr$_ ";
$buffering_output=undef;
if (m#^(-?)include\s+(\S+)\s+$#) {
my $subf = "$srcdir/$2";
- process_input_mk($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, $targets,
- $subf, $esclitr, $1);
- o "\n";
+ process_input_mk($targets, $subf, $esclitr, $1);
+ od "\n";
+ } elsif (m#^macro\s+(\S+)\s+$#) {
+ od "define $1\n";
+ $push_nest->('Macro', 1);
} else {
die "internal error buffering directive $_ ";
}
close $input or die "close $f: $!\n";
}
-sub filter_subdir_mk ($$$$$$) {
- my ($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, $targets) = @_;
+sub filter_subdir_mk ($) {
+ my ($targets) = @_;
#use Data::Dumper;
#print STDERR "filter @_\n";
my $pi = sub {
my ($f, $enoentok) = @_;
- process_input_mk($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, $targets,
- "${srcdir}/$f", \$esclit, $enoentok);
+ process_input_mk($targets, "${srcdir}/$f", \$esclit, $enoentok);
};
+ $pi->("Prefix.sd.mk", 1);
$pi->("${dir_prefix}Subdir.sd.mk", 0);
- $pi->("Perdir.sd.mk", 1);
+ $pi->("Suffix.sd.mk", 1);
}
sub process_subtree ($$);
sub process_subtree ($$) {
- # => list of descendants (in form SUBDIR/)
+ # => list of targets (in form SUBDIR/)
# recursive, children first
my ($node, $path) = @_;
#use Data::Dumper;
#print STDERR Dumper(\@_);
- my $dir_prefix = join '', map { "$_/" } @$path;
- my $dir_suffix = join '', map { "/$_" } @$path;
- my $dir_name = join '/', @$path ? @$path : '.';
- my $var_prefix_name = join '_', @$path ? @$path : qw(TOP);
- my $var_prefix = "${var_prefix_name}_";
+ my $dir_prefix = dir_prefix($path);
+ # ^ this is the only var which we need before we come back from
+ # the recursion.
push @output_makefiles, "${dir_prefix}Subdir.mk";
write_makefile($dir_prefix, scalar @$path);
push @{ $targets{$_} }, $child_subdir foreach
process_subtree($child, \@childpath);
}
+
+ set_dir_vars($path);
start_output_file("${dir_prefix}Subdir.mk.tmp");
if ($node->[2]) {
- filter_subdir_mk($dir_prefix, $dir_suffix, $dir_name,
- $var_prefix, $var_prefix_name, \%targets);
+ filter_subdir_mk(\%targets);
} else {
my $sdmk = "${dir_prefix}Subdir.sd.mk";
if (stat $sdmk) {
}
}
- o "\n";
+ oraw "\n";
my @targets = sort keys %targets;
foreach my $target (@targets) {
return @targets;
}
+sub process_final ($) {
+ my ($otargets) = @_;
+ set_dir_vars([]);
+ push @output_makefiles, "Final.mk";
+ start_output_file("Final.mk.tmp");
+ my %ntargets;
+ my $esclit='&';
+ process_input_mk(\%ntargets, "${srcdir}/Final.sd.mk", \$esclit, 1);
+ delete $ntargets{$_} foreach @$otargets;
+ my @ntargets = sort keys %ntargets;
+ die "late new targets @ntargets" if @ntargets;
+}
+
sub process_tree() {
- process_subtree($root, [ ]);
+ my @targets = process_subtree($root, [ ]);
+ process_final(\@targets);
start_output_file("main.mk.tmp");
foreach my $v (qw(top_srcdir abs_top_srcdir)) {
- o "$v=\@$v@\n";
+ oraw "$v=\@$v@\n";
}
- o "SUBDIRMK_MAKEFILES :=\n";
- o "MAKEFILE_TEMPLATES :=\n";
+ oraw "SUBDIRMK_MAKEFILES :=\n";
+ oraw "MAKEFILE_TEMPLATES :=\n";
foreach my $mf (@output_makefiles) {
- o "SUBDIRMK_MAKEFILES += $mf\n";
+ oraw "SUBDIRMK_MAKEFILES += $mf\n";
}
foreach my $input (sort keys %input_files) {
- o "MAKEFILE_TEMPLATES += $input\n";
+ oraw "MAKEFILE_TEMPLATES += $input\n";
}
- o "include \$(SUBDIRMK_MAKEFILES)\n";
+ oraw "include \$(SUBDIRMK_MAKEFILES)\n";
}
build_tree();
~ian / subdirmk.git / blobdiff