In installman, break the de-duplication code out from from podset().

It is both clearer and simpler to have separate subroutines to implement
the logic to avoid processing copied podfiles more than once.

diff --git a/pod/buildtoc b/pod/buildtoc
index 25ff14a..9a43fa5 100644 (file)
--- a/pod/buildtoc
+++ b/pod/buildtoc
@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 
 use strict;
-use vars qw(%Found $Quiet %Lengths %MD5s);
+use vars qw(%Found $Quiet);
 use File::Spec;
 use File::Find;
 use FindBin;
@@ -97,8 +97,11 @@ EOPOD2B
 
 # All the things in the master list that happen to be pod filenames
 foreach (grep {defined $_ && @$_ == 5 && !$_->[0]{toc_omit}} @{$state->{master}}) {
+    # Only bother registering those files that we know that we copy
+    register_duplicate_pod($_->[2])
+        if $_->[1] ne $_->[4];
     $roffitall .= "    \$mandir/$_->[4].1 \\\n";
-    podset($_->[4], $_->[2], $_->[1] ne $_->[4]);
+    podset($_->[4], $_->[2]);
 }
 
 foreach my $type (qw(PRAGMA MODULE)) {
@@ -111,8 +114,9 @@ foreach my $type (qw(PRAGMA MODULE)) {
 EOPOD2B
 
     foreach my $name (sort keys %{$Found{$type}}) {
-       $roffitall .= "    \$libdir/$name.3 \\\n"
-           if podset($name, $Found{$type}{$name});
+        next if is_duplicate_pod($Found{$type}{$name});
+        $roffitall .= "    \$libdir/$name.3 \\\n";
+        podset($name, $Found{$type}{$name});
     }
 }
 
@@ -219,25 +223,34 @@ exit(0);
 
 # Below are all the auxiliary routines for generating perltoc.pod
 
+{
+    my (%Lengths, %MD5s);
+
+    sub register_duplicate_pod {
+        my $file = shift;
+        # We are a dual-life perl*.pod file, which will have be copied to lib/
+        # by the build process, and hence also found there.
+        ++$Lengths{-s $file};
+        ++$MD5s{md5(slurp_or_die($file))};
+    }
+
+    sub is_duplicate_pod {
+        my $file = shift;
+        # We are a file in lib. Are we a duplicate?
+        # Don't bother calculating the MD5 if there's no interesting file of
+        # this length.
+        return $Lengths{-s $file} && $MD5s{md5(slurp_or_die($file))};
+    }
+}
+
 my ($inhead1, $inhead2, $initem);
 
 sub podset {
-    my ($pod, $file, $possibly_duplicated) = @_;
+    my ($pod, $file) = @_;
 
     local $/ = '';
 
     open my $fh, '<', $file or my_die "Can't open file '$file' for $pod: $!";
-    if ($possibly_duplicated) {
-       # We are a dual-life perl*.pod file, which will have be copied to lib/
-       # by the build process, and hence also found there.
-       ++$Lengths{-s $file};
-       ++$MD5s{md5(slurp_or_die($file))};
-    } elsif (!defined $possibly_duplicated) {
-       # We are a file in lib. Are we a duplicate?
-       # Don't bother calculating the MD5 if there's no intersting file of this
-       # length.
-       return if $Lengths{-s $file} && $MD5s{md5(slurp_or_die($file))};
-    }
 
     while(<$fh>) {
        tr/\015//d;
@@ -284,7 +297,6 @@ sub podset {
        }
        $OUT .= $_;
     }
-    return 1;
 }
 
 sub unhead1 {