- better perl files detection patch and test script

[packages/rpm.git] / rpm-perl-req-perlfile.patch

--- rpm-4.0/scripts/perl.req	Wed Jul  5 14:26:37 2000
+++ rpm-4.0.new/scripts/perl.req	Wed Nov 15 21:31:03 2000
@@ -82,6 +82,53 @@
 exit 0;
 
 
+sub is_perlfile {
+    my $file = shift;
+    my $fh = shift;
+    
+    my $fl = <$fh>;
+
+    my $is_perl = 0;
+  
+    my $nw = 0;
+
+    if ($file =~ /\.(so|ph|h|html|pod|gz|bz2|png|gif|jpg|xpm|a|patch|o|mo)$/) {
+	$is_perl = 0;
+	
+	# .al, .pl, .pm and .plx (perl-Font-TTF contains *.plx files)
+    } elsif ($file =~ /\.p[lm]x?$/ || $file =~ /\.al$/) {	
+	$is_perl = 1;
+	#print STDERR "$file PERL by ext\n";
+    } elsif ($fl =~ m|bin/perl| or $fl =~ m|env\s+perl| or $fl =~ m|exec\s+perl|) {
+	$is_perl = 1;
+	#print STDERR "$file PERL by perl\n";
+    } elsif ($fl =~ m|bin/sh|) {
+	while (<$fh>) {
+	    if (/eval/ && /perl/) {
+		$is_perl = 1;
+		last;
+	    }
+	    $nw++ if (/^\s*BEGIN/); 
+	    $nw++ if (/^\s*sub\s+/);
+	    $nw++ if (/^\s*package\s+/);
+	    $nw++ if (/^\s*use\s+strict\s+;/);
+	    $nw++ if (/^\s*use\s+vars\s*qw/);
+	    last if ($. > 30);
+	}
+    }
+    
+    seek($fh, 0, 0);
+    
+    $is_perl = 1 if ($nw > 1);  # propably perl file
+    
+    #if (!$is_perl) {
+    #   print STDERR "NOPERL $file\n";
+    #   return 0;
+    #}	
+    #print STDERR "PERL $file\n" if ($is_perl);
+    return $is_perl;
+}
+
 
 sub process_file {
   
@@ -90,6 +137,8 @@
   
   open(FILE, "<$file")||
     die("$0: Could not open file: '$file' : $!\n");
+
+  return if (!is_perlfile($file, \*FILE));
   
   while (<FILE>) {
     
@@ -209,6 +258,10 @@
       # if the module name starts in a dot it is not a module name.
 
       ($module =~ m/^\./) && next;
+
+      # name starts in a non alphanumeric character it is not a module 
+      # name.
+      ($module =~ m/^\W/) && next;
 
       # if the module ends with .pm strip it to leave only basename.