1 files changed, 150 insertions, 0 deletions
diff --git a/build/lineends.pl b/build/lineends.pl
new file mode 100644
index 0000000..8aa735c
--- /dev/null
+++ b/build/lineends.pl
@@ -0,0 +1,150 @@
+#!/usr/local/bin/perl
+#
+#  Heuristically converts line endings to the current OS's preferred format
+#  
+#  All existing line endings must be identical (e.g. lf's only, or even
+#  the accidental cr.cr.lf sequence.)  If some lines end lf, and others as
+#  cr.lf, the file is presumed binary.  If the cr character appears anywhere
+#  except prefixed to an lf, the file is presumed binary.  If there is no 
+#  change in the resulting file size, or the file is binary, the conversion 
+#  is discarded.
+#  
+#  Todo: Handle NULL stdin characters gracefully.
+#
+
+use IO::File;
+use File::Find;
+
+# The ignore list is '-' seperated, with this leading hyphen and
+# trailing hyphens in ever concatinated list below.
+$ignore = "-";
+
+# Image formats
+$ignore .= "gif-jpg-jpeg-png-ico-bmp-";
+
+# Archive formats
+$ignore .= "tar-gz-z-zip-jar-war-bz2-tgz-";
+
+# Many document formats
+$ignore .= "eps-psd-pdf-chm-ai-";
+
+# Some encodings
+$ignore .= "ucs2-ucs4-";
+
+# Some binary objects
+$ignore .= "class-so-dll-exe-obj-lib-a-o-lo-slo-sl-dylib-";
+
+# Some build env files 
+$ignore .= "mcp-xdc-ncb-opt-pdb-ilk-exp-res-pch-idb-sbr-";
+
+$preservedate = 1;
+
+$forceending = 0;
+
+$givenpaths = 0;
+
+$notnative = 0;
+
+while (defined @ARGV[0]) {
+    if (@ARGV[0] eq '--touch') {
+        $preservedate = 0;
+    }
+    elsif (@ARGV[0] eq '--nocr') {
+        $notnative = -1;
+    }
+    elsif (@ARGV[0] eq '--cr') {
+        $notnative = 1;
+    }
+    elsif (@ARGV[0] eq '--force') {
+        $forceending = 1;
+    }
+    elsif (@ARGV[0] eq '--FORCE') {
+        $forceending = 2;
+    }
+    elsif (@ARGV[0] =~ m/^-/) {
+        die "What is " . @ARGV[0] . " supposed to mean?\n\n" 
+          . "Syntax:\t$0 [option()s] [path(s)]\n\n" . <<'OUTCH'
+Where:  paths specifies the top level directory to convert (default of '.')
+        options are;
+
+          --cr     keep/add one ^M
+          --nocr   remove ^M's
+          --touch  the datestamp (default: keeps date/attribs)
+          --force  mismatched corrections (unbalanced ^M's)
+          --FORCE  all files regardless of file name!
+
+OUTCH
+    }
+    else {
+        find(\&totxt, @ARGV[0]);
+        print "scanned " . @ARGV[0] . "\n";
+        $givenpaths = 1;
+    }
+    shift @ARGV;
+}
+
+if (!$givenpaths) {
+    find(\&totxt, '.');
+    print "did .\n";
+}
+
+sub totxt {
+        $oname = $_;
+        $tname = '.#' . $_;
+        if (!-f) {
+            return;
+        }
+        @exts = split /\./;
+        if ($forceending < 2) {
+            while ($#exts && ($ext = pop(@exts))) {
+                if ($ignore =~ m|-$ext-|i) {
+                    return;
+                }
+            }
+        }
+        return if ($File::Find::dir =~ m|^(.+/)?.svn(/.+)?$|);
+        @ostat = stat($oname);
+        $srcfl = new IO::File $oname, "r" or die;
+        $dstfl = new IO::File $tname, "w" or die;
+        binmode $srcfl; 
+        if ($notnative) {
+            binmode $dstfl;
+        }
+        undef $t;
+        while (<$srcfl>) { 
+            if (s/(\r*)\n$/\n/) {
+                $n = length $1;
+                if (!defined $t) { 
+                    $t = $n; 
+                }
+                if (!$forceending && (($n != $t) || m/\r/)) {
+                    print "mismatch in " .$oname. ":" .$n. " expected " .$t. "\n";
+                    undef $t;
+                    last;
+                }
+                elsif ($notnative > 0) {
+                    s/\n$/\r\n/; 
+                }
+            }
+            print $dstfl $_; 
+        }
+        if (defined $t && (tell $srcfl == tell $dstfl)) {
+            undef $t;
+        }
+        undef $srcfl;
+        undef $dstfl;
+        if (defined $t) {
+            unlink $oname or die;
+            rename $tname, $oname or die;
+            @anames = ($oname);
+            if ($preservedate) {
+                utime $ostat[9], $ostat[9], @anames;
+            }
+            chmod $ostat[2] & 07777, @anames;
+            chown $ostat[5], $ostat[6], @anames;
+            print "Converted file " . $oname . " to text in " . $File::Find::dir . "\n"; 
+        }
+        else {
+            unlink $tname or die;
+        }
+}