From 8572e19327612353c476416a7a06af714e53f89a Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Tue, 28 Feb 2023 12:03:48 -0500
Subject: [PATCH] wikiheaders: Use Windows endlines in the source, Unix in the
 wiki.

(cherry picked from commit 7745c9b3ae3f2f47e2b3e55399afc5e7b86c0102)
---
 build-scripts/wikiheaders.pl | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/build-scripts/wikiheaders.pl b/build-scripts/wikiheaders.pl
index a9d8d729a..2927e6df7 100755
--- a/build-scripts/wikiheaders.pl
+++ b/build-scripts/wikiheaders.pl
@@ -3,7 +3,6 @@
 use warnings;
 use strict;
 use Text::Wrap;
-use File::Copy;
 
 $Text::Wrap::huge = 'overflow';
 
@@ -457,6 +456,23 @@ sub dewikify {
     return $retval;
 }
 
+sub filecopy {
+    my $src = shift;
+    my $dst = shift;
+    my $endline = shift;
+    $endline = "\n" if not defined $endline;
+
+    open(COPYIN, '<', $src) or die("Failed to open '$src' for reading: $!\n");
+    open(COPYOUT, '>', $dst) or die("Failed to open '$dst' for writing: $!\n");
+    while (<COPYIN>) {
+        chomp;
+        s/[ \t\r\n]*\Z//;
+        print COPYOUT "$_$endline";
+    }
+    close(COPYOUT);
+    close(COPYIN);
+}
+
 sub usage {
     die("USAGE: $0 <source code git clone path> <wiki git clone path> [--copy-to-headers|--copy-to-wiki|--copy-to-manpages] [--warn-about-missing]\n\n");
 }
@@ -1022,7 +1038,7 @@ if ($copy_direction == 1) {  # --copy-to-headers
                 my $dent = $_;
                 if ($dent =~ /\A(.*?)\.md\Z/) {  # we only bridge Markdown files here.
                     next if $1 eq 'FrontPage';
-                    copy("$wikireadmepath/$dent", "$readmepath/README-$dent") or die("failed to copy '$wikireadmepath/$dent' to '$readmepath/README-$dent': $!\n");
+                    filecopy("$wikireadmepath/$dent", "$readmepath/README-$dent", "\r\n");
                 }
             }
             closedir(DH);
@@ -1366,7 +1382,7 @@ if ($copy_direction == 1) {  # --copy-to-headers
                 if ($dent =~ /\AREADME\-(.*?\.md)\Z/) {  # we only bridge Markdown files here.
                     my $wikifname = $1;
                     next if $wikifname eq 'FrontPage.md';
-                    copy("$readmepath/$dent", "$wikireadmepath/$wikifname") or die("failed to copy '$readmepath/$dent' to '$wikireadmepath/$wikifname': $!\n");
+                    filecopy("$readmepath/$dent", "$wikireadmepath/$wikifname", "\n");
                 }
             }
             closedir(DH);