release: Patches to make tarball reproducible

Closes #26299

Signed-off-by: David Goulet <dgoulet@torproject.org>

doc/asciidoc-helper.sh

@@ -12,6 +12,8 @@ if [ $# != 3 ]; then
   exit 1;
 fi
 
+export SOURCE_DATE_EPOCH=$(git show --no-patch --format='%ct')
+
 output=$3
 
 if [ "$1" = "html" ]; then
@@ -19,7 +21,7 @@ if [ "$1" = "html" ]; then
     base=${output%%.html.in}
 
     if [ "$2" != none ]; then
-      TZ=UTC "$2" -d manpage -o "$output" "$input";
+      TZ=UTC "$2" -f "$(dirname $0)/nofooter.conf" -d manpage -o "$output" "$input";
     else
       echo "==================================";
       echo;

doc/nofooter.conf

+# There is a single space on the footer-text line to make it reproducible.
+[footer-text]
+