Merge branch 'ma/asciidoctor-refmiscinfo'

Update support for Asciidoctor documentation toolchain.

* ma/asciidoctor-refmiscinfo:
  doc-diff: replace --cut-header-footer with --cut-footer
  asciidoctor-extensions: provide `<refmiscinfo/>`
  Doc/Makefile: give mansource/-version/-manual attributes

Author: gitster

Documentation/Makefile

@@ -123,7 +123,8 @@ ASCIIDOC_HTML = xhtml11
 ASCIIDOC_DOCBOOK = docbook
 ASCIIDOC_CONF = -f asciidoc.conf
 ASCIIDOC_COMMON = $(ASCIIDOC) $(ASCIIDOC_EXTRA) $(ASCIIDOC_CONF) \
-		-agit_version=$(GIT_VERSION)
+		-amanversion=$(GIT_VERSION) \
+		-amanmanual='Git Manual' -amansource='Git'
 TXT_TO_HTML = $(ASCIIDOC_COMMON) -b $(ASCIIDOC_HTML)
 TXT_TO_XML = $(ASCIIDOC_COMMON) -b $(ASCIIDOC_DOCBOOK)
 MANPAGE_XSL = manpage-normal.xsl

Documentation/asciidoc.conf

@@ -78,9 +78,9 @@ template::[header-declarations]
 <refmeta>
 <refentrytitle>{mantitle}</refentrytitle>
 <manvolnum>{manvolnum}</manvolnum>
-<refmiscinfo class="source">Git</refmiscinfo>
-<refmiscinfo class="version">{git_version}</refmiscinfo>
-<refmiscinfo class="manual">Git Manual</refmiscinfo>
+<refmiscinfo class="source">{mansource}</refmiscinfo>
+<refmiscinfo class="version">{manversion}</refmiscinfo>
+<refmiscinfo class="manual">{manmanual}</refmiscinfo>
 </refmeta>
 <refnamediv>
   <refname>{manname}</refname>

Documentation/asciidoctor-extensions.rb

@@ -20,9 +20,26 @@ def process(parent, target, attrs)
         end
       end
     end
+
+    class DocumentPostProcessor < Asciidoctor::Extensions::Postprocessor
+      def process document, output
+        if document.basebackend? 'docbook'
+          mansource = document.attributes['mansource']
+          manversion = document.attributes['manversion']
+          manmanual = document.attributes['manmanual']
+          new_tags = "" \
+            "<refmiscinfo class=\"source\">#{mansource}</refmiscinfo>\n" \
+            "<refmiscinfo class=\"version\">#{manversion}</refmiscinfo>\n" \
+            "<refmiscinfo class=\"manual\">#{manmanual}</refmiscinfo>\n"
+          output = output.sub(/<\/refmeta>/, new_tags + "</refmeta>")
+        end
+        output
+      end
+    end
   end
 end
 
 Asciidoctor::Extensions.register do
   inline_macro Git::Documentation::LinkGitProcessor, :linkgit
+  postprocessor Git::Documentation::DocumentPostProcessor
 end

Documentation/doc-diff

@@ -21,7 +21,7 @@ asciidoc		use asciidoc with both commits
 to-asciidoc		use asciidoc with the 'to'-commit
 to-asciidoctor		use asciidoctor with the 'to'-commit
 asciidoctor		use asciidoctor with both commits
-cut-header-footer	cut away header and footer
+cut-footer		cut away footer
 "
 SUBDIRECTORY_OK=1
 . "$(git --exec-path)/git-sh-setup"
@@ -31,7 +31,7 @@ force=
 clean=
 from_program=
 to_program=
-cut_header_footer=
+cut_footer=
 while test $# -gt 0
 do
 	case "$1" in
@@ -55,8 +55,8 @@ do
 	--asciidoc)
 		from_program=-asciidoc
 		to_program=-asciidoc ;;
-	--cut-header-footer)
-		cut_header_footer=-cut-header-footer ;;
+	--cut-footer)
+		cut_footer=-cut-footer ;;
 	--)
 		shift; break ;;
 	*)
@@ -118,8 +118,8 @@ construct_makemanflags () {
 from_makemanflags=$(construct_makemanflags "$from_program") &&
 to_makemanflags=$(construct_makemanflags "$to_program") &&
 
-from_dir=$from_oid$from_program$cut_header_footer &&
-to_dir=$to_oid$to_program$cut_header_footer &&
+from_dir=$from_oid$from_program$cut_footer &&
+to_dir=$to_oid$to_program$cut_footer &&
 
 # generate_render_makefile <srcdir> <dstdir>
 generate_render_makefile () {
@@ -169,12 +169,11 @@ render_tree () {
 		make -j$parallel -f - &&
 		mv "$tmp/rendered/$dname+" "$tmp/rendered/$dname"
 
-		if test "$cut_header_footer" = "-cut-header-footer"
+		if test "$cut_footer" = "-cut-footer"
 		then
 			for f in $(find "$tmp/rendered/$dname" -type f)
 			do
-				tail -n +3 "$f" | head -n -2 |
-				sed -e '1{/^$/d}' -e '${/^$/d}' >"$f+" &&
+				head -n -2 "$f" | sed -e '${/^$/d}' >"$f+" &&
 				mv "$f+" "$f" ||
 				return 1
 			done