Allow asciidoc formatted documentation in howto/

Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/Makefile

@@ -45,7 +45,7 @@ git-diff-%.txt: diff-format.txt diff-options.txt
 	touch $@
 
 clean:
-	rm -f *.xml *.html *.1 *.7 howto-index.txt
+	rm -f *.xml *.html *.1 *.7 howto-index.txt howto/*.html
 
 %.html : %.txt
 	asciidoc -b xhtml11 -d manpage $<
@@ -74,5 +74,12 @@ howto-index.html: howto-index.txt
 
 WEBDOC_DEST = /pub/software/scm/git/docs
 
+DOC_HTML += howto/revert-branch-rebase.html
+
+$(patsubst %.txt,%.html,$(wildcard howto/*.txt)): %.html : %.txt
+	rm -f $@+ $@
+	sed -e '1,/^$$/d' $? | asciidoc -b xhtml11 - >$@+
+	mv $@+ $@
+
 install-webdoc : html
 	sh ./install-webdoc.sh $(WEBDOC_DEST)

Documentation/howto-index.sh

@@ -41,7 +41,14 @@ do
 		q
 	}' "$txt"`
 
-	echo "* link:$txt[$title] $from
+	if grep 'Content-type: text/asciidoc' >/dev/null $txt
+	then
+		file=`expr "$txt" : '\(.*\)\.txt$'`.html
+	else
+		file="$txt"
+	fi
+
+	echo "* link:$file[$title] $from
 $abstract
 
 "

Documentation/install-webdoc.sh

@@ -2,7 +2,7 @@
 
 T="$1"
 
-for h in *.html howto/*.txt
+for h in *.html howto/*.txt howto/*.html
 do
 	diff -u "$T/$h" "$h" || {
 		echo >&2 "# install $h $T/$h"
@@ -12,7 +12,7 @@ do
 	}
 done
 strip_leading=`echo "$T/" | sed -e 's|.|.|g'`
-for th in "$T"/*.html "$T"/howto/*.txt
+for th in "$T"/*.html "$T"/howto/*.txt "$T"/howto/*.html
 do
 	h=`expr "$th" : "$strip_leading"'\(.*\)'`
 	case "$h" in