From 95c62fb9ea35fab9706792e858ce66967501eb00 Mon Sep 17 00:00:00 2001
From: Jeff King <peff@peff.net>
Date: Tue, 29 Oct 2013 12:30:37 -0400
Subject: [PATCH] subtree: add makefile target for html docs

The Makefile currently builds the roff manpage, but not the
html form. As some people may prefer the latter, let's make
it an option to build that, too. We also wire it into "make
doc" so that it is built by default.

This patch does not build or install it as part of
"install-doc"; that would require extra infrastructure to
handle installing the html as we do in git's regular
Documentation/ tree. That can come later if somebody is
interested.

Tested-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 contrib/subtree/Makefile | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/contrib/subtree/Makefile b/contrib/subtree/Makefile
index 435b2dea293..4030a168986 100644
--- a/contrib/subtree/Makefile
+++ b/contrib/subtree/Makefile
@@ -21,13 +21,14 @@ GIT_SUBTREE    := git-subtree
 GIT_SUBTREE_DOC := git-subtree.1
 GIT_SUBTREE_XML := git-subtree.xml
 GIT_SUBTREE_TXT := git-subtree.txt
+GIT_SUBTREE_HTML := git-subtree.html
 
 all: $(GIT_SUBTREE)
 
 $(GIT_SUBTREE): $(GIT_SUBTREE_SH)
 	cp $< $@ && chmod +x $@
 
-doc: $(GIT_SUBTREE_DOC)
+doc: $(GIT_SUBTREE_DOC) $(GIT_SUBTREE_HTML)
 
 install: $(GIT_SUBTREE)
 	$(INSTALL) -d -m 755 $(DESTDIR)$(libexecdir)
@@ -46,6 +47,10 @@ $(GIT_SUBTREE_XML): $(GIT_SUBTREE_TXT)
 	asciidoc -b docbook -d manpage -f $(ASCIIDOC_CONF) \
 		-agit_version=$(gitver) $^
 
+$(GIT_SUBTREE_HTML): $(GIT_SUBTREE_TXT)
+	asciidoc -b xhtml11 -d manpage -f $(ASCIIDOC_CONF) \
+		-agit_version=$(gitver) $^
+
 test:
 	$(MAKE) -C t/ test