From ec2c0a84c9ca9086c5230966d72d7f5569cb67d6 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian.jackson@eu.citrix.com>
Date: Tue, 29 Nov 2011 15:48:08 +0000
Subject: docs/html/: Arrange for automatic build of hypercall docs

- Use index.html rather than a stamp file.
- Automatically generate dependencies.
- Wire into the docs build system

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
---
 docs/Makefile    |  9 ++++++---
 docs/xen-headers | 14 ++++++++++++++
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/docs/Makefile b/docs/Makefile
index ace60bacda..28a5b10917 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -18,7 +18,8 @@ DOC_HTML	:= $(patsubst src/%.tex,html/reference/%/index.html,$(DOC_TEX)) \
 		   $(patsubst %.markdown,html/%.html,$(DOC_MARKDOWN)) \
 		   $(patsubst man/%.pod.1,html/man/%.1.html,$(DOC_MAN1SRC)) \
 		   $(patsubst man/%.pod.5,html/man/%.5.html,$(DOC_MAN5SRC)) \
-		   $(patsubst %.txt,html/%.txt,$(wildcard misc/*.txt))
+		   $(patsubst %.txt,html/%.txt,$(wildcard misc/*.txt)) \
+		   html/hypercall/index.html
 DOC_TXT         := $(patsubst %.txt,txt/%.txt,$(wildcard misc/*.txt)) \
 		   $(patsubst %.markdown,txt/%.txt,$(DOC_MARKDOWN)) \
 		   $(patsubst man/%.pod.1,txt/man/%.1.txt,$(DOC_MAN1SRC)) \
@@ -154,13 +155,15 @@ html/man/%.5.html: man/%.pod.5 Makefile
 	$(POD2HTML) --infile=$< --outfile=$@.tmp
 	$(call move-if-changed,$@.tmp,$@)
 
-html/hypercall/stamp:
+html/hypercall/index.html: ./xen-headers
+	rm -rf $(@D)
 	@$(INSTALL_DIR) $(@D)
 	./xen-headers -O $(@D) \
 		-T 'arch-x86_64 - Xen public headers' \
 		-X arch-ia64 -X arch-x86_32 -X xen-x86_32 \
 		../xen include/public include/xen/errno.h
-	touch $@
+
+-include html/hypercall/.deps
 
 txt/%.txt: %.txt
 	$(INSTALL_DIR) $(@D)
diff --git a/docs/xen-headers b/docs/xen-headers
index 5a62622a23..08fd7f3462 100755
--- a/docs/xen-headers
+++ b/docs/xen-headers
@@ -325,6 +325,12 @@ END
 }
 
 foreach $pass (qw(1 2)) {
+    my $depspath = "$outdir/.deps";
+    my $depsout;
+    if ($pass==2) {
+	$depsout = new IO::File "$depspath.new", 'w' or die $!;
+    }
+
     find({ wanted => 
 	       sub {
 		   return unless m/\.h$/;
@@ -341,11 +347,19 @@ foreach $pass (qw(1 2)) {
 		   $leaf_opath = $leaf;
 		   $leaf_opath =~ s#/#,#g;
 		   $leaf_opath .= ".html";
+		   print $depsout "$outdir/index.html: $File::Find::name\n"
+		       or die $!
+		       if $pass==2;
 		   process_file($File::Find::name, $outdir.'/'.$leaf_opath);
 	   },
 	   no_chdir => 1,
 	 },
 	 map { "$basedir/$_" } @indirs);
+
+    if ($pass==2) {
+	close $depsout or die $!;
+	rename "$depspath.new", "$depspath" or die $!;
+    }
 }
 
 output_index();
-- 
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