svn commit: r48778 - in head/share: mk xml

Author: wblock
Date: Wed May  4 22:04:56 2016
New Revision: 48778
URL: https://svnweb.freebsd.org/changeset/doc/48778

Log:
  Replace revision and publication date in generated documentation with
  the actual date of last update.  This fixes the problems with misleading
  "last update" dates that only reflect the change in a single
  rarely-changed file.  Note that hrs had reservations about doing this in
  the Makefile rather than with a stylesheet.  However, not all our source
  files are XML.  For now, this change works, and can be replaced by a
  more elegant solution later.  We should also consider checking dates on
  other files that affect the content or appearance of documents, like
  images.
  
  Submitted by:	grembo

Modified:
  head/share/mk/doc.commands.mk
  head/share/mk/doc.docbook.mk
  head/share/xml/freebsd-common.xsl
  head/share/xml/freebsd-xhtml-common.xsl

Modified: head/share/mk/doc.commands.mk
==============================================================================
--- head/share/mk/doc.commands.mk	Wed May  4 21:38:28 2016	(r48777)
+++ head/share/mk/doc.commands.mk	Wed May  4 22:04:56 2016	(r48778)
@@ -32,6 +32,7 @@ SED?=		/usr/bin/sed
 SETENV?=	/usr/bin/env
 SH?=		/bin/sh
 SORT?=		/usr/bin/sort
+TAIL?=		/usr/bin/tail
 TOUCH?=		/usr/bin/touch
 TRUE?=		/usr/bin/true
 XARGS?=		/usr/bin/xargs

Modified: head/share/mk/doc.docbook.mk
==============================================================================
--- head/share/mk/doc.docbook.mk	Wed May  4 21:38:28 2016	(r48777)
+++ head/share/mk/doc.docbook.mk	Wed May  4 22:04:56 2016	(r48778)
@@ -84,6 +84,18 @@ CSS_SHEET?=	${DOC_PREFIX}/share/misc/doc
 #
 NO_SUBDIR=      YES
 
+#
+# Determine latest revision
+#
+LATESTREVISION!=${GREP} -Ehos '\$$[F]reeBSD: ([^\$$ ]+ ){5}\$$' ${SRCS} | \
+		${AWK} '{ print \
+		  " --param latestrevision.timestamp \"'\''"$$4" "$$5"'\''\"" \
+		  " --param latestrevision.committer \"'\''"$$6"'\''\"" \
+		  " --param latestrevision.number \"'\''"$$3"'\''\"" \
+		}' | ${SORT} | ${TAIL} -n1
+
+XSLTPROCOPTS+=	${LATESTREVISION}
+
 # ------------------------------------------------------------------------
 #
 # Look at ${FORMATS} and work out which documents need to be generated.

Modified: head/share/xml/freebsd-common.xsl
==============================================================================
--- head/share/xml/freebsd-common.xsl	Wed May  4 21:38:28 2016	(r48777)
+++ head/share/xml/freebsd-common.xsl	Wed May  4 22:04:56 2016	(r48778)
@@ -53,7 +53,7 @@
     <xsl:variable name="pubdate">
       <xsl:choose>
 	<xsl:when test="contains(., '$FreeBSD')">
-	  <xsl:value-of select="str:split(., ' ')[4]"/>
+	  <xsl:value-of select="$latestrevision.timestamp"/>
 	</xsl:when>
 
         <xsl:otherwise>
@@ -64,7 +64,7 @@
 
     <xsl:variable name="committer">
       <xsl:if test="contains(., '$FreeBSD')">
-	<xsl:value-of select="str:split(., ' ')[6]"/>
+	<xsl:value-of select="$latestrevision.committer"/>
       </xsl:if>
     </xsl:variable>
 
@@ -91,7 +91,7 @@
   <xsl:template name="svnref.genlink"/>
 
   <xsl:template name="titlepage.releaseinfo">
-    <xsl:variable name="rev" select="str:split(., ' ')[3]"/>
+    <xsl:variable name="rev" select="$latestrevision.number"/>
 
     <xsl:call-template name="gentext">
       <xsl:with-param name="key" select="'Revision'"/>

Modified: head/share/xml/freebsd-xhtml-common.xsl
==============================================================================
--- head/share/xml/freebsd-xhtml-common.xsl	Wed May  4 21:38:28 2016	(r48777)
+++ head/share/xml/freebsd-xhtml-common.xsl	Wed May  4 22:04:56 2016	(r48778)
@@ -264,7 +264,7 @@
   </xsl:template>
 
   <xsl:template name="titlepage.releaseinfo">
-    <xsl:variable name="rev" select="str:split(., ' ')[3]"/>
+    <xsl:variable name="rev" select="$latestrevision.number"/>
 
     <xsl:call-template name="gentext">
       <xsl:with-param name="key" select="'Revision'"/>
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