Fix generation of hardware.html for 12.0.

- Move definition of various branch-specific variables from
  Makefile to Makefile.inc.
- Include share/mk/doc.commands.mk to ensure ${SVN} is properly
  defined.  If ${SVN} is defined (default) and exists, hardware
  is appended to SUBDIR.  Add MKTEMP to share/mk/doc.commands.mk
  as part of this change.
- If MAN4DIR is not defined (default), use mktemp(1) to create
  a temporary directory to check out the share/man/man4 path of
  the relevant src branch (determined by evaluating the _BRANCH
  variable defined in the Makefile).  Once the dev-auto.end is
  created, the temporary MAN4DIR is removed.  The src-checkout
  and man4-rmsrc targets are limited specifically to exclude the
  make(install) case, as pseudo-repeatable errors have been
  observed under certain conditions that have yet to be determined.
- While here, remove hwlist entities from hardware.xml from
  drivers that are no longer present in 12.0-CURRENT.
- Also while here, bump copyright dates.

This is based on a differential revision that had received no
feedback seven months:
 https://reviews.freebsd.org/D13467

Approved by:	re, doceng (implicit, silence)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D13467

en_US.ISO8859-1/htdocs/releases/12.0R/Makefile

@@ -6,14 +6,12 @@
 .if exists(../Makefile.inc)
 .include "../Makefile.inc"
 .endif
+.if exists(Makefile.inc)
+.include "Makefile.inc"
+.endif
 
 RELN_ROOT?=	${.CURDIR}
 
-_OS?=		FreeBSD
-_REVISION?=	12.0
-_BRANCH?=	RELEASE
-THISRELEASE?=	${_OS}-${_REVISION}-${_BRANCH}
-
 DOCS=	index.xml \
 	schedule.xml
 
@@ -21,8 +19,8 @@ DATA=	docbook.css
 
 SUBDIR=	errata readme relnotes
 
-.if defined(MAN4DIR) && !empty(MAN4DIR)
-SUBDIR+=	hardware
+.if exists(${SVN})
+SUBDIR+=hardware
 .endif
 
 # PGP-signed checksums

en_US.ISO8859-1/htdocs/releases/12.0R/Makefile.inc

@@ -10,3 +10,20 @@ DESTDIR=	${HOME}/public_html/${WEBDIR}
 .endif
 DOCBOOK_DEPS_DISABLE=	YES
 .endif
+.include "${DOC_PREFIX}/share/mk/doc.commands.mk"
+
+_OS?=		FreeBSD
+_REVMAJOR?=	12
+_REVMINOR?=	0
+_REVISION?=	${REVMAJOR}.${REVMINOR}
+_BRANCH?=	CURRENT
+THISRELEASE?=	${_OS}-${_REVISION}-${_BRANCH}
+
+HOSTNAME!=	hostname
+.if (${_BRANCH:MCURRENT*} != "" || ${_BRANCH:MALPHA*} != "")
+SRCBRANCH=	head
+.elif (${_BRANCH:MPRERELEASE} != "" || ${_BRANCH:MBETA*} != "" || ${_BRANCH:MSTABLE*} != "")
+SRCBRANCH=	stable/${_REVMAJOR}
+.elif (${_BRANCH:MRC*} != "" || ${_BRANCH:MRELEASE*} != "")
+SRCBRANCH=	releng/${_REVMAJOR}.${_REVMINOR}
+.endif

en_US.ISO8859-1/htdocs/releases/12.0R/errata/errata.xml

@@ -24,7 +24,7 @@
     <pubdate>$FreeBSD$</pubdate>
 
     <copyright>
-      <year>2017</year>
+      <year>2018</year>
       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
 	Project</holder>
     </copyright>

en_US.ISO8859-1/htdocs/releases/12.0R/hardware/Makefile

@@ -4,9 +4,10 @@
 .include "../Makefile.inc"
 .endif
 
-# The path used on build-web is 'src/share/man/man4'.
-.if make(all) && (!defined(MAN4DIR) || empty(MAN4DIR) || !exists(${MAN4DIR}))
-. warning "MAN4DIR not found.  Unable to build hardware.html"
+MAN4TMP!=	${MKTEMP} -d ${.CURDIR}/svn.XXXXXXXX
+MAN4DIR=	${MAN4TMP}
+.if exists(${MAN4DIR})
+	rm -rf ${MAN4DIR}
 .endif
 
 MAN4PAGES?=	${MAN4DIR}/*.4 ${MAN4DIR}/man4.*/*.4
@@ -19,14 +20,27 @@ MAN2HWNOTES_FLAGS=
 MAN2HWNOTES_FLAGS=	-c
 .endif
 
-DOC=			hardware
-FORMATS?=		html
+DOC?=			hardware
+FORMATS?=		html txt
 INSTALL_COMPRESSED?=	gz
 INSTALL_ONLY_COMPRESSED=
 
-hardware.parsed.xml: dev-auto.ent
-dev-auto.ent:
+CLEANDIRS+=	${.CURDIR}/svn.*
+
+.if ${.TARGET:M${DOC}.html}
+hardware.parsed.xml:	dev-auto.ent man4-rmsrc
+dev-auto.ent:	man4-src-checkout
 	${PERL} ${MAN2HWNOTES_CMD} ${MAN2HWNOTES_FLAGS} -a ${ARCHLIST} -o ${.TARGET} ${MAN4PAGES} || (rm -f ${.TARGET})
 CLEANFILES+=	dev-auto.ent
+.endif
+
+man4-src-checkout:
+	mkdir -p ${MAN4TMP}
+	${SVN} co svn://svn.freebsd.org/base/${SRCBRANCH}/share/man/man4 \
+		${MAN4TMP}
+
+man4-rmsrc:
+	@# Just in case.
+	rm -rf ${MAN4DIR} || true
 
 .include "${DOC_PREFIX}/share/mk/doc.project.mk"

en_US.ISO8859-1/htdocs/releases/12.0R/hardware/hardware.xml

@@ -46,6 +46,7 @@
       <year>2015</year>
       <year>2016</year>
       <year>2017</year>
+      <year>2018</year>
       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
 	Project</holder>
     </copyright>
@@ -827,8 +828,6 @@
 
       &hwlist.ipheth;
 
-      &hwlist.ixgb;
-
       &hwlist.ixgbe;
 
       &hwlist.ixl;
@@ -853,8 +852,6 @@
 
       &hwlist.nge;
 
-      &hwlist.nxge;
-
       &hwlist.oce;
 
       &hwlist.pcn;
@@ -910,8 +907,6 @@
 
       &hwlist.vx;
 
-      &hwlist.vxge;
-
       &hwlist.wb;
 
       &hwlist.xe;
@@ -1005,8 +1000,6 @@
       &hwlist.cp;
 
       &hwlist.ctau;
-
-      &hwlist.cm;
     </sect2>
 
     <sect2 xml:id="serial">

en_US.ISO8859-1/htdocs/releases/12.0R/readme/readme.xml

@@ -43,6 +43,7 @@
       <year>2015</year>
       <year>2016</year>
       <year>2017</year>
+      <year>2018</year>
       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
 	Project</holder>
     </copyright>

en_US.ISO8859-1/htdocs/releases/12.0R/relnotes/relnotes.xml

@@ -25,7 +25,7 @@
     <!-- Last rev: 288943 -->
 
     <copyright>
-      <year>2017</year>
+      <year>2018</year>
       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
 	Project</holder>
     </copyright>

share/mk/doc.commands.mk

@@ -15,6 +15,7 @@ FIND?=		/usr/bin/find
 GREP?=		/usr/bin/grep
 LN?=		/bin/ln
 MKDIR?=		/bin/mkdir
+MKTEMP?=	/usr/bin/mktemp
 MV?=		/bin/mv
 RM?=		/bin/rm
 ISPELL?=	ispell