It's a bit odd, but "make update" in src/ can also update the ports/,

doc/, and now www/ trees, but only using the "cvsup" transport.

When "make update" is run using a tree's makefile, it can also use
"cvs" (except for www/) and "svn" (only src/).

Clean up documentation and code regarding "make update":

- Increase oddness by adding support for WWWSUPFILE and NO_WWWUPDATE to
  Makefile.inc1 (analogous to PORTSSUPFILE/NO_PORTSUPDATE and
  DOCSUPFILE/NO_DOCUPDATE; WWWSUPFILE already supported by www/Makefile).

- Document all trees that support CVS_UPDATE.

- Document all trees that support SUP_UPDATE.

- Document SVN_UPDATE.

- Document NO_WWWUPDATE.

- make.conf(5) mistakenly said that *SUPFILE* had defaults.

- Add an example entry for WWWSUPFILE.

Makefile

@@ -19,7 +19,7 @@
 # kernel              - buildkernel + installkernel.
 # kernel-toolchain    - Builds the subset of world necessary to build a kernel
 # doxygen             - Build API documentation of the kernel, needs doxygen.
-# update              - Convenient way to update your source tree (cvs).
+# update              - Convenient way to update your source tree(s).
 # check-old           - List obsolete directories/files/libraries.
 # check-old-dirs      - List obsolete directories.
 # check-old-files     - List obsolete files.

Makefile.inc1

@@ -12,6 +12,7 @@
 #	-DNO_KERNELOBJ do not run ${MAKE} obj in ${MAKE} buildkernel
 #	-DNO_PORTSUPDATE do not update ports in ${MAKE} update
 #	-DNO_DOCUPDATE do not update doc in ${MAKE} update
+#	-DNO_WWWUPDATE do not update www in ${MAKE} update
 #	-DNO_CTF do not run the DTrace CTF conversion tools on built objects
 #	LOCAL_DIRS="list of dirs" to add additional dirs to the SUBDIR list
 #	TARGET="machine" to crossbuild world for a different machine type
@@ -904,7 +905,7 @@ doxygen:
 #
 # update
 #
-# Update the source tree, by running cvsup and/or running cvs to update to the
+# Update the source tree(s), by running cvsup/cvs/svn to update to the
 # latest copy.
 #
 update:
@@ -927,6 +928,9 @@ update:
 .if defined(DOCSUPFILE) && !defined(NO_DOCUPDATE)
 	@${SUP} ${SUPFLAGS} ${DOCSUPFILE}
 .endif
+.if defined(WWWSUPFILE) && !defined(NO_WWWUPDATE)
+	@${SUP} ${SUPFLAGS} ${WWWSUPFILE}
+.endif
 .endif
 .if defined(CVS_UPDATE)
 	@cd ${.CURDIR} ; \

share/examples/etc/make.conf

@@ -188,6 +188,7 @@
 #SUPFILE=        /usr/share/examples/cvsup/standard-supfile
 #PORTSSUPFILE=   /usr/share/examples/cvsup/ports-supfile
 #DOCSUPFILE=     /usr/share/examples/cvsup/doc-supfile
+#WWWSUPFILE=     /usr/share/examples/cvsup/www-supfile
 #
 # top(1) uses a hash table for the user names.  The size of this hash
 # can be tuned to match the number of local users.  The table size should

share/man/man5/make.conf.5

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 15, 2009
+.Dd June 16, 2011
 .Dt MAKE.CONF 5
 .Os
 .Sh NAME
@@ -181,7 +181,11 @@ options.
 .Pq Vt bool
 Set this to use
 .Xr cvs 1
-to update your ports with
+to update your
+.Pa src , ports
+and
+.Pa doc
+trees with
 .Dq Li "make update" .
 .It Va CXXFLAGS
 .Pq Vt str
@@ -202,8 +206,8 @@ The documentation
 .Ar supfile
 to use when doing a
 .Dq Li "make update" .
-This defaults to
-.Pa /usr/share/examples/cvsup/doc\-supfile .
+For example,
+.Pa /usr/share/examples/cvsup/doc-supfile .
 .It Va INSTALL
 .Pq Vt str
 the default install command.
@@ -259,14 +263,18 @@ Set this to not update the doc tree during
 .Pq Vt bool
 Set this to not update the ports tree during
 .Dq Li "make update" .
+.It Va NO_WWWUPDATE
+.Pq Vt bool
+Set this to not update the www tree during
+.Dq Li "make update" .
 .It Va PORTSSUPFILE
 .Pq Vt str
 The ports
 .Ar supfile
 to use when doing a
 .Dq Li "make update" .
-This defaults to
-.Pa /usr/share/examples/cvsup/ports\-supfile .
+For example,
+.Pa /usr/share/examples/cvsup/ports-supfile .
 .It Va SUP
 .Pq Vt str
 The location of the
@@ -281,24 +289,20 @@ The first
 .Ar supfile
 to use when doing a
 .Dq Li "make update" .
-This defaults to
-.Pa /usr/share/examples/cvsup/standard\-supfile .
+For example,
+.Pa /usr/share/examples/cvsup/standard-supfile .
 .It Va SUPFILE1
 .Pq Vt str
 The second
 .Ar supfile
 to use when doing a
 .Dq Li "make update" .
-This defaults to
-.Pa /usr/share/examples/cvsup/secure\-supfile .
 .It Va SUPFILE2
 .Pq Vt str
 The third
 .Ar supfile
 to use when doing a
 .Dq Li "make update" .
-This defaults to
-.Pa /usr/share/examples/cvsup/secure\-supfile .
 .It Va SUPFLAGS
 .Pq Vt str
 The flag for the
@@ -315,16 +319,28 @@ The hostname of the sup server to use when doing
 .Pq Vt bool
 Set this to use
 .Xr cvsup 1
-to update your ports with
+to update your
+.Pa src , ports , doc
+and
+.Pa www
+trees with
+.Dq Li "make update" .
+.It Va SVN_UPDATE
+.Pq Vt bool
+Set this to use
+.Xr svn 1
+to update your
+.Pa src
+tree with
 .Dq Li "make update" .
 .It Va WWWSUPFILE
 .Pq Vt str
 The www
 .Ar supfile
 to use when doing a
-.Dq Li "make update"
-This defaults to
-.Pa /usr/share/examples/cvsup/www\-supfile .
+.Dq Li "make update" .
+For example,
+.Pa /usr/share/examples/cvsup/www-supfile .
 .El
 .Ss "BUILDING THE KERNEL"
 The following list provides a name and short description for variables
@@ -730,6 +746,7 @@ filter, or both.
 .Bl -tag -width ".Pa /usr/share/examples/etc/make.conf" -compact
 .It Pa /etc/make.conf
 .It Pa /usr/doc/Makefile
+.It Pa /usr/ports/Makefile
 .It Pa /usr/share/examples/etc/make.conf
 .It Pa /usr/share/mk/sys.mk
 .It Pa /usr/src/Makefile

share/man/man7/build.7

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd March 18, 2011
+.Dd June 16, 2011
 .Dt BUILD 7
 .Os
 .Sh NAME
@@ -517,6 +517,10 @@ target.
 If set, the update process does not update the Ports tree as part of the
 .Dq make update
 target.
+.It Va NO_WWWUPDATE
+If set, the update process does not update the www tree as part of the
+.Dq make update
+target.
 .El
 .Pp
 Builds under directory