manual: update download helper information

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

docs/manual/adding-packages-gentargets.txt

@@ -133,9 +133,12 @@ information is (assuming the package name is +libfoo+) :
 * +LIBFOO_VERSION+, mandatory, must contain the version of the
   package. Note that if +HOST_LIBFOO_VERSION+ doesn't exist, it is
   assumed to be the same as +LIBFOO_VERSION+. It can also be a
-  Subversion or Git branch or tag, for packages that are fetched
+  revision number, branch or tag for packages that are fetched
   directly from their revision control system. +
-  Example: +LIBFOO_VERSION = 0.1.2+
+  Examples: +
+    +LIBFOO_VERSION = 0.1.2+ +
+    +LIBFOO_VERSION = cb9d6aa9429e838f0e54faa3d455bcbab5eef057+ +
+    +LIBFOO_VERSION = stable+
 
 * +LIBFOO_SOURCE+ may contain the name of the tarball of
   the package. If +HOST_LIBFOO_SOURCE+ is not specified, it
@@ -154,28 +157,37 @@ information is (assuming the package name is +libfoo+) :
   after extraction.
 
 * +LIBFOO_SITE+ may contain the Internet location of the package. It
-  can either be the HTTP or FTP location of a tarball, or the URL of a
-  Git or Subversion repository (see +LIBFOO_SITE_METHOD+ below). If
-  +HOST_LIBFOO_SITE+ is not specified, it defaults to
+  can either be the HTTP, FTP or SCP location of a tarball, or the URL
+  of a Git, Subversion, Mercurial or Bazaar repository (see
+  +LIBFOO_SITE_METHOD+ below). +
+  SCP URLs should be of the form +scp://[user@]host:filepath+. Note
+  that filepath is relative to the user's home directory, so you may want
+  to prepend the path with a slash for absolute paths:
+  +scp://[user@]host:/absolutepath+. +
+  If +HOST_LIBFOO_SITE+ is not specified, it defaults to
   +LIBFOO_SITE+. If none are specified, then the location is assumed
   to be
   +http://$$(BR2_SOURCEFORGE_MIRROR).dl.sourceforge.net/sourceforge/packagename+. +
-  Examples: +LIBFOO_SITE=http://www.libfoosoftware.org/libfoo+ +
-  +LIBFOO_SITE=http://svn.xiph.org/trunk/Tremor/+
+  Examples: +
+    +LIBFOO_SITE=http://www.libfoosoftware.org/libfoo+ +
+    +LIBFOO_SITE=http://svn.xiph.org/trunk/Tremor/+ +
+    +LIBFOO_SITE=git://github.com/kergoth/tslib.git+
 
 * +LIBFOO_SITE_METHOD+ may contain the method to fetch the package
   source code. It can either be +wget+ (for normal FTP/HTTP downloads
-  of tarballs), +svn+, +git+ or +bzr+.  When not specified, it is
-  guessed from the URL given in +LIBFOO_SITE+: +svn://+, +git://+ and
-  +bzr://+ URLs will use the +svn+, +git+ and +bzr+ methods
+  of tarballs), +scp+ (for downloads over SSH with scp), +svn+, +git+,
+  +hg+ or +bzr+.  When not specified, it is guessed from the URL given
+  in +LIBFOO_SITE+: +scp://+, +svn://+, +git://+ and
+  +bzr://+ URLs will use the +scp+, +svn+, +git+ and +bzr+ methods
   respectively. All other URL-types will use the +wget+ method. So for
   example, in the case of a package whose source code is available
-  through Subversion repository on HTTP, one 'must' specifiy
-  +LIBFOO_SITE_METHOD=svn+. For +svn+ and +git+ methods, what
-  Buildroot does is a checkout/clone of the repository which is then
-  tarballed and stored into the download cache. Next builds will not
-  checkout/clone again, but will use the tarball directly. When
-  +HOST_LIBFOO_SITE_METHOD+ is not specified, it defaults to the value
+  through a Subversion repository on HTTP, one 'must' specifiy
+  +LIBFOO_SITE_METHOD=svn+. Similarly, for Mercurial repositories, one
+  'must' specify +LIBFOO_SITE_METHOD=hg+. For +svn+, +git+, +hg+ and
+  +bzr+ methods, what Buildroot does is a checkout/clone of the repository
+  which is then tarballed and stored into the download cache. Next
+  builds will not checkout/clone again, but will use the tarball directly.
+  When +HOST_LIBFOO_SITE_METHOD+ is not specified, it defaults to the value
   of +LIBFOO_SITE_METHOD+. See +package/multimedia/tremor/+ for an
   example.