Move cmd_build to a separate plugin

It's such a small amount of code, it's possibly not worth it,
but now all commands are in plugins.

3 files changed, 48 insertions, 17 deletions

diff --git a/morphlib/app.py b/morphlib/app.py
index 6bda8bf8..4e6a66e4 100755
--- a/morphlib/app.py
+++ b/morphlib/app.py
@@ -195,23 +195,6 @@ class Morph(cliapp.Application):
                       category=DeprecationWarning)
         return self.create_source_pool(*args)
 
-    def cmd_build(self, args):
-        '''Build a binary from a morphology.
-
-        Command line arguments are the repository, git tree-ish reference,
-        and morphology filename. Morph takes care of building all dependencies
-        before building the morphology. All generated binaries are put into the
-        cache.
-
-        (The triplet of command line arguments may be repeated as many
-        times as necessary.)
-
-        '''
-
-        build_command = morphlib.buildcommand.BuildCommand(self)
-        build_command = self.hookmgr.call('new-build-command', build_command)
-        build_command.build(args)
-
     def _resolveref(self, lrc, rrc, reponame, ref, update=True):
         '''Resolves the sha1 of the ref in reponame and returns it.
 
diff --git a/morphlib/plugins/build_plugin.py b/morphlib/plugins/build_plugin.py
new file mode 100644
index 00000000..7ad254cf
--- /dev/null
+++ b/morphlib/plugins/build_plugin.py
@@ -0,0 +1,47 @@
+# Copyright (C) 2012  Codethink Limited
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+
+import cliapp
+
+import morphlib
+
+
+class BuildPlugin(cliapp.Plugin):
+
+    def enable(self):
+        self.app.add_subcommand('build', self.build,
+                                arg_synopsis='(REPO REF FILENAME)...')
+
+    def disable(self):
+        pass
+
+    def build(self, args):
+        '''Build a binary from a morphology.
+
+        Command line arguments are the repository, git tree-ish reference,
+        and morphology filename. Morph takes care of building all dependencies
+        before building the morphology. All generated binaries are put into the
+        cache.
+
+        (The triplet of command line arguments may be repeated as many
+        times as necessary.)
+
+        '''
+
+        build_command = morphlib.buildcommand.BuildCommand(self.app)
+        build_command = self.app.hookmgr.call('new-build-command',
+                                              build_command)
+        build_command.build(args)
diff --git a/without-test-modules b/without-test-modules
index 91fcd117..aaa796f7 100644
--- a/without-test-modules
+++ b/without-test-modules
@@ -14,4 +14,5 @@ morphlib/plugins/update_gits_plugin.py
 morphlib/plugins/trebuchet_plugin.py
 morphlib/plugins/branch_and_merge_plugin.py
 morphlib/buildcommand.py
+morphlib/plugins/build_plugin.py