wic: Print error if a partition specifies an invalid --source

If a partition specified in a .wks file specifies a nonexistent
--source, print an error to that effect and exit.  The error text also
points the user to a command listing valid sources, and help on adding
a new source plugin.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

diff --git a/scripts/lib/mic/kickstart/custom_commands/partition.py b/scripts/lib/mic/kickstart/custom_commands/partition.py
index 6b575c0e8d9324154124a35a80313b6f0667d4cd..75ad6ad103a06b2afe578125e0e82fde0b483cc0 100644 (file)
--- a/scripts/lib/mic/kickstart/custom_commands/partition.py
+++ b/scripts/lib/mic/kickstart/custom_commands/partition.py
@@ -130,6 +130,11 @@ class Wic_PartData(Mic_PartData):
                                              native_sysroot)
             return
 
+        plugins = pluginmgr.get_source_plugins()
+
+        if self.source not in plugins:
+            msger.error("The '%s' --source specified for %s doesn't exist.\n\tSee 'wic list source-plugins' for a list of available --sources.\n\tSee 'wic help source-plugins' for details on adding a new source plugin." % (self.source, self.mountpoint))
+
         self._source_methods = pluginmgr.get_source_plugin_methods(self.source, partition_methods)
         self._source_methods["do_configure_partition"](self, cr, cr_workdir,
                                                        oe_builddir,