rrs_maintainer_history: add --fullreload option

Add an option that deletes all maintainer history records for the
current layer branch so that they can then be reloaded from scratch.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

rrs/migrations/0009_rmh_layerbranch.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('layerindex', '0010_add_dependencies'),
+        ('rrs', '0008_upgrade_info'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='recipemaintainerhistory',
+            name='layerbranch',
+            field=models.ForeignKey(blank=True, null=True, to='layerindex.LayerBranch'),
+        ),
+    ]

rrs/models.py

@@ -210,6 +210,7 @@ class RecipeMaintainerHistory(models.Model):
     date = models.DateTimeField(db_index=True)
     author = models.ForeignKey(Maintainer)
     sha1 = models.CharField(max_length=64, unique=True)
+    layerbranch = models.ForeignKey(LayerBranch, blank=True, null=True)
 
     @staticmethod
     def get_last():

rrs/tools/rrs_maintainer_history.py

@@ -88,6 +88,8 @@ def maintainer_history(options, logger):
         for maintplan in maintplans:
             for item in maintplan.maintenanceplanlayerbranch_set.all():
                 layerbranch = item.layerbranch
+                if options.fullreload and not options.dry_run:
+                    RecipeMaintainerHistory.objects.filter(layerbranch=layerbranch).delete()
                 urldir = str(layerbranch.layer.get_fetch_dir())
                 repodir = os.path.join(fetchdir, urldir)
                 layerdir = os.path.join(repodir, layerbranch.vcs_subdir)
@@ -115,7 +117,7 @@ def maintainer_history(options, logger):
 
                             author = Maintainer.create_or_update(author_name, author_email)
                             rms = RecipeMaintainerHistory(title=title, date=date, author=author,
-                                    sha1=commit)
+                                    sha1=commit, layerbranch=layerbranch)
                             rms.save()
 
                             utils.runcmd("git checkout %s -f" % commit,
@@ -177,6 +179,10 @@ def maintainer_history(options, logger):
 if __name__=="__main__":
     parser = optparse.OptionParser(usage = """%prog [options]""")
 
+    parser.add_option("--fullreload",
+            help="Reload upgrade data from scratch",
+            action="store_true", dest="fullreload", default=False)
+
     parser.add_option("-d", "--debug",
             help = "Enable debug output",
             action="store_const", const=logging.DEBUG, dest="loglevel",