adding in license meta

InvenTree/plugin/integration.py

@@ -275,6 +275,7 @@ class IntegrationPluginBase(MixinBase, plugin.InvenTreePlugin):
     PUBLISH_DATE = None
     VERSION = None
     WEBSITE = None
+    LICENSE = None
 
     def __init__(self):
         super().__init__()
@@ -347,6 +348,12 @@ class IntegrationPluginBase(MixinBase, plugin.InvenTreePlugin):
         name = getattr(self, 'WEBSITE', None)
         return name
 
+    @property
+    def license(self):
+        """returns license of plugin"""
+        license = getattr(self, 'LICENSE', None)
+        return license
+
     @property
     def package_path(self):
         """returns the path to the plugin"""

InvenTree/plugin/test_integration.py

@@ -166,6 +166,7 @@ class IntegrationPluginBaseTests(TestCase):
             DESCRIPTION = 'A description'
             VERSION = '1.2.3a'
             WEBSITE = 'http://aa.bb/cc'
+            LICENSE = 'MIT'
 
         self.plugin_name = NameIntegrationPluginBase()
 
@@ -206,3 +207,8 @@ class IntegrationPluginBaseTests(TestCase):
         self.assertEqual(self.plugin.website, None)
         self.assertEqual(self.plugin_simple.website, None)
         self.assertEqual(self.plugin_name.website, 'http://aa.bb/cc')
+
+        # license
+        self.assertEqual(self.plugin.license, None)
+        self.assertEqual(self.plugin_simple.license, None)
+        self.assertEqual(self.plugin_name.license, 'MIT')