add note about commands to use when searching for missing deps

Author: cognifloyd

st2common/BUILD

@@ -37,4 +37,12 @@ st2_component_python_distribution(
             "noop": "st2common.rbac.backends.noop:NoOpRBACBackend",
         },
     },
+    dependencies=[
+    ],
+    # commands helpful in inspecting the dependencies (the "=(...)" is zsh syntax)
+    #   python files under st2common that will not be included in the wheel
+    #     comm -13 =(./pants dependencies --transitive st2common:st2common | grep -v -e : -e __init__.py | grep st2common/st2common | sort) =(find st2common/st2common -name '*.py' -and -not -name '__init__.py' | sort)
+    #
+    #   python files required by other wheels that are missing from st2common
+    #     comm -13 =(./pants dependencies --transitive st2common:st2common | grep st2common/st2common | sort) =(./pants list --filter-target-type=python_distribution --filter-address-regex=-st2common:st2common :: | xargs ./pants dependencies --transitive | grep st2common/st2common | sort)
 )