juju-deployer logs ERROR messages when called from mojo, then does the right thing anyway

[Thomi Richards]

This is reproducible with any of the mojo specs in lp:~tanuki/canonical-mojo-specs/trunk - alld the specs in ols/* reproduce this behavior.

What happens is that mojo creates a local juju charm repository, but juju-deployer errors if the charm is not specified either by:

* a cs: prefix
* a local: prefix
* an absolute path
* a CVS URI

However, juju does the right thing here, so the error message is spurious. These error messages make it extremely hard to figure out what's actually going wrong when a deployment fails, since it's hard to spot the one legitimate error amongst the many spurious errors.

Example output:

~~~
2015-09-16 16:25:42 [INFO] Running juju-deployer
2015-09-16 16:25:42 [INFO] Running: python /usr/bin/juju-deployer -c /srv/mojo/ols-results/trusty/w7/charms/ols/mojo-ols-spec-manager/relations -c /srv/mojo/ols-results/trusty/w7/charms/local.cfg -s 60 -d sn
appy-product-integration -W -u
2015-09-16 16:30:27 [INFO] 2015-09-16 16:25:43 [DEBUG] deployer.cli: Using runtime GoEnvironment on local
2015-09-16 16:25:43 [INFO] deployer.cli: Starting deployment of snappy-product-integration
2015-09-16 16:25:43 [DEBUG] deployer.import: Getting charms...
2015-09-16 16:25:43 [ERROR] deployer.charm: Service: haproxy has neither charm url or branch specified
2015-09-16 16:25:43 [ERROR] deployer.charm: Service: conn-check has neither charm url or branch specified
2015-09-16 16:25:43 [ERROR] deployer.charm: Service: nrpe-external-master has neither charm url or branch specified
2015-09-16 16:25:43 [ERROR] deployer.charm: Service: logstash-forwarder has neither charm url or branch specified
2015-09-16 16:25:43 [ERROR] deployer.charm: Service: apache2 has neither charm url or branch specified
2015-09-16 16:25:43 [ERROR] deployer.charm: Service: storage has neither charm url or branch specified
2015-09-16 16:25:43 [ERROR] deployer.charm: Service: postgresql has neither charm url or branch specified
2015-09-16 16:25:43 [ERROR] deployer.charm: Service: spec-manager has neither charm url or branch specified
2015-09-16 16:25:43 [DEBUG] deployer.deploy: Resolving configuration
2015-09-16 16:25:43 [DEBUG] deployer.env: Connecting to environment...
2015-09-16 16:25:43 [DEBUG] deployer.env: Connected to environment
2015-09-16 16:25:43 [INFO] deployer.import: Deploying services...

~~~