func (s *JujuConnSuite) AddTestingCharm(c *gc.C, name string) *state.Charm {
ch := testcharms.Repo.CharmDir(name)
ident := fmt.Sprintf("%s-%d", ch.Meta().Name, ch.Revision())
curl := charm.MustParseURL("local:quantal/" + ident)
repo, err := charmrepo.InferRepository(
curl.Reference(),
charmrepo.NewCharmStoreParams{},
testcharms.Repo.Path())
c.Assert(err, jc.ErrorIsNil)
sch, err := PutCharm(s.State, curl, repo, false)
c.Assert(err, jc.ErrorIsNil)
return sch
}
// resolveCharmURL resolves the given charm URL string
// by looking it up in the appropriate charm repository.
// If it is a charm store charm URL, the given csParams will
// be used to access the charm store repository.
// If it is a local charm URL, the local charm repository at
// the given repoPath will be used. The given configuration
// will be used to add any necessary attributes to the repo
// and to resolve the default series if possible.
//
// resolveCharmURL also returns the charm repository holding
// the charm.
func resolveCharmURL(curlStr string, csParams charmrepo.NewCharmStoreParams, repoPath string, conf *config.Config) (*charm.URL, charmrepo.Interface, error) {
ref, err := charm.ParseReference(curlStr)
if err != nil {
return nil, nil, errors.Trace(err)
}
repo, err := charmrepo.InferRepository(ref, csParams, repoPath)
if err != nil {
return nil, nil, errors.Trace(err)
}
repo = config.SpecializeCharmRepo(repo, conf)
if ref.Series == "" {
if defaultSeries, ok := conf.DefaultSeries(); ok {
ref.Series = defaultSeries
}
}
if ref.Schema == "local" && ref.Series == "" {
possibleURL := *ref
possibleURL.Series = "trusty"
logger.Errorf("The series is not specified in the environment (default-series) or with the charm. Did you mean:\n\t%s", &possibleURL)
return nil, nil, errors.Errorf("cannot resolve series for charm: %q", ref)
}
if ref.Series != "" && ref.Revision != -1 {
// The URL is already fully resolved; do not
// bother with an unnecessary round-trip to the
// charm store.
curl, err := ref.URL("")
if err != nil {
panic(err)
}
return curl, repo, nil
}
curl, err := repo.Resolve(ref)
if err != nil {
return nil, nil, errors.Trace(err)
}
return curl, repo, nil
}