// Run checks to see if there is already an environments.yaml file. In one does not exist already,
// a boilerplate version is created so that the user can edit it to get started.
func (c *InitCommand) Run(context *cmd.Context) error {
out := context.Stdout
config := environs.BoilerplateConfig()
if c.Show {
fmt.Fprint(out, config)
return nil
}
_, err := environs.ReadEnvirons("")
if err == nil && !c.WriteFile {
return errJujuEnvExists
}
if err != nil && !os.IsNotExist(err) {
return err
}
filename, err := environs.WriteEnvirons("", config)
if err != nil {
return fmt.Errorf("A boilerplate environment configuration file could not be created: %s", err.Error())
}
fmt.Fprintf(out, "A boilerplate environment configuration file has been written to %s.\n", filename)
fmt.Fprint(out, "Edit the file to configure your juju environment and run bootstrap.\n")
return nil
}
func (*BoilerplateConfigSuite) TestBoilerPlateGeneration(c *C) {
defer config.SetJujuHome(config.SetJujuHome(c.MkDir()))
boilerplate_text := environs.BoilerplateConfig()
_, err := environs.ReadEnvironsBytes([]byte(boilerplate_text))
c.Assert(err, IsNil)
}