Parsing a long list of environment files and failing due to human error leaves the user unable to understand where the error was.
In my case I passed 7 environment files and some were custom built. I expect an error when I did something wrong but the error I got can be more useful:
ERROR:
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File "/usr/lib/python2.7/site-packages/heatclient/common/template_utils.py", line 166, in process_multiple_environments_and_files
template_url)
File "/usr/lib/python2.7/site-packages/heatclient/common/template_utils.py", line 188, in process_environment_and_files
env = environment_format.parse(raw_env)
File "/usr/lib/python2.7/site-packages/heatclient/common/environment_format.py", line 42, in parse
raise ValueError(_('environment has wrong section "%s"') % param)
ValueError: environment has wrong section "outputs"
1. what 'outputs' have to do with it? none of those files had 'outputs'.
2. which environment file failed parsing?
Tested on killo
$ heat --version
0.6.0
So, this is a heatclient bug, and we need to output something like "you appear to be passing a heat template instead of an environment file"
The "outputs" part is because you're doing -e some_file.yaml, an some_file.yaml has a section called "outputs" in it, e.g it's a heat template.