dbt seed --show fails

[velppa]

Issue

Issue description

dbt seed --show command fails with 2 exit code.

Results

❯ dbt seed --show
Found 25 models, 8 tests, 0 archives, 0 analyses, 109 macros, 2 operations, 1 seed files

15:12:45 | Concurrency: 1 threads (target='default')
15:12:45 |
15:12:45 | 1 of 1 START seed file ANALYTICS_PROD.cancellation_coeff............. [RUN]
15:12:47 | 1 of 1 OK loaded seed file ANALYTICS_PROD.cancellation_coeff......... [INSERT 14 in 1.74s]
15:12:47 |
15:12:47 | Finished running 1 seeds in 5.03s.
Encountered an error:
'agate_table'

❯ echo $status
2

In the logs I see this:

2019-02-12 10:58:28,566 (MainThread): Sending event: {'category': 'dbt', 'action': 'invocation', 'label': 'end', 'context': [<snowplow_tracker.self_describing_json.SelfDescribingJson object at 0x10bcc7e48>, <snowplow_tracker.self_describing_json.SelfDescribingJson object at 0x108697518>, <snowplow_tracker.self_describing_json.SelfDescribingJson object at 0x10bca7358>]}
2019-02-12 10:58:29,028 (MainThread): Flushing usage events
2019-02-12 10:58:29,028 (MainThread): Encountered an error:
2019-02-12 10:58:29,029 (MainThread): 'agate_table'
2019-02-12 10:58:29,029 (MainThread): Traceback (most recent call last):
  File "/usr/local/Cellar/dbt/0.12.2/libexec/lib/python3.7/site-packages/dbt/main.py", line 77, in main
    results, succeeded = handle_and_check(args)
  File "/usr/local/Cellar/dbt/0.12.2/libexec/lib/python3.7/site-packages/dbt/main.py", line 151, in handle_and_check
    task, res = run_from_args(parsed)
  File "/usr/local/Cellar/dbt/0.12.2/libexec/lib/python3.7/site-packages/dbt/main.py", line 207, in run_from_args
    results = run_from_task(task, cfg, parsed)
  File "/usr/local/Cellar/dbt/0.12.2/libexec/lib/python3.7/site-packages/dbt/main.py", line 215, in run_from_task
    result = task.run()
  File "/usr/local/Cellar/dbt/0.12.2/libexec/lib/python3.7/site-packages/dbt/task/seed.py", line 20, in run
    self.show_tables(results)
  File "/usr/local/Cellar/dbt/0.12.2/libexec/lib/python3.7/site-packages/dbt/task/seed.py", line 42, in show_tables
    self.show_table(result)
  File "/usr/local/Cellar/dbt/0.12.2/libexec/lib/python3.7/site-packages/dbt/task/seed.py", line 26, in show_table
    table = result.node['agate_table']
  File "/usr/local/Cellar/dbt/0.12.2/libexec/lib/python3.7/site-packages/dbt/api/object.py", line 93, in __getitem__
    return self._contents[key]
KeyError: 'agate_table'

System information

The output of dbt --version:

installed version: 0.12.2
   latest version: 0.12.2

Up to date!

The operating system you're running on:
macOS 10.13

The python version you're using (probably the output of python --version)

❯ python --version
Python 3.6.4

Steps to reproduce

I have added a csv file and tried to load it into Snowflake using dbt seed --show command and it failed. dbt seed completes without errors. In dbt_project.yml the configuration looks like this:

data-paths: ["dbt/data"]

[drewbanin]

Thanks @pavel-popov - you're totally right - just reproduced this locally. Should be a quick fix - I'll add this in for 0.13.0!