Add ShowNode and CompiledNode to PrintEvent as special case, quiet-compatible events

[dbeatty10]

for dbt-labs/dbt-core#9840 (along with dbt-labs/dbt-core#9958)

Problem

dbt --quiet show ... doesn't print anything to stdout.

There are users that would like:

• the output of dbt show to be valid JSON containing just the data and no logs.
• the output of dbt compile to be valid SQL without any logs.

It would make sense for --quiet to suppress the logs but allow the main content to pass through. But instead, it suppresses all logging for dbt show and dbt compile.

Solution

For the --quiet CLI (or DBT_QUIET environment variable), allow the main content to pass through for dbt show and dbt compile. But still suppress the rest of the logs.

Extending the work in #130 to apply to the ShowNode and CompiledNode events accomplishes this.

🎩

$ dbt show -s show_me --output json --quiet

{
  "node": "show_me",
  "show": [
    {
      "jerry_maguire": "Show me the JSON!"
    }
  ]
}

$ dbt compile -s show_me --output json --quiet

{
  "node": "show_me",
  "compiled": "select 'Show me the JSON!' as jerry_maguire"
}

$ dbt show -s show_me --quiet

Previewing node 'show_me':
| jerry_maguire     |
| ----------------- |
| Show me the JSON! |

$ dbt compile -s show_me --quiet

Compiled node 'show_me' is:
select 'Show me the JSON!' as jerry_maguire

Note

Once dbt-labs/dbt-core#9958 is implemented, the "Previewing node 'show_me':" and "Compiled node 'show_me' is:" portions will be dropped.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have signed the CLA
• I have run this code in development and it appears to resolve the stated issue
• I have opened an issue to add/update docs, or docs changes are not required/relevant for this PR
• I have run changie new to create a changelog entry

[github-actions]

Thank you for your pull request! We could not find a changelog entry for this change. For details on how to document a change, see the contributing guide.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.48%. Comparing base (5a401a9) to head (080cc9a).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #216   +/-   ##
=======================================
  Coverage   68.48%   68.48%           
=======================================
  Files          52       52           
  Lines        3389     3389           
=======================================
  Hits         2321     2321           
  Misses       1068     1068           

Flag	Coverage Δ
unit	68.48% <100.00%> (ø)

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[aranke]

LGTM!