[dfrankland]

Part of TRUNK-18881. Closes TRUNK-22405. Stacked on #1273 (which is stacked on #1266).

--output-format json (or TRUNK_OUTPUT_FORMAT=json) on upload and validate prints the summary on stdout as the same JSON that --summary-output-file writes, so it can be piped into other tools.

• The flag is in its own OutputFormatArgs, used only by upload and validate. test doesn't get it: it includes UploadArgs, and its test command writes to stdout.
• In JSON mode stdout carries only the JSON. Logs, notices and progress stay on stderr. The JSON is printed after the renderer has finished.
• A run that fails outright still prints its JSON error object on stdout (and its text error on stderr).
• Exit codes don't change.
• The summary schema now covers the validate report ("type": "VALIDATE"), so summary-output-schema describes it too.

A run stopped by SIGINT/SIGTERM prints nothing on stdout, as in text mode.

Tests

New integration tests in cli/tests check that stdout parses as JSON (and matches --summary-output-file), that the exit code and exitCode agree, and that logs, notices and a progress message (mock API slowed to 3s) go to stderr, for upload, a failed upload via TRUNK_OUTPUT_FORMAT, and validate with and without errors.

🤖 Generated with Claude Code

[trunk-staging-io]

   

Failed Test	Failure Summary	Logs
pending_quarantine_test should be quarantined when run with variant	A test marked as pending was expected to fail but unexpectedly passed.	Logs ↗︎
variant_quarantine_test should be quarantined when run with variant	The quarantine test failed because it expected 2 + 2 to equal 5, but the result was 4.	Logs ↗︎

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 95.91837% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.94%. Comparing base (f5fd8c5) to head (4e5a468).

Files with missing lines	Patch %	Lines
cli/src/main.rs	95.91%	2 Missing ⚠️

Additional details and impacted files

@@                                            Coverage Diff                                             @@
##           dylan/trunk-22404-print-the-cli-summary-on-stdout-and-remove-endoutput    #1277      +/-   ##
==========================================================================================================
+ Coverage                                                                   82.75%   85.94%   +3.19%     
==========================================================================================================
  Files                                                                          85       85              
  Lines                                                                       19105    19258     +153     
==========================================================================================================
+ Hits                                                                        15811    16552     +741     
+ Misses                                                                       3294     2706     -588     

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[trunk-io]

😎 Stack merged successfully - details.