PMA-29082: Add file-based output mode to avoid exceeding GitHub Actions output limits#1
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michalszelagsonos merged 8 commits intosonos-mainfrom Mar 25, 2026
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…tput limits Add `output_to_file` input that redirects all output to files and returns file paths as step outputs instead of content. When enabled with `gemini_debug: true`, debug output goes to files without console streaming, keeping GITHUB_OUTPUT well under the ~1MB platform limit. New outputs: `output_mode` (content/file) and `artifacts_dir` (path to gemini-artifacts/). Full backwards compatibility when not set. Ref: google-github-actions#479
Check output_to_file first, independently of debug mode. The debug flag only controls whether --debug is passed to gemini CLI. Also extract command args to avoid duplicating the gemini invocation. Ref: google-github-actions#479
Run `npm run docs` to update autogenerated sections with: - output_to_file input - output_mode and artifacts_dir outputs Ref: google-github-actions#479
The GEMINI_ARGS variable caused word-splitting on the multi-line PROMPT
string, breaking the gemini CLI argument parsing. Use a separate
DEBUG_FLAG variable instead and keep "${PROMPT}" quoted in each
invocation.
Ref: google-github-actions#479
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carolynkongsonos
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Mar 23, 2026
chriscelebisonos
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Mar 23, 2026
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JIRA
Description
Add an
output_to_fileboolean input to therun-gemini-cliGitHub Action that redirects all output to files and returns file paths as step outputs instead of content. This avoids exceeding the ~1MBGITHUB_OUTPUTlimit whengemini_debug: trueis enabled with recent gemini-cli versions (post-0.25.x) that produce significantly more diagnostic output (auth info, API request/error counts, retry events, loop detection).Changes
New input (
output_to_file, defaultfalse):true, redirects stdout/stderr to files (notee/console streaming)gemini-artifacts/stdout.log,gemini-artifacts/stderr.log) assummaryanderroroutputs instead of contentgemini_debug— the debug flag only controls whether--debugis passed to the CLINew outputs:
output_mode:"content"(default) or"file"— lets callers detect the mode programmaticallyartifacts_dir: absolute path togemini-artifacts/directoryRefactored execution block:
DEBUG_FLAGto avoid duplicating the gemini CLI invocation across branchesoutput_to_fileis checked first, independently ofgemini_debugtee-based streaming only applies whenoutput_to_fileis false andgemini_debugis trueBackwards compatibility: When
output_to_fileis not set orfalse, behavior is identical to today.These changes mirror upstream PR #480 applied to the Sonos fork.
Testing