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Build environment: log stderr #12539

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Merged
merged 1 commit into from
Oct 30, 2025
Merged

Build environment: log stderr #12539

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17 changes: 11 additions & 6 deletions readthedocs/doc_builder/environments.py
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,15 @@
log = structlog.get_logger(__name__)


def _truncate_output(output):
if output is None:
return ""
output_lines = output.split("\n")
if len(output_lines) <= 20:
return output
return "\n".join(output_lines[:10] + [" ..Output Truncated.. "] + output_lines[-10:])


class BuildCommand(BuildCommandResultMixin):
"""
Wrap command execution for execution in build environments.
Expand Down Expand Up @@ -548,15 +557,11 @@ def run_command_class(
if build_cmd.failed:
if warn_only:
msg = "Command failed"
build_output = ""
if build_cmd.output:
build_output += "\n".join(build_cmd.output.split("\n")[:10])
build_output += "\n ..Output Truncated.. \n"
build_output += "\n".join(build_cmd.output.split("\n")[-10:])
log.warning(
msg,
command=build_cmd.get_command(),
output=build_output,
output=_truncate_output(build_cmd.output),
stderr=_truncate_output(build_cmd.error),
exit_code=build_cmd.exit_code,
project_slug=self.project.slug if self.project else "",
version_slug=self.version.slug if self.version else "",
Expand Down