tree c75259ab4aec670051dc6e35f38e8e929df0121d
parent 3c855e612eba4a7c6f76c81a6c9f08ad1f438675
author Takuto Ikuta <tikuta@google.com> 1772728615 +0900
committer GN LUCI <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1772729186 -0800

Add --error-limit flag to control error output count

This introduces a new command-line flag --error-limit to allow users to
specify the maximum number of errors displayed. It sets a default limit
of 10 errors when the flag is not provided, preventing terminal flooding
during builds with numerous errors.

This change also modifies Err::PrintToStdout() and
Err::PrintNonfatalToStdout() to return a boolean indicating whether the
error was actually printed or suppressed. This allows callers to
gracefully handle cases where the error output is suppressed by the
limit, avoiding unnecessary formatting additions such as empty newlines
or separators.

Change-Id: I3b53be631575a4b444c75e4762353fa4eb8f113a
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/21380
Commit-Queue: Takuto Ikuta <tikuta@google.com>
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>