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-rw-r--r--danger/metadata/Dangerfile7
1 files changed, 7 insertions, 0 deletions
diff --git a/danger/metadata/Dangerfile b/danger/metadata/Dangerfile
index 51fc9e6bfca..1adca152736 100644
--- a/danger/metadata/Dangerfile
+++ b/danger/metadata/Dangerfile
@@ -23,3 +23,10 @@ has_pick_into_stable_label = gitlab.mr_labels.find { |label| label.start_with?('
if gitlab.branch_for_base != "master" && !has_pick_into_stable_label
warn "Most of the time, merge requests should target `master`. Otherwise, please set the relevant `Pick into X.Y` label."
end
+
+if gitlab.mr_json['title'].length > 72
+ warn 'The title of this merge request is longer than 72 characters and ' \
+ 'would violate our commit message rules when using the Squash on Merge ' \
+ 'feature. Please consider adjusting the title, or rebase the ' \
+ "commits manually and don't use Squash on Merge."
+end