From 0feb2b93424385e1e663df6b602808b38c77bc74 Mon Sep 17 00:00:00 2001
From: Tianon Gravi <admwiggin@gmail.com>
Date: Wed, 16 Nov 2022 15:23:34 -0800
Subject: [PATCH] Fix depth check

---
 scripts/github-actions/generate.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/github-actions/generate.sh b/scripts/github-actions/generate.sh
index 0ddfb0f..9562761 100755
--- a/scripts/github-actions/generate.sh
+++ b/scripts/github-actions/generate.sh
@@ -117,12 +117,13 @@ for tag in $tags; do
 		'
 	)"
 
-	if parent="$(bashbrew parents "$bashbrewImage" | grep "^${tag%%:*}:")" && [ -n "$parent" ]; then
+	if parent="$(bashbrew parents --depth=1 "$bashbrewImage" | grep "^${tag%%:*}:")" && [ -n "$parent" ]; then
 		if [ "$(wc -l <<<"$parent")" -ne 1 ]; then
 			echo >&2 "error: '$tag' has multiple parents in the same repository and this script can't handle that yet!"
 			echo >&2 "$parent"
 			exit 1
 		fi
+		parent="$(bashbrew parents "$bashbrewImage" | grep "^${tag%%:*}:" | tail -1)" # get the "ultimate" this-repo parent
 		parentBashbrewImage="${parent##*/}" # account for BASHBREW_NAMESPACE being set
 		parent="$(bashbrew list --uniq "$parentBashbrewImage")" # normalize
 		parentMeta="${metas["$parent"]}"