Make them my own.

1 files changed, 21 insertions, 0 deletions

diff --git a/parent-prune-empty-first b/parent-prune-empty-first
new file mode 100755
index 0000000..c9d73df
--- /dev/null
+++ b/parent-prune-empty-first
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+# Usage: git filter-branch -f --parent-filter ~/git-filters/parent-prune-empty-first HEAD
+
+has_empty_tree() {
+	[[ "$(git rev-parse "${1}^{tree}")" == 4b825dc642cb6eb9a060e54bf8d69288fbee4904 ]]
+}
+
+has_parents() {
+	git rev-parse "${1}^" &>/dev/null
+}
+
+for parent in $(cat); do
+	if [[ "$parent" == '-p' ]]; then
+		continue
+	fi
+	if has_empty_tree "$parent" && ! has_parents "$parent"; then
+		continue
+	fi
+	printf ' -p %s ' "$parent"
+done
+echo