Add helper script for finding potentially stale remote branches

Can be used to clean out old cruft no longer needed

1 files changed, 37 insertions, 0 deletions

diff --git a/scripts/find-stale-remote-branches.sh b/scripts/find-stale-remote-branches.sh
new file mode 100755
index 0000000000..816db2f77c
--- /dev/null
+++ b/scripts/find-stale-remote-branches.sh
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+#
+# Find and print all remote branches not commited to in over two months.
+# Prints grouped by commiter email. Used to detect stale branches that
+# could potentially be removed.
+
+TWO_MONTHS=$((60 * 60 * 24 * 60))
+
+two_months_ago=$(($(date +%s) - TWO_MONTHS))
+
+all_branches=$(git branch --remote | grep -v HEAD)
+old_branches=()
+# Filter out branches touched recently
+for branch in $all_branches; do
+    branch_commit_timestamp=$(git show -s --format=%at "$branch")
+    if [[ $branch_commit_timestamp -lt $two_months_ago ]]; then
+        old_branches+=("$branch")
+    else
+        echo "Skipping too new branch $branch"
+    fi
+done
+
+echo ""
+echo "=== Stale branches? ==="
+echo ""
+
+authors=$(for branch in "${old_branches[@]}"; do git show -s --format="%ae" "$branch"; done | sort -u)
+
+for author in $authors; do
+    echo "# $author #"
+    for branch in "${old_branches[@]}"; do
+        if [[ $(git show -s --format="%ae" "$branch") == "$author" ]]; then
+            echo "  $branch"
+        fi
+    done
+    echo ""
+done