script to compare all branches by date of most recent commit. silences `stderr` because otherwise git tells you every time it switches branches

compare_branches.bash

function silencing_stderr() {
  $* 2>/dev/null
}

function branch_names() {
  git br | awk '{print $1}' | grep -v '*' | xargs
}

function most_recent_commit() {
  git log . | grep "Date: " | cut -c 9- | head -1
}

for branch_name in $(branch_names)
do
  silencing_stderr git co $branch_name
  echo $branch_name $(most_recent_commit)
done

git co master

this also works:

git for-each-ref --format='%(committerdate) %(refname:short)'

https://twitter.com/wickedshimmy/status/390291332587323392