22 │ [alias]
23 │ gone = "!f() { git fetch -p; default=$(git symbolic-ref --quiet refs/remotes/origin/HEAD 2>/dev/null | sed 's@^re
│ fs/remotes/origin/@@'); default=${default:-main}; git for-each-ref --format '%(refname:short) %(upstream:track)' refs
│ /heads/ | awk '$2 == \"[gone]\" {print $1}' | xargs -r -n1 git branch -D; current=$(git symbolic-ref --quiet --short
│ HEAD || echo); git for-each-ref --format '%(refname:short)' refs/heads/ | while read br; do [ \"$br\" = \"$default\"
│ ] && continue; [ \"$br\" = \"$current\" ] && continue; mb=$(git merge-base \"$default\" \"$br\" 2>/dev/null) || conti
│ nue; tree=$(git rev-parse \"$br^{tree}\"); synth=$(git commit-tree \"$tree\" -p \"$mb\" -m _gone_check_); case \"$(gi
│ t cherry \"$default\" \"$synth\")\" in -*) git branch -D \"$br\";; esac; done; }; f"