revgum

FROM rust:alpine

RUN apk add --no-cache \
    bash \
    binutils-gold \
    ca-certificates \
    clang \
    curl \
    g++ \
    git \

revgum

→ git remote prune origin
→ git branch --merged | grep -v "\*" | xargs -n 1 git branch -d

# Remember to do this from the master branch
# If you run it from a feature branch the master branch gets deleted.
→ git branch --merged | grep -v "\*" | xargs -n 1 git branch -d
Deleted branch master (was 644eb76).

You can recheckout master branch
→ git checkout -b master origin/master