[Tidy up Git branches] Delete & prune local/remote branches #git

git-tidy.sh

#!/usr/bin/env bash

set -u

########################################################################################################################
# git-tidy
#
# Delete any branch that has been merged into a base branch ('main', 'master', or 'develop')
# unless it's a protected branch or the current branch. Delete both in local and remote.
#
# Usage:
#   $ ./git-tidy
#
# Or if this script (git-tidy, no .sh extension) is in your $PATH, then run:
#   $ git tidy
########################################################################################################################

echo "DELETING MERGED BRANCHES..."
echo ""

base_branches=(main master develop)
current_branch="$(git branch --show-current)"
protected_branches=("${current_branch}" "${base_branches[@]}")
merged_branches=''

# Prune all stale remote tracking branches
git fetch origin --prune

# Get unique array of all branches that have been merged into the base branches
for branch in "${base_branches[@]}"; do
  merged_branches="${merged_branches} $(git branch --merged ${branch} 2>/dev/null | tr -d '*' | tr -d ' ')"
  merged_branches="${merged_branches} $(git branch --merged origin/${branch} 2>/dev/null | tr -d '*' | tr -d ' ')"
done
merged_branches=$(echo $merged_branches | tr ' ' '\n' | sort -u | tr '\n' ' ') # Remove duplicates
read -ra merged_branches <<< "${merged_branches}" # Convert to array

# Iterate through each merged branch and delete it (unless it's a current / protected branch)
for branch in "${merged_branches[@]}"; do
  if [[ ! " ${protected_branches[@]} " =~ " $branch " ]]; then
    echo "- DELETING: $branch"
    git branch -d "${branch}" # Delete local branch
    git push origin --delete "${branch}" 2>/dev/null # Delete remote branch (if it exists)
  elif [[ "$branch" == "$current_branch" ]]; then
    echo "- SKIPPING: $branch [*CURRENT*]"
  else
    echo "- SKIPPING: $branch [*PROTECTED*]"
  fi
done

# Prune all stale remote tracking branches again
git fetch origin --prune

echo ""
echo "DONE!"
echo ""
echo "REMAINING LOCAL BRANCHES:"
echo "$(git branch)"

if [[ ! " ${base_branches[@]} " =~ " ${current_branch} " ]]; then
  echo ""
  echo "NOTE:"
  echo "You are currently on branch '${current_branch}', which was not deleted."
  echo "To delete it, switch to one of the following branches and try again: ${base_branches[*]}"
fi

OLD_git_delete_merged_branches.sh

# Delete remote branches that have been merged into 'origin/develop' (besides current, 'origin/develop' and 'origin/master')
git pull --rebase upstream develop:develop
git push origin develop:develop
git remote prune origin
git branch -r --merged origin/develop | grep -wv 'master\|develop' | sed 's/^origin\///' | xargs -n 1 git push -d origin
git remote prune origin

# Delete local branches that have been merged into 'develop' (besides current, 'develop' and 'master' branches)
git branch --merged develop | grep -wv '\*\|master\|develop' | xargs -n 1 git branch -d

OLD_git_delete_prune.sh

git push origin -d LOCAL_BRANCH   # remove remote branch tracked by local branch
git remote prune origin           # remove *references* (refs/remotes/…) for remote branches
                                  #   that no longer exist (run `git branch -a` before and after
                                  #   to see the difference.
git branch -d LOCAL_BRANCH        # remove branch locally