worktree helpers

newt.sh

# newt: fresh worktree off origin/main (ignores current branch/dirty state) + cd into it
function newt() {
        local toplevel parent repo branch newdir
        toplevel=$(git rev-parse --show-toplevel 2>/dev/null) || {
                echo "newt: not inside a git repository" >&2
                return 1
        }
        repo=$(basename "$(dirname "$(git rev-parse --path-format=absolute --git-common-dir 2>/dev/null)")")
        parent=$(dirname "$toplevel")
        branch="$(whoami)-$(date +%s)"
        newdir="$parent/$repo-$branch"

        echo "newt: fetching origin/main..." >&2
        git fetch origin main || {
                echo "newt: 'git fetch origin main' failed" >&2
                return 1
        }

        git worktree add -b "$branch" "$newdir" origin/main || {
                echo "newt: failed to create worktree at $newdir" >&2
                return 1
        }

        cd "$newdir" && echo "newt: now in $newdir on branch $branch" >&2
}

rmwt.sh

# rmwt: remove the current worktree and delete its local branch (cleanup after newt)
function rmwt() {
        local toplevel branch common main_toplevel
        toplevel=$(git rev-parse --show-toplevel 2>/dev/null) || {
                echo "rmwt: not inside a git repository" >&2
                return 1
        }
        common=$(git rev-parse --path-format=absolute --git-common-dir 2>/dev/null)
        main_toplevel=$(dirname "$common")
        branch=$(git rev-parse --abbrev-ref HEAD 2>/dev/null)

        if [[ "$toplevel" == "$main_toplevel" ]]; then
                echo "rmwt: refusing to remove the main worktree ($toplevel)" >&2
                return 1
        fi
        if [[ "$branch" == "main" ]]; then
                echo "rmwt: refusing, current branch is 'main'" >&2
                return 1
        fi

        cd "$main_toplevel" || return 1

        git worktree remove "$toplevel" || {
                echo "rmwt: 'git worktree remove' failed; if it's just untracked/dirty files run: git worktree remove --force $toplevel" >&2
                cd "$toplevel" 2>/dev/null
                return 1
        }

        git branch -D "$branch" && echo "rmwt: removed worktree $toplevel and branch $branch" >&2
}