run `nvm use` automatically every time there's a .nvmrc file on the directory

Question

How to configure my shell so that nvm use run automatically every time there\'s a .nvmrc file on the directory and use the latest version or a global config whe

Answer 1

Extending on @Adriano P answer, I'd propose this version that is less general (only works if .nvmrc is set on a git repository root), but works in cases when we navigate to elsewhere in project than its root:

_enter_dir() {
    local git_root
    git_root=$(git rev-parse --show-toplevel 2>/dev/null)

    if [[ "$git_root" == "$PREV_PWD" ]]; then
        return
    elif [[ -n "$git_root" && -f "$git_root/.nvmrc" ]]; then
        nvm use
        NVM_DIRTY=1
    elif [[ "$NVM_DIRTY" == 1 ]]; then
        nvm use default
        NVM_DIRTY=0
    fi
    PREV_PWD="$git_root"
}

export PROMPT_COMMAND=_enter_dir
#export PROMPT_COMMAND="$PROMPT_COMMAND;_enter_dir"  # use this if PROMPT_COMMAND already defined