cdgem

cdgem.sh

# # cd into matching gem directory
# cdgem() {
#   local gempath=$(gem env gemdir)/gems
#   if [[ $1 == "" ]]; then
#     cd $gempath
#     return
#   fi
# 
#   local gem=$(ls $gempath | g $1 | sort | tail -1)
#   if [[ $gem != "" ]]; then
#     cd $gempath/$gem
#   fi
# }
# _cdgem() {
#   COMPREPLY=($(compgen -W '$(ls `gem env gemdir`/gems)' -- ${COMP_WORDS[COMP_CWORD]}))
#   return 0;
# }
# complete -o default -o nospace -F _cdgem cdgem;

cdgem() {
    # figure out if we're using Isolate, Bundler or system gems
    local project_root="$PWD" bundler isolate
    while true; do
        [[ -f "$project_root"/Gemfile ]] && bundler=y
        [[ -f "$project_root"/Isolate ]] && isolate=y

        [[ "$bundler" && "$isolate" ]] && { echo "ERROR: ambiguous configuration found at '$project_root'" >&2 && return 1; }
        [[ "$bundler" || "$isolate" ]] && break

        [[ "$project_root" ]] && project_root="${project_root%/*}" || break
    done

    if [[ "$bundler" ]]; then
        echo "Bundler: $project_root"
    else
        [[ "$isolate" ]] && echo "Isolate: $project_root"

        # get the list of paths for system gems
        local hasIFS
        declare -p IFS >/dev/null 2>&1 && hasIFS=y oldIFS="$IFS"
        IFS=: gem_paths=($GEM_PATH)
        [[ "$hasIFS" ]] && IFS="$oldIFS" || unset IFS

        echo "System: ${gem_paths[@]}"
    fi
}