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st63jun/switch-ruby

Last active August 29, 2015 14:01
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  1. st63jun revised this gist May 20, 2014. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion switch-ruby
    View file
    Original file line number Diff line number Diff line change
    @@ -52,7 +52,7 @@ function switch_ruby()
    fi
    len=${#AVAILABLE_RUBIES[*]}
    if [ $1 -lt 0 -o $(expr $len - 1) -lt $1 ]; then
    echo "Error: Invalid index."
    echo "Error: Invalid number."
    exit 1
    fi
    if [ -e $CURRENT ]; then
  2. st63jun revised this gist May 20, 2014. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion switch-ruby
    View file
    Original file line number Diff line number Diff line change
    @@ -64,7 +64,7 @@ function switch_ruby()
    function usage()
    {
    cat <<EOF
    Usage: $0 <command>
    Usage: $(basename $0) <command>
    Available commands:
  3. st63jun revised this gist May 17, 2014. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion switch-ruby
    View file
    Original file line number Diff line number Diff line change
    @@ -1,4 +1,4 @@
    #!/bin/sh
    #!/bin/bash

    #
    # switch-ruby - Simple Ruby switcher
  4. st63jun created this gist May 16, 2014.
    81 changes: 81 additions & 0 deletions switch-ruby
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,81 @@
    #!/bin/sh

    #
    # switch-ruby - Simple Ruby switcher
    #
    # The MIT License (MIT)
    #
    # Copyright (c) 2014 Jun SAITO <jun.saito@u-cast.com>
    #
    # Permission is hereby granted, free of charge, to any person obtaining a copy
    # of this software and associated documentation files (the "Software"), to deal
    # in the Software without restriction, including without limitation the rights
    # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    # copies of the Software, and to permit persons to whom the Software is
    # furnished to do so, subject to the following conditions:
    #
    # The above copyright notice and this permission notice shall be included in
    # all copies or substantial portions of the Software.
    #
    # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    # THE SOFTWARE.
    #

    RUBIES_HOME=$HOME/.rubies
    CURRENT=$RUBIES_HOME/current

    AVAILABLE_RUBIES=($(find $RUBIES_HOME -maxdepth 1 -type d | grep -v "^$RUBIES_HOME$"))

    function show_rubies() {
    current=$(readlink -f $CURRENT)
    i=0
    for ruby in ${AVAILABLE_RUBIES[@]}; do
    if [ $ruby == $current ]; then
    echo "--> " \($i\) $ruby
    else
    echo " " \($i\) $ruby
    fi
    i=$((i+1))
    done
    }

    function switch_ruby()
    {
    if [ -z $1 ]; then
    usage
    exit 1
    fi
    len=${#AVAILABLE_RUBIES[*]}
    if [ $1 -lt 0 -o $(expr $len - 1) -lt $1 ]; then
    echo "Error: Invalid index."
    exit 1
    fi
    if [ -e $CURRENT ]; then
    unlink $CURRENT
    fi
    ln -sv ${AVAILABLE_RUBIES[$1]} $CURRENT
    }

    function usage()
    {
    cat <<EOF
    Usage: $0 <command>
    Available commands:
    list List installed rubies.
    switch <number> Switch ruby.
    EOF
    }

    case $1 in
    ls | list) show_rubies ;;
    sw | switch) switch_ruby $2 ;;
    *) usage ;;
    esac