replace install with a simple shell script (remove ruby dependency)

install.rb

@@ -1,18 +0,0 @@
-#!/usr/bin/env ruby
-
-# from http://errtheblog.com/posts/89-huba-huba
-
-home = File.expand_path('~')
-
-Dir['*'].each do |file|
-  next if file =~ /install/ || file =~ /README/
-  target_name = file == 'bin' ? file : ".#{file}"
-  target = File.join(home, target_name)
-  unless File.exist? target
-    `ln -vsf #{File.expand_path file} #{target}`
-  else
-    unless File.symlink? target
-      puts "#{target} exists"
-    end
-  end
-end

install.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+DOTFILES=`cd $(dirname $0); pwd`
+
+for FILE in $DOTFILES/*; do
+    NAME=`basename $FILE`
+    if [ $NAME == 'bin' ]; then
+        TARGET=$HOME/bin
+    else
+        TARGET=$HOME/.$NAME
+    fi
+
+    if [ $NAME != 'install.sh' ]; then
+        if [ -L $TARGET ]; then
+            echo "$TARGET exists"
+        else
+            ln -vsf $FILE $TARGET
+        fi
+    fi
+done