add linux Rakefile

linux/Rakefile

@@ -0,0 +1,134 @@
+def step(description)
+  description = "-- #{description} "
+  description = description.ljust(80, '-')
+  puts
+  puts "\e[32m#{description}\e[0m"
+end
+
+def install_github_bundle(user, package)
+  unless File.exist? File.expand_path("~/.vim/bundle/#{package}")
+    sh "git clone https://github.com/#{user}/#{package} ~/.vim/bundle/#{package}"
+  end
+end
+
+def get_backup_path(path)
+  number = 1
+  backup_path = "#{path}.bak"
+  loop do
+    if number > 1
+      backup_path = "#{backup_path}#{number}"
+    end
+    if File.exists?(backup_path) || File.symlink?(backup_path)
+      number += 1
+      next
+    end
+    break
+  end
+  backup_path
+end
+
+def link_file(original_filename, symlink_filename)
+  original_path = File.expand_path(original_filename)
+  symlink_path = File.expand_path(symlink_filename)
+  if File.exists?(symlink_path) || File.symlink?(symlink_path)
+    if File.symlink?(symlink_path)
+      symlink_points_to_path = File.readlink(symlink_path)
+      return if symlink_points_to_path == original_path
+      # Symlinks can't just be moved like regular files. Recreate old one, and
+      # remove it.
+      ln_s symlink_points_to_path, get_backup_path(symlink_path), :verbose => true
+      rm symlink_path
+    else
+      # Never move user's files without creating backups first
+      mv symlink_path, get_backup_path(symlink_path), :verbose => true
+    end
+  end
+  ln_s original_path, symlink_path, :verbose => true
+end
+
+def unlink_file(original_filename, symlink_filename)
+  original_path = File.expand_path(original_filename)
+  symlink_path = File.expand_path(symlink_filename)
+  if File.symlink?(symlink_path)
+    symlink_points_to_path = File.readlink(symlink_path)
+    if symlink_points_to_path == original_path
+      # the symlink is installed, so we should uninstall it
+      rm_f symlink_path, :verbose => true
+      backups = Dir["#{symlink_path}*.bak"]
+      case backups.size
+      when 0
+        # nothing to do
+      when 1
+        mv backups.first, symlink_path, :verbose => true
+      else
+        $stderr.puts "found #{backups.size} backups for #{symlink_path}, please restore the one you want."
+      end
+    else
+      $stderr.puts "#{symlink_path} does not point to #{original_path}, skipping."
+    end
+  else
+    $stderr.puts "#{symlink_path} is not a symlink, skipping."
+  end
+end 
+
+def filemap(map)
+  map.inject({}) do |result, (key, value)|
+    result[File.expand_path(key)] = File.expand_path(value)
+    result
+  end.freeze
+end
+
+COPIED_FILES = filemap(
+  '../vimrc.local'         => '~/.vimrc.local',
+  '../vimrc.bundles.local' => '~/.vimrc.bundles.local',
+  '../tmux.conf.local'     => '~/.tmux.conf.local'
+)
+
+LINKED_FILES = filemap(
+  '../vim'           => '~/.vim',
+  '../tmux.conf'     => '~/.tmux.conf',
+  '../vimrc'         => '~/.vimrc',
+  '../vimrc.bundles' => '~/.vimrc.bundles'
+)
+
+namespace :install do
+  desc 'Install Vundle'
+  task :vundle do
+    step 'vundle'
+    install_github_bundle 'VundleVim','Vundle.vim'
+    sh 'vim -c "PluginInstall!" -c "q" -c "q"'
+  end
+end
+
+desc 'Install these config files.'
+task :install do
+  step 'symlink'
+
+  LINKED_FILES.each do |orig, link|
+    link_file orig, link
+  end
+
+  COPIED_FILES.each do |orig, copy|
+    cp orig, copy, :verbose => true unless File.exist?(copy)
+  end 
+
+  # Install Vundle and bundles
+  Rake::Task['install:vundle'].invoke
+end
+
+desc 'Uninstall these config files.'
+task :uninstall do
+  step 'un-symlink'
+
+  # un-symlink files that still point to the installed locations
+  LINKED_FILES.each do |orig, link|
+    unlink_file orig, link
+  end
+
+  # delete unchanged copied files
+  COPIED_FILES.each do |orig, copy|
+    rm_f copy, :verbose => true if File.read(orig) == File.read(copy)
+  end
+end
+
+task :default => :install