Why doesn't Spotlight show invisible files that I know exist?

I am running Mac OS X 10.8 (Mountain Lion) and had to edit an invisible file as part of an Android project. While I eventually found it, Spotlight was of no help, since it could not find an invisible file when searching for the exact name (.classpath) and with the 'File Visibility' option set to 'Visible or Invisible'.

Why didn't Spotlight work in this instance?

Solution 1:

Though, it won't update the results in spotlight I use the below script to toggle hidden files on and off every time it's run:

To make:

• Open TextEdit
• Make sure it is in Plain Text Mode (Format > Make Plain Text from the menu)
• paste in the below text:

    #Load current state into I
    I=$(defaults read com.apple.Finder AppleShowAllFiles)
    if [ "$I" == "false" ]
      then
        # Flip
        I=true
        echo -e "\t>> Showing Hidden Files"
      else 
        # Flop
        I=false
        echo -e "\t<< Hiding Hidden Files"
    fi
    # Write I to com.apple.Finder.plist
    defaults write com.apple.Finder AppleShowAllFiles $I
    # Restart Finder
    killall Finder
    exit

• Save the above file to your desktop as togglehidden.command (be sure not to append .txt to the end of the file)
• Open /Applications/Utilities/Terminal
• Enter the command chmod u+x ~/Desktop/togglehidden.command to make your new file executable.
• Double Click togglehidden.command on your desktop to show or hide hidden files.