On 30 Apr 2008, at 18:13, Christian wrote:
When I work with new projects I often orientate on old ones. Therefore I include these old files in the project drawer within my new project. Often I copy something from the old ones. To prevent the old (original) files from being changed during that, is there way to lock it or give only rights for reading to it?
You can make it non-writable from the shell or Finder, TextMate will respect that.