cheat sheets.

Creating a new repository:
  $ mkdir ProjectDirectory
  $ cd ProjectDirectory
  $ darcs init

Creating a new repository for an existing project:
  $ cd ExistingProject
  $ darcs init
  $ darcs add -r *
  $ darcs record -m "Initial import of ExistingProject."

Status:
  $ darcs whatsnew -l

Committing changes:
  $ darcs record

Creating a patch for a darcs repository:
  $ darcs send http://gnufoo.org/darcs/physics2d; # Sends the maintainer an
  email
  $ darcs send -o patch.diff http://gnufoo.org/darcs/physics2d; # Creates a
  patch file

Creating a patch for a non-darcs repository:
  $ darcs changes --last 2; # Make sure you're picking up the right patches.
  $ darcs diff -u --last 2 > patch.diff;

Rollback:
  $ darcs unrecord

Making a new copy of a repository (you can treat it like a branch):
  $ darcs get ProjectDirectory RadicalRefactor
  $ cd RadicalRefactor; # Go nuts!

Checking out from an external repository:
  $ darcs get http://gnufoo.org/darcs/dynamorph

Creating a tarball:
  $ darcs dist

Exposing repository to the web (just copy up to your webspace; no server
needed!):
  $ tar cfz ProjectDirectory.tgz ProjectDirectory
  $ scp ProjectDirectory.tgz yourhost.org:your/web/directory
  Now people can grab your repository with: 
  $ darcs get http://yourhost.org:your/web/directory/ProjectDirectory

Updating your repository on the web:
  $ cd dynamorph-local
  $ darcs push gnufoo.org:www/darcs/dynamorph; # uses scp to copy (requires
  darcs on the other machine)