The Darcs build step performs a
Darcs checkout or update.
Like See SVN, this step can either be configured to always check
out a specific tree, or set up to pull from a particular branch that
gets specified separately for each build. Also like SVN, the
repository URL given to Darcs is created by concatenating a
baseURL with the branch name, and if no particular branch is
requested, it uses a defaultBranch. The only difference in
usage is that each potential Darcs repository URL must point to a
fully-fledged repository, whereas SVN URLs usually point to sub-trees
of the main Subversion repository. In other words, doing an SVN
checkout of baseURL is legal, but silly, since you'd probably
wind up with a copy of every single branch in the whole repository.
Doing a Darcs checkout of baseURL is just plain wrong, since
the parent directory of a collection of Darcs repositories is not
itself a valid repository.
The Darcs step takes the following arguments:
repourlbaseURL is provided): the URL at which the
Darcs source repository is available.
baseURLrepourl is provided): the base repository URL,
to which a branch name will be appended. It should probably end in a
slash.
defaultBranchbaseURL is provided): this specifies
the name of the branch to use when a Build does not provide one of its
own. This will be appended to baseURL to create the string that
will be passed to the darcs get command.