Why must I use local path rather than 'svn://' with SVN bindings? - ruby

Question

I'm using the Ruby SVN bindings built with SWIG. Here's a little tutorial.
When I do this
#repository = Svn::Repos.open('/path/to/repository')
I can access the repository fine. But when I do this
#repository = Svn::Repos.open('svn://localhost/some/path')
It fails with
/SourceCache/subversion/subversion-35/subversion/subversion/libsvn_subr/io.c:2710: 2: Can't open file 'svn://localhost/format': No such file or directory
When I do this from the command line, I do get output
svn ls svn://localhost/some/path
Any ideas why I can't use the svn:// protocol?
EDIT
Here's what I ended up doing, and it works.
require 'svn/ra'
class SvnWrapper
def initialize(repository_uri, repository_username, repository_password)
# Remove any trailing slashes from the path, as the SVN library will choke
# if it finds any.
#repository_uri = repository_uri.gsub(/[\/]+$/, '')
# Initialize repository session.
#context = Svn::Client::Context.new
#context.add_simple_prompt_provider(0) do |cred, realm, username, may_save|
cred.username = repository_username
cred.password = repository_password
cred.may_save = true
end
config = {}
callbacks = Svn::Ra::Callbacks.new(#context.auth_baton)
#session = Svn::Ra::Session.open(#repository_uri, config, callbacks)
end
def ls(relative_path, revision = nil)
relative_path = relative_path.gsub(/^[\/]+/, '').gsub(/[\/]+$/, '')
entries, properties = #session.dir(relative_path, revision)
return entries.keys.sort
end
def info(relative_path, revision = nil)
path = File.join(#repository_uri, relative_path)
data = {}
#context.info(path, revision) do |dummy, infoStruct|
# These values are enumerated at http://svn.collab.net/svn-doxygen/structsvn__info__t.html.
data['url'] = infoStruct.URL
data['revision'] = infoStruct.rev
data['kind'] = infoStruct.kind
data['repository_root_url'] = infoStruct.repos_root_url
data['repository_uuid'] = infoStruct.repos_UUID
data['last_changed_revision'] = infoStruct.last_changed_rev
data['last_changed_date'] = infoStruct.last_changed_date
data['last_changed_author'] = infoStruct.last_changed_author
data['lock'] = infoStruct.lock
end
return data
end
end
Enjoy.

Answer 1

The svn command is a client. It communicates with the Subversion server using several protocols (http(s)://, svn:// and file:///).
Repos.open is a repository function (much like svnadmin for instance). It operates directly on the database, and doesn't use a client protocol to communicate with the server.