update docs for darcs

Deleted all the old incomplete implementations.

Moved explanation of the two-repo system currently implemented for darcs
into rcs/details, and removed discussion from there about other methods
(including one-repo).

Wrote a rcs/darcs page, which I hope is accurate.

1 files changed, 15 insertions, 0 deletions

diff --git a/doc/rcs/darcs.mdwn b/doc/rcs/darcs.mdwn
new file mode 100644
index 000000000..7f66d0808
--- /dev/null
+++ b/doc/rcs/darcs.mdwn
@@ -0,0 +1,15 @@
+[Darcs](http://darcs.new) is a distributed revison control
+system. Ikiwiki supports storing a wiki in a
+Darcs repository.
+
+An Ikiwiki wrapper is run by the `posthook` to update a wiki whenever commits
+or remote pushes come in. When running as a [[cgi]] with Darcs, ikiwiki
+automatically commits edited pages, and uses the Darcs history to generate the
+[[RecentChanges]] page.
+
+Example for a `_darcs/prefs/defaults` file in `$SRCDIR`:
+
+	apply posthook /path/to/repository/_darcs/ikiwrapper
+	apply run-posthook
+
+See also [[todo/darcs|todo/darcs]]