web commit by http://joey.kitenet.net/

[ikiwiki.git] / doc / about_rcs_backends.mdwn

diff --git a/doc/about_rcs_backends.mdwn b/doc/about_rcs_backends.mdwn
index 8e3c8cfd9c0c6501abfe420e911ff18d33dbbb62..c20fa5cc3195165c8a81faaa2797dee5be3bcffd 100644 (file)
--- a/doc/about_rcs_backends.mdwn
+++ b/doc/about_rcs_backends.mdwn
@@ -29,11 +29,14 @@ see [[commit-internals]].
 
 You browse and web-edit the wiki on W.
 
+W "belongs" to ikiwiki and should not be edited directly.
+
 
 ## [darcs](http://darcs.net/) (not yet included)
 
 Support for using darcs as a backend is being worked on by [Thomas
-Schwinge](mailto:tschwinge@gnu.org).
+Schwinge](mailto:tschwinge@gnu.org), although development is on hold curretly.
+There is a patch in the [[patchqueue]].
 
 ### How will it work internally?
 
@@ -102,6 +105,18 @@ by Ikiwiki.
 This approach might be applicable to other distributed VCSs as well, although they're not as oriented
 towards transmitting changes with standalone patch bundles (often by email) as darcs is.
 
+> The mercurial plugin seems to just use one repo and edit it directly - is
+> there some reason that's okay there but not for darcs? I agree with tuomov
+> that having just the one repo would be preferable; the point of a dvcs is
+> that there's no difference between one repo and another. I've got a
+> darcs.pm based on mercurial.pm, that's almost usable... --bma
+
+>> IMHO it comes down to whatever works well for a given RCS. Seems like
+>> the darcs approach _could_ be done with most any distributed system, but
+>> it might be overkill for some (or all?) While there is the incomplete darcs
+>> plugin in the [[patchqueue]], if you submit one that's complete, I will
+>> probably accept it into ikiwiki.. --[[Joey]]
+
 ## [[Git]]
 
 Regarding the Git support, Recai says:
@@ -117,6 +132,19 @@ part).  GIT doesn't have a similar functionality like 'svn merge -rOLD:NEW
 FILE' (please see the relevant comment in mergepast for more details), so I
 had to invent an ugly hack just for the purpose.
 
+By design, Git backend uses a "master-clone" repository pair approach in contrast
+to the single repository approach (here, _clone_ may be considered as the working
+copy of a fictious web user).  Even though a single repository implementation is
+possible, it somewhat increases the code complexity of backend (I couldn't figure
+out a uniform method which doesn't depend on the prefered repository model, yet).
+By exploiting the fact that the master repo and _web user_'s repo (`srcdir`) are all
+on the same local machine, I suggest to create the latter with the "`git clone -l -s`"
+command to save disk space.
+
+Note that, as a rule of thumb, you should always put the rcs wrapper (`post-update`)
+into the master repository (`.git/hooks/`) as can be noticed in the Git wrappers of
+the sample [[ikiwiki.setup]].
+
 ## [[Mercurial]]
 
 The Mercurial backend is still in a early phase, so it may not be mature 
@@ -148,4 +176,4 @@ CGI operates on M. rcs_commit() will commit directly in M.
 If you have any question or suggestion about the Mercurial backend 
 please refer to [Emanuele](http://nerd.ocracy.org/em/)
 
-## [[tla]]
\ No newline at end of file
+## [[tla]]