doc/plugins/contrib/cvs.mdwn



[[!template id=plugin name=cvs core=0 author="[[schmonz]]"]]
[[!template id=gitbranch branch=schmonz author="[[schmonz]]"]]
This plugin allows ikiwiki to use [[!wikipedia desc="CVS" Concurrent Versions System]] as an [[rcs]].
Usage

Install [[!cpan File::chdir]], [[!cpan File::ReadBackwards]],
cvsps, and
cvsweb or the like.
Adjust CVS-related parameters in your setup file.

Consider creating $HOME/.cvsrc if you don't have one already; the plugin doesn't need it, but you yourself might. Here's a good general-purpose one:
cvs -q
checkout -P
update -dP
diff -u
rdiff -u

Implementation details

cvs.pm started life as a copy of [[3.14159|news/version_3.14159]]'s svn.pm.
IkiWiki.pm:wiki_file_prune_regexps avoids copying CVS metadata
into $DESTDIR.
IkiWiki/Wrapper.pm provides a new "wrapperargcheck" hook, which
the plugin implements to avoid calling ikiwiki from post-commit
(and locking against itself) if it's a directory being cvs added.
[[ikiwiki-makerepo]]:
creates a repository,
imports $SRCDIR into top-level module ikiwiki (vendor tag IKIWIKI, release tag PRE_CVS),
configures the post-commit hook in CVSROOT/loginfo.
CVS multi-directory commits happen separately; the post-commit hook sees only the first directory's changes in time for [[recentchanges|plugins/recentchanges]]. The next run of ikiwiki --setup will correctly re-render such a recentchanges entry. It should be possible to solve this problem with NetBSD's commit_prep and log_accum scripts (see below).

To do

Instead of resource-intensively scraping changesets with cvsps, have ikiwiki-makerepo set up NetBSD-like log_accum and commit_prep scripts that coalesce and keep records of commits. cvsps can be used as a fallback for repositories without such records.
Perhaps prevent web edits from attempting to create .../CVS/foo.mdwn (and .../cvs/foo.mdwn on case-insensitive filesystems); thanks to the CVS metadata directory, the attempt will fail anyway (and much more confusingly) if we don't.