Merge branch 'master' of ssh://git.kitenet.net/srv/git/ikiwiki.info

[ikiwiki.git] / doc / rcs / git.mdwn

diff --git a/doc/rcs/git.mdwn b/doc/rcs/git.mdwn
index 55e2f1d556e06c3923c74fe1f3b5e5a5a3506223..38a418a5b3825fd85386963cc80cc1c73f9c5ad9 100644 (file)
--- a/doc/rcs/git.mdwn
+++ b/doc/rcs/git.mdwn
@@ -5,13 +5,45 @@ the Linux kernel. Ikiwiki supports storing a wiki in git.
 
 [git]: http://git.or.cz/
 
-Ikiwiki can run as a post-update hook to update a wiki whenever commits
+Ikiwiki can run as a `post-update` hook to update a wiki whenever commits
 come in. When running as a [[cgi]] with Git, ikiwiki automatically
 commits edited pages, and uses the Git history to generate the
 [[RecentChanges]] page.
 
-[[Setup]] documents current best practice for using git with ikiwiki. This
-involves setting up a pair of git repositories. This method isn't the most
-obvious, but it works the best.
+## git repository setup
 
-See also: [[common_git_pitfalls|/setup/git_pitfalls]]
+When using Git, you probably want to set up two repositories, of which
+one should be bare (meaning that it does not have a working tree
+checked out), and the other one with a working tree will be used as
+ikiwiki's srcdir for compiling the wiki. [[ikiwiki-makerepo]] can automate
+setting this up. Using a pair of repositories isn't the most obvious set up,
+but it works the best for typical ikiwiki use.
+[[tips/Laptop_wiki_with_git]] describes a different way to set up ikiwiki
+and git.
+
+It is **paramount** that you **never** push to the non-bare repository
+([this FAQ entry explains why](http://git.or.cz/gitwiki/GitFaq#head-b6a3d85f677763313159eb39f7dbf4579d4ee28b)).
+Instead, if you want to work on the wiki from a remote machine, clone
+the bare repository, using either the `git` transport (if available), or
+`ssh`.
+
+The ikiwiki `post-commit` hook should be put in the bare repository.
+
+## git repository with multiple committers
+
+It can be tricky to get the permissions right to allow multiple people to
+commit to an ikiwiki git repository. As the [[security]] page mentions,
+for a secure ikiwiki installation, only one person should be able to write
+to ikiwiki's srcdir. When other committers make commits, their commits
+should go to the bare repository, which has a `post-update` hook that uses
+ikiwiki to pull the changes to the srcdir.
+
+One setup that will work is to put all committers in a group (say,
+"ikiwiki"), and use permissions to allow that group to commit to the bare git
+repository. Make both the post-update hook and ikiwiki.cgi be setgid
+to the group, as well as suid to the user who admins the wiki. The
+`wrappergroup` [[setup_file_option|usage]] can be used to make the wrappers
+be setgid to the right group. Then the srcdir, including its git
+repository, should only be writable by the wiki's admin, and *not* by the
+group. Take care that ikiwiki uses a umask that does not cause files in
+the srcdir to become group writable. (umask 022 will work.)