fix uninitialized value warning

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

diff --git a/doc/rcs/git.mdwn b/doc/rcs/git.mdwn
index 74402e1558e91638384d8a011511d20eb2f7ee32..000eb0b3cd6282b78c56cbec462782b74c116679 100644 (file)
--- a/doc/rcs/git.mdwn
+++ b/doc/rcs/git.mdwn
@@ -1,4 +1,4 @@
-[[meta title="Git"]]
+[[!meta title="Git"]]

 
 [Git][git] is a distributed revison control system originally developed for
 the Linux kernel. Ikiwiki supports storing a wiki in git.
 
 [Git][git] is a distributed revison control system originally developed for
 the Linux kernel. Ikiwiki supports storing a wiki in git.


@@ -17,16 +17,12 @@ shallow, single level tree, with a bare repository (meaning that it
 does not have a working tree checked out) at the root, and various
 working clones (with working directories) as leaf nodes.  The root
 (bare) repository is meant to be pushed to and pulled from the various
 does not have a working tree checked out) at the root, and various
 working clones (with working directories) as leaf nodes.  The root
 (bare) repository is meant to be pushed to and pulled from the various

-working clones. The image below displays the relationship between the
-root repository and the clone repositories (this is not a directory
-layout):
-
-![Git repository relationships](http://people.debian.org/~srivasta/ikiwiki_git.png)
+working clones.

 
 One of the leaf node clone repositories is special; it has working
 
 One of the leaf node clone repositories is special; it has working

-directory which is used to compile the wiki from, and is also used by the
+directory which is used to compile the wiki, and is also used by the

 [[cgi]] to commit changes made via the web interface. It is special
 [[cgi]] to commit changes made via the web interface. It is special

-since the `post-commit` hook for the bare root repository is used to
+since the `post-update` hook for the bare root repository is used to

 trigger an update of this repository, and then an ikiwiki refresh
 updates the published  wiki itself.
 
 trigger an update of this repository, and then an ikiwiki refresh
 updates the published  wiki itself.
 


@@ -47,9 +43,9 @@ repositories:
   repositories will push to/pull from.  It is a bare repository, since
   there are problems pushing to a repository that has a working
   directory. This is called _repository_ in [[ikiwiki-makerepo]]'s
   repositories will push to/pull from.  It is a bare repository, since
   there are problems pushing to a repository that has a working
   directory. This is called _repository_ in [[ikiwiki-makerepo]]'s

-  manual page. Nominally, this bare repository has a `post-commit` hook
+  manual page. Nominally, this bare repository has a `post-update` hook

   that either is or calls ikiwiki's git wrapper, which changes to the
   that either is or calls ikiwiki's git wrapper, which changes to the

-  working directory for ikiwiki, does a _git pull_, and refreshes ikiwiki
+  working directory for ikiwiki, does a `git pull`, and refreshes ikiwiki

   to regenerate the wiki with any new content. The [[setup]] page describes
   how to do this.
 
   to regenerate the wiki with any new content. The [[setup]] page describes
   how to do this.
 


@@ -68,7 +64,7 @@ repositories:
   hack on your wiki. you can commit local changes to the version on
   the laptop, perhaps while offline. Any new content should be pushed to the
   bare master repository when you are ready to publish it, and then
   hack on your wiki. you can commit local changes to the version on
   the laptop, perhaps while offline. Any new content should be pushed to the
   bare master repository when you are ready to publish it, and then

-  the post-commit hook of the bare repository will ensure that the
+  the post-update hook of the bare repository will ensure that the

   ikiwiki's source directory is updated, and the ikiwiki refreshed
   with the new content.
 
   ikiwiki's source directory is updated, and the ikiwiki refreshed
   with the new content.
 


@@ -83,7 +79,7 @@ It is **paramount** that you **never** push to the non-bare repository
 Instead, clone the bare repository as mentioned above, and push
 **only** to the bare repository.
 
 Instead, clone the bare repository as mentioned above, and push
 **only** to the bare repository.
 

-The ikiwiki `post-commit` hook should be put in the bare repository.
+The ikiwiki `post-update` hook should be put in the bare repository.

 
 ## git repository with multiple committers
 
 
 ## git repository with multiple committers
 


@@ -104,6 +100,33 @@ 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.)
 
 group. Take care that ikiwiki uses a umask that does not cause files in
 the srcdir to become group writable. (umask 022 will work.)
 

+## git repository with untrusted committers
+
+By default, anyone who can commit to the git repository can modify any file
+on the wiki however they like. A `pre-receive` hook can be set up to limit
+incoming commits from untrusted users. Then the same limits that are placed
+on edits via the web will be in effect for commits to git for the users.
+They will not be allowed to edit locked pages, they will only be able to
+delete pages that the [[plugins/remove]] configuration allows them to
+remove, and they will only be allowed to add non-page attachments that the
+[[plugins/attachment]] configuration allows.
+
+To enable this, you need to set up the git repository to have multiple
+committers. Trusted committers, including the user that ikiwiki runs as, 
+will not have their commits checked by the `pre-receive` hook. Untrusted
+committers will have their commits checked. The configuration settings to
+enable are `git_test_receive_wrapper`, which enables generation of a
+`pre-receive` hook, and `untrusted_committers`, which is a list of
+usernames of the untrusted committers.
+
+Note that when the `pre-receive` hook is checking incoming changes, it
+ignores the git authorship information, and uses the username of the unix
+user who made the commit. Then tests including the `locked_pages` [[PageSpec]]
+are checked to see if that user can edit the pages in the commit.
+
+You can even set up an [[anonymous_user|tips/untrusted_git_push]], to allow
+anyone to push changes in via git rather than using the web interface.
+

 ## Optionally using a local wiki to preview changes
 
 When working on the "working clones" to add content to your wiki,
 ## Optionally using a local wiki to preview changes
 
 When working on the "working clones" to add content to your wiki,


@@ -124,7 +147,7 @@ is the normal behaviour of ikiwiki, set the configuration of the local wiki:
 
       gitorigin_branch => "",
       ## git post-commit wrapper
 
       gitorigin_branch => "",
       ## git post-commit wrapper

-      wrapper => "/working/dir/.git/hooks/post-commit",
+      git_wrapper => "/working/dir/.git/hooks/post-commit",

 
 Then just committing should refresh the private ikiwiki on the local
 host.  Now just run `ikiwiki -setup localwiki.setup -getctime` and
 
 Then just committing should refresh the private ikiwiki on the local
 host.  Now just run `ikiwiki -setup localwiki.setup -getctime` and


@@ -138,3 +161,28 @@ have a hook that is run locally after pulling changes. Newer
 versions of git will have a `post-merge` hook that should work for
 this purpose.
 
 versions of git will have a `post-merge` hook that should work for
 this purpose.
 

+## Fix for error on git pull origin
+
+Error message when running git pull origin:
+
+    You asked me to pull without telling me which branch you
+    want to merge with, and 'branch.master.merge' in
+    your configuration file does not tell me either.  Please
+    name which branch you want to merge on the command line and
+    try again (e.g. 'git pull <repository> <refspec>').
+    See git-pull(1) for details on the refspec.
+    
+    If you often merge with the same branch, you may want to
+    configure the following variables in your configuration
+    file:
+    
+        branch.master.remote = <nickname>
+        branch.master.merge = <remote-ref>
+        remote.<nickname>.url = <url>
+        remote.<nickname>.fetch = <refspec>
+    
+    See git-config(1) for details.
+
+The solution is to run this command in your srcdir:
+
+    git config branch.master.remote origin