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cgit - CGI for Git
==================

This is an attempt to create a fast web interface for the Git SCM, using a
built-in cache to decrease server I/O pressure.

Installation
------------

Building cgit involves building a proper version of Git. How to do this
depends on how you obtained the cgit sources:

a) If you're working in a cloned cgit repository, you first need to
initialize and update the Git submodule:

    $ git submodule init     # register the Git submodule in .git/config
    $ $EDITOR .git/config    # if you want to specify a different url for git
    $ git submodule update   # clone/fetch and checkout correct git version

b) If you're building from a cgit tarball, you can download a proper git
version like this:

    $ make get-git

When either a) or b) has been performed, you can build and install cgit like
this:

    $ make
    $ sudo make install

This will install `cgit.cgi` and `cgit.css` into `/var/www/htdocs/cgit`. You
can configure this location (and a few other things) by providing a `cgit.conf`
file (see the Makefile for details).


Dependencies
------------

* libzip
* libcrypto (OpenSSL)
* libssl (OpenSSL)

Apache configuration
--------------------

A new `Directory` section must probably be added for cgit, possibly something
like this:

    <Directory "/var/www/htdocs/cgit/">
        AllowOverride None
        Options +ExecCGI
        Order allow,deny
        Allow from all
    </Directory>


Runtime configuration
---------------------

The file `/etc/cgitrc` is read by cgit before handling a request. In addition
to runtime parameters, this file may also contain a list of repositories
displayed by cgit (see `cgitrc.5.txt` for further details).

The cache
---------

When cgit is invoked it looks for a cache file matching the request and
returns it to the client. If no such cache file exists (or if it has expired),
the content for the request is written into the proper cache file before the
file is returned.

If the cache file has expired but cgit is unable to obtain a lock for it, the
stale cache file is returned to the client. This is done to favour page
throughput over page freshness.

The generated content contains the complete response to the client, including
the HTTP headers `Modified` and `Expires`.

Online presence
---------------

* The cgit homepage is hosted by cgit at <https://git.zx2c4.com/cgit/about/>

* Patches, bug reports, discussions and support should go to the cgit
  mailing list: <cgit@lists.zx2c4.com>. To sign up, visit
  <https://lists.zx2c4.com/mailman/listinfo/cgit>
cgitrc (as opposed to parsing something like /etc/mime.types) is to allow quick lookup of a limited number of filename extensions (/etc/mime-types on my machine currently contains over 700 entries). NB: A nice addition to this patch would be to parse /etc/mime.types when `plain` view is requested for a file with an extension for which there is no mapping registered in cgitrc. Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-07-25cgit.h: keep config flags sortedLars Hjemli Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-07-25cgitrc.5.txt: document 'embedded' and 'noheader'Lars Hjemli Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-07-25Add support for 'noheader' optionLars Hjemli This option can be used to disable the standard cgit page header, which might be useful in combination with the 'embedded' option. Suggested-by: Mark Constable <markc@renta.net> Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-07-25cgitrc.5.txt: document 'head-include'Lars Hjemli Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-07-25ui-blob: return 'application/octet-stream' for binary blobsLars Hjemli Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-07-25ui-plain: Return 'application/octet-stream' for binary files.Remko Tronçon Signed-off-by: Remko Tronçon <git@el-tramo.be> Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-06-11use cgit_httpscheme() for atom feedDiego Ongaro 2009-06-11add cgit_httpscheme() -> http:// or https://Diego Ongaro 2009-06-07Return http statuscode 404 on unknown branchLars Hjemli Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-06-07Add head-include configuration option.Mark Lodato This patch adds an option to the configuration file, "head-include", which works just like "header" or "footer", except the content is put into the HTML's <head> tag. 2009-03-15CGIT 0.8.2.1Lars Hjemli Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-03-15Fix doc-related glitches in Makefile and .gitignoreLars Hjemli Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-03-15ui-snapshot: avoid segfault when no filename is specifiedLars Hjemli Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-03-15fix segfault when displaying empty blobsEric Wong When size is zero, subtracting one from it turns it into ULONG_MAX which causes an out-of-bounds access on buf. Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-02-19Add support for HEAD requestsLars Hjemli This is a quick 'n dirty hack which makes cgit honor HEAD requests. Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-02-19Add support for ETag in 'plain' viewLars Hjemli When downloading a blob identified by its path, the client might want to know if the blob has been modified since a previous download of the same path. To this end, an ETag containing the blob SHA1 seems to be ideal. Todo: add support for HEAD requests... Suggested-by: Owen Taylor <otaylor@redhat.com> Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-02-12ui-tree: escape ascii-text properly in hexdump viewLars Hjemli Signed-off-by: Lars Hjemli <hjemli@gmail.com> 2009-02-12Makefile: add doc-related targetsLars Hjemli