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diff --git a/gitweb/README b/gitweb/README
index 6c2c8e12598ca9ba17e7cc3d74812a8b7883d59a..6da4778b73e3ef1d098fce7655bf4ca5bb2443e5 100644 (file)
--- a/gitweb/README
+++ b/gitweb/README
From the git version 1.4.0 gitweb is bundled with git.
-How to configure gitweb for your local system
----------------------------------------------
+Build time gitweb configuration
+-------------------------------
+There are many configuration variables which affect building gitweb (among
+others creating gitweb.cgi out of gitweb.perl by replacing placeholders such
+as `++GIT_BINDIR++` by their build-time values).
-See also the "Build time configuration" section in the INSTALL
-file for gitweb (in gitweb/INSTALL).
-
-You can specify the following configuration variables when building GIT:
- * GIT_BINDIR
- Points where to find the git executable. You should set it up to
- the place where the git binary was installed (usually /usr/bin) if you
- don't install git from sources together with gitweb. [Default: $(bindir)]
- * GITWEB_SITENAME
- Shown in the title of all generated pages, defaults to the server name
- (SERVER_NAME CGI environment variable) if not set. [No default]
- * GITWEB_PROJECTROOT
- The root directory for all projects shown by gitweb. Must be set
- correctly for gitweb to find repositories to display. See also
- "Gitweb repositories" in the INSTALL file for gitweb. [Default: /pub/git]
- * GITWEB_PROJECT_MAXDEPTH
- The filesystem traversing limit for getting the project list; the number
- is taken as depth relative to the projectroot. It is used when
- GITWEB_LIST is a directory (or is not set; then project root is used).
- Is is meant to speed up project listing on large work trees by limiting
- search depth. [Default: 2007]
- * GITWEB_LIST
- Points to a directory to scan for projects (defaults to project root
- if not set / if empty) or to a file with explicit listing of projects
- (together with projects' ownership). See "Generating projects list
- using gitweb" in INSTALL file for gitweb to find out how to generate
- such file from scan of a directory. [No default, which means use root
- directory for projects]
- * GITWEB_EXPORT_OK
- Show repository only if this file exists (in repository). Only
- effective if this variable evaluates to true. [No default / Not set]
- * GITWEB_STRICT_EXPORT
- Only allow viewing of repositories also shown on the overview page.
- This for example makes GITWEB_EXPORT_OK to decide if repository is
- available and not only if it is shown. If GITWEB_LIST points to
- file with list of project, only those repositories listed would be
- available for gitweb. [No default]
- * GITWEB_HOMETEXT
- Points to an .html file which is included on the gitweb project
- overview page ('projects_list' view), if it exists. Relative to
- gitweb.cgi script. [Default: indextext.html]
- * GITWEB_SITE_HEADER
- Filename of html text to include at top of each page. Relative to
- gitweb.cgi script. [No default]
- * GITWEB_SITE_FOOTER
- Filename of html text to include at bottom of each page. Relative to
- gitweb.cgi script. [No default]
- * GITWEB_HOME_LINK_STR
- String of the home link on top of all pages, leading to $home_link
- (usually main gitweb page, which means projects list). Used as first
- part of gitweb view "breadcrumb trail": <home> / <project> / <view>.
- [Default: projects]
- * GITWEB_SITENAME
- Name of your site or organization to appear in page titles. Set it
- to something descriptive for clearer bookmarks etc. If not set
- (if empty) gitweb uses "$SERVER_NAME Git", or "Untitled Git" if
- SERVER_NAME CGI environment variable is not set (e.g. if running
- gitweb as standalone script). [No default]
- * GITWEB_BASE_URL
- Git base URLs used for URL to where fetch project from, i.e. full
- URL is "$git_base_url/$project". Shown on projects summary page.
- Repository URL for project can be also configured per repository; this
- takes precedence over URLs composed from base URL and a project name.
- Note that you can setup multiple base URLs (for example one for
- git:// protocol access, another for http:// access) from the gitweb
- config file. [No default]
- * GITWEB_CSS
- Points to the location where you put gitweb.css on your web server
- (or to be more generic, the URI of gitweb stylesheet). Relative to the
- base URI of gitweb. Note that you can setup multiple stylesheets from
- the gitweb config file. [Default: gitweb.css]
- * GITWEB_LOGO
- Points to the location where you put git-logo.png on your web server
- (or to be more generic URI of logo, 72x27 size, displayed in top right
- corner of each gitweb page, and used as logo for Atom feed). Relative
- to base URI of gitweb. [Default: git-logo.png]
- * GITWEB_FAVICON
- Points to the location where you put git-favicon.png on your web server
- (or to be more generic URI of favicon, assumed to be image/png type;
- web browsers that support favicons (website icons) may display them
- in the browser's URL bar and next to site name in bookmarks). Relative
- to base URI of gitweb. [Default: git-favicon.png]
- * GITWEB_JS
- Points to the localtion where you put gitweb.js on your web server
- (or to be more generic URI of JavaScript code used by gitweb).
- Relative to base URI of gitweb. [Default: gitweb.js (or gitweb.min.js
- if JSMIN build variable is defined / JavaScript minifier is used)]
- * GITWEB_CONFIG
- This Perl file will be loaded using 'do' and can be used to override any
- of the options above as well as some other options -- see the "Runtime
- gitweb configuration" section below, and top of 'gitweb.cgi' for their
- full list and description. If the environment variable GITWEB_CONFIG
- is set when gitweb.cgi is executed, then the file specified in the
- environment variable will be loaded instead of the file specified
- when gitweb.cgi was created. [Default: gitweb_config.perl]
- * GITWEB_CONFIG_SYSTEM
- This Perl file will be loaded using 'do' as a fallback if GITWEB_CONFIG
- does not exist. If the environment variable GITWEB_CONFIG_SYSTEM is set
- when gitweb.cgi is executed, then the file specified in the environment
- variable will be loaded instead of the file specified when gitweb.cgi was
- created. [Default: /etc/gitweb.conf]
+Building and installing gitweb is described in gitweb's INSTALL file
+(in 'gitweb/INSTALL').
Runtime gitweb configuration
----------------------------
+Gitweb obtains configuration data from the following sources in the
+following order:
-You can adjust gitweb behaviour using the file specified in `GITWEB_CONFIG`
-(defaults to 'gitweb_config.perl' in the same directory as the CGI), and
-as a fallback `GITWEB_CONFIG_SYSTEM` (defaults to /etc/gitweb.conf).
-The most notable thing that is not configurable at compile time are the
-optional features, stored in the '%features' variable.
-
-Ultimate description on how to reconfigure the default features setting
-in your `GITWEB_CONFIG` or per-project in `project.git/config` can be found
-as comments inside 'gitweb.cgi'.
-
-See also the "Gitweb config file" (with an example of config file), and
-the "Gitweb repositories" sections in INSTALL file for gitweb.
-
-
-The gitweb config file is a fragment of perl code. You can set variables
-using "our $variable = value"; text from "#" character until the end
-of a line is ignored. See perlsyn(1) man page for details.
-
-Below is the list of variables which you might want to set in gitweb config.
-See the top of 'gitweb.cgi' for the full list of variables and their
-descriptions.
-
-Gitweb config file variables
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-You can set, among others, the following variables in gitweb config files
-(with the exception of $projectroot and $projects_list this list does
-not include variables usually directly set during build):
- * $GIT
- Core git executable to use. By default set to "$GIT_BINDIR/git", which
- in turn is by default set to "$(bindir)/git". If you use git from binary
- package, set this to "/usr/bin/git". This can just be "git" if your
- webserver has a sensible PATH. If you have multiple git versions
- installed it can be used to choose which one to use.
- * $version
- Gitweb version, set automatically when creating gitweb.cgi from
- gitweb.perl. You might want to modify it if you are running modified
- gitweb.
- * $projectroot
- Absolute filesystem path which will be prepended to project path;
- the path to repository is $projectroot/$project. Set to
- $GITWEB_PROJECTROOT during installation. This variable have to be
- set correctly for gitweb to find repositories.
- * $projects_list
- Source of projects list, either directory to scan, or text file
- with list of repositories (in the "<URI-encoded repository path> SP
- <URI-encoded repository owner>" line format; actually there can be
- any sequence of whitespace in place of space (SP)). Set to
- $GITWEB_LIST during installation. If empty, $projectroot is used
- to scan for repositories.
- * $my_url, $my_uri
- Full URL and absolute URL of gitweb script;
- in earlier versions of gitweb you might have need to set those
- variables, now there should be no need to do it.
- * $base_url
- Base URL for relative URLs in pages generated by gitweb,
- (e.g. $logo, $favicon, @stylesheets if they are relative URLs),
- needed and used only for URLs with nonempty PATH_INFO via
- <base href="$base_url">. Usually gitweb sets its value correctly,
- and there is no need to set this variable, e.g. to $my_uri or "/".
- * $home_link
- Target of the home link on top of all pages (the first part of view
- "breadcrumbs"). By default set to absolute URI of a page ($my_uri).
- * @stylesheets
- List of URIs of stylesheets (relative to base URI of a page). You
- might specify more than one stylesheet, for example use gitweb.css
- as base, with site specific modifications in separate stylesheet
- to make it easier to upgrade gitweb. You can add 'site' stylesheet
- for example by using
- push @stylesheets, "gitweb-site.css";
- in the gitweb config file.
- * $logo_url, $logo_label
- URI and label (title) of GIT logo link (or your site logo, if you choose
- to use different logo image). By default they point to git homepage;
- in the past they pointed to git documentation at www.kernel.org.
- * $projects_list_description_width
- The width (in characters) of the projects list "Description" column.
- Longer descriptions will be cut (trying to cut at word boundary);
- full description is available as 'title' attribute (usually shown on
- mouseover). By default set to 25, which might be too small if you
- use long project descriptions.
- * @git_base_url_list
- List of git base URLs used for URL to where fetch project from, shown
- in project summary page. Full URL is "$git_base_url/$project".
- You can setup multiple base URLs (for example one for git:// protocol
- access, and one for http:// "dumb" protocol access). Note that per
- repository configuration in 'cloneurl' file, or as values of gitweb.url
- project config.
- * $default_blob_plain_mimetype
- Default mimetype for blob_plain (raw) view, if mimetype checking
- doesn't result in some other type; by default 'text/plain'.
- * $default_text_plain_charset
- Default charset for text files. If not set, web server configuration
- would be used.
- * $mimetypes_file
- File to use for (filename extension based) guessing of MIME types before
- trying /etc/mime.types. Path, if relative, is taken currently as
- relative to the current git repository.
- * $fallback_encoding
- Gitweb assumes this charset if line contains non-UTF-8 characters.
- Fallback decoding is used without error checking, so it can be even
- 'utf-8'. Value must be valid encoding; see Encoding::Supported(3pm) man
- page for a list. By default 'latin1', aka. 'iso-8859-1'.
- * @diff_opts
- Rename detection options for git-diff and git-diff-tree. By default
- ('-M'); set it to ('-C') or ('-C', '-C') to also detect copies, or
- set it to () if you don't want to have renames detection.
- * $prevent_xss
- If true, some gitweb features are disabled to prevent content in
- repositories from launching cross-site scripting (XSS) attacks. Set this
- to true if you don't trust the content of your repositories. The default
- is false.
- * $maxload
- Used to set the maximum load that we will still respond to gitweb queries.
- If server load exceed this value then return "503 Service Unavaliable" error.
- Server load is taken to be 0 if gitweb cannot determine its value. Set it to
- undefined value to turn it off. The default is 300.
-
-
-Projects list file format
-~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Instead of having gitweb find repositories by scanning filesystem starting
-from $projectroot (or $projects_list, if it points to directory), you can
-provide list of projects by setting $projects_list to a text file with list
-of projects (and some additional info). This file uses the following
-format:
-
-One record (for project / repository) per line, whitespace separated fields;
-does not support (at least for now) lines continuation (newline escaping).
-Leading and trailing whitespace are ignored, any run of whitespace can be
-used as field separator (rules for Perl's "split(' ', $line)"). Keyed by
-the first field, which is project name, i.e. path to repository GIT_DIR
-relative to $projectroot. Fields use modified URI encoding, defined in
-RFC 3986, section 2.1 (Percent-Encoding), or rather "Query string encoding"
-(see http://en.wikipedia.org/wiki/Query_string#URL_encoding), the difference
-being that SP (' ') can be encoded as '+' (and therefore '+' has to be also
-percent-encoded). Reserved characters are: '%' (used for encoding), '+'
-(can be used to encode SPACE), all whitespace characters as defined in Perl,
-including SP, TAB and LF, (used to separate fields in a record).
-
-Currently list of fields is
- * <repository path> - path to repository GIT_DIR, relative to $projectroot
- * <repository owner> - displayed as repository owner, preferably full name,
- or email, or both
-
-You can additionally use $projects_list file to limit which repositories
-are visible, and together with $strict_export to limit access to
-repositories (see "Gitweb repositories" section in gitweb/INSTALL).
-
-
-Per-repository gitweb configuration
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-You can also configure individual repositories shown in gitweb by creating
-file in the GIT_DIR of git repository, or by setting some repo configuration
-variable (in GIT_DIR/config).
-
-You can use the following files in repository:
- * README.html
- A .html file (HTML fragment) which is included on the gitweb project
- summary page inside <div> block element. You can use it for longer
- description of a project, to provide links (for example to project's
- homepage), etc. This is recognized only if XSS prevention is off
- ($prevent_xss is false); a way to include a readme safely when XSS
- prevention is on may be worked out in the future.
- * description (or gitweb.description)
- Short (shortened by default to 25 characters in the projects list page)
- single line description of a project (of a repository). Plain text file;
- HTML will be escaped. By default set to
- Unnamed repository; edit this file to name it for gitweb.
- from the template during repository creation. You can use the
- gitweb.description repo configuration variable, but the file takes
- precedence.
- * cloneurl (or multiple-valued gitweb.url)
- File with repository URL (used for clone and fetch), one per line.
- Displayed in the project summary page. You can use multiple-valued
- gitweb.url repository configuration variable for that, but the file
- takes precedence.
- * gitweb.owner
- You can use the gitweb.owner repository configuration variable to set
- repository's owner. It is displayed in the project list and summary
- page. If it's not set, filesystem directory's owner is used
- (via GECOS field / real name field from getpwiud(3)).
- * various gitweb.* config variables (in config)
- Read description of %feature hash for detailed list, and some
- descriptions.
-
-
-Webserver configuration
------------------------
-
-If you want to have one URL for both gitweb and your http://
-repositories, you can configure apache like this:
-
-<VirtualHost *:80>
- ServerName git.example.org
- DocumentRoot /pub/git
- SetEnv GITWEB_CONFIG /etc/gitweb.conf
- RewriteEngine on
- # make the front page an internal rewrite to the gitweb script
- RewriteRule ^/$ /cgi-bin/gitweb.cgi
- # make access for "dumb clients" work
- RewriteRule ^/(.*\.git/(?!/?(HEAD|info|objects|refs)).*)?$ /cgi-bin/gitweb.cgi%{REQUEST_URI} [L,PT]
-</VirtualHost>
+1. built-in values (some set during build stage),
+2. common system-wide configuration file (`GITWEB_CONFIG_COMMON`,
+ defaults to '/etc/gitweb-common.conf'),
+3. either per-instance configuration file (`GITWEB_CONFIG`, defaults to
+ 'gitweb_config.perl' in the same directory as the installed gitweb),
+ or if it does not exists then system-wide configuration file
+ (`GITWEB_CONFIG_SYSTEM`, defaults to '/etc/gitweb.conf').
-The above configuration expects your public repositories to live under
-/pub/git and will serve them as http://git.domain.org/dir-under-pub-git,
-both as cloneable GIT URL and as browseable gitweb interface.
-If you then start your git-daemon with --base-path=/pub/git --export-all
-then you can even use the git:// URL with exactly the same path.
+Values obtained in later configuration files override values obtained earlier
+in above sequence.
-Setting the environment variable GITWEB_CONFIG will tell gitweb to use
-the named file (i.e. in this example /etc/gitweb.conf) as a
-configuration for gitweb. Perl variables defined in here will
-override the defaults given at the head of the gitweb.perl (or
-gitweb.cgi). Look at the comments in that file for information on
-which variables and what they mean.
+You can read defaults in system-wide GITWEB_CONFIG_SYSTEM from GITWEB_CONFIG
+by adding
-If you use the rewrite rules from the example you'll likely also need
-something like the following in your gitweb.conf (or gitweb_config.perl) file:
+ read_config_file($GITWEB_CONFIG_SYSTEM);
- @stylesheets = ("/some/absolute/path/gitweb.css");
- $my_uri = "/";
- $home_link = "/";
+at very beginning of per-instance GITWEB_CONFIG file. In this case
+settings in said per-instance file will override settings from
+system-wide configuration file. Note that read_config_file checks
+itself that the $GITWEB_CONFIG_SYSTEM file exists.
+The most notable thing that is not configurable at compile time are the
+optional features, stored in the '%features' variable.
-PATH_INFO usage
------------------------
-If you enable PATH_INFO usage in gitweb by putting
-
- $feature{'pathinfo'}{'default'} = [1];
-
-in your gitweb.conf, it is possible to set up your server so that it
-consumes and produces URLs in the form
-
-http://git.example.com/project.git/shortlog/sometag
-
-by using a configuration such as the following, that assumes that
-/var/www/gitweb is the DocumentRoot of your webserver, and that it
-contains the gitweb.cgi script and complementary static files
-(stylesheet, favicon):
-
-<VirtualHost *:80>
- ServerAlias git.example.com
-
- DocumentRoot /var/www/gitweb
-
- <Directory /var/www/gitweb>
- Options ExecCGI
- AddHandler cgi-script cgi
-
- DirectoryIndex gitweb.cgi
-
- RewriteEngine On
- RewriteCond %{REQUEST_FILENAME} !-f
- RewriteCond %{REQUEST_FILENAME} !-d
- RewriteRule ^.* /gitweb.cgi/$0 [L,PT]
- </Directory>
-</VirtualHost>
-
-The rewrite rule guarantees that existing static files will be properly
-served, whereas any other URL will be passed to gitweb as PATH_INFO
-parameter.
-
-Notice that in this case you don't need special settings for
-@stylesheets, $my_uri and $home_link, but you lose "dumb client" access
-to your project .git dirs. A possible workaround for the latter is the
-following: in your project root dir (e.g. /pub/git) have the projects
-named without a .git extension (e.g. /pub/git/project instead of
-/pub/git/project.git) and configure Apache as follows:
-
-<VirtualHost *:80>
- ServerAlias git.example.com
-
- DocumentRoot /var/www/gitweb
-
- AliasMatch ^(/.*?)(\.git)(/.*)?$ /pub/git$1$3
- <Directory /var/www/gitweb>
- Options ExecCGI
- AddHandler cgi-script cgi
-
- DirectoryIndex gitweb.cgi
-
- RewriteEngine On
- RewriteCond %{REQUEST_FILENAME} !-f
- RewriteCond %{REQUEST_FILENAME} !-d
- RewriteRule ^.* /gitweb.cgi/$0 [L,PT]
- </Directory>
-</VirtualHost>
-
-The additional AliasMatch makes it so that
-
-http://git.example.com/project.git
-
-will give raw access to the project's git dir (so that the project can
-be cloned), while
-
-http://git.example.com/project
-
-will provide human-friendly gitweb access.
+Ultimate description on how to reconfigure the default features setting
+in your `GITWEB_CONFIG` or per-project in `project.git/config` can be found
+as comments inside 'gitweb.cgi'.
-This solution is not 100% bulletproof, in the sense that if some project
-has a named ref (branch, tag) starting with 'git/', then paths such as
+See also gitweb.conf(5) manpage.
-http://git.example.com/project/command/abranch..git/abranch
-will fail with a 404 error.
+Web server configuration
+------------------------
+Gitweb can be run as CGI script, as legacy mod_perl application (using
+ModPerl::Registry), and as FastCGI script. You can find some simple examples
+in "Example web server configuration" section in INSTALL file for gitweb (in
+gitweb/INSTALL).
+See "Webserver configuration" and "Advanced web server setup" sections in
+gitweb(1) manpage.
+AUTHORS
+-------
Originally written by:
Kay Sievers <kay.sievers@vrfy.org>