gitweb: Describe CSSMIN and JSMIN in gitweb/INSTALL
[git/git.git] / gitweb / INSTALL
1 GIT web Interface (gitweb) Installation
2 =======================================
3
4 First you have to generate gitweb.cgi from gitweb.perl using
5 "make gitweb", then "make install-gitweb" appropriate files
6 (gitweb.cgi, gitweb.js, gitweb.css, git-logo.png and git-favicon.png)
7 to their destination. For example if git was (or is) installed with
8 /usr prefix and gitwebdir is /var/www/cgi-bin, you can do
9
10 $ make prefix=/usr gitweb ;# as yourself
11 # make gitwebdir=/var/www/cgi-bin install-gitweb ;# as root
12
13 Alternatively you can use autoconf generated ./configure script to
14 set up path to git binaries (via config.mak.autogen), so you can write
15 instead
16
17 $ make configure ;# as yourself
18 $ ./configure --prefix=/usr ;# as yourself
19 $ make gitweb ;# as yourself
20 # make gitwebdir=/var/www/cgi-bin \
21 install-gitweb ;# as root
22
23 The above example assumes that your web server is configured to run
24 [executable] files in /var/www/cgi-bin/ as server scripts (as CGI
25 scripts).
26
27
28 Build time configuration
29 ------------------------
30
31 See also "How to configure gitweb for your local system" section below.
32
33 - There are many configuration variables which affect building of
34 gitweb.cgi; see "default configuration for gitweb" section in main
35 (top dir) Makefile, and instructions for building gitweb target.
36
37 One of the most important is where to find the git wrapper binary. Gitweb
38 tries to find the git wrapper at $(bindir)/git, so you have to set $bindir
39 when building gitweb.cgi, or $prefix from which $bindir is derived. If
40 you build and install gitweb together with the rest of the git suite,
41 there should be no problems. Otherwise, if git was for example
42 installed from a binary package, you have to set $prefix (or $bindir)
43 accordingly.
44
45 - Another important issue is where are git repositories you want to make
46 available to gitweb. By default gitweb searches for repositories under
47 /pub/git; if you want to have projects somewhere else, like /home/git,
48 use GITWEB_PROJECTROOT build configuration variable.
49
50 By default all git repositories under projectroot are visible and
51 available to gitweb. The list of projects is generated by default by
52 scanning the projectroot directory for git repositories. This can be
53 changed (configured) as described in "Gitweb repositories" section
54 below.
55
56 Note that gitweb deals directly with the object database, and does not
57 need a working directory; the name of the project is the name of its
58 repository object database, usually projectname.git for bare
59 repositories. If you want to provide gitweb access to non-bare (live)
60 repositories, you can make projectname.git a symbolic link under
61 projectroot linking to projectname/.git (but it is just
62 a suggestion).
63
64 - You can control where gitweb tries to find its main CSS style file,
65 its JavaScript file, its favicon and logo with the GITWEB_CSS, GITWEB_JS
66 GITWEB_FAVICON and GITWEB_LOGO build configuration variables. By default
67 gitweb tries to find them in the same directory as gitweb.cgi script.
68
69 - You can optionally generate minified versions of gitweb.js and gitweb.css
70 by defining the JSMIN and CSSMIN build configuration variables. By default
71 the non-minified versions will be used. NOTE: if you enable this option,
72 substitute gitweb.min.js and gitweb.min.css for all uses of gitweb.js and
73 gitweb.css in the help files.
74
75
76 How to configure gitweb for your local system
77 ---------------------------------------------
78
79 You can specify the following configuration variables when building GIT:
80
81 * GIT_BINDIR
82 Points where to find the git executable. You should set it up to
83 the place where the git binary was installed (usually /usr/bin) if you
84 don't install git from sources together with gitweb. [Default: $(bindir)]
85 * GITWEB_SITENAME
86 Shown in the title of all generated pages, defaults to the server name
87 (SERVER_NAME CGI environment variable) if not set. [No default]
88 * GITWEB_PROJECTROOT
89 The root directory for all projects shown by gitweb. Must be set
90 correctly for gitweb to find repositories to display. See also
91 "Gitweb repositories" in the INSTALL file for gitweb. [Default: /pub/git]
92 * GITWEB_PROJECT_MAXDEPTH
93 The filesystem traversing limit for getting the project list; the number
94 is taken as depth relative to the projectroot. It is used when
95 GITWEB_LIST is a directory (or is not set; then project root is used).
96 This is meant to speed up project listing on large work trees by limiting
97 search depth. [Default: 2007]
98 * GITWEB_LIST
99 Points to a directory to scan for projects (defaults to project root
100 if not set / if empty) or to a file with explicit listing of projects
101 (together with projects' ownership). See "Generating projects list
102 using gitweb" in INSTALL file for gitweb to find out how to generate
103 such file from scan of a directory. [No default, which means use root
104 directory for projects]
105 * GITWEB_EXPORT_OK
106 Show repository only if this file exists (in repository). Only
107 effective if this variable evaluates to true. [No default / Not set]
108 * GITWEB_STRICT_EXPORT
109 Only allow viewing of repositories also shown on the overview page.
110 This for example makes GITWEB_EXPORT_OK to decide if repository is
111 available and not only if it is shown. If GITWEB_LIST points to
112 file with list of project, only those repositories listed would be
113 available for gitweb. [No default]
114 * GITWEB_HOMETEXT
115 Points to an .html file which is included on the gitweb project
116 overview page ('projects_list' view), if it exists. Relative to
117 gitweb.cgi script. [Default: indextext.html]
118 * GITWEB_SITE_HEADER
119 Filename of html text to include at top of each page. Relative to
120 gitweb.cgi script. [No default]
121 * GITWEB_SITE_FOOTER
122 Filename of html text to include at bottom of each page. Relative to
123 gitweb.cgi script. [No default]
124 * GITWEB_HOME_LINK_STR
125 String of the home link on top of all pages, leading to $home_link
126 (usually main gitweb page, which means projects list). Used as first
127 part of gitweb view "breadcrumb trail": <home> / <project> / <view>.
128 [Default: projects]
129 * GITWEB_SITENAME
130 Name of your site or organization to appear in page titles. Set it
131 to something descriptive for clearer bookmarks etc. If not set
132 (if empty) gitweb uses "$SERVER_NAME Git", or "Untitled Git" if
133 SERVER_NAME CGI environment variable is not set (e.g. if running
134 gitweb as standalone script). [No default]
135 * GITWEB_BASE_URL
136 Git base URLs used for URL to where fetch project from, i.e. full
137 URL is "$git_base_url/$project". Shown on projects summary page.
138 Repository URL for project can be also configured per repository; this
139 takes precedence over URLs composed from base URL and a project name.
140 Note that you can setup multiple base URLs (for example one for
141 git:// protocol access, another for http:// access) from the gitweb
142 config file. [No default]
143 * GITWEB_CSS
144 Points to the location where you put gitweb.css on your web server
145 (or to be more generic, the URI of gitweb stylesheet). Relative to the
146 base URI of gitweb. Note that you can setup multiple stylesheets from
147 the gitweb config file. [Default: static/gitweb.css (or
148 static/gitweb.min.css if the CSSMIN variable is defined / CSS minifier
149 is used)]
150 * GITWEB_JS
151 Points to the location where you put gitweb.js on your web server
152 (or to be more generic URI of JavaScript code used by gitweb).
153 Relative to base URI of gitweb. [Default: static/gitweb.js (or
154 static/gitweb.min.js if JSMIN build variable is defined / JavaScript
155 minifier is used)]
156 * CSSMIN, JSMIN
157 Invocation of a CSS minifier or a JavaScript minifier, respectively,
158 working as a filter (source on standard input, minified result on
159 standard output). If set, it is used to generate a minified version of
160 'static/gitweb.css' or 'static/gitweb.js', respectively. *Note* that
161 minified files would have *.min.css and *.min.js extension, which is
162 important if you also set GITWEB_CSS and/or GITWEB_JS. [No default]
163 * GITWEB_LOGO
164 Points to the location where you put git-logo.png on your web server
165 (or to be more generic URI of logo, 72x27 size, displayed in top right
166 corner of each gitweb page, and used as logo for Atom feed). Relative
167 to base URI of gitweb. [Default: static/git-logo.png]
168 * GITWEB_FAVICON
169 Points to the location where you put git-favicon.png on your web server
170 (or to be more generic URI of favicon, assumed to be image/png type;
171 web browsers that support favicons (website icons) may display them
172 in the browser's URL bar and next to site name in bookmarks). Relative
173 to base URI of gitweb. [Default: static/git-favicon.png]
174 * GITWEB_CONFIG
175 This Perl file will be loaded using 'do' and can be used to override any
176 of the options above as well as some other options -- see the "Runtime
177 gitweb configuration" section below, and top of 'gitweb.cgi' for their
178 full list and description. If the environment variable GITWEB_CONFIG
179 is set when gitweb.cgi is executed, then the file specified in the
180 environment variable will be loaded instead of the file specified
181 when gitweb.cgi was created. [Default: gitweb_config.perl]
182 * GITWEB_CONFIG_SYSTEM
183 This Perl file will be loaded using 'do' as a fallback if GITWEB_CONFIG
184 does not exist. If the environment variable GITWEB_CONFIG_SYSTEM is set
185 when gitweb.cgi is executed, then the file specified in the environment
186 variable will be loaded instead of the file specified when gitweb.cgi was
187 created. [Default: /etc/gitweb.conf]
188 * HIGHLIGHT_BIN
189 Path to the highlight executable to use (must be the one from
190 http://www.andre-simon.de due to assumptions about parameters and output).
191 Useful if highlight is not installed on your webserver's PATH.
192 [Default: highlight]
193
194 Build example
195 ~~~~~~~~~~~~~
196
197 - To install gitweb to /var/www/cgi-bin/gitweb/, when git wrapper
198 is installed at /usr/local/bin/git, the repositories (projects)
199 we want to display are under /home/local/scm, and you do not use
200 minifiers, you can do
201
202 make GITWEB_PROJECTROOT="/home/local/scm" \
203 GITWEB_JS="gitweb/static/gitweb.js" \
204 GITWEB_CSS="gitweb/static/gitweb.css" \
205 GITWEB_LOGO="gitweb/static/git-logo.png" \
206 GITWEB_FAVICON="gitweb/static/git-favicon.png" \
207 bindir=/usr/local/bin \
208 gitweb
209
210 make gitwebdir=/var/www/cgi-bin/gitweb install-gitweb
211
212
213 Gitweb config file
214 ------------------
215
216 See also "Runtime gitweb configuration" section in README file
217 for gitweb (in gitweb/README).
218
219 - You can configure gitweb further using the gitweb configuration file;
220 by default this is a file named gitweb_config.perl in the same place as
221 gitweb.cgi script. You can control the default place for the config file
222 using the GITWEB_CONFIG build configuration variable, and you can set it
223 using the GITWEB_CONFIG environment variable. If this file does not
224 exist, gitweb looks for a system-wide configuration file, normally
225 /etc/gitweb.conf. You can change the default using the
226 GITWEB_CONFIG_SYSTEM build configuration variable, and override it
227 through the GITWEB_CONFIG_SYSTEM environment variable.
228
229 - The gitweb config file is a fragment of perl code. You can set variables
230 using "our $variable = value"; text from "#" character until the end
231 of a line is ignored. See perlsyn(1) for details.
232
233 See the top of gitweb.perl file for examples of customizable options.
234
235 Config file example
236 ~~~~~~~~~~~~~~~~~~~
237
238 To enable blame, pickaxe search, and snapshot support, while allowing
239 individual projects to turn them off, put the following in your
240 GITWEB_CONFIG file:
241
242 $feature{'blame'}{'default'} = [1];
243 $feature{'blame'}{'override'} = 1;
244
245 $feature{'pickaxe'}{'default'} = [1];
246 $feature{'pickaxe'}{'override'} = 1;
247
248 $feature{'snapshot'}{'default'} = ['zip', 'tgz'];
249 $feature{'snapshot'}{'override'} = 1;
250
251 If you allow overriding for the snapshot feature, you can specify which
252 snapshot formats are globally disabled. You can also add any command line
253 options you want (such as setting the compression level). For instance,
254 you can disable Zip compressed snapshots and set GZip to run at level 6 by
255 adding the following lines to your $GITWEB_CONFIG:
256
257 $known_snapshot_formats{'zip'}{'disabled'} = 1;
258 $known_snapshot_formats{'tgz'}{'compressor'} = ['gzip','-6'];
259
260
261 Gitweb repositories
262 -------------------
263
264 - By default all git repositories under projectroot are visible and
265 available to gitweb. The list of projects is generated by default by
266 scanning the projectroot directory for git repositories (for object
267 databases to be more exact).
268
269 You can provide a pre-generated list of [visible] repositories,
270 together with information about their owners (the project ownership
271 defaults to the owner of the repository directory otherwise), by setting
272 the GITWEB_LIST build configuration variable (or the $projects_list
273 variable in the gitweb config file) to point to a plain file.
274
275 Each line of the projects list file should consist of the url-encoded path
276 to the project repository database (relative to projectroot), followed
277 by the url-encoded project owner on the same line (separated by a space).
278 Spaces in both project path and project owner have to be encoded as either
279 '%20' or '+'.
280
281 Other characters that have to be url-encoded, i.e. replaced by '%'
282 followed by two-digit character number in octal, are: other whitespace
283 characters (because they are field separator in a record), plus sign '+'
284 (because it can be used as replacement for spaces), and percent sign '%'
285 (which is used for encoding / escaping).
286
287 You can generate the projects list index file using the project_index
288 action (the 'TXT' link on projects list page) directly from gitweb.
289
290 - By default, even if a project is not visible on projects list page, you
291 can view it nevertheless by hand-crafting a gitweb URL. You can set the
292 GITWEB_STRICT_EXPORT build configuration variable (or the $strict_export
293 variable in the gitweb config file) to only allow viewing of
294 repositories also shown on the overview page.
295
296 - Alternatively, you can configure gitweb to only list and allow
297 viewing of the explicitly exported repositories, via the
298 GITWEB_EXPORT_OK build configuration variable (or the $export_ok
299 variable in gitweb config file). If it evaluates to true, gitweb
300 shows repositories only if this file exists in its object database
301 (if directory has the magic file named $export_ok).
302
303 - Finally, it is possible to specify an arbitrary perl subroutine that
304 will be called for each project to determine if it can be exported.
305 The subroutine receives an absolute path to the project as its only
306 parameter.
307
308 For example, if you use mod_perl to run the script, and have dumb
309 http protocol authentication configured for your repositories, you
310 can use the following hook to allow access only if the user is
311 authorized to read the files:
312
313 $export_auth_hook = sub {
314 use Apache2::SubRequest ();
315 use Apache2::Const -compile => qw(HTTP_OK);
316 my $path = "$_[0]/HEAD";
317 my $r = Apache2::RequestUtil->request;
318 my $sub = $r->lookup_file($path);
319 return $sub->filename eq $path
320 && $sub->status == Apache2::Const::HTTP_OK;
321 };
322
323
324 Generating projects list using gitweb
325 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
326
327 We assume that GITWEB_CONFIG has its default Makefile value, namely
328 gitweb_config.perl. Put the following in gitweb_make_index.perl file:
329
330 $GITWEB_CONFIG = "gitweb_config.perl";
331 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
332
333 $projects_list = $projectroot;
334
335 Then create the following script to get list of project in the format
336 suitable for GITWEB_LIST build configuration variable (or
337 $projects_list variable in gitweb config):
338
339 #!/bin/sh
340
341 export GITWEB_CONFIG="gitweb_make_index.perl"
342 export GATEWAY_INTERFACE="CGI/1.1"
343 export HTTP_ACCEPT="*/*"
344 export REQUEST_METHOD="GET"
345 export QUERY_STRING="a=project_index"
346
347 perl -- /var/www/cgi-bin/gitweb.cgi
348
349
350 Requirements
351 ------------
352
353 - Core git tools
354 - Perl
355 - Perl modules: CGI, Encode, Fcntl, File::Find, File::Basename.
356 - web server
357
358 The following optional Perl modules are required for extra features
359 - Digest::MD5 - for gravatar support
360 - CGI::Fast and FCGI - for running gitweb as FastCGI script
361 - HTML::TagCloud - for fancy tag cloud in project list view
362 - HTTP::Date or Time::ParseDate - to support If-Modified-Since for feeds
363
364
365 Example web server configuration
366 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
367
368 See also "Webserver configuration" section in README file for gitweb
369 (in gitweb/README).
370
371
372 - Apache2, gitweb installed as CGI script,
373 under /var/www/cgi-bin/
374
375 ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"
376
377 <Directory "/var/www/cgi-bin">
378 Options Indexes FollowSymlinks ExecCGI
379 AllowOverride None
380 Order allow,deny
381 Allow from all
382 </Directory>
383
384 - Apache2, gitweb installed as mod_perl legacy script,
385 under /var/www/perl/
386
387 Alias /perl "/var/www/perl"
388
389 <Directory "/var/www/perl">
390 SetHandler perl-script
391 PerlResponseHandler ModPerl::Registry
392 PerlOptions +ParseHeaders
393 Options Indexes FollowSymlinks +ExecCGI
394 AllowOverride None
395 Order allow,deny
396 Allow from all
397 </Directory>