1#!/bin/sh
2#
3# Copyright (c) 2006 Eric Wong
4#
5PERL='@@PERL@@'
7OPTIONS_KEEPDASHDASH=
8OPTIONS_STUCKLONG=
9OPTIONS_SPEC="\
10git instaweb [options] (--start | --stop | --restart)
11--
12l,local only bind on 127.0.0.1
13p,port= the port to bind to
14d,httpd= the command to launch
15b,browser= the browser to launch
16m,module-path= the module path (only needed for apache2)
17 Action
18stop stop the web server
19start start the web server
20restart restart the web server
21"
22SUBDIRECTORY_OK=Yes
24. git-sh-setup
25fqgitdir="$GIT_DIR"
27local="$(git config --bool --get instaweb.local)"
28httpd="$(git config --get instaweb.httpd)"
29root="$(git config --get instaweb.gitwebdir)"
30port=$(git config --get instaweb.port)
31module_path="$(git config --get instaweb.modulepath)"
32action="browse"
33conf="$GIT_DIR/gitweb/httpd.conf"
35# Defaults:
37# if installed, it doesn't need further configuration (module_path)
39test -z "$httpd" && httpd='lighttpd -f'
40# Default is @@GITWEBDIR@@
42test -z "$root" && root='@@GITWEBDIR@@'
43# any untaken local port will do...
45test -z "$port" && port=1234
46resolve_full_httpd () {
48 case "$httpd" in
49 *apache2*|*lighttpd*|*httpd*)
50 # yes, *httpd* covers *lighttpd* above, but it is there for clarity
51 # ensure that the apache2/lighttpd command ends with "-f"
52 if ! echo "$httpd" | sane_grep -- '-f *$' >/dev/null 2>&1
53 then
54 httpd="$httpd -f"
55 fi
56 ;;
57 *plackup*)
58 # server is started by running via generated gitweb.psgi in $fqgitdir/gitweb
59 full_httpd="$fqgitdir/gitweb/gitweb.psgi"
60 httpd_only="${httpd%% *}" # cut on first space
61 return
62 ;;
63 *webrick*)
64 # server is started by running via generated webrick.rb in
65 # $fqgitdir/gitweb
66 full_httpd="$fqgitdir/gitweb/webrick.rb"
67 httpd_only="${httpd%% *}" # cut on first space
68 return
69 ;;
70 esac
71 httpd_only="$(echo $httpd | cut -f1 -d' ')"
73 if case "$httpd_only" in /*) : ;; *) which $httpd_only >/dev/null 2>&1;; esac
74 then
75 full_httpd=$httpd
76 else
77 # many httpds are installed in /usr/sbin or /usr/local/sbin
78 # these days and those are not in most users $PATHs
79 # in addition, we may have generated a server script
80 # in $fqgitdir/gitweb.
81 for i in /usr/local/sbin /usr/sbin "$root" "$fqgitdir/gitweb"
82 do
83 if test -x "$i/$httpd_only"
84 then
85 full_httpd=$i/$httpd
86 return
87 fi
88 done
89 echo >&2 "$httpd_only not found. Install $httpd_only or use" \
91 "--httpd to specify another httpd daemon."
92 exit 1
93 fi
94}
95start_httpd () {
97 if test -f "$fqgitdir/pid"; then
98 say "Instance already running. Restarting..."
99 stop_httpd
100 fi
101 # here $httpd should have a meaningful value
103 resolve_full_httpd
104 mkdir -p "$fqgitdir/gitweb/$httpd_only"
105 conf="$fqgitdir/gitweb/$httpd_only.conf"
106 # generate correct config file if it doesn't exist
108 test -f "$conf" || configure_httpd
109 test -f "$fqgitdir/gitweb/gitweb_config.perl" || gitweb_conf
110 # don't quote $full_httpd, there can be arguments to it (-f)
112 case "$httpd" in
113 *mongoose*|*plackup*)
114 #These servers don't have a daemon mode so we'll have to fork it
115 $full_httpd "$conf" &
116 #Save the pid before doing anything else (we'll print it later)
117 pid=$!
118 if test $? != 0; then
120 echo "Could not execute http daemon $httpd."
121 exit 1
122 fi
123 cat > "$fqgitdir/pid" <<EOF
125$pid
126EOF
127 ;;
128 *)
129 $full_httpd "$conf"
130 if test $? != 0; then
131 echo "Could not execute http daemon $httpd."
132 exit 1
133 fi
134 ;;
135 esac
136}
137stop_httpd () {
139 test -f "$fqgitdir/pid" && kill $(cat "$fqgitdir/pid")
140 rm -f "$fqgitdir/pid"
141}
142httpd_is_ready () {
144 "$PERL" -MIO::Socket::INET -e "
145local \$| = 1; # turn on autoflush
146exit if (IO::Socket::INET->new('127.0.0.1:$port'));
147print 'Waiting for \'$httpd\' to start ..';
148do {
149 print '.';
150 sleep(1);
151} until (IO::Socket::INET->new('127.0.0.1:$port'));
152print qq! (done)\n!;
153"
154}
155while test $# != 0
157do
158 case "$1" in
159 --stop|stop)
160 action="stop"
161 ;;
162 --start|start)
163 action="start"
164 ;;
165 --restart|restart)
166 action="restart"
167 ;;
168 -l|--local)
169 local=true
170 ;;
171 -d|--httpd)
172 shift
173 httpd="$1"
174 ;;
175 -b|--browser)
176 shift
177 browser="$1"
178 ;;
179 -p|--port)
180 shift
181 port="$1"
182 ;;
183 -m|--module-path)
184 shift
185 module_path="$1"
186 ;;
187 --)
188 ;;
189 *)
190 usage
191 ;;
192 esac
193 shift
194done
195mkdir -p "$GIT_DIR/gitweb/tmp"
197GIT_EXEC_PATH="$(git --exec-path)"
198GIT_DIR="$fqgitdir"
199GITWEB_CONFIG="$fqgitdir/gitweb/gitweb_config.perl"
200export GIT_EXEC_PATH GIT_DIR GITWEB_CONFIG
201webrick_conf () {
203 # webrick seems to have no way of passing arbitrary environment
204 # variables to the underlying CGI executable, so we wrap the
205 # actual gitweb.cgi using a shell script to force it
206 wrapper="$fqgitdir/gitweb/$httpd/wrapper.sh"
207 cat > "$wrapper" <<EOF
208#!@SHELL_PATH@
209# we use this shell script wrapper around the real gitweb.cgi since
210# there appears to be no other way to pass arbitrary environment variables
211# into the CGI process
212GIT_EXEC_PATH=$GIT_EXEC_PATH GIT_DIR=$GIT_DIR GITWEB_CONFIG=$GITWEB_CONFIG
213export GIT_EXEC_PATH GIT_DIR GITWEB_CONFIG
214exec $root/gitweb.cgi
215EOF
216 chmod +x "$wrapper"
217 # This assumes _ruby_ is in the user's $PATH. that's _one_
219 # portable way to run ruby, which could be installed anywhere, really.
220 # generate a standalone server script in $fqgitdir/gitweb.
221 cat >"$fqgitdir/gitweb/$httpd.rb" <<EOF
222#!/usr/bin/env ruby
223require 'webrick'
224require 'logger'
225options = {
226 :Port => $port,
227 :DocumentRoot => "$root",
228 :Logger => Logger.new('$fqgitdir/gitweb/error.log'),
229 :AccessLog => [
230 [ Logger.new('$fqgitdir/gitweb/access.log'),
231 WEBrick::AccessLog::COMBINED_LOG_FORMAT ]
232 ],
233 :DirectoryIndex => ["gitweb.cgi"],
234 :CGIInterpreter => "$wrapper",
235 :StartCallback => lambda do
236 File.open("$fqgitdir/pid", "w") { |f| f.puts Process.pid }
237 end,
238 :ServerType => WEBrick::Daemon,
239}
240options[:BindAddress] = '127.0.0.1' if "$local" == "true"
241server = WEBrick::HTTPServer.new(options)
242['INT', 'TERM'].each do |signal|
243 trap(signal) {server.shutdown}
244end
245server.start
246EOF
247 chmod +x "$fqgitdir/gitweb/$httpd.rb"
248 # configuration is embedded in server script file, webrick.rb
249 rm -f "$conf"
250}
251lighttpd_conf () {
253 cat > "$conf" <<EOF
254server.document-root = "$root"
255server.port = $port
256server.modules = ( "mod_setenv", "mod_cgi" )
257server.indexfiles = ( "gitweb.cgi" )
258server.pid-file = "$fqgitdir/pid"
259server.errorlog = "$fqgitdir/gitweb/$httpd_only/error.log"
260# to enable, add "mod_access", "mod_accesslog" to server.modules
262# variable above and uncomment this
263#accesslog.filename = "$fqgitdir/gitweb/$httpd_only/access.log"
264setenv.add-environment = ( "PATH" => env.PATH, "GITWEB_CONFIG" => env.GITWEB_CONFIG )
266cgi.assign = ( ".cgi" => "" )
268# mimetype mapping
270mimetype.assign = (
271 ".pdf" => "application/pdf",
272 ".sig" => "application/pgp-signature",
273 ".spl" => "application/futuresplash",
274 ".class" => "application/octet-stream",
275 ".ps" => "application/postscript",
276 ".torrent" => "application/x-bittorrent",
277 ".dvi" => "application/x-dvi",
278 ".gz" => "application/x-gzip",
279 ".pac" => "application/x-ns-proxy-autoconfig",
280 ".swf" => "application/x-shockwave-flash",
281 ".tar.gz" => "application/x-tgz",
282 ".tgz" => "application/x-tgz",
283 ".tar" => "application/x-tar",
284 ".zip" => "application/zip",
285 ".mp3" => "audio/mpeg",
286 ".m3u" => "audio/x-mpegurl",
287 ".wma" => "audio/x-ms-wma",
288 ".wax" => "audio/x-ms-wax",
289 ".ogg" => "application/ogg",
290 ".wav" => "audio/x-wav",
291 ".gif" => "image/gif",
292 ".jpg" => "image/jpeg",
293 ".jpeg" => "image/jpeg",
294 ".png" => "image/png",
295 ".xbm" => "image/x-xbitmap",
296 ".xpm" => "image/x-xpixmap",
297 ".xwd" => "image/x-xwindowdump",
298 ".css" => "text/css",
299 ".html" => "text/html",
300 ".htm" => "text/html",
301 ".js" => "text/javascript",
302 ".asc" => "text/plain",
303 ".c" => "text/plain",
304 ".cpp" => "text/plain",
305 ".log" => "text/plain",
306 ".conf" => "text/plain",
307 ".text" => "text/plain",
308 ".txt" => "text/plain",
309 ".dtd" => "text/xml",
310 ".xml" => "text/xml",
311 ".mpeg" => "video/mpeg",
312 ".mpg" => "video/mpeg",
313 ".mov" => "video/quicktime",
314 ".qt" => "video/quicktime",
315 ".avi" => "video/x-msvideo",
316 ".asf" => "video/x-ms-asf",
317 ".asx" => "video/x-ms-asf",
318 ".wmv" => "video/x-ms-wmv",
319 ".bz2" => "application/x-bzip",
320 ".tbz" => "application/x-bzip-compressed-tar",
321 ".tar.bz2" => "application/x-bzip-compressed-tar",
322 "" => "text/plain"
323 )
324EOF
325 test x"$local" = xtrue && echo 'server.bind = "127.0.0.1"' >> "$conf"
326}
327apache2_conf () {
329 if test -z "$module_path"
330 then
331 test -d "/usr/lib/httpd/modules" &&
332 module_path="/usr/lib/httpd/modules"
333 test -d "/usr/lib/apache2/modules" &&
334 module_path="/usr/lib/apache2/modules"
335 fi
336 bind=
337 test x"$local" = xtrue && bind='127.0.0.1:'
338 echo 'text/css css' > "$fqgitdir/mime.types"
339 cat > "$conf" <<EOF
340ServerName "git-instaweb"
341ServerRoot "$root"
342DocumentRoot "$root"
343ErrorLog "$fqgitdir/gitweb/$httpd_only/error.log"
344CustomLog "$fqgitdir/gitweb/$httpd_only/access.log" combined
345PidFile "$fqgitdir/pid"
346Listen $bind$port
347EOF
348 for mod in mpm_event mpm_prefork mpm_worker
350 do
351 if test -e $module_path/mod_${mod}.so
352 then
353 echo "LoadModule ${mod}_module " \
354 "$module_path/mod_${mod}.so" >> "$conf"
355 # only one mpm module permitted
356 break
357 fi
358 done
359 for mod in mime dir env log_config authz_core
360 do
361 if test -e $module_path/mod_${mod}.so
362 then
363 echo "LoadModule ${mod}_module " \
364 "$module_path/mod_${mod}.so" >> "$conf"
365 fi
366 done
367 cat >> "$conf" <<EOF
368TypesConfig "$fqgitdir/mime.types"
369DirectoryIndex gitweb.cgi
370EOF
371 # check to see if Dennis Stosberg's mod_perl compatibility patch
373 # (<20060621130708.Gcbc6e5c@leonov.stosberg.net>) has been applied
374 if test -f "$module_path/mod_perl.so" &&
375 sane_grep 'MOD_PERL' "$root/gitweb.cgi" >/dev/null
376 then
377 # favor mod_perl if available
378 cat >> "$conf" <<EOF
379LoadModule perl_module $module_path/mod_perl.so
380PerlPassEnv GIT_DIR
381PerlPassEnv GIT_EXEC_PATH
382PerlPassEnv GITWEB_CONFIG
383<Location /gitweb.cgi>
384 SetHandler perl-script
385 PerlResponseHandler ModPerl::Registry
386 PerlOptions +ParseHeaders
387 Options +ExecCGI
388</Location>
389EOF
390 else
391 # plain-old CGI
392 resolve_full_httpd
393 list_mods=$(echo "$full_httpd" | sed 's/-f$/-l/')
394 $list_mods | sane_grep 'mod_cgi\.c' >/dev/null 2>&1 || \
395 if test -f "$module_path/mod_cgi.so"
396 then
397 echo "LoadModule cgi_module $module_path/mod_cgi.so" >> "$conf"
398 else
399 $list_mods | grep 'mod_cgid\.c' >/dev/null 2>&1 || \
400 if test -f "$module_path/mod_cgid.so"
401 then
402 echo "LoadModule cgid_module $module_path/mod_cgid.so" \
403 >> "$conf"
404 else
405 echo "You have no CGI support!"
406 exit 2
407 fi
408 echo "ScriptSock logs/gitweb.sock" >> "$conf"
409 fi
410 cat >> "$conf" <<EOF
411PassEnv GIT_DIR
412PassEnv GIT_EXEC_PATH
413PassEnv GITWEB_CONFIG
414AddHandler cgi-script .cgi
415<Location /gitweb.cgi>
416 Options +ExecCGI
417</Location>
418EOF
419 fi
420}
421mongoose_conf() {
423 cat > "$conf" <<EOF
424# Mongoose web server configuration file.
425# Lines starting with '#' and empty lines are ignored.
426# For detailed description of every option, visit
427# http://code.google.com/p/mongoose/wiki/MongooseManual
428root $root
430ports $port
431index_files gitweb.cgi
432#ssl_cert $fqgitdir/gitweb/ssl_cert.pem
433error_log $fqgitdir/gitweb/$httpd_only/error.log
434access_log $fqgitdir/gitweb/$httpd_only/access.log
435#cgi setup
437cgi_env PATH=$PATH,GIT_DIR=$GIT_DIR,GIT_EXEC_PATH=$GIT_EXEC_PATH,GITWEB_CONFIG=$GITWEB_CONFIG
438cgi_interp $PERL
439cgi_ext cgi,pl
440# mimetype mapping
442mime_types .gz=application/x-gzip,.tar.gz=application/x-tgz,.tgz=application/x-tgz,.tar=application/x-tar,.zip=application/zip,.gif=image/gif,.jpg=image/jpeg,.jpeg=image/jpeg,.png=image/png,.css=text/css,.html=text/html,.htm=text/html,.js=text/javascript,.c=text/plain,.cpp=text/plain,.log=text/plain,.conf=text/plain,.text=text/plain,.txt=text/plain,.dtd=text/xml,.bz2=application/x-bzip,.tbz=application/x-bzip-compressed-tar,.tar.bz2=application/x-bzip-compressed-tar
443EOF
444}
445plackup_conf () {
447 # generate a standalone 'plackup' server script in $fqgitdir/gitweb
448 # with embedded configuration; it does not use "$conf" file
449 cat > "$fqgitdir/gitweb/gitweb.psgi" <<EOF
450#!$PERL
451# gitweb - simple web interface to track changes in git repositories
453# PSGI wrapper and server starter (see http://plackperl.org)
454use strict;
456use IO::Handle;
458use Plack::MIME;
459use Plack::Builder;
460use Plack::App::WrapCGI;
461use CGI::Emulate::PSGI 0.07; # minimum version required to work with gitweb
462# mimetype mapping (from lighttpd_conf)
464Plack::MIME->add_type(
465 ".pdf" => "application/pdf",
466 ".sig" => "application/pgp-signature",
467 ".spl" => "application/futuresplash",
468 ".class" => "application/octet-stream",
469 ".ps" => "application/postscript",
470 ".torrent" => "application/x-bittorrent",
471 ".dvi" => "application/x-dvi",
472 ".gz" => "application/x-gzip",
473 ".pac" => "application/x-ns-proxy-autoconfig",
474 ".swf" => "application/x-shockwave-flash",
475 ".tar.gz" => "application/x-tgz",
476 ".tgz" => "application/x-tgz",
477 ".tar" => "application/x-tar",
478 ".zip" => "application/zip",
479 ".mp3" => "audio/mpeg",
480 ".m3u" => "audio/x-mpegurl",
481 ".wma" => "audio/x-ms-wma",
482 ".wax" => "audio/x-ms-wax",
483 ".ogg" => "application/ogg",
484 ".wav" => "audio/x-wav",
485 ".gif" => "image/gif",
486 ".jpg" => "image/jpeg",
487 ".jpeg" => "image/jpeg",
488 ".png" => "image/png",
489 ".xbm" => "image/x-xbitmap",
490 ".xpm" => "image/x-xpixmap",
491 ".xwd" => "image/x-xwindowdump",
492 ".css" => "text/css",
493 ".html" => "text/html",
494 ".htm" => "text/html",
495 ".js" => "text/javascript",
496 ".asc" => "text/plain",
497 ".c" => "text/plain",
498 ".cpp" => "text/plain",
499 ".log" => "text/plain",
500 ".conf" => "text/plain",
501 ".text" => "text/plain",
502 ".txt" => "text/plain",
503 ".dtd" => "text/xml",
504 ".xml" => "text/xml",
505 ".mpeg" => "video/mpeg",
506 ".mpg" => "video/mpeg",
507 ".mov" => "video/quicktime",
508 ".qt" => "video/quicktime",
509 ".avi" => "video/x-msvideo",
510 ".asf" => "video/x-ms-asf",
511 ".asx" => "video/x-ms-asf",
512 ".wmv" => "video/x-ms-wmv",
513 ".bz2" => "application/x-bzip",
514 ".tbz" => "application/x-bzip-compressed-tar",
515 ".tar.bz2" => "application/x-bzip-compressed-tar",
516 "" => "text/plain"
517);
518my \$app = builder {
520 # to be able to override \$SIG{__WARN__} to log build time warnings
521 use CGI::Carp; # it sets \$SIG{__WARN__} itself
522 my \$logdir = "$fqgitdir/gitweb/$httpd_only";
524 open my \$access_log_fh, '>>', "\$logdir/access.log"
525 or die "Couldn't open access log '\$logdir/access.log': \$!";
526 open my \$error_log_fh, '>>', "\$logdir/error.log"
527 or die "Couldn't open error log '\$logdir/error.log': \$!";
528 \$access_log_fh->autoflush(1);
530 \$error_log_fh->autoflush(1);
531 # redirect build time warnings to error.log
533 \$SIG{'__WARN__'} = sub {
534 my \$msg = shift;
535 # timestamp warning like in CGI::Carp::warn
536 my \$stamp = CGI::Carp::stamp();
537 \$msg =~ s/^/\$stamp/gm;
538 print \$error_log_fh \$msg;
539 };
540 # write errors to error.log, access to access.log
542 enable 'AccessLog',
543 format => "combined",
544 logger => sub { print \$access_log_fh @_; };
545 enable sub {
546 my \$app = shift;
547 sub {
548 my \$env = shift;
549 \$env->{'psgi.errors'} = \$error_log_fh;
550 \$app->(\$env);
551 }
552 };
553 # gitweb currently doesn't work with $SIG{CHLD} set to 'IGNORE',
554 # because it uses 'close $fd or die...' on piped filehandle $fh
555 # (which causes the parent process to wait for child to finish).
556 enable_if { \$SIG{'CHLD'} eq 'IGNORE' } sub {
557 my \$app = shift;
558 sub {
559 my \$env = shift;
560 local \$SIG{'CHLD'} = 'DEFAULT';
561 local \$SIG{'CLD'} = 'DEFAULT';
562 \$app->(\$env);
563 }
564 };
565 # serve static files, i.e. stylesheet, images, script
566 enable 'Static',
567 path => sub { m!\.(js|css|png)\$! && s!^/gitweb/!! },
568 root => "$root/",
569 encoding => 'utf-8'; # encoding for 'text/plain' files
570 # convert CGI application to PSGI app
571 Plack::App::WrapCGI->new(script => "$root/gitweb.cgi")->to_app;
572};
573# make it runnable as standalone app,
575# like it would be run via 'plackup' utility
576if (caller) {
577 return \$app;
578} else {
579 require Plack::Runner;
580 my \$runner = Plack::Runner->new();
582 \$runner->parse_options(qw(--env deployment --port $port),
583 "$local" ? qw(--host 127.0.0.1) : ());
584 \$runner->run(\$app);
585}
586__END__
587EOF
588 chmod a+x "$fqgitdir/gitweb/gitweb.psgi"
590 # configuration is embedded in server script file, gitweb.psgi
591 rm -f "$conf"
592}
593gitweb_conf() {
595 cat > "$fqgitdir/gitweb/gitweb_config.perl" <<EOF
596#!@@PERL@@
597our \$projectroot = "$(dirname "$fqgitdir")";
598our \$git_temp = "$fqgitdir/gitweb/tmp";
599our \$projects_list = \$projectroot;
600\$feature{'remote_heads'}{'default'} = [1];
602EOF
603}
604configure_httpd() {
606 case "$httpd" in
607 *lighttpd*)
608 lighttpd_conf
609 ;;
610 *apache2*|*httpd*)
611 apache2_conf
612 ;;
613 webrick)
614 webrick_conf
615 ;;
616 *mongoose*)
617 mongoose_conf
618 ;;
619 *plackup*)
620 plackup_conf
621 ;;
622 *)
623 echo "Unknown httpd specified: $httpd"
624 exit 1
625 ;;
626 esac
627}
628case "$action" in
630stop)
631 stop_httpd
632 exit 0
633 ;;
634start)
635 start_httpd
636 exit 0
637 ;;
638restart)
639 stop_httpd
640 start_httpd
641 exit 0
642 ;;
643esac
644gitweb_conf
646resolve_full_httpd
648mkdir -p "$fqgitdir/gitweb/$httpd_only"
649conf="$fqgitdir/gitweb/$httpd_only.conf"
650configure_httpd
652start_httpd
654url=http://127.0.0.1:$port
655if test -n "$browser"; then
657 httpd_is_ready && git web--browse -b "$browser" $url || echo $url
658else
659 httpd_is_ready && git web--browse -c "instaweb.browser" $url || echo $url
660fi