summaryrefslogtreecommitdiff
path: root/git-instaweb.sh
blob: 80a7f74feabf7e8c7a72e1e2e6c2f233e7ba5d7c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
#!/bin/sh
#
# Copyright (c) 2006 Eric Wong
#
 
PERL='@@PERL@@'
OPTIONS_KEEPDASHDASH=
OPTIONS_SPEC="\
git instaweb [options] (--start | --stop | --restart)
--
l,local        only bind on 127.0.0.1
p,port=        the port to bind to
d,httpd=       the command to launch
b,browser=     the browser to launch
m,module-path= the module path (only needed for apache2)
 Action
stop           stop the web server
start          start the web server
restart        restart the web server
"
 
. git-sh-setup
 
fqgitdir="$GIT_DIR"
local="$(git config --bool --get instaweb.local)"
httpd="$(git config --get instaweb.httpd)"
port=$(git config --get instaweb.port)
module_path="$(git config --get instaweb.modulepath)"
 
conf="$GIT_DIR/gitweb/httpd.conf"
 
# Defaults:
 
# if installed, it doesn't need further configuration (module_path)
test -z "$httpd" && httpd='lighttpd -f'
 
# any untaken local port will do...
test -z "$port" && port=1234
 
resolve_full_httpd () {
	case "$httpd" in
	*apache2*|*lighttpd*)
		# ensure that the apache2/lighttpd command ends with "-f"
		if ! echo "$httpd" | grep -- '-f *$' >/dev/null 2>&1
		then
			httpd="$httpd -f"
		fi
		;;
	esac
 
	httpd_only="$(echo $httpd | cut -f1 -d' ')"
	if case "$httpd_only" in /*) : ;; *) which $httpd_only >/dev/null 2>&1;; esac
	then
		full_httpd=$httpd
	else
		# many httpds are installed in /usr/sbin or /usr/local/sbin
		# these days and those are not in most users $PATHs
		# in addition, we may have generated a server script
		# in $fqgitdir/gitweb.
		for i in /usr/local/sbin /usr/sbin "$fqgitdir/gitweb"
		do
			if test -x "$i/$httpd_only"
			then
				full_httpd=$i/$httpd
				return
			fi
		done
 
		echo >&2 "$httpd_only not found. Install $httpd_only or use" \
		     "--httpd to specify another httpd daemon."
		exit 1
	fi
}
 
start_httpd () {
	if test -f "$fqgitdir/pid"; then
		say "Instance already running. Restarting..."
		stop_httpd
	fi
 
	# here $httpd should have a meaningful value
	resolve_full_httpd
 
	# don't quote $full_httpd, there can be arguments to it (-f)
	case "$httpd" in
	*mongoose*)
		#The mongoose server doesn't have a daemon mode so we'll have to fork it
		$full_httpd "$fqgitdir/gitweb/httpd.conf" &
		#Save the pid before doing anything else (we'll print it later)
		pid=$!
 
		if test $? != 0; then
			echo "Could not execute http daemon $httpd."
			exit 1
		fi
 
		cat > "$fqgitdir/pid" <<EOF
$pid
EOF
		;;
	*)
		$full_httpd "$fqgitdir/gitweb/httpd.conf"
		if test $? != 0; then
			echo "Could not execute http daemon $httpd."
			exit 1
		fi
		;;
	esac
}
 
stop_httpd () {
	test -f "$fqgitdir/pid" && kill $(cat "$fqgitdir/pid")
}
 
while test $# != 0
do
	case "$1" in
	--stop|stop)
		stop_httpd
		exit 0
		;;
	--start|start)
		start_httpd
		exit 0
		;;
	--restart|restart)
		stop_httpd
		start_httpd
		exit 0
		;;
	-l|--local)
		local=true
		;;
	-d|--httpd)
		shift
		httpd="$1"
		;;
	-b|--browser)
		shift
		browser="$1"
		;;
	-p|--port)
		shift
		port="$1"
		;;
	-m|--module-path)
		shift
		module_path="$1"
		;;
	--)
		;;
	*)
		usage
		;;
	esac
	shift
done
 
mkdir -p "$GIT_DIR/gitweb/tmp"
GIT_EXEC_PATH="$(git --exec-path)"
GIT_DIR="$fqgitdir"
export GIT_EXEC_PATH GIT_DIR
 
 
webrick_conf () {
	# generate a standalone server script in $fqgitdir/gitweb.
	cat >"$fqgitdir/gitweb/$httpd.rb" <<EOF
require 'webrick'
require 'yaml'
options = YAML::load_file(ARGV[0])
options[:StartCallback] = proc do
  File.open(options[:PidFile],"w") do |f|
    f.puts Process.pid
  end
end
options[:ServerType] = WEBrick::Daemon
server = WEBrick::HTTPServer.new(options)
['INT', 'TERM'].each do |signal|
  trap(signal) {server.shutdown}
end
server.start
EOF
	# generate a shell script to invoke the above ruby script,
	# which assumes _ruby_ is in the user's $PATH. that's _one_
	# portable way to run ruby, which could be installed anywhere,
	# really.
	cat >"$fqgitdir/gitweb/$httpd" <<EOF
#!/bin/sh
exec ruby "$fqgitdir/gitweb/$httpd.rb" \$*
EOF
	chmod +x "$fqgitdir/gitweb/$httpd"
 
	cat >"$conf" <<EOF
:Port: $port
:DocumentRoot: "$fqgitdir/gitweb"
:DirectoryIndex: ["gitweb.cgi"]
:PidFile: "$fqgitdir/pid"
EOF
	test "$local" = true && echo ':BindAddress: "127.0.0.1"' >> "$conf"
}
 
lighttpd_conf () {
	cat > "$conf" <<EOF
server.document-root = "$fqgitdir/gitweb"
server.port = $port
server.modules = ( "mod_setenv", "mod_cgi" )
server.indexfiles = ( "gitweb.cgi" )
server.pid-file = "$fqgitdir/pid"
server.errorlog = "$fqgitdir/gitweb/error.log"
 
# to enable, add "mod_access", "mod_accesslog" to server.modules
# variable above and uncomment this
#accesslog.filename = "$fqgitdir/gitweb/access.log"
 
setenv.add-environment = ( "PATH" => "/usr/local/bin:/usr/bin:/bin" )
 
cgi.assign = ( ".cgi" => "" )
 
# mimetype mapping
mimetype.assign             = (
  ".pdf"          =>      "application/pdf",
  ".sig"          =>      "application/pgp-signature",
  ".spl"          =>      "application/futuresplash",
  ".class"        =>      "application/octet-stream",
  ".ps"           =>      "application/postscript",
  ".torrent"      =>      "application/x-bittorrent",
  ".dvi"          =>      "application/x-dvi",
  ".gz"           =>      "application/x-gzip",
  ".pac"          =>      "application/x-ns-proxy-autoconfig",
  ".swf"          =>      "application/x-shockwave-flash",
  ".tar.gz"       =>      "application/x-tgz",
  ".tgz"          =>      "application/x-tgz",
  ".tar"          =>      "application/x-tar",
  ".zip"          =>      "application/zip",
  ".mp3"          =>      "audio/mpeg",
  ".m3u"          =>      "audio/x-mpegurl",
  ".wma"          =>      "audio/x-ms-wma",
  ".wax"          =>      "audio/x-ms-wax",
  ".ogg"          =>      "application/ogg",
  ".wav"          =>      "audio/x-wav",
  ".gif"          =>      "image/gif",
  ".jpg"          =>      "image/jpeg",
  ".jpeg"         =>      "image/jpeg",
  ".png"          =>      "image/png",
  ".xbm"          =>      "image/x-xbitmap",
  ".xpm"          =>      "image/x-xpixmap",
  ".xwd"          =>      "image/x-xwindowdump",
  ".css"          =>      "text/css",
  ".html"         =>      "text/html",
  ".htm"          =>      "text/html",
  ".js"           =>      "text/javascript",
  ".asc"          =>      "text/plain",
  ".c"            =>      "text/plain",
  ".cpp"          =>      "text/plain",
  ".log"          =>      "text/plain",
  ".conf"         =>      "text/plain",
  ".text"         =>      "text/plain",
  ".txt"          =>      "text/plain",
  ".dtd"          =>      "text/xml",
  ".xml"          =>      "text/xml",
  ".mpeg"         =>      "video/mpeg",
  ".mpg"          =>      "video/mpeg",
  ".mov"          =>      "video/quicktime",
  ".qt"           =>      "video/quicktime",
  ".avi"          =>      "video/x-msvideo",
  ".asf"          =>      "video/x-ms-asf",
  ".asx"          =>      "video/x-ms-asf",
  ".wmv"          =>      "video/x-ms-wmv",
  ".bz2"          =>      "application/x-bzip",
  ".tbz"          =>      "application/x-bzip-compressed-tar",
  ".tar.bz2"      =>      "application/x-bzip-compressed-tar",
  ""              =>      "text/plain"
 )
EOF
	test x"$local" = xtrue && echo 'server.bind = "127.0.0.1"' >> "$conf"
}
 
apache2_conf () {
	test -z "$module_path" && module_path=/usr/lib/apache2/modules
	mkdir -p "$GIT_DIR/gitweb/logs"
	bind=
	test x"$local" = xtrue && bind='127.0.0.1:'
	echo 'text/css css' > "$fqgitdir/mime.types"
	cat > "$conf" <<EOF
ServerName "git-instaweb"
ServerRoot "$fqgitdir/gitweb"
DocumentRoot "$fqgitdir/gitweb"
PidFile "$fqgitdir/pid"
Listen $bind$port
EOF
 
	for mod in mime dir; do
		if test -e $module_path/mod_${mod}.so; then
			echo "LoadModule ${mod}_module " \
			     "$module_path/mod_${mod}.so" >> "$conf"
		fi
	done
	cat >> "$conf" <<EOF
TypesConfig "$fqgitdir/mime.types"
DirectoryIndex gitweb.cgi
EOF
 
	# check to see if Dennis Stosberg's mod_perl compatibility patch
	# (<20060621130708.Gcbc6e5c@leonov.stosberg.net>) has been applied
	if test -f "$module_path/mod_perl.so" && grep 'MOD_PERL' \
				"$GIT_DIR/gitweb/gitweb.cgi" >/dev/null
	then
		# favor mod_perl if available
		cat >> "$conf" <<EOF
LoadModule perl_module $module_path/mod_perl.so
PerlPassEnv GIT_DIR
PerlPassEnv GIT_EXEC_DIR
<Location /gitweb.cgi>
	SetHandler perl-script
	PerlResponseHandler ModPerl::Registry
	PerlOptions +ParseHeaders
	Options +ExecCGI
</Location>
EOF
	else
		# plain-old CGI
		resolve_full_httpd
		list_mods=$(echo "$full_httpd" | sed "s/-f$/-l/")
		$list_mods | grep 'mod_cgi\.c' >/dev/null 2>&1 || \
		echo "LoadModule cgi_module $module_path/mod_cgi.so" >> "$conf"
		cat >> "$conf" <<EOF
AddHandler cgi-script .cgi
<Location /gitweb.cgi>
	Options +ExecCGI
</Location>
EOF
	fi
}
 
mongoose_conf() {
	cat > "$conf" <<EOF
# Mongoose web server configuration file.
# Lines starting with '#' and empty lines are ignored.
# For detailed description of every option, visit
# http://code.google.com/p/mongoose/wiki/MongooseManual
 
root		$fqgitdir/gitweb
ports		$port
index_files	gitweb.cgi
#ssl_cert	$fqgitdir/gitweb/ssl_cert.pem
error_log	$fqgitdir/gitweb/error.log
access_log	$fqgitdir/gitweb/access.log
 
#cgi setup
cgi_env		PATH=/usr/local/bin:/usr/bin:/bin,GIT_DIR=$GIT_DIR,GIT_EXEC_PATH=$GIT_EXEC_PATH
cgi_interp	$PERL
cgi_ext		cgi,pl
 
# mimetype mapping
mime_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
EOF
}
 
 
script='
s#^(my|our) \$projectroot =.*#$1 \$projectroot = "'$(dirname "$fqgitdir")'";#;
s#(my|our) \$gitbin =.*#$1 \$gitbin = "'$GIT_EXEC_PATH'";#;
s#(my|our) \$projects_list =.*#$1 \$projects_list = \$projectroot;#;
s#(my|our) \$git_temp =.*#$1 \$git_temp = "'$fqgitdir/gitweb/tmp'";#;'
 
gitweb_cgi () {
	cat > "$1.tmp" <<\EOFGITWEB
@@GITWEB_CGI@@
EOFGITWEB
	# Use the configured full path to perl to match the generated
	# scripts' 'hashpling' line
	"$PERL" -p -e "$script" "$1.tmp"  > "$1"
	chmod +x "$1"
	rm -f "$1.tmp"
}
 
gitweb_css () {
	cat > "$1" <<\EOFGITWEB
@@GITWEB_CSS@@
EOFGITWEB
}
 
gitweb_cgi "$GIT_DIR/gitweb/gitweb.cgi"
gitweb_css "$GIT_DIR/gitweb/gitweb.css"
 
case "$httpd" in
*lighttpd*)
	lighttpd_conf
	;;
*apache2*)
	apache2_conf
	;;
webrick)
	webrick_conf
	;;
*mongoose*)
	mongoose_conf
	;;
*)
	echo "Unknown httpd specified: $httpd"
	exit 1
	;;
esac
 
start_httpd
url=http://127.0.0.1:$port
 
if test -n "$browser"; then
	git web--browse -b "$browser" $url || echo $url
else
	git web--browse -c "instaweb.browser" $url || echo $url
fi