summaryrefslogtreecommitdiff
path: root/git-instaweb.sh
blob: ada1180528b08607858efbcce9b2afc6d1b0e061 (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
#!/bin/sh
#
# Copyright (c) 2006 Eric Wong
#
USAGE='[--start] [--stop] [--restart]
  [--local] [--httpd=<httpd>] [--port=<port>] [--browser=<browser>]
  [--module-path=<path> (for Apache2 only)]'

. git-sh-setup

fqgitdir="$GIT_DIR"
local="`git config --bool --get instaweb.local`"
httpd="`git config --get instaweb.httpd`"
browser="`git config --get instaweb.browser`"
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'

# probably the most popular browser among gitweb users
test -z "$browser" && browser='firefox'

# any untaken local port will do...
test -z "$port" && port=1234

start_httpd () {
	httpd_only="`echo $httpd | cut -f1 -d' '`"
	if case "$httpd_only" in /*) : ;; *) which $httpd_only >/dev/null;; esac
	then
		$httpd "$fqgitdir/gitweb/httpd.conf"
	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
				# don't quote $httpd, there can be
				# arguments to it (-f)
				$i/$httpd "$fqgitdir/gitweb/httpd.conf"
				return
			fi
		done
		echo "$httpd_only not found. Install $httpd_only or use" \
		     "--httpd to specify another http daemon."
		exit 1
	fi
	if test $? != 0; then
		echo "Could not execute http daemon $httpd."
		exit 1
	fi
}

stop_httpd () {
	test -f "$fqgitdir/pid" && kill `cat "$fqgitdir/pid"`
}

while test $# != 0
do
	case "$1" in
	--stop|stop)
		stop_httpd
		exit 0
		;;
	--start|start)
		start_httpd
		exit 0
		;;
	--restart|restart)
		stop_httpd
		start_httpd
		exit 0
		;;
	--local|-l)
		local=true
		;;
	-d|--httpd|--httpd=*)
		case "$#,$1" in
		*,*=*)
			httpd=`expr "$1" : '-[^=]*=\(.*\)'` ;;
		1,*)
			usage ;;
		*)
			httpd="$2"
			shift ;;
		esac
		;;
	-b|--browser|--browser=*)
		case "$#,$1" in
		*,*=*)
			browser=`expr "$1" : '-[^=]*=\(.*\)'` ;;
		1,*)
			usage ;;
		*)
			browser="$2"
			shift ;;
		esac
		;;
	-p|--port|--port=*)
		case "$#,$1" in
		*,*=*)
			port=`expr "$1" : '-[^=]*=\(.*\)'` ;;
		1,*)
			usage ;;
		*)
			port="$2"
			shift ;;
		esac
		;;
	-m|--module-path=*|--module-path)
		case "$#,$1" in
		*,*=*)
			module_path=`expr "$1" : '-[^=]*=\(.*\)'` ;;
		1,*)
			usage ;;
		*)
			module_path="$2"
			shift ;;
		esac
		;;
	*)
		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 = $port
server.modules = ( "mod_cgi" )
server.indexfiles = ( "gitweb.cgi" )
server.pid-file = "$fqgitdir/pid"
cgi.assign = ( ".cgi" => "" )
mimetype.assign = ( ".css" => "text/css" )
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 '^our $gitbin' \
				"$GIT_DIR/gitweb/gitweb.cgi" >/dev/null
	then
		# favor mod_perl if available
		cat >> "$conf" <<EOF
LoadModule perl_module $module_path/mod_perl.so
PerlPassEnv GIT_DIR
PerlPassEnv GIT_EXEC_DIR
<Location /gitweb.cgi>
	SetHandler perl-script
	PerlResponseHandler ModPerl::Registry
	PerlOptions +ParseHeaders
	Options +ExecCGI
</Location>
EOF
	else
		# plain-old CGI
		list_mods=`echo "$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
}

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 > "$1.tmp" <<\EOFGITWEB
@@GITWEB_CGI@@
EOFGITWEB
	sed "$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
	;;
*)
	echo "Unknown httpd specified: $httpd"
	exit 1
	;;
esac

start_httpd
url=http://127.0.0.1:$port
"$browser" $url || echo $url