git-instaweb.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2006 Eric Wong
   4 #
   5
   6 PERL='@@PERL@@'
   7 OPTIONS_KEEPDASHDASH=
   8 OPTIONS_SPEC="\
   9 git instaweb [options] (--start | --stop | --restart)
  10 --
  11 l,local        only bind on 127.0.0.1
  12 p,port=        the port to bind to
  13 d,httpd=       the command to launch
  14 b,browser=     the browser to launch
  15 m,module-path= the module path (only needed for apache2)
  16  Action
  17 stop           stop the web server
  18 start          start the web server
  19 restart        restart the web server
  20 "
  21
  22 . git-sh-setup
  23
  24 fqgitdir="$GIT_DIR"
  25 local="$(git config --bool --get instaweb.local)"
  26 httpd="$(git config --get instaweb.httpd)"
  27 root="$(git config --get instaweb.gitwebdir)"
  28 port=$(git config --get instaweb.port)
  29 module_path="$(git config --get instaweb.modulepath)"
  30
  31 conf="$GIT_DIR/gitweb/httpd.conf"
  32
  33 # Defaults:
  34
  35 # if installed, it doesn't need further configuration (module_path)
  36 test -z "$httpd" && httpd='lighttpd -f'
  37
  38 # Default is @@GITWEBDIR@@
  39 test -z "$root" && root='@@GITWEBDIR@@'
  40
  41 # any untaken local port will do...
  42 test -z "$port" && port=1234
  43
  44 resolve_full_httpd () {
  45         case "$httpd" in
  46         *apache2*|*lighttpd*)
  47                 # ensure that the apache2/lighttpd command ends with "-f"
  48                 if ! echo "$httpd" | sane_grep -- '-f *$' >/dev/null 2>&1
  49                 then
  50                         httpd="$httpd -f"
  51                 fi
  52                 ;;
  53         esac
  54
  55         httpd_only="$(echo $httpd | cut -f1 -d' ')"
  56         if case "$httpd_only" in /*) : ;; *) which $httpd_only >/dev/null 2>&1;; esac
  57         then
  58                 full_httpd=$httpd
  59         else
  60                 # many httpds are installed in /usr/sbin or /usr/local/sbin
  61                 # these days and those are not in most users $PATHs
  62                 # in addition, we may have generated a server script
  63                 # in $fqgitdir/gitweb.
  64                 for i in /usr/local/sbin /usr/sbin "$root" "$fqgitdir/gitweb"
  65                 do
  66                         if test -x "$i/$httpd_only"
  67                         then
  68                                 full_httpd=$i/$httpd
  69                                 return
  70                         fi
  71                 done
  72
  73                 echo >&2 "$httpd_only not found. Install $httpd_only or use" \
  74                      "--httpd to specify another httpd daemon."
  75                 exit 1
  76         fi
  77 }
  78
  79 start_httpd () {
  80         if test -f "$fqgitdir/pid"; then
  81                 say "Instance already running. Restarting..."
  82                 stop_httpd
  83         fi
  84
  85         # here $httpd should have a meaningful value
  86         resolve_full_httpd
  87
  88         # don't quote $full_httpd, there can be arguments to it (-f)
  89         case "$httpd" in
  90         *mongoose*)
  91                 #The mongoose server doesn't have a daemon mode so we'll have to fork it
  92                 $full_httpd "$fqgitdir/gitweb/httpd.conf" &
  93                 #Save the pid before doing anything else (we'll print it later)
  94                 pid=$!
  95
  96                 if test $? != 0; then
  97                         echo "Could not execute http daemon $httpd."
  98                         exit 1
  99                 fi
 100
 101                 cat > "$fqgitdir/pid" <<EOF
 102 $pid
 103 EOF
 104                 ;;
 105         *)
 106                 $full_httpd "$fqgitdir/gitweb/httpd.conf"
 107                 if test $? != 0; then
 108                         echo "Could not execute http daemon $httpd."
 109                         exit 1
 110                 fi
 111                 ;;
 112         esac
 113 }
 114
 115 stop_httpd () {
 116         test -f "$fqgitdir/pid" && kill $(cat "$fqgitdir/pid")
 117         rm -f "$fqgitdir/pid"
 118 }
 119
 120 httpd_is_ready () {
 121         "$PERL" -MIO::Socket::INET -e "
 122 local \$| = 1; # turn on autoflush
 123 exit if (IO::Socket::INET->new('127.0.0.1:$port'));
 124 print 'Waiting for \'$httpd\' to start ..';
 125 do {
 126         print '.';
 127         sleep(1);
 128 } until (IO::Socket::INET->new('127.0.0.1:$port'));
 129 print qq! (done)\n!;
 130 "
 131 }
 132
 133 while test $# != 0
 134 do
 135         case "$1" in
 136         --stop|stop)
 137                 stop_httpd
 138                 exit 0
 139                 ;;
 140         --start|start)
 141                 start_httpd
 142                 exit 0
 143                 ;;
 144         --restart|restart)
 145                 stop_httpd
 146                 start_httpd
 147                 exit 0
 148                 ;;
 149         -l|--local)
 150                 local=true
 151                 ;;
 152         -d|--httpd)
 153                 shift
 154                 httpd="$1"
 155                 ;;
 156         -b|--browser)
 157                 shift
 158                 browser="$1"
 159                 ;;
 160         -p|--port)
 161                 shift
 162                 port="$1"
 163                 ;;
 164         -m|--module-path)
 165                 shift
 166                 module_path="$1"
 167                 ;;
 168         --)
 169                 ;;
 170         *)
 171                 usage
 172                 ;;
 173         esac
 174         shift
 175 done
 176
 177 mkdir -p "$GIT_DIR/gitweb/tmp"
 178 GIT_EXEC_PATH="$(git --exec-path)"
 179 GIT_DIR="$fqgitdir"
 180 GITWEB_CONFIG="$fqgitdir/gitweb/gitweb_config.perl"
 181 export GIT_EXEC_PATH GIT_DIR GITWEB_CONFIG
 182
 183 webrick_conf () {
 184         # generate a standalone server script in $fqgitdir/gitweb.
 185         cat >"$fqgitdir/gitweb/$httpd.rb" <<EOF
 186 require 'webrick'
 187 require 'yaml'
 188 options = YAML::load_file(ARGV[0])
 189 options[:StartCallback] = proc do
 190   File.open(options[:PidFile],"w") do |f|
 191     f.puts Process.pid
 192   end
 193 end
 194 options[:ServerType] = WEBrick::Daemon
 195 server = WEBrick::HTTPServer.new(options)
 196 ['INT', 'TERM'].each do |signal|
 197   trap(signal) {server.shutdown}
 198 end
 199 server.start
 200 EOF
 201         # generate a shell script to invoke the above ruby script,
 202         # which assumes _ruby_ is in the user's $PATH. that's _one_
 203         # portable way to run ruby, which could be installed anywhere,
 204         # really.
 205         cat >"$fqgitdir/gitweb/$httpd" <<EOF
 206 #!/bin/sh
 207 exec ruby "$fqgitdir/gitweb/$httpd.rb" \$*
 208 EOF
 209         chmod +x "$fqgitdir/gitweb/$httpd"
 210
 211         cat >"$conf" <<EOF
 212 :Port: $port
 213 :DocumentRoot: "$root"
 214 :DirectoryIndex: ["gitweb.cgi"]
 215 :PidFile: "$fqgitdir/pid"
 216 EOF
 217         test "$local" = true && echo ':BindAddress: "127.0.0.1"' >> "$conf"
 218 }
 219
 220 lighttpd_conf () {
 221         cat > "$conf" <<EOF
 222 server.document-root = "$root"
 223 server.port = $port
 224 server.modules = ( "mod_setenv", "mod_cgi" )
 225 server.indexfiles = ( "gitweb.cgi" )
 226 server.pid-file = "$fqgitdir/pid"
 227 server.errorlog = "$fqgitdir/gitweb/$httpd_only/error.log"
 228
 229 # to enable, add "mod_access", "mod_accesslog" to server.modules
 230 # variable above and uncomment this
 231 #accesslog.filename = "$fqgitdir/gitweb/$httpd_only/access.log"
 232
 233 setenv.add-environment = ( "PATH" => env.PATH, "GITWEB_CONFIG" => env.GITWEB_CONFIG )
 234
 235 cgi.assign = ( ".cgi" => "" )
 236
 237 # mimetype mapping
 238 mimetype.assign             = (
 239   ".pdf"          =>      "application/pdf",
 240   ".sig"          =>      "application/pgp-signature",
 241   ".spl"          =>      "application/futuresplash",
 242   ".class"        =>      "application/octet-stream",
 243   ".ps"           =>      "application/postscript",
 244   ".torrent"      =>      "application/x-bittorrent",
 245   ".dvi"          =>      "application/x-dvi",
 246   ".gz"           =>      "application/x-gzip",
 247   ".pac"          =>      "application/x-ns-proxy-autoconfig",
 248   ".swf"          =>      "application/x-shockwave-flash",
 249   ".tar.gz"       =>      "application/x-tgz",
 250   ".tgz"          =>      "application/x-tgz",
 251   ".tar"          =>      "application/x-tar",
 252   ".zip"          =>      "application/zip",
 253   ".mp3"          =>      "audio/mpeg",
 254   ".m3u"          =>      "audio/x-mpegurl",
 255   ".wma"          =>      "audio/x-ms-wma",
 256   ".wax"          =>      "audio/x-ms-wax",
 257   ".ogg"          =>      "application/ogg",
 258   ".wav"          =>      "audio/x-wav",
 259   ".gif"          =>      "image/gif",
 260   ".jpg"          =>      "image/jpeg",
 261   ".jpeg"         =>      "image/jpeg",
 262   ".png"          =>      "image/png",
 263   ".xbm"          =>      "image/x-xbitmap",
 264   ".xpm"          =>      "image/x-xpixmap",
 265   ".xwd"          =>      "image/x-xwindowdump",
 266   ".css"          =>      "text/css",
 267   ".html"         =>      "text/html",
 268   ".htm"          =>      "text/html",
 269   ".js"           =>      "text/javascript",
 270   ".asc"          =>      "text/plain",
 271   ".c"            =>      "text/plain",
 272   ".cpp"          =>      "text/plain",
 273   ".log"          =>      "text/plain",
 274   ".conf"         =>      "text/plain",
 275   ".text"         =>      "text/plain",
 276   ".txt"          =>      "text/plain",
 277   ".dtd"          =>      "text/xml",
 278   ".xml"          =>      "text/xml",
 279   ".mpeg"         =>      "video/mpeg",
 280   ".mpg"          =>      "video/mpeg",
 281   ".mov"          =>      "video/quicktime",
 282   ".qt"           =>      "video/quicktime",
 283   ".avi"          =>      "video/x-msvideo",
 284   ".asf"          =>      "video/x-ms-asf",
 285   ".asx"          =>      "video/x-ms-asf",
 286   ".wmv"          =>      "video/x-ms-wmv",
 287   ".bz2"          =>      "application/x-bzip",
 288   ".tbz"          =>      "application/x-bzip-compressed-tar",
 289   ".tar.bz2"      =>      "application/x-bzip-compressed-tar",
 290   ""              =>      "text/plain"
 291  )
 292 EOF
 293         test x"$local" = xtrue && echo 'server.bind = "127.0.0.1"' >> "$conf"
 294 }
 295
 296 apache2_conf () {
 297         test -z "$module_path" && module_path=/usr/lib/apache2/modules
 298         bind=
 299         test x"$local" = xtrue && bind='127.0.0.1:'
 300         echo 'text/css css' > "$fqgitdir/mime.types"
 301         cat > "$conf" <<EOF
 302 ServerName "git-instaweb"
 303 ServerRoot "$root"
 304 DocumentRoot "$root"
 305 ErrorLog "$fqgitdir/gitweb/$httpd_only/error.log"
 306 CustomLog "$fqgitdir/gitweb/$httpd_only/access.log" combined
 307 PidFile "$fqgitdir/pid"
 308 Listen $bind$port
 309 EOF
 310
 311         for mod in mime dir; do
 312                 if test -e $module_path/mod_${mod}.so; then
 313                         echo "LoadModule ${mod}_module " \
 314                              "$module_path/mod_${mod}.so" >> "$conf"
 315                 fi
 316         done
 317         cat >> "$conf" <<EOF
 318 TypesConfig "$fqgitdir/mime.types"
 319 DirectoryIndex gitweb.cgi
 320 EOF
 321
 322         # check to see if Dennis Stosberg's mod_perl compatibility patch
 323         # (<20060621130708.Gcbc6e5c@leonov.stosberg.net>) has been applied
 324         if test -f "$module_path/mod_perl.so" &&
 325            sane_grep 'MOD_PERL' "$root/gitweb.cgi" >/dev/null
 326         then
 327                 # favor mod_perl if available
 328                 cat >> "$conf" <<EOF
 329 LoadModule perl_module $module_path/mod_perl.so
 330 PerlPassEnv GIT_DIR
 331 PerlPassEnv GIT_EXEC_DIR
 332 PerlPassEnv GITWEB_CONFIG
 333 <Location /gitweb.cgi>
 334         SetHandler perl-script
 335         PerlResponseHandler ModPerl::Registry
 336         PerlOptions +ParseHeaders
 337         Options +ExecCGI
 338 </Location>
 339 EOF
 340         else
 341                 # plain-old CGI
 342                 resolve_full_httpd
 343                 list_mods=$(echo "$full_httpd" | sed 's/-f$/-l/')
 344                 $list_mods | sane_grep 'mod_cgi\.c' >/dev/null 2>&1 || \
 345                 if test -f "$module_path/mod_cgi.so"
 346                 then
 347                         echo "LoadModule cgi_module $module_path/mod_cgi.so" >> "$conf"
 348                 else
 349                         $list_mods | grep 'mod_cgid\.c' >/dev/null 2>&1 || \
 350                         if test -f "$module_path/mod_cgid.so"
 351                         then
 352                                 echo "LoadModule cgid_module $module_path/mod_cgid.so" \
 353                                         >> "$conf"
 354                         else
 355                                 echo "You have no CGI support!"
 356                                 exit 2
 357                         fi
 358                         echo "ScriptSock logs/gitweb.sock" >> "$conf"
 359                 fi
 360                 cat >> "$conf" <<EOF
 361 AddHandler cgi-script .cgi
 362 <Location /gitweb.cgi>
 363         Options +ExecCGI
 364 </Location>
 365 EOF
 366         fi
 367 }
 368
 369 mongoose_conf() {
 370         cat > "$conf" <<EOF
 371 # Mongoose web server configuration file.
 372 # Lines starting with '#' and empty lines are ignored.
 373 # For detailed description of every option, visit
 374 # http://code.google.com/p/mongoose/wiki/MongooseManual
 375
 376 root            $root
 377 ports           $port
 378 index_files     gitweb.cgi
 379 #ssl_cert       $fqgitdir/gitweb/ssl_cert.pem
 380 error_log       $fqgitdir/gitweb/$httpd_only/error.log
 381 access_log      $fqgitdir/gitweb/$httpd_only/access.log
 382
 383 #cgi setup
 384 cgi_env         PATH=$PATH,GIT_DIR=$GIT_DIR,GIT_EXEC_PATH=$GIT_EXEC_PATH,GITWEB_CONFIG=$GITWEB_CONFIG
 385 cgi_interp      $PERL
 386 cgi_ext         cgi,pl
 387
 388 # mimetype mapping
 389 mime_types      .gz=application/x-gzip,.tar.gz=application/x-tgz,.tgz=application/x-tgz,.tar=application/x-tar,.zip=application/zip,.gif=image/gif,.jpg=image/jpeg,.jpeg=image/jpeg,.png=image/png,.css=text/css,.html=text/html,.htm=text/html,.js=text/javascript,.c=text/plain,.cpp=text/plain,.log=text/plain,.conf=text/plain,.text=text/plain,.txt=text/plain,.dtd=text/xml,.bz2=application/x-bzip,.tbz=application/x-bzip-compressed-tar,.tar.bz2=application/x-bzip-compressed-tar
 390 EOF
 391 }
 392
 393 gitweb_conf() {
 394         cat > "$fqgitdir/gitweb/gitweb_config.perl" <<EOF
 395 #!/usr/bin/perl
 396 our \$projectroot = "$(dirname "$fqgitdir")";
 397 our \$git_temp = "$fqgitdir/gitweb/tmp";
 398 our \$projects_list = \$projectroot;
 399 EOF
 400 }
 401
 402 gitweb_conf
 403
 404 resolve_full_httpd
 405 mkdir -p "$fqgitdir/gitweb/$httpd_only"
 406
 407 case "$httpd" in
 408 *lighttpd*)
 409         lighttpd_conf
 410         ;;
 411 *apache2*)
 412         apache2_conf
 413         ;;
 414 webrick)
 415         webrick_conf
 416         ;;
 417 *mongoose*)
 418         mongoose_conf
 419         ;;
 420 *)
 421         echo "Unknown httpd specified: $httpd"
 422         exit 1
 423         ;;
 424 esac
 425
 426 start_httpd
 427 url=http://127.0.0.1:$port
 428
 429 if test -n "$browser"; then
 430         httpd_is_ready && git web--browse -b "$browser" $url || echo $url
 431 else
 432         httpd_is_ready && git web--browse -c "instaweb.browser" $url || echo $url
 433 fi