git-instaweb.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2006 Eric Wong
   4 #
   5 USAGE='[--start] [--stop] [--restart]
   6   [--local] [--httpd=<httpd>] [--port=<port>] [--browser=<browser>]
   7   [--module-path=<path> (for Apache2 only)]'
   8
   9 . git-sh-setup
  10
  11 fqgitdir="$GIT_DIR"
  12 local="`git config --bool --get instaweb.local`"
  13 httpd="`git config --get instaweb.httpd`"
  14 browser="`git config --get instaweb.browser`"
  15 port=`git config --get instaweb.port`
  16 module_path="`git config --get instaweb.modulepath`"
  17
  18 conf=$GIT_DIR/gitweb/httpd.conf
  19
  20 # Defaults:
  21
  22 # if installed, it doesn't need further configuration (module_path)
  23 test -z "$httpd" && httpd='lighttpd -f'
  24
  25 # probably the most popular browser among gitweb users
  26 test -z "$browser" && browser='firefox'
  27
  28 # any untaken local port will do...
  29 test -z "$port" && port=1234
  30
  31 start_httpd () {
  32         httpd_only="`echo $httpd | cut -f1 -d' '`"
  33         if test "`expr index $httpd_only /`" -eq '1' || \
  34                                 which $httpd_only >/dev/null
  35         then
  36                 $httpd $fqgitdir/gitweb/httpd.conf
  37         else
  38                 # many httpds are installed in /usr/sbin or /usr/local/sbin
  39                 # these days and those are not in most users $PATHs
  40                 # in addition, we may have generated a server script
  41                 # in $fqgitdir/gitweb.
  42                 for i in /usr/local/sbin /usr/sbin "$fqgitdir/gitweb"
  43                 do
  44                         if test -x "$i/$httpd_only"
  45                         then
  46                                 # don't quote $httpd, there can be
  47                                 # arguments to it (-f)
  48                                 $i/$httpd "$fqgitdir/gitweb/httpd.conf"
  49                                 return
  50                         fi
  51                 done
  52                 echo "$httpd_only not found. Install $httpd_only or use" \
  53                      "--httpd to specify another http daemon."
  54                 exit 1
  55         fi
  56         if test $? != 0; then
  57                 echo "Could not execute http daemon $httpd."
  58                 exit 1
  59         fi
  60 }
  61
  62 stop_httpd () {
  63         test -f "$fqgitdir/pid" && kill `cat "$fqgitdir/pid"`
  64 }
  65
  66 while test $# != 0
  67 do
  68         case "$1" in
  69         --stop|stop)
  70                 stop_httpd
  71                 exit 0
  72                 ;;
  73         --start|start)
  74                 start_httpd
  75                 exit 0
  76                 ;;
  77         --restart|restart)
  78                 stop_httpd
  79                 start_httpd
  80                 exit 0
  81                 ;;
  82         --local|-l)
  83                 local=true
  84                 ;;
  85         -d|--httpd|--httpd=*)
  86                 case "$#,$1" in
  87                 *,*=*)
  88                         httpd=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  89                 1,*)
  90                         usage ;;
  91                 *)
  92                         httpd="$2"
  93                         shift ;;
  94                 esac
  95                 ;;
  96         -b|--browser|--browser=*)
  97                 case "$#,$1" in
  98                 *,*=*)
  99                         browser=`expr "$1" : '-[^=]*=\(.*\)'` ;;
 100                 1,*)
 101                         usage ;;
 102                 *)
 103                         browser="$2"
 104                         shift ;;
 105                 esac
 106                 ;;
 107         -p|--port|--port=*)
 108                 case "$#,$1" in
 109                 *,*=*)
 110                         port=`expr "$1" : '-[^=]*=\(.*\)'` ;;
 111                 1,*)
 112                         usage ;;
 113                 *)
 114                         port="$2"
 115                         shift ;;
 116                 esac
 117                 ;;
 118         -m|--module-path=*|--module-path)
 119                 case "$#,$1" in
 120                 *,*=*)
 121                         module_path=`expr "$1" : '-[^=]*=\(.*\)'` ;;
 122                 1,*)
 123                         usage ;;
 124                 *)
 125                         module_path="$2"
 126                         shift ;;
 127                 esac
 128                 ;;
 129         *)
 130                 usage
 131                 ;;
 132         esac
 133         shift
 134 done
 135
 136 mkdir -p "$GIT_DIR/gitweb/tmp"
 137 GIT_EXEC_PATH="`git --exec-path`"
 138 GIT_DIR="$fqgitdir"
 139 export GIT_EXEC_PATH GIT_DIR
 140
 141
 142 lighttpd_conf () {
 143         cat > "$conf" <<EOF
 144 server.document-root = "$fqgitdir/gitweb"
 145 server.port = $port
 146 server.modules = ( "mod_cgi" )
 147 server.indexfiles = ( "gitweb.cgi" )
 148 server.pid-file = "$fqgitdir/pid"
 149 cgi.assign = ( ".cgi" => "" )
 150 mimetype.assign = ( ".css" => "text/css" )
 151 EOF
 152         test "$local" = true && echo 'server.bind = "127.0.0.1"' >> "$conf"
 153 }
 154
 155 apache2_conf () {
 156         test -z "$module_path" && module_path=/usr/lib/apache2/modules
 157         mkdir -p "$GIT_DIR/gitweb/logs"
 158         bind=
 159         test "$local" = true && bind='127.0.0.1:'
 160         echo 'text/css css' > $fqgitdir/mime.types
 161         cat > "$conf" <<EOF
 162 ServerName "git-instaweb"
 163 ServerRoot "$fqgitdir/gitweb"
 164 DocumentRoot "$fqgitdir/gitweb"
 165 PidFile "$fqgitdir/pid"
 166 Listen $bind$port
 167 EOF
 168
 169         for mod in mime dir; do
 170                 if test -e $module_path/mod_${mod}.so; then
 171                         echo "LoadModule ${mod}_module " \
 172                              "$module_path/mod_${mod}.so" >> "$conf"
 173                 fi
 174         done
 175         cat >> "$conf" <<EOF
 176 TypesConfig $fqgitdir/mime.types
 177 DirectoryIndex gitweb.cgi
 178 EOF
 179
 180         # check to see if Dennis Stosberg's mod_perl compatibility patch
 181         # (<20060621130708.Gcbc6e5c@leonov.stosberg.net>) has been applied
 182         if test -f "$module_path/mod_perl.so" && grep '^our $gitbin' \
 183                                 "$GIT_DIR/gitweb/gitweb.cgi" >/dev/null
 184         then
 185                 # favor mod_perl if available
 186                 cat >> "$conf" <<EOF
 187 LoadModule perl_module $module_path/mod_perl.so
 188 PerlPassEnv GIT_DIR
 189 PerlPassEnv GIT_EXEC_DIR
 190 <Location /gitweb.cgi>
 191         SetHandler perl-script
 192         PerlResponseHandler ModPerl::Registry
 193         PerlOptions +ParseHeaders
 194         Options +ExecCGI
 195 </Location>
 196 EOF
 197         else
 198                 # plain-old CGI
 199                 list_mods=`echo "$httpd" | sed "s/-f$/-l/"`
 200                 $list_mods | grep 'mod_cgi\.c' >/dev/null 2>&1 || \
 201                 echo "LoadModule cgi_module $module_path/mod_cgi.so" >> "$conf"
 202                 cat >> "$conf" <<EOF
 203 AddHandler cgi-script .cgi
 204 <Location /gitweb.cgi>
 205         Options +ExecCGI
 206 </Location>
 207 EOF
 208         fi
 209 }
 210
 211 script='
 212 s#^\(my\|our\) $projectroot =.*#\1 $projectroot = "'`dirname $fqgitdir`'";#
 213 s#\(my\|our\) $gitbin =.*#\1 $gitbin = "'$GIT_EXEC_PATH'";#
 214 s#\(my\|our\) $projects_list =.*#\1 $projects_list = $projectroot;#
 215 s#\(my\|our\) $git_temp =.*#\1 $git_temp = "'$fqgitdir/gitweb/tmp'";#'
 216
 217 gitweb_cgi () {
 218         cat > "$1.tmp" <<\EOFGITWEB
 219 @@GITWEB_CGI@@
 220 EOFGITWEB
 221         sed "$script" "$1.tmp"  > "$1"
 222         chmod +x "$1"
 223         rm -f "$1.tmp"
 224 }
 225
 226 gitweb_css () {
 227         cat > "$1" <<\EOFGITWEB
 228 @@GITWEB_CSS@@
 229 EOFGITWEB
 230 }
 231
 232 gitweb_cgi $GIT_DIR/gitweb/gitweb.cgi
 233 gitweb_css $GIT_DIR/gitweb/gitweb.css
 234
 235 case "$httpd" in
 236 *lighttpd*)
 237         lighttpd_conf
 238         ;;
 239 *apache2*)
 240         apache2_conf
 241         ;;
 242 *)
 243         echo "Unknown httpd specified: $httpd"
 244         exit 1
 245         ;;
 246 esac
 247
 248 start_httpd
 249 test -z "$browser" && browser=echo
 250 url=http://127.0.0.1:$port
 251 $browser $url || echo $url