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