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 case "$GIT_DIR" in
  12 /*)
  13         fqgitdir="$GIT_DIR" ;;
  14 *)
  15         fqgitdir="$PWD/$GIT_DIR" ;;
  16 esac
  17
  18 local="`git repo-config --bool --get instaweb.local`"
  19 httpd="`git repo-config --get instaweb.httpd`"
  20 browser="`git repo-config --get instaweb.browser`"
  21 port=`git repo-config --get instaweb.port`
  22 module_path="`git repo-config --get instaweb.modulepath`"
  23
  24 conf=$GIT_DIR/gitweb/httpd.conf
  25
  26 # Defaults:
  27
  28 # if installed, it doesn't need further configuration (module_path)
  29 test -z "$httpd" && httpd='lighttpd -f'
  30
  31 # probably the most popular browser among gitweb users
  32 test -z "$browser" && browser='firefox'
  33
  34 # any untaken local port will do...
  35 test -z "$port" && port=1234
  36
  37 start_httpd () {
  38         httpd_only="`echo $httpd | cut -f1 -d' '`"
  39         if test "`expr index $httpd_only /`" -eq '1' || \
  40                                 which $httpd_only >/dev/null
  41         then
  42                 $httpd $fqgitdir/gitweb/httpd.conf
  43         else
  44                 # many httpds are installed in /usr/sbin or /usr/local/sbin
  45                 # these days and those are not in most users $PATHs
  46                 for i in /usr/local/sbin /usr/sbin
  47                 do
  48                         if test -x "$i/$httpd_only"
  49                         then
  50                                 # don't quote $httpd, there can be
  51                                 # arguments to it (-f)
  52                                 $i/$httpd "$fqgitdir/gitweb/httpd.conf"
  53                                 return
  54                         fi
  55                 done
  56         fi
  57         if test $? != 0; then
  58                 echo "Could not execute http daemon $httpd."
  59                 exit 1
  60         fi
  61 }
  62
  63 stop_httpd () {
  64         test -f "$fqgitdir/pid" && kill `cat "$fqgitdir/pid"`
  65 }
  66
  67 while case "$#" in 0) break ;; esac
  68 do
  69         case "$1" in
  70         --stop|stop)
  71                 stop_httpd
  72                 exit 0
  73                 ;;
  74         --start|start)
  75                 start_httpd
  76                 exit 0
  77                 ;;
  78         --restart|restart)
  79                 stop_httpd
  80                 start_httpd
  81                 exit 0
  82                 ;;
  83         --local|-l)
  84                 local=true
  85                 ;;
  86         -d|--httpd|--httpd=*)
  87                 case "$#,$1" in
  88                 *,*=*)
  89                         httpd=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  90                 1,*)
  91                         usage ;;
  92                 *)
  93                         httpd="$2"
  94                         shift ;;
  95                 esac
  96                 ;;
  97         -b|--browser|--browser=*)
  98                 case "$#,$1" in
  99                 *,*=*)
 100                         browser=`expr "$1" : '-[^=]*=\(.*\)'` ;;
 101                 1,*)
 102                         usage ;;
 103                 *)
 104                         browser="$2"
 105                         shift ;;
 106                 esac
 107                 ;;
 108         -p|--port|--port=*)
 109                 case "$#,$1" in
 110                 *,*=*)
 111                         port=`expr "$1" : '-[^=]*=\(.*\)'` ;;
 112                 1,*)
 113                         usage ;;
 114                 *)
 115                         port="$2"
 116                         shift ;;
 117                 esac
 118                 ;;
 119         -m|--module-path=*|--module-path)
 120                 case "$#,$1" in
 121                 *,*=*)
 122                         module_path=`expr "$1" : '-[^=]*=\(.*\)'` ;;
 123                 1,*)
 124                         usage ;;
 125                 *)
 126                         module_path="$2"
 127                         shift ;;
 128                 esac
 129                 ;;
 130         *)
 131                 usage
 132                 ;;
 133         esac
 134         shift
 135 done
 136
 137 mkdir -p "$GIT_DIR/gitweb/tmp"
 138 GIT_EXEC_PATH="`git --exec-path`"
 139 GIT_DIR="$fqgitdir"
 140 export GIT_EXEC_PATH GIT_DIR
 141
 142
 143 lighttpd_conf () {
 144         cat > "$conf" <<EOF
 145 server.document-root = "$fqgitdir/gitweb"
 146 server.port = $port
 147 server.modules = ( "mod_cgi" )
 148 server.indexfiles = ( "gitweb.cgi" )
 149 server.pid-file = "$fqgitdir/pid"
 150 cgi.assign = ( ".cgi" => "" )
 151 mimetype.assign = ( ".css" => "text/css" )
 152 EOF
 153         test "$local" = true && echo 'server.bind = "127.0.0.1"' >> "$conf"
 154 }
 155
 156 apache2_conf () {
 157         test -z "$module_path" && module_path=/usr/lib/apache2/modules
 158         mkdir -p "$GIT_DIR/gitweb/logs"
 159         bind=
 160         test "$local" = true && bind='127.0.0.1:'
 161         echo 'text/css css' > $fqgitdir/mime.types
 162         cat > "$conf" <<EOF
 163 ServerName "git-instaweb"
 164 ServerRoot "$fqgitdir/gitweb"
 165 DocumentRoot "$fqgitdir/gitweb"
 166 PidFile "$fqgitdir/pid"
 167 Listen $bind$port
 168 EOF
 169
 170         for mod in mime dir; do
 171                 if test -e $module_path/mod_${mod}.so; then
 172                         echo "LoadModule ${mod}_module " \
 173                              "$module_path/mod_${mod}.so" >> "$conf"
 174                 fi
 175         done
 176         cat >> "$conf" <<EOF
 177 TypesConfig $fqgitdir/mime.types
 178 DirectoryIndex gitweb.cgi
 179 EOF
 180
 181         # check to see if Dennis Stosberg's mod_perl compatibility patch
 182         # (<20060621130708.Gcbc6e5c@leonov.stosberg.net>) has been applied
 183         if test -f "$module_path/mod_perl.so" && grep '^our $gitbin' \
 184                                 "$GIT_DIR/gitweb/gitweb.cgi" >/dev/null
 185         then
 186                 # favor mod_perl if available
 187                 cat >> "$conf" <<EOF
 188 LoadModule perl_module $module_path/mod_perl.so
 189 PerlPassEnv GIT_DIR
 190 PerlPassEnv GIT_EXEC_DIR
 191 <Location /gitweb.cgi>
 192         SetHandler perl-script
 193         PerlResponseHandler ModPerl::Registry
 194         PerlOptions +ParseHeaders
 195         Options +ExecCGI
 196 </Location>
 197 EOF
 198         else
 199                 # plain-old CGI
 200                 list_mods=`echo "$httpd" | sed "s/-f$/-l/"`
 201                 $list_mods | grep 'mod_cgi\.c' >/dev/null 2>&1 || \
 202                 echo "LoadModule cgi_module $module_path/mod_cgi.so" >> "$conf"
 203                 cat >> "$conf" <<EOF
 204 AddHandler cgi-script .cgi
 205 <Location /gitweb.cgi>
 206         Options +ExecCGI
 207 </Location>
 208 EOF
 209         fi
 210 }
 211
 212 script='
 213 s#^\(my\|our\) $projectroot =.*#\1 $projectroot = "'`dirname $fqgitdir`'";#
 214 s#\(my\|our\) $gitbin =.*#\1 $gitbin = "'$GIT_EXEC_PATH'";#
 215 s#\(my\|our\) $projects_list =.*#\1 $projects_list = $projectroot;#
 216 s#\(my\|our\) $git_temp =.*#\1 $git_temp = "'$fqgitdir/gitweb/tmp'";#'
 217
 218 gitweb_cgi () {
 219         cat > "$1.tmp" <<\EOFGITWEB
 220 @@GITWEB_CGI@@
 221 EOFGITWEB
 222         sed "$script" "$1.tmp"  > "$1"
 223         chmod +x "$1"
 224         rm -f "$1.tmp"
 225 }
 226
 227 gitweb_css () {
 228         cat > "$1" <<\EOFGITWEB
 229 @@GITWEB_CSS@@
 230 EOFGITWEB
 231 }
 232
 233 gitweb_cgi $GIT_DIR/gitweb/gitweb.cgi
 234 gitweb_css $GIT_DIR/gitweb/gitweb.css
 235
 236 case "$httpd" in
 237 *lighttpd*)
 238         lighttpd_conf
 239         ;;
 240 *apache2*)
 241         apache2_conf
 242         ;;
 243 *)
 244         echo "Unknown httpd specified: $httpd"
 245         exit 1
 246         ;;
 247 esac
 248
 249 start_httpd
 250 test -z "$browser" && browser=echo
 251 url=http://127.0.0.1:$port
 252 $browser $url || echo $url