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 "$fqgitdir/gitweb/httpd.conf"
  53                                 return
  54                         fi
  55                 done
  56                 echo "$httpd_only not found. Install $httpd_only or use" \
  57                      "--httpd to specify another http daemon."
  58                 exit 1
  59         fi
  60         if test $? != 0; then
  61                 echo "Could not execute http daemon $httpd."
  62                 exit 1
  63         fi
  64 }
  65
  66 stop_httpd () {
  67         test -f "$fqgitdir/pid" && kill `cat "$fqgitdir/pid"`
  68 }
  69
  70 while case "$#" in 0) break ;; esac
  71 do
  72         case "$1" in
  73         --stop|stop)
  74                 stop_httpd
  75                 exit 0
  76                 ;;
  77         --start|start)
  78                 start_httpd
  79                 exit 0
  80                 ;;
  81         --restart|restart)
  82                 stop_httpd
  83                 start_httpd
  84                 exit 0
  85                 ;;
  86         --local|-l)
  87                 local=true
  88                 ;;
  89         -d|--httpd|--httpd=*)
  90                 case "$#,$1" in
  91                 *,*=*)
  92                         httpd=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  93                 1,*)
  94                         usage ;;
  95                 *)
  96                         httpd="$2"
  97                         shift ;;
  98                 esac
  99                 ;;
 100         -b|--browser|--browser=*)
 101                 case "$#,$1" in
 102                 *,*=*)
 103                         browser=`expr "$1" : '-[^=]*=\(.*\)'` ;;
 104                 1,*)
 105                         usage ;;
 106                 *)
 107                         browser="$2"
 108                         shift ;;
 109                 esac
 110                 ;;
 111         -p|--port|--port=*)
 112                 case "$#,$1" in
 113                 *,*=*)
 114                         port=`expr "$1" : '-[^=]*=\(.*\)'` ;;
 115                 1,*)
 116                         usage ;;
 117                 *)
 118                         port="$2"
 119                         shift ;;
 120                 esac
 121                 ;;
 122         -m|--module-path=*|--module-path)
 123                 case "$#,$1" in
 124                 *,*=*)
 125                         module_path=`expr "$1" : '-[^=]*=\(.*\)'` ;;
 126                 1,*)
 127                         usage ;;
 128                 *)
 129                         module_path="$2"
 130                         shift ;;
 131                 esac
 132                 ;;
 133         *)
 134                 usage
 135                 ;;
 136         esac
 137         shift
 138 done
 139
 140 mkdir -p "$GIT_DIR/gitweb/tmp"
 141 GIT_EXEC_PATH="`git --exec-path`"
 142 GIT_DIR="$fqgitdir"
 143 export GIT_EXEC_PATH GIT_DIR
 144
 145
 146 lighttpd_conf () {
 147         cat > "$conf" <<EOF
 148 server.document-root = "$fqgitdir/gitweb"
 149 server.port = $port
 150 server.modules = ( "mod_cgi" )
 151 server.indexfiles = ( "gitweb.cgi" )
 152 server.pid-file = "$fqgitdir/pid"
 153 cgi.assign = ( ".cgi" => "" )
 154 mimetype.assign = ( ".css" => "text/css" )
 155 EOF
 156         test "$local" = true && echo 'server.bind = "127.0.0.1"' >> "$conf"
 157 }
 158
 159 apache2_conf () {
 160         test -z "$module_path" && module_path=/usr/lib/apache2/modules
 161         mkdir -p "$GIT_DIR/gitweb/logs"
 162         bind=
 163         test "$local" = true && bind='127.0.0.1:'
 164         echo 'text/css css' > $fqgitdir/mime.types
 165         cat > "$conf" <<EOF
 166 ServerName "git-instaweb"
 167 ServerRoot "$fqgitdir/gitweb"
 168 DocumentRoot "$fqgitdir/gitweb"
 169 PidFile "$fqgitdir/pid"
 170 Listen $bind$port
 171 EOF
 172
 173         for mod in mime dir; do
 174                 if test -e $module_path/mod_${mod}.so; then
 175                         echo "LoadModule ${mod}_module " \
 176                              "$module_path/mod_${mod}.so" >> "$conf"
 177                 fi
 178         done
 179         cat >> "$conf" <<EOF
 180 TypesConfig $fqgitdir/mime.types
 181 DirectoryIndex gitweb.cgi
 182 EOF
 183
 184         # check to see if Dennis Stosberg's mod_perl compatibility patch
 185         # (<20060621130708.Gcbc6e5c@leonov.stosberg.net>) has been applied
 186         if test -f "$module_path/mod_perl.so" && grep '^our $gitbin' \
 187                                 "$GIT_DIR/gitweb/gitweb.cgi" >/dev/null
 188         then
 189                 # favor mod_perl if available
 190                 cat >> "$conf" <<EOF
 191 LoadModule perl_module $module_path/mod_perl.so
 192 PerlPassEnv GIT_DIR
 193 PerlPassEnv GIT_EXEC_DIR
 194 <Location /gitweb.cgi>
 195         SetHandler perl-script
 196         PerlResponseHandler ModPerl::Registry
 197         PerlOptions +ParseHeaders
 198         Options +ExecCGI
 199 </Location>
 200 EOF
 201         else
 202                 # plain-old CGI
 203                 list_mods=`echo "$httpd" | sed "s/-f$/-l/"`
 204                 $list_mods | grep 'mod_cgi\.c' >/dev/null 2>&1 || \
 205                 echo "LoadModule cgi_module $module_path/mod_cgi.so" >> "$conf"
 206                 cat >> "$conf" <<EOF
 207 AddHandler cgi-script .cgi
 208 <Location /gitweb.cgi>
 209         Options +ExecCGI
 210 </Location>
 211 EOF
 212         fi
 213 }
 214
 215 script='
 216 s#^\(my\|our\) $projectroot =.*#\1 $projectroot = "'`dirname $fqgitdir`'";#
 217 s#\(my\|our\) $gitbin =.*#\1 $gitbin = "'$GIT_EXEC_PATH'";#
 218 s#\(my\|our\) $projects_list =.*#\1 $projects_list = $projectroot;#
 219 s#\(my\|our\) $git_temp =.*#\1 $git_temp = "'$fqgitdir/gitweb/tmp'";#'
 220
 221 gitweb_cgi () {
 222         cat > "$1.tmp" <<\EOFGITWEB
 223 @@GITWEB_CGI@@
 224 EOFGITWEB
 225         sed "$script" "$1.tmp"  > "$1"
 226         chmod +x "$1"
 227         rm -f "$1.tmp"
 228 }
 229
 230 gitweb_css () {
 231         cat > "$1" <<\EOFGITWEB
 232 @@GITWEB_CSS@@
 233 EOFGITWEB
 234 }
 235
 236 gitweb_cgi $GIT_DIR/gitweb/gitweb.cgi
 237 gitweb_css $GIT_DIR/gitweb/gitweb.css
 238
 239 case "$httpd" in
 240 *lighttpd*)
 241         lighttpd_conf
 242         ;;
 243 *apache2*)
 244         apache2_conf
 245         ;;
 246 *)
 247         echo "Unknown httpd specified: $httpd"
 248         exit 1
 249         ;;
 250 esac
 251
 252 start_httpd
 253 test -z "$browser" && browser=echo
 254 url=http://127.0.0.1:$port
 255 $browser $url || echo $url