inline docu for web installer

diff --git a/www/install.sh b/www/install.sh
index 3f0b436..a8c512a 100755 (executable)
--- a/www/install.sh
+++ b/www/install.sh
@@ -1,11 +1,13 @@
 #!/bin/sh
-# (c) Konrad Rosenbaum, 2007-2011
+#
+# (c) Konrad Rosenbaum, 2007-2012
 # protected under the GNU AGPL version 3 or at your option any newer
 # see COPYING.AGPL
 
-
+#get the directory this script comes from
 BASE=$(cd `dirname $0`; pwd)
 
+#check that we have exactly one argument: a directory
 if test $# -ne 1 ; then
  echo Usage: $0 '<directory>'
  echo
@@ -14,16 +16,23 @@ if test $# -ne 1 ; then
  exit 1
 fi
 
+#create target directory
 TARGET=$1
-mkdir -p $TARGET
+mkdir -p $TARGET || {
+       echo Unable to create directory $TARGET, giving up.
+       exit 1
+}
 
 echo "Copying/Linking from $BASE to $TARGET..."
 
+#link routine, argument: file/dir to symlink from base to target dir
 xln(){
  echo "Linking $1..."
  ln -sfT $BASE/$1 $TARGET/$1
 }
 
+#link all active content: scripts, base pictures, htaccess, translations
+# ...stuff that is not customized by the user
 xln inc
 xln images
 xln admin.php
@@ -32,6 +41,10 @@ xln machine.php
 xln translations
 xln .htaccess
 
+#copy routine, arguments:
+# $1: target file name
+# $2: optional - source file name, if not present identical to $1
+#does nothing if the target exists
 xcp(){
  a=$TARGET/$1
  test x$2 == x && b=$BASE/$1 || b=$BASE/$2
@@ -42,6 +55,11 @@ xcp(){
  }
 }
 
+#copy all templates that need to be adjusted by the user
 xcp styles
 xcp template
 xcp config.php config.php.template
+
+
+echo "Done. Please edit the configuration and check that the installation works."
+exit 0