cleaned up linker

utils/link-components.sh

 #!/bin/bash
 #
-# Script to borrow essential bits from another lodspeakr.
+# Script to borrow essential bits ;rom another lodspeakr instance on local machine.
 # Desired when lodspeakr essentials are maintained in a project-specfic repository.
 # Contributed by Tim Lebo when trying to apply lodspeakr for DataFAQs.
+#
+# Usage:
+#  bash-3.2$ pwd
+#  /Applications/XAMPP/htdocs/hello/lodspeakr
+#
+#  bash-3.2$ sudo rm -rf .htaccess settings.inc.php models views
+#
+#  bash-3.2$ sudo /Users/lebo/projects/lodspeakr/github/lodspeakr/utils/link-components.sh /Users/lebo/projects/DataFAQs/github/DataFAQs/ui/configure-epoch/lodspeakr
+#  ln -s /Users/lebo/projects/DataFAQs/github/DataFAQs/ui/configure-epoch/lodspeakr/settings.inc.php settings.inc.php
+#  ln -s /Users/lebo/projects/DataFAQs/github/DataFAQs/ui/configure-epoch/lodspeakr/.htaccess .htaccess
+#  ln -s /Users/lebo/projects/DataFAQs/github/DataFAQs/ui/configure-epoch/lodspeakr/models models
+#  ln -s /Users/lebo/projects/DataFAQs/github/DataFAQs/ui/configure-epoch/lodspeakr/views views
+#
+#  bash-3.2$ sudo /Users/lebo/projects/lodspeakr/github/lodspeakr/utils/link-components.sh /Users/lebo/projects/DataFAQs/github/DataFAQs/ui/configure-epoch/lodspeakr
+#  WARNING: not linking settings.inc.php because it exists.
+#  WARNING: not linking .htaccess because it exists.
+#  WARNING: not linking models because it exists.
+#  WARNING: not linking views because it exists.
 
 if [ $# -lt 1 ]; then
    echo "usage: `basename $0` other-lodspeakr-directory"
    exit 1 
 fi
 
-if [ ! -d $otherDir ]; then
+otherDir="$1"
+if [[ ! -d $otherDir && "$otherDir" != "/" ]]; then
    echo "$otherDir does not exist."
    exit 1
 fi
 
-if [[ ! -e settings.inc.php && -e $otherDir/settings.inc.php ]]; then
-   echo ln -s $otherDir/settings.inc.phpl settings.inc.php
-   ln -s $otherDir/settings.inc.phpl settings.inc.php
-else
-   echo "WARNING: not linking settings.inc.phpl because it exists."
-fi
-
-if [[ ! -e .htaccess && -e $otherDir/.htaccess ]]; then
-   echo ln -s $otherDir/models models
-   ln -s $otherDir/models models
-else
-   echo "WARNING: not linking models/ because it exists."
-fi
-
-if [[ ! -e models && -e $otherDir/models ]]; then
-   echo ln -s $otherDir/models models
-   ln -s $otherDir/models models
-else
-   echo "WARNING: not linking models/ because it exists."
-fi
-
-if [[ ! -e views && -e $otherDir/views ]]; then
-   echo ln -s $otherDir/views views
-   ln -s $otherDir/views views
-else
-   echo "WARNING: not linking views/ because it exists."
-fi
+for essential in settings.inc.php .htaccess models views; do
+   if [[ ! -e $essential && -e $otherDir/$essential ]]; then
+      echo ln -s $otherDir/$essential $essential
+      ln -s $otherDir/$essential
+   else
+      echo "WARNING: not linking $essential because it exists."
+   fi
+done