1 files changed, 72 insertions, 0 deletions
diff --git a/src/eclipse/update-workspace.sh b/src/eclipse/update-workspace.sh
new file mode 100755
index 0000000000..24382d1445
--- /dev/null
+++ b/src/eclipse/update-workspace.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+
+function usage() {
+    echo "$0 scala_checkout_dir [workspace_dir]"
+    echo "\n Add necessary path variables to Eclipse workspace settings for Scalac to build"
+}
+
+METADATA_DIR=`pwd`/.metadata
+
+if [ $# -lt 1 ]; then
+    echo "Need the Scala directory checkout as argument"
+    exit 1
+fi
+
+SCALA_DIR=$1
+
+if [ ! -z $2 ]; then
+    METADATA_DIR=$2/.metadata
+fi
+
+if [ ! -d $METADATA_DIR ]; then
+    echo "$METADATA_DIR is not a directory"
+    exit 1
+fi
+
+echo "Using metadata directory $METADATA_DIR and Scala checkout $SCALA_DIR" 
+
+CORE_PREFS=$METADATA_DIR/.plugins/org.eclipse.core.runtime/.settings/org.eclipse.core.resources.prefs
+if [ ! -f $CORE_PREFS ]; then
+    echo "Couldn't find $CORE_PREFS. Is $METADATA_DIR an Eclipse workspace?"
+    exit 1
+fi
+echo -e "Workspace preferences:\t$CORE_PREFS"
+
+JDT_PREFS=$METADATA_DIR/.plugins/org.eclipse.core.runtime/.settings/org.eclipse.jdt.core.prefs
+if [ ! -f $JDT_PREFS ]; then
+    echo "Couldn't find $JDT_PREFS. Creating fresh file."
+    touch $JDT_PREFS
+fi
+echo -e "JDT preferences:\t$JDT_PREFS" 
+
+# $1 - preference file (will be backed-up before writing)
+# $2 - preference key
+# $3 - preference value
+function updatePref() {
+    mv $1 ${1}_backup
+      
+    awk -v key=$2 -v value=$3 '
+    BEGIN { 
+        FS="="; 
+        OFS="=";
+        prev=""
+    }
+    { 
+        if ($1 == key) {
+            prev=$2
+            $2=value
+        }
+        print
+    }
+    END { 
+        if (prev) {
+            printf "Updated existing value from %s to %s\n", prev, value > "/dev/stderr"
+        } else {
+            print key,value
+        }
+    }
+    ' ${1}_backup >$1
+}
+
+updatePref $CORE_PREFS "pathvariable.SCALA_BASEDIR" $SCALA_DIR
+updatePref $JDT_PREFS "org.eclipse.jdt.core.classpathVariable.SCALA_BASEDIR" $SCALA_DIR