1 files changed, 38 insertions, 0 deletions
diff --git a/common.inc b/common.inc
new file mode 100644
index 0000000..f56290b
--- /dev/null
+++ b/common.inc
@@ -0,0 +1,38 @@
+function readlink_ex
+{
+    script_location=
+    FAILURE=0
+    if [ -e "$(which readlink 2>/dev/null)" ]; then
+        export script_location=$(dirname `readlink -f "$1"`)
+        retval=$?
+        if [ $retval -ne 0 ]; then
+            export FAILURE=1
+        fi
+    else
+        export FAILURE=0
+    fi
+
+    # Well, if readlink doesn't work we only have one more option (i.e that I care to implement)
+    if [ $FAILURE -ne 0 ];then 
+        export FAILURE=0
+        export script_location=$(python -c "from __future__ import print_function; import os; print('{0}'.format(os.path.abspath(os.curdir)));")
+        retval=$?
+        if [ $retval -ne 0 ]; then
+            export FAILURE=1
+        fi
+    fi 
+
+    if [ $FAILURE -ne 0 ]; then
+        echo "readlink failure. abort." 
+        exit 1
+    fi
+    
+    echo $script_location 
+}
+
+function init_vars
+{
+    scripts_default=( preinstall postinstall )
+    PKGBUILD_CMD="pkgbuild"
+    PKGBUILD_ARGS="--scripts $PKG_SCRIPTS --identifier edu.stsci.$PKG_NAME.pkg --root $PKG_ROOT"
+}