added synlink creation/update utility

autodeploy/symlink.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+function symlink() {
+    local target="$1"
+    local link="$2"
+
+    local arrow="$link -> $target"
+    local current_target=$(readlink "$link")
+
+    # link is already correct
+    if [ -L "$link" ] && [ "$current_target" == "$target" ]; then
+        echo "Symlink ($arrow) already exists"
+        return 0
+    fi
+
+    # link exists but is not a symlink
+    if [ -e "$link" ] && [ ! -L "$link" ]; then
+        echo "Error: $link exists but is not a symlink"
+        exit 1
+    fi
+
+    # link points to wrong target
+    if [ -L "$link" ]; then
+        echo "Symlink $link points to the wrong target: $current_target"
+        rm "$link"
+    fi
+
+    ln -s "$target" "$link"
+    echo "Symlink ($arrow) created"
+}
+
+
+if [ $# -ne 2 ]; then
+    echo "Usage: $0 <target> <link>"
+    exit 1
+fi
+
+target="$1"
+link="$2"
+
+symlink "$target" "$link"
+
+