update build_docu.jl

Author: ufechner7

scripts/build_docu.jl

@@ -2,6 +2,21 @@
 # you must have installed the package LiveServer in your global environment
 
 using Pkg
+
+function globaldependencies()
+    projectpath = Pkg.project().path
+    basepath, _ = splitdir(projectpath)
+    Pkg.activate()
+    globaldependencies = keys(Pkg.project().dependencies)
+    Pkg.activate(basepath)
+    globaldependencies
+end
+
+if !("LiveServer" in globaldependencies())
+    println("Installing LiveServer globally!")
+    run(`julia -e 'using Pkg; Pkg.add("LiveServer")'`)
+end
+
 if !("Documenter" ∈ keys(Pkg.project().dependencies))
     using TestEnv
     TestEnv.activate()