feat: allow absolute urls for scripts, styles, and brand image

Author: pfitzseb

src/MultiDocumenter.jl

@@ -231,13 +231,16 @@ function make_global_stylesheet(custom_stylesheets, path)
     out = []
 
     for stylesheet in custom_stylesheets
+        stylesheet = startswith(stylesheet, r"https?://") ?
+            stylesheet :
+            replace(joinpath(path, stylesheet), raw"\\" => "/")
         style = Gumbo.HTMLElement{:link}(
             [],
             Gumbo.NullNode(),
             Dict(
                 "rel" => "stylesheet",
                 "type" => "text/css",
-                "href" => string(path, "/", stylesheet),
+                "href" => stylesheet,
             ),
         )
         push!(out, style)
@@ -250,11 +253,14 @@ function make_global_scripts(custom_scripts, path)
     out = []
 
     for script in custom_scripts
+        script = startswith(script, r"https?://") ?
+            script :
+            replace(joinpath(path, script), raw"\\" => "/")
         js = Gumbo.HTMLElement{:script}(
             [],
             Gumbo.NullNode(),
             Dict(
-                "src" => string(path, "/", script),
+                "src" => script,
                 "type" => "text/javascript",
                 "charset" => "utf-8",
             ),

src/renderers.jl

@@ -1,9 +1,15 @@
 render(::Nothing, args...) = nothing
 
 function render(brand_image::BrandImage, dir, thispagepath)
+    href = startswith(brand_image.path, "https?://") ?
+        brand_image.path :
+        relpath(joinpath(dir, brand_image.path), thispagepath)
+    src = startswith(brand_image.imagepath, "https?://") ?
+        brand_image.imagepath :
+        relpath(joinpath(dir, brand_image.imagepath), thispagepath)
     return @htl """
-    <a class="brand" href="$(relpath(joinpath(dir, brand_image.path), thispagepath))">
-        <img src="$(relpath(joinpath(dir, brand_image.imagepath), thispagepath))" alt="home">
+    <a class="brand" href="$(href)">
+        <img src="$(src)" alt="home">
     </a>"""
 end