Fixes #6759: validation of html static paths and extra paths no longe…

…r throws an error if the paths are in different directories

AUTHORS

@@ -25,6 +25,7 @@ Other contributors, listed alphabetically, are:
 * Henrique Bastos -- SVG support for graphviz extension
 * Daniel Bültmann -- todo extension
 * Marco Buttu -- doctest extension (pyversion option)
+* Nathan Damon -- bugfix in validation of static paths in html builders
 * Etienne Desautels -- apidoc module
 * Michael Droettboom -- inheritance_diagram extension
 * Charles Duffy -- original graphviz extension

CHANGES

@@ -18,6 +18,7 @@ Bugs fixed
 
 * #6641: LaTeX: Undefined control sequence ``\sphinxmaketitle``
 * #6710: LaTeX not well configured for Greek language as main language
+* #6759: validation of html static paths and extra paths no longer throws an error if the paths are in different directories
 
 Testing
 --------

sphinx/builders/html.py

@@ -1162,9 +1162,14 @@ def validate_html_extra_path(app: Sphinx, config: Config) -> None:
         if not path.exists(extra_path):
             logger.warning(__('html_extra_path entry %r does not exist'), entry)
             config.html_extra_path.remove(entry)
-        elif path.commonpath([app.outdir, extra_path]) == app.outdir:
-            logger.warning(__('html_extra_path entry %r is placed inside outdir'), entry)
-            config.html_extra_path.remove(entry)
+        else:
+            try: 
+                common_path = path.commonpath([app.outdir, extra_path]) 
+            except ValueError: # different directories, can skip to next
+                continue
+            if common_path == app.outdir:
+                logger.warning(__('html_extra_path entry %r is placed inside outdir'), entry)
+                config.html_extra_path.remove(entry)
 
 
 def validate_html_static_path(app: Sphinx, config: Config) -> None:
@@ -1174,9 +1179,14 @@ def validate_html_static_path(app: Sphinx, config: Config) -> None:
         if not path.exists(static_path):
             logger.warning(__('html_static_path entry %r does not exist'), entry)
             config.html_static_path.remove(entry)
-        elif path.commonpath([app.outdir, static_path]) == app.outdir:
-            logger.warning(__('html_static_path entry %r is placed inside outdir'), entry)
-            config.html_static_path.remove(entry)
+        else:
+            try:
+                common_path = path.commonpath([app.outdir, static_path])
+            except ValueError: # different directories, can skip to next
+                continue
+            if common_path == app.outdir:
+                logger.warning(__('html_static_path entry %r is placed inside outdir'), entry)
+                config.html_static_path.remove(entry)
 
 
 def validate_html_logo(app: Sphinx, config: Config) -> None: