LaTeX: add custom page header with url

conf.py

@@ -78,6 +78,37 @@ def setup(app):
 
 # -- LATEX ---------------------------------------------------------------
 
+latex_macros += r'''
+\makeatletter
+\ltx@ifundefined{fancyhf}{}{
+  % Use \pagestyle{normal} as the primary pagestyle for text.
+  \fancypagestyle{normal}{
+    \fancyhf{}
+% (for \py@HeaderFamily cf "TITLES")
+    \fancyfoot[LE,RO]{{\py@HeaderFamily\thepage}}
+    \fancyfoot[LO]{{\py@HeaderFamily\nouppercase{\rightmark}}}
+    \fancyfoot[RE]{{\py@HeaderFamily\nouppercase{\leftmark}}}
+    \fancyhead[LE,RO]{{\py@HeaderFamily
+    \href{http://sfstoolbox.org/}{\color{black}http://sfstoolbox.org/} \hfill \py@release}}
+    \renewcommand{\headrulewidth}{0.4pt}
+    \renewcommand{\footrulewidth}{0.4pt}
+    % define chaptermark with \@chappos when \@chappos is available for Japanese
+    \ltx@ifundefined{@chappos}{}
+      {\def\chaptermark##1{\markboth{\@chapapp\space\thechapter\space\@chappos\space ##1}{}}}
+  }
+  % Update the plain style so we get the page number & footer line,
+  % but not a chapter or section title.  This is to keep the first
+  % page of a chapter and the blank page between chapters `clean.'
+  \fancypagestyle{plain}{
+    \fancyhf{}
+    \fancyfoot[LE,RO]{{\py@HeaderFamily\thepage}}
+    \renewcommand{\headrulewidth}{0pt}
+    \renewcommand{\footrulewidth}{0.4pt}
+  }
+}
+\makeatother
+'''
+
 latex_elements = {
         'papersize': 'a4paper',
         'pointsize': '10pt',