Merge branch 'crumbs'

1 files changed, 34 insertions, 6 deletions

diff --git a/repo/www/helpers.py b/repo/www/helpers.py
index afdb64b..48ebccf 100644
--- a/repo/www/helpers.py
+++ b/repo/www/helpers.py
@@ -56,18 +56,46 @@ def deserialize_directories(directories):
     }
 
 
-def pandoc(page, output, template, filters, title=None, site_title=None,
-           include_after=()):
+def pandoc(page, output, template, filters, stylesheets, include_after=(),
+           variables=None, metadata=None):
     cmd = (
         'pandoc', '-s', page, '-o', output, '--template', template,
         *chain(*(('--lua-filter', f) for f in filters)),
+        *chain(*(('--css', s) for s in stylesheets)),
         *chain(*(('--include-after-body', f) for f in include_after))
     )
 
-    if title is not None:
-        cmd += ('-M', f'title={title}')
-    if site_title is not None:
-        cmd += ('-T', site_title)
+    if variables is not None:
+        cmd += tuple(chain(
+            *(('-V', f'{k}={v}') for k, v in variables.items())
+        ))
+    if metadata is not None:
+        cmd += tuple(chain(
+            *(('-M', f'{k}={v}') for k, v in metadata.items())
+        ))
 
     environ['LUA_PATH'] = '.cache/?.lua;;'
     run(cmd, check=True)
+
+
+def generate_crumbs(target):
+    parts = ('(top)', *target.parts)
+
+    if parts[-1] == 'index':
+        *crumbs, current = parts[:-1]
+    else:
+        crumbs = parts[:-1]
+        current, _ = path.splitext(parts[-1])
+
+    crumbs_li = (
+        '<li><a href="{link}">{crumb}</a></li>'.format(
+            link=(path.relpath(path.join(*crumbs[1:i], 'index.html'),
+                               start=target.parent)),
+            crumb=crumb
+        )
+        for i, crumb in enumerate(crumbs, start=1)
+    )
+
+    current_li = f'<li aria-current="page">{current}</li>'
+
+    return '\n'.join((*crumbs_li, current_li))