Allow no cover image in epub

[librarian.git] / librarian / formats / pdf / __init__.py

diff --git a/librarian/formats/pdf/__init__.py b/librarian/formats/pdf/__init__.py
index e8e936b..a994008 100644 (file)
--- a/librarian/formats/pdf/__init__.py
+++ b/librarian/formats/pdf/__init__.py
@@ -11,7 +11,7 @@ from lxml import etree
 from urllib import urlretrieve
 from StringIO import StringIO
 from Texml.processor import process
-from librarian import DCNS, XMLNamespace
+from librarian import DCNS, XMLNamespace, BuildError
 from librarian.formats import Format
 from librarian.output import OutputFile
 from librarian.renderers import Register, TreeRenderer
@@ -52,7 +52,8 @@ class PdfFormat(Format):
 
     def add_file(self, ctx, filename, url=None, path=None, image=False):
         from subprocess import call
-        assert url or path
+        if not url and not path:
+            raise BuildError('No URL or path for image')
         save_as = os.path.join(ctx.workdir, filename)
         if path is not None:
             ext = path.rsplit('.', 1)[-1]
@@ -72,6 +73,8 @@ class PdfFormat(Format):
             if url.startswith('/'):
                 url = 'http://milpeer.eu' + url
 
+            if '.' not in url:
+                raise BuildError('Linked file without extension: %s' % url)
             ext = url.rsplit('.', 1)[-1]
             if image:
                 urlretrieve(url, save_as + '_.' + ext)
@@ -332,8 +335,21 @@ class ImgRenderer(CmdRenderer):
 PdfFormat.renderers.register(core.Div, 'img', ImgRenderer('insertimage'))
 
 
+class VideoRenderer(CmdRenderer):
+    def render(self, element, ctx):
+        root = super(VideoRenderer, self).render(element, ctx)
+        url = 'https://www.youtube.com/watch?v=%s' % element.attrib.get('videoid')
+        link = texml_cmd('href', url, url)
+        root[0][0].text = None
+        root[0][0].append(link)
+        return root
+
+PdfFormat.renderers.register(core.Div, 'video', VideoRenderer('par'))
+
+
 PdfFormat.renderers.register(core.Div, 'defined', CmdRenderer('textbf'))
 PdfFormat.renderers.register(core.Div, 'item', CmdRenderer('item'))
+PdfFormat.renderers.register(core.Span, 'item', CmdRenderer('item'))
 PdfFormat.renderers.register(core.Div, 'list', EnvRenderer('itemize'))
 PdfFormat.renderers.register(core.Div, 'list.enum', EnvRenderer('enumerate'))