some cleanup

[librarian.git] / librarian / epub.py

diff --git a/librarian/epub.py b/librarian/epub.py
index a0d9742..c1e3f4e 100644 (file)
--- a/librarian/epub.py
+++ b/librarian/epub.py
@@ -7,41 +7,15 @@ from __future__ import with_statement
 
 import os
 import os.path
 
 import os
 import os.path

-import shutil
-import sys

 from copy import deepcopy
 from lxml import etree
 import zipfile
 
 from copy import deepcopy
 from lxml import etree
 import zipfile
 

-from librarian import XMLNamespace, RDFNS, DCNS, WLNS, XHTMLNS, NoDublinCore
-from librarian.parser import WLDocument
-
-#TODO: shouldn't be repeated here
-NCXNS = XMLNamespace("http://www.daisy.org/z3986/2005/ncx/")
-OPFNS = XMLNamespace("http://www.idpf.org/2007/opf")
-
-
-class DocProvider(object):
-    class DoesNotExist(Exception):
-        pass
-    
-    def by_slug(self, slug):
-        raise NotImplemented
-
-    def __getitem__(self, slug):
-        return self.by_slug(slug)
-
-    def by_uri(self, uri):
-        return self.by_slug(uri.rsplit('/', 1)[1])
-
-
-class DirDocProvider(DocProvider):
-    def __init__(self, dir):
-        self.dir = dir
-        self.files = {}
+import sys
+sys.path.append('..') # for running from working copy

 
 

-    def by_slug(self, slug):
-        return open(os.path.join(self.dir, '%s.xml' % slug))
+from librarian import XMLNamespace, RDFNS, DCNS, WLNS, NCXNS, OPFNS, NoDublinCore
+from librarian.dcparser import BookInfo

 
 
 def inner_xml(node):
 
 
 def inner_xml(node):


@@ -63,7 +37,6 @@ def set_inner_xml(node, text):
     <a>x<b>y</b>z</a>
     """
 
     <a>x<b>y</b>z</a>
     """
 

-    

     p = etree.fromstring('<x>%s</x>' % text)
     node.text = p.text
     node[:] = p[:]
     p = etree.fromstring('<x>%s</x>' % text)
     node.text = p.text
     node[:] = p[:]


@@ -103,12 +76,11 @@ def replace_characters(node):
     def replace_chars(text):
         if text is None:
             return None
     def replace_chars(text):
         if text is None:
             return None

-        return text.replace("&", "&amp;")\
-                   .replace("---", "&#8212;")\
-                   .replace("--", "&#8211;")\
-                   .replace(",,", "&#8222;")\
-                   .replace('"', "&#8221;")\
-                   .replace("'", "&#8217;")
+        return text.replace("---", u"\u2014")\
+                   .replace("--", u"\u2013")\
+                   .replace(",,", u"\u201E")\
+                   .replace('"', u"\u201D")\
+                   .replace("'", u"\u2019")

     if node.tag == 'extra':
         node.clear()
     else:
     if node.tag == 'extra':
         node.clear()
     else:


@@ -274,11 +246,12 @@ def transform_chunk(chunk_xml, chunk_no, annotations):
     return output_html, toc
 
 
     return output_html, toc
 
 

-def transform(provider, slug, output_file):
+def transform(provider, slug, output_file=None, output_dir=None):

     """ produces an epub
 
     provider is a DocProvider
     """ produces an epub
 
     provider is a DocProvider

-    output_file should be filelike object
+    either output_file (a file-like object) or output_dir (path to file/dir) should be specified
+    if output_dir is specified, file will be written to <output_dir>/<author>/<slug>.epub

     """
 
     def transform_file(input_xml, chunk_counter=1, first=True):
     """
 
     def transform_file(input_xml, chunk_counter=1, first=True):


@@ -329,6 +302,24 @@ def transform(provider, slug, output_file):
 
         return toc, chunk_counter
 
 
         return toc, chunk_counter
 

+    # read metadata from the first file
+    input_xml = etree.parse(provider[slug])
+    metadata = input_xml.find('.//'+RDFNS('Description'))
+    if metadata is None:
+        raise NoDublinCore('Document has no DublinCore - which is required.')
+    book_info = BookInfo.from_element(input_xml)
+    metadata = etree.ElementTree(metadata)
+
+    # if output to dir, create the file
+    if output_dir is not None:
+        author = unicode(book_info.author)
+        author_dir = os.path.join(output_dir, author)
+        try:
+            os.makedirs(author_dir)
+        except OSError:
+            pass
+        output_file = open(os.path.join(author_dir, '%s.epub' % slug), 'w')
+

 
     zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED)
 
 
     zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED)
 


@@ -346,12 +337,6 @@ def transform(provider, slug, output_file):
     for fname in 'style.css', 'logo_wolnelektury.png':
         zip.write(res(fname), os.path.join('OPS', fname))
 
     for fname in 'style.css', 'logo_wolnelektury.png':
         zip.write(res(fname), os.path.join('OPS', fname))
 

-    # metadata from first file
-    input_xml = etree.parse(provider[slug])
-    metadata = input_xml.find('.//'+RDFNS('Description'))
-    if metadata is None:
-        raise NoDublinCore('Document has no DublinCore - which is required.')
-    metadata = etree.ElementTree(metadata)

     opf = xslt(metadata, res('xsltContent.xsl'))
     manifest = opf.find('.//' + OPFNS('manifest'))
     spine = opf.find('.//' + OPFNS('spine'))
     opf = xslt(metadata, res('xsltContent.xsl'))
     manifest = opf.find('.//' + OPFNS('manifest'))
     spine = opf.find('.//' + OPFNS('spine'))


@@ -402,6 +387,8 @@ def transform(provider, slug, output_file):
 
 
 if __name__ == '__main__':
 
 
 if __name__ == '__main__':

+    from librarian import DirDocProvider
+

     if len(sys.argv) < 2:
         print >> sys.stderr, 'Usage: python epub.py <input file>'
         sys.exit(1)
     if len(sys.argv) < 2:
         print >> sys.stderr, 'Usage: python epub.py <input file>'
         sys.exit(1)


@@ -409,7 +396,6 @@ if __name__ == '__main__':
     main_input = sys.argv[1]
     basepath, ext = os.path.splitext(main_input)
     path, slug = os.path.realpath(basepath).rsplit('/', 1)
     main_input = sys.argv[1]
     basepath, ext = os.path.splitext(main_input)
     path, slug = os.path.realpath(basepath).rsplit('/', 1)

-    output = basepath + '.epub'

     provider = DirDocProvider(path)
     provider = DirDocProvider(path)

-    transform(provider, slug, open(output, 'w'))
+    transform(provider, slug, output_dir=path)