Allow recipes to specify overrides for conversion options

src/calibre/manual/news_recipe.rst

@@ -54,6 +54,8 @@ Customizing e-book download
 
 .. automember:: BasicNewsRecipe.timefmt
 
+.. automember:: basicNewsRecipe.conversion_options
+
 .. automember:: BasicNewsRecipe.feeds
 
 .. automember:: BasicNewsRecipe.no_stylesheets

src/calibre/web/feeds/input.py

@@ -57,6 +57,8 @@ class RecipeInput(InputFormatPlugin):
 
         ro = recipe(opts, log, self.report_progress)
         ro.download()
+        for key, val in recipe.conversion_options.items():
+            setattr(opts, key, val)
 
         opts.output_profile.flow_size = 0
 

src/calibre/web/feeds/news.py

@@ -156,13 +156,16 @@ class BasicNewsRecipe(Recipe):
     #: :attr:`BasicNewsRecipe.filter_regexps` should be defined.
     filter_regexps        = []
 
-    #: List of options to pass to html2lrf, to customize generation of LRF ebooks.
+    #: Recipe specific options to control the conversion of the downloaded
-    html2lrf_options      = []
+    #: content into an e-book. These will override any user or plugin specified
-
+    #: values, so only use if absolutely necessary. For example:
-    #: Options to pass to html2epub to customize generation of EPUB ebooks.
+    #: conversion_options = {
-    html2epub_options     = ''
+    #:   'base_font_size' : 16,
-    #: Options to pass to oeb2mobi to customize generation of MOBI ebooks.
+    #:   'tags' : 'mytag1,mytag2',
-    oeb2mobi_options     = ''
+    #:   'title' : 'My Title',
+    #:   'linearize_tables' : True,
+    #: }
+    conversion_options = {}
 
     #: List of tags to be removed. Specified tags are removed from downloaded HTML.
     #: A tag is specified as a dictionary of the form::

src/calibre/web/feeds/recipes/recipe_barrons.py

@@ -22,7 +22,7 @@ class Barrons(BasicNewsRecipe):
         use_embedded_content   = False
         no_stylesheets = False
         match_regexps = ['http://online.barrons.com/.*?html\?mod=.*?|file:.*']
-        html2lrf_options = [('--ignore-tables'),('--base-font-size=10')]
+        conversion_options = {'linearize_tables': True}
         ##delay = 1
 
         ## Don't grab articles more than 7 days old

src/calibre/web/feeds/recipes/recipe_winsupersite.py

@@ -13,8 +13,7 @@ class Winsupersite(BasicNewsRecipe):
     no_stylesheets        = True
     use_embedded_content  = False
     remove_javascript     = True
-    html2lrf_options = ['--ignore-tables']
+    conversion_options = {'linearize_tables' : True}
-    html2epub_options = 'linearize_tables = True'
     remove_tags_before = dict(name='h1')
     preprocess_regexps = [
    (re.compile(r'<p>--Paul Thurrott.*</body>', re.DOTALL|re.IGNORECASE),