Merge pull request #1050 from getpelican/content-written-signal

Add a content_written signal

docs/plugins.rst

@@ -84,6 +84,7 @@ page_generate_context           page_generator, metadata
 page_generator_init             page_generator                  invoked in the PagesGenerator.__init__
 page_generator_finalized        page_generator                  invoked at the end of PagesGenerator.generate_context
 content_object_init             content_object                  invoked at the end of Content.__init__ (see note below)
+content_written                 path, context                   invoked each time a content file is written.
 =============================   ============================   ===========================================================================
 
 The list is currently small, so don't hesitate to add signals and make a pull

pelican/signals.py

@@ -37,3 +37,6 @@ static_generator_preread = signal('static_generator_preread')
 static_generator_context = signal('static_generator_context')
 
 content_object_init = signal('content_object_init')
+
+# Writers signals
+content_written = signal('content_written')

pelican/writers.py

@@ -11,8 +11,10 @@ if not six.PY3:
 
 from feedgenerator import Atom1Feed, Rss201rev2Feed
 from jinja2 import Markup
+
 from pelican.paginator import Paginator
 from pelican.utils import get_relative_path, path_to_url, set_date_tzinfo
+from pelican import signals
 
 logger = logging.getLogger(__name__)
 
@@ -151,10 +153,15 @@ class Writer(object):
                 os.makedirs(os.path.dirname(path))
             except Exception:
                 pass
+
             with self._open_w(path, 'utf-8', override=override) as f:
                 f.write(output)
             logger.info('writing {}'.format(path))
 
+            # Send a signal to say we're writing a file with some specific
+            # local context.
+            signals.content_written.send(path, context=localcontext)
+
         localcontext = context.copy()
         if relative_urls:
             relative_url = path_to_url(get_relative_path(name))