Catch error wphen file doesn't exist and report generation of files.

lektor_tipue_search.py

@@ -3,6 +3,7 @@
 import json
 from collections import defaultdict
 
+from lektor.reporter import reporter
 from lektor.pluginsystem import Plugin
 from lektor.db import Page
 
@@ -53,14 +54,21 @@ def on_before_build(self, source, prog, **extra):
 
  self.tipue_search[source.alt].append(item)
 
+ @check_enabled
  def on_after_build_all(self, builder, **extra):
  for alt, pages in self.tipue_search.items():
  filename = os.path.join(builder.env.root_path, self.output_path,
  'tipue_search_{}.json'.format(alt))
 
- with open(filename, 'r') as f:
- contents = f.read()
+ try:
+ with open(filename, 'r') as f:
+ contents = f.read()
+ except IOError:
+ contents = ""
 
  if contents != json.dumps(pages):
  with open(filename, 'w') as f:
  f.write(json.dumps(pages))
+
+ reporter.report_generic('generated tipue search file{}'.format(
+ filename))