AttributeError: 'NoneType' object has no attribute 'read'

[Ryan J Ollos]

[[Include(source:)]] leads to an error:

2016-05-16 16:57:47,817 Trac[formatter] ERROR: Macro Include(source:) failed:
Traceback (most recent call last):
  File "/usr/local/virtualenv/1.0-stable/lib/python2.7/site-packages/trac/wiki/formatter.py", line 793, in _macro_formatter
    return macro.ensure_inline(macro.process(args))
  File "/usr/local/virtualenv/1.0-stable/lib/python2.7/site-packages/trac/wiki/formatter.py", line 362, in process
    text = self.processor(text)
  File "/usr/local/virtualenv/1.0-stable/lib/python2.7/site-packages/trac/wiki/formatter.py", line 349, in _macro_processor
    text)
  File "/usr/local/virtualenv/1.0-stable/lib/python2.7/site-packages/includemacro/macros.py", line 121, in expand_macro
    dest_format)
  File "/usr/local/virtualenv/1.0-stable/lib/python2.7/site-packages/includemacro/macros.py", line 196, in _get_source
    out = node.get_content().read()
AttributeError: 'NoneType' object has no attribute 'read'

[Ryan J Ollos]

In 15552:

3.0.0dev: Avoid AttributeError when resource not specified

Fixes #12778.

[Ryan J Ollos]

In 17157:

TracIncludeMacro 3.2.0dev: Fix regression in r15552

The regression prevented specifying the mimetype
when rendering a file from the repository.

Closes #4004, Refs #12778.