[docutils:bugs] Re: #459 Invalid circular inclusion warning when including multiple documents from a directive

> I'm not sure the `lines = f.read()` quite works because I don't think that puts it into a nice array of lines for parsing ...

The `lines = f.read()` in my small example is a stub.
The point is, that if you insist on `statemachine.insert_input()` to inject generated lines to the document while parsing it, either use the currently active source or a "fancy description" as second argument, e.g.

    def run(self):
        name = self.content[0]
        self.state_machine.insert_input(
            ['.. include:: %s' % name], 'mytrickydirective')
        return []
This works in 0.18 but I can't tell for 0.17.


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** [bugs:#459] Invalid circular inclusion warning when including multiple documents from a directive**

**Status:** pending-works-for-me
**Created:** Thu Oct 20, 2022 10:30 PM UTC by Ian Wienand
**Last Updated:** Wed Nov 02, 2022 10:46 AM UTC
**Owner:** nobody
**Attachments:**

- [circular-ref-bug.py](https://sourceforge.net/p/docutils/bugs/459/attachment/circular-ref-bug.py) (1.2 kB; text/x-python)


The recent sphinx release has found what I think is a problem in the circular-reference detection in docutils.

We have a situation where we build a page with a directive that automatically includes a file (readme from a sub-component).  In some cases, these readme's might then also include another file (e.g. similar components share a common file about their arguments, etc.).  So we have a include hierarchy like

~~~
 .. include:: ./component/README.rst
   .. include:: common.rst
.. include:: ./component2/README.rst
  .. include:: common.rst
~~~

Our directive works by reading the `README.rst` file and then using `self.state_machine.insert_input()`

Our build started failing due a `circular inclusion in "include" directive` which comes from the *second* inclusion of the `common.rst` above.  In this situation, I don't believe there is any circular inclusion -- we want the same content included twice; but it is not referencing itself.

I think it has something to do with `self.state.document.include_log` thinking that it has seen `common.rst` before.

I have isolated this down to the smallest example I can think of and attached that; it is also at https://paste.opendev.org/show/brTxHYllHebBIs1wHbfM/

When I run this I get

~~~
$ ./docutils-venv/bin/python3 ./recursive.py 
Write combined.rst
Write file1.rst
Write file2.rst
Write common.rst
file1.rst:1: (WARNING/2) circular inclusion in "include" directive:
file1.rst
> file1.rst
~~~



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