Thanks, Eric
I took a hard look into my config.py but did not find anything similar to
what you describe here, like an env change.
I did manage to pinpoint the issue to Sphinx 1.8.1: With 1.8.0, a second
consecutive build does nothing, as it should, while on 1.8.1 it reads and
writes all the file.
Tzach
On Wednesday, August 7, 2019 at 10:27:59 PM UTC+3, Eric Larson wrote:
>
> It says "config changed", which means that Sphinx believes that something
> in your `conf.py` file has changed. There are a few ways this can happen.
>
> The first is that you actually changed some value in `conf.py`, but it
> sounds like this is not it.
>
> The next is that something in your `conf.py` that ends up in the env
> config does not have a stable `repr`. For example, in sphinx-gallery for a
> while we had things where people could pass in functions, like in `conf.py`
> they could pass a callable like (simplified):
>
> sphinx_gallery_conf = {
> 'something': lambda x: x * 2,
> }
>
> And this ended up in the env config. However, functions in general
> (lambdas included) do not have stable `repr`s, so Sphinx would detect a
> `conf.py` change despite the file not actually changing, because the `repr`
> of the `lambda` would contain a random memory address each run. Hence the
> warning
> we added in sphinx-gallery here
> <https://sphinx-gallery.github.io/configuration.html#sorting-gallery-subsections>
> .
>
> Then in numpydoc Sphinx extension we had a problem (that I introduced!)
> where we updated the config vars during the run to include some reasonable
> defaults. Sphinx stores/pickles the values at the *end* of the run, but on
> subsequent runs checks the values at the *beginning* of the run to see if
> they have changed to decide if the config has changed, so our modification
> in the middle caused a full rebuild to happen every time. This was fixed in
> numpydoc by not modifying the env config values that were there at the
> start of the run.
>
> There might be other ways, too, but these are the "gotcha"s I've hit.
>
> For what it's worth, on the branch from this PR the config var that
> actually causes the problem should actually be reported, you could give it
> a shot:
>
> https://github.com/sphinx-doc/sphinx/pull/6419#issuecomment-503299555
>
> You can probably install with some variant of:
>
> pip install "https://api.github.com/repos/larsoner/sphinx/zipball/config";
>
>
> HTH,
> Eric
>
>
>
>
> On Wed, Aug 7, 2019 at 3:16 PM Tzach Livyatan <[email protected]
> <javascript:>> wrote:
>
>> Hi all
>> As the subject says, sphinx-build started to update all files, on every
>> run. I suspect it started when I moved to from Sphinx 1.6 to 1.8, but I'm
>> not sure
>> Any idea?
>>
>> Thanks
>> Tzach
>>
>> Example output below
>>
>>
>> $ make preview
>> bin/sphinx-build -b dirhtml -d _build/doctrees . _build/dirhtml
>> Running Sphinx v1.8.5
>> loading pickled environment... done
>> building [mo]: targets for 0 po files that are out of date
>> building [dirhtml]: targets for 6 source files that are out of date
>> updating environment: [config changed] 413 added, 1 changed, 0 removed
>> reading sources... [100%] using-scylla/workload-prioritization
>>
>>
>> looking for now-outdated files... none found
>> pickling environment... done
>> checking consistency... done
>> preparing documents... done
>> writing output... [100%]
>>
>>
>> generating indices... genindex
>> writing additional pages... search
>> copying images... [100%]
>>
>> copying static files... done
>> copying extra files... done
>> dumping search index in English (code: en) ... done
>> dumping object inventory... done
>> build succeeded.
>>
>>
>>
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