[FEATURE] Make templates overridable

[linawolf]

When using the docker container locally
or in a custom pipeline.

[jaapio]

Suggested change

	RUN mkdir -p /project/custom-templates
	RUN mkdir -p /templates

[jaapio]

I would recommend to use a separate root path for the templates. Like /templates this prevents strange behavior in the order of volumes. In the order you wrote it it will work. Otherway around it does not. People might be unaware of that.

[kaystrobach]

I get the error, that cat is not defined in the container:

docker run --rm -it typo3-docs:local \                                                                                                                              
      cat /opt/guides/packages/typo3-docs-theme/resources/template/structure/layout.html.twig \
      > Documentation-TwigTemplates/structure/layout.html.twig

Result of the command

�[37;41m                                 �[39;49m
�[37;41m  Command "cat" is not defined.  �[39;49m
�[37;41m                                 �[39;49m

[kaystrobach]

What exactly does that mean:

• git-root/Documentation/resources/custom-templates/
• git-root/resources/custom-templates/

If it's the later, it would clutter the repository. If the first, atleast i tried and did not get it to work as expected.

with neither of the commands

docker run --rm   -v "${PWD}:/project"   -v "${PWD}/Documentation-TwigTemplates/:/project/custom-templates:ro"   -it typo3-docs:local   --progress --config=Documentation

docker run --rm   -v "${PWD}:/project"   -it typo3-docs:local   --progress --config=Documentation