Image customization: add include() function #3148
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$(error ...) already adds a `.` to the end of error messages.
Error messages generated by Lua usually start with a lowercase letter. Let's make our own messages match.
Add a simple way to include image customization Lua snippets. Can be used to split long files, to include the same options multiple times in different conditional branches, or even to pass values back to the including file using return. Relative paths are interpreted relative to the site root (where image-customization.lua is located). Relative includes would become confusing when subdirectories are involved (as they are still interpreted relative to the site root, and proper tracking of current directory for each include seems fairly complex for a very niche use case), so we simply reject this case for now; this way, we can implement this however we want in the future if deemed necessary, without a breaking change.
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3. topic: docs
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@neocturne Would you mind implementing a sample implementation for the example-site? From the documentation one could assume it works similar to sourcing a shell-script. I think an example is the best way of demonstrating a best-practice use. The implementation itself looks good 👍 |
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Makes sense, I wanted to add more examples to the image customization docs anyways. |
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Shall we wait for these to arrive? I think the PR itself is fine as-is. I'd just wait for a backport to v2023.2 for docs. |
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I think there is no hurry regarding this PR, and I can work on the doc examples in the next days. |
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2. status: waiting-on-author
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Add a simple way to include image customization Lua snippets.
Can be used to split long files, to include the same options multiple
times in different conditional branches, or even to pass values back to
the including file using return.
Relative paths are interpreted relative to the site root (where
image-customization.lua is located). Relative includes would become
confusing when subdirectories are involved (as they are still interpreted
relative to the site root, and proper tracking of current directory for
each include seems fairly complex for a very niche use case), so we simply
reject this case for now; this way, we can implement this however we
want in the future if deemed necessary, without a breaking change.
Suggested by @T-X