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Add support for image/webp to mimetypes package #2003

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@aron aron commented Oct 18, 2024

This has only recently been introduced in Python 3.13.0 and is currently
inconsistently implemented across different platforms. Confusingly webp
is supported in local development on macOS but not when building the
docker image of a cog model. This is either because it's not defined
in the system mime.types file of the Linux image or because a dev
dependency is manually adding it. I've not done the work to fully
understand which.

This commit introduces a function called in the init script for the cog
package that patches the global mimetypes registry to understand the
.webp extension and image/webp mime type. This will be a no-op on
systems that already understand the type.

This fixes a bug whereby files with the .webp extension are uploaded
to the --upload-url with the incorrect application/octet-stream header.

This has only recently been introduced in Python 3.13.0 and is currently
inconsistently implemented across different platforms. Confusingly webp
is supported in local development on macOS but not when building the
docker image of a cog model. This is either because it's not defined
in the system mime.types file of the Linux image or because a dev
dependency is manually adding it. I've not done the work to fully
understand which.

This commit introduces a function called in the init script for the cog
package that patches the global mimetypes registry to understand the
.webp extension and image/webp mime type. This will be a no-op on
systems that already understand the type.

This fixes a bug whereby files with the .webp extension are uploaded
to the `--upload-url` with the incorrect application/octet-stream header.
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