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proto v0.29 - Better environment support

website/blog/2024-01-23_proto-v0.29.mdx

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In this release, we focused heavily on environment interoperability.

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New environment aware configuration

We've made a small but useful improvement to .prototools, environment aware files! When the PROTO_ENV environment variable is set, proto will look for an additional .prototools.{env} file and merge it with the base configuration.

This is useful for certain deploy scenarios where you need different versions of tools, environment variables, or settings!

toml
node = "21.0.0"
toml
node = "20.0.0"

New [env] and [tools.*.env] settings

We're also introducing 2 new settings to the .prototools file, [env] and [tools.*.env], both of which configure environment variables that'll be applied when the tool is executed. This is useful for defining directory-level and tool-specific variables.

toml
[env]
DEBUG = "*"

[tools.node.env]
NODE_ENV = "production"

View the configuration documentation for more information on how these work!

Other changes

View the official release for a full list of changes.

  • Updated proto tool info to display aliases and environment variables.
  • Updated WASM logs to be shown alongside proto's --log output (under the extism::pdk namespace).