feat(plugin/runner): Support pluginEnvVars

[CPunisher]

Description:

Currently, WasiEnvBuilder clones a lot to pass environment variables to Wasm. I think it should get environment variables from the host dynamically. Any plan to support it?

Originally posted by @kdy1 in #9668

I think this is possible, we can manually add envs to WasiEnvBuilder by add_env. So I finsh a rough implementation. More suggestions are welcome.

.swcrc

{ "jsc": { "experimental": { "plugins": [["./my_first_plugin.wasm", {}]], "pluginEnvVars": ["BUILD_REPOSITORY_NAME"] } } }

plugin.rs

#[plugin_transform] pub fn process_transform(program: Program, _metadata: TransformPluginProgramMetadata) -> Program { for env in std::env::vars() { println!("{}: {}", env.0, env.1); } program }

Related issue (if exists):

closes #9668

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[codspeed-hq]

CodSpeed Performance Report

Merging #10318 will not alter performance

_{Comparing CPunisher:04-06-feat/plugin-env-var (6be63a0) with main (ddbf3e1)}

Summary

✅ 152 untouched benchmarks

[kdy1]

I think it would give optimal API (no lifetime) without lesser allocations