feat: add support for Go functions (#2929)

* feat: add local functions proxy

* refactor: pass raw context to runtimes

* feat: add support for Go functions

* chore: fix linting errors

* chore: update shrinkwrap

* feat: use .exe extension for compiled binary on Windows

* feat: add check for Go installation

* chore: add pause call to test

* feat: add local functions proxy

* refactor: pass raw context to runtimes

* feat: add support for Go functions

* chore: fix linting errors

* feat: use .exe extension for compiled binary on Windows

* feat: add check for Go installation

* chore: add pause call to test

* chore: update shrinkwrap

* chore: update shrinkwrap

package.json

@@ -78,6 +78,7 @@
     "@netlify/build": "^16.1.0",
     "@netlify/config": "^13.0.0",
     "@netlify/framework-info": "^5.7.2",
+    "@netlify/local-functions-proxy": "^0.1.0",
     "@netlify/plugin-edge-handlers": "^1.11.22",
     "@netlify/plugins-list": "^2.19.3",
     "@netlify/routing-local-proxy": "^0.31.0",

src/lib/functions/local-proxy.js

@@ -0,0 +1,14 @@
+const { getBinaryPath: getFunctionsProxyPath } = require('@netlify/local-functions-proxy')
+const execa = require('execa')
+
+const runFunctionsProxy = ({ binaryPath, directory, name, requestData, timeout }) => {
+  const functionsProxyPath = getFunctionsProxyPath()
+
+  if (functionsProxyPath === null) {
+    throw new Error('Host machine does not support local functions proxy server')
+  }
+
+  return execa(functionsProxyPath, [JSON.stringify(requestData), binaryPath, directory, name, `${timeout}s`])
+}
+
+module.exports = { runFunctionsProxy }

src/lib/functions/registry.js

@@ -1,3 +1,5 @@
+const { env } = require('process')
+
 const chalk = require('chalk')
 
 const { NETLIFYDEVLOG, NETLIFYDEVERR } = require('../../utils/logo')
@@ -137,7 +139,9 @@ class FunctionsRegistry {
 
     await Promise.all(directories.map((path) => this.prepareDirectoryScan(path)))
 
-    const functions = await this.listFunctions(directories)
+    const functions = await this.listFunctions(directories, {
+      featureFlags: { buildGoSource: env.NETLIFY_EXPERIMENTAL_BUILD_GO_SOURCE === 'true' },
+    })
 
     // Before registering any functions, we look for any functions that were on
     // the previous list but are missing from the new one. We unregister them.