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feat: add FASTIFY_AUTOLOAD_TYPESCRIPT environment variable #327

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merged 1 commit into from
Sep 14, 2023
Merged

feat: add FASTIFY_AUTOLOAD_TYPESCRIPT environment variable #327

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12 changes: 12 additions & 0 deletions README.md
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Expand Up @@ -292,6 +292,18 @@ Autoload can be customised using the following options:
// { country: 'be', language: 'nl' }
```

## Override Typescript detection per Environment variable

It is possible to override the automatic detection of a typescript capable runtime per `FASTIFY_AUTOLOAD_TYPESCRIPT` environment variable. If set to a truthy value Autoload will load `.ts` files, expecting that node has a typescript capable loader.

This is useful for cases, where you want to use Autoload for loading typescript files but detecting the typescript loader fails, because for example you are using a custom loader.

You can use it like this:

```sh
FASTIFY_AUTOLOAD_TYPESCRIPT=1 node --loader=my-custom-loader index.ts
```

## Plugin Configuration

Each plugin can be individually configured using the following module properties:
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4 changes: 3 additions & 1 deletion index.js
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Expand Up @@ -5,6 +5,7 @@ const url = require('node:url')
const { readdir } = require('node:fs').promises
const pkgUp = require('pkg-up')

const isFastifyAutoloadTypescriptOverride = !!process.env.FASTIFY_AUTOLOAD_TYPESCRIPT
const isTsNode = (Symbol.for('ts-node.register.instance') in process) || !!process.env.TS_NODE_DEV
const isBabelNode = (process?.execArgv || []).concat(process?.argv || []).some((arg) => arg.indexOf('babel-node') >= 0)

Expand All @@ -16,7 +17,8 @@ const isSWCNode = typeof process.env._ === 'string' && process.env._.includes('.
const isTsm = process._preload_modules && process._preload_modules.includes('tsm')
const isEsbuildRegister = process._preload_modules && process._preload_modules.includes('esbuild-register')
const isTsx = process._preload_modules && process._preload_modules.toString().includes('tsx')
const typescriptSupport = isTsNode || isVitestEnvironment || isBabelNode || isJestEnvironment || isSWCRegister || isSWCNodeRegister || isSWCNode || isTsm || isTsx || isEsbuildRegister
const typescriptSupport = isFastifyAutoloadTypescriptOverride || isTsNode || isVitestEnvironment || isBabelNode || isJestEnvironment || isSWCRegister || isSWCNodeRegister || isSWCNode || isTsm || isTsx || isEsbuildRegister

const forceESMEnvironment = isVitestEnvironment || false
const routeParamPattern = /\/_/ig
const routeMixedParamPattern = /__/g
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