fix(conf): lazy load cosmiconfig's TypeScriptLoader

lingui · Feb 3, 2023 · 956d652 · 956d652
1 parent a8c110d
commit 956d652
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Showing 2 changed files with 49 additions and 13 deletions.
diff --git a/packages/conf/package.json b/packages/conf/package.json
@@ -34,5 +34,17 @@
   ],
   "devDependencies": {
     "ts-node": "^10.9.1"
+  },
+  "peerDependencies": {
+    "ts-node": ">=10",
+    "typescript": ">=4"
+  },
+  "peerDependenciesMeta": {
+    "ts-node": {
+      "optional": true
+    },
+    "typescript": {
+      "optional": true
+    }
   }
 }
diff --git a/packages/conf/src/index.ts b/packages/conf/src/index.ts
@@ -2,9 +2,8 @@ import type { GeneratorOptions } from "@babel/core"
 import path from "path"
 import fs from "fs"
 import chalk from "chalk"
-import { cosmiconfigSync } from "cosmiconfig"
+import { cosmiconfigSync, type LoaderSync } from "cosmiconfig"
 import { multipleValidOptions, validate } from "jest-validate"
-import { TypeScriptLoader } from "cosmiconfig-typescript-loader";
 
 export type CatalogFormat = "lingui" | "minimal" | "po" | "csv"
 
@@ -85,7 +84,7 @@ export const defaultConfig: LinguiConfig = {
     minified: true,
     jsescOption: {
       minimal: true,
-    }
+    },
   },
   extractBabelOptions: { plugins: [], presets: [] },
   fallbackLocales: {},
@@ -97,13 +96,26 @@ export const defaultConfig: LinguiConfig = {
   rootDir: ".",
   runtimeConfigModule: ["@lingui/core", "i18n"],
   sourceLocale: "",
-  service: { name: "", apiKey: "" }
+  service: { name: "", apiKey: "" },
 }
 
 function configExists(path) {
   return path && fs.existsSync(path)
 }
 
+function TypeScriptLoader(): LoaderSync {
+  let loaderInstance: LoaderSync
+  return (filepath, content) => {
+    if (!loaderInstance) {
+      const { TypeScriptLoader } =
+        require("cosmiconfig-typescript-loader") as typeof import("cosmiconfig-typescript-loader")
+      loaderInstance = TypeScriptLoader()
+    }
+
+    return loaderInstance(filepath, content)
+  }
+}
+
 export function getConfig({
   cwd,
   configPath,
@@ -166,12 +178,17 @@ const exampleConfig = {
   extractors: multipleValidOptions(
     [],
     ["babel"],
-    [{
-      match: (fileName: string) => false,
-      extract: (filename: string, targetDir: string, options?: any) => {}
-    } as ExtractorType]
+    [
+      {
+        match: (fileName: string) => false,
+        extract: (filename: string, targetDir: string, options?: any) => {},
+      } as ExtractorType,
+    ]
+  ),
+  runtimeConfigModule: multipleValidOptions(
+    { i18n: ["@lingui/core", "i18n"], Trans: ["@lingui/react", "Trans"] },
+    ["@lingui/core", "i18n"]
   ),
-  runtimeConfigModule: multipleValidOptions({i18n: ["@lingui/core", "i18n"], Trans: ["@lingui/react", "Trans"]}, ["@lingui/core", "i18n"]),
   fallbackLocales: multipleValidOptions(
     {},
     { "en-US": "en" },
@@ -184,10 +201,15 @@ const exampleConfig = {
     rootMode: "rootmode",
     plugins: ["plugin"],
     presets: ["preset"],
-    targets: multipleValidOptions({}, '> 0.5%', ['> 0.5%', 'not dead'], undefined),
+    targets: multipleValidOptions(
+      {},
+      "> 0.5%",
+      ["> 0.5%", "not dead"],
+      undefined
+    ),
     assumptions: multipleValidOptions({}, undefined),
     browserslistConfigFile: multipleValidOptions(true, undefined),
-    browserslistEnv: multipleValidOptions('.browserslistrc', undefined),
+    browserslistEnv: multipleValidOptions(".browserslistrc", undefined),
   },
 }
 
@@ -575,5 +597,7 @@ export function catalogMigration(
   return newConfig
 }
 
-const pipe = (...functions: Array<Function>) => (args: any): any =>
-  functions.reduce((arg, fn) => fn(arg), args)
+const pipe =
+  (...functions: Array<Function>) =>
+  (args: any): any =>
+    functions.reduce((arg, fn) => fn(arg), args)