refactor: split flags

README.md

@@ -45,7 +45,7 @@ Available exports:
 - `provider`
 - `isColorSupported`
 
-You can read more about how each flag works from [./src/index.ts](./src/index.ts).
+You can read more about how each flag works from [./src/flags.ts](./src/flags.ts).
 
 List of well known providers can be found from [./src/providers.ts](./src/providers.ts).
 

src/_process.ts

@@ -0,0 +1,2 @@
+export const _process: typeof process =
+  typeof process === "undefined" ? ({} as typeof process) : process;

src/_utils.ts

@@ -0,0 +1,3 @@
+export function toBoolean(val) {
+  return val ? val !== "false" : false;
+}

src/flags.ts

@@ -0,0 +1,53 @@
+import { detectProvider, ProviderName } from "./providers";
+import { env, nodeENV } from "./env";
+import { toBoolean } from "./_utils";
+import { _process } from "./_process";
+
+const _providerInfo = detectProvider(env);
+
+/** Value of process.platform */
+export const platform = _process.platform;
+
+/** Current provider name */
+export const provider: ProviderName = _providerInfo.name;
+
+/** Detect if `CI` environment variable is set or a provider CI detected */
+export const isCI = toBoolean(env.CI) || _providerInfo.ci !== false;
+
+/** Detect if stdout.TTY is available */
+export const hasTTY = toBoolean(_process.stdout && _process.stdout.isTTY);
+
+/** Detect if global `window` object is available */
+export const hasWindow = typeof window !== "undefined";
+
+/** Detect if `DEBUG` environment variable is set */
+export const isDebug = toBoolean(env.DEBUG);
+
+/** Detect if `NODE_ENV` environment variable is `test` */
+export const isTest = nodeENV === "test" || toBoolean(env.TEST);
+
+/** Detect if `NODE_ENV` environment variable is `production` */
+export const isProduction = nodeENV === "production";
+
+/** Detect if `NODE_ENV` environment variable is `dev` or `development` */
+export const isDevelopment = nodeENV === "dev" || nodeENV === "development";
+
+/** Detect if MINIMAL environment variable is set, running in CI or test or TTY is unavailable */
+export const isMinimal = toBoolean(env.MINIMAL) || isCI || isTest || !hasTTY;
+
+/** Detect if process.platform is Windows */
+export const isWindows = /^win/i.test(platform);
+
+/** Detect if process.platform is Linux */
+export const isLinux = /^linux/i.test(platform);
+
+/** Detect if process.platform is macOS (darwin kernel) */
+export const isMacOS = /^darwin/i.test(platform);
+
+/** Color Support */
+export const isColorSupported =
+  !toBoolean(env.NO_COLOR) &&
+  (toBoolean(env.FORCE_COLOR) ||
+    (isWindows && !(env.TERM === "dumb")) ||
+    (hasTTY && env.TERM && !(env.TERM !== "dumb")) ||
+    isCI);

src/index.ts

@@ -1,63 +1,3 @@
-import { detectProvider, ProviderName } from "./providers";
-import { env, nodeENV } from "./env";
-export { env, nodeENV } from "./env";
-
-export type { ProviderName, ProviderInfo } from "./providers";
-
-const _process: typeof process =
-  typeof process === "undefined" ? ({} as typeof process) : process;
-const envShim = _process.env || ({} as typeof process.env);
-const providerInfo = detectProvider(envShim);
-
-/** Value of process.platform */
-export const platform = _process.platform;
-
-/** Current provider name */
-export const provider: ProviderName = providerInfo.name;
-
-/** Detect if `CI` environment variable is set or a provider CI detected */
-export const isCI = toBoolean(env.CI) || providerInfo.ci !== false;
-
-/** Detect if stdout.TTY is available */
-export const hasTTY = toBoolean(_process.stdout && _process.stdout.isTTY);
-
-/** Detect if global `window` object is available */
-export const hasWindow = typeof window !== "undefined";
-
-/** Detect if `DEBUG` environment variable is set */
-export const isDebug = toBoolean(env.DEBUG);
-
-/** Detect if `NODE_ENV` environment variable is `test` */
-export const isTest = nodeENV === "test" || toBoolean(env.TEST);
-
-/** Detect if `NODE_ENV` environment variable is `production` */
-export const isProduction = nodeENV === "production";
-
-/** Detect if `NODE_ENV` environment variable is `dev` or `development` */
-export const isDevelopment = nodeENV === "dev" || nodeENV === "development";
-
-/** Detect if MINIMAL environment variable is set, running in CI or test or TTY is unavailable */
-export const isMinimal = toBoolean(env.MINIMAL) || isCI || isTest || !hasTTY;
-
-/** Detect if process.platform is Windows */
-export const isWindows = /^win/i.test(platform);
-
-/** Detect if process.platform is Linux */
-export const isLinux = /^linux/i.test(platform);
-
-/** Detect if process.platform is macOS (darwin kernel) */
-export const isMacOS = /^darwin/i.test(platform);
-
-/** Color Support */
-export const isColorSupported =
-  !toBoolean(env.NO_COLOR) &&
-  (toBoolean(env.FORCE_COLOR) ||
-    (isWindows && !(env.TERM === "dumb")) ||
-    (hasTTY && env.TERM && !(env.TERM !== "dumb")) ||
-    isCI);
-
-// -- Utils --
-
-function toBoolean(val) {
-  return val ? val !== "false" : false;
-}
+export * from "./providers";
+export * from "./env";
+export * from "./flags";

test/index.test.ts

@@ -5,6 +5,7 @@ describe("std-env", () => {
   it("has expected exports", () => {
     expect(Object.keys(stdEnv)).toMatchInlineSnapshot(`
       [
+        "detectProvider",
         "env",
         "nodeENV",
         "platform",