consolidate environment variable parsing

lib/config/constants.ts

@@ -5,3 +5,8 @@ export const NOTES_DIR = "notes";
 
 // normalize the timestamp saved when building/deploying (see next.config.js) and fall back to right now:
 export const RELEASE_DATE = new Date(process.env.RELEASE_DATE || Date.now()).toISOString();
+
+// detect if running locally via `next dev` (phase is checked in next.config.js)
+export const IS_DEV_SERVER = process.env.IS_DEV_SERVER === "true";
+
+export const BUILD_ENV = process.env.VERCEL_ENV || process.env.NEXT_PUBLIC_VERCEL_ENV || process.env.NODE_ENV;

lib/helpers/compile-note.ts

@@ -1,6 +1,7 @@
 import { serialize } from "next-mdx-remote/serialize";
 import { minify } from "uglify-js";
 import { getNoteData } from "./parse-notes";
+import { IS_DEV_SERVER } from "../config/constants";
 
 // remark/rehype markdown plugins
 import remarkGfm from "remark-gfm";
@@ -34,18 +35,17 @@ export const compileNote = async (slug: string): Promise<NoteWithSource> => {
     },
   });
 
-  // HACK: next-mdx-remote v4 doesn't (yet?) minify compiled JSX output, see:
+  // TODO: next-mdx-remote v4 doesn't (yet?) minify compiled JSX output, see:
   // https://github.com/hashicorp/next-mdx-remote/pull/211#issuecomment-1013658514
   // ...so for now, let's do it manually (and conservatively) with uglify-js when building for production.
-  const compiledSource =
-    process.env.IS_DEV_SERVER !== "true"
-      ? minify(source.compiledSource, {
-          toplevel: true,
-          parse: {
-            bare_returns: true,
-          },
-        }).code
-      : source.compiledSource;
+  const compiledSource = IS_DEV_SERVER
+    ? source.compiledSource
+    : minify(source.compiledSource, {
+        toplevel: true,
+        parse: {
+          bare_returns: true,
+        },
+      }).code;
 
   return {
     frontMatter,

lib/helpers/prisma.ts

@@ -1,4 +1,5 @@
 import { PrismaClient } from "@prisma/client";
+import { IS_DEV_SERVER } from "../config/constants";
 
 // PrismaClient is attached to the `global` object in development to prevent
 // exhausting your database connection limit.
@@ -18,4 +19,4 @@ export const prisma =
     log: ["query"],
   });
 
-if (process.env.IS_DEV_SERVER === "true") global.prisma = prisma;
+if (IS_DEV_SERVER) global.prisma = prisma;

lib/helpers/sentry.ts

@@ -1,11 +1,12 @@
 import * as Sentry from "@sentry/node";
 import "@sentry/tracing";
+import { BUILD_ENV } from "../config/constants";
 
 const IsomorphicSentry = () => {
   // https://docs.sentry.io/platforms/node/configuration/options/
   Sentry.init({
     dsn: process.env.SENTRY_DSN || process.env.NEXT_PUBLIC_SENTRY_DSN || "",
-    environment: process.env.NODE_ENV || process.env.VERCEL_ENV || process.env.NEXT_PUBLIC_VERCEL_ENV || "",
+    environment: BUILD_ENV,
     tracesSampleRate: 1.0,
   });