Add environment-aware createHash function to apollo-env (#1110)

Add environment awareness in order to use crypto/sha.js when appropriate

CHANGELOG.md

@@ -4,6 +4,8 @@
 
 - apollo
   - JSON flag for service:check output [#1079](https://github.com/apollographql/apollo-tooling/pull/1079)
+- apollo-env
+  - Add environment-aware createHash function to apollo-env [#1110](https://github.com/apollographql/apollo-tooling/pull/1110)
 
 ## `apollo@2.6.0`, `apollo-env@0.3.4`, `apollo-language-server@1.5.3`, `apollo-codegen-flow@0.32.9`, `apollo-codegen-scala@0.33.5`, `apollo-codegen-swift@0.32.9`, `apollo-codegen-typescript@0.32.10`, `apollo-graphql@0.1.2`
 

packages/apollo-env/package.json

@@ -21,6 +21,7 @@
   },
   "dependencies": {
     "core-js": "3.0.0-beta.13",
-    "node-fetch": "^2.2.0"
+    "node-fetch": "^2.2.0",
+    "sha.js": "^2.4.11"
   }
 }

packages/apollo-env/src/index.ts

@@ -2,3 +2,4 @@ import "./polyfills";
 
 export * from "./typescript-utility-types";
 export * from "../lib/fetch";
+export * from "./utils";

packages/apollo-env/src/utils/createHash.ts

@@ -0,0 +1,10 @@
+import { isNodeLike } from "./isNodeLike";
+
+export function createHash(kind: string): import("crypto").Hash {
+  if (isNodeLike) {
+    // Use module.require instead of just require to avoid bundling whatever
+    // crypto polyfills a non-Node bundler might fall back to.
+    return module.require("crypto").createHash(kind);
+  }
+  return require("sha.js")(kind);
+}

packages/apollo-env/src/utils/index.ts

@@ -0,0 +1,2 @@
+export * from "./createHash";
+export * from "./isNodeLike";

packages/apollo-env/src/utils/isNodeLike.ts

@@ -0,0 +1,6 @@
+export const isNodeLike =
+  typeof process === "object" &&
+  process &&
+  process.release &&
+  process.versions &&
+  typeof process.versions.node === "string";

packages/apollo-graphql/package.json

@@ -11,6 +11,7 @@
     "node": ">=6"
   },
   "dependencies": {
+    "apollo-env": "file:../apollo-env",
     "lodash.sortby": "^4.7.0"
   },
   "peerDependencies": {

packages/apollo-graphql/src/signature.ts

@@ -43,8 +43,8 @@
 // the server no longer needs to parse the signature or run its own signature
 // algorithm on it, and the details of the signature algorithm are now up to the
 // reporting agent.
-
 import { DocumentNode } from "graphql";
+import { createHash } from "apollo-env";
 import {
   printWithReducedWhitespace,
   dropUnusedDefinitions,