feature(macro): hash based id for js macro

packages/macro/package.json

@@ -34,8 +34,7 @@
   "dependencies": {
     "@babel/runtime": "^7.20.13",
     "@babel/types": "^7.20.7",
-    "@lingui/conf": "3.17.1",
-    "ramda": "^0.27.1"
+    "@lingui/conf": "3.17.1"
   },
   "peerDependencies": {
     "@lingui/core": "^3.13.0",

packages/macro/src/generateMessageId.test.ts

@@ -0,0 +1,24 @@
+import { generateMessageId } from "./generateMessageId"
+
+describe("generateMessageId", () => {
+  it("Should generate an id for a message", () => {
+    expect(generateMessageId("my message")).toMatchInlineSnapshot(`vQhkQx`)
+  })
+
+  it("Should generate different id when context is provided", () => {
+    const withContext = generateMessageId("my message", "custom context")
+    expect(withContext).toMatchInlineSnapshot(`gGUeZH`)
+
+    expect(withContext != generateMessageId("my message")).toBeTruthy()
+  })
+
+  it("Message + context should not clash with message with suffix or prefix", () => {
+    const context = "custom context"
+    const withContext = generateMessageId("my message", context)
+    const withSuffix = generateMessageId("my message" + context)
+    const withPrefix = generateMessageId(context, "my message")
+
+    expect(withContext != withSuffix).toBeTruthy()
+    expect(withContext != withPrefix).toBeTruthy()
+  })
+})

packages/macro/src/generateMessageId.ts

@@ -0,0 +1,11 @@
+import crypto from "crypto"
+
+const UNIT_SEPARATOR = "\u001F"
+
+export function generateMessageId(msg: string, context = "") {
+  return crypto
+    .createHash("sha256")
+    .update(msg + UNIT_SEPARATOR + context)
+    .digest("base64")
+    .slice(0, 6)
+}