🔥 replace .npmignore with files field in package.json

.npmignore re-exclusion after negation didn't work with yarn pack,
causing spec files to be included in published packages.

Author: BenoitZugmeyer

packages/core/.npmignore

@@ -6,6 +6,13 @@
   "module": "esm/index.js",
   "types": "cjs/index.d.ts",
   "sideEffects": false,
+  "files": [
+    "cjs",
+    "esm",
+    "src",
+    "!src/**/*.spec.ts",
+    "!src/**/*.specHelper.ts"
+  ],
   "scripts": {
     "build": "node ../../scripts/build/build-package.ts --modules"
   },

packages/core/package.json

@@ -5,6 +5,14 @@
   "main": "cjs/entries/main.js",
   "module": "esm/entries/main.js",
   "types": "cjs/entries/main.d.ts",
+  "files": [
+    "bundle/**/*.js",
+    "cjs",
+    "esm",
+    "src",
+    "!src/**/*.spec.ts",
+    "!src/**/*.specHelper.ts"
+  ],
   "scripts": {
     "build": "node ../../scripts/build/build-package.ts --modules --bundle datadog-logs.js",
     "build:bundle": "node ../../scripts/build/build-package.ts --bundle datadog-logs.js"

packages/logs/.npmignore

@@ -5,6 +5,13 @@
   "main": "cjs/index.js",
   "module": "esm/index.js",
   "types": "cjs/index.d.ts",
+  "files": [
+    "cjs",
+    "esm",
+    "src",
+    "!src/**/*.spec.ts",
+    "!src/**/*.specHelper.ts"
+  ],
   "scripts": {
     "build": "node ../../scripts/build/build-package.ts --modules"
   },

packages/logs/package.json

@@ -5,6 +5,15 @@
   "main": "cjs/entries/main.js",
   "module": "esm/entries/main.js",
   "types": "cjs/entries/main.d.ts",
+  "files": [
+    "cjs",
+    "esm",
+    "src",
+    "react-router-v6",
+    "react-router-v7",
+    "!src/**/*.spec.ts",
+    "!src/**/*.specHelper.ts"
+  ],
   "scripts": {
     "build": "node ../../scripts/build/build-package.ts --modules",
     "prepack": "npm run build"

packages/rum-core/.npmignore

@@ -5,6 +5,14 @@
   "main": "cjs/entries/main.js",
   "module": "esm/entries/main.js",
   "types": "cjs/entries/main.d.ts",
+  "files": [
+    "bundle/**/*.js",
+    "cjs",
+    "esm",
+    "src",
+    "!src/**/*.spec.ts",
+    "!src/**/*.specHelper.ts"
+  ],
   "scripts": {
     "build": "node ../../scripts/build/build-package.ts --modules --bundle datadog-rum-slim.js",
     "build:bundle": "node ../../scripts/build/build-package.ts --bundle datadog-rum-slim.js"