[meta] add npmignore

Author: ljharb

.gitignore

@@ -5,3 +5,5 @@ npm-debug.log
 npm-shrinkwrap.json
 package-lock.json
 yarn.lock
+
+.npmignore

.npmignore

@@ -1 +1,15 @@
-tests/
+# Rules from: /Users/ljharb/Dropbox/git/browserify/sha.js.git/.gitignore
+node_modules
+npm-debug.log
+
+# Only apps should have lockfiles
+npm-shrinkwrap.json
+package-lock.json
+yarn.lock
+
+.npmignore
+
+
+# npmignore - autogenerated
+.github/workflows
+.github

package.json

@@ -18,11 +18,13 @@
     "encoding": "^0.1.13",
     "eslint": "=8.8.0",
     "hash-test-vectors": "^1.3.2",
+    "npmignore": "^0.3.1",
     "tape": "^5.9.0",
     "typedarray": "^0.0.7"
   },
   "bin": "./bin.js",
   "scripts": {
+    "prepack": "npmignore --auto --commentLines=autogenerated",
     "lint": "eslint --ext=js,mjs .",
     "pretest": "npm run lint",
     "test": "npm run tests-only",
@@ -43,5 +45,11 @@
     "commitLimit": false,
     "backfillLimit": false,
     "hideCredit": true
+  },
+  "publishConfig": {
+    "ignore": [
+      ".github/workflows",
+      ".github"
+    ]
   }
 }