skip publishing if package is flagged as private (sindresorhus#64)

* Don't attempt to npm publish if package flagged as private

* Missing semicolon

* Change to using load-json-file

* Use read-pkg-up to read package.json

* Fix lint error

* Document private packages in readme

* Use readPkgUp.sync

Author: unkillbob

index.js

@@ -1,16 +1,14 @@
 'use strict';
-const fs = require('fs');
 const semver = require('semver');
 const execa = require('execa');
 const del = require('del');
-const pify = require('pify');
 const Listr = require('listr');
 const split = require('split');
 require('any-observable/register/rxjs-all');
 const Observable = require('any-observable');
 const streamToObservable = require('stream-to-observable');
+const readPkgUp = require('read-pkg-up');
 
-const fsP = pify(fs);
 const VERSIONS = ['major', 'minor', 'patch', 'premajor', 'preminor', 'prepatch', 'prerelease'];
 
 const exec = (cmd, args) => {
@@ -116,7 +114,13 @@ module.exports = (input, opts) => {
 		},
 		{
 			title: 'Publishing package',
-			task: () => exec('npm', ['publish'].concat(opts.tag ? ['--tag', opts.tag] : []))
+			task: () => {
+				if (readPkgUp.sync().pkg.private) {
+					return 'Private package: publishing skipped.';
+				}
+
+				return exec('npm', ['publish'].concat(opts.tag ? ['--tag', opts.tag] : []));
+			}
 		},
 		{
 			title: 'Pushing tags',
@@ -125,6 +129,6 @@ module.exports = (input, opts) => {
 	]);
 
 	return tasks.run()
-		.then(() => fsP.readFile('package.json', 'utf8'))
-		.then(JSON.parse);
+		.then(() => readPkgUp())
+		.then(result => result.pkg);
 };

package.json

@@ -37,7 +37,7 @@
     "execa": "^0.4.0",
     "listr": "^0.4.3",
     "meow": "^3.7.0",
-    "pify": "^2.3.0",
+    "read-pkg-up": "^1.0.1",
     "rxjs": "^5.0.0-beta.9",
     "semver": "^5.1.0",
     "split": "^1.0.0",

private-packages.png

@@ -72,6 +72,14 @@ Set the [`sign-git-tag`](https://docs.npmjs.com/misc/config#sign-git-tag) npm co
 $ npm config set sign-git-tag true
 ```
 
+### Private packages
+
+You can use np for modules that aren't publicly published to npm (perhaps installed from a private git repo).
+
+Set `"private": true` in your `package.json` and the publish step will be skipped. All other steps
+including versioning and pushing tags will still be completed.
+
+<img src="private-packages.png" width="306">
 
 ## License