ng-lib-utils is helpful when developing angular library, it provides common routines:

1. uglifying the library code
2. copy readme.md file from the root folder to the transpiled code folder
3. bumping the version
4. publish the package

uglifying the library code

when you build your library, usually to the 'dist' folder, that code is not uglified. uglifying the code means shortening variable/method names.

ng-lib-utils uses another package, ngx-uglifier, to uglify the code. in order to get a meaningful uglification, your library code needs to be written to support it, please follow the instructions on ngx-uglifier for that.

copy readme.md file from the root folder to the transpiled code folder

Usually packages are uploaded to repository site (e.g. npmjs.com) and to a source control site (e.g. github.com). The readme.md file needs to be the same in both sites. When you enable this option then the readme.md file from the root folder will be copied to the folder of the transpiled code, overriding the existing one.

bumping the version

The package version should be bumped every time you publish your package. This package enables you to bump the version, it does so only for the minor version. If you enable the option then the following will happen:

• the version is extracted from the package.json in the root folder
• the minor version is advanced in one
• the package.json file is updated
• the package.json file in the transpiled folder is updated with the bumped version

note that if you bump the version then make sure to publish your library as well, otherwise the version in the package.json will be unnecessarily bumped.

publish the package

if you enable this option then your library will be published.

Installation

npm install -D ng-lib-utils

Use

create a script in your root folder.

const NgLibUtils = require('ng-lib-utils');

const config = { projectName: 'my-lib' };
const ngLibUtils = new NgLibUtils.NgLibUtils(config);
ngLibUtils.init().then();

Run the script from the command line with arguments to enable the different options. For example, if the script name is lib-utils.js then the line below enables all 4 options:

node ./lib-utils --uglify --copy-readme --bump-version --publish

After running this line:

• your code will be uglified
• the readme.md file will be copied
• the version number in package.json will be bumped
• your library will be published

config object interface

The config object has the interface of NgxUglifierConfig and is described at ngx-uglifier.