precinct

Unleash the detectives

npm install precinct

Uses the appropriate detective to find the dependencies of a file or its AST.

Supports:

JavaScript modules: AMD, CommonJS, and ES6
TypeScript
CSS Preprocessors: Sass, Scss, Stylus, and Less
CSS (PostCSS)

Usage

const fs = require('fs');
const precinct = require('precinct');

const content = fs.readFileSync('myFile.js', 'utf8');

// Pass in a file's content or an AST
const deps = precinct(content);

You may pass options (to individual detectives) based on the module type via an optional second object argument detective(content, options), for example:

Example call:

precinct(content, {
  amd: {
    skipLazyLoaded: true
  },
  type: 'amd'
});

The supported module type prefixes are: amd, commonjs, css, es6, less, sass, scss, stylus, ts, tsx, vue.

Current options:

amd.skipLazyLoaded: tells the AMD detective to omit lazy-loaded dependencies (i.e., inner requires).
es6.mixedImports: allows for all dependencies to be fetched from a file that contains both CJS and ES6 imports.
- Note: This will work for any file format that contains an ES6 import.
css.url: tells the CSS detective to include url() references to images, fonts, etc.

Finding non-JavaScript (ex: Sass and Stylus) dependencies:

const fs = require('fs');
const content = fs.readFileSync('styles.scss', 'utf8');

const sassDeps = precinct(content, { type: 'sass' });
const stylusDeps = precinct(content, { type: 'stylus' });

Or, if you just want to pass in a filepath and get the dependencies:

const { paperwork } = require('precinct');

const deps = paperwork('myFile.js');
const deps2 = paperwork('styles.scss');

`precinct.paperwork(filename, options)`

Supported options:

includeCore: (default: true) set to false to exclude core Node.js dependencies from the list of dependencies.
fileSystem: (default: undefined) set to an alternative fs implementation that will be used to read the file path.
You may also pass detective-specific configuration like you would to precinct(content, options).

CLI

Assumes a global install precinct with npm install -g precinct.

precinct [options] path/to/file

Run precinct --help to see all options.

License

MIT

Current Tags

12.1.1 ... latest (2 years ago)

precinct

Usage

precinct.paperwork(filename, options)

CLI

License

Current Tags

72 Versions

`precinct.paperwork(filename, options)`