Tools that supplements the dependency analysis tool madge. So far, there is one tool which allows you to collapse dependencies.
Last updated 3 years ago by marco-eckstein .
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Tools that supplement the JavaScript module dependency analysis tool madge.

So far, there is only one tool: collapse. It allows you to collapse module dependencies, i.e., to view dependencies between the folders in which the models are contained. You can thus get a more coarse-grained overview of your project structure.



Madge analyzes your dependencies and lets you output them in various format, e.g. JSON: madge --json modules-base-dir > dependencies.json

An example output may be:

  "a/aa1": ["b/bb/bbb1"],
  "a/aa2": ["b/bb/bbb1", "c/cc1"],
  "b/bb/bbb1": ["b/bb/bbb2"],
  "b/bb/bbb2": ["c/cc1"],
  "b/bb/bbb3": ["d/dd1"],
  "c/cc1": [],
  "d/dd1": [],

If your project is large, your dependencies (especially when viewed as an image) may become overwhelming. Use dependency-analysis collapse < dependencies.json to collapse them by a level:

  "a": ["b/bb", "c"],
  "b/bb": ["c", "d"],
  "c": [],
  "d": [],

You can also collapse by multiple levels: dependency-analysis collapse --levels 2 < dependencies.json


  "a/aa/aaa": ["b/bb/bbb"],
  "b/bb/bbb": [],


  "a": ["b"],
  "b": [],

Note that the minimum level of nesting in your input file must be equal to or larger than the levels you are collapsing!

Interaction with the madge command:

madge --json modules-base-dir | dependency-analysis collapse > dependencies-collapsed.json


import { collapse } from "@marco-eckstein/dependency-analysis";

const dependencies = JSON.parse(fs.readFileSync("deps.json", "utf8"));
const levels = 2;
const dependenciesCollapsed = collapse(dependencies, levels);


No global modules other than npm are necessary.

  • Run npm install once after checking out.
  • Then, run either npm test for a single full build cycle (clean, compile, lint, test), or npm start for running the full cycle initially and then watch for file changes which will trigger appropriate parts of the build cycle (compile, lint, test). The watch mode is not bulletproof: It works for file updates, but you may get problems if you rename or delete files.
  • Publish with npm publish --access public. This will run the full build cycle before publishing.

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  • 0.1.0                                ...           latest (3 years ago)

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