github-dependency-crawl

Crawl GitHub issues to build a dependency graph.

Usage

Let's see what this very repository's dependency tree looks like:

var crawl = require('github-dependency-crawl')
 
crawl('noffle/github-dependency-crawl', function (err, graph) {
  console.log(graph)
})

It'll look something like this:

{
  'noffle/github-dependency-crawl/2': [ 'noffle/github-dependency-crawl/3' ],
  'noffle/github-dependency-crawl/1': [ 'noffle/github-dependency-crawl/2', 'noffle/github-dependency-crawl/3' ],
  'noffle/github-dependency-crawl/3': [ 'noffle/ipget/18' ],
  'noffle/ipget/18': [ 'ipfs/ipget/24', 'ipfs/ipget/26', 'ipfs/ipget/20', 'ipfs/ipget/21' ],
  'ipfs/ipget/24': [],
  'ipfs/ipget/26': [],
  'ipfs/ipget/20': [],
  'ipfs/ipget/21': []
}

Where keys indicate issues in the graph, and each maps to a list of its dependencies.

API

var crawl = require('github-dependency-crawl')

crawl(opts, cb)

Asynchronously makes many GitHub API requests to crawl a given repository's dependency graph.

To simply get the dependency graph of a repo, opts can be a string of the form "org/repo" for a single repo, or "org" to crawl all issues of all repositories in an organization.

cb is of the form function (err, graph). graph contains an object of the form

{
  issueName: [ issueName ],
  issueName: [ issueName ],
  ...
}

where issueName is of the form org/repo/issue-num (e.g. noffle/latest-tweets/1).

Keys are entries in the dependency graph, and the issues it maps to are its dependencies.

For more flexible use, opts can be an object of the form

{
  repo: 'org/repo' || 'org',
  orgToRepos: function (orgName, cb) { ... },
  repoToGitHubIssues: function (repoName, cb) { ... },
  issueToGitHubIssues: function (issueName, cb) { ... },
  auth: {
    client_id: '...',
    client_secret: '...'
  }
}

repoName will be of the form org/repo and issueName of the form org/repo/issue-num.

auth provides the option to include GitHub API credentials, to be able to make a higher # requests / hour.

By default, the crawler will visit all pages of issues per-repo.

If not supplied, orgToRepos, repoToGitHubIssues and issueToGitHubIssues will default to the built-in functionality of querying the GitHub API. These functions are overwritable here so that the module can a) be easily unit tested, and b) you can crawl your own offline datasets by e.g. substituting github api requests for local filesystem reads.

Install

With npm installed, run

$ npm install github-dependency-crawl

License

ISC