Core logic for converting a directory containing dependencies into a Binder-compatible Docker image

In Binder, the binder-build module is responsible for fetching repository contents and handing them off to binder-build-core, which will then use one of a set of supported configuration configuration files in the directory to construct a Docker image (an executable environment).

binder-build-core will search for the following files, in descending order of priority (only one will be used during the build process):

1. Dockerfile
2. requirements.txt
3. environment.yml

The first one it finds will be passed into a dependency handler for conversion into Dockerfile commands. The list of available dependency handlers and configuration file types can be found in the dependencies directory

npm install binder-build-core

var Builder = require('binder-build-core')
var buildOpts = { imageName: 'test', logger: logger }
var builder = new Builder(buildOpts)
builder.build(dirName, function (err, imageSource) {
  ...
})