git-branch-to-json/src/index.js

This package converts the output of `git branch` into a sensible JS object.

'use babel'

const {exec} = require(`child_process`);
const S = require(`string`)

exports.branch = function (path) {
  return new Promise(function (resolve, reject) {
    exec(`git branch -avv`, {cwd: path}, (err, stdout, stderr) => {
      object = []
      if (stdout) {
        rows = S(stdout).lines()
        // Define regular expression
        re = /(\*)? ([a-zA-Z0-9\-]+(\/[a-zA-Z0-9\-]*)*)\s+([a-z0-9]{8})?\s+(\[.*\])?\s+(.*)$/
        i = 0
        for (row of rows) {
          i++
          processed = {}
          captures = row.match(re)
          if (captures) {
            if (captures[1])
              processed.active = true
            else
              processed.active = false

            if (captures[2])
              processed.name = captures[2]
            else
              throw error

            if (captures[3])
              processed.shortName = S(captures[3]).chompLeft('/').s
            else
              processed.shortName = processed.name

            if (captures[4])
              processed.commit = captures[4]
            else
              processed.commit = null

            if (captures[5])
              processed.remote = captures[5]
            else
              processed.remote = null

            if (captures[6])
              processed.message = captures[6]
            else
              processed.message = null

            if (processed.message.match(/[a-z0-9]{8}/)) {
              processed.commit = processed.message.slice(0,8)
              processed.message = processed.message.slice(9)
            }
          }
          if (processed.name)
            object.push(processed)
        }
        resolve(object);
      }
      else
        reject(err);
    })
  });
}