ggit/src/getOneLineLog.js

Local promise-returning git command wrappers

var exec = require('./exec');

function parsePrettyLog(data) {
  var lines = data.split('\n');
  lines = lines.filter(function (line) {
    return !!line;
  });
  var splitLines = lines.map(function (line) {
    // should be id space log message
    var firstSpace = line.indexOf(' ');
    return {
      id: line.substr(0, firstSpace),
      message: line.substr(firstSpace).trim()
    };
  });
  return splitLines;
}

// returns a promise
function getLog(opts) {
  opts = opts || {};

  var cmd = 'git log --pretty=oneline';
  if (opts.n > 0) {
    cmd += ' -n ' + opts.n;
  }
  if (opts.remote && opts.branch) {
    cmd += ' ' + opts.remote + '/' + opts.branch + '..' + opts.branch;
  }
  return exec(cmd).then(parsePrettyLog);
}

module.exports = getLog;