git outgoing

git-outgoing.js

#!/usr/bin/env node

var execFile = require('child_process').execFile;
var log = console.log;
var exit = process.exit;


execFile('git', ['whatchanged', 'origin/master..'], function(err, stdout, stderr) {
  if (err) {
    log('ERROR: ' + stderr);
    exit(1);
  }

  var lines = stdout.split('\n');
  var types = {
    M: 'modified',
    A: 'added',
    D: 'deleted'
  };
  var lists = {};

  var state = 0;
  for (var i = 0; i < lines.length; i++) {
    var line = lines[i];
    switch (state) {
      case 0: // pre-description */
        if (!line.trim()) {
          state = 1;
          log('\ndescription:');
        } else {
          log(line);
        }
        break;
      case 1: // description
        if (!line.trim()) {
          state = 2;
          log();
        } else {
          log('\t' + line.trim());
        }
        break;
      case 2:
        if (line) {
          var m = line.match(/^:[0-9]+ +[0-9]+ +[a-z0-9]+\.\.\. +[a-z0-9]+\.\.\. +([A-Z])[\t ]+(.*)$/);
          if (m) {
            var type = types[m[1]];
            var file = m[2];
            if (!type) {
              log('ERROR: unknown type character \'' + m[1] +'\'');
              exit(2);
            }
            lists[type] = lists[type] || [];
            lists[type].push(file);
          } else {
            log('ERROR: unknown line format: ' + line);
            exit(3);
          }
        }
        break;
    }
  }
  if (state !== 2) {
    log('ERROR: did not find all expected sections');
    exit(4);
  }
  for (key in types) {
    var heading = types[key];
    var list = lists[heading];
    if (!list) continue;
    log(heading + ':');
    for (var k = 0; k < list.length; k++) {
      log('    ' + list[k]);
    }
    log();
  }
});

ZZ_output.txt

$ git outgoing
commit 6997d1f03b6ee3427a242970a53b6814b6252605
Author: Joshua M. Clulow <josh@sysmgr.org>
Date:   Tue Nov 29 10:20:35 2011 +1100

description:
        1815 sed -i "" no longer works

modified:
    usr/src/cmd/sed/main.c