diff-commits with lodash

diff-commits.js

var _ = require("lodash");
var nodegit = require("nodegit");
var path = require("path");

// This code examines the diffs between a particular commit and all of its
// parents. Since this commit is not a merge, it only has one parent. This is
// similar to doing `git show`.

nodegit.Repository.open(path.resolve(__dirname, "./"))
.then(function(repo) {
  return repo.getCommit("59164d9202f12ab8293bbaaff1e9ccb48a422c84");
})
.then(function(commit) {

  console.log("commit " + commit.sha());
  console.log("Author:", commit.author().name() +
    " <" + commit.author().email() + ">");
  console.log("Date:", commit.date());
  console.log("\n    " + commit.message());

  console.log(_.first([1,2,3,4]));

  return commit.getDiff();
})
.done(function( _.first( diffList ) ) {

  console.log(_.first( diffList) );

  diffList.forEach(function(diff) {
    diff.patches().forEach(function(patch) {
      console.log("diff", patch.oldFile().path(), patch.newFile().path());
      patch.hunks().forEach(function(hunk) {
        console.log(hunk.header().trim());
        hunk.lines().forEach(function(line) {
          console.log(String.fromCharCode(line.origin()) +
            line.content().trim());
        });
      });
    });
  });
});