var nodegit = require('../');
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, '../.git'))
.then(function(repo) {
  return repo.getCommit('59b20b8d5c6ff8d09518454d4dd8b7b30f095ab5');
})
.then(function(commit) {
  console.log('commit ' + commit.sha());
  console.log('Author:', commit.author().name() + ' ');
  console.log('Date:', commit.date());
  console.log('\n    ' + commit.message());

  return commit.getDiff();
})
.done(function(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());
        });
      });
    });
  });
});