gittest.js

//var myrepo = null;
var nodegit = require("nodegit");
var fs = require('fs');

var changelogFolder = "changes";
var files = fs.readdirSync(changelogFolder);	

// Iterate over each change file
files.forEach( function(file, index) {
	console.log("Checking file ", file);
	var myrepo = null;
	nodegit.Repository.open(".")
	.then(repo => {
		myrepo = repo;
		return repo.getHeadCommit();
	})
	.then(headCommit => {
		//console.log("Found head", headCommit.sha());
	    return new Promise(resolve => {
	        var history = headCommit.history();
	        var commits = [];
	        //console.log("Creating promise", resolve);
	        history.on('commit', commit => commits.push(commit));
	        history.on('end', () => resolve(commits));
	        //history.on('commit', () => console.log("Blar"));
	        history.start();
	    });
	})
	.then(allCommits => {
		//console.log("Found commit", allCommits);
	    return Promise.all(allCommits.map(commit => {
	        return commit.getEntry("changes/" + file)
	        .then(entry => ({
	            commit: commit,
	            entry: entry
	        }), fail => null);
	    }));
	})
	.then(allCommits => allCommits.filter(e => e !== null))
	.then(allCommits => allCommits.sort((a, b) => b.commit.date() - a.commit.date()))
	.then(allCommits => {
		if (allCommits.length != 0) {
			var firstCommit = allCommits.pop().commit;
			console.log("Commit: " + firstCommit.sha());	

			nodegit.Tag.list(myrepo).then(tags => {
			    return Promise.all(tags.map(tag => {
					console.log("Tag" , tag);
					return nodegit.Reference.nameToId(myrepo, "refs/tags/" + tag);
			    }));
			}).then(oid => {
				console.log(oid[0].tostrS());
				return myrepo.getCommit(oid[2].tostrS());
			}).then(headCommit => {
				console.log("Found head ",headCommit);
			    return new Promise(resolve => {
			        var history = headCommit.history();
			        var commits = [];
			        //console.log("Creating promise", resolve);
			        history.on('commit', commit => commits.push(commit));
			        history.on('end', () => resolve(commits));
			        //history.on('commit', () => console.log("Blar"));
			        history.start();
			    });
			}) 
			.then(allCommits => allCommits.filter(e => e !== null))
			.then(allCommits => allCommits.filter(e => e.sha() === firstCommit.sha()))
			.then(allCommits => {
				//allCommits.map(function(e) {
				//	console.log("Commit: " + e.commit.sha());
				//	console.log("Entry: " + e.entry);
				//});
				console.log(allCommits.length);
				//var firstCommit = allCommits.pop();
				//console.log("Commit: " + firstCommit.sha());
				//console.log("Entry: " + firstCommit.entry);
				//console.log(allCommits.map(c => c.entry.isFile()));
			    // find first commit with entry
			    // allCommits[0] has .commit, .entry
			}).catch(err => console.error(err, err.stack));
		}
		//console.log("Entry: " + firstCommit.entry);
		//console.log(allCommits.map(c => c.entry.isFile()));
	    // find first commit with entry
	    // allCommits[0] has .commit, .entry
	}).catch(err => console.error(err, err.stack));
});