bitbucket.gs

/** @param {string} id
 * @param {string} secret */
function BitBucket(id, secret){
	this.auth = AccessToken(id, secret);
	this.Commit = function(repo,branch,message,files){
		return Commit(repo,branch,message,files,this.auth.access_token);
	}
}

/** @param {string} id
 * @param {string} secret
 * @return {{access_token:string}} */
function AccessToken(id, secret){
	var resp = UrlFetchApp.fetch("https://bitbucket.org/site/oauth2/access_token", {
		method: "POST",
		payload: { grant_type: "client_credentials",scope: "repository:write" },
		headers: { Authorization: 'Basic ' + Utilities.base64Encode(id + ":" + secret) }
	});

	return JSON.parse(resp);
}

/** @param {{key:string,value:string}} files key:filename,value:stringContent */
function Commit(repo,branch,message,files,accessToken) {
	
	var resp = UrlFetchApp.fetch("https://bitbucket.org/api/1.0/repositories/" + repo + "/branches-tags", { headers: { Authorization: "Bearer " + accessToken } });
	
	var data = JSON.parse(resp);
	Logger.log(data);
	
	var head = null;
	for (var i in data.branches)
	{
		var item = data.branches[i];
		if (item.name == branch)
		{
			head = item.heads[0];
			break;
		}
	}
	
	if(!head)
		throw new Error("Cannot get head from " + repo + ":" + branch);
	
	var allFile = [];
	for (var fileName in files)
		allFile.push({ "path": fileName, "content": files[fileName] });
	
	var commitData = {
		"branch": branch,
		"files": allFile,
		"parents": [head],
		"message": message,
		"repository": { "full_name": repo },
		"timestamp": new Date().toString(),
		"transient": false
	};
	
	var resp = UrlFetchApp.fetch("https://bitbucket.org/!api/internal/repositories/" + repo + "/oecommits/", {
		method: "POST",
		contentType: "application/json",
		headers: { Authorization: "Bearer " + accessToken },
		payload: JSON.stringify(commitData)
	});
	
	Logger.log(resp);
}