I've been looking at options for persistence when using RxSwift and Realm was looking attractive due to it's relative simplicity and the availability of some extensions in the community repo.
Unfortunately although I can get Realm and RxSwift working nicely in Xcode 8b6, things of seriously wrong as soon as you try to connect them together as RxRealm does not currently compile (there seems to be more going wrong with it than the Grand Renaming as far as I can tell).
Is there a workaround that is reliable? I can't believe for a moment that there isn't, I just can't find a resource at present. I was thinking of converting the Result object into an Set or Array and making this Observable but. I'm not sure if the contents (Realm Objects) are going to be handled correctly. Knowing my luck, I suspect not!
There's a Pull Request towards the RxRealm project adding Swift 3 support: https://github.com/RxSwiftCommunity/RxRealm/pull/26
I suggest you try using that.
More generally, targeting an Xcode beta will by definition give you a less stable software ecosystem, since no one is submitting apps with that and it's a moving target (often with weekly breaking changes). So if you want stable software, use stable tools. Realm and RxRealm both support Swift 2.2 quite well, so using that will give you the best experience.
Which is the best tool for postgresql testing ?
I am newly placed in a company where my role is this. I want to know some info regarding tools.
I don't know if you are still looking for a testing suite. I am facing the same problem as you were and found a couple of testing suites on Wikipedia.
Looks like only pgTAP is still actively developed. To me it seems to have a steep learning curve but I think in the long run it will pay to use such a tool for automated testing.
Here is a new one on GitHub called Plpgunit.
https://github.com/mixerp/plpgunit/
Plpgunit does not require any additional dependencies and is ready to
be used on your PostgreSQL Server instance.
To install this framework, you will have to run the SQL script file. So, it seems easy to give a try.
I'm about to build my first serious Lisp-based project: a web application that will need to scale to tens of thousands of users (not concurrently - probably hundreds, at most, concurrently).
The stack I'm intending to use looks like:
Weblocks web framework with a BerkeleyDB back-end
Elephant object database
Steel Bank Common Lisp (SBCL)
Ubuntu Server (10.04 LTS)
I have two areas of concern re. this stack:
Is Elephant dead? The latest release is getting on for three years old ... which could just mean that it's stable I guess :-)
As a relative newcomer to Lisp (but with significant RoR & ASP.NET experience) are any of those technologies likely to melt my head?
Feedback on my choices, & suggestions of alternatives, would be appreciated.
Elephant is effectively unmaintained. It does not work on current SBCL and the patch to fix the issue has not been applied. It's possible that someone else might pick up the development but it's not clear in the short term if that will happen. Some people use Rucksack as an object store, and bknr-datastore is also interesting.
Ubuntu is fine, but don't use Ubuntu Lisp packages; it's better to get SBCL from www.sbcl.org and libraries via Quicklisp. Because of that, almost any Linux will work equally well. I use Debian for my Lisp-powered website.
Weblocks is a continuations-based web framework - it is a very old approach, it should not be used for developing modern web-applications.
If you don't mind using PostgreSQL for persistence, you should check out Postmodern.
I have tried Weblocks, and i have made a simple web app also. But when i want to write a more complicated app, i found Weblocks is too limited. It lead user to write more widgets, but i suppose widgets cannot solve all web UI problem. I even read 80% source codes of Weblocks. But .... finally i decided to change another Web framework. What i really need, i suppose, is a url routing library like Ruby on Rails, Restas is fine. I tried it, and i wrote a blog library which support themes like WordPress using Restas. Restas is easier than Weblocks, but more powerful in my opinion.
I work in Visual Studio working on sites mostly myself and occasionally I start on new features for a site and bam a bug pops up on the live site and now I am in the middle of changes and can't post a fix to the bug until everything I started to change is complete.
So I am looking for a nice an simple way to work with this type of situation - any suggestions?
Are you asking for a recommendation of a source control system? SourceGear Vault is free for single users.
I am big fan of subversion. There also plugins for VS to work with subversion repository.
http://subversion.tigris.org/
http://ankhsvn.open.collab.net/
I am in a similar situation and I use Perforce. It is free for up to two users and integrates well with Visual Studio.
Subversion is well supported and has tools for most any environment. It's also mostly straightforward to use, so you should be able to get up and running quickly.
If you need to work on a lot of separate features and bugs at the same time, you might try Mercurial instead. The tooling support is a lot less mature but I find the distributed design to do a better job of merging and facilitating work on separate issues concurrently.
But really, if you aren't using anything currently and aren't sure what your needs are, just choose one that has support in the IDE/tools you use. It will probably be Subversion.
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As recently as several years ago, the developers actually made the builds that went to clients. This was obviously a disaster for reasons too numerous to list.
Then when we started to learn the errors of our ways, we looked for a way to auto-build the entire application on a dedicated build machine. The culture at that time was very averse to bringing in outside tools, so we built our own autobuild system by writing a VB app.
This worked fine for a while, until the project's structure started to change, new projects were added, and we needed to build the application in different ways. Then then weaknesses of our hand-rolled autobuilder became apparent and, over time, increasingly onerous. This disease has progressed now to the point where QA (who owns our build process) can't even maintain the autobuilder because it requires more and more programming skill. Every time we add a project or change something in an existing project, it consumes more developer time just to make it work. There have been days when we were unable to produce a build because the system was broken.
I'm now in a position where I can change this process, and I'm looking to scrap the entire system and put something else in it's place. My goals are:
Have an autobuild system that can run with zero human interaction at a specific time every day. It should be able to gather all the source code, compile all the apps, create the setups, put the finished products on a network share, and possibly trigger the automated testing system to kick in (we use QTP).
The autobuild system should be flexible enough to easily adapt to changes in the project without rrequiring a major overhaul.
It should be simple enough so that QA can own the system and not require developer resources to make changes to how builds are made.
What are your experiences? Can you recommend an autobuild system? Should I have different goals?
I'm currently using CruiseControl integrated with Ant to control project builds. This allows flexibility of build schedules and means you can automate the entire build process fairly easily using Ant scripts. Also, during defect fixing periods you can have CruiseControl set up to watch for source control submissions instead of time periods and build when these occur. This allows developers very quick feedback on defect fixes.
I use FinalBuilder and FinalBuilder Server for nightly builds. It's a bit buggy at times, but if you think it through it's quite easy to create extensible projects that can build X project type, build it's database from change scripts and deploy it to a testing server.
It can also handle all kinds of wierd and wonderful things like ZIPing a nightly build and uploading it to an FTP or creating ISO images automatically.
Definitely look into MSBuild if you're on the Microsoft stack.
Joel is always going on and on about how great FinalBuilder is, so that might be worth a look as well.
We just migrated from a hand-rolled set of Perl scripts to a Buildbot setup. I found it because that's what Google's using for Chrome.
You can do nightlies, or it can integrate with source control to do an isolated test build whenever anybody does a checkin, or a variety of other things. It's also parallel; you can have more than one machine in the build farm, either for specialized duties or just to handle more load.
The entire system is written in Python, so it's platform-agnostic, which is important if you need to do builds on more than one platform. It can do anything you can do from the command line; we have it calling MSBuild for user-mode components, a DDK build for kernel-mode pieces, and running products for unit test builds.
Out of the box it supports most OSS source control tools, but if you're using TFS or something else you may need to modify the package that you install on the slave machines.
I think you are on the right track here.
Whoever looks after your automated build process needs to have a fundamental understanding of how your solution fits together. This doesn't necessarily mean knowing how to write code or architect solutions, but they will require a solid understanding of how the solution compiles, packages itself etc.
You might need to share responsibility for builds between people or teams to accomplish this. I'd say that a daily build is a "team responsibility".
I'd look at establishing a baseline build configuration which can be extended for "special use" builds (besides just building a release version), e.g. internationalized releases, fxCop/Quality Tools config, build + run Unit Tests, continuous integration builds, a build config to run on developer workstations, etc.
Instead, I'd aim to achieve the following:
Automatic versioning, signing etc
Ability to produce verbose output (logging) to help debug build breaks
On that point - it should handle errors properly, capture as much information and log it properly
Consistency - It should work the same way each time to produce repeatable outcomes
Run in a clean, limited access environment
Well commented/documented so that it can be understood by new staff, etc.
Option to generate release notes, compile metrics, produce reports (if this option is available)
Ability to deploy to multiple environments
Support different ways to obtain source code from source control, e.g. by changeset, label, date, etc
As for tool recommendations, I've used FinalBuilder, Visual Build Pro, MSBuild/Team Build, nAnt, CruiseControl and CIFactory plus and good old fashioned batch files.
Each has its pros and cons, I'm not going to make a recommendation except to say that the products with decent UI support were a little bit easier to work with, but at times were far less powerful. If you're working with VIsual Studio, MSBuild is very powerful, but has a somewhat steep learning curve.
As of tools delivered with MS Visual Studio you might want to use MSBuild. Additional Community toolsets for MSBuild will even give you the possibility to checkout code from Subversion and zip output.
We're using it successfully in our company. Projects consists of several solutions with 100+ subprojects. Works like a charm.
Visual Build Pro is nice, if your build machines are Windows. I think this would fill the requirement you have about QA owning the system. But don't get me wrong, it's pretty powerful.
We use CruiseControl.NET and UppercuT (which uses NAnt) to do this. UppercuT uses conventions for building so it makes it really easy for someone to get started by answering three questions (What is the solution named? What is the path to source control? What is your company's name?) and you are building.
http://code.google.com/p/uppercut/
Some good explanations here: UppercuT
We use the Hudson buildbot for for big Java web app building from ant build scripts. Hudson is pretty sweet for our purposes. It has a master/slave setup so builds can be done concurrently (on a timer or on-demand). Slave nodes can be any OS/hardware combo provided it has the needed build tools already on it and is on the network (and won't crash every 10 min).
Full web-based interface including live console output, change logs, artifacts from the build are available across the network including previous builds (if successful). Awesomesauce!