Configuration is an arrangement of functional units according to their nature, number, and chief characteristics.

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29
votes
8answers
10k views

Should a development machine be inside a VM? [closed]

This post by Rob Conery (note the slug) says that development environment should be run inside a virtual machine. I see what he's saying and tend to agree, but still feel a little uneasy. Now that ...
24
votes
8answers
6k views

Is a single config object a bad idea?

In most of my applications, I have a singleton or static "config" object, in charge of reading various settings from disk. Almost all classes use it, for various purposes. Essentially it's just a hash ...
17
votes
5answers
7k views

Configuration data: single-row table vs. name-value-pair table

Let's say you write an application that can be configured by the user. For storing this "configuration data" into a database, two patterns are commonly used. The single-row table CompanyName | ...
13
votes
3answers
3k views

Should I use a config file or database for storing business rules?

I have recently been reading The Pragmatic Programmer which states that: Details mess up our pristine code—especially if they change frequently. Every time we have to go in and change the code to ...
11
votes
3answers
600 views

What is Configuration Management?

In all projects that I have been involved with that have had input from an outside consultant the question has been asked about what sort of Configuration Management we were using. In none of these ...
9
votes
7answers
545 views

Bogarting the Data Access Layer

Situation: The dba is an offsite contractor who keeps the entire DAL code checked out in TFS. It would be nice as the front end developer to be able to add columns, and tweak procs and whatnot, ...
9
votes
6answers
2k views

When to use Constants vs. Config Files to maintain Configuration

I often fight with myself on whether to put certain keys in my web.config or in a Constants.cs class or something like this. For example if I wanted to store application specific keys for whatever ...
9
votes
3answers
2k views

User Configuration of a Shell Script. Best practices?

I am writing a shell script with a few variables that should be configured by the user. There will be an installer for downloading and configuring the script, possibly by asking a series of question. ...
8
votes
9answers
2k views

Should I pass an object into a constructor, or instantiate in class?

Consider these two examples: Passing an object to a constructor class ExampleA { private $config; public function __construct($config) { $this->config = $config; } } $config = new ...
7
votes
2answers
482 views

What is best practice to handle whitespaces when letting the user edit the configuration, the name=value pairs?

For instance, you let the user define the notorious path variable. How do you interpret apppath = C:\Program Files\App? This looks like a programming language adopted practice to ignore the white ...
7
votes
7answers
1k views

Is using something other than XML advisable for my configuration file?

I have a small tool I'm designing which would require a configuration file of some sort. The configuration file in my case is really more of a database, but it needs to be lightweight, and if needed ...
7
votes
4answers
2k views

Why don't public web applications use ini files for configuration

Almost every public CMS out there uses a .php configuration file for the database settings and so on. For example WordPress automatically creates a .php config file when you install it. Why don't ...
7
votes
5answers
2k views

How to decide between storage formats and what are example use cases for some of them?

We have different ways to store program data (save files in games, employee databases, program configuration etc.): Plain text (think .ini and .conf) XML Databases (MySQL, SQLite...) .zip and ...
7
votes
4answers
957 views

Managing large number of app.config files

We have many windows services and web apps which all rely on a lot of common settings. Currently we use just appSettings as needed and they are referenced by key. Some of the settings are app ...
6
votes
7answers
201 views

How to log configuration or code behaviour changes in non-disruptive way [closed]

We've probably all been in the situation where you'd like to alert your team members to some change ("I changed X, so now it's running every hour instead of every day"). But the change is non-urgent, ...
5
votes
4answers
1k views

Is using SVN for development and CM a bad practice?

I have a bit of experience with SVN as a pure programmer/developer. Within my company, however, we use SVN as our Configuration Management (CM) tool. I thought using SVN for development at the same ...
5
votes
2answers
268 views

In the context of semantic versioning, does a change in the default configuration warrant a new major version?

My module is enabled by default (i.e. when you add the module). There's also a configuration you can optionally use, which supports an enabled="true|false" setting. This way the module can be disabled ...
5
votes
2answers
430 views

Where to store global enterprise properties?

I'm faced with a crowd of java applications, which need different global enterprise wide properties for operation, for example: hostname of the central RDBMS, hostname and location of the central ...
4
votes
6answers
255 views

Company sends debug versions of software to clients

Hey, I'm a Junior Programmer working at a company. I just found out that they've been releasing a debug build of their product to clients for the past four years because the release version is broken ...
4
votes
2answers
132 views

How much configurability to give to users regarding concurrency?

This question is a narrowing-down of these related questions: How much effort should we spend to programming for multiple cores? Concurrency: How do you approach the design and debug the ...
4
votes
1answer
563 views

LGPL, .lib, .dll, and linking

I am trying to build a project which uses an unmodified copy of libconfig (http://www.hyperrealm.com/libconfig/). libconfig is LGPL, but I don't want to open source any of my code. By my ...
4
votes
2answers
790 views

Web services and business rules engines

We have a web service that takes in input different types of messages. The function of the webservice is to merely write in a database the content of the messages. There is about one table (with ...
3
votes
6answers
1k views

PHP: A config file in .ini or .php format?

I'm working on a huge CMS system, and I asked myself what configuration format I should use. There are two common formats for configuration files. The first one is an INI file, containg all the ...
3
votes
3answers
157 views

How to best encapsulate features in code and enabling/disabling them at runtime?

I would like to be able to abstract each feature developed by the team in a way that it can be enabled or disabled at runtime by using a distributed shared configuration system. Features are small and ...
3
votes
4answers
300 views

Using configuration to determine whether to handle exception or bubble it up

On a side project I'm working on I came up with a way of handling exceptions that's adjustable by configuration. So a try/catch block might look like this: try { fileHelper.MoveFile(file, ...
3
votes
2answers
681 views

Where Should I Put Configuration Files?

I'm creating a project that I want to be able to distribute across platforms. I'm writing in Java and AWT which already gives me a pretty large range of devices, but I'm mostly interested in Windows ...
3
votes
3answers
336 views

in C++, how to call an 'init' routine as a class is loaded?

I have a program that loads a bunch of "addons" (different meters that measure and display system values). The "addons" have "grown" over time and the code of what addons to "activate", and how many ...
3
votes
3answers
5k views

Configuration file that can be modified by user in C#

I want to create a configuration file (text file preferred) that can be modified by user. A windows service will read from that file and behave accordingly. Can you recommend a file format for this ...
3
votes
2answers
116 views

How best to version control massive configuration for an application?

Apologies if this doesn't make sense, English is not my first language. I'm working on an application where workflow is split into 'rules' that are defined on several pages of an Excel spreadsheet, a ...
3
votes
1answer
77 views

Designing configuration for subobjects

I have the following situation: I have a class (let's call it Main) encapsulating a complex process. This class in turn orchestrates a sequence of subalgorithms (AlgoA, AlgoB), each one represented by ...
3
votes
5answers
897 views

Config Class/Struct: Pattern or Anti-Pattern? Alternatives?

If you add new configuration options to a program, it can often have tons of ripple effects in terms of getting the options to where they need to be acted upon. There are three basic ways to deal ...
3
votes
1answer
48 views

(HTML) Form structure storage

In the context of a single-purpose website/application (for instance, based on Symfony2), I wish to have a set of forms fillable by users which then will be sent out as a formatted email (with the ...
2
votes
5answers
451 views

Is it plausible to use a filesystem-based configuration format rather than an INI file?

After having had endless issues with INI-style configuration files and parsing them correctly (let along getting binary data right), a crazy idea crossed my mind recently: What if an INI file like # ...
2
votes
1answer
119 views

Should I represent physical accessories of a system as classes in software?

I am redesigning a system comprised of a data-acquisition unit and a lot of different sensors (voltage sensor, angle sensor, pressure sensor, etc.). In the software domain model, there is a base ...
2
votes
2answers
156 views

What values in an application should be configurable?

What values in an application should be configurable, or otherwise not hard coded? Does this differ based on application type (batch vs UI) and are there any published standards or guidance on this ...
2
votes
4answers
257 views

What is the “architecture” that provides functionality to application-level URI interfaces, like chrome:// and Firefox's about:config, etc?

According to Wikipedia, about is an internal URI scheme (also known as a "URL scheme" or, erroneously, "protocol") in various web browsers to display certain built-in functions. It is not an ...
2
votes
2answers
322 views

How to separate development process and configuration management aspects of SVN?

I am looking into an alternative for the combined utilities of SVN, as both a development tool and configuration management tool. Instead, I would like to investigate the approach of having a ...
2
votes
2answers
324 views

Where to place configuration files sources

I am developing a C# windows service application, which have different configuration files for development, for production system, for test system, like: Dev.config Test.config Prod.config Now we ...
2
votes
2answers
221 views

Should program behavior be modified using a config file or environmental variables?

I'm referring to *nix command line applications primarily, where you want to permanently modify the behavior from defaults. Environmental variables are easily understood and implemented, usually ...
2
votes
5answers
193 views

How many different configurations are used for software tests? [closed]

This article shows that for Android apps, software developers use between 30 and 50 different devices for compatibility tests. I tried to find information about tests of applications on "classic" ...
2
votes
3answers
132 views

What is the preferred way to store application configurations?

Most of the time, I store development application config in root directory of the project, like this: app |-- config.json But that doesn't seem to be the best approach, since this config ends up ...
2
votes
1answer
195 views

Moving our web application from a windows development environment to linux environment seamlessly

I am trying to develop a web application on a windows machine using apache wicket, java, jquery etc. Apache wicket comes with an embedded jetty server. I am using eclipse as the IDE. The application ...
2
votes
2answers
105 views

Constants vs public properties for configuration

My application has a few high level configuration options such as directories which will be used for various things, database connection information and a few other settings which are required for the ...
2
votes
3answers
220 views

File system layout for multiple build targets

I am seeking some ideas for how to build and install software with some parameters. These including target OS, target platform CPU details, debugging variant, etc. Some parts of the install are ...
2
votes
3answers
281 views

How to deal with Windows .NET configuration files

We use the normal app.config file for the configuration of the application. Although it works for now it has some pretty significant drawbacks: Upgrading an application with a modified app.config is ...
2
votes
2answers
302 views

What is the benefit of passing a delegate to the constructor instead of just having the client code create and pass the ParserSettings?

When answering a question on Stack Overflow, the library appeared to have a weird way to specify configuration, through an Action passed to the constructor: public Parser(Action<ParserSettings> ...
2
votes
1answer
97 views

Which approach would be better for persisting these overridable configuration keys and values? A simple key-value store, or a graph database?

I'm creating a system where there are config keys and values. So for example: config.key = 10 Is an example of a configuration key and a value. These keys can also have overrides based on ...
2
votes
0answers
121 views

Directory access from PHP script [closed]

Introduction I'm creating an Android app for webpage that runs on Joomla 1.5. Yes I know that it's an old version etc. but it's not my site and I can't do anything about it. So basically I'm creating ...
2
votes
0answers
204 views

Caching Strategy: WCF Buffer pooling and size

I am currently trying to understand the best configuration for caching. I am using Azure In-Role caching (currently Colocated, but Dedicated at a later point) in a Web Api 2 application in .NET ...
1
vote
3answers
1k views

Best practice for configuration files in a website

I am creating something similar to a Content Management System, that can be downloaded and used by everyone that needs it. I've been working in web-development for a couple of years (mainly as a ...