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

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32
votes
8answers
13k 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 ...
26
votes
8answers
8k 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 ...
21
votes
5answers
10k 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 | ...
17
votes
3answers
6k 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 ...
14
votes
6answers
3k 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 ...
11
votes
3answers
691 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 ...
10
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. ...
9
votes
7answers
549 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
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 ...
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 ...
8
votes
5answers
3k 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
2answers
571 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
2k 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
7answers
206 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, ...
7
votes
4answers
1k 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
4answers
2k 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 ...
6
votes
1answer
717 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 ...
5
votes
2answers
287 views

Should I have a separate XML settings file for my application?

I want to be able to add some objects to my application by simply adding a XML node to a config file. Should I put it in the app.config file or should I make a separate XML config file? A node would ...
5
votes
2answers
280 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
758 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 ...
5
votes
1answer
186 views

How to load environment configuration

In Java the typical way of storing configuration is by using property files. So I have several such files, one for each environment type (dev, test, prod, ...). This configuration is needed in ...
4
votes
6answers
264 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
4answers
312 views

Should an application configuration interface be broken into multiple interfaces to reduce feature creep?

My windows service is neatly separated into 5 components - each with their own interface and pulled together by a bootstrapper. One of my requirements is to provide configuration options in my ...
4
votes
2answers
137 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
3answers
162 views

Instantiating class that contains methods to check some of the settings and also return values from my app.config file

I am writing a console application and have a class called ApplicationConfiguration that contains methods to check some of the settings and also return values from my app.config file. For instance ...
4
votes
5answers
1k 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 ...
4
votes
2answers
875 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
194 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
315 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
890 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
410 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
6k 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
123 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
85 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
3answers
2k 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 ...
3
votes
1answer
74 views

How to access environment-specific configuration in an enterprise application?

My application is a generic enterprise application which can be deployed on any application server running on any OS. I don't know how/where to configure my application, except for the database ...
3
votes
1answer
69 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
470 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
132 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
202 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
264 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
328 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
408 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
231 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
2answers
69 views

Where to put configuration constants?

Considering a small embedded C project, how to decide if certain constants belong to a global configuration file the header of the "module == compilation unit" on top of the the actual C file or ...
2
votes
5answers
218 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
2answers
109 views

Where should you store/how should you control access to application secrets?

There are these relevant questions questions: Strategy for keeping secret info such as API keys out of source control? How do you deal with configuration files in source control? How to version ...
2
votes
3answers
437 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
2answers
58 views

How to handle large number of configuration parameters across a program conceptually?

Imagine a software system where you have like 100 parameters, each of which is sensible to change (in my case this is a reasearch system for machine learning). The obvious solution is to store all ...