Any semantic value as to which repository should be trusted is imposed from the outside by process, not by the software itself.Ī later response to the same question shows that Subversion is the major player in the former category and Mercurial in the latter. The only real difference between CVS, Subversion, ClearCase, Perforce, VisualSourceSafe and all the other CVCSes is in the workflow, performance, and integration that each product offers.ĭistributed VCS systems are designed with the intent that one repository is as good as any other, and that merges from one repository to another are just another form of communication. All developers work (checkout) from that source, and then add (commit) their changes, which then become similarly Blessed. Craig Trader’s answer to the StackOverflow question Comparison between Centralized and Distributed Version Control Systems included this great synopsis of the two:Ĭentralized VCS systems are designed with the intent that there is One True Source that is Blessed, and therefore Good. Probably the most important question to consider when selecting a VCS is whether a centralized or a distributed system is more appropriate. However, Subversion still ranks highly on the cost-benefit curve of VCS products, when considering its ease of use, simple installation, flexibility, and scalability, among other key features. SCCS was extremely useful when it came out… but that was 1972 and it is rather dated today! The version control timeline from the Plastic SCM Blog organizes many of the same VCS products in an illustration that lets you see history at a glance.There you will see that Subversion dates back to 2000 and there are quite a number of newer systems worth consideration. when was it commercially available and who is using it. One key piece of information available in the Wikipedia tables is the history and adoption of each product, i.e. Their comparisons of version control software are very thorough, comparing a large number of facets of each in eight tables-Figure 1 shows a tiny excerpt highlighting an entry for Subversion:įigure 1: An excerpt from Wikipedia’s comparison of source control systems Wikipedia offers outstanding, detailed comparison tables for many different types of software. If you know what specific features you need in a version control system, but are not sure which systems deliver which features, start by reading the Wikipedia entry. Obviously I think Subversion is a great system, otherwise I would not have invested the time and energy in writing what you are reading but it is not necessarily the best choice for you. Saving a copy of your work folder as work_save or work_bak or work-05-21-2011 is source control, just not very good source control! Which source control system should you select? And as several posts point out, you are probably already using source control even if you have not installed a source control system. The discussion for ‘ Why should my team adopt source control?‘, on the other hand, gives you page after page of reasons why the answer is clear, including multiple-release support, rollback capability, diagnostic capability, traceability, backups, and more. These statements serve to illustrate how overwhelmingly clear the answer to the question is. Not having some sort of source control is pure insanity. Version Control is the most important tool that a programmer has, even more important than the actual programming languages. Version control is only necessary where the number of programmers is > 0. Here are a few of the more poignant comments from Is Subversion (Version Control) Necessary For A Small Development Group (1-2 programmers)? on StackOverflow: StackOverflow offers a wealth of supporting material if you need to convince yourself, your manager, or your colleagues. No matter the size of your development team, you should use source control. More often than not in computing, black and white answers dissolve to shades of grey on closer inspection: Not so with the question of whether to use source control. Introduction Should you use source control? Determining what to commit together: the change set.Grouping your files for reducing commit clutter: the change list.Understanding the two-stage process of Subversion.Handling multiple edits to the same line of a file: conflicts.Coping with a multi-user environment: the merge.Which source control system should you select?.Subversion and TortoiseSVN Cookbook Part 1- The Basics - Simple Talk Skip to content
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