By William Nagel
In any software program improvement venture, many builders give a contribution alterations over a time period. utilizing a model keep watch over approach to trace and deal with those adjustments is essential to the continuing good fortune of the venture. This ebook introduces you to Subversion, a loose, open-source model keep an eye on approach, that is either extra strong and masses much less complicated than its predecessor CVS.In this useful, hands-on consultant, you are going to how one can use Subversion and the way to successfully merge a model keep watch over approach inside of your improvement approach. As a professional Subversion consumer, William Nagel attracts on classes realized via trial and blunder, offering valuable assistance for attaining initiatives that come up in daily software program improvement. Nagel essentially explains how one can extend at the integrated skills of Subversion, making the procedure paintings larger for you. He organizes Subversion instructions through job to permit for fast activity reference. utilizing instance scripts and configurations, he additionally comprises improvement methods that you should customise to suit your personal environment.Inside, you can find * A advisor to fitting Subversion on Linux, home windows, and Mac OS X. * an instructional walkthrough of Subversion, from developing your first repository to simple branching and merging. * a close examine an important Subversion patron instructions, in addition to homes, person configuration, and integration with a number of exterior instruments. * A consultant to repository management and association, together with repository safeguard and migration from one other model keep watch over procedure. * An in-depth examine automation in Subversion, together with utilizing hook scripts, metadata, and the Subversion API, plus instance scripts. * Case stories that learn either archetypal and real-world initiatives and their use of Subversion. * A Subversion command reference for speedy entry to crucial technical info. * information on Subversion's many complicated good points, similar to its Apache-integrated WebDAV server and database dossier garage system.Whether you're an administrator, undertaking supervisor, or software program developer, Subversion model regulate will enable you detect the whole capability of Subversion.
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Additional resources for Subversion Version Control: Using the Subversion Version Control System in Development Projects
Subversion will let you check out the entire repository at the top level, but doing so is generally not good practice. If you do, you may end up with multiple local copies of the source tree, because branches and tags are made by copying files. Instead, if you only check out the main trunk, you will ensure that you only have one version of the files at a time in your working copy. g. branches or tags), which I'll show you how to do in a later section. Part I: An Introduction to Version Control and Subversion 43 44 Part I: An Introduction to Version Control and Subversion Now, if you look closely at your new working copy, you can see that Subversion also has placed one additional directory in the directory that you checked out.
The files in your working copy now point to the branches/cvs_version/ directory, and any changes that you commit will be applied to that directory. In this particular case, running svn switch didn't make any changes to the files in your working copy, because the branch and your trunk are identical. Had they been different, Subversion would have updated all of your working copy files to reflect the cvs_version/ directory that you switched to. You can look at what directory you are currently switched to by running svn info.
Unfortunately, this means that the user must keep the accounting information describing when the branch was created (and when it was last merged) in order to ensure that the correct data is merged. Failure to keep track can result in undesired behavior. For instance, you can end up "undoing" a change, if you accidentally remerge a section of a file that has been removed since the first merge. Duplicate merging can also result in spurious conflicts if remerged sections have been modified instead of removed.