<html> <head> <title>The Branching Papers -- Perforce FAQs</title> <head> <body bgcolor=#ffffff> <font size=-2><b><a href="branching.html#br07">[INDEX]</a></b></font> <p> <b> Why use branch views? </b> <blockquote> The relationship of a branch view to a set of branched files is a loose one. A branch view basically serves as a mapping specification which can be used for any <b>p4 integrate</b> command that names that view. However, while branch views are ephemeral, actual integration history is preserved forever. <p> Say I create a branch view called 'titan': <pre> Branch: titan View: //depot/main/... //depot/project_titan/... </pre> The branch view has no effect on any of the files in the depot. Whether or not I even use the branch view is a matter of choice. This particular view has such a simple mapping that I can skip the view and specify the mapping directly on the <b>p4 integrate</b> command: <pre> p4 integrate //depot/main/... //depot/project_titan/... </pre> which does exactly the same thing as <pre> p4 integrate -b titan </pre> Where branch views really prove useful is when mappings get complex. E.g., consider: <pre> Branch: neptune View: //depot/main/server/... //depot/project_neptune/server/... //depot/rel2.0/tools/... //depot/project_neptune/tools/... //depot/rel3.1/qa/... //depot/project_neptune/qa/... </pre> This sets up a handy mapping for the 'neptune' development project. Using this branch view, you can merge all the changes you need into project_neptune using one command instead of three. That is, you can do: <pre> p4 integrate -b neptune </pre> instead of: <pre> p4 integrate //depot/main/server/... //depot/project_neptune/server/... p4 integrate //depot/rel2.0/tools/... //depot/project_neptune/tools/... p4 integrate //depot/rel3.1/qa/... //depot/project_neptune/qa/... </pre> When you delete a branch view, you lose none of data about what changes got integrated from which file to which. What you lose is the shorthand for specifying that info. For example, if I do: <pre> p4 branch -d neptune </pre> The 'neptune' branch view disappears from the Perforce database, but all the //depot/project_neptune files remain. </blockquote> <p> <i>(April 1998)</i> </p> <font size=-2><b><a href="branching.html#br07">[INDEX]</a></b></font> <hr> <h6>This is file $Id: //guest/universitytexas/faq/br07.html#1 $ in the <a href="http://public.perforce.com/public/index.html">Perforce Public Depot</a></h6> </body> </html>
|#1||684||jim_dowsett||Beginning point for UTA se1 CSE5324 summer 2001 version control/file sharing project.|
Publish "Branching FAQ"
(pull in changes from //guest/laura_wingerd/perforce/faq/... )
|#1||83||laura_wingerd||The Branching Papers.|