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66 lines
2.3 KiB
Plaintext
66 lines
2.3 KiB
Plaintext
Changes should be committed to the CVS HEAD only when they are in a
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working state. The definition of "working" is somewhat liquid; a good
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guiding principle is that anyone checking out HEAD should receive a
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checkout of working software.
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When you want to work on changes that are likely to temporarily break
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large swathes of code, you should probably work on a private branch.
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Since CVS branching and merging is something of a black art, here are
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some simple step-by-step instructions for creating and using a branch.
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To create your private branch:
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# Get most up-to-date tree before branching
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cvs update
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# Create a branch called "my-branch"
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cvs tag -b my-branch
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# Switch working copy to the "my-branch" branch
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cvs update -r my-branch
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At this point you'll be on a branch called "my-branch". Any changes
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you make will not affect people working on HEAD, or on other branches.
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Use name for your branch that is both descriptive and unique.
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Starting the branch name with your SourceForge username
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(e.g. "mcb30-realmode-redesign") is a good idea.
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When you want to merge the changes on your branch back into HEAD, do
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the following:
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# Ensure there are no not-yet-checked-in modifications in your tree)
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cvs -q update
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# Tag the merge point in the "my-branch" branch
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cvs tag -c my-branch-merge-1
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# Switch working copy back to HEAD
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cvs update -A
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# Merge changes from the branch
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cvs update -j my-branch
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# Commit merged changes to HEAD
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cvs commit
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If you then want to continue working further on the "my-branch" branch,
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do the following
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# Switch working copy back to the "my-branch" branch
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cvs update -r my-branch
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and then when you want to merge some more changes back to HEAD:
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# Ensure there are no not-yet-checked-in modifications in your tree)
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cvs -q update
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# Tag the merge point in the "my-branch" branch
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cvs tag -c my-branch-merge-2
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# Switch working copy back to HEAD
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cvs update -A
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# Merge changes from the branch
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cvs update -j my-branch-merge-1 -j my-branch
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# Commit merged changes to HEAD
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cvs commit
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Note that the format of the "merge changes from the branch" command has
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changed, because this time you need to only merge changes since the last
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merge point.
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When you have finished with your branch and merged all the changes
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back to HEAD, simply stop using the branch.
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