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http://jira.codehaus.org/browse/MRELEASE-576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=227984#action_227984
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Ed Hillmann commented on MRELEASE-576:
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OK, I've updated the two poms (parent/pom.xml and helloWorldJar/pom.xml) so
they each have an SCM declaration that points to their relevant location in the
Subversion repository. And the outcome is the same. The tag created during
the release is the branches directory, not the branched/mySecondBranch
subdirectory. I'll attach a new version of the POMs as I tested them.
> Subversion Tag is incorrect when releasing from a Branch
> --------------------------------------------------------
>
> Key: MRELEASE-576
> URL: http://jira.codehaus.org/browse/MRELEASE-576
> Project: Maven 2.x Release Plugin
> Issue Type: Bug
> Components: prepare
> Affects Versions: 2.0
> Environment: Linux
> Reporter: Ed Hillmann
> Priority: Minor
> Attachments: myBranch.zip, mySecondBranch-v2.zip, mySecondBranch.zip
>
>
> I've been able to recreate this error using a dummy application. This is
> what I've done.
> 1) Created a HelloWorld project, which has a single sub module HelloWorldJar.
> HelloWorlJar uses HelloWorld as it's parent. I first created this on a
> trunk in a svn repository and committed everything.
> 2) I used "release:branch" to create a branch.
> 3) Checked out the branch, and on the working copy of the branch I ran "mvn
> release:prepare". It worked fine (the tag was constructed correctly). "mvn
> release:perform" also worked swimmingly. I've attached these maven projects
> in the myBranch.zip file.
> 4) Back on the trunk, I created another branch, named mySecondBranch
> 5) After checking out mySecondBranch, I introduced a new module named parent.
> HelloWorldJar was updated to use parent as it's parent (yes, I'm not very
> creative in the naming department). Parent was also listed as a module in
> HelloWorld (in addition to HelloWorldJar). Everything's committed. The SCM
> value is correct (it's the right branch directory). I've attached the maven
> projects in the mySecondBranch.zip file.
> 6) When I run "mvn release:prepare", it all builds, but the tag is
> constructed incorrectly. Instead of /tags/helloWorld-2.0 pointing to a
> revision of /branches/mySecondBranch, /tags/helloWorld-2.0 points to
> /branches.
> 7) {OK, this is wierd}. When I run "mvn release:perform", it checks out
> against the tag helloWorld-2.0. Which checks out the entire branches
> directory. Once it's done that (I'm using a test repository), it builds the
> correct branch (it's building using the correct branch). I don't know how
> it's working, but it is.
> So, I guess it's working OK. I'm not sure how it knows to pick out the
> correct branch (as it's checking out the full contents of the branch
> directory). So it's building it eventually.
> However, for large projects with multiple branches, this will be very slow to
> check out the entire contents of the branches directory, not to mention use
> much more disk space than is needed. If the tag is constructed correctly, it
> avoids the whole thing.
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