Support for incoming deletions through provider-specific metadata file
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Key: SCM-231
URL: http://jira.codehaus.org/browse/SCM-231
Project: Maven SCM
Issue Type: Improvement
Components: maven-scm-provider-local
Affects Versions: 1.0
Reporter: Arne Degenring
Attachments: patch.txt
As discussed on continuum-users:
http://www.nabble.com/Update-over-scm-local-does-not-delete-files-removed-from-source-dir-tf2257460.html#a6281593
Scm-local so far does not support incoming deletions. That means if you delete
a file from the repository, it won't be deleted in your local working
directory. This is a problem, e.g. if you use scm-local to connect Continuum to
a ClearCase dynamic view. Files that are deleted from the repository will stay
in Continuum's working directory and potentially cause the build to fail.
The solution is to let scm-local maintain a xml file .maven-scm-local that
contains the list of files in the repository directory, as seen during the last
checkout or update operation:
- During checkout, the file .maven-scm-local is created in the checkout base
directory. Its an XML file containing the list of files that have been checked
out.
- The update command looks for the file. If it is there, it compares the
contents of that file to the current repository directory contents (including
subdirs). All files that are in .maven-scm-local but are no longer in the
repository dir, have been deleted in the repository dir. The update command
therefore removes them from the checkout dir.
- If for whatever reason .maven-scm-local is not there, the update command
won't delete any files. That way, we're backwards compatible.
- After completing the update process, the update command rewrites the
.maven-scm-local metadata file.
The attached patch contains the implementation and test cases.
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