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The BriefCASE tool development occurs on mainly on the master branch of this repository. The 'master' branch contains the releases and the HEAD of this branch should contain the latest release. Individual development efforts should be completed on branches from the master branch and then merged back into the master via a pull request including informal peer review.
It is the general policy to consider releases as final; no updates to releases are made. Instead all updates are made to the master branch and incorporated into the next release.
Occasionally it is desirable to create additional special-purpose branches for responding to issue/bug reports. These should be made from a branch from the release point and, if possible, merged onto the master branch prior to completion of the next release cycle. If such a branch spans a release, the developer should be merge the updated master branch onto the special-purpose branch to capture the updated versioning information and to avoid conflicts merging back into the develop branch.
Branch names should be chosen to describe the activity to be taken on the branch. For example, to develop a new feature 'A', the branch might be named 'develop-feature-A.' Or to fix an issue recorded in the issue base the branch might be named 'fix-issue-x' where x is the sequence number assigned to the issue.
Tags are typically reserved for releases, but may be used to mark special points in the development process.
BriefCASE continuous integration is carried out at Amazon CodeBuild. Builds of developmental snapshots are uploaded to the AWS bucket BriefCASE snapshots page. Additionally, CodeBuild conducts builds and tests in response to pull requests against the BriefCASE repository.
Since BriefCASE has converted to the Semantic Versioning model, each of the plugins that compose the BriefCASE feature now have individual version numbers that reflect the updates to that plugin. Thus, they are no longer synchronized to the feature versions.
The BriefCASE code base has been modified to enable Eclipse plugin API analysis which will result in error messages and warnings (in the "Problems" tab of the IDE) to guide developers as to how and when to update version numbers and apply API tags such as @since to added or modified elements. The Oomph version management analysis has also been enabled to assist with version number markings.
The process for a release updates master branch with the release version number, commits the master branch version number updates, builds the release version, updates the version numbering to the new development snapshot numbers, and finally commits the master branch with the new development version numbering. To accomplish the release preparation, the BriefCASE release process applies the Tycho Release Workflow to help automate the process. The steps in the release workflow are as follows:
-
Prepare for the release by running the release workflow plugin:
mvn release:prepare
During this process maven will ask to confirm all of the plugin and feature versions and for the tag to applied to the release. Release tags shall be of the form 'x.y.z-RELEASE' where
x
is the major version number,y
is the minor version number, andz
is the patch version number. -
Ordinarily one would expect to actually perform the release using the customary
mvn release:perform -Dgoals="clean verify"
command. However, this appears to run into difficulty fetching the appropriate tag to build. Instead do the following:git checkout x.x.x-RELEASE
mvn clean verify
where
x.x.x
is the version number to be released. -
Commit the release binaries into the companion releases repository at git@github.com:loonwerks/BriefCASE-Updates.git:
cp -r <path to built BriefCASE release>/repository/target/repository briefcase_<release-version-number>
Update the contents of the compositeArtifacts.xml and compositeContent.xml files.
git add ...
git commit -m "Add BriefCASE <release-version-number>"
-
Finally, push the update stable branch to the origin repository:
git push
Note that the previous instructions assume that the developer has set
up appropriate ssh keys such that interactive query for authentication
is necessary. If this is not done, the release:prepare
and
release:perform
steps will apparently just hang when such
interaction is required as they are in fact headless operations.
Alternatively to setting up ssh keys, the developer may add necessary
authenication information to the maven settings as described in Tycho
Release Workflow -- Configure the
SCM.