ImageJ2 uses several major components, each of which is released on its own development cycle.
Component releases are done using the SciJava release-version.sh script, which uses the maven-release-plugin to do some of the work. All releases are tagged in their respective Git repositories, with binary builds deployed to the SciJava Maven repository.
The Bump-POM-SciJava Jenkins job is used to automatically manage the version properties in pom-scijava. If there are no breaking changes in the ImageJ2 software stack components that will be released, the procedure is simple:
- Perform all necessary releases as indicated below.
- Run Bump-POM-SciJava and select "UPDATE_XXXX" for all components that either:
- Were newly released
- Are downstream of a newly released component
This will update the version properties to the latest releases of all components, and automatically update the pom-scijava usage to this newest pom-scijava version for each component that "UPDATE_XXXX" was selected.
If some component releases will include breaking API changes, the procedure is different - as these changes will typically propagate through the software stack and will break builds if the downstream API use is not updated. In this case, the procedure is as follows:
- Manually update pom-scijava's version properties to point to the expected (but not yet released) version of each component that will be released. As a part of this commit, the pom-scijava version number should be increased as well.
- For each component that will be released, starting from the lowest
component in the stack (e.g. the component with the breaking changes that
are being propagated):
- Add a single commit that updates the pom version to the latest and performs any necessary API updates.
- Release the component as indicated below.
- Run
Bump-POM-SciJava
with the
POM_SCIJAVA_BUMPED_MANUALLY
parameter enabled to deploy the latest pom-scijava. Other parameters should be disabled. - (Optional) Run Bump-POM-SciJava for any remaining downstream components that need to be updated (e.g. those that were not manually updated).
All ImageJ2 prerequisites use the release-version.sh script. For each project:
cd <project top-level>
release-version.sh <new version>
The version numbering conventions for each project are as follows:
Project | Version syntax |
---|---|
SciJava Common | 1.X.X |
ImgLib2 | 2.0.0-beta-X |
SCIFIO | 0.X.X |
ImageJ Launcher | 3.X.X |
After running the release-version.sh script, you will need to manually deploy:
open http://jenkins.imagej.net/job/ImageJ-launcher/build
And build the newly pushed release tag; e.g., imagej-launcher-3.14.159
.
The following steps perform a release of ImageJ itself:
Verify that the pom-scijava version used by ImageJ references the latest available version of ImageJ 1.x:
cd imagej
sj-version.sh | grep imagej1.version
If not, tell Jenkins to update imagej1.version
in
pom-scijava.
Otherwise, uploading a new release to the update site will downgrade
all ImageJ2 and Fiji users to an obsolete ImageJ 1.x version.
First of all, if you have an Eclipse instance running, quit it, or make sure that Project>Build automatically is checked off.
cd imagej
release-version.sh --skip-push --skip-deploy --tag=temp 2.0.0-beta-7
git push origin temp
- Where
2.0.0-beta-7
is the new release version. - The
--tag=temp
argument creates a temporary tag namedtemp
, from which we will build the release candidate in the next step.
open http://jenkins.imagej.net/job/ImageJ-release-build/build
And specify the newly pushed temp
tag.
- Download the resultant application ZIP from Jenkins and perform desired tests.
- Fix any critical bugs found on
master
- Delete the
temp
tag locally and remotely - Start the release process over again
At a minimum, the following should be tested:
File -> Open
- Ideally on all SCIFIO-supported formats.
- On at least one dataset that will force caching, e.g.
test&axes=X,Y,Z&lengths=256,256,100000.fake
File -> Save as...
- ideally for all SCIFIO-supported output formats.
ImageJ -> Quit ImageJ
- Test this before and after opening data, especially data that causes caching.
- Plugins
- Test as many IJ2 plugins (green puzzle piece in the menus) as possible.
- Test several legacy plugins (IJ1 microscope in the menus) to verify compatibility layer.
cd imagej
release-version.sh 2.0.0-beta-7
- Where
2.0.0-beta-7
is the new release version.
Optionally, after performing the release, tell Jenkins to update
imagej.version
in
pom-scijava.
-
Unpack the application ZIP
-
Add upload information for the ''ImageJ'' update site:
./ImageJ-linux64 --update edit-update-site ImageJ http://update.imagej.net/ \ <user>@update.imagej.net /home/imagej/update-site/
-
Simulate an upload (to make sure everything is correct):
./ImageJ-linux64 --update upload-complete-site --simulate ImageJ
-
If the upload will render files obsolete that Fiji still relies on, upload them to the Fiji site using the
--force-shadow
option:./ImageJ-linux64 --update upload --force-shadow --site Fiji <file>...
-
When everything is alright, upload it for real:
./ImageJ-linux64 --update upload-complete-site ImageJ
-
Create a blog post on the ImageJ web site. It should be modeled after a previous blog entry.
-
Rename the artifact
ij-app-XYZ-application.zip
toimagej-XYZ.zip
whereXYZ
is the release version number. Add it as an attachment to the post. -
Update the Downloads page.
-
Send a release announcement to the mailing lists (ImageJ and imagej-devel). It should be an abbreviated version of the blog post, modeled after a previous release announcement.