Previously, querying the artifact's extension in
SinglePublishedArtifact would result in eager creation of the task
that creates the artifact. Typically, this is the bootWar task.
Instead of querying the extension, this commit reworks
SinglePublishedArtifact and its callers to call separate methods for
jar and war artifacts so that the extension check is no longer
required.
Tests have been added to ensure that running help does not trigger
any unexpected task creation. The tests' assertions tolerate some
variation in behavior that depend on the version of Gradle and
whether the configuration cache is enabled.
Closes gh-30211
The changes for gh-28562 attempted to align the Gradle plugin's
handling of META-INF with the Maven plugin's behavior. Unfortunately,
they want too far, applying the handling to both jar and war files
when the Maven plugin only applies it to jar files.
This commit reworks the changes so that they only apply to jar files.
Closes gh-30026
Previously, the classpath of bootJar, bootWar, and bootRun was
configured directly as a FileCollection derived from the main source
set's runtime classpath. This direct configuration meant that
subsequent changes to the main source set's runtime classpath may not
have been picked up.
This commit changes the configuration of the classpath to use a
Callable. This indirection allows subsequent changes to the main
source set's runtime classpath to be picked up as long as they
occur before Gradle calls the callable.
Closes gh-29672
Update the Maven and Gradle packaging for war files so that a
`classpath.idx` file is written into the archive that provides the
original order of the classpath, as was previously done for jar files.
The `WarLauncher` class will use this file when running as an exploded
archive to ensure that the classpath order is the same as when running
from the far war.
Fixes gh-19875
