Rework classloading for launched applications so that CLI classes and
dependencies are not visible. This change allows many of the previous
hacks and workarounds to be removed.
With the exception of the 'org.springframework.boot.groovy' package
and 'groovy-all' all user required depndencies are now pulled in
via @Grab annotations.
The updated classloading algorithm has enabled the following changes:
- AetherGrapeEngine is now back in the cli project and the
spring-boot-cli-grape project has been removed. The AetherGrapeEngine
has also been simplified.
- The TestCommand now launches a TestRunner (similar in design to the
SpringApplicationRunner) and report test failures directly using
the junit TextListener. Adding custom 'testers' source to the users
project is no longer required. The previous 'double compile' for
tests has also been removed.
- Utility classes have been removed in favor of using versions from
spring-core.
- The CLI jar is now packaged using the 'boot-loader' rather than using
the maven shade plugin.
This commit also applied minor polish refactoring to a number of
classes.
Prior to this commit, the Aether-based GrapeEngine was loaded in the
same class loader as the rest of Boot. This led to Aether's and its
dependencies' types polluting the application's class path. Most
notably, this caused problems with logging as the logging framework
could be permaturely initialized.
This commit isolates AetherGrapeEngine, Aether and its dependencies
into a separate class loader. This is done by customizing the
packaging of the CLI's jar file with the internal directory housing
all of the types that will be loaded by the separate class loader.
Usually, use of @Grab requires you to specify a group, module, and
version when identifying a dependency. This can be done in two
different ways:
@Grab(group='alpha', module='bravo', version='1.0.0')
@Grab('alpha:bravo:1.0.0')
This commit allows users to only specify a module: the group is
inferred and the version is the one dictated by the boot CLI. Both
forms are supported:
@Grab(module='bravo')
@Grab('bravo')
Groovy's global AST transformations, which is how Grab is implemented,
do not support ordering and we need to augment the AST for the Grab
annotation before its processed by the Grab AST transformation. To
work around this, reflection is used to get hold of the compile
operations in the conversion phase, and a new AST transformation is
inserted immediately before the first AST transformation operation.
To allow a module's groupId and version to be resolved consistently,
META-INF/springcli.properties has been enhanced to include properties
for each module that we want to support in the following form:
<module>.groudId = <groudId>
<module>.version = <version>
<groupId> and <version> are taken from the Maven project's
dependencies and VPP, a Velocity-based pre-processor, is used to
automatically generate the enhanced properties file.
To prevent pollution of spring-boot-cli's class path with the
dependencies that are only required to populate springcli.properties,
a separate project, spring-boot-cli-properties, has been created.
spring-boot-cli depends upon this now project causing it to, via the
shade plug, include the properties file in its jar.
Previously DependencyCustomizer allow a dependency to be added by
specifying its full coordinates, i.e. a group ID, artifact ID, and
version. This commit updates DependencyCustomizer to only require
an artifact/module ID. The group ID and version are then resolved
using the same mechanism as the enhanced @Grab support.
[#56328644] [bs-312] Allow @Grab without version
Rework main build POM to be an aggregator pom that does not inherit
from any parent. Introduce new spring-boot-dependencies module to
act as a parent for both spring-boot-starter-parent and
spring-boot-parent.
Create spring-loader-tools containing utilities that can be used
with both Maven and Gradle plugings.
Refactored existing Maven plugin to use the new project.
Issue: #53129653
* Make Rector @Autowirable
* Create a ConsumerBeanPostProcessor so users can add
@On and @Reply to bean methods
* Added groovy auto compiler and script sample
[#53955419] [bs-250]
Add a setup profile allowing the maven plugin to be build alone.
Required to prevent 'unresolveable build extension' errors on a
fresh checkout.
Issue: #52091115
Develop a maven plugin that can be used to package executable jar/war
archives. The plugin is intended to be used as a drop-in replacement
for the standard maven-jar-plugin. To use the plugin declare it with
<extensions>true</extensions> then set the project type to
'executable-jar' or 'executable-war'.
Configuration options for 'executable-war' generation are intentionally
much more limited then the standard maven-war-plugin (for example
overlays are not supported). It is anticipated that builds requiring
complex configuration will continue to use the standard plugin in
combination with a custom assembly.
Issue: #52091115
Phillip Webb
Andy Wilkinson
Dave Syer
Sergey Shcherbakov
Phillip Webb
Dave Syer