Previously, Aether's configuration was largely hard-coded making it
impossible to configure a mirror, provide credentials for accessing
a repository, etc.
This commit adds support for configuring Aether via Maven's
settings.xml file. The support is optional and must be enabled by
grabbing spring-boot-maven-settings in an init script. The Aether
instance that's used when running the application will then be
configured using settings.xml. The settings file is expected to be
found in ${user.home}/.m2/settings.xml.
The configuration of the following items is currently supported:
- Offline
- Proxies
- Mirrors
- Server authentication
- Local repository location
If the support is not enabled, settings.xml does not exist, or
settings.xml does not configure certain things then sensible defaults
are applied.
Depending on ASM itself can cause problems as it can clash with other
libraries' dependency on it. This commit updates
spring-boot-loader-tools to depend upon spring-core and use its
repackaged copy of ASM instead. Depending on spring-core also brings
with it the advantage of giving access to its various bits of utility
code.
spring-boot-maven-plugin has been updated to remove its ASM
exclusions as they will no longer clash with the version from
spring-boot-loader-tools
(59483608)
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.
Previously, @Grab annotations would use Ivy to download the
dependencies with some of Ivy's known limitations being worked around
by GrapeEngineCustomizer.
This commit adds a GrapeEngine implementation that uses Aether,
the dependency resolution 'engine' used by Maven and Grails. To ensure
consistent behaviour with a Maven build, the Aether-powered dependency
resolution uses the dependency management configuration from the
spring-boot-starter-parent pom file.
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
Inherit default profile activation for spring-snapshot-build in the
spring-boot-starter-parent from the spring-boot-parent.
Allow sample projects to work correctly in eclipse.
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.
Andy Wilkinson
Phillip Webb
Dave Syer
Phillip Webb