Update the `AbstractJarWriter` so that it can directly build the layer
index as entries are written. Prior to this commit, a layer tracking
was handled by a decorator class which was broken because it didn't
override enough methods. Since `AbstractJarWriter` has quite a complex
API, it seems sensible to have it handle the layer index directly,
removing the need for a decorator entirely.
Fixes gh-23801
Previously, when building a layered jar with Gradle, project
dependencies were treated the same as any other dependency, being
included in the dependencies or snapshot dependencies layer based
on their version.
This commit updates the default layering when using Gradle to include
project dependencies in the application layer by default. The DSL has
also been updated to allow their layer to be customized using new
includeProjectDependencies() and excludeProjectDependencies() methods
rather than relying on including and excluding them via a
group:artifact:version pattern.
Closes gh-23431
Update `Repackager` to ensure that `getLayout` is called before we
backup the source file. This restores earlier behavior that some
custom `ModuleFactory` implementations were relying on.
Closes gh-22995
Prior to this commit, when the Maven plugin copied
spring-boot-loader.jar to a repackaged archive the timestamps of class
files were preserved but the timestamps of directories were not
preserved. This resulted in the directories having a current timestamp.
This commit copies the directory timestamps from spring-boot-loader.jar
to the repackaged archive and adds tests to verify the proper
behavior.
See gh-20927
Update the Maven plugin so that layered jars now use the regular "flat"
format. The layers.idx file now describes which layer each file should
be placed.
See gh-20813
Co-authored-by: Phillip Webb <pwebb@pivotal.io>
Create a dedicated layer that is used to hold the launcher support
classes. The layer sits between `dependencies` and
`snapshot-dependencies` so that the layer is sensible for both
SNAPSHOT and RELEASE versions of Spring Boot
Closes gh-20529
Simplify layer customization logic for both Maven and Gradle and
refactor some internals of the Gradle plugin.
Both Maven and Gradle now use a simpler customization format that
consists of `application`, `dependencies` and `layer order` sections.
The `application`, `dependencies` configurations support one or more
`into` blocks that are used to select content for a specific layer.
Closes gh-20526
This commit adds configuration to the Spring Boot Gradle plugin that
allows the names and contents of layers to be customized in the build
configuration.
Fixes gh-20296
Maven's war plugin does not support reproducible builds, resulting in
the entries in the war file not being written in a consistent order
from build to build.
Closes gh-20176
This commit adds an additional 'layers/configuration' property that can
be used to refer to a separate layers configuration file. This separate
file defines:
* The layers and their order of precedence,
* How libraries are handled using filters that match against the
coordinates of each library, and
* How classes are handled using filters that match against the location
of the entry
An XSD to validate the XML configuration file is available.
Closes gh-20295
Co-authored-by: Stephane Nicoll <snicoll@pivotal.io>
Pull functionality from `Repackager` into a new `Packager` base class
and develop a variant for Docker image creation. The new `ImagePackager`
class provides a general purpose way to construct jar entries without
being tied to an actual file. This will allow us to link it to a
buildpack and provide application content directly.
Closes gh-19834
Support an alternative fat jar format that is more amenable to Docker
image layers.
The new format arranges files in the following structure:
BOOT-INF/
layers/
<layer-name #1>
/classes
/lib
<layer-name #2>
/classes
/lib
The `BOOT-INF/layers.idx` file provides the names of the layers and the
order in which they should be added (starting with the least changed).
The `JarLauncher` class can load layered jars in both fat and exploded
forms.
Closes gh-19767
Co-authored-by: Phillip Webb <pwebb@pivotal.io>
Update the `Repackager` class so that an additional `classpath.idx` file
is written into the jar that provides the original order of the
classpath. The `JarLauncher` class now uses this file when running as
an exploded archive to ensure that the classpath order is the same as
when running from the far jar.
Closes gh-9128
Co-authored-by: Phillip Webb <pwebb@pivotal.io>
