Previously, if one invokes the service asking for dependency `foo` and
`foo` does not exist we created a starter for it, that is
`spring-boot-starter-foo`. This mechanism was put in place because we
don't know all starters and to offer a nice fallback for users who know
what they're doing.
That statement proved to be wrong since users actually discover new
starters via the service and don't seem to attempt to create such starter
that are located in the `org.springframework.boot` groupId anyway. Most
if not all of those are pilot errors.
This commit enables strict validation of dependencies and generate an
appropriate exception if it isn't defined in the meta-data.
Closes gh-234
This commit improves the dependency mapping infrastructure to include the
groupId and artifactId attributes alongside the existing version. For
consistency, the attribute has been renamed from `versions` to
`mappings`.
This allows to better support the `redis` use case: the starter was
renamed from `spring-boot-starter-redis` to
`spring-boot-starter-data-redis` and previously we had two entries
excluding each other using version ranges.
Closes gh-219
This commit splits the feature of Spring Initializr in several modules:
* `initializr-generator` is a standalone library that is responsible for
generating projects based on a `File` directory. It has a minimal set of
dependencies and is not web-related
* `initializr-web` provides the web integration (project generation,
meta-data, etc)
* `initializr-actuator` is an optional module that can be added to
support project-generation-specific statistics
Closes gh-214
