* Fix plexus gav
* Install maven instead of just building it
The plugins need to be available in the local repo, else the build may download old snapshots
[MNG-7529] Maven resolver makes bad repository choices
Structure the version checks slightly different to make the separation
between repository versions and the version range resolution clearer.
Ensure that any versions resolved as part of a version range request
only reference repositories that are actually enabled for the type of
version (SNAPSHOT versions against snapshot repos, release versions
against release repositories).
But keep Wagon as default transport. This PR merely includes
resolver http and file transport and switches wagon-http
to non-shaded one.
Changes:
* switch to non-shaded wagon-http (as httpClient is now shared)
* include resolver http and file transport
* override resolver default behaviour (native transport preferred over wagon, when both on classpath)
* provide simplistic means to choose transport
The chosen transport can be seen in debug (-X) output on line
`[DEBUG] Using transporter XXX...`
The `-Dmaven.transport` simplistic switch can be used to choose transport:
* not set: default, that is Wagon
* `wagon`: explicitly sets Wagon
* `resolver`: explicitly sets resolver native transports (file and http)
* `auto`: relies on resolver "auto discovery" (priorities, etc). This is MUST to keep transport pluggable with 3rd party transports. In fact, this was the default so far in Maven, along with the fact that native resolver transports were not included (as resolver prefers native ones over Wagon).
This PR makes VersionScheme a component, is injected where needed
(instead of ad-hoc instantiation), but provides room for
different schemas, as GenericVersionScheme is "default"
but now nothing stops to add other schemes as well.
Maven Artifact Transfer silently prevents group level metadata to reach Resolver and causes metadata loss on install/deploy. Fix is to "bridge" this from maven-resolver-provider (and core) by reusing the actual metadata that m-plugin-p:addPluginArtifactMetadata mojo adds, but m-a-t filters out.
Reuse MavenExecutionRequest#getStartTime() throughout for snapshot versions,
last updated fields in metadata consistently for local and remote repositories
for the entire reactor and its modules.
This closes#381
