This removes the logic to automatically
add [OPTIONS] to the usage output.
The current logic was broken if a command
only has deprecated or hidden flags, and
in many cases put the [OPTIONS] in the
wrong location.
Requiring the usage string to be set
manually gives more predictable results,
and shouldn't require much to maintain.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This patch introduces a new experimental engine-level plugin management
with a new API and command line. Plugins can be distributed via a Docker
registry, and their lifecycle is managed by the engine.
This makes plugins a first-class construct.
For more background, have a look at issue #20363.
Documentation is in a separate commit. If you want to understand how the
new plugin system works, you can start by reading the documentation.
Note: backwards compatibility with existing plugins is maintained,
albeit they won't benefit from the advantages of the new system.
Signed-off-by: Tibor Vass <tibor@docker.com>
Signed-off-by: Anusha Ragunathan <anusha@docker.com>
