Commit Graph

4 Commits

Author SHA1 Message Date
Ian Campbell 935d47bbe9 Ignore unknown arguments on the top-level command.
This allows passing argument to plugins, otherwise they are caught by the parse
loop, since cobra does not know about each plugin at this stage (to avoid
having to always scan for all plugins) this means that e.g. `docker plugin
--foo` would accumulate `plugin` as an arg to the `docker` command, then choke
on the unknown `--foo`.

This allows unknown global args only, unknown arguments on subcommands (e.g.
`docker ps --foo`) are still correctly caught.

Add an e2e test covering this case.

Signed-off-by: Ian Campbell <ijc@docker.com>
2019-01-30 13:45:26 +00:00
Ian Campbell e5e578abc7 Allow plugins to make use of the cobra `PersistentPreRun` hooks.
Previously a plugin which used these hooks would overwrite the top-level plugin
command's use of this hook, resulting in the dockerCli object not being fully
initialised.

Provide a function which plugins can use to chain to the required behaviour.
This required some fairly ugly arrangements to preserve state (which was
previously in-scope in `newPluginCOmmand`) to be used by the new function.

Signed-off-by: Ian Campbell <ijc@docker.com>
2019-01-30 13:45:26 +00:00
Ian Campbell 20a284721c Integrate CLI plugins with `docker help «foo»`
Signed-off-by: Ian Campbell <ijc@docker.com>
2019-01-30 13:45:18 +00:00
Ian Campbell 5db336798c Add some simple e2e tests for executing CLI plugins
To help with this add a bad plugin which produces invalid metadata and arrange
for it to be built in the e2e container.

Signed-off-by: Ian Campbell <ijc@docker.com>
2019-01-30 13:44:05 +00:00