Rethrow errors other than ENOENT and ENOTDIR when reading the package
spec as a directory, mark the tests that run npm as slow so FAST_TEST
skips them, and use ./external_plugins/my_plugin in the README examples.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Installing a plugin used to take two steps, npm install followed by plugin
add, and both silently did their work in whatever directory they were run
from. The new plugin install <package> subcommand runs npm install --save
and then discovers the plugin through the existing loadPluginList logic,
so the plugin list is updated in the same step.
The command refuses to run outside a Clusterio installation, detected by
the package.json the installer writes or one that depends on a Clusterio
package. plugin add with a bare package name warns in the same situation.
Reinstalling a plugin that is already listed reports it as such instead of
failing. Installing a package without the clusterio-plugin keyword fails.
Fixes#1008
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
