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![Paddy](/assets/img/avatar_default.png)
Switch to using Go modules. This migrates our vendor.json to use Go 1.11's modules system, and replaces the vendor folder with the output of go mod vendor. The vendored code should remain basically the same; I believe some tree shaking of packages and support scripts/licenses/READMEs/etc. happened. This also fixes Travis and our Makefile to no longer use govendor.
59 lines
2.1 KiB
Go
59 lines
2.1 KiB
Go
// The plugin package exposes functions and helpers for communicating to
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// plugins which are implemented as standalone binary applications.
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//
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// plugin.Client fully manages the lifecycle of executing the application,
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// connecting to it, and returning the RPC client for dispensing plugins.
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//
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// plugin.Serve fully manages listeners to expose an RPC server from a binary
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// that plugin.Client can connect to.
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package plugin
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import (
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"context"
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"errors"
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"net/rpc"
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"google.golang.org/grpc"
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)
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// Plugin is the interface that is implemented to serve/connect to an
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// inteface implementation.
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type Plugin interface {
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// Server should return the RPC server compatible struct to serve
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// the methods that the Client calls over net/rpc.
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Server(*MuxBroker) (interface{}, error)
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// Client returns an interface implementation for the plugin you're
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// serving that communicates to the server end of the plugin.
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Client(*MuxBroker, *rpc.Client) (interface{}, error)
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}
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// GRPCPlugin is the interface that is implemented to serve/connect to
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// a plugin over gRPC.
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type GRPCPlugin interface {
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// GRPCServer should register this plugin for serving with the
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// given GRPCServer. Unlike Plugin.Server, this is only called once
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// since gRPC plugins serve singletons.
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GRPCServer(*GRPCBroker, *grpc.Server) error
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// GRPCClient should return the interface implementation for the plugin
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// you're serving via gRPC. The provided context will be canceled by
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// go-plugin in the event of the plugin process exiting.
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GRPCClient(context.Context, *GRPCBroker, *grpc.ClientConn) (interface{}, error)
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}
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// NetRPCUnsupportedPlugin implements Plugin but returns errors for the
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// Server and Client functions. This will effectively disable support for
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// net/rpc based plugins.
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//
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// This struct can be embedded in your struct.
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type NetRPCUnsupportedPlugin struct{}
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func (p NetRPCUnsupportedPlugin) Server(*MuxBroker) (interface{}, error) {
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return nil, errors.New("net/rpc plugin protocol not supported")
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}
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func (p NetRPCUnsupportedPlugin) Client(*MuxBroker, *rpc.Client) (interface{}, error) {
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return nil, errors.New("net/rpc plugin protocol not supported")
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}
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