pseudomuto/protokit
GitHub: pseudomuto/protokit
Stars: 81 | Forks: 32
# protokit
[][github-ci]
[][codecov-url]
[][godoc-url]
[][goreport-url]
A starter kit for building protoc-plugins. Rather than write your own, you can just use an existing one.
See the [examples](examples/) directory for uh...examples.
## Getting Started
package main
import (
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/types/pluginpb"
"github.com/pseudomuto/protokit"
_ "google.golang.org/genproto/googleapis/api/annotations" // Support (google.api.http) option (from google/api/annotations.proto).
"log"
)
func main() {
// all the heavy lifting done for you!
if err := protokit.RunPlugin(new(plugin)); err != nil {
log.Fatal(err)
}
}
// plugin is an implementation of protokit.Plugin
type plugin struct{}
func (p *plugin) Generate(in *pluginpb.CodeGeneratorRequest) (*pluginpb.CodeGeneratorResponse, error) {
descriptors := protokit.ParseCodeGenRequest(req)
resp := new(pluginpb.CodeGeneratorResponse)
for _, d := range descriptors {
// TODO: YOUR WORK HERE
fileName := // generate a file name based on d.GetName()
content := // generate content for the output file
resp.File = append(resp.File, &pluginpb.CodeGeneratorResponse_File{
Name: proto.String(fileName),
Content: proto.String(content),
})
}
return resp, nil
}
Then invoke your plugin via `protoc`. For example (assuming your app is called `thingy`):
`protoc --plugin=protoc-gen-thingy=./thingy -I. --thingy_out=. rpc/*.proto`
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