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refactor: code generation works with new generator engine
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daniel vladco
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Nov 30, 2020
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,19 +1,31 @@ | ||
| .PHONY: install example | ||
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| install: | ||
| go install github.com/golang/protobuf/protoc-gen-go | ||
| protoc --go_out=paths=source_relative:./pb -I=./pb ./pb/*.proto | ||
| go install ./protoc-gen-gql | ||
| go install ./protoc-gen-gogqlgen | ||
| go install ./protoc-gen-gqlgencfg | ||
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| example: | ||
| protoc \ | ||
| --go_out=plugins=grpc,paths=source_relative:. \ | ||
| --gqlgencfg_out=paths=source_relative:. \ | ||
| --gql_out=svcdir=true,paths=source_relative:. \ | ||
| --gogqlgen_out=paths=source_relative,gogoimport=false:. \ | ||
| -I=. -I=./example/ ./example/*.proto | ||
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| example2: | ||
| protoc --go_out=plugins=grpc,paths=source_relative:. -I=. -I=./reflect/examples/optionsserver/pb/ ./reflect/examples/optionsserver/pb/*.proto | ||
| # Go tools dependencies | ||
| GO_TOOLS := \ | ||
| google.golang.org/grpc/cmd/protoc-gen-go-grpc \ | ||
| google.golang.org/protobuf/cmd/protoc-gen-go \ | ||
| github.com/99designs/gqlgen \ | ||
| ./protoc-gen-gql \ | ||
| ./protoc-gen-gogql | ||
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| GOPATH := $(shell go env GOPATH) | ||
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| .PHONY: all | ||
| all: all-tools pb/graphql.pb.go | ||
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| .PHONY: all-tools | ||
| all-tools: ${GOPATH}/bin/protoc go-tools | ||
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| .PHONY: go-tools | ||
| go-tools: $(foreach l, ${GO_TOOLS}, ${GOPATH}/bin/$(notdir $(l))) | ||
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| define LIST_RULE | ||
| ${GOPATH}/bin/$(notdir $(1)): go.mod | ||
| go install $(1) | ||
| endef | ||
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| $(foreach l, $(GO_TOOLS), $(eval $(call LIST_RULE, $(l) ))) | ||
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| pb/graphql.pb.go: ./pb/graphql.proto all-tools | ||
| protoc --go_out=paths=source_relative:. ./pb/graphql.proto | ||
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| ${GOPATH}/bin/protoc: | ||
| ./scripts/install-protoc.sh |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| package main | ||
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| import ( | ||
| "flag" | ||
| "log" | ||
| "os" | ||
| "path" | ||
| "path/filepath" | ||
| "strings" | ||
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| "github.com/jhump/protoreflect/desc/protoparse" | ||
| "github.com/vektah/gqlparser/v2/formatter" | ||
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| "github.com/danielvladco/go-proto-gql/pkg/generator" | ||
| ) | ||
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| type arrayFlags []string | ||
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| func (i *arrayFlags) String() string { | ||
| return "str list" | ||
| } | ||
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| func (i *arrayFlags) Set(value string) error { | ||
| *i = append(*i, value) | ||
| return nil | ||
| } | ||
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| var ( | ||
| importPath = arrayFlags{} | ||
| fileNames = arrayFlags{} | ||
| svc = flag.Bool("svc", false, "") | ||
| merge = flag.Bool("merge", false, "") | ||
| ) | ||
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| func main() { | ||
| flag.Var(&importPath, "I", "path") | ||
| flag.Var(&fileNames, "f", "path") | ||
| flag.Parse() | ||
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| newFileNames, err := protoparse.ResolveFilenames(importPath, fileNames...) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| descs, err := protoparse.Parser{ImportPaths: importPath}.ParseFiles(newFileNames...) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| gqlDesc, err := generator.NewSchemas(descs, *merge, *svc) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| for _, schema := range gqlDesc { | ||
| if len(schema.FileDescriptors) < 1 { | ||
| log.Fatalf("unexpected number of proto descriptors: %d for gql schema", len(schema.FileDescriptors)) | ||
| } | ||
| if len(schema.FileDescriptors) > 1 { | ||
| if err := generateFile(schema, true); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| break | ||
| } | ||
| if err := generateFile(schema, *merge); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } | ||
| } | ||
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| func generateFile(schema *generator.SchemaDescriptor, merge bool) error { | ||
| sc, err := os.Create(resolveGraphqlFilename(schema.FileDescriptors[0].GetName(), merge)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer sc.Close() | ||
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| formatter.NewFormatter(sc).FormatSchema(schema.AsGraphql()) | ||
| return nil | ||
| } | ||
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| func resolveGraphqlFilename(protoFileName string, merge bool) string { | ||
| if merge { | ||
| gqlFileName := "schema.graphqls" | ||
| absProtoFileName, err := filepath.Abs(protoFileName) | ||
| if err == nil { | ||
| protoDirSlice := strings.Split(filepath.Dir(absProtoFileName), string(filepath.Separator)) | ||
| if len(protoDirSlice) > 0 { | ||
| gqlFileName = protoDirSlice[len(protoDirSlice)-1] + ".graphqls" | ||
| } | ||
| } | ||
| protoDir, _ := path.Split(protoFileName) | ||
| return path.Join(protoDir, gqlFileName) | ||
| } | ||
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| return strings.TrimSuffix(protoFileName, path.Ext(protoFileName)) + ".graphqls" | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| .PHONY: generate start | ||
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| start: generate | ||
| go run ./main.go | ||
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| generate: gql/constructs/generated.go gql/options/generated.go | ||
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| pb/%.gqlgen.pb.go: pb/%.proto pb/%_grpc.pb.go pb/%.pb.go | ||
| protoc --gogql_out=paths=source_relative:. -I . -I ../../ ./pb/$*.proto | ||
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| pb/%_grpc.pb.go: pb/%.proto pb/%.pb.go | ||
| protoc --go-grpc_out=paths=source_relative:. -I . -I ../../ ./pb/$*.proto | ||
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| pb/%.pb.go: pb/%.proto | ||
| protoc --go_out=paths=source_relative:. -I . -I ../../ ./pb/$*.proto | ||
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| pb/%.graphqls: pb/%.proto | ||
| protoc --gql_out=svc=true:. -I . -I ../../ ./pb/$*.proto | ||
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| gql/%/generated.go: pb/%.graphqls pb/%.gqlgen.pb.go | ||
| gqlgen --config ./gqlgen-$*.yaml | ||
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