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work on generating main.go and use config not hardcoded vals

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This commit is contained in:
cubixle
2021-06-18 13:58:58 +01:00
parent feff0c38eb
commit f435f65536
10 changed files with 124 additions and 76 deletions
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31
app.go Normal file
View File

@@ -0,0 +1,31 @@
package tuugen
import (
"embed"
"html/template"
"os"
"path/filepath"
)
func GenerateMain(FS embed.FS, cfg Config) error {
t, err := template.ParseFS(FS, "templates/main.go.tmpl")
if err != nil {
return err
}
outputFile := "cmd/app/main.go"
fp := filepath.Dir(outputFile)
if err := os.MkdirAll(fp, 0777); err != nil {
return err
}
f, err := os.Create(outputFile)
if err != nil {
return nil
}
if err := t.Execute(f, cfg); err != nil {
return err
}
return nil
}

4
cmd.go
View File

@@ -15,9 +15,9 @@ func runCommand(cmd string, args []string) error {
return nil
}
func GenerateProtos() error {
func GenerateProtos(protoFile string) error {
cmd := "protoc"
args := []string{"-I", ".:${GOPATH}/src", "--go_out=.", "--go-grpc_out=.", "service.proto"}
args := []string{"-I", ".:${GOPATH}/src", "--go_out=.", "--go-grpc_out=.", protoFile}
return runCommand(cmd, args)
}

9
cmd/tuugen/main.go
View File

@@ -22,8 +22,8 @@ func main() {
log.Fatalf("failed to load config, %v", err)
}
log.Println("Generating protos")
err = tuugen.GenerateProtos()
log.Printf("Generating protos from %s\n", cfg.ProtoFile)
err = tuugen.GenerateProtos(cfg.ProtoFile)
if err != nil {
log.Fatal(err)
}
@@ -44,6 +44,11 @@ func main() {
log.Fatalf("failed to generate data models: %v", err)
}
log.Println("Generate main.go")
if err := tuugen.GenerateMain(FS, cfg); err != nil {
log.Fatalf("failed to generate main file: %v", err)
}
log.Printf("Running 'go mod init %s' \n", cfg.ImportPath)
if err := tuugen.GoModInit(cfg.ImportPath); err != nil {
log.Fatalf("failed to run 'go mod init': %v", err)

30
cmd/tuugen/templates/main.go.tmpl
View File

@@ -1,5 +1,33 @@
package main
func main() {
import (
"os"
"fmt"
"net"
"log"
"google.golang.org/grpc"
pb "{{.ImportPath}}/{{.GRPCPath}}"
"{{.ImportPath}}/internal/service"
)
func main() {
lis, err := net.Listen("tcp", fmt.Sprintf(":%s", getEnv("GRPC_PORT", "8090")))
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
s := grpc.NewServer()
pb.Register{{.ServiceName}}Server(s, service.New(store))
if err := s.Serve(lis); err != nil {
log.Fatalf("failed to serve: %v", err)
}
}
func getEnv(name, defaultValue string) string {
v := os.Getenv(name)
if v == "" {
return defaultValue
}
return v
}

7
config.go
View File

@@ -1,6 +1,8 @@
package tuugen
import (
"path/filepath"
"gopkg.in/yaml.v2"
)
@@ -9,9 +11,14 @@ type Config struct {
ServiceName string `yaml:"service_name"`
ImportPath string `yaml:"import_path"`
ProtoFile string `yaml:"proto_file"`
GRPCFile string `yaml:"grpc_file"`
DataModels []DataModel `yaml:"data_models"`
}
func (c Config) GRPCPath() string {
return filepath.Dir(c.GRPCFile)
}
func YamlToConfig(b []byte) (Config, error) {
cfg := Config{}
err := yaml.Unmarshal(b, &cfg)

33
example_project/cmd/app/main.go Normal file
View File

@@ -0,0 +1,33 @@
package main
import (
"os"
"fmt"
"net"
"log"
"google.golang.org/grpc"
pb "github.com/cubixle/tuugen/example_project/internal/pb/service"
"github.com/cubixle/tuugen/example_project/internal/service"
)
func main() {
lis, err := net.Listen("tcp", fmt.Sprintf(":%s", getEnv("GRPC_PORT", "8090")))
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
s := grpc.NewServer()
pb.RegisterServiceServer(s, service.New(store))
if err := s.Serve(lis); err != nil {
log.Fatalf("failed to serve: %v", err)
}
}
func getEnv(name, defaultValue string) string {
v := os.Getenv(name)
if v == "" {
return defaultValue
}
return v
}

3
example_project/tuugen.yml
View File

@@ -1,6 +1,7 @@
project: tuugen_test_project
import_path: github.com/cubixle/tuugen/example_project
proto: service.proto
proto_file: service.proto
grpc_file: internal/pb/service/service_grpc.pb.go
service_name: Service
data_models:
- name: User

5
go.mod
View File

@@ -2,7 +2,4 @@ module github.com/cubixle/tuugen
go 1.16
require (
golang.org/x/tools v0.1.3 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
)
require gopkg.in/yaml.v2 v2.4.0

28
go.sum
View File

@@ -1,30 +1,4 @@
github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/mod v0.4.2 h1:Gz96sIWK3OalVv/I/qNygP42zyoKp3xptRVCWRFEBvo=
golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210510120138-977fb7262007 h1:gG67DSER+11cZvqIMb8S8bt0vZtiN6xWYARwirrOSfE=
golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.1.3 h1:L69ShwSZEyCsLKoAxDKeMvLDZkumEe8gXUZAjab0tX8=
golang.org/x/tools v0.1.3/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

50
service.go
View File

@@ -12,34 +12,12 @@ import (
"strings"
)
const grpcServiceFile = "./internal/pb/service/service_grpc.pb.go"
func GenerateService(FS embed.FS, cfg Config) error {
// read interface from project built protos.
if err := createFileFromProto(FS,
cfg.ServiceName,
"templates/service.go.tmpl",
cfg.ImportPath,
grpcServiceFile,
"./internal/service/service.go",
); err != nil {
return err
}
return nil
return createFileFromProto(FS, cfg, "templates/service.go.tmpl", "./internal/service/service.go")
}
func GenerateInteractor(FS embed.FS, cfg Config) error {
// read interface from project built protos.
if err := createFileFromProto(FS,
cfg.ServiceName,
"templates/interactors.go.tmpl",
cfg.ImportPath,
grpcServiceFile,
"./internal/interactors/interactors.go",
); err != nil {
return err
}
return nil
return createFileFromProto(FS, cfg, "templates/interactors.go.tmpl", "./internal/interactors/interactors.go")
}
type serviceDef struct {
@@ -71,7 +49,7 @@ func (s serviceFuncDef) ArgsToStr() string {
}
// generate the service/interactor template and store it to a file.
func createFileFromProto(FS embed.FS, serviceName, templateFile, importPath, protoFilePath, outputFile string) error {
func createFileFromProto(FS embed.FS, cfg Config, templateFile, outputFile string) error {
// load service template
t, err := template.ParseFS(FS, templateFile)
if err != nil {
@@ -89,7 +67,7 @@ func createFileFromProto(FS embed.FS, serviceName, templateFile, importPath, pro
if err != nil {
return nil
}
funcs, err := methodsFromProto(protoFilePath, importPath, serviceName)
funcs, err := methodsFromProto(cfg)
if err != nil {
return err
}
@@ -101,25 +79,23 @@ func createFileFromProto(FS embed.FS, serviceName, templateFile, importPath, pro
return f.Close()
}
func methodsFromProto(filepath, importPath, serviceName string) (serviceDef, error) {
func methodsFromProto(cfg Config) (serviceDef, error) {
funcs := []serviceFuncDef{}
fset := token.NewFileSet()
f, err := parser.ParseFile(fset, filepath, nil, 0)
f, err := parser.ParseFile(fset, cfg.GRPCFile, nil, 0)
if err != nil {
return serviceDef{}, fmt.Errorf("failed to parse proto go file: %w", err)
return serviceDef{}, fmt.Errorf("failed to parse compiled proto go file: %w", err)
}
imports := f.Imports
importStrs := []string{}
// ast.Print(fset, imports)
// return serviceDef{}, nil
for _, i := range imports {
servicePath := filepath.Dir(cfg.GRPCFile)
for _, i := range f.Imports {
importStrs = append(importStrs, i.Name.Name)
}
importStrs = append(importStrs, importPath+"/internal/pb/service", importPath+"/internal/interactors")
importStrs = append(importStrs, strings.Join([]string{cfg.ImportPath, strings.TrimLeft(servicePath, "/")}, "/"), cfg.ImportPath+"/internal/interactors")
for _, m := range f.Scope.Objects {
if m.Name != serviceName+"Server" {
if m.Name != cfg.ServiceName+"Server" {
continue
}
decl := m.Decl.(*ast.TypeSpec)
@@ -140,10 +116,6 @@ func methodsFromProto(filepath, importPath, serviceName string) (serviceDef, err
f.Returns = parseFieldList(ft.Results)
}
funcs = append(funcs, f)
// err = ast.Print(fset, ft.Params)
// if err != nil {
// return serviceDef{}, err
// }
}
}
return serviceDef{Funcs: funcs, Imports: importStrs}, nil