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|
package codegen
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"regexp"
"syscall"
"github.com/pkg/errors"
"github.com/vektah/gqlgen/codegen/templates"
"github.com/vektah/gqlgen/neelance/schema"
"golang.org/x/tools/imports"
)
func Generate(cfg Config) error {
if err := cfg.normalize(); err != nil {
return err
}
_ = syscall.Unlink(cfg.Exec.Filename)
_ = syscall.Unlink(cfg.Model.Filename)
modelsBuild, err := cfg.models()
if err != nil {
return errors.Wrap(err, "model plan failed")
}
if len(modelsBuild.Models) > 0 || len(modelsBuild.Enums) > 0 {
var buf *bytes.Buffer
buf, err = templates.Run("models.gotpl", modelsBuild)
if err != nil {
return errors.Wrap(err, "model generation failed")
}
if err = write(cfg.Model.Filename, buf.Bytes()); err != nil {
return err
}
for _, model := range modelsBuild.Models {
modelCfg := cfg.Models[model.GQLType]
modelCfg.Model = cfg.Model.ImportPath() + "." + model.GoType
cfg.Models[model.GQLType] = modelCfg
}
for _, enum := range modelsBuild.Enums {
modelCfg := cfg.Models[enum.GQLType]
modelCfg.Model = cfg.Model.ImportPath() + "." + enum.GoType
cfg.Models[enum.GQLType] = modelCfg
}
}
build, err := cfg.bind()
if err != nil {
return errors.Wrap(err, "exec plan failed")
}
var buf *bytes.Buffer
buf, err = templates.Run("generated.gotpl", build)
if err != nil {
return errors.Wrap(err, "exec codegen failed")
}
if err = write(cfg.Exec.Filename, buf.Bytes()); err != nil {
return err
}
if err = cfg.validate(); err != nil {
return errors.Wrap(err, "validation failed")
}
return nil
}
func (cfg *Config) normalize() error {
if err := cfg.Model.normalize(); err != nil {
return errors.Wrap(err, "model")
}
if err := cfg.Exec.normalize(); err != nil {
return errors.Wrap(err, "exec")
}
builtins := TypeMap{
"__Directive": {Model: "github.com/vektah/gqlgen/neelance/introspection.Directive"},
"__Type": {Model: "github.com/vektah/gqlgen/neelance/introspection.Type"},
"__Field": {Model: "github.com/vektah/gqlgen/neelance/introspection.Field"},
"__EnumValue": {Model: "github.com/vektah/gqlgen/neelance/introspection.EnumValue"},
"__InputValue": {Model: "github.com/vektah/gqlgen/neelance/introspection.InputValue"},
"__Schema": {Model: "github.com/vektah/gqlgen/neelance/introspection.Schema"},
"Int": {Model: "github.com/vektah/gqlgen/graphql.Int"},
"Float": {Model: "github.com/vektah/gqlgen/graphql.Float"},
"String": {Model: "github.com/vektah/gqlgen/graphql.String"},
"Boolean": {Model: "github.com/vektah/gqlgen/graphql.Boolean"},
"ID": {Model: "github.com/vektah/gqlgen/graphql.ID"},
"Time": {Model: "github.com/vektah/gqlgen/graphql.Time"},
"Map": {Model: "github.com/vektah/gqlgen/graphql.Map"},
}
if cfg.Models == nil {
cfg.Models = TypeMap{}
}
for typeName, entry := range builtins {
if !cfg.Models.Exists(typeName) {
cfg.Models[typeName] = entry
}
}
cfg.schema = schema.New()
return cfg.schema.Parse(cfg.SchemaStr)
}
var invalidPackageNameChar = regexp.MustCompile(`[^\w]`)
func sanitizePackageName(pkg string) string {
return invalidPackageNameChar.ReplaceAllLiteralString(filepath.Base(pkg), "_")
}
func abs(path string) string {
absPath, err := filepath.Abs(path)
if err != nil {
panic(err)
}
return filepath.ToSlash(absPath)
}
func gofmt(filename string, b []byte) ([]byte, error) {
out, err := imports.Process(filename, b, nil)
if err != nil {
return b, errors.Wrap(err, "unable to gofmt")
}
return out, nil
}
func write(filename string, b []byte) error {
err := os.MkdirAll(filepath.Dir(filename), 0755)
if err != nil {
return errors.Wrap(err, "failed to create directory")
}
formatted, err := gofmt(filename, b)
if err != nil {
fmt.Fprintf(os.Stderr, "gofmt failed: %s\n", err.Error())
formatted = b
}
err = ioutil.WriteFile(filename, formatted, 0644)
if err != nil {
return errors.Wrapf(err, "failed to write %s", filename)
}
return nil
}
|
