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package api
import (
"syscall"
"github.com/99designs/gqlgen/codegen"
"github.com/99designs/gqlgen/codegen/config"
"github.com/99designs/gqlgen/plugin"
"github.com/99designs/gqlgen/plugin/modelgen"
"github.com/99designs/gqlgen/plugin/resolvergen"
"github.com/99designs/gqlgen/plugin/schemaconfig"
"github.com/pkg/errors"
"golang.org/x/tools/go/packages"
)
func Generate(cfg *config.Config, option ...Option) error {
_ = syscall.Unlink(cfg.Exec.Filename)
_ = syscall.Unlink(cfg.Model.Filename)
plugins := []plugin.Plugin{
schemaconfig.New(),
modelgen.New(),
resolvergen.New(),
}
for _, o := range option {
o(cfg, &plugins)
}
for _, p := range plugins {
if mut, ok := p.(plugin.ConfigMutator); ok {
err := mut.MutateConfig(cfg)
if err != nil {
return errors.Wrap(err, p.Name())
}
}
}
// Merge again now that the generated models have been injected into the typemap
data, err := codegen.BuildData(cfg)
if err != nil {
return errors.Wrap(err, "merging failed")
}
if err = codegen.GenerateCode(data); err != nil {
return errors.Wrap(err, "generating core failed")
}
for _, p := range plugins {
if mut, ok := p.(plugin.CodeGenerator); ok {
err := mut.GenerateCode(data)
if err != nil {
return errors.Wrap(err, p.Name())
}
}
}
if err := validate(cfg); err != nil {
return errors.Wrap(err, "validation failed")
}
return nil
}
func validate(cfg *config.Config) error {
roots := []string{cfg.Exec.ImportPath()}
if cfg.Model.IsDefined() {
roots = append(roots, cfg.Model.ImportPath())
}
if cfg.Resolver.IsDefined() {
roots = append(roots, cfg.Resolver.ImportPath())
}
_, err := packages.Load(&packages.Config{Mode: packages.LoadTypes | packages.LoadSyntax}, roots...)
if err != nil {
return errors.Wrap(err, "validation failed")
}
return nil
}
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