/
v_one.go
130 lines (119 loc) · 3.89 KB
/
v_one.go
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package config
import (
"fmt"
"io"
"path/filepath"
yaml "gopkg.in/yaml.v3"
)
type V1GenerateSettings struct {
Version string `json:"version" yaml:"version"`
Packages []v1PackageSettings `json:"packages" yaml:"packages"`
Overrides []Override `json:"overrides,omitempty" yaml:"overrides,omitempty"`
Rename map[string]string `json:"rename,omitempty" yaml:"rename,omitempty"`
}
type v1PackageSettings struct {
Name string `json:"name" yaml:"name"`
Engine Engine `json:"engine,omitempty" yaml:"engine"`
Path string `json:"path" yaml:"path"`
Schema Paths `json:"schema" yaml:"schema"`
Queries Paths `json:"queries" yaml:"queries"`
EmitInterface bool `json:"emit_interface" yaml:"emit_interface"`
EmitJSONTags bool `json:"emit_json_tags" yaml:"emit_json_tags"`
EmitDBTags bool `json:"emit_db_tags" yaml:"emit_db_tags"`
EmitPreparedQueries bool `json:"emit_prepared_queries" yaml:"emit_prepared_queries"`
EmitExactTableNames bool `json:"emit_exact_table_names,omitempty" yaml:"emit_exact_table_names"`
EmitEmptySlices bool `json:"emit_empty_slices,omitempty" yaml:"emit_empty_slices"`
JSONTagsCaseStyle string `json:"json_tags_case_style,omitempty" yaml:"json_tags_case_style"`
Overrides []Override `json:"overrides" yaml:"overrides"`
}
func v1ParseConfig(rd io.Reader) (Config, error) {
dec := yaml.NewDecoder(rd)
dec.KnownFields(true)
var settings V1GenerateSettings
var config Config
if err := dec.Decode(&settings); err != nil {
return config, err
}
if settings.Version == "" {
return config, ErrMissingVersion
}
if settings.Version != "1" {
return config, ErrUnknownVersion
}
if len(settings.Packages) == 0 {
return config, ErrNoPackages
}
if err := settings.ValidateGlobalOverrides(); err != nil {
return config, err
}
for i := range settings.Overrides {
if err := settings.Overrides[i].Parse(); err != nil {
return config, err
}
}
for j := range settings.Packages {
if settings.Packages[j].Path == "" {
return config, ErrNoPackagePath
}
for i := range settings.Packages[j].Overrides {
if err := settings.Packages[j].Overrides[i].Parse(); err != nil {
return config, err
}
}
if settings.Packages[j].Name == "" {
settings.Packages[j].Name = filepath.Base(settings.Packages[j].Path)
}
if settings.Packages[j].Engine == "" {
settings.Packages[j].Engine = EnginePostgreSQL
}
}
return settings.Translate(), nil
}
func (c *V1GenerateSettings) ValidateGlobalOverrides() error {
engines := map[Engine]struct{}{}
for _, pkg := range c.Packages {
if _, ok := engines[pkg.Engine]; !ok {
engines[pkg.Engine] = struct{}{}
}
}
usesMultipleEngines := len(engines) > 1
for _, oride := range c.Overrides {
if usesMultipleEngines && oride.Engine == "" {
return fmt.Errorf(`the "engine" field is required for global type overrides because your configuration uses multiple database engines`)
}
}
return nil
}
func (c *V1GenerateSettings) Translate() Config {
conf := Config{
Version: c.Version,
}
for _, pkg := range c.Packages {
conf.SQL = append(conf.SQL, SQL{
Engine: pkg.Engine,
Schema: pkg.Schema,
Queries: pkg.Queries,
Gen: SQLGen{
Go: &SQLGo{
EmitInterface: pkg.EmitInterface,
EmitJSONTags: pkg.EmitJSONTags,
EmitDBTags: pkg.EmitDBTags,
EmitPreparedQueries: pkg.EmitPreparedQueries,
EmitExactTableNames: pkg.EmitExactTableNames,
EmitEmptySlices: pkg.EmitEmptySlices,
Package: pkg.Name,
Out: pkg.Path,
Overrides: pkg.Overrides,
JSONTagsCaseStyle: pkg.JSONTagsCaseStyle,
},
},
})
}
if len(c.Overrides) > 0 || len(c.Rename) > 0 {
conf.Gen.Go = &GenGo{
Overrides: c.Overrides,
Rename: c.Rename,
}
}
return conf
}