snapshot of https://github.com/sqlc-dev/sqlc.git (main, 2026-09-16; blobs > 131072B omitted)

internal/config/v_two.go

@@ -0,0 +1,109 @@
+package config
+
+import (
+	"fmt"
+	"io"
+
+	yaml "gopkg.in/yaml.v3"
+)
+
+func v2ParseConfig(rd io.Reader) (Config, error) {
+	dec := yaml.NewDecoder(rd)
+	dec.KnownFields(true)
+	var conf Config
+	if err := dec.Decode(&conf); err != nil {
+		return conf, err
+	}
+	if conf.Version == "" {
+		return conf, ErrMissingVersion
+	}
+	if conf.Version != "2" {
+		return conf, ErrUnknownVersion
+	}
+	if len(conf.SQL) == 0 {
+		return conf, ErrNoPackages
+	}
+	if err := conf.validateGlobalOverrides(); err != nil {
+		return conf, err
+	}
+	// TODO: Store built-in plugins somewhere else
+	builtins := map[string]struct{}{
+		"go":   {},
+		"json": {},
+	}
+	plugins := map[string]struct{}{}
+	for i := range conf.Plugins {
+		if conf.Plugins[i].Name == "" {
+			return conf, ErrPluginNoName
+		}
+		if _, ok := builtins[conf.Plugins[i].Name]; ok {
+			return conf, ErrPluginBuiltin
+		}
+		if _, ok := plugins[conf.Plugins[i].Name]; ok {
+			return conf, ErrPluginExists
+		}
+		if conf.Plugins[i].Process == nil && conf.Plugins[i].WASM == nil {
+			return conf, ErrPluginNoType
+		}
+		if conf.Plugins[i].Process != nil && conf.Plugins[i].WASM != nil {
+			return conf, ErrPluginBothTypes
+		}
+		if conf.Plugins[i].Process != nil {
+			if conf.Plugins[i].Process.Cmd == "" {
+				return conf, ErrPluginProcessNoCmd
+			}
+		}
+		plugins[conf.Plugins[i].Name] = struct{}{}
+	}
+	for j := range conf.SQL {
+		if conf.SQL[j].Engine == "" {
+			return conf, ErrMissingEngine
+		}
+		if conf.SQL[j].Gen.Go != nil {
+			if conf.SQL[j].Gen.Go.Out == "" {
+				return conf, ErrNoPackagePath
+			}
+		}
+		if conf.SQL[j].Gen.JSON != nil {
+			if conf.SQL[j].Gen.JSON.Out == "" {
+				return conf, ErrNoOutPath
+			}
+		}
+		for _, cg := range conf.SQL[j].Codegen {
+			if cg.Plugin == "" {
+				return conf, ErrPluginNoName
+			}
+			if cg.Out == "" {
+				return conf, ErrNoOutPath
+			}
+			// TODO: Allow the use of built-in codegen from here
+			if _, ok := plugins[cg.Plugin]; !ok {
+				return conf, ErrPluginNotFound
+			}
+		}
+		if conf.SQL[j].StrictOrderBy == nil {
+			defaultValidate := true
+			conf.SQL[j].StrictOrderBy = &defaultValidate
+		}
+	}
+	return conf, nil
+}
+
+func (c *Config) validateGlobalOverrides() error {
+	engines := map[Engine]struct{}{}
+	for _, pkg := range c.SQL {
+		if _, ok := engines[pkg.Engine]; !ok {
+			engines[pkg.Engine] = struct{}{}
+		}
+	}
+	if c.Overrides.Go == nil {
+		return nil
+	}
+	usesMultipleEngines := len(engines) > 1
+	for _, oride := range c.Overrides.Go.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
+}