feat: add versions for generated code

Author: sysulq

cmd/kod/internal/generate_generator.go

@@ -13,6 +13,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"runtime/debug"
 	"sort"
 	"strconv"
 	"strings"
@@ -644,6 +645,11 @@ func (g *generator) componentRef(comp *component) string {
 func (g *generator) generateImports(p printFn) {
 	p(`// Code generated by "kod generate". DO NOT EDIT.`)
 	p("//go:build !ignoreKodGen")
+	debugInfo, ok := debug.ReadBuildInfo()
+	if ok {
+		p(`// versions:`)
+		p("// - %s\t%s", debugInfo.Path, debugInfo.Main.Version)
+	}
 	p("")
 	p("package %s", g.pkg.Name)
 	p("")
@@ -667,6 +673,9 @@ func (g *generator) generateFullMethodNames(p printFn) {
 	p(`const (`)
 	for _, comp := range g.components {
 		for _, m := range comp.methods() {
+			if g.getFirstArgTypeString(m) != "context.Context" {
+				continue
+			}
 			p(`// %s is the full name of the method [%s.%s].`, comp.fullMethodNameVar(m.Name()), comp.implName(), m.Name())
 			p(`%s = %q`, comp.fullMethodNameVar(m.Name()), comp.fullFullMethodName(m.Name()))
 		}
@@ -790,10 +799,7 @@ func (g *generator) generateLocalStubs(p printFn) {
 
 			mt := m.Type().(*types.Signature)
 
-			firstArgTypeString := ""
-			if mt.Params().Len() > 0 {
-				firstArgTypeString = g.tset.genTypeString(mt.Params().At(0).Type())
-			}
+			firstArgTypeString := g.getFirstArgTypeString(m)
 
 			p(``)
 			p(`// %s wraps the method [%s.%s].`, m.Name(), comp.implName(), m.Name())
@@ -844,6 +850,15 @@ func (g *generator) generateLocalStubs(p printFn) {
 	}
 }
 
+func (g *generator) getFirstArgTypeString(m *types.Func) string {
+	mt := m.Type().(*types.Signature)
+
+	if mt.Params().Len() > 0 {
+		return g.tset.genTypeString(mt.Params().At(0).Type())
+	}
+	return ""
+}
+
 func (g *generator) setReturnsList(sig *types.Signature) string {
 	var returns strings.Builder
 	for i := 0; i < sig.Results().Len(); i++ {

cmd/kod/internal/mock_watcher_test.go

@@ -10,6 +10,7 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"runtime/debug"
 	"strings"
 	"time"
 
@@ -202,9 +203,17 @@ func makeInterfaceHead(pkgName string, imports []string) []string {
 	output := []string{
 		"// Code generated by \"kod generate\"; DO NOT EDIT.",
 		"",
+	}
+	debugInfo, ok := debug.ReadBuildInfo()
+	if ok {
+		output = append(output, "// versions:")
+		output = append(output, fmt.Sprintf("// - kod\t%s", debugInfo.Main.Version))
+	}
+
+	output = append(output, []string{
 		"package " + pkgName,
 		"import (",
-	}
+	}...)
 	output = append(output, imports...)
 	output = append(output,
 		")",
@@ -265,7 +274,8 @@ func createFile(c *cobra.Command, objs map[string]*makeInterfaceFile) error {
 		}
 
 		if commandExists("mockgen") {
-			cmd := exec.Command("mockgen", "-source", fileName, "-destination", filepath.Join(obj.DirPath, "kod_gen_mock.go"), "-package", pkgName, "-typed")
+			cmd := exec.Command("mockgen", "-source", fileName, "-destination", filepath.Join(obj.DirPath, "kod_gen_mock.go"),
+				"-package", pkgName, "-typed", "-build_constraint", "!ignoreKodGen")
 			cmd.Stderr = os.Stderr
 			cmd.Stdout = os.Stdout