From c58ac3d0f0edf188e6ad7c8434a90567f661cc2e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Olivier=20Mengu=C3=A9?= <dolmen@cpan.org>
Date: Mon, 25 Aug 2025 15:09:40 +0200
Subject: [PATCH 1/2] _codegen: copy package
 github.com/ernesto-jimenez/gogen/imports

Copy code from dependency github.com/ernesto-jimenez/gogen/imports
(which hasn't evolved since 2018) as package _codegen/internal/imports.

This is imported from https://github.com/ernesto-jimenez/gogen at commit
d7d4131e6607813977e78297a6060f360f056a97.
See https://github.com/ernesto-jimenez/gogen/tree/d7d4131e6607813977e78297a6060f360f056a97/imports

The license block is added to match the LICENSE file from the source
repository.
---
 _codegen/internal/imports/imports.go | 108 +++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 _codegen/internal/imports/imports.go

diff --git a/_codegen/internal/imports/imports.go b/_codegen/internal/imports/imports.go
new file mode 100644
index 000000000..a0c7e2b6a
--- /dev/null
+++ b/_codegen/internal/imports/imports.go
@@ -0,0 +1,108 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2015 Ernesto Jiménez
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+package imports
+
+import (
+	"go/types"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+type Importer interface {
+	AddImportsFrom(t types.Type)
+	Imports() map[string]string
+}
+
+// imports contains metadata about all the imports from a given package
+type imports struct {
+	currentpkg string
+	imp        map[string]string
+}
+
+// AddImportsFrom adds imports used in the passed type
+func (imp *imports) AddImportsFrom(t types.Type) {
+	switch el := t.(type) {
+	case *types.Basic:
+	case *types.Slice:
+		imp.AddImportsFrom(el.Elem())
+	case *types.Pointer:
+		imp.AddImportsFrom(el.Elem())
+	case *types.Named:
+		pkg := el.Obj().Pkg()
+		if pkg == nil {
+			return
+		}
+		if pkg.Name() == imp.currentpkg {
+			return
+		}
+		imp.imp[cleanImportPath(pkg.Path())] = pkg.Name()
+	case *types.Tuple:
+		for i := 0; i < el.Len(); i++ {
+			imp.AddImportsFrom(el.At(i).Type())
+		}
+	default:
+	}
+}
+
+func cleanImportPath(ipath string) string {
+	return gopathlessImportPath(
+		vendorlessImportPath(ipath),
+	)
+}
+
+func gopathlessImportPath(ipath string) string {
+	paths := strings.Split(os.Getenv("GOPATH"), ":")
+	for _, p := range paths {
+		ipath = strings.TrimPrefix(ipath, filepath.Join(p, "src")+string(filepath.Separator))
+	}
+	return ipath
+}
+
+// vendorlessImportPath returns the devendorized version of the provided import path.
+// e.g. "foo/bar/vendor/a/b" => "a/b"
+func vendorlessImportPath(ipath string) string {
+	// Devendorize for use in import statement.
+	if i := strings.LastIndex(ipath, "/vendor/"); i >= 0 {
+		return ipath[i+len("/vendor/"):]
+	}
+	if strings.HasPrefix(ipath, "vendor/") {
+		return ipath[len("vendor/"):]
+	}
+	return ipath
+}
+
+// AddImportsFrom adds imports used in the passed type
+func (imp *imports) Imports() map[string]string {
+	return imp.imp
+}
+
+// New initializes a new structure to track packages imported by the currentpkg
+func New(currentpkg string) Importer {
+	return &imports{
+		currentpkg: currentpkg,
+		imp:        make(map[string]string),
+	}
+}

From 242e746a97a57ce7c85eaa27ecf471eb97311188 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Olivier=20Mengu=C3=A9?= <dolmen@cpan.org>
Date: Mon, 25 Aug 2025 15:23:08 +0200
Subject: [PATCH 2/2] _codegen: use our imported copy of
 github.com/ernesto-jimenez/gogen

Use our imported copy of package
github.com/ernesto-jimenez/gogen/imports to remove one external
dependency.
---
 _codegen/go.mod  | 2 --
 _codegen/go.sum  | 2 --
 _codegen/main.go | 2 +-
 3 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/_codegen/go.mod b/_codegen/go.mod
index 31a7e991c..c295a36ba 100644
--- a/_codegen/go.mod
+++ b/_codegen/go.mod
@@ -1,5 +1,3 @@
 module github.com/stretchr/testify/_codegen
 
 go 1.11
-
-require github.com/ernesto-jimenez/gogen v0.0.0-20180125220232-d7d4131e6607
diff --git a/_codegen/go.sum b/_codegen/go.sum
index 1c1b88eb5..e69de29bb 100644
--- a/_codegen/go.sum
+++ b/_codegen/go.sum
@@ -1,2 +0,0 @@
-github.com/ernesto-jimenez/gogen v0.0.0-20180125220232-d7d4131e6607 h1:cTavhURetDkezJCvxFggiyLeP40Mrk/TtVg2+ycw1Es=
-github.com/ernesto-jimenez/gogen v0.0.0-20180125220232-d7d4131e6607/go.mod h1:Cg4fM0vhYWOZdgM7RIOSTRNIc8/VT7CXClC3Ni86lu4=
diff --git a/_codegen/main.go b/_codegen/main.go
index e193a74a5..574985181 100644
--- a/_codegen/main.go
+++ b/_codegen/main.go
@@ -23,7 +23,7 @@ import (
 	"strings"
 	"text/template"
 
-	"github.com/ernesto-jimenez/gogen/imports"
+	"github.com/stretchr/testify/_codegen/internal/imports"
 )
 
 var (